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Early onset seizures and Rett-like features associated with mutations in CDKL5

Evans, Julie C., Archer, Hayley Louise, Colley, James, Ravn, Kirstine, Nielsen, Jytte Bieber, Kerr, Alison, Williams, Elizabeth, Christodoulou, John, Gécz, Jozef, Jardine, Philip E., Wright, Michael J., Pilz, Daniela, Lazarou, Lazarus, Cooper, David Neil ORCID:, Sampson, Julian Roy ORCID:, Butler, Rachel, Whatley, Sharon D. and Clarke, Angus John ORCID: 2005. Early onset seizures and Rett-like features associated with mutations in CDKL5. European Journal of Human Genetics 13 (10) , pp. 1113-1120. 10.1038/sj.ejhg.5201451

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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.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: Q Science > QH Natural history > QH426 Genetics
Uncontrolled Keywords: CDKL5, STK9, ARX, ISSX, West syndrome, Rett, epilepsy
Publisher: Nature Publishing Group
ISSN: 1018-4813
Last Modified: 06 Jul 2023 01:39

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