| high-resolution banding | Banding, especially in prophase, which increases the clarity and number of discernible chromosome bands. (05 Mar 2000) |
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| pulmonary artery banding | A surgical method of decreasing pulmonary blood flow and thereby volume overload of the left ventricle, alleviating CHF in certain congenital heart defects. (05 Mar 2000) |
| NOR-banding | A procedure which utilises a silver stain that preferentially accumulates in the nucleoli-organizing regions, i.e., the satellite regions of the acrocentric chromosomes. (05 Mar 2000) |
| Q-banding | <cell biology, technique> A fluorescent stain for chromosomes which produces specific banding patterns for each pair of homologous chromosomes. The acridine dye derivative, quinacrine hydrochloride, or other derivatives like quinacrine mustard dihydrochloride produces a green-yellow fluorescence at pH 4.5 in chromosome segments rich in constitutive heterochromatin with deoxyadenylate-deoxythymidilate (A-T) bases of DNA. The centromeric regions of human chromosomes 3, 4, and 13 are specifically stained, as are satellites of some acrocentric chromosomes and the end of the long arm of the Y chromosome. Banding patterns are similar to those obtained with G-banding stain and similar fluorescent stain results are seen with the antibiotics adriamycin and daunomycin, as well as the tertiary dyes butyl proflavine and dapi, and the bisbenzimidazole dye hoechst 33258. See: banding patterns, Q bands, quinacrine. Synonym: quinacrine chromosome banding stain. (12 Jul 2000) |
| quinacrine chromosome banding stain | q-banding stain |
| telomeric R-banding stain | <technique> A modified R-banding stain in which the telomeres become strongly stained and faint R-banding still occurs over the rest of the chromosomes; uses air-dried slides, aging for several days, and staining in hot phosphate-buffered Giemsa stain. (05 Mar 2000) |
| Trusler's rule for pulmonary artery banding | A method that gives guidance as to the correct tightness of the band; the degree of banding for a complex congenital cardiac anomaly with bidirectional shunting less than that for simple ones. (05 Mar 2000) |
| trypsin G-banding stain | <technique> A unique chromosome staining technique, used in human cytogenetics to identify individual chromosomes, which produces characteristic bands. It utilises acetic acid fixation, air drying, denaturing chromosomes mildly with proteolytic enzymes, salts, heat, detergents, or urea, and finally Giemsa stain; chromosome bands appear similar to those fluorochromed by Q-banding stain. Synonym: Giemsa chromosome banding stain. (05 Mar 2000) |
| cancer, gastric | Cancer of the stomach, the major organ that holds food for digestion. Stomach cancer (gastric cancer) can develop in any part of the stomach and spread to other organs. Stomach ulcers do not appear to increase a person's risk of developing stomach cancer. Symptoms of stomach cancer are often vague, such as loss of appetite and weight. The cancer is diagnosed with a biopsy of stomach tissue during a procedure called an endoscopy. (12 Dec 1998) |
| vagotomy, proximal gastric | Vagal denervation of that part of the stomach lined with acid secreting mucosa. Since the procedure leaves the vagal branches to the antrum and pylorus intact, it circumvents gastric drainage required with truncal vagotomy techniques. (12 Dec 1998) |
| gastric | <anatomy> Of or relating to the stomach. (09 Oct 1997) |
| gastric acid | Hydrochloric acid present in gastric juice. (12 Dec 1998) |
| gastric acidity determination | Gastric analysis for determination of free acid or total acid. (12 Dec 1998) |
| gastric algid malaria | See: algid malaria. Induced malaria, malaria acquired by artificial means, e.g., via blood transfusion, common syringes, or malariotherapy. Intermittent malaria, a malarial fever, usually of the tertian or quartan type, in which there is complete apyrexia, with absence of the other symptoms, in the intervals between the paroxysms. (05 Mar 2000) |
| gastric analysis | Measurement of pH and acid output of stomach contents; basal acid output can be determined by collecting the overnight gastric secretion or by a 1-hr collection; maximal acid output is determined following injection of histamine; output is measured by titration with a strong base. (05 Mar 2000) |