title: Regulation of growth hormone action by gonadal steroids.
abstract: Sex steroids modulate growth hormone (GH) secretion and action. Estrogen attenuates GH action in a dose- and route-dependent manner by inhibiting GH-regulated endocrine function of the liver. Testosterone amplifies the metabolic action of GH while exhibiting similar but independent effects of its own. The strong modulatory effect of gonadal steroids on GH responsiveness provides insights into the biologic basis of sexual dimorphism in growth, development, and body composition and practical information for the clinical endocrinologist in the treatment of hypopituitary patients.
authors.affiliation: Pituitary Research Unit, Garvan Institute of Medical Research, 384 Victoria Street, Darlinghurst, NSW 2010, Sydney, Australia.
authors.forename: Udo J
authors.initials: UJ
authors.lastname: Meinhardt
authors.forename: Ken K Y
authors.initials: KK
authors.lastname: Ho
mesh_terms: D001823:Body Composition / Q000187:drug effects; D012739:Gonadal Steroid Hormones / Q000502:physiology*; D013006:Growth Hormone / Q000378:metabolism* / Q000494:pharmacology; D048788:Growth and Development / Q000187:drug effects; D006801:Humans; D009489:Neurosecretion / Q000502:physiology
chemical_list: D012739:Gonadal Steroid Hormones; D013006:Growth Hormone