title: Pathogenesis of polycystic ovary syndrome: evidence for a genetically determined disorder of ovarian androgen production.
abstract: Polycystic ovary syndrome (PCOS) is the commonest endocrine disorder in women of reproductive age. It is the major cause of anovulatory infertility and of hirsutism but its aetiology remains uncertain. The most consistent biochemical abnormality is hypersecretion of androgens. In this review, evidence is presented to support the view that a genetically determined abnormality of ovarian androgen secretion is the primary cause of the syndrome. Molecular genetic studies have demonstrated that CYP11a, the gene encoding P450 cholesterol side chain cleavage, is a major susceptibility locus for development of hyperandrogenism in PCOS.
authors.affiliation: Department of Reproductive Science and Medicine and Section of Endocrinology and Metabolism, Imperial College School of Medicine, St Mary's Hospital, London W2 1PG, UK.
authors.forename: Stephen
authors.initials: S
authors.lastname: Franks
authors.forename: Carole
authors.initials: C
authors.lastname: Gilling-Smith
authors.forename: Neda
authors.initials: N
authors.lastname: Gharani
authors.forename: Mark
authors.initials: M
authors.lastname: McCarthy