| AHA | acetohydroxamic acid; acquired hemolytic anemia; acute hemolytic anemia; American Heart Association;... |
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| AIA | allylisopropylacetamide; amylase inhibitor activity; anti-immunoglobulin antibody; anti-insulin anti... |
| ANA | acetylneuraminic acid; American Narcolepsy Association; American Neurological Association; American ... |
| APA | action potential amplitude; aldosterone-producing adenoma; Ambulatory Pediatric Association; America... |
| ATA | alimentary toxic aleukia; American Thyroid Association; aminotriazole; antithymic activity; antithyr... |
| simian acquired immunodeficiency syndrome | <syndrome> Acquired defect of cellular immunity that occurs naturally in macaques infected with srv serotypes, experimentally in monkeys inoculated with srv or mason-pfiser monkey virus (mpmv), or in monkeys infected with siv. (12 Dec 1998) |
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| simian immunodeficiency virus | <virology> A retrovirus found in monkeys that is closely related to HIV. (09 Oct 1997) |
| immunodeficiency | Inabillity to mount a normal immune response. Immunodeficiency can be due to a genetic disease or acquired as in aids due to HIV. (12 Dec 1998) |
| immunodeficiency disorders | <radiology> B-cell (antibody) deficiency: high-grade pathogens: pneumococcus, strep, H. Flu, chronic sinopulmonary disease, usual survival to adulthood, T-cell (cellular) deficiency: low-grade pathogens: fungi, viruses, Pneumocystic, growth retardation, diarrhoea, delayed anergy, short life-span, susceptible to graft vs. Host (GvH) disease, e.g.: DiGeorge syndrome, Nezelhof syndrome Note: increased risk of malignancy (12 Dec 1998) |
| immunodeficiency syndrome | <syndrome> An immunological deficiency or disorder, of which the chief symptom is an increased susceptibility to infection, the pattern of susceptibility being dependent upon the kind of deficiency. See: immunodeficiency. (05 Mar 2000) |
| immunodeficiency virus, bovine | A species of lentivirus, subgenus bovine lentiviruses (lentiviruses, bovine), found in cattle and causing lymphadenopathy, lymphocytosis, central nervous system lesions, progressive weakness, and emaciation. It has immunological cross-reactivity with other lentiviruses including HIV. (12 Dec 1998) |
| immunodeficiency virus, feline | A species of lentivirus, subgenus feline lentiviruses (lentiviruses, feline) isolated from cats with a chronic wasting syndrome, presumed to be immune deficiency. There is no antigenic relationship between fiv and HIV, nor does fiv grow in human T-cells. (12 Dec 1998) |
| immunodeficiency with elevated IgM | Immunodeficiency with reduced IgG and IgA-bearing cells; there is recurrent pyogenic infection; X-linked in some families. (05 Mar 2000) |
| immunodeficiency with hypoparathyroidism | diGeorge syndrome |
| feline acquired immunodeficiency syndrome | <syndrome> Acquired defect of cellular immunity that occurs in cats infected with feline immunodeficiency virus (fiv) and in some cats infected with feline leukaemia virus (felv). (12 Dec 1998) |
| feline immunodeficiency virus | A lentivirus causing acquired immunodeficiency in cats. (05 Mar 2000) |
| affinity antibody | The measure of the interaction between molecules such as a receptor and its ligand. This interaction is reversible. (05 Mar 2000) |
| agglutinating antibody | 1. An antibody that causes clumping or agglutination of the bacteria or other cells which either stimulated the formation of the agglutinin, or contain immunologically similar, reactive antigen. Synonym: agglutinating antibody, immune agglutinin. 2. A substance, other than a specific agglutinating antibody, that causes organic particles to agglutinate, commonly qualified, e.g., plant agglutinin. (05 Mar 2000) |
| anaphylactic antibody | Antibody that has an affinity for certain kinds of cells, in addition to and unrelated to its specific affinity for the antigen that induced it, because of the properties of the Fc portion of the heavy chain. See: heterocytotropic antibody, homocytotropic antibody, cytotropic antibody test. Synonym: anaphylactic antibody, cytophilic antibody. (05 Mar 2000) |
| anti-basement membrane antibody | Autoantibodies to renal glomerular basement membrane antigens. (05 Mar 2000) |