Fasting whole blood fatty acid profile and risk of type 2 diabetes in adults: A nested case control study

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Abstract

Objective: to determine the association of fasting whole blood fatty acid concentrations with incidence of type 2 diabetes in adults. Methods: A nested case-control study of 187 subjects from a cohort of men and women aged 55-85 years from the Hunter Region, New South Wales, Australia. Fasting whole blood fatty acids were measured using gas chromatography and incidence of type 2 diabetes was ascertained by self-reported questionnaire at the study follow-up. Results: After adjustment for potential confounding variables, positive associations with type 2 diabetes were seen for dihomo-gamma-linolenic acid (DGLA) (OR = 1.04, 95% CI:1.01-1.07, P = 0.01); arachidonic acid (ARA) (OR = 1.01, 95% CI:1.00-1.01, P = 0.002); alpha-linolenic acid (ALA) (OR = 1.10, 95% CI: 1.03-1.18, P = 0.01); eicosapentaenoic acid (EPA) (OR = 1.05, 95% CI:1.02-1.08, P = 0.001); and docosahexaenoic acid (DHA) (OR = 1.03, 95% CI:1.02-1.05, P<0.0001). Lignoceric acid is significantly associated with lower type 2 diabetes risk (OR = 0.95, 95% CI: 0.92-0.99, P = 0.01). Conclusion: These data suggest that higher fasting whole blood concentrations of omega-6 polyunsaturated fatty acids (n-6PUFA) (ARA and DGLA) as well as omega-3 polyunsaturated fatty acid (n-3PUFA) (ALA, EPA, and DHA) are associated with an increased risk of diabetes, whereas increased fasting whole blood concentrations of lignoceric acid is inversely associated with diabetes risk. © 2014 Alhazmi et al.

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Alhazmi, A., Stojanovski, E., Garg, M. L., & McEvoy, M. (2014). Fasting whole blood fatty acid profile and risk of type 2 diabetes in adults: A nested case control study. PLoS ONE, 9(5). https://doi.org/10.1371/journal.pone.0097001

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