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Neuroendocrinology. 1994 Feb;59(2):110-2.

Effect of the brain constituent anandamide, a cannabinoid receptor agonist, on the hypothalamo-pituitary-adrenal axis in the rat.

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Department of Neurology, Hadassah University Hospital, Jerusalem, Israel.


Anandamide (arachidonylethanolamide), an endogenous ligand of the cannabinoid receptor, was recently isolated from porcine brain. We report here for the first time on the effect of this ligand on the hypothalamo-pituitary adrenal (HPA) axis in comparison to that of the plant cannabinoid delta 9-tetrahydrocannabinol (THC). Intracerebroventricular injection of anandamide or THC (50 or 150 micrograms/rat) increased significantly the serum levels of ACTH and corticosterone in a dose-dependent manner and caused a pronounced depletion of CRF-41 in the median eminence. These data suggest that anandamide parallels THC in activating the HPA axis via mediation of a central mechanism which involves the secretion of CRF-41.

[Indexed for MEDLINE]

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