| ELAM | endothelial leukocyte adhesion molecule |
|---|---|
| LAA | left atrial appendage; left atrial area; leukemia-associated antigen; leukocyte ascorbic acid |
| LAD | lactic acid dehydrogenase; left anterior descending [artery]; left axis deviation; leukocyte adhesio... |
| LAF | laminar air flow; Latin American female; leukocyte-activating factor; lymphocyte-activating factor |
| LAG | labiogingival; leukocyte antigen group; linguo-axiogingival; lymphangiogram; lymphocyte activation g... |
| I region associated antigens | Class II major histocompatibility (MHC) antigens. (18 Nov 1997) |
|---|---|
| O antigens | Tetra and penta saccharide repeat units of the cell walls of gram-negative bacteria. They are a component of lipopolysaccharide. (18 Nov 1997) |
| oncofetal antigens | Tumour-associated antigen's present in foetal tissue but not in normal adult tissue, including alpha-fetoprotein and carcinoembryonic antigen. (05 Mar 2000) |
| T antigens | Tumour antigens associated wtih replication and transformation by certain DNA tumour viruses, including adenoviruses and papovaviruses. See: beta-haemolytic streptococci, tumour antigens. (05 Mar 2000) |
| epstein-barr virus nuclear antigens | Nuclear antigens encoded by epstein-barr virus genes. at least six nuclear antigens have been identified but their mechanism of action and role in B-cell transformation is still unknown. (12 Dec 1998) |
| tumour antigens | Antigens that may be frequently associated with tumours or may be specifically found on tumour cells of the same origin (tumour specific), tumour antigens may also be associated with replication and transformation by certain DNA tumour viruses, including adenoviruses and papovaviruses. Synonym: neoantigens. See: T antigens. (05 Mar 2000) |
| tumour-specific transplantation antigens | Surface antigen's of DNA tumour virus-transformed cells, which elicit an immune rejection of the virus-free cells when transplanted into an animal that has been immunised against the specific cell-transforming virus. (05 Mar 2000) |
| Jk antigens | See Blood Groups appendix. (05 Mar 2000) |
| K antigens | <haematology, immunology> Blood type classification based on a group of erythrocyte antigens that is characterised by an antibody called anti-K. Multiple erythrocytic antigens that comprise at least three pairs of alternates and amorphs, determined by one complex gene or possibly several genes at closely linked loci. The system is important in transfusion reactions. Its expression involves the X chromosome. (21 Jun 2000) |
| Le antigens | <haematology> A pair of blood group activities associated with the A, B, H substances. Lewis Lea is a separate gene, whereas Leb arises from the combined activity of the enzymes specified by Le(a) and H genes. (18 Nov 1997) |
| Lu antigens | A complex blood group system having pairs of alternate antigens and amorphic genes, but also subject to a dominant independently segregating repressor. (12 Dec 1998) |
| Lyt antigens | A group of alloantigens that are present on either T or B murine lymphocytes, e.g., Lyt 2,3 is equivalent to human CD8. (05 Mar 2000) |
| adenoviruses, human | Species of the genus mastadenovirus, causing a wide range of diseases in humans. Infections are mostly asymptomatic, but can be associated with diseases of the respiratory, ocular, and gastrointestinal systems. (12 Dec 1998) |
| adenovirus infections, human | Respiratory and conjunctival infections caused by 33 identified serotypes of human adenoviruses. (12 Dec 1998) |
| bites, human | Bites inflicted by humans. (12 Dec 1998) |