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Genetic analysis of gonadotropin-gonadal axis in boys: a twin study / 中华男科学杂志
National Journal of Andrology ; (12): 250-252, 2004.
Artigo em Chinês | WPRIM | ID: wpr-357037
ABSTRACT
<p><b>OBJECTIVE</b>To analyse the heritabilities of serum luteinizing hormone(LH), follicle-stimulating hormone (FSH), testosterone (T) and estradiol (E2) in twin boys, and to study the genetic contributions to gonadotropin-gonadal axis.</p><p><b>METHODS</b>A total of 51 pairs of male twins, 35 monozygotic (MZ) and 16 dizygotic(DZ) aged 5 to 11 years, were investigated. Serum gonadotropin and sex hormone were measured by radioimmunoassay. The twin zygosity was verified by determination of short tandem repeat amplified fragment length polymorphism systems. The genetic analysis was performed using intraclass correlation coefficient method.</p><p><b>RESULTS</b>The intraclass correlation coefficient was greater in the MZ twins than in the DZ twins. The estimated heritabilities were respectively LH 0.51, FSH 0.32, T 0.81, E2 0.41.</p><p><b>CONCLUSION</b>Genetic factors are major determinants of gonadotropin-gonadal axis in boys.</p>
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Hormônios Esteroides Gonadais / Sangue / Radioimunoensaio / Gonadotropinas Limite: Criança / Criança, pré-escolar / Humanos / Masculino Idioma: Chinês Revista: National Journal of Andrology Ano de publicação: 2004 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Hormônios Esteroides Gonadais / Sangue / Radioimunoensaio / Gonadotropinas Limite: Criança / Criança, pré-escolar / Humanos / Masculino Idioma: Chinês Revista: National Journal of Andrology Ano de publicação: 2004 Tipo de documento: Artigo