: MeSH: Puberty, Precocious

Endocrine System Diseases > Gonadal Disorders > Puberty, Precocious

Puberty, Precocious

Development of SEXUAL MATURATION in boys and girls at a chronological age that is 2.5 standard deviations below the mean age at onset of PUBERTY in the population. This early maturation of the hypothalamic-pituitary-gonadal axis results in sexual precocity, elevated serum levels of GONADOTROPINS and GONADAL STEROID HORMONES such as ESTRADIOL and TESTOSTERONE. An autosomal dominant hereditary disorder that is characterized by gonadotropin-dependent precocious puberty due to early activation of the hypothalamic-pituitary-gonadal axis. A mutation in the KISS1R gene has been identified. OMIM: 176400 Familial precocious puberty in boys usually presents by age 4 with rapid VIRILIZATION and is also characterized by gonadotropin-independent testosterone secretion, low secretion of LUTEINIZING HORMONE, and advanced SPERMATOGENESIS in the testis. Mutations in the LHCGR gene have been identified. OMIM: 176410

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