Dissociation of the inhibitory and facilitatory effects of norepinephrine on the release of LH by premammillary lesions.


A dual action of the adrenergic system on the release of LH has been demonstrated: facilitation mediated by alpha-adrenergic receptors and inhibition mediated by beta-adrenergic receptors. These two actions can be dissociated either by treatment with agents which block-specific adrenergic receptors or by cuts placed just in front of the mammillary bodies… (More)