#immunology notes

[er-cryptid]

Patreon

[scientific-tricorder]

Something that I noticed and started really bothered me, is that it makes no sense for Trill to be very sensitive to allergies. If anything, it should be the other way around.

Allergies happen when your immune system recognizes a substance and decides that it must die, even though said substance is generally pretty innocuous. So, a tiny bit about the immune system, or at least the part of it that's relevant to this discussion. The immune system is activated by little molecules, which you might know as antigens. They're basically just tiny bits of protein that the immune system can sense and bind to. Self antigens are stuff that's just normally in the body, and the immune system generally ignores them, and non-self antigens are anything from outside the body, which the immune system may decide is an attack.

And how does this relate to the Trill? A symbiont is basically a giant chunk of non-self antigens that's inserted into the body (kind of like an organ transplant), so the immune system will freak out, which is generally pretty bad. Which means that the immune system is likely somewhat dampened in a joined Trill, which would also dampen an allergic response. I.e. Being very sensitive to allergies is the exact opposite of what would be expected to happen.

[reicchel]

While Tamayo and Yushiro are both characters i adore, i don't really ship them as they are in canon. I slightly favor Yushiro over Tamayo because his obnoxious personality truly resonates with me like. he and haganezuka are the two kny characters i relate to so you get the picture even if Tamayo is a doctor and a honorary immunologist. So there's a part of me that would like to see his love being requited. I would also love to see Tamayo forgive herself and be able to let go of her late family, even if not necessarily only to get together with Yushiro.

But if they were to get together, I would like to see Yushiro help her accept that she is a demon, and that even if she was turned into a demon by Muzan, she's got nothing to do with him anymore thanks to her own will that allowed her to change the demon qualities she so hated. Because it feels like she thinks she completely lost her humanity, but i think she regained a lot of it as we see through her kindness, mercy, generosity, etc--like, there are humans more cruel than her. I know Yushiro can see this, but he either doesn't tell her or she just won't believe him.

[jji-lee]

𖦹 .ᐣ.ᐟ₊ ⊹ cryptic crush — profiles [1]

the babygirls !

english major y/n wonders why no girl on campus likes her... it may be because she's mark lee's cockblocking neighbor, continuously banging on his door mid fuck telling him and whatever girl he's with to "shut the fuck up." (you'd hate her too if she ruined your time with the mark lee)

zhong chenle is hot and available, but he only seems to have time to study for his pharmaceutical science major. so for now he's stuck having to deal with his horny single friends. he may pull a string or two from time to time in order to see his friends end up happy.

bad bitch energy takes form in nursing major huang renjun. he knows he's attractive and he'll use any opportunity to let you know it, but don't let that fool you, he's top in his class... how does he have time to study with all the parties he drags you to?

immunology major na jaemin tags along to all the campus parties to make sure all the drinking and making out with strangers doesn't get any of his friends sick... thats what he says, but he might be using that as an excuse to catch a glimpse of lee jeno

these sexy nerds met in their introductory english course... i guess only y/n decided to pursue that professionally. finding love has been hard for this group since their majors require their full attention, but maybe this is the year that all turns around. (they love drinking and partying, just to release academic tension ofc!)

masterlist — profile [2]

notes : the last profile is y/n's profile for the anonymous love app... i'm excited for this ones guys something about this friend group just feels right to me (i hope you watched jjk already)

taglist : @sunghoonsgfreal

[all-pacas]

Bear with me here.

In Failure to Communicate, Chase is going to give the patient an MRI and the patient suddenly grabs his arm and says something unintelligible. Chase assumes he's talking about drugs and says they won't tell the wife, then continues the procedure. Later in the episode, Cameron finds Chase's notes:

CAMERON: He mentioned stain once before when Chase was giving him the MRI. Before we scared him. CHASE: He did? CAMERON: It's in your notes.

So even though Chase totally and utterly forgot the conversation (on brand tbh), he not only recorded that it happened but wrote down the guy's exact words.

And then in Teamwork:

LUCAS: You're good at [writing notes], by the way. CHASE: Why are you reading my charts? LUCAS: Because I’m worried about my girlfriend. […] Which brings us to the fact that you have elevated noting to an art form. LUCAS: Most doctors write "9:00 a.m." if they scrub in at 9:00 or anything near it. You write 9:03, and you make little notations when procedures are delayed. CHASE: You're easily impressed. LUCAS: Well, yeah. I was, till I saw that you had virtually stopped writing them about four weeks ago. CHASE: Been busy. Got a backlog. LUCAS: Yeah… People with your level of precision don't really just "get" backlogs. No one knows why you're leaving PPTH. CHASE: Because it's personal.

