| auto- | Aut- <prefix> Prefixes meaning self, same. Origin: G. Autos, self (05 Mar 2000) |
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| auto-oxidation | The direct combination of a substance with molecular oxygen at ordinary temperatures. Synonym: autoxidation. (05 Mar 2000) |
| auto-oxidizable | Denoting substances that react directly with oxygen (e.g., b haemochromogen in cytochrome) and do not require the action of dehydrogenases. (05 Mar 2000) |
| autoactivation | A reaction in which one or more of the products formed acts to catalyze the reaction; beginning slowly, the rate of such a reaction rapidly increases. Compare: chain reaction. Synonym: autoactivation. (05 Mar 2000) |
| autoagglutination | 1. Non-specific agglutination or clumping together of cells (e.g., bacteria, erythrocytes) due to physical-chemical factors. 2. The agglutination of an individual's red blood cells in his own serum, as a consequence of specific autoantibody. (05 Mar 2000) |
| autoagglutinin | An agglutinating autoantibody. Anti-Pr cold autoagglutinin, a cold autoagglutinin specific for the Pr (protease-sensitive) antigen of erythrocytes. Cold autoagglutinin, a heterogeneous group of autoantibodies that react at temperatures below 37캜, often most actively at 4캜; most are the IgM class of immunoglobulins with affinity for the Ii system of erythrocyte antigens, but some are anti-Pr cold autoagglutinin's; cold autoagglutinin's may be associated with infection (e.g., primary atypical pneumonia, infectious mononucleosis and other virus infections, certain protozoan infections) and in such instances usually are not active in vivo. (05 Mar 2000) |
| autoallergic | Pertaining to autoallergy. (05 Mar 2000) |
| autoallergization | Induction of autoallergy. (05 Mar 2000) |
| autoallergy | An altered reactivity in which antibodies (autoantibodies) are produced against an individual's own tissues, causing a destructive rather than a protective effect. Synonym: autoimmunity. (05 Mar 2000) |
| autoanalysis | Attempted analysis, or psychoanalysis, of one's self. Synonym: self-analysis. (05 Mar 2000) |
| autoanalyzer | An instrument capable of conducting analyses automatically; commonly used in chemical analyses. Sequential multichannel autoanalyzer (SMA), an automated instrument capable of performing multiple (usually chemical) analyses simultaneously by propelling samples and reagents in continuous flow fashion along tubes to the detector mechanisms. (05 Mar 2000) |
| autoanaphylaxis | Old term for certain kinds of autoimmunity. (05 Mar 2000) |
| autoantibodies | Antibodies directed against self antigens, i.e., against a normal tissue constituent. An antibody (immunoglobulin) formed in response to, and reacting against, one of the individual's own normal antigenic endogenous body constituents. (12 Dec 1998) |
| autoantibody | Antibody that reacts with an antigen that is a normal component of the body. Obviously this can lead to some problems and autoimmunity has been proposed as a causative factor in a number of diseases such as rheumatoid arthritis. See: systemic lupus erythematosus, Hashimoto's thyroiditis, myasthenia gravis. (18 Nov 1997) |
| autoanticomplement | An anticomplement that is formed in the body of an animal and inhibits or destroys the complement of the same animal. (05 Mar 2000) |