| HP | halogen phosphorus; handicapped person; haptoglobin; hard palate; Harvard pump; health profession(al... |
|---|---|
| IPR | insulin production rate; intraparenchymal resistance; ipratropium |
| MPR | mannose 6-phosphate receptor; marrow production rate; massive preretinal retraction; maximum pulse r... |
| PR | by way of the rectum [Lat. per rectum]; far point [of accommodation] [Lat. punctum remotum]; palindr... |
| Pr | praseodymium; prednisolone; presbyopia; primary; prism; production rate [of steroid hormones]; prola... |
| fluorescent antibody | Immunoglobulin molecule which as been coupled with a fluorescent molecule so that it exhibits fluorescence. (09 Oct 1997) |
|---|---|
| fluorescent antibody technique | Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (fluorescent antibody technique, direct) or an indirect method, by formation of antigen-antibody complex which is then labelled with fluorescein-conjugated anti-immunoglobulin antibody (fluorescent antibody technique, indirect). The tissue is then examined by fluorescence microscopy. (12 Dec 1998) |
| fluorescent antibody technique, direct | A form of fluorescent antibody technique utilizing a fluorochrome conjugated to an antibody, which is added directly to a tissue or cell suspension for the detection of a specific antigen. (12 Dec 1998) |
| fluorescent antibody technique, indirect | A form of fluorescent antibody technique commonly used to detect serum antibodies and immune complexes in tissues and microorganisms in specimens from patients with infectious diseases. The technique involves formation of an antigen-antibody complex which is labelled with fluorescein-conjugated anti-immunoglobulin antibody. (12 Dec 1998) |
| fluorescent antibody techniques | Lab techniques for locating antigens in a prepared tissue sample by using antibodies with fluorescent labels which will bind to the antigens of interest. (09 Oct 1997) |
| fluorescent antibody titre | An indirect method of measuring the concentration of an antibody in serum through the detection of fluorescent light emitted in a chemical reaction. (27 Sep 1997) |
| fluorescent antinuclear antibody test | FANA test, a test for antinuclear antibody components; used, in particular, for the diagnosis of collagen-vascular diseases. (05 Mar 2000) |
| fluorescent treponemal antibody-absorption test | <investigation> A sensitive and specific serologic test for syphilis. It is more specific than the VDRL assay. The patient's serum is diluted to remove non-specific antibodies and then mixed on a glass slide with Nichol's strain of Treponema pallidum. If antibodies are present in the patient's serum they bind to the antigen and the bound antibodies are detected with fluoresceinated antihuman gamma-globulin antibody. Synonym: FTA-ABS test. (12 Sep2002) |
| Forssman antibody | A heterogenetic antibody specific for the Forssman group of heterogenetic antigens. Synonym: heterophil antibody, heterophile antibody. (05 Mar 2000) |
| Forssman antigen-antibody reaction | The combination of Forssman antibody with heterogenetic antigen of the Forssman type, as in the agglutination of sheep erythrocytes (which contain Forssman antigen) by serum from a person with infectious mononucleosis which contains Forssman antibody. Synonym: Forssman reaction. (05 Mar 2000) |
| lyme disease antibody | A blood test which measures for the presence of Lyme disease antibodies. A nonreactive or serum titre of less than 1:256 is normal. A rising titre over time is more diagnostic. False positives due occur in those with rheumatoid arthritis and lupus. (27 Sep 1997) |
| Abbe theory of image formation | <optics, physics> Abbe's theory is based on the fact that a non-self-luminous particle, which is illuminated by an extraneous source, gives rise to diffracted light rays, in addition to the dioptric pencil. He stated that to form a good microscopical image as many of the diffracted rays as possible should be intercepted by the objective. With closely ruled lines, his theory is easily demonstrated by observing the back lens of the objective, for here the diffracted rays can be observed directly if the aperture diaphragm is closed. It can be shown that, when the illumination is arranged to exclude the diffracted images, resolution is lost. (11 Mar 1998) |
| adsorption theory of narcosis | That a drug becomes concentrated at the surface of the cell as a result of adsorption, and thus alters permeability and metabolism. (05 Mar 2000) |
| Altmann's theory | A theory that protoplasm consists of granular particles (called bioblasts) that are clustered and enclosed in indifferent matter. (05 Mar 2000) |
| Arrhenius-Madsen theory | That the reaction of an antigen with its antibody is a reversible reaction, the equilibrium being determined according to the law of mass action by the concentrations of the reacting substances. (05 Mar 2000) |