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Biochem Biophys Res Commun. 2001 Jun 8;284(2):363-8.

The central cannabinoid receptor inactivation suppresses endocrine reproductive functions.

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  • 1Department of Human Morphology, Semmelweis University, H-1450 Budapest, Hungary. wenger@ana2.sote.hu

Abstract

The function of central cannabinoid (CB1) receptor was investigated in the regulation of the pituitary-gonad axis in CB1 receptor knockout male mouse. Serum luteinizing hormone (LH) and testosterone (T) levels and basal T secretion in vitro of testes were significantly decreased in mutant (CB1-/-) mice. The receptor agonist, anandamide (ANA), suppressed LH and T secretion in wild type (CB1+/+) mice but had no effect in receptor inactivated animals. The results are the first descriptions indicating the direct action of CB1 receptors on LH and T secretion and the immunohistological demonstration of CB1 receptors in the Leydig cells. The results also indicate that CB1 receptors are responsible for the effects of exogenous cannabinoids on reproductive functions.

Copyright 2001 Academic Press.

PMID:
11394887
[PubMed - indexed for MEDLINE]
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