5-hydroxytryptamine


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serotonin

 [ser″o-to´nin]
a hormone and neurotransmitter, 5-hydroxytryptamine (5-HT), found in many tissues, including blood platelets, intestinal mucosa, pineal body, and central nervous system; it has many physiologic properties, including inhibition of gastric secretion, stimulation of smooth muscles, and production of vasoconstriction.

ser·o·to·nin

(ser'ō-tō'nin),
A vasoconstrictor, liberated by blood platelets, that inhibits gastric secretion and stimulates smooth muscle; present in relatively high concentrations in some areas of the central nervous system (hypothalamus, basal ganglia), and occurring in many peripheral tissues and cells and in carcinoid tumors.
[sero- + G. tonos, tone, tension, + -in]

5-hydroxytryptamine

/5-hy·droxy·tryp·ta·mine/ (5-HT) (-trip´tah-mēn) serotonin.

5-hydroxytryptamine (5-HT)

See serotonin.

ser·o·to·nin

(ser'ŏ-tō'nin)
A vasoconstrictor, liberated by platelets; inhibits gastric secretion and stimulates smooth muscle; also acts as a neurotransmitter; present in the central nervous system, many peripheral tissues and cells, and carcinoid tumors.
Synonym(s): 5-hydroxytryptamine.
[L. serum + G. tonos, tone, tension, + -in]

5-hydroxytryptamine

See SEROTONIN.

serotonin

; 5-hydroxytryptamine; 5-HT vasoconstrictor phospholipid; liberated by platelets, and present in high concentrations in central nervous system and peripheral tissues; also inhibits gastric secretions

ser·o·to·nin

(ser'ŏ-tō'nin)
A vasoconstrictor, liberated by platelets; inhibits gastric secretion and stimulates smooth muscle; also acts as a neurotransmitter; present in the central nervous system, many peripheral tissues and cells, and carcinoid tumors.
Synonym(s): 5-hydroxytryptamine.
[L. serum + G. tonos, tone, tension, + -in]

5-hydroxytryptamine

serotonin.
References in periodicals archive ?
Determination of 5-hydroxytryptamine, 5-hydroxyindoleacetic acid and tryptophan in plasma and urine by HPLC with fluorimetric detection.
A demonstration that 5-hydroxytryptamine administered peripherally can affect sexual behavior in male rats.
The effects of acetylcholine, dopamine and 5-hydroxytryptamine on water pumping rate and pressure in the mussel Mytilus edulis L.
In vivo evaluation of 5-hydroxytryptamine stimulation of the testis in the fiddler crab, Uca pugilator: a presumed action on the neuroendocrine system.
A case of coeliac disease detected via raised 5-hydroxytryptamine and 5-hydroxyindoleacetic acid.
Antagonistic actions of dopamine and 5-hydroxytryptamine on color changes in the fiddler crab, Uca pugilator Comp.
Histochemical reactions of the enterochromaffin cells and the 5-hydroxytryptamine content of the mammalian duodenum.
Platelet aggregation is initiated by several agonists, such as adrenaline, adenosine 5'-diphosphate (ADP), 5-hydroxytryptamine (5-HT), thromboxane [A.
Coramine, 5-hydroxytryptamine, [alpha]-ergocryptine, ergonovine maleate, ergotamine tartarate, hordenine hemisulfate, L-tryptophan, lysergol, and N-demethyl-LSD (nor-LSD) were purchased from Sigma.
Taken together the present results, possibly ascribed to increased levels of 5-hydroxytryptamine (5-HT) in the brain, suggest a cautious administration of the plant extract owing to its negative influence on female sexual behavior.