Chase is apparently really meticulous. He records conversations verbatim, he is exact with his times, he notes delays and the reasons for delays. He is precise, enough that it's apparently glaringly obvious when he stops. And that's really interesting to me, like, he has this in-universe reputation as being lazy, he's certainly unambitious, he doesn't try to flex his intelligence or abilities like, say, Foreman does. Chase is rarely treated as an expert, someone to consult or turn to in the way Foreman is on neurology and Cameron is on immunology: he's not an idiot, but he's not a specialist in the same way, yeah?

But he really is very, very solid. In his intensivist days, his job is to keep people alive and he's very good at it. He's stated repeatedly to be the best surgeon in the hospital. He apparently takes just incredible notes. It's honestly pretty funny how competent Chase is, despite his reputation. Even his noted observation skills and ability to solve cases kind of ties into this: maybe he's not the most book smart of the team, he forgets he had a conversation two days later, but he wrote it down anyway. He's meticulous, and that isn't the flashiest skill but it's a very good one in his position.

[studentbyday]

week 1. a stuttering start.

i can't believe autumn is already approaching. i feel like i haven't done much to truly live on my own terms this year... (the majority of my time was spent either chained to my desk, living the studying hermit life as usual, or...and this is a new one for this era of my life, feeling like a child following the real adults around on my travels which @zzzzzestforlife documents way better tbh. the travels, that is...)

in addition i've been feeling very unmotivated and numb this school year. even more so than usual. i've never been as zesty as...well, Zesty when it comes to new school years, but it has slowly been getting worse since i started uni and i think i'm getting dangerously close to falling off some cliff i'll later realize was an important cliff to not fall off of. do you get what i mean? i'm only speaking vaguely because i myself do not quite know.

i oscillate between wanting to be extraordinary and extra ordinary. i have fallen back into bad habits, which do not set a good precedent. and overall i feel lost. so so lost that i started reading designing your life. and dulled by the isolation of school i can hardly focus. it's not a new problem, i've just finally been able to put words to it after all these years. engaging and/or cathartic verbal conversation brings me back to life, whether i'm listening or speaking, but i don't get enough of that in my daily life...this is just a very weird mundane state to be in. don't get me wrong, i was relieved to get back to this life with a very predictable pattern after the hectic-ness of travel, but something about it always felt off and i almost can't believe that only now i've realized why.

anyway, feelings pass. and i have overcome the jet lag, so i am that much more energized (and perhaps a little more desperate) to bulldoze through this problem.

Study:

Read/skimmed all the syllabi for anything new (much of it is the same year-to-year as they're all courses in the same faculty and i am resigned to the fact that there will be weighty group work in at least one course out of every year)

Caught up on course announcements

Finished microbiology module for this week (hmmm i read like half of this module last year when i attempted and then dropped this course so it wasn't the most interesting the second time around but i think it'll get better as i get to the new stuff and the nitty-gritty details 🔬 mwahahaha 🦠 i also decided last minute to make flashcards for these and had to transfer my notes to anki. i wish there weren't so many isolated facts or similar but distinct processes i need to remember.)

Made flashcards for half of this week's immunology content (seems to be a memorization-heavy course and i think i really need the active recall since i barely remember the pre-req info 😅 luckily they review it in the module... 🤭)

Reviewed some of the flashcards made this week

Worked on (but didn't finish) global health slides for this week (i'm...not entirely sure what i should be taking notes on or how because...this all seems either very common sense or kind of..."woo-woo" based on my way of understanding the world...but ig that's my own biases talking? i hope they'll just test us on the common sense stuff. that will be easier for my brain 🥴)

Around half of pathology slides are left from this week (probably the most work intensive course i'm taking rn based on the timeline 😵 but also it's shaping up to be my favorite subject this semester because the modules are so well designed AND it's large processes or, even if it's smaller concepts, they're all connected to each other so i don't need flashcards!...i think! i can just pull on the thread of memory and it all unspools (...ideally...)!)

Wrote down due dates for all assessments this semester

Other life things: (yeah idk what to call this section)

I became a 6AM girlie!!! 🥰🥰🥰

Unpacked

Washed my water bottle

Caught up with a friend 💗

Health:

Yoga x2

Journalled x2

Early morning walk in nature x1 (the air smelled so so fresh i was so glad i went out...and even gladder that i went out when i did because after that the air quality got super bad from wildfire smoke 🥺)

Pilates x1 (i made it! in 2 split sessions, but still! and i feel great!!! 😃 i'm so glad i found this channel because she explains the moves in a way that i can get it even with my bad coordination 😅 she also goes slowly and there is no annoying workout music so i can completely focus on the movements and how they feel, it's perfect. 😊)

Music in My Head:

Blue Danube Waltz (OG piano version)

Treat People With Kindness

On the Sunny Side of the Street

Hikaru Nara (the perfect song for my current ambivalent mood because the whole theme of the anime, which is reflected in the sound of this arrangement, is the need to reignite your spark for the things that mean something to you and make the absolute most of it because life is short)

a few dark academia playlists that i put on loop to study to (links under the cut) (somehow the ones with new age music are the only ones i can listen to...light/quiet enough that it doesn't interrupt my thoughts but intense and melodic enough that it puts me in the mood to focus 😅)

[mitsuyeaah]

study session.

