Association Between Circulating Linoleic Acid and Risk of Ischemic Stroke
BackgroundObservational studies have shown an inverse association between circulating linoleic acid (LA) and risk of ischemic stroke (IS).ObjectiveThe aim of this study was to explore whether genetic variants predicting levels of circulating LA are associated with IS and its subtypes using a two-sam...
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doaj-cdd0d68e6de14b6981847c20b76687332021-01-08T06:53:48ZengFrontiers Media S.A.Frontiers in Genetics1664-80212021-01-011110.3389/fgene.2020.582623582623Association Between Circulating Linoleic Acid and Risk of Ischemic StrokeDing Ye0Huijun Huang1David J. H. Wu2David J. H. Wu3Wanting Zhang4Feixiang Zhou5Yu Qian6Yu Qian7Jusheng Zheng8Yingying Mao9School of Public Health, Zhejiang Chinese Medical University, Hangzhou, ChinaSchool of Public Health, Zhejiang Chinese Medical University, Hangzhou, ChinaSchool of Public Health, Zhejiang Chinese Medical University, Hangzhou, ChinaSchool of Medicine, University of Minnesota, Minneapolis, MN, United StatesSchool of Public Health, Zhejiang Chinese Medical University, Hangzhou, ChinaSchool of Public Health, Zhejiang Chinese Medical University, Hangzhou, ChinaSchool of Public Health, Zhejiang Chinese Medical University, Hangzhou, ChinaSchool of Life Sciences, Westlake University, Hangzhou, ChinaSchool of Life Sciences, Westlake University, Hangzhou, ChinaSchool of Public Health, Zhejiang Chinese Medical University, Hangzhou, ChinaBackgroundObservational studies have shown an inverse association between circulating linoleic acid (LA) and risk of ischemic stroke (IS).ObjectiveThe aim of this study was to explore whether genetic variants predicting levels of circulating LA are associated with IS and its subtypes using a two-sample Mendelian randomization (MR) analysis.MethodsLA-related single-nucleotide polymorphisms (SNPs) were selected from a genome-wide association study of 8,631 participants, and summary statistics of IS and IS subtypes were obtained from the MEGASTROKE consortium. MR analysis was performed using the inverse-variance weighted (IVW) method complemented with other approaches, including weighted-median, weighted-mode, MR Pleiotropy RESidual Sum and Outlier test and MR-Egger regression, to test for the robustness of the association. Moreover, we conducted bidirectional MR analysis to assess the impact of IS-associated SNPs on circulating LA levels. Odds ratios (ORs) with 95% confidence intervals (95% CIs) were calculated.ResultsWe found that genetically predicted circulating LA levels were inversely associated with the risk of IS by the IVW method (OR = 0.98, 95% CI: 0.97–0.99, and P = 0.003). Subgroup analyses showed a statistically significant association between LA and risk of large artery stroke (LAS; OR = 0.95, 95% CI: 0.92–0.98, and P = 0.004), but not for other IS subtypes. The results were stable in sensitivity analyses, and no evidence of reverse association between LA and risk of IS, or LAS was observed.ConclusionOur study supports a potential inverse association of genetically predicted circulating LA levels with risk of IS, particularly LAS.https://www.frontiersin.org/articles/10.3389/fgene.2020.582623/fullGenetic variationischemic strokelinoleic acidMendelian randomizationsingle nucleotide polymorphism |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ding Ye Huijun Huang David J. H. Wu David J. H. Wu Wanting Zhang Feixiang Zhou Yu Qian Yu Qian Jusheng Zheng Yingying Mao |
spellingShingle |
Ding Ye Huijun Huang David J. H. Wu David J. H. Wu Wanting Zhang Feixiang Zhou Yu Qian Yu Qian Jusheng Zheng Yingying Mao Association Between Circulating Linoleic Acid and Risk of Ischemic Stroke Frontiers in Genetics Genetic variation ischemic stroke linoleic acid Mendelian randomization single nucleotide polymorphism |
author_facet |
Ding Ye Huijun Huang David J. H. Wu David J. H. Wu Wanting Zhang Feixiang Zhou Yu Qian Yu Qian Jusheng Zheng Yingying Mao |
author_sort |
Ding Ye |
title |
Association Between Circulating Linoleic Acid and Risk of Ischemic Stroke |
title_short |
Association Between Circulating Linoleic Acid and Risk of Ischemic Stroke |
title_full |
Association Between Circulating Linoleic Acid and Risk of Ischemic Stroke |
title_fullStr |
Association Between Circulating Linoleic Acid and Risk of Ischemic Stroke |
title_full_unstemmed |
Association Between Circulating Linoleic Acid and Risk of Ischemic Stroke |
title_sort |
association between circulating linoleic acid and risk of ischemic stroke |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Genetics |
issn |
1664-8021 |
publishDate |
2021-01-01 |
description |
BackgroundObservational studies have shown an inverse association between circulating linoleic acid (LA) and risk of ischemic stroke (IS).ObjectiveThe aim of this study was to explore whether genetic variants predicting levels of circulating LA are associated with IS and its subtypes using a two-sample Mendelian randomization (MR) analysis.MethodsLA-related single-nucleotide polymorphisms (SNPs) were selected from a genome-wide association study of 8,631 participants, and summary statistics of IS and IS subtypes were obtained from the MEGASTROKE consortium. MR analysis was performed using the inverse-variance weighted (IVW) method complemented with other approaches, including weighted-median, weighted-mode, MR Pleiotropy RESidual Sum and Outlier test and MR-Egger regression, to test for the robustness of the association. Moreover, we conducted bidirectional MR analysis to assess the impact of IS-associated SNPs on circulating LA levels. Odds ratios (ORs) with 95% confidence intervals (95% CIs) were calculated.ResultsWe found that genetically predicted circulating LA levels were inversely associated with the risk of IS by the IVW method (OR = 0.98, 95% CI: 0.97–0.99, and P = 0.003). Subgroup analyses showed a statistically significant association between LA and risk of large artery stroke (LAS; OR = 0.95, 95% CI: 0.92–0.98, and P = 0.004), but not for other IS subtypes. The results were stable in sensitivity analyses, and no evidence of reverse association between LA and risk of IS, or LAS was observed.ConclusionOur study supports a potential inverse association of genetically predicted circulating LA levels with risk of IS, particularly LAS. |
topic |
Genetic variation ischemic stroke linoleic acid Mendelian randomization single nucleotide polymorphism |
url |
https://www.frontiersin.org/articles/10.3389/fgene.2020.582623/full |
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