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  • Hypothalamic sites of leptin action linking metabolism and reproduction
  • Donato J Jr; Cravo RM; Frazao R; Elias CF
  • Neuroendocrinology 2011[]; 93 (1): 9-18
  • A critical amount of energy reserve is necessary for puberty initiation, for normal sexual maturation and maintenance of cyclicity and fertility in females of most species. Therefore, the existence of circulating metabolic cues which directly modulate the hypothalamus-pituitary-gonad axis is predictable. The adipocyte-derived hormone leptin is one of these cues having been studied extensively in the context of regulating the reproductive physiology. Humans and mice lacking leptin (ob/ob) or leptin receptor (LepR, db/db) are infertile. Leptin administration to leptin-deficient subjects and ob/ob mice induces puberty and restores fertility. LepR is expressed in brain, pituitary gland and gonads, but studies using genetically engineered mouse models determined that the brain plays a major role. Recently, it has been made clear that leptin acts indirectly on gonadotropin-releasing hormone (GnRH)-secreting cells via actions on interneurons. However, the exact site(s) of leptin action has been difficult to determine. In this review, we discuss the recent advances in the field focused on the identification of potential site(s) or specific neuronal populations involved in leptin's effects in the neuroendocrine reproductive axis.
  • |Animals[MESH]
  • |Brain Stem/metabolism/physiology[MESH]
  • |Humans[MESH]
  • |Hypothalamus/metabolism/*physiology[MESH]
  • |Leptin/metabolism/*physiology[MESH]
  • |Metabolism/*physiology[MESH]
  • |Neurons/metabolism/physiology[MESH]
  • |Reproduction/*physiology[MESH]





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    *<b>[http://www.kidney.de/mlpefetch.php?search=21099209 Hypothalamic sites of leptin action linking metabolism and reproduction ]</b> Neuroendocrinology 2011; 93(1) ; 9-18 Donato J Jr; Cravo RM; Frazao R; Elias CF

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    Neuroendocrinology

    9 1.93 2011