The study of the immune system in organisms, primarily responsible for fighting infection.

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HIV and T helper cells

As far as I know and could understand from reading about HIV, T helper cell is one of the main reasons to develop AIDS in patients infected with HIV virus, that because the absence of helper T cell ...
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1answer
130 views

Are there any viruses or bacteria which have evolved to withstand higher temperatures due to fever

My question was raised after receiving this information: The primary reason the body raises its temperature (via the Hypothalamus in this case) is that bacteria and viruses tend to optimally ...
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1answer
68 views

What factors must be taken into account for the maintenance of the immunogenicity of ovalbumin antigen?

What factors must be taken into account for the maintenance of the immunogenicity of ovalbumin antigen? If the ovalbumin is aggregated, could we inject it for induction of immune reponse?
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1answer
293 views

Can the RNA in the HIV virus make viral enzymes without entering the nucleus?

If the provirus was not formed yet, can the virus make viral enzymes? (I know that it already has some, but supposing it doesn't)
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1answer
20 views

Do any nonhuman species have effective ebola immunity?

I've read that ebola is an effective killer in humans because it has the ability to interrupt dendritic cells from manufacturing proteins that cause the immune system to destroy the dendritic cells ...
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1answer
38 views

Do's and Don't's of Undergraduate Research? [closed]

I was fortunate enough to get a position as a researcher for the Mayo Clinic's SURF Program this year. My PI's lab focus is on the the immune system's role in CNS axonal and neuronal injury, ...
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1answer
70 views

Why are haploid cancer cells not killed by immune system?

I have seen haploid cancer cells (I think it was leukemia cells) in a lab. Sperms and eggs are haploid but are not destroyed by the body because they are protected by other cells surrounding them. ...
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1answer
51 views

Can pets catch the cold?

Last night I was drying my cat with a towel after shenanigans in the rain and she sneezed! Questions Can cats/dogs/hamsters or other pets catch the cold? How quickly do they recover?
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1answer
33 views

Variation in MHC in humans

What evolutionary process lead to so much variation in MHC? What is the advantage of having such variation?
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1answer
38 views

Can antimicrobial peptides be called antibiotics?

Antibiotic peptides are present in almost all multicellular eukaryotes. So can they be called antibiotics ? ( which are usually defined only for fungi and bacteria )
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Is a naive immune system equally able to handle new antigens as an educated one?

This is a variation of the "does the immune system run out of memory" question. Here's a (possibly imperfect) thought experiment: You take two twins. One of them lives in a bubble from birth. One of ...
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36 views

Is an antivenom venomous?

What happens when someone takes an anti-venom for an animal they weren't bit by, either for incorrect identification of the animal they were bit by or if they weren't bit at all? I am looking for the ...
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0answers
20 views

Neutrophil elastase ELISA

I want to do the above assay but by mass spectrophotometry (MS). Hence I need to optimize in MS friendly buffers like formic acid, ammonium formate, ammonium acetate. Has any one done this ...
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0answers
41 views

What are the effects of excessive UV exposure on the human immune system?

In my readings, several authors have suggested that excessive/prolonged exposure to UV (particularly UVA) can have harmful long term effects on the human immune system. This leads to my question, ...
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2answers
400 views

More proteins from diet when common cold and flu?

My coach says that I need to eat 1.2 - 1.5 grams of proteins per kilogram when I have a common cold and flu. I normally eat one gram of proteins per kilogram, while double it when doing my exercise ...
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1answer
30 views

What is immunosuppression? Why would one use it? [closed]

What is immunosuppression? I know it is used in cancer patients, but why would one want to suppress the immune system? Do homeopathic physicians ever use immunosuppression, or do only allopathic ...
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1answer
94 views

What causes peanut allergies?

Surveys show that 0.6 percent of the US population has an allergic reaction to peanuts. This prevalent allergy has even prompted some to ban peanuts from schools altogether. I am completely ...
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1answer
64 views

How does human body deal with inert solid material in the bloodstream?

How does human body deal with inert solid material in the bloodstream? For example, if there is a powder of glass injected into our bloodstream, will the white blood cells do anything or will kidney ...
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1answer
39 views

Why it is rare for person to get infected with two Pathogens?

Why is it rare for a person to have 2 (or more) infectious diseases (for example: Flu & Cold together at the same time)? Although it's rare, it happens when the immune system is weak (e.g when ...
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3answers
52 views

Cell identification by Body Cells

How do the B-cells and T-cells recognize or distinguish a body cell from a foreign particle? I suspect something to do with this causes Auto Immune Disorders.
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2answers
226 views

Do cockroaches have less health issues than humans?

Cockroaches are known to live in very dirty places like sewers. Does this cause them to evolve to be stronger against parasites and bacteria? Recently I read online that cockroaches can sustain ...
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1answer
23 views

What are the purposes of granulocytes in acute inflammation?

I heard the phrase Neutrophilic leucocytes are kings in the acute inflammation. Neutrophils are granulocytes, while leucocytes are not granulocytes. I think this statement refers to the fact ...
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0answers
25 views

Allergic rhinitis vaccine

Note : Any answer to this question will not be (and should not be) taken as medical advice. One of my friends has allergic rhinitis and has been prescribed an oral vaccine. He is allergic to 3 ...
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1answer
57 views

How HIV Affects and Its Treatment using Combination Therapy

Can someone please help me with the following questions. I've written my specific questions right after the text question. Human immunodeficiency virus (HIV) is a retrovirus. Its genome is a single ...
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0answers
47 views

Biological/molecular basis of nutritional need differences between blood types?

There are many nutrition books and websites (like http://www.aqua4balance.com/Healthy-Diet/blood-type-nutrition-educational-workshop.html) that assign very different nutritional needs to individuals ...
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215 views

Why human body cannot defend against HIV? [closed]

Some says that HIV destroy IRF3, and some says HIV overruns T-cells.
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1answer
50 views

Can cancer be an immune system disorder? [closed]

Can cancer result from a weakened immune system? Would this mean that cancer could be considered an immune system disorder?