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Updated: Jan 13, 2026

Accelerated Type 1 Diabetes Induction in Mice by Adoptive Transfer of Diabetogenic CD4+ T Cells
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Accelerated Type 1 Diabetes Induction in Mice by Adoptive Transfer of Diabetogenic CD4+ T Cells

Published on: May 6, 2013

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The inflammatory path toward type 1 diabetes begins during pregnancy

Angelica P Ahrens1, Raquel Dias1, Tuulia Hyötyläinen2

  • 1Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL, USA.

Nature Communications
|January 7, 2026
PubMed

Insights

Early life inflammation and environmental toxicants at birth predict Type 1 diabetes (T1D) risk years before diagnosis. Identifying these early biological markers offers a novel window for T1D prevention strategies.

Area of Science:

  • Immunology
  • Metabolomics
  • Environmental Health

Background:

  • Type 1 diabetes (T1D) incidence is rising globally, but early biological risk factors remain unclear.
  • Understanding early determinants is crucial for developing effective prevention strategies for T1D.
  • Population-based birth cohort studies are vital for identifying pre-diagnostic risk factors.

Purpose of the Study:

  • To identify early-life biological risk factors for Type 1 diabetes (T1D) in a general population.
  • To investigate inflammatory and metabolic signatures at birth that predict future T1D diagnosis.
  • To explore the role of environmental toxicants in T1D development.

Main Methods:

  • Utilized the Swedish population-based ABIS birth cohort (n=16,683).
  • Performed Olink proteomic analysis on neonatal blood samples (286 controls, 146 cases).
  • Employed machine learning algorithms to identify predictive protein subsets for T1D.

Main Results:

  • Differential protein abundance related to neutrophil migration, cytotoxicity, and immune regulation identified at birth.
  • Several protein markers remained significant predictors despite accounting for family history and other factors.
  • Identified associations with metabolites (stearic acid, lysine, glutamine) and toxicants (PFOS).
  • A protein subset accurately predicted T1D (AUC=0.89±0.02), independent of HLA genetic risk.

Conclusions:

  • Innate immune and tissue-remodeling pathways are perturbed at birth in individuals who later develop T1D.
  • Early-life disruptions, including environmental exposures, may indicate beta-cell vulnerability.
  • Non-invasive identification of these early disruptions at birth presents an opportunity for T1D prevention before autoimmune attack.

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