Mendelian Randomization Analysis Reveals Statins Potentially Increase Amyotrophic Lateral Sclerosis Risk Independent of Peripheral Cholesterol-Lowering Effects

Background: Observational studies suggest that statins may affect amyotrophic lateral sclerosis (ALS). However, they are limited by confounding and reverse causality biases. Therefore, we aimed to investigate the potential causal associations between statins and ALS using a mendelian randomization (...

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Main Authors: Wenjing Wang, Linjing Zhang, Kailin Xia, Tao Huang, Dongsheng Fan
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/11/5/1359
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author Wenjing Wang
Linjing Zhang
Kailin Xia
Tao Huang
Dongsheng Fan
author_facet Wenjing Wang
Linjing Zhang
Kailin Xia
Tao Huang
Dongsheng Fan
author_sort Wenjing Wang
collection DOAJ
description Background: Observational studies suggest that statins may affect amyotrophic lateral sclerosis (ALS). However, they are limited by confounding and reverse causality biases. Therefore, we aimed to investigate the potential causal associations between statins and ALS using a mendelian randomization (MR) approach. Methods: Two-sample MR and drug-target MR were performed. Exposure sources included GWAS summary statistics of statin use, low-density-lipoprotein cholesterol (LDL-C), HMGCR-mediated LDL-C and LDL-C response to statins. Results: Genetic predisposition to statin medication was associated with increased ALS risk (OR = 1.085, 95% CI = 1.025–1.148, <i>p</i> = 0.005). After removing SNPs significantly associated with statin use from the instrumental variables (IVs), LDL-C-related higher ALS risk was absent (before removing: OR = 1.075, 95% CI = 1.013–1.141, <i>p</i> = 0.017; after removing: OR = 1.036, 95% CI = 0.949–1.131, <i>p</i> = 0.432). HMGCR-mediated LDL-C (OR = 1.033, 95% CI = 0.823–1.296, <i>p</i> = 0.779) and blood LDL-C response to statins (OR = 0.998, 95% CI = 0.991–1.005, <i>p</i> = 0.538) had no association with ALS. Conclusions: Here, we show that statins may be a risky exposure that increases ALS risk independent of the lowering effect of LDL-C in peripheral circulation. This provides insights into ALS development and prevention.
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spelling doaj.art-dd3fd8b016d54e3b84062bed4025f2742023-11-18T00:35:53ZengMDPI AGBiomedicines2227-90592023-05-01115135910.3390/biomedicines11051359Mendelian Randomization Analysis Reveals Statins Potentially Increase Amyotrophic Lateral Sclerosis Risk Independent of Peripheral Cholesterol-Lowering EffectsWenjing Wang0Linjing Zhang1Kailin Xia2Tao Huang3Dongsheng Fan4Department of Neurology, Peking University Third Hospital, Beijing 100191, ChinaDepartment of Neurology, Peking University Third Hospital, Beijing 100191, ChinaDepartment of Neurology, Peking University Third Hospital, Beijing 100191, ChinaDepartment of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, ChinaDepartment of Neurology, Peking University Third Hospital, Beijing 100191, ChinaBackground: Observational studies suggest that statins may affect amyotrophic lateral sclerosis (ALS). However, they are limited by confounding and reverse causality biases. Therefore, we aimed to investigate the potential causal associations between statins and ALS using a mendelian randomization (MR) approach. Methods: Two-sample MR and drug-target MR were performed. Exposure sources included GWAS summary statistics of statin use, low-density-lipoprotein cholesterol (LDL-C), HMGCR-mediated LDL-C and LDL-C response to statins. Results: Genetic predisposition to statin medication was associated with increased ALS risk (OR = 1.085, 95% CI = 1.025–1.148, <i>p</i> = 0.005). After removing SNPs significantly associated with statin use from the instrumental variables (IVs), LDL-C-related higher ALS risk was absent (before removing: OR = 1.075, 95% CI = 1.013–1.141, <i>p</i> = 0.017; after removing: OR = 1.036, 95% CI = 0.949–1.131, <i>p</i> = 0.432). HMGCR-mediated LDL-C (OR = 1.033, 95% CI = 0.823–1.296, <i>p</i> = 0.779) and blood LDL-C response to statins (OR = 0.998, 95% CI = 0.991–1.005, <i>p</i> = 0.538) had no association with ALS. Conclusions: Here, we show that statins may be a risky exposure that increases ALS risk independent of the lowering effect of LDL-C in peripheral circulation. This provides insights into ALS development and prevention.https://www.mdpi.com/2227-9059/11/5/1359amyotrophic lateral sclerosisstatinsmendelian randomizationcausalityHydroxymethylglutaryl-CoA reductase inhibitorslipids
spellingShingle Wenjing Wang
Linjing Zhang
Kailin Xia
Tao Huang
Dongsheng Fan
Mendelian Randomization Analysis Reveals Statins Potentially Increase Amyotrophic Lateral Sclerosis Risk Independent of Peripheral Cholesterol-Lowering Effects
Biomedicines
amyotrophic lateral sclerosis
statins
mendelian randomization
causality
Hydroxymethylglutaryl-CoA reductase inhibitors
lipids
title Mendelian Randomization Analysis Reveals Statins Potentially Increase Amyotrophic Lateral Sclerosis Risk Independent of Peripheral Cholesterol-Lowering Effects
title_full Mendelian Randomization Analysis Reveals Statins Potentially Increase Amyotrophic Lateral Sclerosis Risk Independent of Peripheral Cholesterol-Lowering Effects
title_fullStr Mendelian Randomization Analysis Reveals Statins Potentially Increase Amyotrophic Lateral Sclerosis Risk Independent of Peripheral Cholesterol-Lowering Effects
title_full_unstemmed Mendelian Randomization Analysis Reveals Statins Potentially Increase Amyotrophic Lateral Sclerosis Risk Independent of Peripheral Cholesterol-Lowering Effects
title_short Mendelian Randomization Analysis Reveals Statins Potentially Increase Amyotrophic Lateral Sclerosis Risk Independent of Peripheral Cholesterol-Lowering Effects
title_sort mendelian randomization analysis reveals statins potentially increase amyotrophic lateral sclerosis risk independent of peripheral cholesterol lowering effects
topic amyotrophic lateral sclerosis
statins
mendelian randomization
causality
Hydroxymethylglutaryl-CoA reductase inhibitors
lipids
url https://www.mdpi.com/2227-9059/11/5/1359
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