Cited by 53Genetics and Neurodevelopmental DisordersGenomics and Rare DiseasesGenomic variations and chromosomal abnormalities

The clinical presentation caused by truncating CHD8 variants

Douzgou, Sofia, Liang, Hui Wen, Metcalfe, Kay, Somarathi, Suresh, Tischkowitz, Marc, Mohamed, Wafik, Kini, Usha, McKee, Shane +6 more·2019·Clinical Genetics

Abstract

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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Crossref · 10.1111/cge.13554

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  • Douzgou and colleagues reported that among 25 individuals with protein-truncating CHD8 variants, 17 (68%) had ID, and 21 of 25 (84%) had a diagnosis of ASD.

    “Similarly, Douzgou and colleagues reported that among 25 individuals with protein-truncating CHD8 variants, 17 (68%) had ID (81% of the 21 with available clinical information about intellectual functioning).24 Twenty-one of the 25 (84%) had a diagnosis of ASD.24”

    From Insufficient Evidence for “Autism-Specific” Genes (2020) · cites this paper as [24]

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Authors
Douzgou, S., Liang, H. W., Metcalfe, K., Somarathi, S., Tischkowitz, M., Mohamed, W., Kini, U., McKee, S., Yates, L., Bertoli, M., Lynch, S. A., Holder, S., Study, T. D. D. D., & Banka, S.
Affiliations
  • Manchester Academic Health Science Centre (GB)
  • University of Manchester (GB)
  • University of Cambridge (GB)
  • Oxford Centre for Genomic Medicine Oxford University Hospitals NHS Foundation Trust Oxford UK
  • University of Oxford (GB)
  • Belfast Health and Social Care Trust (GB)
  • NHS Greater Glasgow and Clyde (GB)
  • West of Scotland Regional Genetics Service, NHS Greater Glasgow and Clyde Institute of Medical Genetics, Yorkhill Hospital Glasgow UK
  • Temple Street Children's University Hospital (IE)
  • North West Thames Regional Genetics Service London UK
Corresponding author
Douzgou, Sofia
Venue
Clinical Genetics
Publisher
Wiley
Published
2019-05-14
Volume
96
Issue
1
Pages
72-84
ISSN
  • 0009-9163 (ISSN-L)
  • 1399-0004
OpenAlex
W2936777733
Cited by
52
References
39
Citations by year
2026: 6 · 2025: 7 · 2024: 8 · 2023: 5 · 2022: 3 · 2021: 12 · 2020: 8 · 2019: 3
FWCI
3.90
Type
journal article
Language
en
Open access
closed
Locations
  • Clinical Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • Research Explorer (The University of Manchester) (publishedVersion)
Funders
  • Wellcome Sanger Institute (WT098051)
  • Wellcome and the Department of Health
  • Health Innovation Challenge Fund (HICF-1009-003)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
Keywords
CHD8, truncating mutations, haploinsufficiency, intellectual disability, autism spectrum disorder, macrocephaly, tall stature, developmental delay, seizures, hypotonia, sleep disorders, gastrointestinal problems, facial dysmorphism
MeSH terms
Adolescent, Alleles, Child, Child, Preschool, DNA-Binding Proteins, Female, Genotype, Humans, Male, Phenotype, Transcription Factors, Genetic Variation, Facies, Amino Acid Substitution, Genetic Predisposition to Disease, Genetic Association Studies, Neurodevelopmental Disorders

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