PMID: 9437735Jan 23, 1998Paper

Sexual motivation promotes oxytocin secretion in male rats

Peptides
V HillegaartS Ahlenius

Abstract

The present study examines plasma oxytocin levels in relation to performance of copulatory behavior in male rats. The animals were divided into three groups: A) home-cage controls, B) sexually naive and C) sexually experienced. Following 15 min of sexual interactions with a sexually proceptive female, brought into estrus by sequential injections of estradiol benzoate (12.5 micrograms animal-1, -48 h) and progesterone (0.5 mg animal-1, -6 h), the male rats were decapitated. Trunk blood was collected for preparation of plasma samples, and subsequent radioimmunoassay for oxytocin. Home-cage controls, not exposed to a sexually proceptive female, were decapitated at the same time as experimental animals. It was found that plasma oxytocin levels were significantly elevated in sexually naive rats following exposure to a sexually proceptive female, and that plasma oxytocin levels were highly correlated with intensity of copulatory performance in these animals. In addition, it was also found that plasma prolactin and glucose levels were increased, regardless of sexual experience, in comparison with home-cage controls. It is concluded that the emotional challenge, and the situation-specific demands for action, created by an encounter wit...Continue Reading

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Citations

Oct 18, 2000·European Journal of Pharmacology·F Drago, C O Lissandrello
Feb 13, 2013·Behavioral Neuroscience·Jennifer A CummingsJill B Becker
Jan 20, 2007·The Journal of Sexual Medicine·Trynke R de JongMarcel D Waldinger
Oct 30, 2010·The Journal of Sexual Medicine·Arthur L BurnettZhong C Xin
May 21, 2009·The Journal of Sexual Medicine·James G Pfaus
Aug 17, 2005·The European Journal of Neuroscience·Tommy PattijBerend Olivier
Feb 5, 2010·The European Journal of Neuroscience·T A BaskervilleA J Douglas
Aug 5, 2014·European Journal of Pharmacology·J G VeeningB Olivier
Feb 28, 2004·Psychophysiology·Maurizio CodispotiBruno Baldaro
Jun 14, 2018·Physiological Reviews·Benjamin Jurek, Inga D Neumann
Jun 15, 1999·Psychosomatic Medicine·M S ExtonM Schedlowski
Apr 9, 2021·Communicative & Integrative Biology·Takumi OtiHirotaka Sakamoto

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