Cited by 130Pancreatic function and diabetesDiabetes and associated disordersDiabetes Management and Research

A novel syndrome of autosomal-dominant hyperinsulinemic hypoglycemia linked to a mutation in the human insulin receptor gene.

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Højlund, Kurt, Hansen, Torben, Lajer, Maria, Henriksen, Jan Erik, Levin, Klaus, Lindholm, Jörgen, Pedersen, Oluf, Beck-Nielsen, Henning·2004·Diabetes

Abstract

Recently, various subtypes of familial hyperinsulinemic hypoglycemia with an autosomal-dominant inheritance have been etiologically characterized. In the present study, we have delineated the genetics and metabolic phenotype of a novel form of hypoglycemia in a large pedigree with an apparent autosomal-dominant transmission. After initial investigations of the proband, her mother, and a sister, the study was extended to 19 family members in three generations. Glucose tolerance was assessed by a 5-h oral glucose tolerance test (OGTT) and insulin sensitivity by euglycemic-hyperinsulinemic clamp in six affected family members and six control subjects. To identify the genetic cause of hypoglycemia, linkage analysis and mutation analysis of genomic DNA from all family members were performed. All affected family members were characterized by postprandial hypoglycemia, fasting hyperinsulinemia, and an elevated serum insulin-to-C-peptide ratio. The 5-h OGTT demonstrated hyperinsulinemic hypoglycemia, and the clamp studies showed reduced insulin sensitivity and clearance of serum insulin in affected family members compared with control subjects. Linkage analysis and subsequent mutation screening revealed a missense mutation (Arg1174Gln) in the tyrosine kinase domain of the insulin receptor gene that cosegregated with the disease phenotype (logarithm of odds [LOD] score 3.21). In conclusion, we report a novel syndrome of autosomal-dominant hyperinsulinemic hypoglycemia. The findings demonstrate the coexistence of severe postprandial hypoglycemia, insulin resistance, and impaired insulin clearance and suggest that hypoglycemia should be considered as a phenotype linked to heterozygote mutations in the insulin receptor gene.

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Authors
Højlund, K., Hansen, T., Lajer, M., Henriksen, J. E., Levin, K., Lindholm, J., Pedersen, O., & Beck-Nielsen, H.
Affiliations
  • Odense University Hospital (DK)
  • Steno Diabetes Center Copenhagen (DK)
  • Department of Medicine, Division of Endocrinology, Holstebro Hospital, Holstebro, Denmark
  • Diabetes Research Centre, Department of Endocrinology, Odense University Hospital, Odense, Denmark
Venue
Diabetes
Published
2004-06-01
Volume
53
Issue
6
Pages
1592-1598
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2124427868
Cited by
130
References
34
Citations by year
2026: 2 · 2025: 4 · 2024: 6 · 2023: 3 · 2022: 6 · 2021: 7 · 2020: 5 · 2019: 5 · 2018: 8 · 2017: 9 · 2016: 7 · 2015: 6 · 2014: 7 · 2013: 8 · 2012: 6
FWCI
5.37
Type
journal article
Language
en
Open access
Locations
  • Diabetes (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion)
  • University of Southern Denmark Research Portal (University of Southern Denmark) (publishedVersion)
Funders
  • Novo Nordisk
  • Odense Universitetshospital
  • Novo Nordisk Fonden
  • Diabetesforeningen
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
Keywords
insulin receptor gene, postprandial hypoglycemia, insulin resistance, insulin clearance, genetic linkage, heterozygous mutation
MeSH terms
Adolescent, Adult, Aged, Aged, 80 and over, Child, Glucose Tolerance Test, Haplotypes, Heterozygote, Humans, Hyperinsulinism, Hypoglycemia, Genetic Linkage, Lod Score, Middle Aged, Mutation, Pedigree, Phenotype, Receptor, Insulin, Glucose Clamp Technique, Exercise, Point Mutation

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