Results 81 to 90 of about 13,827,580 (161)

An Overview of Neuroendocrine Tumour Markers

Endocrinology Research and Practice, 2014
As there are many different subtypes of neuroendocrine tumors (NETs), many kinds of markers are used for their diagnosis and follow-up. Most of these markers, such as calcitonin, catecholamines, 5-hydroxyindoleacetic acid (5-HIAA), insulin, gastrin ...
Ersin Özaslan, Halit Diri, Halit Karacan, Yasin Şimşek, Fahri Bayram   +4 more
doaj   +1 more source

Electrochemical Methods for Determination of Three Tumor Biomarkers for Neuroblastoma: Homovanillic Acid, Vanillylmandelic Acid, and 5-Hydroxyindoleacetic Acid

, 2016
Tumor biomarkers – homovanillic acid, vanillylmandelic acid, and 5-hydroxyindoleacetic acid – have been determined at a screen-printed carbon electrode in small volume samples.
Makrlíková, A.
core  

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

, 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, Alijani, Afshin, Tait, Iain, Kennedy, Gwen; id_orcid, Mittapalli, Devender, Rao, Ahsan   +5 more
core   +1 more source

Dextromethorphan inhibits 5-hydroxytryptamine uptake by human blood platelets and decreases 5-hydroxyindoleacetic acid content in rat brain

, 1975
The effect of dextromethorphan on the uptake and metabolism of 5-hydroxytryptamine (5-HT) was studied in human blood platelets and in rat brain. In the concentration of 120 nM dextromethorphan inhibited the uptake of 5-HT (1 μM) into platelets by 50 ...
Liisa Ahtee
core   +1 more source

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

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

, 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, Andreassen, Ole A, Sedvall, Göran C, Anna K. Kähler, Ingrid Agartz, Jönsson, Erik G, Erik G. Jönsson, Sedvall, Göran C., Andreou, Dimitrios, Agartz, Ingrid, Hall, Håkan,, Kähler, Anna K, Dimitrios Andreou, Terenius, Lars, Thomas Werge, Andreassen, Ole A., Jönsson, Erik G., Håkan Hall, Ole A. Andreassen, Göran C. Sedvall, Werge, Thomas, Lars Terenius, Kähler, Anna K., Hall, Håkan, Peter Saetre   +24 more
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Effect of Safr and Cands on the levels of 5-hydroxytryptamine (5-HT, μg/g tissue), 5-hydroxyindoleacetic acid (5-HIAA, μg/g tissue), norepinephrine (NE, μg/g tissue) and dopamine (DA, μg/g tissue) in striatum of 3-NP-treated rats.

, 2023
Effect of Safr and Cands on the levels of 5-hydroxytryptamine (5-HT, μg/g tissue), 5-hydroxyindoleacetic acid (5-HIAA, μg/g tissue), norepinephrine (NE, μg/g tissue) and dopamine (DA, μg/g tissue) in striatum of 3-NP-treated rats.
Roqaya Mahmoud Hussein (17319695), Sherine Maher Rizk (17319698), Nagwa Ibrahim Shehata (17319689), Dina Mohamed Abd EL-Salam (17319692)   +3 more
core   +1 more source

A modified HPLC technique for simultaneous measurement of 5-hydroxytryptamine and 5-hydroxyindoleacetic acid in cerebrospinal fluid, platelet and plasma

, 1990
A sensitive, reliable and simplified HPLC assay for simultaneous measurement of 5-hydroxytryptamine (5-HT) and 5-hydroxyindoleacetic acid (5-HIAA) in human cerebrospinal fluid (CSF), platelets and plasma is described. Perchloric acid is used for one step
Kumar, Mahendra, Deepika, Krishnaprasad, Kumar, Adarsh M, Fernandez, Jesus B, Eisdorfer, Carl   +4 more
core   +1 more source

Role of Tryptophan in Microbiota-Induced Depressive-Like Behavior: Evidence From Tryptophan Depletion Study

Frontiers in Behavioral Neuroscience, 2019
During the past decade, there has been a substantial rise in the knowledge about the effects of gut microbiota on host physiology and behavior, including depressive behavior.
Iva Lukić, Dmitriy Getselter, Omry Koren, Evan Elliott   +3 more
doaj   +1 more source

Plasma 5-hydroxyindoleacetic acid as an indicator of MAO-A inhibition in brain and peripheral tissues

, 1993
We have examined the changes induced by the monoamine oxidase (MAO; EC 1.4.3.4) inhibitors tranylcypromine, clorgyline, and deprenyl on MAO activity and 5-hydroxytryptamine (serotonin, 5-HT) and 5-hydroxyindoleacetic acid (5-HIAA) content in rat brain ...
Artigas, Francesc, Pau Celada, Francesc Artigas, Celada, Pau   +3 more
core   +1 more source