Medical dictionary. 2011.
ABO blood group system — ABO redirects here. For other uses, see ABO (disambiguation). H substance redirects here. For use in inflammation, see histamine. ABO blood group antigens present on red blood cells and IgM antibodies present in the serum The ABO blood group… … Wikipedia
Antigen — Each antibody binds to a specific antigen; an interaction similar to a lock and key. An antigen is a foreign molecule that, when introduced into the body, triggers the production of an antibody by the immune system. The immune system will then… … Wikipedia
Major histocompatibility complex — The major histocompatibility complex (MHC) is a large genomic region or gene family found in most vertebrates that encodes MHC molecules. MHC molecules play an important role in the immune system and autoimmunity. Proteins are continually… … Wikipedia
Superantigen — [ thumb|Figure 1. Schematic of Superantigen stimulation compared to normal antigen presentation and activation [2] .] Superantigens (SAgs) are secreted proteins (exotoxins) that exhibit highly potent lymphocyte transforming (mitogenic) activity… … Wikipedia
Molecular mimicry — is defined as the theoretical possibility that sequence similarities between foreign and self peptides are sufficient to result in the cross activation of autoreactive T or B cells by pathogen derived peptides. Despite the promiscuity of several… … Wikipedia
GYPA — Glycophorin A (MNS blood group), also known as GYPA, is a human gene.cite web | title = Entrez Gene: GYPA glycophorin A (MNS blood group)| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=2993| accessdate = ] … Wikipedia
Immune system — A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). An immune system is a system of biological structures and processes within an organism that protects against disease by identifying and… … Wikipedia
List of biology topics — Biology is the study of life and its processes. Biologists study all aspects of living things, including all of the many life forms on earth and the processes in them that enable life. These basic processes include the harnessing of energy, the… … Wikipedia
GYPB — Glycophorin B (MNS blood group), also known as GYPB, is a human gene.cite web | title = Entrez Gene: GYPB glycophorin B (MNS blood group)| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=2994| accessdate = ] … Wikipedia
drift — 1. A gradual movement, as from an original position. 2. A gradual change in the value of a random variable over time as a result of various factors, some random and some systematic effects of trend, manipulation, etc. antigenic d. the … Medical dictionary
