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Seminars in Immunopathology

, Volume 39, Issue 6, pp 653–667 | Cite as

Early life origin of type 1 diabetes

  • Mikael Knip
  • Kristiina Luopajärvi
  • Taina Härkönen
Review

Abstract

Type 1 diabetes (T1D) is perceived as a chronic immune-mediated disease with a subclinical prodromal period characterized by selective loss of insulin-producing beta cells in the pancreatic islets in genetically susceptible subjects. The incidence of T1D has increased manifold in most developed countries after World War II in parallel with a series of other immune-mediated diseases. T1D results from gene-environmental interactions. The appearance of disease-associated autoantibodies into the peripheral circulation is the first detectable sign of the initiation of the disease process leading to clinical T1D. The first autoantibodies may appear already before the age of 6 months and the seroconversion rate peaks during the second year of life. This implies that exogenous factors involved in the pathogenesis of T1D must be operative in early life, some of them most likely already during pregnancy. Here, we discuss putative endogenous factors that may contribute to the development of T1D during fetal and early postnatal life. Many environmental factors operative in early life have been implicated in the pathogenesis of T1D, but relatively few have been firmly confirmed.

Keywords

Type 1 diabetes Environmental determinants Conception Fetal life Postnatal life Omics 

Notes

Funding information

Research that is relevant for this review is and has been supported by the following grants: Juvenile Diabetes Research Foundation International (grants 4-1998-274, 4-1999-731, 4-2001-435), European Union (grant BMH4-CT98-3314), Novo Nordisk Foundation, Academy of Finland (Centre of Excellence in Molecular Systems Immunology and Physiology Research 2012-2017, Decision No. 250114), Special Research Funds for University Hospitals in Finland, Sigrid Juselius Foundation, Finska Läkaresällskapet, and Medicinska understödsföreningen Liv och Hälsa.

Compliance with ethical standards

Conflict of interest

Mikael Knip is an advisor to Vactech Oyj and Provention Bio, Inc. The other authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  1. 1.Children’s HospitalUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
  2. 2.Research Programs Unit, Diabetes and ObesityUniversity of HelsinkiHelsinkiFinland
  3. 3.Folkhälsan Research CenterHelsinkiFinland
  4. 4.Tampere Center for Child Health ResearchTampere University HospitalTampereFinland

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