kynurenic acid

kynurenic acid
A product of the metabolism of l-tryptophan; appears in human urine in states of marked pyridoxine deficiency.

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kyn·uren·ic acid .kīn-yu̇-.ren-ik-, .kin- n a crystalline acid C10H7NO3 that is formed from kynurenine as one of the normal products of tryptophan metabolism and that is excreted in the urine in certain metabolic disorders

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kyn·uren·ic ac·id (kin″u-renґik) a bicyclic aromatic compound formed from kynurenine via a transamination reaction and cyclization as a step in one pathway of tryptophan catabolism. It is excreted in the urine in several disorders of tryptophan catabolism.

Medical dictionary. 2011.

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  • kynurenic acid — |ki]nyə|renik , |kī] noun Etymology: kynurenic International Scientific Vocabulary kyn (from Greek kyn , kyōn dog) + uren (irregular from Greek ouron urine) + ic more at hound, urine : a crystalline acid C9H5N(OH)COOH occurring in the urine of… …   Useful english dictionary

  • kynurenic acid — noun A metabolite of tryptophan that has antiexcitotoxic and anticonvulsant activity …   Wiktionary

  • kynurenic — adjective Of or pertaining to kynurenic acid or its derivatives …   Wiktionary

  • Kynurenic — Ky nu*ren ic, a. [Gr. ?, ?, dog + ? urine.] (Physiol. Chem.) Pertaining to, or designating, an acid obtained from the urine of dogs. By decomposition the acid yields a nitrogenous base (called kynurin) and carbonic acid. [Written also {cynurenic} …   The Collaborative International Dictionary of English

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  • xanthurenic acid — |zan(t)th(y)ə|renik noun Etymology: xanth + urenic (as in kynurenic) : a yellow crystalline phenolic acid (HO)2C9H4NCOOH closely related to kynurenic acid and excreted in the urine when tryptophan is added to the diet of experimental animals… …   Useful english dictionary

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