Effect of Docosahexaenoic Acid Supplementation on Inflammatory Cytokine Levels in Infants at High Genetic Risk for Type 1 Diabetes
Overview
Pediatrics
Authors
Affiliations
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.
Prevention of Type 1 Diabetes in Children: A Worthy Challenge?.
Ingrosso D, Quarta M, Quarta A, Chiarelli F Int J Environ Res Public Health. 2023; 20(11).
PMID: 37297566 PMC: 10252671. DOI: 10.3390/ijerph20115962.
Hakola L, Vuorinen A, Takkinen H, Niinisto S, Ahonen S, Rautanen J Eur J Nutr. 2022; 62(2):847-856.
PMID: 36284022 PMC: 9941262. DOI: 10.1007/s00394-022-03035-2.
Lipid metabolism in type 1 diabetes mellitus: Pathogenetic and therapeutic implications.
Zhang J, Xiao Y, Hu J, Liu S, Zhou Z, Xie L Front Immunol. 2022; 13:999108.
PMID: 36275658 PMC: 9583919. DOI: 10.3389/fimmu.2022.999108.
Niinisto S, Miettinen M, Cuthbertson D, Honkanen J, Hakola L, Autio R Front Immunol. 2022; 13:858875.
PMID: 35693790 PMC: 9175567. DOI: 10.3389/fimmu.2022.858875.
Decsi T, Marosvolgyi T, Muszil E, Body B, Szabo E Life (Basel). 2022; 12(4).
PMID: 35455017 PMC: 9030843. DOI: 10.3390/life12040526.