#Histamine N-Methyltransferase
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agreenroad · 6 months ago
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Dr J Williams On Histamine Intolerance - Natural Anti Histamine Vitamin E & Homeopathic Remedy; Histaminum Hydrochloricum
DR J E WILLIAMS: WHAT IS HISTAMINE INTOLERANCE, OR OVERLOAD? Histamine intolerance and DAO deficiency cause many of the symptoms associated with CFS/IBS and food sensitivities. Symptoms include nausea, vomiting, gas, bloating, abdominal pain, belly discomfort, constipation, diarrhea or diarrhea and alternating constipation, brain fog, rashes and other allergic skin and food sensitivities. In…
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didyouknow-wp · 8 months ago
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drritamarie · 1 year ago
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Histamine Intolerance: Understanding the Causes and Managing The Symptoms
Histamine intolerance is a syndrome that is becoming more widely recognized in the functional medicine community. Histamine builds up in the body due to the disorder's decreased capacity to break it down, which is what causes inflammation.  
What Is Histamine Intolerance 
Histamine intolerance refers to a condition where there is an impaired ability to break down histamine, leading to an accumulation of this biogenic amine in the body. Histamine is a chemical compound involved in various physiological processes, including the immune response, digestion, sleep and neurotransmission.
Normally, the body produces enzymes, such as diamine oxidase (DAO) and histamine N-methyltransferase (HNMT), which help metabolize and regulate histamine levels. However, in individuals with histamine intolerance, these enzymes are deficient or not functioning optimally, resulting in an excess of histamine.
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lenaglittleus · 6 years ago
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Histamine Intolerance Treatment And The Role Of Single Nucleotide Polymorphisms
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Histamine intolerance treatment must go beyond treating just the symptoms!
Histamine is the itchiest molecules in our body!  When histamine is released in the skin, its job is to dilate blood vessels causing redness to the skin, swelling, and of course itching. In the nasal mucosa, it causes a runny nose, sneezing, and that stuffy feeling we just cannot stand during allergy and cold/flu season. 
But what happens if histamine is over released or cannot be cleared out of the system? Typically occurring in women (due to the relationship of estrogen with histamine) this issue can be devastating and life altering.  We are going to go in-depth and discuss an under-diagnosed condition called Histamine Intolerance. This is not an approved medical diagnosis as of yet so it doesn’t have an ICD-10 code nor does this get taught in conventional medical schooling. 
Why could that be? There are many new tests and technologies that have emerged to help identify and treat patients with aims to treat the cause of symptoms rather than matching a drug to turn off a patient’s symptom(s).  Naturopathic and Functional Medicine is quickly becoming the saving grace to people who have these unexplained symptoms or who have been lumped into garbage bucket diagnoses called syndromes such as POTS, MCAS, IBS, Fibromyalgia, and so many more.
Human physiology is a complex interaction of the inherent genetics as expressed by the individual given environmental conditions and cellular aging. To begin understanding the framework in which we will grasp this complex information, we will start with the basics. Now, if you are more advanced in cell biology or physiology, please use this as a friendly review.
Genetics  
Genes are the “sentences” within our DNA that code for proteins.  There are other segments within our DNA that act as spacers, modifiers, and bookends to the plethora of “sentences” in the code; totaling over 23,000 genes.
Depending on the signals to the genes within the nucleus of our cells and mitochondria, certain genes are turned on and off accordingly.  The environment, thoughts, hormones, diet, exercise, infection, etc. are all factors that signal genes to turn on/off. 
Every cell is on a certain cycle of growth, rest, and programmed death called apoptosis (a healthy cell). Turning on and off genes is done by a process called methylation.  This is the movement of a single carbon and 3 hydrogen atoms called a methyl group (CH3) on or off of a gene’s switch. 
Methylation is not solely for gene switching, but for other incredible functions within the body and metabolism.  This modification of gene expression is called Epigenetics.  Epigenetics happens in an individual and can be passed down from grandmothers to their grandchildren. Let’s take a deeper dive into all of these functions.
Methylation
Methylation is the process of transferring a single carbon group to other larger molecules. There are enzymatic pathways that produce intermediate agents such as SAMe, and these in turn provide the necessary cofactors for other enzymes to function. Neurotransmitter, nucleic acid, amino acid, and hormone synthesis as well as lipid breakdown, heavy metal detoxification, and other elimination pathways all need this important process to work properly.
Histamine Intolerance Treatment And Single Nucleotide Polymorphism (SNP’s)
As stated previously, genes are like a sentence, composed of many letters and phrases.  But what happens when a single letter changes in the sentence “The dog dug a hole” to “The dug dug a hole”?
This can create a problem with the function of the final protein.  There are structural changes that are impacted from mutations such as the collagen disease called EDS (Ehlers-Danlos Syndrome), classically characterized by varying degrees of hyper-flexible joints and elastic skin; or the “poster child” of the SNP world called the MTHFR mutation impacting the way in which we use folate (B9) and B12. 
Many mutations can have no impact at all, some very little, and some quite severe in symptomatology. Other mutations in the genetic code that are even more severe cause death of the embryo and the pregnancy will end by the 10th-12th week in miscarriages.
Some mutations can give special advantages to an individual and if that has a natural benefit over another in a given population, that gene is passed on.  Over time in a given population, this will increase in frequency, and we call this evolution.
SNPs are very common so please do not think that you are a mutant, in fact we all are.  However, if an individual is having difficulties with their health that are beyond what classically are taught in medical school, these people often go many years or decades with dysfunction.
Hence there is a need for better education, awareness, and continued research to discover more about SNPs and their function.
Histamine
From the parent amino acid histidine, histamine is a very important signal within the body. In the figure below, you can see It has a function in just about every organ and tissue within the body.
Histamine is broken down by 2 enzymes:
            1. DAO (diamine oxidase)
            2. HNMT (histamine N-methyltransferase) SAMe cofactor dependent
The term histamine intolerance is better understood by a problem with the consumption of and release of excess histamine compounded with the body’s difficulty in regulation and breakdown of this signal.  As mentioned above, there are many different minor causes that can compound synergistically creating a variable level of symptomatology.
CASE STUDY:
A 39-year-old female presents to the clinic with a 30 year history of symptoms including joint laxity, headaches, brain fog, dizziness, and heart palpitations.  She has had many cardiologists, neurologists, rheumatologists, and even psychological counseling to treat the plethora of symptoms and give her diagnoses of the syndromes known as POTS (Postural Orthostatic Tachycardia Syndrome)and MCAS (Mast Cell Activation Syndrome). She was given Botox for her migraines, cardiovascular medications to control her heart rate, and drugs to keep her other histamine symptoms in check.
Upon analysis of her genetic SNPs, numerous genetic polymorphisms were identified impacting her ability to utilize B12, Folate, and B6 thereby decreasing her ultimate production of SAMe.  Furthermore, the COMT enzyme which degrades neurotransmitters was also affected. When COMT is altered, it speeds up the clearance of noradrenaline and adrenaline.
Once identified, strict elimination of certain supplements and foods containing these ingredients was recommended along with the necessary end products of the metabolic cycles to aid in the ultimate delivery of what she had been deficient in for all these years. Her two week follow up was astonishing, as she reported her “lights went on” for the first time. 
Her husband noticed the change within days of initiating the protocol and she had to decrease her cardiovascular drugs because they became too strong.  She is now one-month post treatment start date and holding strong with increased energy, mental alertness, muscle strength, and of course a vitality boost that has given her the confidence and strength to contemplate returning to the work force versus going on permanent disability.
Summary
People who are afflicted with horrible symptoms do not have to be!  There is an underlying cause that needs to be discovered.  If one doctor doesn’t have any idea, keep searching. 
Not all doctors are created equally, and with new research that comes out continuously, the reality of the way things are will get better.  If you have been told you are crazy, lazy, or have a rare syndrome, STOP and seek out a doctor who will listen to you and get to the bottom of it ASAP.
The post Histamine Intolerance Treatment And The Role Of Single Nucleotide Polymorphisms appeared first on Source of Health: Functional And Regenerative Medicine.
from Source Of Health, LLC https://sourceofhealthllc.tumblr.com/post/184560017367
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sourceofhealthllc · 6 years ago
Text
Histamine Intolerance Treatment And The Role Of Single Nucleotide Polymorphisms
Tumblr media
Histamine intolerance treatment must go beyond treating just the symptoms!
Histamine is the itchiest molecules in our body!  When histamine is released in the skin, its job is to dilate blood vessels causing redness to the skin, swelling, and of course itching. In the nasal mucosa, it causes a runny nose, sneezing, and that stuffy feeling we just cannot stand during allergy and cold/flu season. 
But what happens if histamine is over released or cannot be cleared out of the system? Typically occurring in women (due to the relationship of estrogen with histamine) this issue can be devastating and life altering.  We are going to go in-depth and discuss an under-diagnosed condition called Histamine Intolerance. This is not an approved medical diagnosis as of yet so it doesn’t have an ICD-10 code nor does this get taught in conventional medical schooling. 
Why could that be? There are many new tests and technologies that have emerged to help identify and treat patients with aims to treat the cause of symptoms rather than matching a drug to turn off a patient’s symptom(s).  Naturopathic and Functional Medicine is quickly becoming the saving grace to people who have these unexplained symptoms or who have been lumped into garbage bucket diagnoses called syndromes such as POTS, MCAS, IBS, Fibromyalgia, and so many more.
Human physiology is a complex interaction of the inherent genetics as expressed by the individual given environmental conditions and cellular aging. To begin understanding the framework in which we will grasp this complex information, we will start with the basics. Now, if you are more advanced in cell biology or physiology, please use this as a friendly review.
Genetics  
Genes are the “sentences” within our DNA that code for proteins.  There are other segments within our DNA that act as spacers, modifiers, and bookends to the plethora of “sentences” in the code; totaling over 23,000 genes.
Depending on the signals to the genes within the nucleus of our cells and mitochondria, certain genes are turned on and off accordingly.  The environment, thoughts, hormones, diet, exercise, infection, etc. are all factors that signal genes to turn on/off. 
Every cell is on a certain cycle of growth, rest, and programmed death called apoptosis (a healthy cell). Turning on and off genes is done by a process called methylation.  This is the movement of a single carbon and 3 hydrogen atoms called a methyl group (CH3) on or off of a gene’s switch. 
Methylation is not solely for gene switching, but for other incredible functions within the body and metabolism.  This modification of gene expression is called Epigenetics.  Epigenetics happens in an individual and can be passed down from grandmothers to their grandchildren. Let’s take a deeper dive into all of these functions.
Methylation
Methylation is the process of transferring a single carbon group to other larger molecules. There are enzymatic pathways that produce intermediate agents such as SAMe, and these in turn provide the necessary cofactors for other enzymes to function. Neurotransmitter, nucleic acid, amino acid, and hormone synthesis as well as lipid breakdown, heavy metal detoxification, and other elimination pathways all need this important process to work properly.
Histamine Intolerance Treatment And Single Nucleotide Polymorphism (SNP’s)
As stated previously, genes are like a sentence, composed of many letters and phrases.  But what happens when a single letter changes in the sentence “The dog dug a hole” to “The dug dug a hole”?
This can create a problem with the function of the final protein.  There are structural changes that are impacted from mutations such as the collagen disease called EDS (Ehlers-Danlos Syndrome), classically characterized by varying degrees of hyper-flexible joints and elastic skin; or the “poster child” of the SNP world called the MTHFR mutation impacting the way in which we use folate (B9) and B12. 
Many mutations can have no impact at all, some very little, and some quite severe in symptomatology. Other mutations in the genetic code that are even more severe cause death of the embryo and the pregnancy will end by the 10th-12th week in miscarriages.
Some mutations can give special advantages to an individual and if that has a natural benefit over another in a given population, that gene is passed on.  Over time in a given population, this will increase in frequency, and we call this evolution.
SNPs are very common so please do not think that you are a mutant, in fact we all are.  However, if an individual is having difficulties with their health that are beyond what classically are taught in medical school, these people often go many years or decades with dysfunction.
Hence there is a need for better education, awareness, and continued research to discover more about SNPs and their function.
Histamine
From the parent amino acid histidine, histamine is a very important signal within the body. In the figure below, you can see It has a function in just about every organ and tissue within the body.
Histamine is broken down by 2 enzymes:
            1. DAO (diamine oxidase)
            2. HNMT (histamine N-methyltransferase) SAMe cofactor dependent
The term histamine intolerance is better understood by a problem with the consumption of and release of excess histamine compounded with the body’s difficulty in regulation and breakdown of this signal.  As mentioned above, there are many different minor causes that can compound synergistically creating a variable level of symptomatology.
CASE STUDY:
A 39-year-old female presents to the clinic with a 30 year history of symptoms including joint laxity, headaches, brain fog, dizziness, and heart palpitations.  She has had many cardiologists, neurologists, rheumatologists, and even psychological counseling to treat the plethora of symptoms and give her diagnoses of the syndromes known as POTS (Postural Orthostatic Tachycardia Syndrome)and MCAS (Mast Cell Activation Syndrome). She was given Botox for her migraines, cardiovascular medications to control her heart rate, and drugs to keep her other histamine symptoms in check.
Upon analysis of her genetic SNPs, numerous genetic polymorphisms were identified impacting her ability to utilize B12, Folate, and B6 thereby decreasing her ultimate production of SAMe.  Furthermore, the COMT enzyme which degrades neurotransmitters was also affected. When COMT is altered, it speeds up the clearance of noradrenaline and adrenaline.
Once identified, strict elimination of certain supplements and foods containing these ingredients was recommended along with the necessary end products of the metabolic cycles to aid in the ultimate delivery of what she had been deficient in for all these years. Her two week follow up was astonishing, as she reported her “lights went on” for the first time. 
Her husband noticed the change within days of initiating the protocol and she had to decrease her cardiovascular drugs because they became too strong.  She is now one-month post treatment start date and holding strong with increased energy, mental alertness, muscle strength, and of course a vitality boost that has given her the confidence and strength to contemplate returning to the work force versus going on permanent disability.
Summary
People who are afflicted with horrible symptoms do not have to be!  There is an underlying cause that needs to be discovered.  If one doctor doesn’t have any idea, keep searching. 