— sanzu haruchiyo x f! reader

cw: nsfw (mdni), smut, fingering, sex toy (vibrator), swearing, pet names (darling, baby), sanzu being a lil’ shit

a/n: lovely nonnie has inspired me to write a lil drabble with sanzu since i am studying for my finals as well. thank u for this idea hehe <3 sorry in advance for any typos, i wrote this with tears in my eyes.

it was a rough night to say the least, you didn’t even notice the sun beginning to set under the horizon since your eyes were too focused on your notes before you. it was only then you realised how much time you’ve spent studying when your boyfriend made his presence known by kissing the crown of your head.

it all started innocently, really. a gentle exchange between the two of you—telling him how you’ve been very stressed and worried for your upcoming finals. of course, being the good boyfriend he was, he offered to take your mind off your worries for a bit.

now, as innocent as the offer was, your boyfriend’s fingers deep inside your wet cunt as he stood behind you was not what you initially had in mind. one knee was propped on the desk, resting above your notes as your hips pressed against the edge of your desk. the chair that you previously sat on was whisked away, somewhere in the room.

“ah, fuck! sanzu—ngh!” you breathlessly moaned as he added a third slender digit inside, your hands turning into fists against your immunology notes, causing the paper to crumple under your touch. sanzu peppered your nape with open-mouthed kisses, goosebumps forming at your skin.

“mmm, my darling has been diligently studying that i just had to treat her..” he sent vibrations down your spine as he spoke against your skin.

at this point, your study notes were long forgotten. the constant worry that plagued your mind of failing your finals disappeared, and the only thing in your pretty little head was how much pleasure your boyfriend was giving you. how delicious his fingers felt inside you. how the deep pit in your stomach bubbled at the sensation.

the next thing you knew, your cheek was pressed against your notes, and the crown of your head making contact with the edge of your laptop. both your wrists were pinned against your lower back by one of sanzu’s hand, while the other held your favourite vibrator against your puffy clit.

it was turned to the highest setting. little shit.

you didn’t even know your ears were ringing until it finally subsided and you could hear sanzu’s sly voice cutting through, “c’mon, baby, answer the question. how’re you going to prepare for your exam, hm?” you couldn’t see him but you knew he had a shit-eating grin plastered on his pretty face. as always.

you didn’t even hear his question because of the loud ringing in your ears. “aah! w-what..?” your voice came our quieter than you intended but it was loud enough for sanzu to hear above the buzzing of the sex toy.

“i said, describe antibody, IgM.” his cerulean eyes quickly scanned over the notes on your laptop screen before returning them to you. he tilted his head to the side, waiting for an answer.

opening your mouth to answer, a loud whine escaped your lips as sanzu pushed the vibrator past your wet folds. you closed your eyes shut, face contorting with pleasure as he started thrusting the device in and out. “haah! fuck! I-IgM antibody is the largest antibody molecule—ngh!”

sanzu absentmindedly leaned down to connect his clothed chest with your back to suck on your nape, waiting for you to continue. the mixed sensation of the vibrator inside you and sanzu sucking on your skin absolutely drove you crazy. the answer inside your head suddenly dissipated into thin air like smoke.

“shit.. this antibody is mostly confined to the—ah! to the.. to the blood and lymphatics since it cannot be transported across—hmph sanzu! it can’t be transported across the fucking placenta.” it took all your willpower to get all those words out, it didn’t help how your boyfriend picked up the pace of the vibrator.

tears rolled down to your notes as he brought the vibrator back to your clit, earning a loud shameless moan from you. you didn’t even care if the ink was going to be smudged from your tears, all you wanted was to reach your orgasm.

“good girl.” sanzu breathlessly chuckled against your skin, his free hand travelling down to your chest to squeeze and grope at your breast over the fabric of your shirt.

“what are the two major sites for establishment of immunological tolerance? tell me, baby or you won’t get to cum.. need to get you prepped for your exam.” your heart sank to your stomach at the mention of your orgasm denial. despite your lust-fogged brain, you tried to wrack your mind for a coherent answer but the only thing that came out your mouth were moans and incoherent sentences.

