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Lookup NU author(s): Dr Edwin Williams, Dr Michael Wright, Dr Andrea Clarke
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Mutations in the CDKL5 gene (also known as STK9) have recently been shown to cause early onset epilepsy and severe mental retardation (ISSX or West syndrome). Patients with CDKL5 mutations sometimes also show features similar to those seen in Rett Syndrome (RTT). We have screened the CDKL5 gene in 94 patients with RTT or a RTT-like phenotype who had tested negative for MECP2 mutations (13 classical RTT female subjects, 25 atypical RTT female subjects, 40 RTT-like female and 16 RTT-like male subjects; 33 of the patients had early onset seizures). Novel pathogenic CDKL5 mutations were identified in three girls, two of whom had initially been diagnosed with the early onset seizure variant of RTT and the other with early onset seizures and some features of RTT. In addition, the 33 patients with early seizures were screened for the most common mutations in the ARX gene but none were found. Combining our three new cases with the previously published cases, 13/14 patients with CDKL5 mutations presented with seizures before the age of 3 months. © 2005 Nature Publishing Group. All rights reserved.
Author(s): Evans JC, Archer HL, Colley JP, Ravn K, Nielsen JB, Kerr A, Williams E, Christodoulou J, Gecz J, Jardine PE, Wright MJ, Pilz DT, Lazarou L, Cooper DN, Sampson JR, Butler R, Whatley SD, Clarke AJ
Publication type: Article
Publication status: Published
Journal: European Journal of Human Genetics
Year: 2005
Volume: 13
Issue: 10
Pages: 1113-1120
ISSN (print): 1018-4813
ISSN (electronic): 1476-5438
Publisher: Nature Publishing Group
URL: http://dx.doi.org/10.1038/sj.ejhg.5201451
DOI: 10.1038/sj.ejhg.5201451
PubMed id: 16015284
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