Not all doctors are created equally, and with new research that comes out continuously, the reality of the way things are will get better.  If you have been told you are crazy, lazy, or have a rare syndrome, STOP and seek out a doctor who will listen to you and get to the bottom of it ASAP.
The post Histamine Intolerance Treatment And The Role Of Single Nucleotide Polymorphisms appeared first on Source of Health: Functional And Regenerative Medicine.
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battybat-boss · 6 years ago
Text
Are Vaccines Linked to Increase in Mast Cell Disease and Allergies?
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Mast Cell Disease and Vaccination: Is There Increased Risk?
by Barbara Loe Fisher and Carolyn Hendler The Vaccine Reaction
Do you or does someone you know have severe symptoms of itching, rashes, flushing, stomach or other body pain, frequent diarrhea, nausea, fatigue, brain fog, headache and severe allergies to certain foods, medications or insect stings that may include fainting episodes or anaphylaxis?
Although it has been classified as a rare immune system disorder, there are indications that Mast Cell Activation Syndrome (MCAS) may be more prevalent than previously thought and people can suffer for years without being correctly diagnosed.1
With severe allergies and chronic inflammatory diseases increasing in populations around the world, scientists are investigating the association between mast cell dysregulation and various brain and immune system disorders ranging from asthma, inflammatory bowel disease and chronic fatigue syndrome to ADHD, depression, autism and cancer.2 3 4 5
What are Mast Cells?
Mast cells are often described as the body's sentinels because they modulate and orchestrate the immune response and play a critical role in innate and adaptive immunity, as well as maintaining homeostasis in the body.6 7
Mast cells and basophils are types of white blood cells (granulocytes) that are made in the bone marrow. While basophils circulate in the blood, mast cells reside in tissues, primarily connective and mucosal tissues near blood vessels and nerves of the skin, gastrointestinal, respiratory and genitourinary tracts, and the brain.8 9
Mast cells and basophils are part of the body's first line of defense when responding to injury or foreign antigens, such as pathogenic bacteria, viruses, parasites, protozoa, fungi and toxins.10 
During the immune system's normal protective response to a perceived threat, mast cells can release over 200 potent pro-inflammatory mediators within seconds of activation, including histamine (amino acid product), heparin (anti-coagulant), tryptase (enzyme) and cytokines (cell signaling protein molecules).11 12
The activation of this normal protective inflammatory response to internal or external stress increases blood flow to the site of the infection or wound to aid in healing. Acute inflammatory responses are often accompanied by the four classic signs of redness, heat, swelling and pain, which eventually disappear as cells regenerate and inflammation resolves during the healing process.13
However, allergic inflammatory responses are also provoked by mast cell activation.14
What is Mast Cell Disease and MCAS?
Mast cell activation is common and helps combat threats to our health. However, when a dysregulated immune system overproduces mast cells or when mast cell activation is out of proportion to the perceived internal or external threat, it can compromise our health.
The most serious of mast cell activation diseases (MCAD) is systemic mastocytosis, which can develop when genetically altered mast cells infiltrate and accumulate in large numbers in major organ systems, such as the skin, liver and intestines.15 16
A rare form of MCAD is aggressive systemic mastocytosis, usually caused by somatic mutations in the KIT gene, which progresses rapidly and causes organ damage and failure.17
An even rarer form of mast cell disease is mast cell leukemia and mast cell sarcoma.18
Mast Cell Activation Syndrome (MCAS) is a common variation of mast cell disease and can be more or less severe depending upon epigenetic, environmental, lifestyle and other host factors. MCAS occurs when a normal amount of mast cells inappropriately and chronically release histamine and other pro-inflammatory mediators that can lead to persistent inflammation in one or more parts of the body.
Over time, chronic inflammation can damage cells if inflammation cannot be resolved and every organ in the body can be affected.19
Systemic mastocytosis is estimated to affect 1 in 10,000 people. However, the prevalence of MCAS is not known and some researchers estimate the less serious forms of mast cell dysregulation could affect between 10 and 30 percent of populations.20 21
Symptoms of MCAS
Symptoms of MCAS can wax and wane and often various symptoms start in early childhood, although people generally do not get diagnosed for decades after symptoms appear. The effects of mast cell dysregulation can cause a plethora of diverse symptoms, depending on where the mast cells are activated in the body.
Common symptoms of MCAS can include fatigue; pruritus (severe itching); migraine; frequent nausea and diarrhea; allergic reactions to certain foods, medications, chemicals, insect bites and environmental antigens; chronic sinus congestion or dry cough; gastro-esophageal reflux disease (GERD); urinary tract infections; muscle cramping; feeling cold; sweating, especially at night; hair loss; dry eyes; conjunctivitis (pink eye); mouth ulcers (canker sores); dental decay; heart palpitations; inability to concentrate and brain fog; anxiety, depression and insomnia.22 23
When mast cells overeact to a benign substance as if it were a foreign antigen posing a serious threat, symptoms can be life threatening like when a person has an anaphylactic reaction to peanuts.24
Mast cell over-activation and release of large amounts of histamine in the body can be unpredictable, so people with MCAS are at risk of reacting to different foods, alcohol or medications at any time, leaving them uncertain as to when they might have another reaction to something they previously were not aware was a trigger for mast cell activation.25
Many people with MCAS carry an epi-pen with them in case of anaphylaxis.
Diagnosing mast cell disease is difficult and involves blood and urine testing and, less frequently, skin or bone marrow biopsy.26
Most medical doctors in general practice are not well informed about MCAS, while doctors specializing in functional medicine tend to be more familiar with symptoms.
Functional medicine focuses on a personalized, integrative approach to investigating root causes of health problems by analyzing the unique genetic, epigenetic, biochemical, environmental and lifestyle factors that affect an individual's immune function and influence the development of complex chronic diseases.
Because MCAS can present differently in different people, the goal is to identify individual triggers for mast cell activation, including food (such as gluten, dairy, baker's yeast, shellfish, nuts, wheat, corn); or chemicals (alcohol, certain prescription medications, MSG, aspartame, artificial dyes, cleaning products); mold and spores; extreme heat or cold; vigorous exercise; stress or other potential triggers and avoid them.27
There are many unanswered questions about mast cell disease and few prescription drug treatments.28
There is evidence that certain flavonoids (such as Quercetin and Rutin) inhibit histamine release and expression of pro-inflammatory cytokines in mast cells. 29
MCAS and Chronic Disease
Because overactive mast cells release pro-inflammatory mediators causing widespread inflammation in the body, MCAS has been implicated in a number of diseases that involve chronic inflammation and immune dysfunction. There is evidence that MCAS is related to allergic/inflammatory diseases, autoimmune disorders, and autism spectrum disorder.30 31
Health problems that have been associated with MCAS include eczema, psoriasis, and other skin disorders; irritable bowel syndrome; small intestine bowel overgrowth (SIBO); interstitial cystitis (bladder pain syndrome); asthma; migraines; depression; anxiety; ADHD; Obsessive Compulsive Disorder (OCD); autoimmune diseases like rheumatoid arthritis, lupus and Hashimoto's; cancer; peripheral neuropathy, multiple sclerosis; diabetes; obesity; endometriosis; infertility; fibromyalgia and postural orthostatic tachycardia syndrome (POTS), among others.32 33 34
Symptoms of Histamine Intolerance
Histamine is a neurotransmitter that facilitates communications between neurons throughout the nervous system. Histamine levels in the body help control the sleep and wake cycle and influence metabolism, thyroid function, reproduction and management of stress, as well as regulate body temperature, maintain fluid balance in the body and other important functions. Histamine can also increase permeability of the blood brain barrier.35
People with histamine intolerance lack sufficient levels of Diame oxidase (DAO), a gut enxyme, and histamine N-methyltransferase (HNMT), a liver enzyme, which break down and detoxify histamine in foods, medications or alcohol. When these enzymes fail to do their job, high levels of histamine circulate in the blood and cause histamine intoxication.36
Eating histamine-rich foods, drinking alcohol or taking prescription drugs that release histamine and or inhibit DAO or HNMT enzyme activity can cause high histamine levels and symptoms like diarrhea, headache, sinus congestion, heart palpitations, itching and flushing, low blood pressure and many other symptoms.
The symptoms of histamine intolerance and MCAS are similar and a person can have either histamine intolerance of MCAS or both. The main difference between the two is that histamine intolerance involves the triggering of high levels of histamine in the blood that cannot be efficiently detoxified, while MCAS involves dysregulated mast cells releasing not only histamine but multiple inflammatory and other types of mediators in tissues of the body.37
There is some evidence for genetic predisposition to histamine intolerance. Like MCAS, histamine intolerance can be hard to diagnose even with blood and urine tests. Treatment for histamine intolerance focuses on avoiding histamine rich foods and alcohol or medications that block DAO or HNMT enzyme activity.
Some people with histamine intolerance take DAO supplements to help the body break down histamine or take anti-histamines to control levels of histamine in the blood.38
MCAS and Autism Spectrum Disorder
Over the past decade, a number of reports and studies have linked Autism Spectrum Disorder (ASD) with immune dysregulation and chronic inflammation in the body, including in the brain.39 40 41
There is evidence that mast cell dysregulation is associated with Autism Spectrum Disorder (ASD).42 43
Some researchers have suggested that the relationship between immune response and brain function may be negatively affected when toxins cross the blood brain barrier during a critical point in neural development, causing neurotoxicity and immune dysregulation that disrupts the natural neuron pruning process and contributes to the development of autism spectrum disorders. 44
If the immune system is dysregulated, it can affect the formation and necessary removal of physical connections between neurons that is critical to maintaining healthy brain cell function.45
ASD children have a higher rate of allergies (30%) compared to neurotypical children (2.5%).
Tufts University Professor Theodore Theoharides, PhD, MD, who has conducted extensive research into mast cell disorders, has published a series of studies on the association between MCAS and autism. The evidence he has provided suggests that overactive mast cells in the brain and gut triggered by non-allergic stimulus can lead to brain inflammation and chronic brain dysfunction with symptoms diagnosed as autism.
Evidence that mast cells play a role in ASD is also supported by the fact that the hypothalamus, which regulates behavior and language, houses the majority of mast cells in the brain and people with ASD often have problems associated with language and behavior.46
What Are Co-Factors for Developing MCAS?
Currently, MCAS is not considered to be a genetically inherited disease but there is evidence for epigenetic predisposition to development of MCAS as it tends to run in families, albeit with varying degrees of severity and presentations in individuals within the same family.47
Perinatal stress, environmental exposures, DNA methylation, somatic genetic mutations and interactions between microbiota and mast cells have been proposed as contributing co-factors.48 49 50
According to University of Minnesota Professor Lawrence Afrin, MD, an oncologist and leading mast cell authority, mast cell disease can present with different manifestations and outcomes for each person because every person is unique:
“Conveying a new understanding that all mast cell disease features inappropriate mast cell activation, the new top level mast cell activation disease (MCAD) encompasses various types of rare mastocytosis and likely prevalent mast cell activation syndrome (MCAS).
The apparent uniqueness in each patient with MCAD of constitutively activating mutational patterns in KIT and other mast cell regulatory elements likely is the principal driver of not only the specific clinical presentation, and therapeutic response profile, in each patient but also the great heterogeneity across this population.”51 
Inflammation and Vaccination
When the immune system repeatedly mounts an inappropriate acute inflammatory response to antigens or non-allergic substances, it can lead to unwanted chronic inflammation in the body that is common to a number of immune and neuroimmune system disorders.52 53
Vaccination stimulates an inflammatory immune response that promotes production of antibodies and the acquisition of artificial active immunity.54
However, unlike naturally acquired immunity that involves a normal inflammatory response producing both innate (cellular) and humoral (adaptive) immunity, most vaccines manipulate the immune system in way that only stimulates production of vaccine strain antibodies and humoral immunity.55
Because vaccine acquired artificial immunity is temporary, many vaccines contain adjuvants, such as aluminum or squalene, to stimulate a strong inflammatory response in the body, which involves mast cell activation.56
There is mounting scientific evidence that when individuals cannot tolerate hyper-stimulation of the immune system, the atypical inflammatory response to vaccination can remain unresolved, become chronic, and lead to allergy and autoimmunity.57
Vaccines contain many ingredients, including chemicals, virus like protein particles and heavy metals, such as aluminum adjuvants and mercury (Thimerosal) preservatives, as well as other substances that can cause inflammation.58 59
Mercury can activate and destabilize mast cells,60 61 which disrupts the blood brain barrier and makes it easier for mercury to enter the brain where it can remain for long periods of time.62
Even a low concentration of mercury has been shown to activate mast cell mediators in the brain. Scientists have demonstrated that Thimerosal-derived ethylmercury is a mitochondrial toxin and may damage mitochondrial DNA.63
Polysorbate 80 is a chemical emulsifier added to some vaccines. Polysorbate 80 has the ability to help deliver substances across the protective blood brain barrier and into the brain.64
When toxins enter the brain, mast cells are activated and cause inflammation.65
Polysorbate 80 has also been shown to increase histamine levels in animal studies.66
The first vaccine found to cause acute and chronic brain inflammation (acute and chronic encephalopathy) and permanent brain dysfunction was smallpox vaccine created by Edward Jenner in 1796.67
The first vaccine found to cause acute and chronic encephalopathy with permanent brain dysfunction that ranged from learning disabilities and behavior disorders to profound mental retardation was whole cell pertussis vaccine licensed in 1915 and combined in 1949 with diphtheria and tetanus vaccine to create DPT vaccine.68 69
Whole cell pertussis vaccine ingredients include pertussis toxin, endotoxin, aluminum and mercury.70
Cases of pertussis vaccine-related autism were first described in the book DPT: A Shot in the Dark published in 1985.71 72
Is Mast Cell Disease a Risk Factor for Vaccine Reactions?
Mast cells play an important part in keeping the body healthy, but when they malfunction, can cause system wide chronic inflammation in the body that interferes with quality of life or can even cause death.
