Cited by 243Pancreatic function and diabetesDiabetes and associated disordersGenomics and Rare Diseases

Clinical and molecular characterisation of 300 patients with congenital hyperinsulinism

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Kapoor, Ritika R, Flanagan, Sarah E, Arya, Ved Bhushan, Shield, Julian P, Ellard, Sian, Hussain, Khalid·2013·European Journal of Endocrinology

Abstract

Background: Congenital hyperinsulinism (CHI) is a clinically heterogeneous condition. Mutations in eight genes (ABCC8,KCNJ11,GLUD1,GCK,HADH,SLC16A1,HNF4A and HNF1A) are known to cause CHI. Aim: To characterise the clinical and molecular aspects of a large cohort of patients with CHI. Methodology: Three hundred patients were recruited and clinical information was collected before genotyping.ABCC8 and KCNJ11 genes were analysed in all patients. Mutations in GLUD1,HADH,GCK and HNF4A genes were sought in patients with diazoxide-responsive CHI with hyperammonaemia (GLUD1), raised 3-hydroxybutyrylcarnitine and/or consanguinity (HADH), positive family history (GCK) or when CHI was diagnosed within the first week of life (HNF4A). Results: Mutations were identified in 136/300 patients (45.3%). Mutations in ABCC8/KCNJ11 were the commonest genetic cause identified (n=109, 36.3%). Among diazoxide-unresponsive patients (n=105), mutations in ABCC8/KCNJ11 were identified in 92 (87.6%) patients, of whom 63 patients had recessively inherited mutations while four patients had dominantly inherited mutations. A paternal mutation in the ABCC8/KCNJ11 genes was identified in 23 diazoxide-unresponsive patients, of whom six had diffuse disease. Among the diazoxide-responsive patients (n=183), mutations were identified in 41 patients (22.4%). These include mutations in ABCC8/KCNJ11(n=15),HNF4A(n=7),GLUD1(n=16) and HADH(n=3). Conclusions: A genetic diagnosis was made for 45.3% of patients in this large series. Mutations in the ABCC8 gene were the commonest identifiable cause. The vast majority of patients with diazoxide-responsive CHI (77.6%) had no identifiable mutations, suggesting other genetic and/or environmental mechanisms.

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  • A rare pathogenic variant in ABCC8 that causes congenital hyperinsulinism was incorrectly genotyped as homozygous in 43% (9/21) of Personal Genome Project individuals.

    “A rare pathogenic variant in ABCC8 that causes congenital hyperinsulinism was incorrectly genotyped as homozygous in 43% (9/21) of individuals.”

    From Use of SNP chips to detect rare pathogenic variants: retrospective, population based diagnostic evaluation (2021) · cites this paper as [29]

    The Results section, “Analysis of ABCC8 gene mutations” (page unavailable), identifies ABCC8 mutations in patients with congenital hyperinsulinism. It does not report that 9 of 21 individuals were incorrectly genotyped as homozygous, or examine Personal Genome Project individuals; that central part of the claim is unsupported. (LLM, conf=0.85)

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  • A rare pathogenic variant in ABCC8 that causes congenital hyperinsulinism is incorrectly genotyped in 43% (9/21) of PGP individuals.

    “A rare pathogenic variant in ABCC8 that causes congenital hyperinsulinism [29] is incorrectly genotyped in 43% (9/21) of individuals.”

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Research works printed but not linked: 1

  1. Eds C Stanley & DD de Leon. In Monogenic Hyperinsulinemic Hypoglycemia Disorders (Frontiers in Diabetes). Philadelphia: Karger, 2012.

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Authors
Kapoor, R. R., Flanagan, S. E., Arya, V. B., Shield, J. P., Ellard, S., & Hussain, K.
Affiliations
  • Great Ormond Street Hospital (GB)
  • University of Exeter (GB)
Corresponding author
Hussain, Khalid
Venue
European Journal of Endocrinology
Published
2013-04
Volume
168
Issue
4
Pages
557-564
ISSN
  • 0804-4643 (ISSN-L)
  • 1479-683X
OpenAlex
W2111189973
Cited by
243
References
81
Citations by year
2026: 14 · 2025: 12 · 2024: 17 · 2023: 19 · 2022: 25 · 2021: 23 · 2020: 21 · 2019: 20 · 2018: 13 · 2017: 12 · 2016: 12 · 2015: 27 · 2014: 22 · 2013: 6
FWCI
22.03
Type
journal article
Language
en
Open access
Locations
  • European Journal of Endocrinology (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Bristol Research (University of Bristol) (submittedVersion)
Funders
  • Wellcome Trust (081188/A/06/Z)
  • Society for Endocrinology
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
congenital hyperinsulinism, ABCC8, KCNJ11, HNF4α, GLUD1, hydroxyacyl-CoA dehydrogenase, glucokinase, MCT1, genetic diagnosis, recessive inheritance, paternal mutations, diffuse hyperinsulinism, hyperammonemia, consanguinity, genotype-phenotype correlation
MeSH terms
Kcnj11 Channel, Diazoxide, Female, Humans, Infant, Infant, Newborn, Male, Mutation, Receptors, Drug, Cohort Studies, ATP-Binding Cassette Transporters, Potassium Channels, Inwardly Rectifying, Congenital Hyperinsulinism, Sulfonylurea Receptors

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