tyramine

tyramine
Decarboxylated tyrosine, a sympathomimetic amine having an action in some respects resembling that of epinephrine; present in ergot, mistletoe, ripe cheese, beers, red wines, and putrefied animal matter; elevated in individuals with tyrosinemia type II.
- t. oxidase SYN: amine oxidase (flavin-containing).

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ty·ra·mine 'tī-rə-.mēn n a phenolic amine C8H11NO that is found in various foods and beverages (as cheese and red wine), has a sympathomimetic action, and is derived from tyrosine

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n.
an amine naturally occurring in cheese. It has a similar effect in the body to that of adrenaline. This effect can be dangerous in patients taking MAO inhibitor (antidepressants), in whom blood pressure may become very high. Cheese is therefore not advised when such drugs are prescribed.

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ty·ra·mine (tiґrə-mēn) a decarboxylation product of tyrosine, which may be converted to cresol and phenol; closely related structurally to epinephrine and norepinephrine, it has a similar but weaker action. It is found in decayed animal tissue, ripe cheese, and ergot.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Tyramine — IUPAC name …   Wikipedia

  • Tyramine — Structure de la tyramine Général Nom IUPAC 4 hydroxy phényléthylamine …   Wikipédia en Français

  • tyramine — [ tiramin ] n. f. • 1945; de tyr(o) , du gr. turos « fromage », et amine ♦ Biochim. Amine résultant de la décarboxylation de la tyrosine et utilisée dans le traitement de l hypertension. tyramine [tiʀamin] n. f. ÉTYM. 1945, in D. D. L.; …   Encyclopédie Universelle

  • tyramine — [tī′rə mēn΄, tī′rəmin] n. [ TYR(OSINE) + AMINE] a crystalline amine, C8H11NO, found in ergot, cheeses, mistletoe, etc., and formerly used in the treatment of hypotension …   English World dictionary

  • tyramine — tiraminas statusas T sritis chemija formulė HOC₆H₄CH₂CH₂NH₂ atitikmenys: angl. tyramine rus. тирамин ryšiai: sinonimas – 4 (2 aminoetil)fenolis …   Chemijos terminų aiškinamasis žodynas

  • tyramine — noun amino acid derived from tyrosine; has a sympathomimetic action; found in chocolate and cola drinks and ripe cheese and beer patients taking MAOIs should avoid foods containing tyramine • Hypernyms: ↑amino acid, ↑aminoalkanoic acid …   Useful english dictionary

  • Tyramine N-feruloyltransferase — In enzymology, a tyramine N feruloyltransferase (EC number|2.3.1.110) is an enzyme that catalyzes the chemical reaction:feruloyl CoA + tyramine ightleftharpoons CoA + N feruloyltyramineThus, the two substrates of this enzyme are feruloyl CoA and… …   Wikipedia

  • Tyramine N-methyltransferase — In enzymology, a tyramine N methyltransferase (EC number|2.1.1.27) is an enzyme that catalyzes the chemical reaction:S adenosyl L methionine + tyramine ightleftharpoons S adenosyl L homocysteine + N methyltyramineThus, the two substrates of this… …   Wikipedia

  • tyramine — noun Etymology: International Scientific Vocabulary tyrosine + amine Date: 1910 a phenolic amine C8H11NO found in various foods and beverages (as cheese and red wine) that has a sympathomimetic action and is derived from tyrosine …   New Collegiate Dictionary

  • tyramine — /tuy reuh meen /, n. Biochem. an amine, C8H11NO, abundant in ripe cheese as a breakdown product of tyrosine by removal of the carboxyl group (COOH). * * * …   Universalium

  • tyramine — noun a phenolic amine, 4 hydroxy phenethylamine, derived from the amino acid tyrosine, found in various foodstuffs and used as a sympathomimetic agent …   Wiktionary

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