Dr. Afrin recently related the story of a patient, “who in the first year of his life had been perfectly normal and then, within hours of his first DTP vaccine at age one, developed into just a terrible multi-system inflammatory mess, including essentially acute onset autism.” When he was 20 years old, biopsies tested positive for mast cells. He was subsequently treated for MCAS with remarkable improvement.73
Most babies in the U.S. are being given 25 doses of nine different vaccines (or more) by their first birthday and can receive eight or more vaccines simultaneously.74
As mentioned previously, there are ingredients in vaccines that provoke inflammatory responses in the body that involve mast cell activation.75
Although for the past several decades, most pediatricians and public health officials have rejected the possibility of a relationship between vaccination and the development of allergic and autoimmune disorders,76 the apparent increase in mast cell dysregulation in highly vaccinated populations deserves more in-depth investigation.
The two outstanding questions are:
Does repeated atypical manipulation of the immune system with multiple vaccines in early life trigger MCAS or development of histamine intolerance in genetically or epigenetically predisposed individuals?
Are individuals with undiagnosed MCAS or histamine intolerance at greater risk for suffering vaccine reactions, particularly if they have a personal or family history of allergy or autoimmunity?
There is urgent need for more basic science research into how and why MCAS and histamine intolerance occurs and whether vaccination is a co-factor in increasing individual risks for mast cell dysregulation.
Read the full article at TheVaccineReaction.org.
Comment on this article at VaccineImpact.com.
References:
1 Jennings S, Russell N et al. The Mastocytosis Society Survey on Mast Cell Disorders: Patient Experiences and Perceptions. J Allergy Immunol Pract 2014; 1(1): 70-76. 2 Afrin LB. Mast cell activation and the modern epidemic of chronic inflammatory disease.Translational Research 2016; 174: 33-59. 3 Galli Sj, Tsai M, Piliponsky AM. The development of allergic inflammation. Nature 2008; 454(7203): 445-454. 4 Theoharides TC. Autism Spectrum Disorders and Mastocytosis. Int J Immunopath Pharmacol2009; 22(4): 859-865. 5 Theoharides T, Conti P. Mast cells: the Jekyl and Hyde of tumor growth. Trends in Immunology 2004; 25(5). 6 Zayas E, deSilva M et al. Mast Cell Function: A New Vision of an Old Cell. J Histochem Cytochem 2014; 62(1). 7 Whittemore M, Dileepan K, Wood J. Mast Cell: A Multi-Functional Master Cell. Front Immunol2016; 6:620. 8 University of Rochester Medical Center. White Blood Cells. Health Encyclopedia. 9 Nautiyal KM, Riberio AC et al. Brain mast cells link the immune system to anxiety-like behaviors. Proc Nat Acad Sci 2008; 105(46). 10 Urb M, Sheppard D. The Role of Mast Cells in the Defense Against Pathogens. PLoS Pathog Apr. 26, 2012. 11 Gilfillan S, Austin SJ, Metcalfe DD. Mast Cell Biology: Introduction and Overview. Adv Exp Med Biol 2011; 716: 2-12. 12 Amin K. The Role of Mast Cells in Allergic Inflammation. Respiratory Medicine 2012; 106: 9-14. 13 Encyclopedia Britannica. Inflammation (Pathology). Feb. 28, 2019. 14 Amin K. The Role of Mast Cells in Allergic Inflammation. Respiratory Medicine 2012; 106: 9-14. 15 Metcalfe DD. Mast cells and mastocytosis. Blood 2008; 112(4): 946-956. 16 The Mastocytosis Society. Mast Cell Diseases: Overview, Diagnosis, Definition and Classification. 2018. 17 Molderings GJ, Brettner S et al. Mast Cell Activation Disease: A Concise Practical Guide for Diagnostic Workup and Therapeutic Options. J Hematol Oncol 2011; 4(10). 18 National Institutes of Health. Systemic Mastocytosis. Genetic and Rare Diseases Information Center 2018. 19 Hamilton MJ, Hornick JL et al. Mast cell activation syndrome: A newly recognized disorder with systemic clinical manifestations. J Clin Allergy Immunol 2011; 128(1). 20 Akin C. Mast cell activation syndromes. J Allergy Clin Immunol 2017; 140(2): 349-355. 21 Molderings, GJ, Zienkiewicz T, Risk of solid cancer in patients with mast cell activation syndrome: results from Germany and USA. F1000 Res 2017; 6: 1889. 22 Afrin L. Presentation, Diagnosis and Management of Mast Cell Activation Syndrome. Nova Science Publishers 2013. 23 Hoffman B. Mast Cell Activation Syndrome and Histamine: When Your Immune System Runs Rampant. Hoffman Centre for Integrative and Functional Medicine Nov. 8, 2017. 24 Santos AF, Couto-Francisco N et al. A novel human mast cell activation test for peanut allergy.J Allergy Clin Immunol May 3, 2018. 25 Maintz L, Novak N. Histamine and histamine intolerance. Am J Clin Nutr 2007; 85(5): 1185-1196. 26 National Institutes of Health. Systemic Mastocytosis. Genetic and Rare Diseases Information Center 2018. 27 MastCellDisease. Mast Cell Triggers: What Are the Most Common Triggers? Dec. 12, 2017. 28 Molderings GJ, Haenisch B et al. Pharmacologic treatment options for mast cell activation disease. Naunyn-Schmiedeberg's Archive of Pharmacology 2016; 389(7): 671-694. 29 Hyo-Hyuan P, Lee S et al. Flavanoids inhibit histamine release and expression of proinflammatory cytokines in mast cells. Arch Pharmacol Res 2008; 31:1303. 30 Zayas E, deSilva M et al. Mast Cell Function: A New Vision of an Old Cell. J Histochem Cytochem 2014; 62(1): 698-738. 31 Theoharides TC, Tsilioni I et al. Atopic Diseases and Inflammation of the Brain in the Pathogenesis of Autism Spectrum Disorders. Trans Psychiatry 2016; 6(6). 32 Theoharides TC, Konstantinos-Dionysios A et al. Mast Cells and Inflammation. Biochimica Biophysica Acta 2012; 1822(1): 21-33. 33 Conti P, Caraffa AL. Mast cell, pro-inflammatory and anti-inflammatory: Jekyll and Hyde, the story continues. Journal of Biological Regulators and Homeostatic Agents 2017; 31(2): 263-267. 34 Weinstock LB, Brook JB et al. Successful treatment of postural orthostatic tachycardia and mast cell activation syndromes using naltrexone, immunoglobulin and antibiotic treatment. BMJ Case Reports Jan. 11, 2018. 35 Pizano J. The many effects of histamine. Integrative Therapeutics Mar. 1, 2016. 36 Kovacova-Hanuskova E, Buday T et al. Histamine, histamine intoxication and intolerance.Allergologia et Immunopathologia 2015; 43: 498-506. 37 Hoffman B. Is Your Histamine Intolerance Actually Mast Cell Activation Syndrome? Hoffman Centre for Integrative and Functional Medicine Dec. 5, 2017. 38 Manzotti G, Breda D et al. Serum diamine oxidase activity in patients with histamine intolerance. Int J Immunopathol Pharmacol 2016; 29(1): 105-111. 39 Tonhajzerova I, Ondrejka I et al. (2015) Inflammatory Activity in Autism Spectrum Disorder. In: Pokorski M. (eds) Respiratory Health. Advances in Experimental Medicine and Biology2015. 40 Rossignol DA, Frye RE. A review of research trends in physiologic abnormalities in autism spectrum disorders: immune dysregulation, inflammation, oxidative stress, mitochondrial dysfunction and environmental toxicant exposures. Mol Psychiatry 2012; 17(4): 389-401. 41 Theoharides TC, Asadi S, Patel AB. Focal brain inflammation and autism. J Neuroinflamm2013; 10: 46. 42 Theoharides TC, Doyle BS. Autism, Gut-Blood-Brain Barriers and Mast Cells. J Clin Psychopharmacol 2008; 28(5): 479-483. 43 Theoharides TC, Stewart JM et al. Mast cells, brain inflammation and autism. Eur J Pharmacol 2016; 778: 96-102. 44 Jacome MCI, Chacon LMM et al. Peripheral Inflammatory Markers Contributing to Comorbidities in Autism. Behav Sci (Basel) 2016; 6(4). 45 University of Rochester Medical Center. The Brain's Gardeners: Immune Cells “Prune” Connections Between Neurons. Mar. 7, 2016. 46 Theoharides TC. Is a Subtype of Autism an Allergy of the Brain? Clin Thera 2013; 35(5): 584-591. 47 Molderings GJ, Haenisch B et al. Familial Occurrence of Systemic Mast Cell Activation Disease. PLOS One Sept. 13, 2013 48 Monticelli S, Leoni C. Epigenetic and transcriptional control of mast cell responses. F1000 Research Nov. 29, 2017. 49 U.S. National Library of Medicine. What Is A Gene Mutations and How Do Mutations Occur?July 3, 2018. 50 Afrin LB, Khouruts A. Mast Cell Activation Disease and Microbiotic Interactions. Clin Thera2015; 37(5)): 941-953. 51 Ibid. 52 Walker ME, Hatfield JK, Brown MA. New insights into the role of mast cells in autoimmunity: Evidence for a common mechanism of action? Biochimica et Biophysica Acta 2012; 1822(1): 57-65. 53 Gibney SM, Drexhage HA. Evidence for a Dysregulated Immune System in the Etiology of Psychiatric Disorders. J Neuroimmune Pharmacol 2013; 8(4): 900-920. 54 Ghaffar A. Immunization. University of South Carolina School of Medicine. Nov. 8, 2017. 55 Rydyznski CE, Waggoner SN. Boosting vaccine efficacy the natural (killer) way. Trends Immunol 2015; 36(9): 536-548. 56 deVeer M. New Development in Vaccine Research – Unveiling the Secret of Vaccine Adjuvants. Discovery Medicine Sept. 15, 2011. 57 Vera-Lastra, Medina G et al. Autoimmune/inflammatory syndrome induced by adjuvants (Shoenfeld's syndrome): clinical and immunological spectrum.  Expert Review Clinical Immunology  2013; 9(4): 361-373. 58 Fisher BL. Are Vaccine Ingredients Safe? NVIC Jan. 26, 2018. 59 Singh B. Vaccine Ingredient Toxicity – Unraveling the Intiation of Oxidative Damage to Myelin and Role of Mast Cells, Microglia and Schwan Cells in Neurogenic Inflammation and Inhibition of Remyelination. Research Gate  Feb. 10, 2017. 60 Kempuraj D, Asadi S et al. Mercury induces inflammatory mediator release from mast cells.Journal of Neuroinflammation 2010; 7:20. 61 Bent S, Gottsch C et al. The effects of heavy metal ions (CD2+, Hg2+, Pb2+, Bi3+) on histamine release from human adenoidal and cutaneous mast cells. Agents and Actions 1992; 36 (Suppl 2). 62 Cariccio VL, Sama A et al. Mercury Involvement in Neuronal Damage and Neurodegenerative Diseases. Biol Trace Element Res May 18, 2018. 63 Sharpe AM, Livingston AD et al. Thimerosal-Derived Ethylmercury is a Mitochondrial Toxin in Human Astrocytes: Possible Role in Fenton Chemistry in the Oxidation and Breakage of mtDNA. J Toxicol June 16, 2012. 64 Koffie RM, Farrar CT et al. Nanoparticles enhance brain delivery of blood-brain barrier-impermeable probes for in vivo optical and magnetic resonance imaging. Proc Natl Acad Sci2011; 108 (46): 18837-18842. 65 Parpia R. Polysorbate 80: A Risky Vaccine Ingredient. The Vaccine Reaction Jan. 7, 2016. 66 Masini E, Planchenault J et al. Histamine releasing properties of Polysorbate 80 in vitro and in vivo: correlation with its hypotensive action in the dog. Agents Action 1985; 16(6): 470-477. 67 Miravelle A, Roos KL. Encephalitis Complicating Smallpox Vaccination. JAMA Neurology2003; 60(7): 925-928. 68 Institute of Medicine Vaccine Safety Committee. Adverse Effects of Pertussis and Rubella Vaccines. Chapter 4: Encephalopathy (pp. 86-88). Washington, DC. The National Academies Press 1991. 69 Institute of Medicine Committee to Study New Research on Vaccines. DPT Vaccine and Chronic Nervous System Dysfunction: A New Analysis. Executive Summary (pp.1-2) Washington, D.C. The National Academies Press 1994. 70 WHO. Recommendations for whole cell pertussis vaccine. WHO Technical Report Series No. 941 2007. 71 Coulter HL, Fisher BL. DPT: A Shot in the Dark. Harcourt Brace Jovanovich 1985. 72 Fisher BL. Vaccines, Autism and Chronic Inflammation: The New Epidemic. The Autism File2009. 73 Ruscio M. Mast Cell Activation Part 2 with Dr. Lawrence Afrin. April 2018. 74 CDC. Recommended Immunization Schedule for Children and Adolescents Aged 18 Years or Younger, United States, 2018. Feb. 6, 2017. 75 CDC. Vaccine Excipient & Media Summary. March 2018. 76 Offit PA, Hackett CJ. Addressing Parents' Concerns: Do Vaccines Cause Allergy or Autoimmune Diseases? Pediatrics 2003; 111(3).
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Leaving a lucrative career as a nephrologist (kidney doctor), Dr. Suzanne Humphries is now free to actually help cure people. In this autobiography she explains why good doctors are constrained within the current corrupt medical system from practicing real, ethical medicine. FREE Shipping Available! Order here.
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Medical Doctors Opposed to Forced Vaccinations – Should Their Views be Silenced?
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eBook – Available for immediate download.
One of the biggest myths being propagated in the compliant mainstream media today is that doctors are either pro-vaccine or anti-vaccine, and that the anti-vaccine doctors are all “quacks.”
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The two most extreme positions are those doctors who are 100% against vaccines and do not administer them at all, and those doctors that believe that ALL vaccines are safe and effective for ALL people, ALL the time, by force if necessary.
Very few doctors fall into either of these two extremist positions, and yet it is the extreme pro-vaccine position that is presented by the U.S. Government and mainstream media as being the dominant position of the medical field.
In between these two extreme views, however, is where the vast majority of doctors practicing today would probably categorize their position. Many doctors who consider themselves “pro-vaccine,” for example, do not believe that every single vaccine is appropriate for every single individual.
