Genetic and environmental interactions modify the risk of diabetes-related autoimmunity by 6 years of age: The teddy study

Jeffrey P. Krischer, Kristian F. Lynch, Ake Lernmark, William A. Hagopian, Marian J. Rewers, Jin-Xiong She, Jorma Toppari, Anette G. Ziegler, Beena Akolkar

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

OBJECTIVE We tested the associations between genetic background and selected environmental exposures with respect to islet autoantibodies and type 1 diabetes. RESEARCH DESIGN AND METHODS Infants with HLA-DR high-risk genotypes were prospectively followed for diabetesrelated autoantibodies. Single nucleotide polymorphisms (SNPs) came from the Illumina ImmunoChip and environmental exposure data were by parental report. Children were followed to age 6 years. RESULTS Insulin autoantibodies occurred earlier than GAD antibody (GADA) and then declined, while GADA incidence rose and remained constant (significant in HLA-DR4 but not in the DR3/3 children). The presence of SNPs rs2476601 (PTPN22) and rs2292239 (ERBB3) demonstrated increased risk of both autoantibodies to insulin (IAA) only and GADA only. SNP rs689 (INS) was protective of IAA only, but not of GADA only. The rs3757247 (BACH2) SNP demonstrated increased risk of GADA only. Male sex, father or sibling as the diabetic proband, introduction of probiotics under 28 days of age, and weight at age 12 monthswere associated with IAA only, but only father as the diabetic proband and weight at age 12 months were associated with GADA only. Mother as the diabetic proband was not a significant risk factor. CONCLUSIONS These results show clear differences in the initiation of autoimmunity according to genetic factors and environmental exposures that give rise to IAAorGADA as the first appearing indication of autoimmunity.

Original languageEnglish (US)
Pages (from-to)1194-1202
Number of pages9
JournalDiabetes Care
Volume40
Issue number9
DOIs
StatePublished - Sep 1 2017

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Autoimmunity
Autoantibodies
Single Nucleotide Polymorphism
Antibodies
Environmental Exposure
Fathers
HLA-DR4 Antigen
Insulin
Weights and Measures
Probiotics
HLA-DR Antigens
Type 1 Diabetes Mellitus
Siblings
Genotype
Mothers
Incidence

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Advanced and Specialized Nursing

Cite this

Krischer, J. P., Lynch, K. F., Lernmark, A., Hagopian, W. A., Rewers, M. J., She, J-X., ... Akolkar, B. (2017). Genetic and environmental interactions modify the risk of diabetes-related autoimmunity by 6 years of age: The teddy study. Diabetes Care, 40(9), 1194-1202. https://doi.org/10.2337/dc17-0238

Genetic and environmental interactions modify the risk of diabetes-related autoimmunity by 6 years of age : The teddy study. / Krischer, Jeffrey P.; Lynch, Kristian F.; Lernmark, Ake; Hagopian, William A.; Rewers, Marian J.; She, Jin-Xiong; Toppari, Jorma; Ziegler, Anette G.; Akolkar, Beena.

In: Diabetes Care, Vol. 40, No. 9, 01.09.2017, p. 1194-1202.

Research output: Contribution to journalArticle

Krischer, JP, Lynch, KF, Lernmark, A, Hagopian, WA, Rewers, MJ, She, J-X, Toppari, J, Ziegler, AG & Akolkar, B 2017, 'Genetic and environmental interactions modify the risk of diabetes-related autoimmunity by 6 years of age: The teddy study', Diabetes Care, vol. 40, no. 9, pp. 1194-1202. https://doi.org/10.2337/dc17-0238
Krischer, Jeffrey P. ; Lynch, Kristian F. ; Lernmark, Ake ; Hagopian, William A. ; Rewers, Marian J. ; She, Jin-Xiong ; Toppari, Jorma ; Ziegler, Anette G. ; Akolkar, Beena. / Genetic and environmental interactions modify the risk of diabetes-related autoimmunity by 6 years of age : The teddy study. In: Diabetes Care. 2017 ; Vol. 40, No. 9. pp. 1194-1202.
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