Prediction of the development of islet autoantibodies through integration of environmental, genetic, and metabolic markers
Journal Article
·
· Journal of Diabetes (Online)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of Colorado, Aurora, CO (United States). Anschutz Medical Campus
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Univ. of Colorado, Aurora, CO (United States). Anschutz Medical Campus
- Univ. of Virginia, Charlottesville, VA (United States)
The Environmental Determinants of the Diabetes in the Young (TEDDY) study has prospectively followed, from birth, children at increased genetic risk of type 1 diabetes. We evaluated the potential of machine learning to identify new biomarkers that predict imminent (within 6 months) development of persistent islet autoantibodies to insulin, GAD or IA-2 in TEDDY participants through integration of time-invariant risk factors with time-varying metabolomics. The predictive modeling was initiated with over 220 potential biomarkers; through ensemble-based feature evaluation, the optimal model included 42 biomarkers, returning a cross-validated receiver operating characteristic area under the curve of 0.74. The model identified a principal set of 20 time-invariant markers, including 16 single nucleotide polymorphisms and two HLA-DR genotypes, gestational age, and exposure to a prebiotic formula. Integration of the metabolome identified 22 high-priority metabolites and lipids, including adipic acid and ceramide d42:0, that predicted development of islet autoantibodies, dependent upon the time horizon. The majority (86%) of metabolites that predicted development of islet autoantibodies belonged to 3 pathways: lipid oxidation, phospholipase A2 signaling, and pentose phosphate pathway. TEDDY data suggest that these metabolic processes may play a role in triggering islet autoimmunity.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- National Institutes of Health (NIH); USDOE
- Grant/Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1756070
- Report Number(s):
- PNNL-SA--146734
- Journal Information:
- Journal of Diabetes (Online), Journal Name: Journal of Diabetes (Online) Journal Issue: 2 Vol. 13; ISSN 1753-0407
- Publisher:
- Wiley and Ruijin Hospital, Shanghai Jiaotong University School of MedicineCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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