Mann, P E; Felicio, L F; Bridges, R S (1995) Investigation into the role of cholecystokinin (CCK) in the induction and maintenance of maternal behavior in rats. Horm Behav 29:392-406
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Hammer Jr, R P; Bogic, L; Handa, R J (1993) Estrogenic regulation of proenkephalin mRNA expression in the ventromedial hypothalamus of the adult male rat. Brain Res Mol Brain Res 19:129-34
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Hammer Jr, R P; Mateo, A R; Bridges, R S (1992) Hormonal regulation of medial preoptic mu-opiate receptor density before and after parturition. Neuroendocrinology 56:38-45
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Bridges, R S; Hammer Jr, R P (1992) Parity-associated alterations of medial preoptic opiate receptors in female rats. Brain Res 578:269-74
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Mann, P E; Bridges, R S (1992) Neural and endocrine sensitivities to opioids decline as a function of multiparity in the rat. Brain Res 580:241-8
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Mateo, A R; Hijazi, M; Hammer Jr, R P (1992) Dynamic patterns of medial preoptic mu-opiate receptor regulation by gonadal steroid hormones. Neuroendocrinology 55:51-8
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Felicio, L F; Mann, P E; Bridges, R S (1991) Intracerebroventricular cholecystokinin infusions block beta-endorphin-induced disruption of maternal behavior. Pharmacol Biochem Behav 39:201-4
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Mann, P E; Kinsley, C H; Bridges, R S (1991) Opioid receptor subtype involvement in maternal behavior in lactating rats. Neuroendocrinology 53:487-92
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Bridges, R S; Numan, M; Ronsheim, P M et al. (1990) Central prolactin infusions stimulate maternal behavior in steroid-treated, nulliparous female rats. Proc Natl Acad Sci U S A 87:8003-7
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