Journal
AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY
Volume 79, Issue 3, Pages -Publisher
WILEY
DOI: 10.1111/aji.12802
Keywords
cord blood; cytokine; human; inflammatory markers; Norwegian Mother and Child Cohort Study; pregnancy; type 1 diabetes
Categories
Funding
- Norwegian Ministry of Health and Care Services
- Norges Forskningsrad [2210909/F20]
- NIH/NINDS [UO1 NS 047537-01, UO1 NS 047537-06A1]
- NIH/NIEHS [N01-ES-75558]
- South-Eastern Norway Regional Health Authority
- Oak Foundation: European Research Council
- K.G. Jebsen Foundation
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Problem: Previous studies have suggested that immune perturbations during pregnancy can affect offspring type 1 diabetes (T1D) risk. We aimed to identify inimunological markers that could predict offspring T1D or that were linked to T1D risk factors. Method of study: We quantified selected circulating immunological markers in mid pregnancy (interleukin [IL]-1 beta, IL-1ra, IL-2R alpha, IL-2, -4, -5, -6, 40, -12p70, 13, -17A, GM-CSF, IFN-gamma, CXCL10, CCL 2, CCL3, CCL4, TNF) and cord blood plasma (neopterin and Iwnurenineitiyptophan ratio) in a case-control study with 175 mother/child T1D cases (median age 5.8, range 0.7-13.0 years) and 552 controls. Results: Pre-pregnancy obesity was positively associated with CCL4, CXCL10, lkynurenine/tryptophan ratio and neopterin (P < .01). The established T1D SNPs rs1159465 (near JL2RA) and rs75352297 (near CCR2 and CCR3) were positively associated with IL 2R alpha and CCL4, respectively (P < .01). There was a borderline association of CCL4 and offspring T1D risk, independent of maternal obesity and genotype. When grouping the immunological markers, there was a borderline association (P = .05) with M1 phenotype and no association between M2-, Thl-, Th2- or Th17 phenotypes and offspring T1D risk. Conclusion: Increased mid pregnancy CCL4 levels showed borderline associations with increased offspring T1D risk, which may indicate a link between environmental factors in pregnancy and offspring T1D risk.
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