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Genes underlying delayed puberty.

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Summary
This summary is machine-generated.

Genetic factors influencing puberty timing are complex. Recent studies reveal diverse genetic mutations and pathways contributing to familial delayed puberty (DP), offering new insights into its causes.

Keywords:
Constitutional delayDelayed pubertyIGSF10Pubertal timingPubertyPuberty geneticsSelf-limited delayed puberty

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Area of Science:

  • Endocrinology
  • Genetics
  • Reproductive Medicine

Background:

  • Delayed puberty (DP) is common, with constitutional delay of growth and puberty (CDGP) being the most frequent cause.
  • Familial CDGP has a strong genetic basis, often inherited in an autosomal dominant pattern.
  • The precise neuroendocrine pathophysiology and genetic regulation of DP have remained largely unknown.

Purpose of the Study:

  • To explore the genetic underpinnings of familial self-limited delayed puberty.
  • To synthesize recent findings from next-generation sequencing and genome-wide association studies.
  • To elucidate the heterogeneous genetic and molecular mechanisms contributing to DP.

Main Methods:

  • Next-generation sequencing (NGS) of genes associated with GnRH deficiency and familial DP.
  • NGS studies in patients with early puberty.
  • Genome-wide association studies (GWAS) in the general population.

Main Results:

  • Novel gene discoveries have shed light on mutations causing familial DP.
  • Genetic basis of DP is highly heterogeneous, involving multiple pathways.
  • Abnormalities in GnRH neuronal development, metabolic homeostasis, and transcriptional regulation are implicated.

Conclusions:

  • Recent genetic discoveries highlight the complexity of DP etiology.
  • Multiple pathogenic mechanisms, affecting the hypothalamic-pituitary-gonadal axis, can lead to DP.
  • These disruptions can occur at various developmental stages from fetal life to puberty.