Many doctors recommend a “delayed” vaccine schedule for some patients, and not always the recommended one-size-fits-all CDC childhood schedule. Other doctors choose to recommend vaccines based on the actual science and merit of each vaccine, recommending some, while determining that others are not worth the risk for children, such as the suspect seasonal flu shot.
These doctors who do not hold extreme positions would be opposed to government-mandated vaccinations and the removal of all parental exemptions.
In this eBook, I am going to summarize the many doctors today who do not take the most extremist pro-vaccine position, which is probably not held by very many doctors at all, in spite of what the pharmaceutical industry, the federal government, and the mainstream media would like the public to believe.
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Dr. Andrew Moulden: Every Vaccine Produces Harm
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eBook – Available for immediate download.
Canadian physician Dr. Andrew Moulden provided clear scientific evidence to prove that every dose of vaccine given to a child or an adult produces harm. The truth that he uncovered was rejected by the conventional medical system and the pharmaceutical industry. Nevertheless, his warning and his message to America remains as a solid legacy of the man who stood up against big pharma and their program to vaccinate every person on the Earth.
Dr. Moulden died unexpectedly in November of 2013 at age 49.
Because of the strong opposition from big pharma concerning Dr. Moulden's research, we became concerned that the name of this brilliant researcher and his life's work had nearly been deleted from the internet. His reputation was being disparaged, and his message of warning and hope was being distorted and buried without a tombstone. This book summarizes his teaching and is a must-read for everyone who wants to learn the “other-side” of the vaccine debate that the mainstream media routinely censors.
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lopezdorothy70-blog · 6 years ago
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Are Vaccines Linked to Increase in Mast Cell Disease and Allergies?
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Mast Cell Disease and Vaccination: Is There Increased Risk?
by Barbara Loe Fisher and Carolyn Hendler The Vaccine Reaction
Do you or does someone you know have severe symptoms of itching, rashes, flushing, stomach or other body pain, frequent diarrhea, nausea, fatigue, brain fog, headache and severe allergies to certain foods, medications or insect stings that may include fainting episodes or anaphylaxis?
Although it has been classified as a rare immune system disorder, there are indications that Mast Cell Activation Syndrome (MCAS) may be more prevalent than previously thought and people can suffer for years without being correctly diagnosed.1
With severe allergies and chronic inflammatory diseases increasing in populations around the world, scientists are investigating the association between mast cell dysregulation and various brain and immune system disorders ranging from asthma, inflammatory bowel disease and chronic fatigue syndrome to ADHD, depression, autism and cancer.2 3 4 5
What are Mast Cells?
Mast cells are often described as the body's sentinels because they modulate and orchestrate the immune response and play a critical role in innate and adaptive immunity, as well as maintaining homeostasis in the body.6 7
Mast cells and basophils are types of white blood cells (granulocytes) that are made in the bone marrow. While basophils circulate in the blood, mast cells reside in tissues, primarily connective and mucosal tissues near blood vessels and nerves of the skin, gastrointestinal, respiratory and genitourinary tracts, and the brain.8 9
Mast cells and basophils are part of the body's first line of defense when responding to injury or foreign antigens, such as pathogenic bacteria, viruses, parasites, protozoa, fungi and toxins.10 
During the immune system's normal protective response to a perceived threat, mast cells can release over 200 potent pro-inflammatory mediators within seconds of activation, including histamine (amino acid product), heparin (anti-coagulant), tryptase (enzyme) and cytokines (cell signaling protein molecules).11 12
The activation of this normal protective inflammatory response to internal or external stress increases blood flow to the site of the infection or wound to aid in healing. Acute inflammatory responses are often accompanied by the four classic signs of redness, heat, swelling and pain, which eventually disappear as cells regenerate and inflammation resolves during the healing process.13
However, allergic inflammatory responses are also provoked by mast cell activation.14
What is Mast Cell Disease and MCAS?
Mast cell activation is common and helps combat threats to our health. However, when a dysregulated immune system overproduces mast cells or when mast cell activation is out of proportion to the perceived internal or external threat, it can compromise our health.
The most serious of mast cell activation diseases (MCAD) is systemic mastocytosis, which can develop when genetically altered mast cells infiltrate and accumulate in large numbers in major organ systems, such as the skin, liver and intestines.15 16
A rare form of MCAD is aggressive systemic mastocytosis, usually caused by somatic mutations in the KIT gene, which progresses rapidly and causes organ damage and failure.17
An even rarer form of mast cell disease is mast cell leukemia and mast cell sarcoma.18
Mast Cell Activation Syndrome (MCAS) is a common variation of mast cell disease and can be more or less severe depending upon epigenetic, environmental, lifestyle and other host factors. MCAS occurs when a normal amount of mast cells inappropriately and chronically release histamine and other pro-inflammatory mediators that can lead to persistent inflammation in one or more parts of the body.
Over time, chronic inflammation can damage cells if inflammation cannot be resolved and every organ in the body can be affected.19
Systemic mastocytosis is estimated to affect 1 in 10,000 people. However, the prevalence of MCAS is not known and some researchers estimate the less serious forms of mast cell dysregulation could affect between 10 and 30 percent of populations.20 21
Symptoms of MCAS
Symptoms of MCAS can wax and wane and often various symptoms start in early childhood, although people generally do not get diagnosed for decades after symptoms appear. The effects of mast cell dysregulation can cause a plethora of diverse symptoms, depending on where the mast cells are activated in the body.
Common symptoms of MCAS can include fatigue; pruritus (severe itching); migraine; frequent nausea and diarrhea; allergic reactions to certain foods, medications, chemicals, insect bites and environmental antigens; chronic sinus congestion or dry cough; gastro-esophageal reflux disease (GERD); urinary tract infections; muscle cramping; feeling cold; sweating, especially at night; hair loss; dry eyes; conjunctivitis (pink eye); mouth ulcers (canker sores); dental decay; heart palpitations; inability to concentrate and brain fog; anxiety, depression and insomnia.22 23
When mast cells overeact to a benign substance as if it were a foreign antigen posing a serious threat, symptoms can be life threatening like when a person has an anaphylactic reaction to peanuts.24
Mast cell over-activation and release of large amounts of histamine in the body can be unpredictable, so people with MCAS are at risk of reacting to different foods, alcohol or medications at any time, leaving them uncertain as to when they might have another reaction to something they previously were not aware was a trigger for mast cell activation.25
Many people with MCAS carry an epi-pen with them in case of anaphylaxis.
Diagnosing mast cell disease is difficult and involves blood and urine testing and, less frequently, skin or bone marrow biopsy.26
Most medical doctors in general practice are not well informed about MCAS, while doctors specializing in functional medicine tend to be more familiar with symptoms.
Functional medicine focuses on a personalized, integrative approach to investigating root causes of health problems by analyzing the unique genetic, epigenetic, biochemical, environmental and lifestyle factors that affect an individual's immune function and influence the development of complex chronic diseases.
Because MCAS can present differently in different people, the goal is to identify individual triggers for mast cell activation, including food (such as gluten, dairy, baker's yeast, shellfish, nuts, wheat, corn); or chemicals (alcohol, certain prescription medications, MSG, aspartame, artificial dyes, cleaning products); mold and spores; extreme heat or cold; vigorous exercise; stress or other potential triggers and avoid them.27
There are many unanswered questions about mast cell disease and few prescription drug treatments.28
There is evidence that certain flavonoids (such as Quercetin and Rutin) inhibit histamine release and expression of pro-inflammatory cytokines in mast cells. 29
MCAS and Chronic Disease
Because overactive mast cells release pro-inflammatory mediators causing widespread inflammation in the body, MCAS has been implicated in a number of diseases that involve chronic inflammation and immune dysfunction. There is evidence that MCAS is related to allergic/inflammatory diseases, autoimmune disorders, and autism spectrum disorder.30 31
Health problems that have been associated with MCAS include eczema, psoriasis, and other skin disorders; irritable bowel syndrome; small intestine bowel overgrowth (SIBO); interstitial cystitis (bladder pain syndrome); asthma; migraines; depression; anxiety; ADHD; Obsessive Compulsive Disorder (OCD); autoimmune diseases like rheumatoid arthritis, lupus and Hashimoto's; cancer; peripheral neuropathy, multiple sclerosis; diabetes; obesity; endometriosis; infertility; fibromyalgia and postural orthostatic tachycardia syndrome (POTS), among others.32 33 34
Symptoms of Histamine Intolerance
Histamine is a neurotransmitter that facilitates communications between neurons throughout the nervous system. Histamine levels in the body help control the sleep and wake cycle and influence metabolism, thyroid function, reproduction and management of stress, as well as regulate body temperature, maintain fluid balance in the body and other important functions. Histamine can also increase permeability of the blood brain barrier.35
People with histamine intolerance lack sufficient levels of Diame oxidase (DAO), a gut enxyme, and histamine N-methyltransferase (HNMT), a liver enzyme, which break down and detoxify histamine in foods, medications or alcohol. When these enzymes fail to do their job, high levels of histamine circulate in the blood and cause histamine intoxication.36
Eating histamine-rich foods, drinking alcohol or taking prescription drugs that release histamine and or inhibit DAO or HNMT enzyme activity can cause high histamine levels and symptoms like diarrhea, headache, sinus congestion, heart palpitations, itching and flushing, low blood pressure and many other symptoms.
The symptoms of histamine intolerance and MCAS are similar and a person can have either histamine intolerance of MCAS or both. The main difference between the two is that histamine intolerance involves the triggering of high levels of histamine in the blood that cannot be efficiently detoxified, while MCAS involves dysregulated mast cells releasing not only histamine but multiple inflammatory and other types of mediators in tissues of the body.37
There is some evidence for genetic predisposition to histamine intolerance. Like MCAS, histamine intolerance can be hard to diagnose even with blood and urine tests. Treatment for histamine intolerance focuses on avoiding histamine rich foods and alcohol or medications that block DAO or HNMT enzyme activity.
Some people with histamine intolerance take DAO supplements to help the body break down histamine or take anti-histamines to control levels of histamine in the blood.38
MCAS and Autism Spectrum Disorder
Over the past decade, a number of reports and studies have linked Autism Spectrum Disorder (ASD) with immune dysregulation and chronic inflammation in the body, including in the brain.39 40 41
There is evidence that mast cell dysregulation is associated with Autism Spectrum Disorder (ASD).42 43
Some researchers have suggested that the relationship between immune response and brain function may be negatively affected when toxins cross the blood brain barrier during a critical point in neural development, causing neurotoxicity and immune dysregulation that disrupts the natural neuron pruning process and contributes to the development of autism spectrum disorders. 44
If the immune system is dysregulated, it can affect the formation and necessary removal of physical connections between neurons that is critical to maintaining healthy brain cell function.45
ASD children have a higher rate of allergies (30%) compared to neurotypical children (2.5%).
Tufts University Professor Theodore Theoharides, PhD, MD, who has conducted extensive research into mast cell disorders, has published a series of studies on the association between MCAS and autism. The evidence he has provided suggests that overactive mast cells in the brain and gut triggered by non-allergic stimulus can lead to brain inflammation and chronic brain dysfunction with symptoms diagnosed as autism.
Evidence that mast cells play a role in ASD is also supported by the fact that the hypothalamus, which regulates behavior and language, houses the majority of mast cells in the brain and people with ASD often have problems associated with language and behavior.46
What Are Co-Factors for Developing MCAS?
Currently, MCAS is not considered to be a genetically inherited disease but there is evidence for epigenetic predisposition to development of MCAS as it tends to run in families, albeit with varying degrees of severity and presentations in individuals within the same family.47
Perinatal stress, environmental exposures, DNA methylation, somatic genetic mutations and interactions between microbiota and mast cells have been proposed as contributing co-factors.48 49 50
According to University of Minnesota Professor Lawrence Afrin, MD, an oncologist and leading mast cell authority, mast cell disease can present with different manifestations and outcomes for each person because every person is unique:
“Conveying a new understanding that all mast cell disease features inappropriate mast cell activation, the new top level mast cell activation disease (MCAD) encompasses various types of rare mastocytosis and likely prevalent mast cell activation syndrome (MCAS).
The apparent uniqueness in each patient with MCAD of constitutively activating mutational patterns in KIT and other mast cell regulatory elements likely is the principal driver of not only the specific clinical presentation, and therapeutic response profile, in each patient but also the great heterogeneity across this population.”51 
Inflammation and Vaccination
When the immune system repeatedly mounts an inappropriate acute inflammatory response to antigens or non-allergic substances, it can lead to unwanted chronic inflammation in the body that is common to a number of immune and neuroimmune system disorders.52 53
Vaccination stimulates an inflammatory immune response that promotes production of antibodies and the acquisition of artificial active immunity.54
However, unlike naturally acquired immunity that involves a normal inflammatory response producing both innate (cellular) and humoral (adaptive) immunity, most vaccines manipulate the immune system in way that only stimulates production of vaccine strain antibodies and humoral immunity.55
Because vaccine acquired artificial immunity is temporary, many vaccines contain adjuvants, such as aluminum or squalene, to stimulate a strong inflammatory response in the body, which involves mast cell activation.56
There is mounting scientific evidence that when individuals cannot tolerate hyper-stimulation of the immune system, the atypical inflammatory response to vaccination can remain unresolved, become chronic, and lead to allergy and autoimmunity.57
Vaccines contain many ingredients, including chemicals, virus like protein particles and heavy metals, such as aluminum adjuvants and mercury (Thimerosal) preservatives, as well as other substances that can cause inflammation.58 59
Mercury can activate and destabilize mast cells,60 61 which disrupts the blood brain barrier and makes it easier for mercury to enter the brain where it can remain for long periods of time.62
Even a low concentration of mercury has been shown to activate mast cell mediators in the brain. Scientists have demonstrated that Thimerosal-derived ethylmercury is a mitochondrial toxin and may damage mitochondrial DNA.63
Polysorbate 80 is a chemical emulsifier added to some vaccines. Polysorbate 80 has the ability to help deliver substances across the protective blood brain barrier and into the brain.64
When toxins enter the brain, mast cells are activated and cause inflammation.65
Polysorbate 80 has also been shown to increase histamine levels in animal studies.66
The first vaccine found to cause acute and chronic brain inflammation (acute and chronic encephalopathy) and permanent brain dysfunction was smallpox vaccine created by Edward Jenner in 1796.67
The first vaccine found to cause acute and chronic encephalopathy with permanent brain dysfunction that ranged from learning disabilities and behavior disorders to profound mental retardation was whole cell pertussis vaccine licensed in 1915 and combined in 1949 with diphtheria and tetanus vaccine to create DPT vaccine.68 69
Whole cell pertussis vaccine ingredients include pertussis toxin, endotoxin, aluminum and mercury.70
Cases of pertussis vaccine-related autism were first described in the book DPT: A Shot in the Dark published in 1985.71 72
Is Mast Cell Disease a Risk Factor for Vaccine Reactions?
