| OCG | omnicardiogram; oral cholecystogram |
|---|---|
| OCH | oral contraceptive hormone |
| OCM | oral contraceptive medication |
| OCS | occipital condyle syndrome; Ondine's curse syndrome; open canalicular system; oral contraceptive ste... |
| OCT | object classification test; optimal cutting temperature; oral contraceptive therapy; ornithine carba... |
| vitamin K | <biochemistry> A fat soluble vitamin that plays an important role in blood clotting. (27 Sep 1997) |
|---|---|
| vitamin K1 | Vitamin K1 or K1(20); 2-methyl-3-phytyl-1,4-naphthoquinone; 3-phytylmenaquinone; isolated from alfalfa;also prepared synthetically; major form of vitamin K found in plants. Synonym: phytomenadione, phytonadione, vitamin K1, vitamin K1(20). (05 Mar 2000) |
| vitamin K2 | Hexaprenylmenaquinone; prenylmenaquinone-6; 2-methyl-3-hexaprenyl-1,4-naphthoquinone;isolated from putrified fish meal; potency is about 60% of that of phylloquinone (vitamin K1). Synonym: farnoquinone, vitamin K2, vitamin K2(30). (05 Mar 2000) |
| vitamin K2(35) | Menaquinone-6 with a 3-heptaprenyl side chain. Synonym: vitamin K2(35). (05 Mar 2000) |
| vitamin K3 | A fat soluble vitamin that plays an important role in blood clotting. (27 Sep 1997) |
| vitamin K4 | 2-Methyl-1,4-naphthohydroquinone diacetate;menadiol acetylated at both OH groups; a prothrombogenic vitamin. Synonym: acetomenaphthone, vitamin K4. (05 Mar 2000) |
| vitamin K5 | 4-amino-2-methyl-1-naphthol;an antihemorrhagic vitamin. (05 Mar 2000) |
| vitamin k deficiency | A nutritional condition produced by a deficiency of vitamin k in the diet, characterised by an increased tendency to haemorrhage (haemorrhagic diathesis). Such bleeding episodes may be particularly severe in newborn infants. (12 Dec 1998) |
| vitamin K epoxidase | <enzyme> Reductase is the reverse reaction of the epoxidase Registry number: EC 1.14.99.- Synonym: vitamin k epoxide reductase, menadione epoxide reductase, vitamin k 2,3-epoxide reductase, phylloquinone epoxide reductase, vitamin ko reductase (26 Jun 1999) |
| vitamin K unit | See: Dam unit. (05 Mar 2000) |
| vitamin P | A mixture of bioflavonoids extracted from plants (especially citrus fruits). It reduces the permeability and fragility of capillaries and is useful in the treatment of certain cases of purpura that are resistant to vitamin C therapy. See: hesperidin, quercetin, rutin. Synonym: capillary permeability factor, citrin, permeability vitamin. (05 Mar 2000) |
| vitamin PP | A precursor of NAD, that is a product of the oxidation of nicotine. (18 Nov 1997) |
| vitamin u | <chemical> A vitamin found in green vegetables. It is used in the treatment of peptic ulcers, colitis, and gastritis and has an effect on secretory, acid-forming, and enzymatic functions of the intestinal tract. Pharmacological action: anti-ulcer agents, gastrointestinal agents. Chemical name: Sulfonium, (3-amino-3-carboxypropyl)dimethyl-, chloride, (S)- (12 Dec 1998) |
| metabolised vitamin D milk | Milk produced by feeding irradiated yeast to cows; standardised to contain not less than 400 USP units per quart. (05 Mar 2000) |
| permeability vitamin | A mixture of bioflavonoids extracted from plants (especially citrus fruits). It reduces the permeability and fragility of capillaries and is useful in the treatment of certain cases of purpura that are resistant to vitamin C therapy. See: hesperidin, quercetin, rutin. Synonym: capillary permeability factor, citrin, permeability vitamin. (05 Mar 2000) |