| thiamin hydrochloride unit | The antineuritic activity of 0.003 mg of the standard crystalline vitamin B1 hydrochloride. Synonym: vitamin B1 hydrochloride unit. (05 Mar 2000) |
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| thiamin hydrochloride | A coenzyme used in the prevention of beriberi and other conditions associated with a deficiency of thiamin in the diet. Synonym: aneurine hydrochloride. (05 Mar 2000) |
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| vitamin B1 hydrochloride unit | The antineuritic activity of 0.003 mg of the standard crystalline vitamin B1 hydrochloride. Synonym: vitamin B1 hydrochloride unit. (05 Mar 2000) |
| alpha-lactyl-thiamin pyrophosphate | An intermediate formed in the oxidative decarboxylation of pyruvate. Compare: pyruvate dehydrogenase (lipoamide). Synonym: alpha-lactyl-thiamin pyrophosphate. (05 Mar 2000) |
| thiamin | A member of the water-soluble B vitamin group, necessary for energy production and carbohydrate metabolism. Deficiency is known as beriberi. (27 Sep 1997) |
| thiamin deficiency | An endemic form of polyneuritis (nerve inflammation), due to an unbalanced diet, with a deficiency of vitamin B1(thiamin). Common in those who chronically abuse alcohol. Synonym: beriberi. (27 Sep 1997) |
| thiamin mononitrate | Same action as thiamin hydrochloride. (05 Mar 2000) |
| thiamin oxidase | <enzyme> Converts thiamine to thiamine acetic acid Registry number: EC 1.1.3.23 Synonym: thiamine dehydrogenase, thiamin dehydrogenase (26 Jun 1999) |
| thiamin pyridinylase | <enzyme> An enzyme catalyzing transfer of a pyridine or other bases into the position of the pyrimidine in thiamin; e.g., thiamin reacting with pyridine produces heteropyrithiamin and 4-methyl-5-(2'-hydroxyethyl)-thiazole. Synonym: pyrimidine transferase, thiaminase I. (05 Mar 2000) |
| thiamin pyrophosphate | The diphosphoric ester of thiamin, a coenzyme of several (de)carboxylases, transketolases, and alpha-oxoacid dehydrogenases. Synonym: aneurine pyrophosphate, cocarboxylase, diphosphothiamin. (05 Mar 2000) |
| thiamin pyrophosphokinase | <enzyme> An enzyme that catalyses the formation of thiamine pyrophosphate from ATP and thiamine. Chemical name: ATP:thiamine pyrophosphotransferase Registry number: EC 2.7.6.2 (12 Dec 1998) |
| thiamin-triphosphatase | <enzyme> An enzyme present in nerve tissue. It catalyses reversibly the formation of thiamine diphosphate and orthophosphate from thiamine triphosphate. Chemical name: Thiamin-triphosphate phosphohydrolase Registry number: EC 3.6.1.28 (12 Dec 1998) |
| absolute unit | A unit whose value is constant regardless of place or time and not derived from dependent on gravitation. (05 Mar 2000) |
| alexin unit | The smallest amount (highest dilution) of complement that will cause haemolysis of a unit of red blood cells in the presence of a haemolysin unit. Synonym: alexin unit. (05 Mar 2000) |
| Allen-Doisy unit | The quantity of oestrogen capable of producing in a spayed mouse a characteristic change in the vaginal epithelium, namely, disappearance of leukocytes and appearance of cornified cells, as determined by a vaginal smear; equal approximately to one-half of an estrone unit. Synonym: mouse unit. (05 Mar 2000) |
| amboceptor unit | haemolysin unit |