Abstract:
:Rett syndrome (RTT) is an X-linked neurodevelopmental disorder caused by mutations in the MECP2 gene, with apparent lethality in male embryos. However, recent studies indicate that mutations in the MECP2 gene can cause congenital encephalopathy, an Angelman-like phenotype and even nonspecific mental retardation in males. We report on a 10-year-old boy with moderate mental retardation, hypotonia, obesity and gynaecomastia and a de novo 2-bp deletion in the MECP2 gene that resulted in a frameshift and premature stop codon. As some of the clinical features were suggestive of the Prader-Willi syndrome, it might be worthwhile screening for MECP2 mutations in patients with an atypical Prader-Willi phenotype but without the characteristic abnormalities on chromosome 15q. This report contributes to the phenotypic knowledge of male patients with MECP2 mutations. Moreover, this is the first reported male case of a de novo MECP2 mutation.
journal_name
Clin Genetjournal_title
Clinical geneticsauthors
Kleefstra T,Yntema HG,Oudakker AR,Romein T,Sistermans E,Nillessen W,van Bokhoven H,de Vries BB,Hamel BCdoi
10.1034/j.1399-0004.2002.610507.xsubject
Has Abstractpub_date
2002-05-01 00:00:00pages
359-62issue
5eissn
0009-9163issn
1399-0004pii
cge610507journal_volume
61pub_type
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pub_type: 评论,杂志文章
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