Involvement of endogenous corticotropin-releasing factor in mediation of neuroendocrine and behavioral effects to alpha-melanocyte-stimulating hormone.

Abstract:

:The present work was to study if the alpha-melanocyte-stimulating hormone (alpha-MSH) was involved in activation of the pituitary-adrenal axis (PAA) in rats. The hormone increased plasma corticosterone (CORT) level, and induced an anxiogenic response as indicated by results from the elevated plus-maze test. Intracerebroventricular administration of corticotropin-releasing factor (CRF) antiserum (1:10, 1:20 and 1:100 dilutions in 1microl volume), overcame both the anxiogenic response and the PAA activating effect induced by alpha-MSH (50 microg s.c.) in a concentration-dependent manner. CRF antibody at the doses applied did not modify either the elevated plus-maze responses or CORT level by itself. Our results reveal that both the anxiogenic and the PAA activating effects of alpha-MSH are mediated by CRF.

journal_name

Endocr Res

journal_title

Endocrine research

authors

Vecsernyés M,Biró E,Gardi J,Julesz J,Telegdy G

doi

10.3109/07435800009066172

subject

Has Abstract

pub_date

2000-08-01 00:00:00

pages

347-56

issue

3

eissn

0743-5800

issn

1532-4206

journal_volume

26

pub_type

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