A girl with West syndrome and autistic features harboring a de novo TBL1XR1 mutation.
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Saitsu H, Tohyama J, Walsh T, Kato M, Kobayashi Y, Lee M, Tsurusaki Y, Miyake N, Goto Y, Nishino I, Ohtake A, King MC, Matsumoto N
A girl with West syndrome and autistic features harboring a de novo TBL1XR1 mutation.
J Hum Genet. 2014 Oct;59(10):581-3. doi: 10.1038/jhg.2014.71. Epub 2014 Aug 7.
- PubMed ID
- 25102098 [ View in PubMed]
- Abstract
Recently, de novo mutations in TBL1XR1 were found in two patients with autism spectrum disorders. Here, we report on a Japanese girl presenting with West syndrome, Rett syndrome-like and autistic features. Her initial development was normal until she developed a series of spasms at 5 months of age. Electroencephalogram at 7 months showed a pattern of hypsarrhythmia, which led to a diagnosis of West syndrome. Stereotypic hand movements appeared at 8 months of age, and autistic features such as deficits in communication, hyperactivity and excitability were observed later, at 4 years and 9 months. Whole exome sequencing of the patient and her parents revealed a de novo TBL1XR1 mutation [c.209 G>A (p.Gly70Asp)] occurring at an evolutionarily conserved amino acid in an F-box-like domain. Our report expands the clinical spectrum of TBL1XR1 mutations to West syndrome with Rett-like features, together with autistic features.