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Immune System

This category is for questions about how our bodies identify and fight off disease, infection or pathogens through specialized cells, tissues and organs. The system that does this is called the immune system. It produces antibodies which recognize intruders and neutralizes potentially pathogenic organisms or substances.

4,548 Questions

Anti-B antibody in the plasma is?

A protein that binds to B antigens and clumps those red blood cells.

What are memory cells of immune system?

Lymphocytes that stay in the blood after an infection is gone

What is an agonistic monoclonal antibody?

An agonisitic monoclonal antibody is an immunological term for a monoclonal antibody which attempts to boost the immune system in order to fight infection or cancer.

What are the four types of pathogens?

The four type of pathogens are bacterium, protists, viruses, and fungi. Parasitic worms are NOT pathogens.

What is the carrier effect in immunology?

A carrier is a person or an animal that shows no signs of having a disease but has the infectious cause and is capable of transmitting the disease to others.

What antibody-based test can you buy at your local pharmacy?

An example of a antibody-based test that can be bought at your local pharamacy wouldbe a Pregnancy Test. a pregnancy test is pretty much an ELISA.

What does coagulation of protein mean?

Coagulation of protein refers to their sticking together, like a blood clot, usually as a result of denaturation or coming out of solution due to abnormal ionic strength or a change of solvent.

Which are special molecules of protein produced by the immune system that match parts of pathogens and prevent them from infecting cells?

Antibodies are special molecules of protein produced by the immune system that match parts of pathogens and prevent them from infecting cells.

The immune response that is stimulated in an organ transplant is?

The immune response that is stimulated in an organ transplant is aimed at fighting any foreign materials in the body. The T cells will reproduce by mitosis so as to provide antigens.

What disease was Edward Jenner interesting in?

In 1796, he carried out his now famous experiment on eight-year-old James Phipps. Jenner inserted pus taken from a cowpox pustule and inserted it into an incision on the boy's arm. He was testing his theory, drawn from the folklore of the countryside, that milkmaids who suffered the mild disease of cowpox never contracted smallpox, one of the greatest killers of the period, particularly among children. Jenner subsequently proved that having been inoculated with cowpox Phipps was immune to smallpox. He submitted a paper to the Royal Society in 1797 describing his experiment, but was told that his ideas were too revolutionary and that he needed more proof. Undaunted, Jenner experimented on several other children, including his own 11-month-old son. In 1798, the results were finally published and Jenner coined the word vaccine from the Latin 'vacca' for cow.

HIV weakens the immune system by killing?

HIV weakens the immune system by killing the cells that help to protect against viruses. The HIV virus will make copies of itself throughout the body if treatments have not been used yet to help eliminate the virus.

What is the normal range of lymphocyte count?

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For picc line insertion are there national standards for inr and platelet levels as a cut off for picc insertion?

There are guidelines published by British Committee for Standards in Haematology. It says PICC insertions do not require platelet support or correction of clotting prior to insertion/removal. See the table on page 7. http://www.bcshguidelines.com/pdf/CVC_guidelines040107.pdf Dr. D. Kejariwal

Are vaccinations examples of natural passive immunity?

No, vaccinations are examples of artificial passive immunity. Natural passive immunity is passed from mother to infant either through breastmilk, or while the fetus is in utero with the transfer of antibodies from the mother through the placenta.

What methods can be used to study protein-protein interactions?

There are numerous methods for protein protein interactions. Biochemical methods include: 1) Coimmunoprecipitation - proteins are isolated with specific antobody. 2) Affinity Electrophoresis- estimates protein binding. 3) cross linking - to fix protein interactions before isolating 4) Quantitative immunoprecipitation: to detect interactions between endogenous non tagged proteins. Molecular Biology methods: 1) protein probing 2) two hybid system 3) phage display Genetic methods: 1) Isolation of extragenetic suppressors ,Synthetic mutants