Inhibin A Production after Gonadotropin Stimulus: A New Method to Detect Ovarian Tissue in Ovotesticular Disorder of Sex Development

Autor(es)

Steinmetz, L. ^[1] ; Rocha, M. N. ^[2] ; Longui, C. A. ^[2] ; Dichtchekenian, V. ^[1] ; Setian, N. ^[1] ; Damiani, D. ^{[3, 1]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sch Med, Hosp Clin, Inst Crianca, Pediat Endocrinol Unit, BR-01229010 Sao Paulo - Brazil

^[2] Santa Casa SP Fac Med Sci, Dept Pediat, Pediat Endocrinol Unit, Sao Paulo - Brazil

^[3] Univ Nove Julho, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: HORMONE RESEARCH; v. 71, n. 2, p. 94-99, 2009.
• Citações Web of Science: 8

Resumo

Background/Aims: While laboratory methods for the detection of testicular tissue are well standardized, currently there is no available test to demonstrate the presence of ovarian tissue. We evaluated the effectiveness of gonadal stimulation with luteinizing hormone (LH)/follicle-stimulating hormone (FSH) for the detection of ovarian tissue in patients with disorders of sex development (DSD). Methods: Ten patients with congenital adrenal hyperplasia (CAH) as ovarian-positive controls, 10 with cryptorchidism (ovarian-negative controls), 13 patients with DSD of no defined etiology and 7 patients with ovotesticular DSD (true hermaphroditism, TH) were included in the study. They underwent a daily injection of both LH and FSH on 3 consecutive days. LH, FSH, estradiol, testosterone and inhibin A were measured before treatment, 24 h after the 1st dose and 24 h after the 3rd dose. Results: Estradiol increased in all CAH and TH patients, with a median value of 155.1 and 92.6 pg/ml, respectively, after the 3rd injection. Inhibin A also increased in all CAH and TH patients, with a median value of 70.4 and 32.2 pg/ml, respectively, after the 3rd injection. There was no change in these hormones in the other groups. Conclusion: The LH/FSH stimulation test might be a useful method to detect the presence of ovarian tissue. Copyright (C) 2009 S. Karger AG, Basel (AU)

• Processo FAPESP: 04/02168-7 - Geração de inibina A após estímulo gonadotrófico: novo método de detecção de tecido ovariano em pacientes com anomalia da diferenciação sexual
• Beneficiário: Durval Damiani
• Modalidade de apoio: Auxílio à Pesquisa - Regular