“aah! shit shit! i don’t fucking know! please, just let me cum, sanzuuu..” you opened your eyes, vision obstructed by tears as you craned your neck to try and meet his gaze. “oh? are you telling me you spent hours studying just for you to not answer the question? a pity.. looks like no orgasm for you then..”

you hastily shook your head against your desk, your notes rustling beneath every movement of your head. “no, no, no! please—ah! just let me.. let me think!” you shut your eyes, brows furrowing as you tried to concentrate on the answer, ignoring the familiar sensation that was making itself known.

you panted against your notes, mouth parted, “fuck! i’m so near” you didn’t mean for that to come out but it just did, and you never regretted anything as fast. “the answer, baby. or you’re not cumming.” sanzu clicked his tongue and pressed the vibrator harder onto your clit, earning another loud whine from you.

“c-central tolerance at the—ngh! the primary lymphoid organs! a-and—haah! peripheral tolerance at the secondary lymphoid organs. fuck!” your nails dug into your palms as you answered his question, trying your best not to cum right then and there.

sanzu grinned at your answer, “that’s right. m’baby is so smart, huh? now, why don’t you cum for me?” he didn’t have to tell you twice, you came before he even finished his sentence. a chain of profanities leaving your lips as your vision blurred, and ears ringing once again.

your legs shook from the intense pleasure, a fresh set of hot tears rolling down to pool at your notes. sanzu rode out your orgasm by pressing the vibrator even further onto your clit and whispering sweet praises against your ear, earning small whines from you as you cried out his name like a prayer.

you didn’t expect sanzu to take your worries away by giving you a mind blowing orgasm but you weren’t complaining. if anything, you’d definitely encourage him to accompany you whenever you studied because,

to say the least, study sessions with sanzu were much more interesting and fun.

© mitsuyeaah

[covid-safer-hotties]

Also preserved in our archive

By Amy Norton

The virus can trick your body into attacking itself.

Brittany Underwood was 37 when she was hit with COVID early in 2021. Her case was mild, and, like the mom she is, she took care of everyone else because of course the rest of her family had it too. It wasn’t until a couple weeks later that she started to feel lousy—wiped out, constantly thirsty, and dealing with weird issues like blurry vision in one eye.

When Underwood brought those symptoms to her doctor, he decided to run some blood tests. “My blood sugar was through the roof,” Underwood tells SELF. It was so high, in fact, she ended up in the hospital that same day, where they handed her a diagnosis that would change her life: type 1 diabetes.

This autoimmune disease is most often diagnosed by the age of 14—it used to be known as juvenile diabetes because it’s the type that most often hits kids, teens, and young adults. Because Underwood was approaching 40, her case was unusual. But her doctors raised a possible explanation: She’d just had COVID, and they suspected the infection might have triggered her diabetes.

Nearly four years later, we have a lot more than suspicions. In fact, the pandemic has been blamed for a spike in type 1 diabetes. New cases in kids and teens jumped up 16% in the first 12 months of the pandemic and 28% in the following year. (Before 2020, the typical increase was 2% to 3% per year.) And it’s not just type 1. Other autoimmune diseases—including rheumatoid arthritis (RA), psoriasis, and lupus—went up too. Exactly why that happens isn’t fully clear, Sonia Sharma, PhD, an associate professor at La Jolla Institute for Immunology, in La Jolla, California, tells SELF. “But,” she adds, “we do have some clues.”

When your immune system turns on you The idea that COVID could set off a chronic autoimmune disease might seem out there. But, Dr. Sharma says, “it’s not a new concept at all.” Autoimmune diseases are caused by a misguided immune system attack on the body’s own healthy tissue. For that to happen, a perfect storm of conditions has to come together. Genes definitely matter, Dr. Sharma says, since autoimmune diseases tend to run in families, and studies have tied certain genes to higher risks of the conditions. (Underwood says she has a family history of autoimmune diseases.) Your sex assigned at birth matters too: Autoimmune diseases are way more common in women than men, Dr. Sharma notes (though anyone can get them).

But those kinds of risk factors aren’t enough on their own. People have to be exposed to one or more “triggers” that tip the immune system into self-attack mode. And microbes are among those potential sparks, Akiko Iwasaki, PhD, professor of immunobiology at Yale School of Medicine, tells SELF.

Studies have linked a slew of infections—including super-common ones like the flu, cytomegalovirus, and Epstein-Barr virus—to various autoimmune diseases. Epstein-Barr, which eventually infects nearly everyone and is usually no big deal, may be the prime example: A recent study found that the infection likely plays a role in most cases of multiple sclerosis (an autoimmune disease that destroys the protective covering around nerve fibers).

There are different theories on exactly how it happens, but Dr. Iwasaki offers a (relatively) basic overview. First, she says, it’s a little known fact that everybody has some number of immune system cells that are “autoreactive,” meaning they’re capable of going rogue against you. Thankfully, they usually don’t. But in certain people, under certain circumstances, an infection might “activate” those autoreactive immune cells.

“Once they’re activated,” Dr. Iwasaki explains, “they can divide and travel to different tissues in the body, and may start to attack your own cells.” All of that, she adds, is more likely to happen when an infection generates lots of inflammation in the body. An ordinary cold probably won’t do that, but COVID might.

