| nitrobenzoates | Benzoic acid or benzoic acid esters substituted with one or more nitro groups. (12 Dec 1998) |
|---|---|
| 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) |
| 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) |
| 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) |
| nitrocalcite | <chemical> Nitrate of calcium, a substance having a grayish white colour, occuring in efforescences on old walls, and in limestone caves, especially where there exists decaying animal matter. Origin: Nitro- + calcite. Source: Websters Dictionary (01 Mar 1998) |
| nitrocarbol | <chemistry> See Nitromethane. Origin: Nitro- + carbon + L. Oleum oil. Source: Websters Dictionary (01 Mar 1998) |
| nitrocellulose | A nitrogen-sequence or antibody. (09 Oct 1997) |
| nitrocellulose nitroesterase | <enzyme> Hydrolyzes nitroester bands of nitrocellulose to give nitrate ions Registry number: EC 3.1.- (26 Jun 1999) |
| nitrocellulose paper | <apparatus> Paper with a high non-specific absorbing power for biological macromolecules. Very important as a receptor in blot transfer methods. Bands are transferred from a chromatogram or electropherogram either by blotting on nitrocellulose sheets or by electrophoretic transfer. The replica can then be used for sensitive analytical detection methods. (18 Nov 1997) |
| nitrochloroform | CCl3NO2; trichloronitromethane;a toxic lung irritant and lacrimatory gas; it also causes vomiting, colic, and diarrhoea, and therefore is called vomiting gas. Synonym: nitrochloroform. (05 Mar 2000) |
| nitroform | <chemistry> A nitro derivative of methane, analogous to chloroform, obtained as a colourless oily or crystalline substance, CH.(NO2)3, quite explosive, and having well-defined acid properties. Source: Websters Dictionary (01 Mar 1998) |
| nitrofurans | <pharmacology> Antimicrobials (e.g., nitrofurazone) effective against Gram-positive and Gram-negative organisms. (05 Mar 2000) |
| nitrofurantoin | <chemical> A urinary anti-infective agent effective against most gram-positive and gram-negative organisms. Although sulfonamides and antibiotics are usually the agents of choice for urinary tract infections, nitrofurantoin is widely used for prophylaxis and long-term suppression. Pharmacological action: anti-infective agents, urinary. Chemical name: 2,4-Imidazolidinedione, 1-(((5-nitro-2-furanyl)methylene)amino)- (12 Dec 1998) |
| nitrofurantoin polyneuropathy | <neurology> An axon loss polyneuropathy, often severe, seen in some patients treated with nitrofurantoin, particularly patients with chronic renal failure. (05 Mar 2000) |
| nitrofurazone | <chemical> 2-((5-nitro-2-furanyl)methylene)hydrazinecarboxamide. A topical anti-infective agent effective against gram-negative and gram-positive bacteria. It is used for superficial wounds, burns, ulcers, and skin infections. Nitrofurazone has also been administered orally in the treatment of trypanosomiasis. Pharmacological action: anti-infective agents, local, anti-infective agents, urinary, trypanocidal agents. Chemical name: Hydrazinecarboxamide, 2-((5-nitro-2-furanyl)methylene)- (12 Dec 1998) |