Results 261 to 270 of about 82,084 (287)
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Deuteration of catecholamines, catecholamine metabolites and tryptophan metabolites
Journal of Labelled Compounds and Radiopharmaceuticals, 1978AbstractThe preparation of some deuterium labelled catecholamines, catecholamine metabolites and tryptophan metabolites is described. Simple exchange reactions in DC1/D20 solution or reductions with Li Al D4 were used. The deuterium labelled compounds prepared are suitable for use as internal standards for quantitative mass‐fragmentographic analysis of
Muskiet, F.A.J. +4 more
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The ce:role of tryptophan metabolites in regulating gluconeogenesis
The American Journal of Clinical Nutrition, 1971Tryptophan is unique among the natural amino acids in its ability to induce, in animals, enhanced synthesis of many different enzymes. This ability appears to depend on the inhibition of gluconeogenesis by compounds derived metabolically from tryptophan (1-3).
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Tryptophan Metabolites in Parkinson’s Brain
1990Quinolinic acid (QA) is an intermediate in the kynurenic pathway from tryptophan (TRP) to nicotinic acid. Recently, QA has been demonstrated to be increased in the aging rat brain1 and to act on neurons as an endogenous excitotoxin.2 Kynurenic acid (KYA), another product of this pathway, has been shown to antagonize excitotoxic amino acids and QA.3 ...
Tatsuji Ogawa +5 more
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Neurotoxicity of Tryptophan Metabolitesa
Annals of the New York Academy of Sciences, 1990R J, Boegman +2 more
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Tryptophan metabolites of gastric juice
Clinica Chimica Acta, 1967D W, Piper, B H, Fenton
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