How big is the risk? Even though it can seem like we’ve been living with COVID forever, it’s still a very new thing. Because of that, Dr. Sharma says, it’s only recently that studies have been able to turn up strong evidence that the infection does trigger autoimmune diseases.

That includes this 2023 study of close to 4 million Americans. It found that people diagnosed with COVID had higher odds of developing autoimmune diseases over the next six months, versus COVID-free people. On average, they were roughly three times more likely to be diagnosed with conditions like RA, lupus, psoriasis, celiac disease, and type 1 diabetes.

Really important to point out here: Although three times more likely might sound huge, the risk of any one person developing an autoimmune disease after COVID is still low, Sara Martin, MD, medical director of Vanderbilt University Medical Center’s Adult Post-Acute COVID Clinic, in Nashville, tells SELF.

Another 2023 study, published in Clinical Rheumatology, helps put things into context. It found that of 565,000 people with COVID and no history of autoimmune disease, 1% were diagnosed with an autoimmune condition over the next 3 to 15 months. That was 43% higher than the rate among people who didn’t have COVID during the same period. Although that sounds like a lot, it was an increase from roughly 11 to 15 cases per 1,000 people per year. So…not a huge amount, but not something to dismiss either. And if you’re one of the unlucky people who does develop an autoimmune condition, that’s a heavy toll.

“All of a sudden I had this huge life-altering thing,” Underwood says of her diabetes diagnosis. People with type 1 have to take insulin injections every day to stay alive. So Underwood was forced to quickly learn the intricacies of carb counting, adjusting insulin doses, timing meals to avoid dangerous blood sugar drops—and managing them when they did happen. Time and experience, as well as connecting with other people with type 1 diabetes, have taught Underwood a lot. “But I’m still learning, three years later,” she says. “It’s just a constant thing. You can’t take a day off.”

Is there a way to protect yourself? At this point, many of us have had COVID more times than we’d prefer. So does your immune system get used to the virus, and maybe make an autoimmune reaction less likely?

Unfortunately, Dr. Iwasaki says, there’s reason to believe the answer is no. That’s based on what researchers have learned about long COVID, a collection of symptoms like extreme fatigue and brain fog that hits many people post-infection. Prior bouts of COVID do not seem to lower the odds of developing long COVID (and the risk might even go up each time you’re infected). Long COVID, Dr. Iwasaki notes, is different from autoimmune diseases like type 1 diabetes and RA because the cause isn’t clear and may be due in part to direct damage caused by the virus. But she and other researchers have found that autoimmune reactions to COVID infection may also be behind long COVID symptoms, at least in some people. “I think that’s one clue that reinfection would not lower the risk of autoimmune disease,” Dr. Iwasaki says.

Okay, now for the good news: COVID vaccination might be protective. For one, Dr. Martin says, research shows that vaccination can lower the risk of long COVID, and the more vaccine doses you get, the greater the protection.

There’s also this large study published last year by researchers in China, which found that although COVID was associated with an increase in many autoimmune conditions, those risks were lower among people who’d gotten at least two COVID vaccine doses, versus unvaccinated people.

It’s “absolutely” plausible that vaccination helps, Dr. Sharma says. Vaccination, she explains, primes your immune system to stop the COVID virus “at the front door”—your respiratory tract—so that it can’t hitch a ride around the body, churning up inflammation and, potentially, an autoimmune reaction. And while people can develop autoimmune disease after a mild case of COVID (as Underwood did), research suggests that the odds might be substantially greater if you become severely ill.

“We already recommend vaccination for everyone,” Dr. Martin points out. “It reduces the potential for severe COVID, and we know it also reduces the risk of long COVID.” If you’re worried about autoimmune disease (say, because you have a family history of them), Dr. Martin says that’s one more reason to stay up-to-date on your COVID shots.

[outofangband]

Possible medicinal plants in Beleriand part one /?

This is a resource I created upon commission for @creativity-of-death regarding medicinal plants that do have more evidence behind them with the treatment of wounds. Thank you again for the commission! Commission information in the bottom of my pinned post

I am also very interested in both botany and herblore so I really enjoyed doing this. This post is heavy on plant information and light on world building but I absolutely plan on writing more detailed world building!

This is going to focus primarily on the plant thyme which are primarily used to treat superficial wounds.

Some notes first!

