Bax_Cadarn
Bax_Cadarn t1_jbnrycc wrote
Reply to comment by Tsunnyjim in Human to Primate blood transfusion possible? by Lost-Wash-5521
Plasma and RBCs both can cause issues as while RBCs have the antigens that the donee can target and destroy, plasma has the antibodies ro do that. That's why someone with 0 can't be given AB RCSs - they will have the antibodies against these cells and the cells will get shredded.
Bax_Cadarn t1_jatgzop wrote
Reply to If cancer is caused by mutations in genes that regulate normal cell development/division, how does killing cancer cells prevent it from coming back? by [deleted]
You seem to misunderstand what a mutation means. A mutation is a random change in a gene. That happens millions of times in millions of cells in our body. Many of those mutations cause the cell to die, some don't change anything, some may make it get better at something, like not dying - putting it on the path to cancer.
If cell#74729194 mutates and becomes cancerous, it divides, divides and divides. If chemo poisons it and all its descendants, You should be cancer-free.
In reality, the more a cell's DNA is altered, the less stable it becomes, which makes every next generation of cancer different from the previous ones. That in turn makes it so all the cells are different, which can cause say 70% of the cells to respond to chemo while the rest won't.
The other problem You touched upon is what is considered a remission - yes, if we don't find a trace of it, we will consider it a remission - but we can't deconstruct a human to check every cell if there aren't 3 metastatic ones in that person's brain, one in the little left toe, and some next to where the tumor was. Best we can do is find a new small tumor, or some activity suggesting a metastasis, which can look similar to say an infection (and inflammation).
It is complicated, I think the first 2 paragraphs show what You wanted, and the rest is more corrections. Hopefully they are clear.
Bax_Cadarn t1_ja3pefu wrote
Reply to comment by Bad_DNA in Do lymphocytes always have 46 chromosomes? by Few_Abrocoma1475
Annoying nitpick of the day: platelets aren't even cells like RBCs are (who actually have a nucleus during their griwth which they then discard), but parts of cytoplasm of a megacariocyte.
Bax_Cadarn t1_j9u2js5 wrote
Reply to comment by riuminkd in Do all thinking creatures on Earth use neurons? Does an example of non-neuron based biological "intelligence" exist? by Wun_Weg_Wun_Dar__Wun
Do You realize that our solving a maze is just following what we see?
Do You realize a rat solving a maze could do that just by smelling food or from memory?
Bax_Cadarn t1_j9hqyhn wrote
Reply to comment by concealed_cat in when a limb gets amputated, how do they stop the flow of blood? by EnchantedCatto
Some will clot at the end, some will leave by freshly built microscopic roads, some will go up a bit and leave by the past few junctions afaik. For more details, ask a vascular surgeon ;-)
Bax_Cadarn t1_j9ggwpb wrote
Reply to comment by Training_Ad_2086 in Why can’t you “un-blur” a blurred image? by so-gold
Um, maybe this will explain what I think they mean.
Say the picture is one dimensional. There are also only 10 colours. Blurring is moving the colour in some way.
Picture:0137156297 Blurring:11111(-1)(-1)(-1)(-1)(-1)
Blurred:1248245286
Now lnowing both bottom lines, can You figure the top?
Bax_Cadarn t1_j9g9qhy wrote
Reply to comment by SlingyRopert in Why can’t you “un-blur” a blurred image? by so-gold
>lets assume you already know how much it’s been blurred.
the poster seemed to consider a situation when they know precisely how the image was blurred lol. Is it possible then?
​
Like x+y=3, if You know y =1, can You know x if x is the blurred image?
Bax_Cadarn t1_j9fvpam wrote
Reply to comment by chairfairy in when a limb gets amputated, how do they stop the flow of blood? by EnchantedCatto
You made it sound like the blood would go "nothing to see here" and turn back through the arteries. I made it so people wouldn't get confused.
Bax_Cadarn t1_j9fbmpq wrote
Reply to comment by chairfairy in when a limb gets amputated, how do they stop the flow of blood? by EnchantedCatto
Close but not precisely. Think of it like a road system. Whdn You drive off a highway going north, You don't use the same way to go south. You need to drive to a smaller road to later rejoin increasingly larger roads until You enter the main flow from another side.
In ither words arteries branch off into increasingly smaller vessels up to the capillaries, then those collect into bigger and bigger veins
Bax_Cadarn t1_j97cf64 wrote
Reply to comment by tinkh in Can doctors tell when cancer is caused by something specific, such as smoking or chemicals? by [deleted]
I'm studying for a big exam and basically every disease, restrictive or obturative, lowers DLCO lol. (Barring alveolar hemorrhage). Not just COPD or smoking-related diseases like DIP.
By identifying cells from BF or EBUS or biopsies, You mean like looking for macrofages loaded with soot?
Bax_Cadarn t1_j9630xk wrote
Reply to Why are fevers cyclical? by Key-Marionberry-9854
I can't say that was ever discussed during patophysiology.
