Disease:Defects in FSHB are a cause of isolated follicle-stimulating hormone deficiency (IFSHD) [MIM:229070]. Selective follicle-stimulating hormone deficiency is an uncommon cause of infertility , producing amenorrhea and hypogonadism in women and oligo or azoospermia with normal testosterone levels in normally virilised men. ,Function:Stimulates development of follicle and spermatogenesis in the reproductive organs. ,online information:Follicle-stimulating hormone entry ,online information:The Singapore human mutation and polymorphism database ,pharmaceutical:Available under the names Gonal-F or Metrodin HP (Serono) and Puregon (Organon) . Used in the treatment of infertility in women with proven hypopituitarism or who have not responded to clomifene; or in superovulation treatment for assisted conception (such as in vitro fertilization) . Metrodin HP is also used in the treatment of hypogonadotrophic hypogonadism in men for the stimulation of spermatogenesis. ,similarity:Belongs to the glycoprotein hormones subunit beta family. ,subunit:Heterodimer of a common alpha chain and a unique beta chain which confers biological specificity to thyrotropin , lutropin , follitropin and gonadotropin. ,
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