title: [Association of primary hypothyroidism with preconcious puberty. Presentation of clinical case and the effect of acute inhibition of thyrotropin on the gonadal activity].
abstract: An 8 2/12 year-old girl with acquired primary hypothyroidism and precociuos puberty is described. Thyroid hormone treatment resulted in the regression of the sexual development, but moderate asymptomatic papilledema appeared as a result of therapy. Serial vaginal smears and measurements of urinary estrogen excretion during acute thyrotropin (TSH) inhibition with 75 mug/day of triiodthyronine (T3), showed a rapid drop in ovaric estrogen production up to prepubertal stage at 17 days of T3 administration. Moreover, a group of children with untreated hypothyroidism was followed through the first 3 to 12 months of thyroid therapy and none developed signs of increased intracranial pressure. These findings as well as the possible pathophysiology involved in this association are discussed.
mesh_terms: D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007037:Hypothyroidism / Q000150:complications* / Q000175:diagnosis; D010211:Papilledema / Q000139:chemically induced; D011629:Puberty, Precocious / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy; D013972:Thyrotropin / Q000037:antagonists & inhibitors; D014284:Triiodothyronine / Q000009:adverse effects / Q000627:therapeutic use
chemical_list: D014284:Triiodothyronine; D013972:Thyrotropin
vernacular_title: Asociación de hipotiroidismo primario y pubertad precoz. Presentación de un caso clínico y estudio del efecto de la inhibición aguda de tirotropina sobre la actividad gonadal