Abstract:
BACKGROUND/AIM:TTF1 and EAP1 are transcription factors that modulate gonadotropin-releasing hormone expression. We investigated the contribution of TTF1 and EAP1 genes to central pubertal disorders. PATIENTS AND METHODS:133 patients with central pubertal disorders were studied: 86 with central precocious puberty and 47 with normosmic isolated hypogonadotropic hypogonadism. The coding region of TTF1 and EAP1 were sequenced. Variations of polyglutamine and polyalanine repeats in EAP1 were analyzed by GeneScan software. Association of TTF1 and EAP1 to genes implicated in timing of puberty was investigated by meta-network framework GeneMANIA and Cytoscape software. RESULTS:Direct sequencing of the TTF1 did not reveal any mutation or polymorphisms. Four EAP1 synonymous variants were identified with similar frequencies among groups. The most common EAP1 5'-distal polyalanine genotype was the homozygous 12/12, but the genotype 12/9 was identified in 2 central precocious puberty sisters without functional alteration in EAP1 transcriptional activity. TTF1 and EAP1 were connected, via genetic networks, to genes implicated in the control of menarche. CONCLUSION:No TTF1 or EAP1 germline mutations were associated with central pubertal disorders. TTF1 and EAP1 may affect puberty by changing expression in response to other members of puberty-associated gene networks, or by differentially affecting the expression of gene components of these networks.
journal_name
Horm Res Paediatrjournal_title
Hormone research in paediatricsauthors
Cukier P,Wright H,Rulfs T,Silveira LF,Teles MG,Mendonca BB,Arnhold IJ,Heger S,Latronico AC,Ojeda SR,Brito VNdoi
10.1159/000354643subject
Has Abstractpub_date
2013-01-01 00:00:00pages
257-66issue
4eissn
1663-2818issn
1663-2826pii
000354643journal_volume
80pub_type
临床试验,杂志文章abstract::3-M syndrome is an autosomal recessive primordial growth disorder characterised by severe postnatal growth restriction caused by mutations in CUL7, OBSL1 or CCDC8. Clinical characteristics include dysmorphic facial features and fleshy prominent heels with a variable degree of radiological abnormalities. CUL7 is a stru...
journal_title:Hormone research in paediatrics
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journal_title:Hormone research in paediatrics
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journal_title:Hormone research in paediatrics
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journal_title:Hormone research in paediatrics
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journal_title:Hormone research in paediatrics
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