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Epigenetic Regulation01:46

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Hypothalamic epigenetics driving female puberty.

C A Toro1, C F Aylwin1, A Lomniczi1

  • 1Primate Genetics Section/Division of Neuroscience, Oregon National Primate Research Center/Oregon Health & Science University, Beaverton, OR, USA.

Journal of Neuroendocrinology
|March 10, 2018
PubMed
Summary
This summary is machine-generated.

Epigenetics regulates the genetic balance controlling female puberty onset. This review explores how epigenetic mechanisms relay environmental signals to the hypothalamus, influencing reproductive development.

Keywords:
GnRH neuronesKNDy neuronesPolycomb GroupTrithorax complexarcuate nucleuschromatin modificationsepigenetic regulatorsfemale pubertykisspeptin neuronestranscriptional activationtranscriptional repression

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Area of Science:

  • Neuroendocrinology
  • Reproductive Biology
  • Epigenetics

Background:

  • Puberty involves significant physiological and behavioral changes, culminating in fertility.
  • Activation of the hypothalamic-pituitary-gonadal axis via gonadotrophin-releasing hormone (GnRH) is crucial for puberty.
  • Current hypotheses suggest altered synaptic inhibition and excitation drive GnRH release.

Purpose of the Study:

  • To review the role of epigenetics in the hypothalamic control of female puberty.
  • To explore how epigenetic machinery influences the genetic balance regulating pubertal transition.
  • To examine epigenetics as a mediator of environmental influences on pubertal development.

Main Methods:

  • Literature review of current research on epigenetics and puberty.
  • Analysis of studies investigating gene expression and epigenetic modifications in the hypothalamus.
  • Synthesis of evidence linking environmental factors to epigenetic regulation of GnRH secretion.

Main Results:

  • Epigenetic mechanisms are implicated in controlling the balance of puberty-activating and puberty-inhibitory genes.
  • Epigenetics may act as a crucial relay for environmental signals that modulate pubertal timing.
  • Evidence suggests a significant role for epigenetic regulation in the hypothalamic control of female puberty.

Conclusions:

  • Epigenetic regulation is a key factor in the hypothalamic control of female puberty.
  • Understanding these epigenetic mechanisms offers insights into environmental influences on reproductive development.
  • Further research into epigenetic modifications can elucidate the complex regulation of pubertal onset.