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A common variant highly associated with plasma VEGFA levels also contributes to the variation of both LDL-C and HDL-C

Abstract : ascular endothelial growth factor A (VEGFA) is among the most-significant stimulators of angiogenesis. Its effect on cardiovascular diseases and on the variation of related risk factors such as lipid parameters is considered important, although as yet unclear. Recently, we identified four common variants (rs6921438, rs4416670, rs6993770, and rs10738760) that explain up to 50% of the heritability of plasma VEGFA levels. In the present study, we aimed at assessing the contribution of these variants to the variation of blood lipid levels (including apoE, triglycerides, total cholesterol, low- and high-density lipoprotein cholesterol levels (LDL-C and HDL-C)] in healthy subjects. The effect of these single-nucleotide polymorphisms (SNPs) on lipid levels was assessed using linear regression in discovery and replication samples (n = 1,006 and n = 1,145; respectively), followed by a meta-analysis. Their gene×gene and gene×environment interactions were also assessed. SNP rs6921438 was associated with HDL-C (β = −0.08 mmol/l, Poverall = 1.2 × 10−7) and LDL-C (β = 0.13 mmol/l, Poverall = 1.5 × 10−4). We also identified a significant association between the interaction rs4416670×hypertension and apoE variation (Poverall = 1.7 × 10−5). Therefore, our present study shows a common genetic regulation between VEGFA and cholesterol homeostasis molecules. The SNP rs6921438 is in linkage disequilibrium with variants located in an enhancer- and promoter-associated histone mark region and could have a regulatory effect in the expression of surrounding genes, including VEGFA.
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Submitted on : Tuesday, February 13, 2018 - 2:29:20 PM
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Maria Stathopoulou, Amélie Bonnefond, Ndeye Coumba Ndiaye, Mohsen Azimi-Nezhad, Said El Shamieh, et al.. A common variant highly associated with plasma VEGFA levels also contributes to the variation of both LDL-C and HDL-C. Journal of Lipid Research, American Society for Biochemistry and Molecular Biology, 2013, 54 (2), pp.535 - 541. ⟨10.1194/jlr.P030551⟩. ⟨hal-01708241⟩

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