Elves do not suffer full body infection under most circumstances however, wounds can still worsen, become inflamed, and there are factors that can prevent healing which herbs like these can aid in in. I’m going to make a longer post about my thoughts on immunology and elves and the differences between them and humans going through different aspects of human immune systems and the similarities and differences with elven ones but essentially, while I do believe there are microbial infections in the middle earth, elves are largely immune to communicable diseases that affect humans! however, they are not immune to all poisons, venoms and toxins, as we know from certain examples in canon, for example Aredhel’s death

Ethnobotany is notoriously difficult to research as there are so many conflicted sources and it is often difficult to tell what species have been studied, tested, and proved to have medicinal value, which have been proven to not have significant use in this regard and which have simply not been the subject of much research. Especially when it comes to traditional medicinal practices from marginalized cultures and peoples, information is often dismissed, buried or lost. Oral histories or works in translation are often not included in English literature research.

Second note: understanding of the body and of medicine varies tremendously in my opinion throughout the timeline of middle earth. The information included here is largely the information that we know from modern studies, and the language will not necessarily be the same terms of understanding the characters have, for example boards, like “anti-microbial properties” Would largely be understood by first age, elves, and humans to mean plants that assist in the healing of wounds, prevent them from worsening and prevent illness from falling as a result. Throughout history, we see terms like contamination, blood poisoning, and corruption in place of infection before germ theory was widely understood.

OK now for the plants!

Thyme has been proven in some forms to have significant microbial properties. They are some of the best well antimicrobial properties. Thymol a name for oil of thyme* is and has been used in pesticides and medical disinfectants.

Historically, bandages would be coated in oil of thyme to prevent infection, even before the processes of infection were understood. Thyme contains several different subspecies and tends to grow in Mediterranean climates however has been widely naturalized elsewhere.

In Beleriand it likely grew primarily in Ossiriand and Dorthonion but could easy be naturalized in other temperate regions.

* this compound is also found in other plants to varying degrees, but was named after the substance that was first extracted from common thyme

Wormwood, or Artemisia absinthium has also been studied fairly extensively and has been proven to have antimicrobial properties. I know you mentioned spiders and though it has never been tested on spider venoms, it is proven to have anti parasitic properties and has been used to kill other arachnids such as mites and ticks. Interestingly, it has been examined to have neuroprotective properties which might make it useful in antivenoms. These have not been studied as extensively as its antimicrobial properties however.

In Beleriand this is plant that can be easily naturalized throughout temperate regions, especially in fields and foothills. Dimbar, the region of Nargothrond, and the southern hills are some examples.

Calendula (common marigold)

Evidence has shown that topical application can aid in the healing of wounds and in preventing or treating infection. Tinctures and ointments are the most common forms. These flowers grow throughout the temperate world. Overuse could lead to endangerment/extinction easily. Mount Sinai Hospital’s online medical library discusses these properties as does the National Institute of Health. The properties seem to be well proven, especially by ethnobotanical standards!

Marigold primarily grows in warm regions, including warm temperate ones. In Beleriand it probably grew primarily in the west and central regions.

Common tormentil has mild astringent properties which can aid in blood stopping. Creeping jenny or field balm also has similar properties. These both grow throughout temperate climates though tend towards colder regions.

In Beleriand common tormetil could likely grow in Hithlum and in the plains of Eastern Beleriand. Creeping Jenny would likely be found near ponds such as near the Fen of Serech or Twilit Meres.

[larstudy]

✍🏻 6.11.2023 // I was really tired from my weekend which has been a bit chaotic (mostly on Sunday) but I managed to go to the library and study for 3 hours and attend to a meeting about the pharmaceutical industry! It was really interesting even if it's not what I want to do in the future.

I studied the different syringe and detector used to do gas chromatography with their advantages and inconvenients, their characteristics and for which molecule they are used. It's pretty interesting even if I had to do drawings and it takes so much time ugh

I also finished to take notes on my galenic lecture (which is not that interesting imo) and I began an immunology lecture about transplant and graft (it is mostly recalls for now).

🎧 Adélaïde - requin chagrin

[er-cryptid]

Adaptive Immune Response Phases - Diagram

Patreon

[doresworld]

This afternoon I had one of the worst doctors appointments ever, which is saying something, but at least I didn’t have a panic attack this time. 

So in no particular order, I was told:

I obviously present feminine - in response to asking me my pronouns (they also gestured to my outfit, cane, and decorated rucksack, so I’m burning all of this and never wearing it outside again) 

There’s nothing they can do as I’ve tried everything they can offer 

To stop taking my meds as they’re not working, but no attempts to offer me anything new

That said medications aren’t even down as repeat prescriptions as they’re all for ‘acute treatment’ (note that I’ve been on these for almost two years for most of them) 

Told that there’s no point me doing anything about my gender identity as the waiting lists are too long, and I wouldn’t be classed as a priority

That because I’m unemployed it doesn’t matter that I don’t sleep properly because it’s not like I need to get up for anything 

The only place in the country that does immunology tests won’t test me as I’m not actively in anaphylactic shock so I need to find my own ways to treat my symptoms 

When asking me about why I’m unemployed, they asked if it was due to pain, I said yes, but also because I don’t have the right qualifications because I had to drop out when I got sick, and they said ‘how sick? And how was it serious enough to drop out’ - I guess they completely forgot that I am permanently sick as in disabled ??

