Premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD) are
characterized by somatic and psychologic symptoms that arise at the luteal phase of the …

I. Introduction P ITUITARY hormones are secreted in the form of episodic bursts. At least two
modalities of these periodic hormonal events have been identified in the rat. Generally, low …

Sex differences in the neurochemical mediation of swim stress-induced analgesia (SSIA)
were examined in Swiss-Webster mice. Intact and gonadectomized adult mice of both sexes …

To evaluate whether the hypothalamus is the site of action of CRF in inhibiting LH levels in
female rats, we measured hypophysial-portal blood concentrations of immunoreactive …

Recent findings indicate that PRL helps stimulate the onset of maternal behavior in
inexperienced hypophysectomized steroid-treated female rats. In a series of five …

Gender and gonadal function have previously been shown to influence the magnitude of
analgesia following systemic morphine and opioid and nonopioid forms of swim analgesia …

Connections between adrenocorticotropic hormone (ACTH)-immunoreactive neurons in the
arcuate nucleus and the preoptic area were studied in the female rat. ACTH-immunopositive …

We have recently demonstrated the existence of a neuromodulatory regulation of prolactin
secretion by the opioid system showing a paradoxical opioid-induced prolactin suppression …

Central morphine analgesia is significantly greater in male than in female rats. Since mu and
delta opioid receptor subtypes have been implicated in supraspinal analgesia, the present …

To investigate whether progesterone metabolites' antinociceptive effects correlate with their
previously established binding efficacies at the GABA receptor complex (GBR), seven …