2011
DOI: 10.1530/eje-11-0119
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Relationship of CYP21A2 genotype and serum 17-hydroxyprogesterone and cortisol levels in a large cohort of Italian children with premature pubarche

Abstract: Objective: Premature pubarche (PP) is the most frequent sign of nonclassic congenital adrenal hyperplasia (NCCAH) due to 21-hydroxylase deficiency in childhood. The aim of this study was to assess the relationship between the CYP21A2 genotype and baseline and ACTH-stimulated 17-hydroxyprogesterone (17-OHP) and cortisol serum levels in patients presenting with PP. Patients and methods: A total of 152 Italian children with PP were studied. Baseline and ACTHstimulated 17-OHP and cortisol serum levels were measure… Show more

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Cited by 37 publications
(33 citation statements)
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“…Na populaç ão pediátrica há outros autores que defendem um nível basal de 17-OHP basal superior a 0,82 ng/ml como fortemente sugestivo do diagnóstico de HCSR-NC 2 . Ghizzoni et al 16 realizaram um estudo italiano que incluiu 152 crianç as com PP, das quais 55 tinham HCSR-NC. Quatro crianç as (7,3%) com PP e HCSR-NC apresentaram valor de 17-OHP basal < 2,0 ng/ml.…”
Section: Características Clínicas E Perfil Hormonal Basalunclassified
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“…Na populaç ão pediátrica há outros autores que defendem um nível basal de 17-OHP basal superior a 0,82 ng/ml como fortemente sugestivo do diagnóstico de HCSR-NC 2 . Ghizzoni et al 16 realizaram um estudo italiano que incluiu 152 crianç as com PP, das quais 55 tinham HCSR-NC. Quatro crianç as (7,3%) com PP e HCSR-NC apresentaram valor de 17-OHP basal < 2,0 ng/ml.…”
Section: Características Clínicas E Perfil Hormonal Basalunclassified
“…O cut-off de 17-OHP basal mais sensível e específico para diagnosticar HCSR-NC foi 2,82 ng/ml. O cut-off de 0,89 ng/ml conseguiu identificar 100% das crianç as com HCSR-NC, mas com perda significativa de especificidade 16 . Estes autores defendem que o valor basal de 17-OHP não é útil no diagnóstico de HCSR-NC em crianç as com PP e que a exclusão deste diagnóstico só é feita através da realizaç ão da prova de Synacthen 16 .…”
Section: Características Clínicas E Perfil Hormonal Basalunclassified
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“…Random 17-OH progesterone measurements may show values within the normal range [ 6 ]. The gold standard today therefore remains the ACTH stimulation test, which should identify 17-OH progesterone >1,500 ng/dl at the end of the test.…”
Section: Non-classical Cahmentioning
confidence: 99%