One case which I can speak about is malaria. There, it is due to Plasmodium's life cycle. It takes 3 days for them to mature in a cell. So day 1 they enter the cells, they 4 they burst the cells open, which releases all its crap simultaneously from many cells. Day 7 it's hatching time again etcetc.
I reckon there's also 1 with 4 day life cycle.
Bax_Cadarn t1_j95fqtg wrote
Reply to comment by beyardo in If a human being is bleeding internally say in their mouth or stomach would they still have a risk of anemia? by Robbeee
That's why chronic disease is normocytic while with blood loss is microcytic. Unless with long term small bleeds the body adapts to eventually make them normal size too.
Bax_Cadarn t1_j95fmwc wrote
Reply to comment by mumtathil in If a human being is bleeding internally say in their mouth or stomach would they still have a risk of anemia? by Robbeee
And that is why we can't differenciate between taking Tardyferon and a GI bleed - the stool is black in euther case, and the tests for blood in stoll post a positive.
Bax_Cadarn t1_j8udy5w wrote
Reply to comment by CrateDane in Is blood toxic to neurons ? by AdEnvironmental8339
I would like a neurologist/immunologist to correct me if I'm wrong but. Isn't the biggest reason is that while differenciating leukocytes reacting with brain's molecules aren't destroyed the same way ones reacting with other irgans are? So basically they see a foreign material and attack it?
Bax_Cadarn t1_j7oxi3j wrote
Reply to comment by dug99 in Are people with autoimmune diseases less likely to get viral infections? How about cancers? by Selfeducated
That's actually interesting. Can You present data about how steroids affect the development of cancers?
Bax_Cadarn t1_j5jl8ku wrote
Reply to comment by daywalkker in What is a neurotransmitter "turnover rate", with reference to acetylcholine? What does it mean if the turnover rate is increased or decreased? by yungPH
I have a question: how do Americans always have acronyms for everything? I try to do that in Polish and all I could figure out was causes of acute pancreatitis.
Bax_Cadarn t1_j51914h wrote
Reply to comment by firstfrontiers in Is there any difference in efficacy when a vaccine is administered somewhere other than the upper arm (e.g. on the foot)? by MercurioLeCher
You didn't mention one very important thing: research. To reguster a drug, You need data backing it up, either as safe and effective or noninferior to another similar drug(which is to say, it's not less afe and efficient).
Bax_Cadarn t1_j50zfyj wrote
Reply to comment by Gonjigz in Given that reproduction is difficult or impossible when both animals have different numbers of chromosomes, how did so many species evolve to have so many different numbers of them? by MercurioLeCher
Nope, Turner's is the only nonlethal monosomy, but there are 2 more non-sexual trisomies that aren't lethal, 13 and 18 iirc.
Bax_Cadarn t1_j506f30 wrote
Reply to comment by suvlub in Given that reproduction is difficult or impossible when both animals have different numbers of chromosomes, how did so many species evolve to have so many different numbers of them? by MercurioLeCher
I would like to point out many women can have 45 chromosomes and people with 47 or 48 aren't unheard of either - Turner's and Klinefelter's.
Bax_Cadarn t1_j4143ot wrote
Reply to comment by GlitteringVersion in TIFU by jokingly telling my friend he was born on a laboratory by JJJJPPPPP8A
I would argue the spunking makes it more satisfying for the parents. While I was a bit nervous, the 1,5 years it took us for our first child had its benefits ;-)
Bax_Cadarn t1_j0b75uj wrote
Reply to comment by Alpacaofvengeance in Will my kids inherit the genetic mutations that I aquire during my lifetime? by RedditScoutBoy
There is this type of cancer called seminoma. Every cell that divides can become cancer.
Bax_Cadarn t1_ixmqkic wrote
Reply to comment by Lowtiercomputer in If freezing tissue generally damages the cells, how are we able to freeze human eggs and embryos for birthing later? by badblackguy
I don't know what makes poorly differenciated glial cells any special but yes, gliala cells makes myelin sheath, as well as supporting cns tissues, and differenciation is the process of a cell turning from a basic, undifferenciated cell into one with a very specific function.
Bax_Cadarn t1_iu3f3y4 wrote
Reply to comment by BlazeObsidian in If Robert waldow became so tall because of an excess of hgh, then why does taking hgh not make you taller? by Komoasks
To add to what u/Cautemoc said, corticosteroids actually cause the loss of bone mass.
Bax_Cadarn t1_je1omz6 wrote
Reply to comment by dclxvi616 in We, as Humans, are coming closer to evolve into a new race of Humans. by Coloss260
You are absolutely correct. That is like that facebook meme my wufe found where a woman had nose surgery because she wanted her children to be born with nicer noses xd
Unless humanity devolves to only mate on Tinder. I'm sure misswipes could affect one's ability to procreate.