| NBT | nitroblue tetrazolium; non-tumor-bearing; normal breast tissue |
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| NTD | neural tube defect; nitroblue tetrazolium dye; noise tone difference; 5'-nucleotidase |
| PNBT | p-nitroblue tetrazolium |
| NBT test | Nitro-Blue Tetrazolium (dye reduction) test ; Chronic Granulomatous DiseaseÁø´Ü¿¡ »ç¿ë... |
| TR | recovery time; rectal temperature; repetition time; residual tuberculin; terminal repeat; tetrazoliu... |
| NBT | Nitroblue tetrazolium dye |
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| NBT | Nitroblue tetrazolium test |
| TTC | 2'3'5-triphenyl tetrazolium chloride |
| TTC | 5-triphenyl tetrazolium chloride |
| MTT | Methyl thiazol tetrazolium |
| nitroblue tetrazolium reduction | <chemical> Nitroblue tetrazolium, a yellow dye, is taken up by phagocytosing neutrophils and reduced to insoluble formazan, which is deep blue, if the metabolic burst is normal. Reduction does not take place in chronic granulomatous disease. (18 Nov 1997) |
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| nitroblue tetrazolium | <chemical> 3,3'-(3,3'-dimethoxy-4,4'-biphenylene)bis (2-(p-nitrophenyl)-5-phenyl-2h-tetrazolium. Colourless to yellow dye that is reducible to blue or black formazan crystals by certain cells; formerly used to distinguish between nonbacterial and bacterial diseases, the latter causing neutrophils to reduce the dye; used to confirm diagnosis of chronic granulomatous disease. Pharmacological action: indicators and reagents. Chemical name: 2H-Tetrazolium, 3,3'-(3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2-(4-nitrophenyl)-5-phenyl-, dichloride (12 Dec 1998) |
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| nitroblue tetrazolium test | A test to detect the phagocytic ability of polymorphonuclear leukocytes by measuring the capacity of the oxygen-dependent leukocytic bactericidal system. (05 Mar 2000) |
| amine tetrazolium reductase | <enzyme> Tetrazolium salts as hydrogen acceptors Registry number: EC 1.4.- Synonym: tryptamine dehydrogenase, monoamine tetrazolium reductase, monoamine dehydrogenase (26 Jun 1999) |
| NADH tetrazolium reductase | <enzyme> Catalyses the reduction of tetrazolium compounds in the presence of NADH. Registry number: EC 1.6.- (12 Dec 1998) |
| NADPH-tetrazolium reductase | <enzyme> Reported to possess activity identical with NADPH cytochrome c reductase EC 1.6.2.4 Registry number: EC 1.6.2.- Synonym: NADPH-neotetrazolium reductase, NADPH-nbt reductase (26 Jun 1999) |
| tetrazolium | Any of a group of organic salts having the general structure which on reduction (cleaving the 2,3 bond) yields a coloured insoluble formazan; used as a reagent in oxidative enzyme histochemistry. Nitroblue tetrazolium (NBT), a pale yellow dye that is converted on reduction to coloured formazans in the histochemical demonstration of dehydrogenases; used in haematology for staining of neutrophils to help indicate the presence of bacterial infections. (05 Mar 2000) |
| tetrazolium salts | <chemical> Quaternary salts derived from tetrazoles. They are used in tests to distinguish between reducing sugars and simple aldehydes, for detection of dehydrogenase in tissues, cells, and bacteria, for determination of corticosteroids, and in colour photography. Pharmacological action: indicators and reagents. (12 Dec 1998) |
| acetyl reduction assay | <investigation> A technique for measuring the nitrogen fixation activity in photosynthetic organisms. It uses a flame ionisation detector and a gas chromatography apparatus to determine the reduction of acetylene to ethylene by the enzyme nitrogenase. (06 May 1997) |
| reduction | <orthopaedics, surgery> The correction of a fracture, dislocation or hernia. (18 Nov 1997) |
| reduction deformity | Congenital absence or attenuation of one or more body parts; usually of the limbs or limb components. (05 Mar 2000) |
| reduction division | The first cell division in meiosis, the process by which germ cells are formed. A unique event in which the chromosome number is reduced from diploid (46 chromosomes) to haploid (23 chromosomes). Also called first meiotic division or first meiosis. (12 Dec 1998) |
| reduction en masse | Reduction of hernial sac and contents, so that intestinal obstruction is still present. (05 Mar 2000) |
| reduction mammaplasty | Plastic surgery of the breast to reduce its size and (frequently) to improve its shape and position. (05 Mar 2000) |
| reduction nucleus | A nucleus that degenerates in the cell during the changes incident to fertilization. (05 Mar 2000) |
| reduction of chromosomes | The process during meiosis whereby one member of each homologous pair of chromosomes is distributed to a sperm or ovum; the diploid set of chromosomes (46 in humans) is thus reduced to the haploid set in each gamete; union of the sperm and ovum then restores the diploid or somatic number in the one-cell zygote. (05 Mar 2000) |
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