Title : Pharmacological evidence that stimulation of central serotonergic pathways increases renin secretion.

Pub. Date : 1980

PMID : 6986577






4 Functional Relationships(s)
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1 5-Hydroxytryptophan (5-HTP) caused a significant increase (p less than 0.05) in arterial plasma renin activity (pra) that was abolished when peripheral and central aromatic amino acid decarboxylase activities were inhibited by administration of benserazide, but not reduced when only the peripheral decarboxylase activities were inhibited by administration of carbidopa. 5-Hydroxytryptophan renin Canis lupus familiaris
2 5-Hydroxytryptophan (5-HTP) caused a significant increase (p less than 0.05) in arterial plasma renin activity (pra) that was abolished when peripheral and central aromatic amino acid decarboxylase activities were inhibited by administration of benserazide, but not reduced when only the peripheral decarboxylase activities were inhibited by administration of carbidopa. 5-Hydroxytryptophan renin Canis lupus familiaris
3 The serotonin receptor blocking drug metergoline also abolished the renin response to 5-HTP. 5-Hydroxytryptophan renin Canis lupus familiaris
4 These data indicate that 5-HTP and L-Tryptophan act on the central nervous system to produce an increase in renin secretion that is mediated via the renal nerves and occurs without a concomitant increase in sympathetic output to the heart or blood vessels. 5-Hydroxytryptophan renin Canis lupus familiaris