Results 81 to 90 of about 2,522,863 (212)

Use of alumina, sephadex G10, and ion-exchange columns to purify samples for determination of epinephrine, norepinephrine, dopamine, homovanillic acid, and 5-hydroxyindoleacetic acid in urine

open access: yes, 1982
We investigated the usefulness of small Sephadex columns, prepared in Pasteur pipettes, in purifying samples to be analyzed for catecholamines, homovanillic acid, and 5-hydroxyindoleacetic acid. After free catecholamines in urine samples were purified on
Westerink, B. H. C.   +2 more
core   +1 more source

Allylic oxidation of ent-Kaurenic acid, ent-Kaurenic acid Methyl Ester and ent-Kaurenol. [PDF]

open access: yes, 2015
The allylic oxidation of ent-kaurenic acid, ent-kaurenic acid methyl ester, and ent-kaurenol with SeO2/H2O2 is presented. The reaction was run in dioxan solution at room temperature stirring for 4 hours.
Bahsas B., Alí H.   +2 more
core   +1 more source

The role of hydroxyindoles in protecting neuronal cultures from ferroptosis

open access: yesCell Death Discovery
Hydroxyindoles are organic compounds characterized by a hydroxyl group attached to an indole ring. One notable example is 5-hydroxyindole, which can be found in humans, plants, and microorganisms. The structure of 5-hydroxyindole is integral to molecules
Md. Jakaria, Jason R. Cannon
doaj   +1 more source

Chemical biomarkers of epileptogenesis and ictogenesis in experimental epilepsy

open access: yesNeurobiology of Disease, 2019
Epilepsy produces chronic chemical changes induced by altered cellular structures, and acute ones produced by conditions leading into individual seizures.
Hiram Luna-Munguia   +4 more
doaj   +1 more source

Dystrobrevin-binding protein 1 gene (DTNBP1) variants associated with cerebrospinal fluid homovanillic acid and 5-hydroxyindoleacetic acid concentrations in healthy volunteers

open access: yes, 2011
The dystrobrevin binding protein-1 (DTNBP1) gene encodes dysbindin-1, a protein involved in neurodevelopmental and neurochemical processes related mainly to the monoamine dopamine. We investigated possible associations between eleven DTNBP1 polymorphisms
Saetre, Peter   +24 more
core   +1 more source

The correlation between urinary 5-hydroxyindoleacetic acid and sperm quality in infertile men and rotating shift workers

open access: yesReproductive Biology and Endocrinology, 2010
Background Serotonin is a neurotransmitter that modulates a wide range of neuroendocrine functions. However, excessive circulating serotonin levels may induce harmful effects in the male reproductive system.
Pariente José A   +7 more
doaj   +1 more source

Tryptophan depletion increases nausea, headache and photophobia in migraine sufferers [PDF]

open access: yes, 2006
Sensitivity to light was investigated 5 and 8 h after consumption of an amino acid drink which contained L-tryptophan (balanced amino acid condition: 19 controls and 22 migraine sufferers) or which produced a short-term reduction in brain serotonin ...
Drummond, P.D.
core  

Spot urinary 5-hydroxyindoleacetic acid is not an ideal diagnostic test for acute appendicitis [PDF]

open access: yes, 2016
Background and purpose of the studyThere is growing evidence to suggest the use of urinary 5-hydroxyindoleacetic acid (5-HIAA) test to help with the diagnosis of appendicitis.
Wilson, Michael   +5 more
core   +1 more source

Determination of 5-hydroxyindoleacetic acid using HPLC with electrochemical detection [PDF]

open access: yes, 2017
The diploma thesis focuses on a determination of 5-hydroxyindoleacetic acid (5-HIAA) in human urine using a boron-doped diamond film electrode (BDDFE). 5-HIAA is the main final metabolite in the serotonin metabolic pathway and it is used as a biomarker ...
Harvila, Marek
core  

The Association between Elevated Levels of Peripheral Serotonin and Its Metabolite – 5-Hydroxyindoleacetic Acid and Bone Strength and Metabolism in Growing Rats with Mild Experimental Chronic Kidney Disease - Fig 6

open access: yes, 2016
The correlation between ALP and 5-HIAA serum levels in rats with CKD (panel A) and controls (panel B). Abbreviations: ALP = alkaline phosphatase, 5-HIAA = 5-hydroxyindoleacetic acid.
Krystyna Pawlak (3203118)   +9 more
core   +1 more source

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