[justkidneying]

Fever

I see a lot of misconceptions about fever floating around the web, so I'm gonna try and set some things straight. We're gonna talk about what fever is, how it is caused, and types of fever. Then I'll give some writing tips. Just a note, with a lot of things, there are exceptions and special cases. I'm going to go over the most common stuff cause this isn't an immunology course.

What is a fever? The normal body temp (the average of a bunch of people) is 98.2°F. Individuals can differ from this within a degree. A fever is usually a temperature greater than 100°F. There's some leeway to this, and it takes a lot of experience to get a feel for what should be a normal temperature. But if someone comes into the office with a 100°F temp, I'm going to say that they have a fever.

So with fever (ignoring the symptoms of whatever caused it), you're generally going to have malaise, chills, paleness, and rigors (muscle contractions). There may also be behavioral symptoms such as seeking warmer environments, altered mental status, and assuming a fetal position to help warm the body. The peripheral vessels will constrict in order to keep blood in the central body. Once the fever has passed, there will be chills and sweating.

What causes fever? Fever is caused by pyrogens. These can be endogenous (from you) or exogenous (from something else). The main endogenous ones are interlueukin-1, interferon gamma, and tumor necrosis factor α. These are made by immune cells and a few other cell types. Exogenous pyrogens are made by other microorganisms. An example of this is lipopolysaccharide, which is made by gram-negative bacteria. Exogenous pyrogens induce the production of endogenous pyrogens, which induce the production of Prostaglandin E2. PGE2 acts on the hypothalamus to set the body's thermostat higher. This induces the effects seen in order to raise the body's temperature. Fever helps to stimulate the immune system and inhibits microorganism growth (too hot for them). So it's a good thing, unless it gets too high and your organs shut down and your brain melts like butter (i'm kidding...but really, it's bad). I'd say over 110°F and you're probably going to die.

What are the patterns of fever? There are three fever patterns, and they are associated with different pathologies. They are sustained, intermittent, and remittent fever. Sustained fevers are exactly what they sound like. They don't fluctuate more than a degree in a day and never touch normal baseline temp. These are typically seen with pneumonia, typhoid, bacterial meningitis, and UTI.

Intermittent fever is a fever that is only present for a few times throughout the day, with the temp going up above normal and back down to normal. This is seen with malaria, septicemia (a serious bacterial infection -> think septic shock), pyogenic infections (bacteria that cause pus formation), and TB.

Remittent fever fluctuates more than two degrees throughout the day, but does not ever touch normal baseline temps. These are seen with infectious diseases.

These patterns are okayish, but sometimes people don't always have a disease that matches the fever type. I think typhoid, TB, and tick-borne diseases (they cause a relapsing fever) are the best diseases to use fever patterns for.

Writing Tips

Okay, so first off I think fever is great for writing. So to find out what's going to happen, you need to pick out what the nature of the illness is. The most common one I see is infection from a wound of some kind. So this is going to be bacterial. I would say that you are most likely to have an infection with staph, strep, or pseudomonas. These are naturally found on the body, but are not meant to be inside you. A cut in your skin lets them in. This is bad. So your immune system will notice them and release pyrogens, and then you get PGE2, and then you get fever.

I would probably say you'd get the standard symptoms above, plus pain, swelling, and redness at the site of the infection. It's going to be an intermittent fever probably (could end up as remittent). So you would want to treat the infection itself. If there are no antibiotics or antipyretics (anti fever drugs), then you would have to clean and disinfect the wound, and basically hope that the immune system can do its thing. You can wipe the person down or use a cool compress on them, but this doesn't really reduce fever that much and is more of just a temporary relief.

Anyways, I hope this was helpful and as always, sources are in the comments. You can let me know if you have a specific situation you would want some info on in the comments/askbox/DM.

[buggbuzz]

my biotech exam today involves immunology so now im going through my old bio 2 notes and sending them to my classmates. and man do i miss being able to take the time to draw this stuff for my notes

[thecommonplacer]

300 Days Of Productivity Challenge Tracker

Week 1 (20th - 28th Sept. 2024):

✔ Accepted - Early Admission Offer for MSc in Biotechnology (August 2025)

📝 Registered -Three Local Examinations on Biological Sciences - I have three more exams to register for

✈ Research on My Next Destination - Singapore - Should've done it before

🗣 Chinese Lessons on Duolingo - Streak 🔥

📅 My 10 Years' Plan & Back-up Plans

🙏 Thank you Notes - Professors and Acquaintances

☘ Planned - Exam Prep

Secured a Remote Internship - Not sure I'll have the time to continue

Awkward Interactions at Social Gatherings

Week 2 (29th Sept. - 5th Oct. 2024):