Mast cells play an important part in keeping the body healthy, but when they malfunction, can cause system wide chronic inflammation in the body that interferes with quality of life or can even cause death.
Dr. Afrin recently related the story of a patient, “who in the first year of his life had been perfectly normal and then, within hours of his first DTP vaccine at age one, developed into just a terrible multi-system inflammatory mess, including essentially acute onset autism.” When he was 20 years old, biopsies tested positive for mast cells. He was subsequently treated for MCAS with remarkable improvement.73
Most babies in the U.S. are being given 25 doses of nine different vaccines (or more) by their first birthday and can receive eight or more vaccines simultaneously.74
As mentioned previously, there are ingredients in vaccines that provoke inflammatory responses in the body that involve mast cell activation.75
Although for the past several decades, most pediatricians and public health officials have rejected the possibility of a relationship between vaccination and the development of allergic and autoimmune disorders,76 the apparent increase in mast cell dysregulation in highly vaccinated populations deserves more in-depth investigation.
The two outstanding questions are:
Does repeated atypical manipulation of the immune system with multiple vaccines in early life trigger MCAS or development of histamine intolerance in genetically or epigenetically predisposed individuals?
Are individuals with undiagnosed MCAS or histamine intolerance at greater risk for suffering vaccine reactions, particularly if they have a personal or family history of allergy or autoimmunity?
There is urgent need for more basic science research into how and why MCAS and histamine intolerance occurs and whether vaccination is a co-factor in increasing individual risks for mast cell dysregulation.
Read the full article at TheVaccineReaction.org.
Comment on this article at VaccineImpact.com.
References:
1 Jennings S, Russell N et al. The Mastocytosis Society Survey on Mast Cell Disorders: Patient Experiences and Perceptions. J Allergy Immunol Pract 2014; 1(1): 70-76. 2 Afrin LB. Mast cell activation and the modern epidemic of chronic inflammatory disease.Translational Research 2016; 174: 33-59. 3 Galli Sj, Tsai M, Piliponsky AM. The development of allergic inflammation. Nature 2008; 454(7203): 445-454. 4 Theoharides TC. Autism Spectrum Disorders and Mastocytosis. Int J Immunopath Pharmacol2009; 22(4): 859-865. 5 Theoharides T, Conti P. Mast cells: the Jekyl and Hyde of tumor growth. Trends in Immunology 2004; 25(5). 6 Zayas E, deSilva M et al. Mast Cell Function: A New Vision of an Old Cell. J Histochem Cytochem 2014; 62(1). 7 Whittemore M, Dileepan K, Wood J. Mast Cell: A Multi-Functional Master Cell. Front Immunol2016; 6:620. 8 University of Rochester Medical Center. White Blood Cells. Health Encyclopedia. 9 Nautiyal KM, Riberio AC et al. Brain mast cells link the immune system to anxiety-like behaviors. Proc Nat Acad Sci 2008; 105(46). 10 Urb M, Sheppard D. The Role of Mast Cells in the Defense Against Pathogens. PLoS Pathog Apr. 26, 2012. 11 Gilfillan S, Austin SJ, Metcalfe DD. Mast Cell Biology: Introduction and Overview. Adv Exp Med Biol 2011; 716: 2-12. 12 Amin K. The Role of Mast Cells in Allergic Inflammation. Respiratory Medicine 2012; 106: 9-14. 13 Encyclopedia Britannica. Inflammation (Pathology). Feb. 28, 2019. 14 Amin K. The Role of Mast Cells in Allergic Inflammation. Respiratory Medicine 2012; 106: 9-14. 15 Metcalfe DD. Mast cells and mastocytosis. Blood 2008; 112(4): 946-956. 16 The Mastocytosis Society. Mast Cell Diseases: Overview, Diagnosis, Definition and Classification. 2018. 17 Molderings GJ, Brettner S et al. Mast Cell Activation Disease: A Concise Practical Guide for Diagnostic Workup and Therapeutic Options. J Hematol Oncol 2011; 4(10). 18 National Institutes of Health. Systemic Mastocytosis. Genetic and Rare Diseases Information Center 2018. 19 Hamilton MJ, Hornick JL et al. Mast cell activation syndrome: A newly recognized disorder with systemic clinical manifestations. J Clin Allergy Immunol 2011; 128(1). 20 Akin C. Mast cell activation syndromes. J Allergy Clin Immunol 2017; 140(2): 349-355. 21 Molderings, GJ, Zienkiewicz T, Risk of solid cancer in patients with mast cell activation syndrome: results from Germany and USA. F1000 Res 2017; 6: 1889. 22 Afrin L. Presentation, Diagnosis and Management of Mast Cell Activation Syndrome. Nova Science Publishers 2013. 23 Hoffman B. Mast Cell Activation Syndrome and Histamine: When Your Immune System Runs Rampant. Hoffman Centre for Integrative and Functional Medicine Nov. 8, 2017. 24 Santos AF, Couto-Francisco N et al. A novel human mast cell activation test for peanut allergy.J Allergy Clin Immunol May 3, 2018. 25 Maintz L, Novak N. Histamine and histamine intolerance. Am J Clin Nutr 2007; 85(5): 1185-1196. 26 National Institutes of Health. Systemic Mastocytosis. Genetic and Rare Diseases Information Center 2018. 27 MastCellDisease. Mast Cell Triggers: What Are the Most Common Triggers? Dec. 12, 2017. 28 Molderings GJ, Haenisch B et al. Pharmacologic treatment options for mast cell activation disease. Naunyn-Schmiedeberg's Archive of Pharmacology 2016; 389(7): 671-694. 29 Hyo-Hyuan P, Lee S et al. Flavanoids inhibit histamine release and expression of proinflammatory cytokines in mast cells. Arch Pharmacol Res 2008; 31:1303. 30 Zayas E, deSilva M et al. Mast Cell Function: A New Vision of an Old Cell. J Histochem Cytochem 2014; 62(1): 698-738. 31 Theoharides TC, Tsilioni I et al. Atopic Diseases and Inflammation of the Brain in the Pathogenesis of Autism Spectrum Disorders. Trans Psychiatry 2016; 6(6). 32 Theoharides TC, Konstantinos-Dionysios A et al. Mast Cells and Inflammation. Biochimica Biophysica Acta 2012; 1822(1): 21-33. 33 Conti P, Caraffa AL. Mast cell, pro-inflammatory and anti-inflammatory: Jekyll and Hyde, the story continues. Journal of Biological Regulators and Homeostatic Agents 2017; 31(2): 263-267. 34 Weinstock LB, Brook JB et al. Successful treatment of postural orthostatic tachycardia and mast cell activation syndromes using naltrexone, immunoglobulin and antibiotic treatment. BMJ Case Reports Jan. 11, 2018. 35 Pizano J. The many effects of histamine. Integrative Therapeutics Mar. 1, 2016. 36 Kovacova-Hanuskova E, Buday T et al. Histamine, histamine intoxication and intolerance.Allergologia et Immunopathologia 2015; 43: 498-506. 37 Hoffman B. Is Your Histamine Intolerance Actually Mast Cell Activation Syndrome? Hoffman Centre for Integrative and Functional Medicine Dec. 5, 2017. 38 Manzotti G, Breda D et al. Serum diamine oxidase activity in patients with histamine intolerance. Int J Immunopathol Pharmacol 2016; 29(1): 105-111. 39 Tonhajzerova I, Ondrejka I et al. (2015) Inflammatory Activity in Autism Spectrum Disorder. In: Pokorski M. (eds) Respiratory Health. Advances in Experimental Medicine and Biology2015. 40 Rossignol DA, Frye RE. A review of research trends in physiologic abnormalities in autism spectrum disorders: immune dysregulation, inflammation, oxidative stress, mitochondrial dysfunction and environmental toxicant exposures. Mol Psychiatry 2012; 17(4): 389-401. 41 Theoharides TC, Asadi S, Patel AB. Focal brain inflammation and autism. J Neuroinflamm2013; 10: 46. 42 Theoharides TC, Doyle BS. Autism, Gut-Blood-Brain Barriers and Mast Cells. J Clin Psychopharmacol 2008; 28(5): 479-483. 43 Theoharides TC, Stewart JM et al. Mast cells, brain inflammation and autism. Eur J Pharmacol 2016; 778: 96-102. 44 Jacome MCI, Chacon LMM et al. Peripheral Inflammatory Markers Contributing to Comorbidities in Autism. Behav Sci (Basel) 2016; 6(4). 45 University of Rochester Medical Center. The Brain's Gardeners: Immune Cells “Prune” Connections Between Neurons. Mar. 7, 2016. 46 Theoharides TC. Is a Subtype of Autism an Allergy of the Brain? Clin Thera 2013; 35(5): 584-591. 47 Molderings GJ, Haenisch B et al. Familial Occurrence of Systemic Mast Cell Activation Disease. PLOS One Sept. 13, 2013 48 Monticelli S, Leoni C. Epigenetic and transcriptional control of mast cell responses. F1000 Research Nov. 29, 2017. 49 U.S. National Library of Medicine. What Is A Gene Mutations and How Do Mutations Occur?July 3, 2018. 50 Afrin LB, Khouruts A. Mast Cell Activation Disease and Microbiotic Interactions. Clin Thera2015; 37(5)): 941-953. 51 Ibid. 52 Walker ME, Hatfield JK, Brown MA. New insights into the role of mast cells in autoimmunity: Evidence for a common mechanism of action? Biochimica et Biophysica Acta 2012; 1822(1): 57-65. 53 Gibney SM, Drexhage HA. Evidence for a Dysregulated Immune System in the Etiology of Psychiatric Disorders. J Neuroimmune Pharmacol 2013; 8(4): 900-920. 54 Ghaffar A. Immunization. University of South Carolina School of Medicine. Nov. 8, 2017. 55 Rydyznski CE, Waggoner SN. Boosting vaccine efficacy the natural (killer) way. Trends Immunol 2015; 36(9): 536-548. 56 deVeer M. New Development in Vaccine Research – Unveiling the Secret of Vaccine Adjuvants. Discovery Medicine Sept. 15, 2011. 57 Vera-Lastra, Medina G et al. Autoimmune/inflammatory syndrome induced by adjuvants (Shoenfeld's syndrome): clinical and immunological spectrum.  Expert Review Clinical Immunology  2013; 9(4): 361-373. 58 Fisher BL. Are Vaccine Ingredients Safe? NVIC Jan. 26, 2018. 59 Singh B. Vaccine Ingredient Toxicity – Unraveling the Intiation of Oxidative Damage to Myelin and Role of Mast Cells, Microglia and Schwan Cells in Neurogenic Inflammation and Inhibition of Remyelination. Research Gate  Feb. 10, 2017. 60 Kempuraj D, Asadi S et al. Mercury induces inflammatory mediator release from mast cells.Journal of Neuroinflammation 2010; 7:20. 61 Bent S, Gottsch C et al. The effects of heavy metal ions (CD2+, Hg2+, Pb2+, Bi3+) on histamine release from human adenoidal and cutaneous mast cells. Agents and Actions 1992; 36 (Suppl 2). 62 Cariccio VL, Sama A et al. Mercury Involvement in Neuronal Damage and Neurodegenerative Diseases. Biol Trace Element Res May 18, 2018. 63 Sharpe AM, Livingston AD et al. Thimerosal-Derived Ethylmercury is a Mitochondrial Toxin in Human Astrocytes: Possible Role in Fenton Chemistry in the Oxidation and Breakage of mtDNA. J Toxicol June 16, 2012. 64 Koffie RM, Farrar CT et al. Nanoparticles enhance brain delivery of blood-brain barrier-impermeable probes for in vivo optical and magnetic resonance imaging. Proc Natl Acad Sci2011; 108 (46): 18837-18842. 65 Parpia R. Polysorbate 80: A Risky Vaccine Ingredient. The Vaccine Reaction Jan. 7, 2016. 66 Masini E, Planchenault J et al. Histamine releasing properties of Polysorbate 80 in vitro and in vivo: correlation with its hypotensive action in the dog. Agents Action 1985; 16(6): 470-477. 67 Miravelle A, Roos KL. Encephalitis Complicating Smallpox Vaccination. JAMA Neurology2003; 60(7): 925-928. 68 Institute of Medicine Vaccine Safety Committee. Adverse Effects of Pertussis and Rubella Vaccines. Chapter 4: Encephalopathy (pp. 86-88). Washington, DC. The National Academies Press 1991. 69 Institute of Medicine Committee to Study New Research on Vaccines. DPT Vaccine and Chronic Nervous System Dysfunction: A New Analysis. Executive Summary (pp.1-2) Washington, D.C. The National Academies Press 1994. 70 WHO. Recommendations for whole cell pertussis vaccine. WHO Technical Report Series No. 941 2007. 71 Coulter HL, Fisher BL. DPT: A Shot in the Dark. Harcourt Brace Jovanovich 1985. 72 Fisher BL. Vaccines, Autism and Chronic Inflammation: The New Epidemic. The Autism File2009. 73 Ruscio M. Mast Cell Activation Part 2 with Dr. Lawrence Afrin. April 2018. 74 CDC. Recommended Immunization Schedule for Children and Adolescents Aged 18 Years or Younger, United States, 2018. Feb. 6, 2017. 75 CDC. Vaccine Excipient & Media Summary. March 2018. 76 Offit PA, Hackett CJ. Addressing Parents' Concerns: Do Vaccines Cause Allergy or Autoimmune Diseases? Pediatrics 2003; 111(3).
