Role of orexins in the hypothalamic-pituitary-ovarian relationships

P. Silveyra, N. I. Cataldi, V. A. Lux-Lantos, C. Libertun

Research output: Contribution to journalArticlepeer-review

50 Scopus citations


Appropriate nutritional and vigilance states are needed for reproduction. In previous works, we described the influence of the hormonal milieu of proestrus on the orexinergic system and we found that orexin receptor 1 expression in the hypothalamus, but not other neural areas, and the adenohypophysis was under the influence of oestradiol and the time of the day. Information from the sexual hormonal milieu of proestrous afternoon impacts on various components of the orexinergic system and alertness on this particular night of proestrus would be of importance for successful reproduction. In this review, we summarize the available experimental data supporting the participation of orexins in the hypothalamic-pituitary-ovarian relationships. All together, these results suggest a role of the orexinergic system as an integrative link among vital functions such as reproduction, food intake, alertness and the inner biological clock.

Original languageEnglish (US)
Pages (from-to)355-360
Number of pages6
JournalActa Physiologica
Issue number3
StatePublished - Mar 2010

All Science Journal Classification (ASJC) codes

  • Physiology


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