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Antibodies bind the antigen, which then targets the antigen for elimination by innate mechanisms
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The binding of an antigen to an antibody can result in?
neutralization of the antigen, agglutination or precipitation, and complement activation.
The clumping of cells that occurs as a result of an antigen-antibody reaction is called?
When an antigen and antibody react it causes cells to clump together. The term used to describe the clumping of cells is called agglutination.
What is the function of immunoglobulin M?
The normal RDW ( width of each Red Blood Cell) level is 10.2 to 14.5%. It is important to keep in mind that the ranges mentioned above will be different depending on the machine used to do the blood test. Immunoglobulin M, or IgM for short, is a basic antibody that is produced by B cells. It is the first antibody to appear in response to initial exposure to an antigen (foreign substance).
Macfarlane burnet theory about antigen antibody reaction?
The Burnet theory about antigen antibody reaction is a basic concept about how we make antibodies specific to a foreign substance which has the ability to induce an immune response (antigen). Each B cell displas one unique type of B cell receptor on their surface (which is basically a membrane bound antibody). Therefore many B cells, each expressing its own type of B cell receptor are needed to cover the inexhaustable number of antigens that are possible, in the hope that one type of B cell receptor will be able to recognise the shape of that antigen. If one B cell does recognise the antigen in question, then this B cell will become activated to make many clones of itself, which will obviously carry identical B cell recptors which fit the antigen. |Therefore the clonal selection theory by Burnet is about antibody antigen interactions which result in the 'best-fit' B cell receptor inducing a reaction to tell the B cell carrying the receptor to multiply and produce lots of identical antibodies which can then be secreted to bind to the antigen they are specific for.
What is an antibody and antigen?
Antigens are substances that provoke an immune response (they're the ultimate target for the immune system). Antibodies are simply proteins that are secreted as a result of the antigen provoked immune response. In short, antigens cause the disease and antibodies cure it.
What is the Prozone hook effect?
Prozone effect or (high-dose) hook effect is the cause of a false negative or false low result which occur from an excess amount of antigen or antibody in a sample due to the inability of an analyte to bind to a receptor site.
Are chickenpox antibody and shingles antibody the same?
Chickenpox and shingles result from the same virus, and generate the same antibodies. There is no difference between chickenpox antibody and shingles antibody, and there is only one test (varicella virus antibody) for both.
How do you identify different Salmonella species by biochemical test?
You can differentiate between different salmonella strains using serology. Each strain has its own combination of antigens. Depending on the O, H, and vi antigens, you can determine which strain is present. The O-antigen is the somatic polysaccharide antigen, the H-antigen is the flagellar antigen and the vi-antigen is the capsular antigen. Antibodies to most of the variants of these antigens are available commercially for use in labs. Adding an aliquot of specific antisera to a suspension of your salmonella spp, and incubating it for a few hours in a water bath will result in visible agglutination if your salmonella strain possesses the specific antigen to the antibody you added. For example, Salmonella typhi will show agglutination with O [9,12], H [d] and vi.
What is antibodies k?
Currently about 30 different blood group systems are known in humans but the ones of clinical significance are the ABO system, Rh system, Kell, MNS, Lewis etc.The importance of blood group systems lies in transfusion and transplant medicine as we can receive blood (or organ) from only an individual whose blood group matches ours. In case of mismatch, the body's immune system recognizes the 'foreign' antigen and fights it leading to disease states.People without Kell antigens (K0), must be transfused with blood from donors who are also K0 to prevent hemolysis (breaking down RBCs).The K (K1) antigen (antibody) is very immunogenic and causes strong reactions in case of mismatched blood transfusion and severe fetal anemia in sensitized mothers.It is produced only after exposure to the antigen as a result of pregnancy or repeated blood transfusions.
When antibodies bind antigens the clumping of antigens result from?
There are four reactions when antibodies react with antigens: agglutination, precipitation, neutralization or activation of complement. Agglutination is the clumping process that you are looking for.
Your result of widal test is antigen O.180 antigen H.. 1160 antigen A.. no titer antigen B.. no titer What is the meaning of this results?
you might be suffering from typhoid fever as o antigen more than 100 and h antigen more than 200 are significant consult your doctor immediately for proper treatment dr.mahwash
Do mast cells release histamine as a result of the allergen-antibody reaction?
Yes
