5-Methoxytryptamine is metabolized by monoamine oxidase A in the pineal gland and plasma of golden hamsters.

Abstract:

:Pineal concentrations of 5-methoxytryptamine, 5-methoxytryptophol, 5-methoxyindole acetic acid and melatonin were determined using high performance liquid chromatography following administration of different monoamine oxidase (MAO) inhibitors (clorgyline, pargyline and deprenyl) to golden hamsters. Plasma concentrations of 5-methoxytryptamine, 5-methoxytryptophol and melatonin were also measured following 5-methoxytryptamine administration to hamsters pretreated with MAO inhibitors. A significant increase in pineal and plasma 5-methoxytryptamine together with a decrease in 5-methoxytryptophol concentrations was observed after clorgyline or pargyline. In contrast, following deprenyl administration, no change in pineal and plasma 5-methoxyindoles was observed. These results indicate that monoamine oxidase A is responsible for oxidative deamination of 5-methoxytryptamine.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Raynaud F,Pévet P

doi

10.1016/0304-3940(91)90923-h

subject

Has Abstract

pub_date

1991-02-25 00:00:00

pages

172-4

issue

2

eissn

0304-3940

issn

1872-7972

pii

0304-3940(91)90923-H

journal_volume

123

pub_type

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