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Agglutination is the clumping of particles. The word agglutination comes from the Latin agglutinare (glueing to). Agglutination is a reaction in which particles (as red blood cells or bacteria) suspended in a liquid collect into clumps usually as a response to a specific antibody.
The antigens and antibodies combine by a process called agglutination. It is the fundamental reaction in the body by which the body is protected from complex foreign molecules, such as pathogens and their chemical toxins. In the blood, the antigens are specifically and with high affinity bound by antibodies to form an antigen-antibody complex.
Red cell agglutination in a patient with cold agglutinin disease. In hematology, red cell agglutination or autoagglutination is a phenomenon in which red blood cells clump together, forming aggregates. It is caused by the surface of the red cells being coated with antibodies.
Agglutinogen is an antigen [1] that causes the formation of agglutinins in the body and leads to agglutination, such as hemagglutination, which involves red blood cells (RBCs). The kind of agglutinogens present on the red blood cells helps determine the blood type of a person.
In cold agglutinin disease, the body produces agglutinins or antibodies that coagulate erythrocytes and lyse them at room temperature or lower. Under normal circumstances, the lifespan of erythrocytes is 120 days after which they are degraded by the spleen. In individuals that have cold agglutinin disease, the lifespan of erythrocytes is shortened.
Though one's body produces peptides naturally, peptides are also found in many food and supplement sources. "All the food we eat is broken down by the body into amino acids," explains Stevenson.
It does this through several mechanisms: [citation needed] IgG-mediated binding of pathogens causes their immobilization and binding together via agglutination ; IgG coating of pathogen surfaces (known as opsonization ) allows their recognition and ingestion by phagocytic immune cells leading to the elimination of the pathogen itself;
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