期刊
CLINICAL GENETICS
卷 96, 期 1, 页码 72-84出版社
WILEY
DOI: 10.1111/cge.13554
关键词
CHD8; autism; macrocephaly; OGID; overgrowth
资金
- Wellcome Sanger Institute [WT098051]
- Wellcome
- Health Innovation Challenge Fund [HICF-1009-003]
- Department of Health
- MRC [MC_PC_16018] Funding Source: UKRI
Variants in the chromodomain helicase DNA-binding protein 8 (CHD8) have been associated with intellectual disability (ID), autism spectrum disorders (ASDs) and overgrowth and CHD8 is one of the causative genes for OGID (overgrowth and ID). We investigated 25 individuals with CHD8 protein truncating variants (PTVs), including 10 previously unreported patients and found a male to female ratio of 2.7:1 (19:7) and a pattern of common features: macrocephaly (62.5%), tall stature (47%), developmental delay and/or intellectual disability (81%), ASDs (84%), sleep difficulties (50%), gastrointestinal problems (40%), and distinct facial features. Most of the individuals in this cohort had moderate-to-severe ID, some had regression of speech (37%), seizures (27%) and hypotonia (27%) and two individuals were non-ambulant. Our study shows that haploinsufficiency of CHD8 is associated with a distinctive OGID syndrome with pronounced autistic traits and supports a sex-dependent penetrance of CHD8 PTVs in humans.
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