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Leaving a lucrative career as a nephrologist (kidney doctor), Dr. Suzanne Humphries is now free to actually help cure people. In this autobiography she explains why good doctors are constrained within the current corrupt medical system from practicing real, ethical medicine. FREE Shipping Available! Order here.
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Medical Doctors Opposed to Forced Vaccinations – Should Their Views be Silenced?
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eBook – Available for immediate download.
One of the biggest myths being propagated in the compliant mainstream media today is that doctors are either pro-vaccine or anti-vaccine, and that the anti-vaccine doctors are all “quacks.”
However, nothing could be further from the truth in the vaccine debate. Doctors are not unified at all on their positions regarding “the science” of vaccines, nor are they unified in the position of removing informed consent to a medical procedure like vaccines.
The two most extreme positions are those doctors who are 100% against vaccines and do not administer them at all, and those doctors that believe that ALL vaccines are safe and effective for ALL people, ALL the time, by force if necessary.
Very few doctors fall into either of these two extremist positions, and yet it is the extreme pro-vaccine position that is presented by the U.S. Government and mainstream media as being the dominant position of the medical field.
In between these two extreme views, however, is where the vast majority of doctors practicing today would probably categorize their position. Many doctors who consider themselves “pro-vaccine,” for example, do not believe that every single vaccine is appropriate for every single individual.
Many doctors recommend a “delayed” vaccine schedule for some patients, and not always the recommended one-size-fits-all CDC childhood schedule. Other doctors choose to recommend vaccines based on the actual science and merit of each vaccine, recommending some, while determining that others are not worth the risk for children, such as the suspect seasonal flu shot.
These doctors who do not hold extreme positions would be opposed to government-mandated vaccinations and the removal of all parental exemptions.
In this eBook, I am going to summarize the many doctors today who do not take the most extremist pro-vaccine position, which is probably not held by very many doctors at all, in spite of what the pharmaceutical industry, the federal government, and the mainstream media would like the public to believe.
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Dr. Andrew Moulden: Every Vaccine Produces Harm
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ketoseportal · 7 years ago
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Wenn die Keto-Grippe nicht aufhören will: Ursache Histamin-Intoleranz?
Leichte Gesundheitsbeschwerden während der Umstellung auf ketogene Ernährung sind normal. Gehen sie aber nicht weg oder werden stärker, kann eine Histamin-Intoleranz die Ursache sein.
Kopfschmerzen, Übelkeit, Muskelkrämpfe, Müdigkeit, Hautprobleme, … Das sind nur einige der Symptome, die in den ersten Tagen nach Umstellung auf Ketose auftreten können. Für gewöhnlich dauert diese „Keto-Grippe“ nur wenige Tage bis maximal zwei Wochen – falls sie überhaupt auftritt. Bei manchen Neu-Ketariern aber hören die Symptome überhaupt nicht auf oder verstärken sich sogar. Falls das bei Dir so ist, könnte es sein, dass Du unter einer Unverträglichkeit für bestimmte Nahrungsmittel leidest: der Histamin-Intoleranz (HIT). Es gibt im Internet zahlreiche Erfahrungsberichte von Ketariern und Low Carbern, die erst durch ihre Ernährungsumstellung auf ketogene Ernährung oder Low Carb herausgefunden haben, dass sie histaminintolerant sind. Wieso ist das so?
  Was ist Histaminintoleranz?
  Bevor wir ins Detail gehen, erst eine Kurzzusammenfassung: HIT ist eine Nahrungsmittelunverträglichkeit, bei der Histamin nur schlecht vertragen wird. Dabei handelt es sich um einen Stoff, der in unterschiedlicher Konzentration in fast allen Lebensmitteln vorkommt. Die Symptome einer HIT sind vielfältig und stimmen teilweise mit denen einer Keto-Grippe überein. Viele der Nahrungsmittel, die bei ketogener Ernährung empfohlen werden, sind besonders reich an Histamin. Daher bekommen Menschen, die nicht wissen, dass sie histaminintolerant sind, fast zwangsläufig Probleme mit dieser Ernährungsform. Was aber nicht heißen muss, dass ketogene Ernährung und HIT grundsätzlich nicht zusammenpassen! Je nach Ausprägung der Intoleranz kann es ausreichen, die ketogene Ernährung durch Weglassen bestimmter Nahrungsmittel anzupassen.
Auf die Anpassung der ketogenen Ernährung an die Besonderheiten der HIT wird detailliert in dem Artikel „Histamin-Intoleranz und ketogene Ernährung“ eingegangen. In diesem Artikel soll es darum gehen, den Ketariern mit Gesundheitsbeschwerden unter Euch Anhaltspunkte dafür zu geben, ob Ihr eventuell histaminintolerant seid. Und die Frage zu klären, was das eigentlich ist – Histamin-Intoleranz. Aber als erstes zu den Symptomen der HIT. Damit Ihr schon mal abschätzen könnt, ob Eure Beschwerden überhaupt zu HIT passen.
  Was sind die Symptome einer Histamin-Intoleranz?
  Die Symptome sind vielfältig (und Ihr hier nachlesen könnt, stimmen mehrere von ihnen mit der Keto-Grippe überein):
Kopfschmerzen, Migräne, Schwindel
Asthma, Husten, andere Atembeschwerden
Juckreiz, Hautrötungen („Rotwerden“), Akne, Ekzeme, Nesselsucht
geschwollene Augen, Halsschmerzen, laufende Nase
prämenstruelle Krämpfe, unregelmäßiger Zyklus
Herzrasen, Herzklopfen, niedriger oder hoher Blutdruck
geschwollene Füße oder Knöchel
Müdigkeit, Erschöpfung
Schlaflosigkeit
Verdauungsprobleme, z.B. Sodbrennen, Übelkeit, Blähungen, Durchfall
Nervosität, depressive Verstimmung, Panikattacken, Verwirrtheit
Anaphylaktischer Schock (bei extrem hohen Mengen von Histamin)
Bei den meisten Menschen treten nur wenige der Symptome auf, andere trifft es schwerer. Sollten bei Dir mehrere dieser Symptome regelmäßig auftreten, besteht die Möglichkeit, dass Du unter einer HIT leidest. Da die genannten Symptome aber auch typisch für viele andere Krankheiten sind, ist die Diagnose einer HIT nicht einfach. In jedem Fall solltest Du einen Arzt aufsuchen. Bevorzugt einen, der der ketogenen Ernährungsweise gegenüber offen eingestellt ist.
  Was ist Histamin überhaupt?
  Histamin ist ein sogenanntes biogenes Amin. Es kommt im tierischen (und damit auch menschlichen) Organismus vor sowie in vielen Pflanzen und Bakterien. Histamin in unserem Körper kann dabei aus zwei Quellen stammen: erstens produziert der Körper es selbst und zweitens wird es über die Nahrung aufgenommen.
Bildung im eigenen Körper
Histamin wird vorwiegend von sogenannten Mastzellen produziert und gespeichert. Diese Zellen spielen eine wichtige Rolle bei der Immunabwehr unseres Körpers. Histamin wird dabei aus der Aminosäure Histidin gebildet. Mastzellen finden sich über den gesamten Körper verteilt im sogenannten interstitiellen Bindegewebe. Vor allem aber im Darm und in den Atemwegen. Weitere Zellen, die Histamin produzieren und speichern, sind zum Beispiel histaminerge Nervenzellen (Nervenzellen, die als Botenstoff Histamin ausschütten), Thrombozyten (weiße Blutplättchen) und neutrophile Granulozyten (weiße Blutkörperchen). Außerdem produzieren manche Darmbakterien Histamin. Dieses wird aber vom gesunden Körper deaktiviert, bevor es den Darm verlassen kann.
Zufuhr von außen
Histamin in Nahrungsmitteln entsteht vor allem durch Verderbnis- und Reifungsprozesse. Daher enthält eine überreife Banane deutlich mehr Histamin als eine noch fast grüne. Wie viel Histamin verschiedene Nahrungsmittel enthalten, ist dabei sehr unterschiedlich. Das von außen aufgenommene Histamin wird vom gesunden Körper schon im Verdauungstrakt abgebaut, so dass es nicht in den restlichen Körper gelangen kann.
  Was ist die Funktion von Histamin?
  Histamin dient als Gewebshormon und Neurotransmitter (=Botenstoff im Nervensystem) und ist von großer Bedeutung für das Immunsystem. Stark vereinfacht lässt sich seine Funktion folgendermaßen zusammenfassen: Histamin ist ein Botenstoff, der im Immunsystem Informationen über Angriffe auf den Körper weiterleitet und dadurch Abwehrreaktionen auslöst. Was Histamin im Detail bewirkt, wird jetzt genauer erläutert:
Wirkmechanismus. Wir erläutern den Wirkmechanismus von Histamin anhand der Mastzellen, da Histamin in diesen Zellen am häufigsten vorkommt. Bei den anderen Zellen, die Histamin enthalten, laufen aber ganz ähnliche Prozesse ab. Eine Mastzelle kann man sich wie jemanden vorstellen, der ein Feuer oder eine andere Gefahr entdeckt und kräftig auf den Alarmknopf haut. Dieser Alarmknopf löst eine Sirene aus, durch die andere Menschen alarmiert werden. Außerdem ist er mit einer Rettungsstelle verbunden, die nun Rettungsmaßnahmen einleitet. Das Sirenengeheul und die Informierung der Rettungsstelle – das ist das Histamin.
Aber wieder zurück zum Körper: Wenn eine Mastzelle durch bestimmte Stoffe stimuliert wird, die eine Gefahr für den Körper darstellen, schüttet sie verschiedene Botenstoffe aus. Unter anderem Histamin. Gefährliche Stoffe können dabei zum Beispiel Krankheitserreger wie Viren und Bakterien sein oder Stoffe, die Entzündungen oder Allergien hervorrufen. Das Histamin befindet sich nun in dem Raum, der die Mastzelle umgibt (=Extrazellulärraum). Dieser ist mit Gewebeflüssigkeit gefüllt. Über diese Flüssigkeit erreicht das Histamin nun benachbarte Zellen, die der Immunabwehr dienen. An diese Zellen kann das Histamin über spezielle Histamin-Rezeptoren andocken. Von diesen sind bisher vier bekannt (H1, H2, H3, H4). Aber Histamin kann auch aktiv in die Zellen hineinbefördert werden. In beiden Fällen übermittelt das Histamin so die Information „Alarm!“ und stößt in der Zelle Prozesse an, die der Gefahrenabwehr dienen. Diese Prozesse lösen die Symptome aus, die für viele Krankheiten und Allergien typisch sind.
Nach einer Weile wird das Histamin wieder abgebaut. Das ist wichtig, weil das Histamin sonst dafür sorgen könnte, dass die Immunreaktionen länger und stärker als nötig ausfallen (z.B. weil ein Histamin-Molekül immer weiter an Zellen andocken könnte; auch dann noch, wenn die Gefahr schon längst vorbei ist). Im Extrazellulärraum ist vor allem das Enzym Diaminoxidase (DAO) für diesen Abbau zuständig. Im Inneren von Zellen wird Histamin durch Histamin-N-Methyltransferase (HNMT) abgebaut.
Jetzt wollen wir uns etwas genauer anschauen, was für Prozesse eigentlich durch Histamin angestoßen werden. Und zwar unterschieden nach Rezeptortyp:
H1:
Gefäßerweiterung bei kleineren Blutgefäßen (-> niedriger Blutdruck, Hautschwellungen und -rötungen, Juckreiz, Migräne, Kopfschmerzen)
Muskelkontraktion in großen Blutgefäßen
Muskelkontraktion in Bronchien (-> Atemwegsbeschwerden, Asthma)
H2:
Verstärkung der Magensäureproduktion (-> Sodbrennen)
Beschleunigung von Darmbewegungen (-> Durchfall)
Beschleunigung des Herzschlags
H3: In Nervenzellen:
Hemmung der Ausschüttung von weiterem Histamin
Regulation der Ausschüttung anderer Neurotransmitter (z.B. Serotonin, Noradrenalin, Dopamin, Glutamin, Cholin)
Symptome: Erbrechen, Schlafstörungen
H4: Immunzellen werden zum Ort der Entzündung/Infektion gelenkt
    Was läuft bei der Histamin-Intoleranz schief?
  Bei der HIT ist der Abbau von Histamin gestört. Genauer: Der Körper produziert nicht genug Enzyme für den Abbau von Histamin. Am häufigsten ist davon das Enzym betroffen, das außerhalb der Körperzellen wirkt, d.h. DAO. Dadurch, dass es nicht genug DAO gibt, reichert sich das Histamin außerhalb der Zellen an. Das heißt, die Zellen, die für die Immunabwehr zuständig sind, werden jetzt außergewöhnlich stark und langandauernd stimuliert. Dadurch fallen die Symptome der Immunabwehr besonders stark aus oder werden überhaupt erst wahrgenommen (oft fallen nämlich die – normalen – Immunreaktionen so schwach aus, dass wir sie kaum oder gar nicht bemerken).
Wäre nur das vom Körper selbst produzierte Histamin betroffen, wäre das ganze halb so schlimm. Denn dieses Histamin wird ja nur ausgeschüttet, wenn der Körper irgendwie von außen angegriffen wird, durch Viren o.ä. Hier kommt jetzt aber das durch die Nahrung konsumierte Histamin ins Spiel. Da sich auch im Verdauungstrakt weniger DAO befindet, kann das aufgenommene Histamin nun den Darm verlassen und ins Blut übergehen. Im Extremfall kommt es dadurch zu einer wahren „Flutung“ des Körpers mit Histamin. Wodurch die Immunabwehr-Zellen massiv stimuliert werden, obwohl eigentlich gar keine Gefahr für den Körper besteht. Entscheidend für die HIT ist also das Histamin, das über die Nahrung aufgenommen wird.
