Cited by 264Diabetes and associated disordersDiabetes Management and ResearchPancreatic function and diabetes

Age-related islet autoantibody incidence in offspring of patients with type 1 diabetes

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the BABYDIAB-BABYDIET Study Group, Ziegler, A.-G., Bonifacio, E.·2012·Diabetologia

Abstract

Aims/hypothesis Seroconversion to islet autoantibodies precedes type 1 diabetes. This study aimed to identify periods of high seroconversion incidence, which could be targeted for mechanistic and therapeutic studies. Methods Incidence of islet autoantibodies was calculated in 1,650 genetically at-risk children followed with measurements of islet autoantibodies and thyroid autoantibodies at age 9 months and 2, 5, 8, 11, 14 and 17 years. Peak incidence periods were confirmed in a second cohort of 150 children followed until age 6 years with three-monthly samples up to age 3 years. Results Islet autoantibody incidence (per 1,000 person-years) was 18.5 until age 9 months, 21 from 9 months to 2 years and <10 for intervals after age 2 years. The second cohort confirmed peak incidence around age 9 months and demonstrated an absence of seroconversion before this age. Seroconversion to insulin autoantibodies occurred earlier than other autoantibodies (p<0.01 against glutamic acid decarboxylase [GAD]-, insulinoma-associated protein 2 [IA-2]- and zinc transporter 8 [ZnT8]-autoantibodies). Early peak seroconversion incidence was most evident in children with high-risk HLA DR3/4-DQ8 or DR4/4-DQ8 genotypes. Conclusion The age period 9 months to 2 years is associated with a high incidence of activation of type 1 diabetes associated autoimmunity in genetically at-risk children and should be targeted for effective primary prevention strategies.

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  • These autoantibodies can appear as early as 6 months of age, with a peak incidence before 2 years of age in genetically susceptible individuals; thus, they are present months to years before symptomatic onset.

    “These autoantibodies can appear as early as 6 months of age, with a peak incidence before 2 years of age in genetically susceptible individuals;66 thus, they are present months to years before symptomatic onset.”

    From Type 1 diabetes (2014) · cites this paper as [66]

    The Results and Discussion report peak autoantibody incidence from 9 months to 2 years in genetically at-risk children. The claim that autoantibodies can appear as early as 6 months is not established by this study: the Discussion reports no seroconversion at 3 or 6 months in the BABYDIET cohort, while cautioning that its size cannot rule out occurrence then. The citation precedes the sentence’s concluding inference about symptomatic onset, so that inference is not part of the attributed claim. (LLM, conf=0.88)

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Authors
the BABYDIAB-BABYDIET Study Group, Ziegler, A.-G., & Bonifacio, E.
Affiliations
Helmholtz Munich (DE)
Corresponding author
Ziegler, A.-G.
Venue
Diabetologia
Published
2012-01-31
Volume
55
Issue
7
Pages
1937-1943
ISSN
  • 0012-186X (ISSN-L)
  • 1432-0428
OpenAlex
W2030685032
Cited by
264
References
30
Citations by year
2026: 10 · 2025: 16 · 2024: 21 · 2023: 24 · 2022: 14 · 2021: 18 · 2020: 10 · 2019: 14 · 2018: 27 · 2017: 13 · 2016: 32 · 2015: 27 · 2014: 15 · 2013: 18 · 2012: 5
FWCI
12.53
Type
journal article
Language
en
Open access
Locations
  • Diabetologia (publishedVersion)
  • PubMed (publishedVersion)
  • mediaTUM (Technical University of Munich) (submittedVersion)
  • Site cant be reached (submittedVersion)
Funders
  • European Commission (202013)
  • Deutsche Forschungsgemeinschaft (FZ 111, /14-1)
  • Bundesministerium für Bildung und Forschung (FKZ 01GI0805‐07, FKZ 01GI0805, 01GI0805, 01GI0805-07)
  • Helmholtz Zentrum München
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
Keywords
type 1 diabetes, islet autoantibodies, seroconversion, insulin autoantibodies, glutamic acid decarboxylase antibodies, IA-2 autoantibodies, ZnT8 autoantibodies, thyroid autoantibodies, primary prevention
MeSH terms
Adolescent, Autoantibodies, Child, Child, Preschool, Diabetes Mellitus, Type 1, Female, Genotype, Germany, HLA-D Antigens, Humans, Infant, Longitudinal Studies, Male, Prediabetic State, Cohort Studies, Incidence, Polymerase Chain Reaction, Child of Impaired Parents, Age of Onset, Disease Progression, Genetic Predisposition to Disease

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