Blood lipid response to a given dietary intervention could be determined by the effect of diet, gene variants or gene-diet interactions. The objective of the present study was to investigate whether variants in presumed nutrient-sensitive genes involved in lipid metabolism modified lipid profile after weight loss and in response to a given diet, among overweight European adults participating in the Diet Obesity and Genes study. By multiple linear regressions, 240 SNPs in twenty-four candidate genes were investigated for SNP main and SNP-diet interaction effects on total cholesterol, LDL-cholesterol, HDL-cholesterol and TAG after an 8-week low-energy diet (only main effect), and a 6-month ad libitum weight maintenance diet, with different contents of dietary protein or glycaemic index. After adjusting for multiple testing, a SNP-dietary protein interaction effect on TAG was identified for lipin 1 (LPIN1) rs4315495, with a decrease in TAG of - 0·26 mmol/l per A-allele/protein unit (95 % CI - 0·38, - 0·14, P= 0·000043). In conclusion, we investigated SNP-diet interactions for blood lipid profiles for 240 SNPs in twenty-four candidate genes, selected for their involvement in lipid metabolism pathways, and identified one significant interaction between LPIN1 rs4315495 and dietary protein for TAG concentration. © The Authors 2013.
CITATION STYLE
Brahe, L. K., Ängquist, L., Larsen, L. H., Vimaleswaran, K. S., Hager, J., Viguerie, N., … Saris, W. H. M. (2013). Influence of SNPs in nutrient-sensitive candidate genes and gene-diet interactions on blood lipids: The DiOGenes study. British Journal of Nutrition, 110(5), 790–796. https://doi.org/10.1017/S0007114512006058
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