Auch eine Störung des Enzyms, das Histamin innerhalb der Zellen abbaut (HNMT), kann für eine HIT verantwortlich sein. Das ist allerdings deutlich seltener der Fall. Welches Enzym verantwortlich ist, kannst Du auch am zeitlichen Verlauf Deiner Symptome erkennen. Bei DAO-Mangel treten die Symptome sehr plötzlich auf (akute Form). Ein HNMT-Mangel dagegen führt zu einer langsameren Entwicklung der Symptome (chronische Form). Für gewöhnlich treten die Symptome aber innerhalb von zwei Stunden nach einer histaminreichen Mahlzeit ein und dauern normalerweise nicht länger als 24 Stunden.
  Welche Nahrungsmittel sind bei Histamin-Intoleranz zu meiden?
  Problematische Nahrungsmittel lassen sich grob in vier Kategorien einteilen. Dabei fallen viele Nahrungsmittel in mehr als eine Kategorie:
Hat selbst viel Histamin
Bewirkt, dass Histamin ausgeschüttet wird
Blockt Histamin-Abbauer
Konkurriert um Histamin-Abbauer
Hier nochmals im Detail:
1. Hat selbst viel Histamin. Hier gilt grundsätzlich: Fast alle Lebensmittel enthalten zumindest etwas Histamin, aber manche eben besonders viel. Zudem gilt: Je älter ein Lebensmittel ist, desto mehr Histamin enthält es, da Histamin durch Reifungs- und Verwesungsprozesse gebildet wird. Besonders schnell bildet sich Histamin in Fleisch, Fisch und Meeresfrüchten. Nur wenige Stunden bis Tage zwischen Schlachtung bzw. Fang und Verzehr können aus Fleisch und Fisch wahre Histaminbomben machen. Problematisch sind auch alle Lebensmittel, die durch bestimmte Techniken länger haltbar gemacht wurden (z.B. durch Räuchern, Einlegen, Dörren). Hier eine kurze Liste mit weiteren histaminreichen Lebensmitteln (mehr im Artikel „Histamin-Intoleranz und ketogene Ernährung“):
Hartkäse, Schimmelkäse
Sauerkraut
Tomaten (v.a. konzentrierte Tomatensaucen wie Tomatenmark)
Avocado
Spinat
Bier
Rotwein
Essig
manche Pilze (z.B. Pfifferlinge)
manche Nüsse (z.B. Walnüsse)
2. Bewirkt, dass Histamin ausgeschüttet wird. Dies sind sogenannte Histaminliberatoren. Das sind Nahrungsmittel, die selbst nicht unbedingt viel Histamin enthalten, aber dafür sorgen, dass Histamin aus seinen Speicherzellen ausgeschüttet wird. Der bekannteste Liberator ist hier Alkohol. Schokolade, Käse, Hefe, Erdbeeren, Schalentiere, Zitrusfrüchte und bestimmte Lebensmittelzusatzstoffe (z.B. Tartrazin = Farbstoff in Gummibärchen) haben diese Wirkung wohl auch. Das ist aber nicht eindeutig gesichert.
3. Blockt Histamin-Abbauer. Sogenannte DAO-Blocker (auch DAO-Inhibitoren) sind Stoffe, die die Wirkung der DAO hemmen. Am wichtigsten ist hier Alkohol, aber auch verschiedene Lebensmittelzusatzstoffe haben die gleiche Wirkung.
4. Konkurriert um Histamin-Abbauer. Andere biogene Amine konkurrieren mit Histamin um DAO und blockieren diese dadurch. Hier ist vor allem Schokolade zu nennen, ebenso Bananen, Grapefruit, Papaya, Himbeeren und Soja.
Welche Nahrungsmittel tatsächlich Symptome auslösen können, ist individuell sehr unterschiedlich. Manche Menschen mit HIT vertragen bestimmte Nahrungsmittel ohne Probleme, obwohl diese viel Histamin enthalten, während sie andere nicht essen können. Manche Menschen müssen sich bei der Wahl ihrer Nahrungsmittel sehr stark einschränken, weil sie auf sehr vieles mit Symptomen reagieren, andere müssen sich kaum einschränken. Oft ist die Verträglichkeit eines Nahrungsmittels auch eine Frage der Menge. Das heißt, in kleinen Mengen wird es vertragen, in großen dagegen nicht. Was Du essen kannst, was nicht und in welchen Mengen, musst Du mit der Zeit herausfinden, indem Du sehr genau auf die Reaktionen Deines Körpers achtest.
  Weitere Auslöser für HIT-Symptome
  Neben reinen Nahrungsmitteln können auch andere Stoffe Reaktionen auslösen. Dazu gehören:
bestimmte Medikamente (z.B. Opiate und Mittel zur Muskelentspannung)
Nikotin
Stress
Röntgenkontrastmittel
In seltenen Fällen: Hitze, Kälte, Berührungen, Wasser
Wie findest Du heraus, ob Du eine Histamin-Intoleranz hast?
  Die Symptome einer HIT haben viele Übereinstimmungen mit den Symptomen anderer Nahrungsmittel-Intoleranzen, Allergien und Krankheiten. Und wie erwähnt mit einer Keto-Grippe, die viele haben, wenn sie auf eine ketogene Ernährung umsteigen. Daher ist die Diagnose schwierig. Oft kommt es vor, dass sie unerkannt bleibt oder fälschlicherweise getroffen wird. Erschwerend kommt hinzu, dass sich viele Ärzte nicht mit HIT auskennen. Für gewöhnlich wird Dein Arzt folgende zwei bzw. optional auch drei Schritte mit Dir durchführen:
Führen eines Symptomtagebuchs und Differenzialdiagnose: Du notierst alle Nahrungsmittel sowie Medikamente, die Du zu Dir genommen hast. Außerdem schreibst Du alle Symptome auf, die Du an Dir feststellst. Dein Arzt wertet das Tagebuch aus und testet Dich zudem auf Krankheiten und Intoleranzen, die einer HIT ähneln (z.B. Mastzellenaktivierungssyndrom, Mastozytose).
Ausschlussdiät (auch Eliminationsdiät): Dann verzichtest Du etwa zwei bis vier Wochen auf alle problematischen Nahrungsmittel. Gehen die Symptome weg, ist die Wahrscheinlichkeit groß, dass Du eine HIT hast.
Provokationstest (optional): Im Anschluss an die Ausschlussdiät nimmst Du Flüssigkeiten oder Kapseln mit einer hohen Dosis Histamin ein. Falls Symptome auftreten, spricht dies für HIT. Allerdings kann es auch passieren, dass trotz HIT keine Symptome auftreten. Was gegen den Provokationstest spricht, ist, dass sehr hohe Mengen von Histamin im Extremfall einen anaphylaktischen Schock auslösen können.
Nicht mehr empfohlen werden Urin-, Stuhl- und Blutuntersuchungen, da diese Methoden wenig zuverlässig sind. Das gleiche gilt auch für Dünndarmbiopsien.
  Was sind die Ursachen von Histamin-Intoleranz und wer ist betroffen?
  HIT ist für gewöhnlich nicht angeboren, sondern wird im Laufe des Lebens erworben. Schätzungsweise 1% aller Menschen sind betroffen. Die meisten Fälle bleiben unentdeckt, so dass die wahre Zahl höher liegt. Zudem sind die meisten Betroffenen Frauen. Das könnte aber auch einfach daran liegen, dass Frauen besser auf ihren Körper hören und schneller zum Arzt gehen, so dass eine HIT bei ihnen eher diagnostiziert wird. Zu den Risikofaktoren für eine HIT gehören:
Schäden am und Störungen des Magen-Darm-Systems (z.B. Morbus Crohn, Zöliakie, Leaky Gut Syndrom, Colitis ulcerosa, Schäden aufgrund von Chemotherapie)
Mangel an Nährstoffen, die wichtig sind für Aufbau und Funktion von DAO (Vitamin C, Vitamin B6, Zink, Kupfer)
Einnahme von Medikamenten, die den Histamin-Abbau behindern
Hormonelle Störungen, insbesondere in Bezug auf Östrogen (z.B. durch hormonelle Empfängnisverhütung, Wechseljahre, Pubertät, Hormone in Lebensmitteln)
    Was tun bei Histamin-Intoleranz?
  Die besten Maßnahmen sind:
Ernährungsumstellung: Lass problematische Nahrungsmittel weg. Auch ganz wichtig: frisch kochen!
Einnahme von DAO: Du kannst vor dem Essen spezielle Kapseln einnehmen, die DAO enthalten. Das macht vor allem dann Sinn, wenn Du irgendwo eingeladen bist und etwas histaminreiches vorgesetzt bekommst. Oder wenn Du einfach mal wieder Dein altes, leider histaminhaltiges Lieblingsgericht essen willst. Allerdings sollte man diese Kapseln nicht zu oft nehmen, da sonst der Körper seine eigene DAO-Produktion noch weiter herunterfährt. Außerdem sind die Kapseln recht teuer (100 Kapseln kosten etwas über 50 Euro).
Einnahme von Antihistaminika: Antihistaminika blockieren die Histamin-Rezeptoren, so dass Histamin nicht wirksam werden kann. Nachteile: Sie sind oft mit Nebenwirkungen verbunden (z.B. Müdigkeit und Schwindel). Allerdings fallen die Nebenwirkungen neuerer Antihistaminika geringer aus. Zudem wirken Antihistaminika nicht bei Symptomen des Magen-Darm-Trakts.
Nahrungsergänzungsmittel nehmen: Vitamin C, Vitamin B6, Zink und Kupfer unterstützen Aufbau und Funktion von DAO.
Konsequentes Weglassen aller problematischen Nahrungsmittel über einen längeren Zeitraum: über ca. 2-4 Wochen, wie bei der Ausschlussdiät. Hierdurch wird überschüssiges Histamin aus dem Körper, insbesondere dem Darm, entfernt. Das geht oft mit einer Verbesserung der Darmflora einher. Dadurch kann DAO wieder besser produziert werden. Betroffene können nach einer solchen Phase histaminhaltige Nahrungsmittel oft wieder etwas besser vertragen. Allerdings sollte man nicht übermütig werden und sich im Großen und Ganzen weiterhin an die Ernährungsempfehlungen bei HIT halten.
Histamin-Intoleranz und ketogene Ernährung
  Zurück zur ketogenen Ernährung. Diese umfasst viele Nahrungsmittel, die histaminreich sind (z.B. Erdnussöl, Walnussöl, Blauschimmelkäse, Eier, Salami, Joghurt, Krustentiere, Meeresfrüchte, rotes Fleisch und vieles mehr). Weshalb sich natürlich die Frage stellt: Ist ketogene Ernährung überhaupt bei HIT geeignet? Wissenschaftlich untersucht wurde diese Frage scheinbar noch nicht, aber Erfahrungsberichte im Internet legen die Vermutung nahe, dass es geht. Schließlich erlaubt ketogene Ernährung auch jede Menge Nahrungsmittel, die (im frischen Zustand!) histaminarm sind und durch die sich histaminreichere Nahrungsmittel prinzipiell ersetzen lassen.
Ob ketogene Ernährung geeignet ist, dürfte aber auch von dem Schweregrad der HIT abhängen. Wenn jemand in seiner Auswahl von Nahrungsmitteln ganz besonders stark eingeschränkt ist, könnte es schwer für ihn werden, genug Fettquellen zu finden und sich gleichzeitig abwechslungsreich zu ernähren. In jedem Fall empfehlen wir jedem HITler die Absprache mit einem Arzt, bevor er sich für eine ketogene Lebensweise entscheidet bzw. dafür, sie fortzusetzen. Eine ausführlichere Darstellung zur ketogenen Ernährung bei HIT findet sich in dem Artikel „Histamin-Intoleranz und ketogene Ernährung“.
  Karolin Haegert
  Reviews und Infoseiten zu HIT:
  Histamine and histamine intolerance, 2007, L. Maintz and N. Novak, The American Journal of Clinical Nutrition, vol. 85, no. 5, pp. 1185-1196
German guideline for the management of adverse reactions to ingested histamine, 2017, I. Reese et al., Allergo Journal International, vol. 26, no. 2, pp. 72-79
Histamine, histamine intoxication and intolerance, 2015, E. Kovacova-Hanuskova, T. Buday, S. Gavliakova, J. Plevkova, Allergologia et Immunopathologia, vol. 43, no. 5, pp. 498-506
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Erfahrungsberichte zu Histamin Intoleranz und ketogener Ernährung:
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Der Beitrag Wenn die Keto-Grippe nicht aufhören will: Ursache Histamin-Intoleranz? erschien zuerst auf Ketoseportal.
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Probiotics: A Guide For Those With Food Sensitivities
Probiotics are valuable tools in helping to balance the bacterial communities found in our digestive system. Many chronic health conditions are slowly having their roots traced back this balance. Gut bacteria have been shown capable of physically altering the composition of our brain, influencing emotions, and have been connected to chronic health conditions such as Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). This systemic connection between gut bacteria and health has led many to use probiotic supplements. Some of the best probiotics will affect many people differently and, in some cases, those heralded as most-beneficial may actually make things worse. This article discusses some important considerations to make before deciding whether probiotics may offer you benefit, which types may be most-beneficial and why.
D-Lactic Acid vs. L-Lactic Acid
Lactic acid is a compound produced naturally by the human body and is used in many processes such as energy production. This compound is found in nature in one of two isomer forms; D-Lactic Acid or L-Lactic acid. Both of these variations are found in the human body, but only L-Lactic acid is actually produced by the body naturally. D-Lactic acid is produced by many difference types of bacteria, and is considered an accurate biomarker for bacterial overgrowth when found in excess. Much of the data we have for bacteria and lactic acid levels produced by them come from the study of food preservation. Eggs, for example, are thought to be past their shelf life when 200mg/kg of L-Lactic acid is observed [2]. This type of science highlights that bacteria are commonly known to produce types of lactic acid, and that measurements of lactic acid can indicate amount of growth.
Measuring the ratio between types of lactic acid is also a useful indicator to suggest pathogenic bacterial overgrowth. For example, patients suffering from Chronic Fatigue Syndrome have been found to have higher levels of D-Lactic acid in their blood [1]. Recent research has even shown that ME/CFS can be accurately predicted in 82% of cases by analyzing fecal bacteria and serum inflammatory biomarkers. The takeaway here is that a disproportionate increase of certain types of intestinal bacteria is associated with chronic health issues. These types of bacteria are often noted as producing high levels of D-type lactic acid, though many beneficial bacteria also produce it to some degree. This isn’t usually an issue, but can become troublesome when these bacteria outnumber L-Lactic acid producers.
