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Neurosci Lett. 1996 Jul 5;212(1):68-70.

Influence of opioid peptides on the priming action of estrogen on lordosis in ovariectomized rats.

Author information

1
Laboratory for Environmental Bioregulation, Faculty of Engineering, Kyushu Institute of Technology, Fukuoka, Japan.

Abstract

Lordosis in response to male mounting in estrogen-progesterone primed ovariectomized rats was facilitated by beta-endorphin or metenkephalin but inhibited by leu-enkephalin if the peptides were injected into third ventricle at the time of estrogen-priming. It is suggested that opioidergic systems modulate the activation of the estrogen-dependent brain functions that control lordosis.

PMID:
8823765
DOI:
10.1016/0304-3940(96)12763-4
[Indexed for MEDLINE]

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