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A Tunisian patient with two rare syndromes: triple a syndrome and congenital hypogonadotropic hypogonadism.

Résumé : The coexistence of triple A syndrome (AAAS) and congenital hypogonadotropic hypogonadism (CHH) has so far not been reported in the literature. This study aimed to characterize at the clinical and genetic level one patient presenting an association of AAAS and CHH in order to identify causal mutations.Clinical and endocrinal investigations were performed and followed by mutational screening of candidate genes. At the age of 18, the patient presented sexual infantilism, a micropenis and gynecomastia. No mutation was revealed in GnRHR, TACR3/TAC3, PROK2/PROKR2 and PROP1 genes, except a homozygous intronic variation (c.244 + 128C>T; dbSNP: rs350129) in the KISS1R gene, which is likely nondeleterious. A homozygous splice-donor site mutation (IVS14 + 1G>A) was found in the AAAS gene. This mutation, responsible for AAAS, is a founder mutation in North Africa.This is the first report on a Tunisian patient with the coexistence of AAAS and CHH. The diagnosis of CHH should be taken in consideration in patients with Allgrove syndrome and who carry the IVS14 + 1G>A mutation as this might challenge appropriate genetic counseling.
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Submitted on : Sunday, October 2, 2016 - 11:19:17 PM
Last modification on : Wednesday, October 28, 2020 - 9:52:04 AM




Lamia Ben Abdallah, youssef Lakhoua, Majdi Nagara, Karima Khiari, Sahar Elouej, et al.. A Tunisian patient with two rare syndromes: triple a syndrome and congenital hypogonadotropic hypogonadism.. Hormone Research in Paediatrics, Karger, 2014, 82 (5), pp.338-43. ⟨10.1159/000365888⟩. ⟨pasteur-01375104⟩



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