期刊
HUMAN MOLECULAR GENETICS
卷 20, 期 17, 页码 3366-3375出版社
OXFORD UNIV PRESS
DOI: 10.1093/hmg/ddr243
关键词
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资金
- Simons Foundation (SFARI) [128234]
- Howard Hughes Medical Institute
- Grants-in-Aid for Scientific Research [23810025] Funding Source: KAKEN
Autism spectrum disorders (ASDs) are a heterogeneous group of neuro-developmental disorders. While significant progress has been made in the identification of genes and copy number variants associated with syndromic autism, little is known to date about the etiology of idiopathic non-syndromic autism. Sanger sequencing of 21 known autism susceptibility genes in 339 individuals with high-functioning, idiopathic ASD revealed de novo mutations in at least one of these genes in 6 of 339 probands (1.8%). Additionally, multiple events of oligogenic heterozygosity were seen, affecting 23 of 339 probands (6.8%). Screening of a control population for novel coding variants in CACNA1C, CDKL5, HOXA1, SHANK3, TSC1, TSC2 and UBE3A by the same sequencing technology revealed that controls were carriers of oligogenic heterozygous events at significantly (P < 0.01) lower rate, suggesting oligogenic heterozygosity as a new potential mechanism in the pathogenesis of ASDs.
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