| GC-MS | Gas chromatography coupled to mass spectrometry |
|---|---|
| GCO | Gas chromatography olfactometry |
| GC-NICI-MS | gas chromatography-negative ion chemical ionisation mass spectrometry |
| GC-C-IRMS | Gas chromatography-combustion-isotope ratio mass spectrometry |
| GC-FID | Gas chromatography-flame ionization detection |
| static gangrene | Moist gangrene due to obstruction in the return circulation. Synonym: venous gangrene. (05 Mar 2000) |
|---|---|
| streptococcus erythrogenic toxin | A culture filtrate of lysogenised group A strains of beta-haemolytic streptococci, erythrogenic when inoculated into the skin of susceptible persons, and neutralised by antibodies that appear during scarlet fever convalescence; three immunological types (A, B, and C) are recognised. Synonym: Dick test toxin, erythrogenic toxin, scarlet fever erythrogenic toxin. (05 Mar 2000) |
| normal toxin | A toxin solution holding exactly 100 lethal doses in 1 ml. (05 Mar 2000) |
| nosocomial gangrene | A chronic ulcer that appears in pressure areas in debilitated patients confined to bed or otherwise immobilised, due to a circulatory defect from the enhanced tissue pressure in high-contact areas, often occurring over a bony prominence (for example sacral decubitus). (27 Sep 1997) |
| decubital gangrene | <dermatology> A chronic ulcer that appears in pressure areas in debilitated patients confined to bed or otherwise immobilised, due to a circulatory defect from the enhanced tissue pressure in high-contact areas, often occurring over a bony prominence (for example sacral decubitus). (27 Sep 1997) |
| symmetrical gangrene | Gangrene affecting the extremities of both sides of the body; it is seen particularly in severe arteriosclerosis, myocardial infarction, and ball-valve thrombus. (05 Mar 2000) |
| diabetic gangrene | Gangrene resulting from arteriosclerosis associated with diabetes. (05 Mar 2000) |
| diagnostic diphtheria toxin | Corynebacterium diphtheriae toxin diluted so that the inoculated dose (0.1 or 0.2 ml) will contain 1/50 th of guinea pig minimal lethal dose. See: Schick test. Synonym: diagnostic diphtheria toxin. (05 Mar 2000) |
| Dick test toxin | A culture filtrate of lysogenised group A strains of beta-haemolytic streptococci, erythrogenic when inoculated into the skin of susceptible persons, and neutralised by antibodies that appear during scarlet fever convalescence; three immunological types (A, B, and C) are recognised. Synonym: Dick test toxin, erythrogenic toxin, scarlet fever erythrogenic toxin. (05 Mar 2000) |
| dinoflagellate toxin | A potent neurotoxin that is thought to act similarly to botulinus toxin by impairing the synthesis or the release of acetylcholine. (05 Mar 2000) |
| diphtheria toxin | <protein> An ab exotoxin (62 kD) coded by _ corynephage of virulent Corynebacterium diphtheriae strains (that can produce a repressor of toxin production). The B subunit binds to receptors on the surface of the target cell and facilitates the entry of the enzymically active A subunit (21 kD) that ADP ribosylates elongation factor 2, thereby halting mRNA translation. (18 Nov 1997) |
| disseminated cutaneous gangrene | A bullous or pustular eruption, of uncertain origin, followed by necrotic ulcers or extensive gangrene in children under 2 years of age; if untreated, death may result from haematogenous infection, such as liver abscess. Synonym: disseminated cutaneous gangrene, ecthyma gangrenosum, pemphigus gangrenosus, rupia escharotica. (05 Mar 2000) |
| dry gangrene | A form of gangrene in which the involved part is dry and shriveled. Synonym: cold gangrene, mummification necrosis, mummification. (05 Mar 2000) |
| intracellular toxin | <protein> Heat stable polysaccharide like toxin bound to a bacterial cell. The term is used more specifically to refer to lipopolysaccharide (LPS) of the outer membrane of gram-negative bacteria. There are three parts to the molecule, the Lipid A (six fatty acid chains linked to two glucosamine residues), the core oligosaccharide (branched chain of ten sugars) and a variable length polysaccharide side chain (up to 40 sugar units in smooth forms) that can be removed without affecting the toxicity (rough LPS). Some endotoxin is probably released into the medium and endotoxin is responsible for many of the virulent effects of gram-negative bacteria. (18 Nov 1997) |
| t-2 toxin | <chemical> (3 alpha,4 beta,8 alpha)-12,13-epoxytrichothec-9-ene-3,4,8,15-tetrol 4,15-diacetate 8-(3-methylbutanoate). A potent mycotoxin produced in feedstuffs by several species of the genus fusarium. It elicits a severe inflammatory reaction in animals and has teratogenic effects. Chemical name: Trichothec-9-ene-3,4,8,15-tetrol, 12,13-epoxy-, 4,15-diacetate 8-(3-methylbutanoate), (3alpha,4beta,8alpha)- (12 Dec 1998) |