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Showing 1 to 8 of 8 for “"5-hydroxytryptophan"”.
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Effects of Alterations in Monoamine Levels on Conditioned Taste Aversions in the Rat.
… pretreatment with the serotonin precursor, 5-hydroxytryptophan, will attenuate a taste aversion. However, conclusions based on studies using 5-hydroxytryptophan may be of limited value since exogenous 5-hydroxytryptophan may be converted into serotonin in catecholaminergic neurons as well as …
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Effects of the Administration of 5-Hydroxydl-Tryptophan and 3,4-Dihydroxyphenylalanine on the Acquisition of a Conditioned Avoidance Response
… of performance while the administration of 5-hydroxytryptophan (5-HTP) results in an impairment of performance and reported enhancement of acquisition. The purpose of the present study is to compare the effects of 5-HTP and L-Dopa on the acquisition of a single behavioral task. Each animal …
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Tryptophan-Abkömmlinge in wirbellosen Meerestieren : Isolierung, Struktur und Funktion
… hin untersucht. Als Hauptmetabolit konnte 5-Hydroxytryptophan (186) isoliert werden, das ein Redoxpotential mit antioxidativen Möglich-keiten besitzt. Mehrere Aufsammlungen wurden mittels HPLC und NMR-Spektroskopie quantifiziert. Der durchschnittliche Gehalt von (0.45 ± 0.23) bestätigte die …
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The Effect of Gonadal Steroids and Altered Tryptophan Metabolism on behaviour
… oxidase inhibitor and either l-tryptophan or 5-hydroxytryptophan, was thought to be due to increased brain tryptemine levels, rather than the associated increase in brain 5-hydroxytryptamine levels,
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ΑΠΟΜΟΝΩΣΗ ΚΑΙ ΚΑΘΑΡΙΣΜΟΣ ΤΟΥ ΕΝΖΥΜΟΥ L-DOPA ΑΠΟΚΑΡΒΟΞΥΛΑΣΗ ΑΠΟ ΤΙΣ ΛΕΥΚΕΣ ΝΥΜΦΕΣ ΤΟΥ ΕΝΤΟΜΟΥ CERATITIS CAPITATA ΚΑΙ ΑΠΟ ΑΝΘΡΩΠΙΝΟ ΝΕΦΡΙΚΟ ΙΣΤΟ. ΣΥΓΚΡ...
… TOWARDS L-DOPA AND AN AFFINITY FOR 5- HYDROXYTRYPTOPHAN. DOPA DECARBOXYLASE OF WHITE PREPUPAE SHOWS ABSOLUTE SPECIFICITY TOWARDS L-DOPA.
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Analysis of Clinically Important Compounds Using Electrophoretic Separation Techniques Coupled to Time-of-Flight Mass Spectrometry
… indolamines (serotonin, tryptophan, and 5-hydroxytryptophan), and angiotensin peptides. While electrophoretic separation techniques provided high separation efficiency, mass spectrometric detection afforded specificity unsurpassed by other types of detectors.</p> <p>Both catecholamines and …
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Studies in the handling and absorption of biopterin derivatives in man
… of tyrosine to dopa and tryptophan to 5—hydroxytryptophan. Serum Crithidia factor levels in phenylketonuria were elevated as a result of hyperphenylalaninaemia, This raised level could arise either from increased synthesis or altered tissue/body fluid partition. In kidney disease, where …
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Possible Influences of Circadian Melatonin on the Function of Neurosecretory Neurons and Serotonin-Modulated Behavior on Crayfish.
… (5-HT) und N-acetylserotonin (NAS), welche aus 5-Hydroxytryptophan synthetisiert werden. Serotonin spielt eine wichtige Rolle in verschiedene Funktionen bei Vertebraten und Wirbellosen. Trotzdem, sind die Kenntnisse über Invertebraten N-acetylserotonin relative begrenzt, und auch für Melatonin …