Histamine Intolerance
Another very important consideration to make when selecting a probiotic is the impact it will have on histamine levels. Histamine is a neuroregulatory molecule that our bodies use for a wide array of functions. It plays a role in cognitive function, digestion, and allergic reactions. Our bodies have several types of histamine receptors; H1, H2, H3, and H4. These sites are found in our body where histamine attaches to help facilitate some other process. Histamines are commonly associated with allergies and symptoms such as watery eyes, stuffy nose, and itchy skin. These symptoms are natural reactions to foreign invaders such as pollen or black pepper—but also sometimes become chronic in response to a seemingly-unknown cause. There are several fairly common genetic mutations that can affect your body’s ability to regulate histamine. These may affect the histamine production and removal at any stage during its lifecycle—all ultimately having potential to underlie histamine intolerance. Histamine is produced through the conversion of histidine via the L-Histidine Carboxylase (HDC) enzyme. Other enzymes, Diamine Oxidase (DAO) and Histamine N-methyltransferase (HMT), are responsible for getting rid of histamine. Any issues in the production of HDC, DAO, or HMT could potentially cause disturbances in histamine regulation. There are certain common genetic mutations known to be connected with these issues with DAO activity. Minor alleles for rs2052129, rs2268999, rs10156191 and rs1049742 are associated with lowered DAO activity while rs2071514, rs1049748 and rs2071517 are associated with more robust protective levels [14]. These types of variants strongly influence the production and activity of DAO—and thus histamine—but aren’t enough to predict histamine intolerance alone.
The Bacteria Connection
Certain types of bacteria produce histamine in much higher levels than others. These aren’t necessarily bad bacteria, though they may cause great difficulty for those suffering with histamine intolerance issues. Many of these bacteria are common in consumer probiotics, and include such names as Lactobacillus casei, Lactobacillus bulgaricus, and Lactobacillus rheuteri. Other bacteria such as Lactobacillus Acidophillus are considered to be more histamine-neutral—but still produce some levels of histamine. In the vast majority of multi-strain consumer probiotics, histamine producing, histamine neutral, and histamine reducing bacteria are all found together. This diversity is generally regarded as beneficial and supportive of optimal digestive health. For those with histamine-related issues however, they can cause symptoms to worsen. Adverse reactions to probiotics commonly regarded as beneficial can be a likely signal of histamine imbalance or gut bacteria dysbiosis. A careful examination of which types of probiotic bacteria are low-histamine producers, or even histamine-lowering, may offer viable options for those managing histamine issues.
Probiotic Bacteria Research
The amount of data present for differentiation among probiotic bacteria is sparse. The majority of data comes from food preservation sciences, some from animal studies, and only a small amount from human studies. Many different bacteria strains are present in consumer probiotics that haven’t been well studied under controlled environments. We took a quick survey of the 100 best-selling probiotics on Amazon.com and found nearly 100 unique bacteria types. While such species as Lactobacillus Acidophillus are common among many, other rarities such as Azomonas agilis are found in only a handful. We consider the presence of multiple sources of data important when classifying anything, but especially in classification of probiotic bacteria. For this reason, much consideration found in this article is focused on those most-commonly studied bacteria that were also found among the list of most-common consumer probiotics. Even among individual bacteria species there are variances in how unique strains perform with regards to histamine and lactic acid production. At this point, the following attempt to identify low-histamine and low d-lactic acid producers is really just a best guess.
Beneficial Bacteria
In one study investigating the presence of biogenic amines in cider generated a considerable amount of data related to histamine production. This study investigated the potential of several bacterial strains to produce histamine, tyramine, and putrescine—all markers of food spoilage. Among the data, researchers noted that non-histamine producers included Lactobacillus brevis CECT216 and Lactobacillus plantarum [5]. In another study investigating various biogenic amines produced by lactic acid bacteria, researchers also found Lactobacillus plantarum, Lactococcus lactis, Lactobacillus casei, and Lactobacillus bulgaricus to not produce histamine [6]. Additionally, researchers also found that Klebsiella oxytoca, Citrobacter freundii and Enterobacter cloacae all to produce large amounts of histamine. These bacteria are often found in higher amounts among patients suffering from gut dysbiosis [6].
Lactobacillus Rhamnosus was found to produce small amounts of each, but nearly 400% more L-Lactic acid
One study investigating the ability of Bifidobacterium longum spp. Infantis and Lactobacillus rhamnosus was also able to isolate certain amines produced by each. Bifidobacterium longum subsp. Infantis CECT 7210 was found to produce a near-zero amount of D-lactic acid and no histamine whatsoever. While Lactobacillus Rhamnosus was found to produce small amounts of each, but nearly 400% more L-Lactic acid [7]. This study ultimately concluded that the Bifidobacterium longum subsp. Infantis strain showed strong potential as an antiviral and immunological enhancing therapy. In a previous article on Bifidobacterium and histamine, we discussed a study that found both Bifidobacterium infantis and Bifidobacterium longum to exert histamine-lowering effects in animal studies [8]. This benefit was seen in pretreatment in mice prior to allergen exposure. Researchers found that mice in the test group were seen to not only show lower overall levels of histamine, but to also have a smaller degree of genetic expression associated with histamine reactions.
One study found that several different Lactobacillus plantarum species were able to actually reduce histamines and other biogenic amines found in wine. It was ultimately found that the most beneficial strains of Lactobacillus plantarum in lowering histamine content were, in order of most effect, NDT 03, NDT 16 and NDT 21 [9]. Lactobacillus Rhamnosus GG is a strain of bacteria that has been extensively studied compared to other types. This strain in particular has shown the ability to colonize up within the human GI tract [10]. For anyone trying to establish a stronger presence of beneficial bacteria, this would likely be experienced as a positive aspect. These species-specific clarifications aren’t always made in consumer probiotics, illustrating how different brands may offer different results based on no other merit than ingredient source. In addition to impact probiotics potentially have on lactic acid and histamine levels, there are other considerations to make as well.
Oligosaccharides & Inulin Fibers
Additional ingredients found in probiotics should also be carefully scrutinized. Many probiotics contain pre-biotic ingredients such as Fructooligosaccharides (FOS), Mannanoligosaccharides (MOS), or insoluble fibers meant to help bacteria ferment and colonize. These materials are very effective in providing a food source for probiotic bacteria—but may also nourish any existing harmful bacteria. As an example, consider gut bacteria as a balance. On one side of the scale you have good bacteria—on the other side you have the bad bacteria. If you take prebiotic-containing probiotics, there’s a chance that for every increase you see in good bacteria—you’ll also see an increase in existing bad bacteria. This would help introduce new good bacteria, but not work to counterbalance bad bacteria effectively. This might result in a net-increase of lactic acid or histamine—ultimately worsening your existing condition.
The ability of FOS and MOS type compounds to sustain bacteria is well established and often used in laboratory simulations as well in consumer goods. The assertion we’re making that it could present as a hurdle along the path towards restoring gut-bacteria balance is not well-studied. This notion should only be considered as conversational at best. For otherwise healthy individuals, these types of compounds are beneficial in helping to maintain existing bacterial balances. That’s to say; if you’re happy where you are these compounds will likely work to reinforce your current bacterial profile. For those with a strong presence of dangerous bacteria or low diversity of good bacteria, these are likely to impact them negatively.
High Fiber Fruits & Vegetables
Fibrous fruits and vegetables are often regarded as essential to digestive health. They contain many minerals and vitamins essential to health like magnesium, calcium, and vitamin D. These types of foods have been shown in research to help address several digestive issues such as constipation, traveler’s diarrhea, and irritable bowel syndrome [11].  High fiber diets have also been associated with lower rates of any type of death—referred to as all-cause mortality [12]. High fiber diets have been found to be very beneficial in most circumstances, but for those with bacterial dysbiosis they have the potential to cause great harm.
We enter another area of discussion not supported by current data—though worth consideration. Our digestive tract is host to a yet unknown amount of bacteria, both beneficial and potentially harmful. Much of their primary energy is derived from undigested carbohydrates including celluloses, fruit pectins, gums, oligosaccharides, and sugar alcohols [13]. Foods high in these types of compounds are known to stimulate bacterial fermentation, sometimes as much as 30 grams of bacterial for every 100 grams of fermented carbohydrate! Carbs, sugars, and fiber can all help sustain bacterial growth in our digestive tract. In the presence of favorable bacterial balance such diets will help sustain their presence. It’s likely that such high-fiber diets would help sustain any bacterial balance—even if it were largely comprised of potentially harmful types like  Klebsiella or Citrobacter.
Food Intolerances & Probiotics
Many times those suffering from food intolerances find themselves on woefully-restrictive diets. Giving up carbs, alcohol, sugar and grains seem like huge steps for most. For those suffering from food intolerances these concessions are often only distant memories. Foods like broccoli, carrots, eggs, and especially fruits can wreak all kinds of havoc. One potential explanation is that high fiber diets promote the growth of bad bacteria just as much as they do good bacteria. Such cases are likely found among those with very few types of bacteria, and large proportions of high histamine or D-lactic acid producers. In these cases, many probiotics often cause constipation, acidic stomach, and brain fog. To make this consideration, we’re assuming if fiber can cause good bacteria to grow, it will also cause bad bacteria to grow. Another assumption we’re making is that if you take probiotics and have a bad reaction it may be due to increases in histamine levels or D-lactic acid. Neither of these two notions is well-substantiated by data, but we believe both to be important considerations for those struggling finding an effective probiotic.
The Best Probiotics for Sensitive Individuals
Picking a quality probiotic is a lot of guess work, even when adequately educated. Different strains have been shown to provide dramatically different impacts on levels of histamine and lactic acid. Among the many data sources we’ve cataloged, it seems the best probiotics for sensitive individuals are as follows:
Lactobacillus rhamnosus,
Bifidobacterium infantis
Bifidobacterium longum
There were many bacteria that have been noted as being low-histamine producers, but were still high D-lactic acid producers. Inversely, there are also many bacteria that are noted as being low D-lactic acid producers but high histamine producers. These three bacteria were among the most-commonly studied in the data we’ve seen that exhibit an overall impact of not increasing histamine or D-Lactic acid. Bifidobacterium infantis and Bifidobacterium longum have both been noted to reduce histamine levels, and also have do not increase D-lactic acid levels. Lactobacillus rhamnosus does produce a small amount of D-lactic acid, but it’s a near-negligible amount. It is a high-producer of L-lactic acid, and has been shown to lower histamine levels as well as downregulating the genes associated with mast cell activity (involved in histamine release) [15].  Bifidobacterium are regarded as being native colonizers to the human gut, and are generally regarded as non-lactic acid producers. Most all Lactobacillus types produce lactic acid—having been named for such. There are likely many other bacteria that should be considered for use among highly-sensitive induvial but these represent those best described in currently-available data.
Final Considerations
Existing data describing the impact of common probiotics on histamine and lactic acid levels is sparse. This article draws on data spanning from food science, to human study, and also among animals. There is a high degree of variation in how this data is presented among researchers, as well as how they’ve chosen to identify specific bacteria strains. Probiotics offer a strong hope in the ability to help address many health conditions. Research has tied imbalances of bacteria to chronic health conditions such as ME/CFS, allergies, and even anxiety. It seems safe to say better health is seen among those with a well-balanced microbiome. For those working towards establishing or maintaining such a balance, there are often many unknown hurdles that impede progress. Histamine and D-lactic acid are two compounds with the potential to cause many issues. Making careful consideration of how probiotics impact levels of these compounds may help overcome many issues. Additionally, ingredients such as MOS, FOS, and high dietary fiber may also present challenges for those with high levels of unwanted bacteria.  If you are struggling to rebuild your gut health and have been struggling with probiotics, the above-mentioned bacteria are likely all excellent choices for you to further investigate. There is always the possibility they will impact you negatively as well, and consultation with your doctor and quality laboratory analysis is the only way to truly diagnose your particular circumstance.
References
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Megazyme International. (2014). D-Lactic Acid and L-Lactic Acid Assay Procedures. https://secure.megazyme.com/files/Booklet/K-DLATE_DATA.pdf
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Garai G, Dueñas MT, Irastorza A, Moreno-Arribas MV. (2007). Biogenic amine production by lactic acid bacteria isolated from cider. Lett Appl Microbiol. 45(5):473-8. http://doi.org/ 10.1111/j.1472-765X.2007.02207.x
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Moreno Muñoz, J. A., Chenoll, E., Casinos, B., Bataller, E., Ramón, D., Genovés, S., … Rivero, M. (2011). Novel Probiotic Bifidobacterium longum subsp. infantis CECT 7210 Strain Active against Rotavirus Infections. Applied and Environmental Microbiology, 77(24), 8775–8783. http://doi.org/10.1128/AEM.05548-11
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The Article Probiotics: A Guide For Those With Food Sensitivities was originally published on the Isotrope website
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agreenroad · 6 months ago
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Deficiency of Enzyme Histamine N-Methyltransferase (HNMT) Linked to Nervous System And Brain Disorders - Drugs, Choline Deficiency Inhibit HNMT Enzyme
AGGRESSION AND IRRITABILITY ARE TWO EARLY SIGNS OF AN ALLERGIC REACTION, POTENTIAL HISTAMINE TOXICITY Aggression/irritability are early signs of allergic reaction."Histamine N-methyltransferase regulates aggression and the sleep-wake cycle"https://t.co/BXGkIHu0imHistamine N-methyltransferase regulates aggression and the sleep-wake cycle. 7. 10.1038/s41598-017-16019-8. https://t.co/bFhyfLnR8C—…
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justsaynotochocolate · 8 years ago
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Signal transduction by histamine in the cerebellum and its modulation by N-methyltransferase. - PubMed - NCBI
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eurekamag--com · 8 years ago
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http://dlvr.it/NMK1dv
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eurekamag--com · 8 years ago
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http://dlvr.it/NCKj9W
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