thiamin


thiamin
A heat-labile and water-soluble vitamin contained in milk, yeast, and in the germ and husk of grains; also artificially synthesized; essential for growth; a deficiency of t. is associated with beriberi and Wernicke-Korsakoff syndrome. SYN: aneurine, antiberiberi factor, antiberiberi vitamin, antineuritic factor, antineuritic vitamin, thiamine, vitamin B1. [thia- + vitamin]
- t. hydrochloride a coenzyme used in the prevention of beriberi and other conditions associated with a deficiency of t. in the diet. SYN: aneurine hydrochloride.
- t. mononitrate same action as t. hydrochloride.
- t. pyridinylase an enzyme catalyzing transfer of a pyridine or other bases into the position of the pyrimidine in t.; e.g., t. reacting with pyridine produces heteropyrithiamin and 4-methyl-5-(2′-hydroxyethyl)thiazole. SYN: pyrimidine transferase, thiaminase I.
- t. pyrophosphate (TPP) the diphosphoric ester of t., a coenzyme of several (de)carboxylases, transketolases, and α-oxoacid dehydrogenases. SYN: aneurine pyrophosphate, cocarboxylase, diphosphothiamin.

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n.

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thi·a·min (thiґə-min) thiamine.

Medical dictionary. 2011.

Look at other dictionaries:

  • Thiamin — Thiamin, Vitamin B1, zu den wasserlöslichen Vitaminen gehörende, nach Umsetzung mit ATP als Thiamindiphosphat das Coenzym von Carboxylasen und Aldehydtransferasen bildende Verbindung aus zwei heterozyklischen Ringen. Es wirkt insbesondere bei der …   Deutsch wörterbuch der biologie

  • thiamin — also thiamine, alternative name for vitamin B1, 1937, coined by Dr. R.R. Williams from thio , indicating the presence of sulfur, comb. form of Gk. theion sulfur, + AMINE (Cf. amine), indicating the amino group. Or the second element might be from …   Etymology dictionary

  • thiamin — UK [ˈθaɪəmɪn] / US or thiamine UK [ˈθaɪəmiːn] / US [ˈθaɪəˌmɪn] noun [uncountable] medical a natural chemical in many types of food that your body uses to make your nerves work correctly. It belongs to the vitamin B group …   English dictionary

  • Thiamin — chembox ImageFile=Thiamin.svg ImageSize=270px ImageFile2=Thiamine 3D vdW.png IUPACName=2 [3 [(4 amino 2 methyl pyrimidin 5 yl)methyl] 4 methyl thiazol 5 yl] ethanol OtherNames= Section1= Chembox Identifiers CASNo=59 43 8 PubChem=1130 SMILES= [Cl… …   Wikipedia

  • Thiamin — Strukturformel Struktur von Thiaminchlorid …   Deutsch Wikipedia

  • thiamin — or vitamin B1 Organic compound, part of the vitamin B complex, necessary in carbohydrate metabolism. It carries out these functions in its active form, as a component of the coenzyme thiamin pyrophosphate. Its molecular structure includes a… …   Universalium

  • Thiamin — Vitamin B1 * * * Thi|a|min 〈n. 11; internationaler Freiname für〉 Vitamin B1 * * * Thi|a|min [vermutlich zu Thiazol u. Pyrimidin], das; s: Syn.: Vitamin B1, (veraltet:) Aneurin: Trivial u. Freiname für eine in pflanzlichem u. tierischem Gewebe… …   Universal-Lexikon

  • thiamin — noun see thiamine …   New Collegiate Dictionary

  • Thiamin — Thi|a|min 〈n.; Gen.: s, Pl.: e; Biochemie; internat. Freiname für〉 Vitamin B1 [Etym.: <Thio… + Amin] …   Lexikalische Deutsches Wörterbuch

  • Thiamin — Thi|ami̱n [Kunstw.] s; s: = Vitamin B1 …   Das Wörterbuch medizinischer Fachausdrücke


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