| 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) |
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| 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) |
| acquired platelet function defect | <haematology> Platelet function can be affected by a number of different disease processes including polycythaemia vera, leukaemia, myelofibrosis, renal failure, multiple myeloma and some medications (for example penicillins, salicylates, phenothiazines). Disturbed blood clotting can be manifested by: easy bruising, bleeding gums, nosebleeds, abnormal vaginal bleeding, rectal bleeding, skin rash, vomiting blood, coughing up blood or blood in the urine. A measure of bleeding time and coagulation profile will be part of the evaluation. (29 Dec 1997) |
| allomeric function | The combined function of the several segments of the spinal cord and medulla, communicating with each other by means of the white matter. (05 Mar 2000) |
| aperture function | <microscopy> In a diffraction-limited optical system, the function that determines the relationship between the image and each point in the object. Modifying the aperture function changes the image according to the modified Fourier-filtering (or optical filtration) property of the aperture. (05 Aug 1998) |
| arousal function | The ability of a sensory event to arouse the cortex to vigilance or readiness. (05 Mar 2000) |
| atrial function | The haemodynamic and electrophysiological action of the atria. (12 Dec 1998) |
| atrial function, left | The haemodynamic and electrophysiological action of the left atrium. (12 Dec 1998) |
| atrial function, right | The haemodynamic and electrophysiological action of the right atrium. (12 Dec 1998) |