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Pediatr Diabetes. 2015 Jun;16(4):271-9. doi: 10.1111/pedi.12170. Epub 2014 Jul 12.

Effect of docosahexaenoic acid supplementation on inflammatory cytokine levels in infants at high genetic risk for type 1 diabetes.

Author information

1
Department of Pediatrics, University of Colorado, Aurora, CO, USA.

Abstract

OBJECTIVE:

Type 1 diabetes (T1D) results from the inflammatory destruction of pancreatic β-cells. In this study, we investigated the effect of docosahexaenoic acid (DHA) supplementation on stimulated inflammatory cytokine production in white blood cells (WBC) from infants with a high genetic risk for T1D.

RESEARCH DESIGN AND METHODS:

This was a multicenter, two-arm, randomized, double-blind pilot trial of DHA supplementation, beginning either in the last trimester of pregnancy (41 infants) or in the first 5 months after birth (57 infants). Levels of DHA in infant and maternal red blood cell (RBC) membranes and in breast milk were analyzed by gas chromatography/mass spectrometry. Inflammatory cytokines were assayed from whole blood culture supernatants using the Luminex multiplex assay after stimulation with high dose lipopolysaccharide (LPS), 1 µg/mL.

RESULTS:

The levels of RBC DHA were increased by 61-100% in treated compared to control infants at ages 6-36 months. There were no statistically significant reductions in production of the inflammatory cytokines, IL-1β, TNFα, or IL-12p40 at any of the six timepoints measured. The inflammatory marker, high-sensitivity C-reactive protein (hsCRP), was significantly lower in breast-fed DHA-treated infants compared to all formula-fed infants at the age of 12 months. Three infants (two received DHA) were removed from the study as a result of developing ≥two persistently positive biochemical islet autoantibodies.

CONCLUSIONS:

This pilot trial showed that supplementation of infant diets with DHA is safe and fulfilled the pre-study goal of increasing infant RBC DHA levels by at least 20%. Inflammatory cytokine production was not consistently reduced.

KEYWORDS:

breast milk DHA; cytokines; docosahexaenoic acid (DHA); red blood cell DHA; type 1 diabetes

PMID:
25039804
PMCID:
PMC4291300
DOI:
10.1111/pedi.12170
[Indexed for MEDLINE]
Free PMC Article

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