CASK aberrations in Ohtahara syndrome

Suppression-burst. Ohtahara Syndrome is a rare epileptic encephalopathy with onset in the first weeks of life. The typical EEG feature of Ohtahara Syndrome is suppression-burst activity, suggesting a profound disruption of cerebral function. Ohtahara Syndrome can be caused by severe brain malformations and neurometabolic disorders. In addition, mutations in ARX and STXBP1 are known causes of Ohtahara Syndrome. In a recent publication in Epilepsia, genetic alterations in CASK were identified in patients with Ohtahara Syndrome and cerebellar hypoplasia. Given that CASK mutations are the known cause for a complex X-chromosomal disorder, this report provides us with an interesting example of what happens when genes underlying distinct clinical dysmorphology syndromes cross over to the epilepsies. Continue reading