Antibodies circulate throughout the body until they find and attach to the antigen. Once attached, they can help other parts of the immune system to destroy the cells containing the antigen.

Testing a stool sample can help doctors find out what's going on when someone has a problem in the stomach, intestines, rectum, or other part of the gastrointestinal ... pylori (pie-LOR-eye) antigens.

You will be redirected to our submission process. Mature B cells express on their surface Immunoglobulin molecules (IGs) [as parts of the B-cell antigen receptor (BCR)], which serve as mediators for ...

Testing a stool sample can help doctors find out what's going on when someone has a problem in the stomach, intestines, rectum, or other part of the gastrointestinal ... pylori (pie-LOR-eye) antigens.