PRISCILA SALES BARROSO
Projetos de Pesquisa
Unidades Organizacionais
PAHC, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/42 - Laboratório de Hormônios e Genética Molecular, Hospital das Clínicas, Faculdade de Medicina
LIM/42 - Laboratório de Hormônios e Genética Molecular, Hospital das Clínicas, Faculdade de Medicina
3 resultados
Resultados de Busca
Agora exibindo 1 - 3 de 3
conferenceObject Peripheral Precocious Puberty in Girls with Mccune-Albright Syndrome: Treatment and Outcomes(2015) BARROSO, P.; RAMOS, C.; SILVA, M.; LIMA, L.; BESSA, D.; ARNHOLD, I; MENDONCA, B.; LATRONICO, A.; BRITO, V- Spontaneous fertility in a male patient with testotoxicosis despite suppression of FSH levels(2018) CUNHA-SILVA, M.; BRITO, V. N.; MACEDO, D. B.; BESSA, D. S.; RAMOS, C. O.; LIMA, L. G.; BARROSO, P. S.; ARNHOLD, I. J. P.; SEGALOFF, D. L.; MENDONCA, B. B.; LATRONICO, A. C.Testotoxicosis is a rare cause of peripheral precocious puberty in boys caused by constitutively activating mutations of the LHCG receptor. Affected males usually have normal gonadotropin profiles and fertility in their adult life. Here, we described the long-term follow-up of a 24-year-old young man with severe testotoxicosis due to a de novo activating mutation in the third transmembrane helix of the LHCGR (p. Leu457Arg). This patient was treated with different medications, including medroxyprogesterone acetate, ketoconazole, cyproterone acetate and aromatase inhibitor from age 2.5 to 9.5 years. His basal and GnRH-stimulated gonadotropin levels were continually suppressed during and after medical treatment. At adulthood, extremely high serum testosterone levels (>35 nmol/L), undetectable gonadotropin levels (LH < 0.15 IU/L and FSH < 0.6 IU/L) and oligozoospermia were evidenced. Despite his suppressed FSH levels and an unfavorable spermogram, the patient fathered a healthy girl and biological paternity was confirmed through analysis of microsatellites. Spontaneous fertility in a young man with severe testotoxicosis and chronic suppression of FSH levels reinforces the key role of high intratesticular testosterone levels in human spermatogenesis.
conferenceObject Long-Term Evaluation of Patients with Testotoxicosis(2015) SILVA, M. Cunha; BRITO, V Nahime; BESSA, D.; RAMOS, C.; LIMA, L.; BARROSO, P.; ARNHOLD, I; MENDONCA, B.; LATRONICO, A.