Results 131 to 140 of about 4,998,988 (263)

The 24-Hour Urinary 5-HIAA: A Simple Test With a Common Pitfall

open access: yesAACE Clinical Case Reports, 2016
: Objective: 5-Hydroxyindoleacetic acid (5-HIAA) is the principal metabolite of serotonin, and the quantitative urinary excretion of 5-HIAA is the most useful way to diagnose serotonin overproduction by carcinoid tumors.
Margaret L. Burks, MD   +1 more
doaj  

Concentrations of Homovanillic Acid and 5-Hydroxyindoleacetic Acid in Cerebrospinal Fluid from Human Infants in the Perinatal Period [PDF]

open access: yes, 1984
To assess maturation of central serotonin and catecholamine pathways at birth, we measured lumbar CSF homovanillic acid (HVA) and 5-hydroxyindoleacetic acid (5-HIAA), stable acid metabolites of dopamine and serotonin, using HPLC with electrochemical ...
Andersson H.   +13 more
core   +1 more source

Maternal Cerebrospinal Fluid Glutamate in Response to Variable Foraging Demand: Relationship to Cerebrospinal Fluid Serotonin Metabolites in Grown Offspring

open access: yesChronic Stress, 2018
Background Maternal response to allostatic overload during infant rearing may alter neurobiological measures in grown offspring, potentially increasing susceptibility to mood and anxiety disorders. We examined maternal cerebrospinal fluid (CSF) glutamate
Jeremy D. Coplan   +9 more
doaj   +1 more source

Indigenous amino acids in primitive CR meteorites [PDF]

open access: yesarXiv, 2008
CR meteorites are among the most primitive meteorites. In this paper, we report the first measurements of amino acids in Antarctic CR meteorites, two of which show the highest amino acid concentrations ever found in a chondrite. EET92042, GRA95229 and GRO95577 were analyzed for their amino acid content using high performance liquid chromatography with ...
arxiv  

Fatal Systemic Vasoconstriction in a Case of Metastatic Small-Intestinal NET

open access: yesCase Reports in Gastrointestinal Medicine, 2017
An increased release of serotonin secreted by ileal NETs is thought to be the major factor causing the carcinoid syndrome. However, in acutely arising carcinoid crisis also other vasoactive factors may lead to hazardous fluctuations in blood pressure and
Stenzel Jochen   +4 more
doaj   +1 more source

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