📱 Digital Detox

🇰🇷 No Gain, No Love

💻 Data Science Assignment (Week 1)

💻 Introduction to R (Data Camp)

🇰🇷 Spice Up Our Love

💫 Again (Yaoi) Manga

🗣Chinese Lessons on Duolingo - Streak 🔥

Commencement of - Competition Prep, Exam Prep

Week 3 (6th - 12th Oct. 2024):

💫 My Purrfect Boss (Yaoi) Manga

📄 ''Help" Page for the Database I will be presenting on in the Conference

👩‍🔬 Conference Prep - Accomodation, Registration, Poster, Script, Formals

🔊 Maintained Relationship with Former Employer - via Testimonials

💻 In-silco techniques for Immunology

📄 Submitted Research Paper - One Month Later

🗣 Chinese Lessons on Duolingo - Streak 🔥

💻 The Ultimate MySQL Bootcamp by Colt Steele on Udemy

🏠 Hostel Shortlisting - Singapore

📳 Reconnected with Acquaintances

📱 Career Counselling for a Junior

📄 Review Paper Discussion

Week 4 (13th - 19th Oct. 2024): Conference Week

📹 Shot a video for my previous employees

🔬 Immunology

♥ Date with Bestie

👩‍🔬 Poster Presentation

🤙 Networking

🌆 Nostalgia Conference City - because I used to visit the city during the holidays when I was younger

🍎 Ordered a MacBook Pro

Week 5 (20th - 26th Oct. 2024): Recovery Week

🗣 Socials - Instagram, LinkedIn [Conference Related]

📱 Replying to Messages on Socials

💻 Data Science Assignment (Week 4)

📝 Data Science Exam Prep

🍎 Ordered MacBook Pro Accessories - Extension Hub, Screen Protector, Hardshell Case

💻 Started Course - Analyzing Genomic Data in R on Data Camp

📱 Career Counselling for a Junior

📄 Review Paper Meeting

Week 6 (27th Oct. - 2nd Nov. 2024): Consistency/Festive Week

📝 Data Science Exam

💻 Course [1/4] Completion - Introduction to Bioconductor in R

🍎 Apple Account Changes

🍎 macOS Tutorials

Week 7 (3rd - 9th Nov. 2024): Catching Up with Tumblr

💻 Course [2/4] Completion - RNA-Seq with Bioconductor in R

🍎 Notes on MacOS

💻 Python Programming Exam Prep

💻 Second Brain - Cloud Setup

📹 Shot a video for my Alma Mater

💻 Course Completion - MATLAB - Udemy

💻 Data Science Assignment (Week 5)

Week 8 (10th - 16th Nov. 2024): At My Nana's

💻 Course [3/4] Completion - Differential Expression Analysis with limma in R

📄 Review Paper Discussion

💻 Python Programming Exam Prep

Setbacks:

Inconsistency

Very Late Submission - Research Paper

Late Commencement - Exam Prep

[science-lover33]

Complement system

1. Activation: The complement system can be activated through three main pathways: the classical pathway, the alternative pathway, and the lectin pathway. Each pathway involves different initiating events but converges on a common cascade of reactions.

2. Cascade of Reactions: Once activated, the complement system triggers a cascade of enzymatic reactions that result in the cleavage of complement proteins. This cascade ultimately leads to the formation of several key components, including C3b, C4b, and C5b.

3. Opsonization: C3b and C4b are opsonins, which means they can bind to pathogens and label them for phagocytosis by immune cells like macrophages and neutrophils. This enhances the removal of pathogens from the body.

4. Inflammation: Complement activation also results in the release of small peptides called anaphylatoxins, such as C3a and C5a. These peptides promote inflammation by increasing blood vessel permeability and attracting immune cells to the site of infection.

5. Membrane Attack Complex (MAC): The final step of complement activation involves the assembly of the membrane attack complex (MAC). C5b, C6, C7, C8, and multiple C9 molecules come together to form the MAC, which can create pores in the membranes of target cells, leading to cell lysis and destruction of pathogens.

References:

1. Walport, M. J. (2001). Complement. First of two parts. New England Journal of Medicine, 344(14), 1058-1066.

2. Ricklin, D., Hajishengallis, G., Yang, K., & Lambris, J. D. (2010). Complement: a key system for immune surveillance and homeostasis. Nature Immunology, 11(9), 785-797.

3. Merle, N. S., Church, S. E., Fremeaux-Bacchi, V., & Roumenina, L. T. (2015). Complement system part I – molecular mechanisms of activation and regulation. Frontiers in Immunology, 6, 262.

Please note that for the most current and detailed medical information on the complement system, I recommend consulting recent textbooks or academic journals in immunology and microbiology.