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Current Neurovascular Research

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ISSN (Print): 1567-2026
ISSN (Online): 1875-5739

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Research Article

Causal Effects of Blood Metabolites and Obstructive Sleep Apnea: A Mendelian Randomization Study

Author(s): Jing-Hao Wu, Ying-Hao Yang, Yun-Chao Wang, Wen-Kai Yu, Shan-Shan Li, Yun-Yun Mei, Ce-Zong, Zi-Han Zhou, Hang-Hang Zhu, Liu-Chang He, Xin-Yu Li, Chang-He Shi* and Yu-Sheng Li*

Volume 21, Issue 1, 2024

Published on: 18 October, 2023

Page: [101 - 109] Pages: 9

DOI: 10.2174/0115672026266627230921052416

Price: $65

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Abstract

Background: Obstructive sleep apnea (OSA) is one of the most common forms of sleep-disordered breathing. Studies have shown that certain changes in metabolism play an important role in the pathophysiology of OSA. However, the causal relationship between these metabolites and OSA remains unclear.

Aims: We use a mendelian randomization (MR) approach to investigate the causal associations between the genetic liability to metabolites and OSA.

Methods: We performed a 2-sample inverse-variance weighted mendelian randomization analysis to evaluate the causal effects of genetically determined 486 metabolites on OSA. Multiple sensitivity analyses were performed to assess pleiotropy. We used multivariate mendelian randomization analyses to assess confounding factors and mendelian randomization Bayesian model averaging to rank the significant biomarkers by their genetic evidence. We also conducted a metabolic pathway analysis to identify potential metabolic pathways.

Results: We identified 14 known serum metabolites (8 risk factors and 6 protective factors) and 12 unknown serum metabolites associated with OSA. These 14 known metabolites included 8 lipids( 1-arachidonoylglycerophosphoethanolamine, Tetradecanedioate, Epiandrosteronesulfate, Acetylca Glycerol3-phosphate, 3-dehydrocarnitine, Margarate17:0, Docosapentaenoaten3;22:5n3), 3 Aminoacids (Isovalerylcarnitine,3-methyl-2-oxobutyrate,Methionine), 2 Cofactors and vitamins [Bilirubin(E,ZorZ,E),X-11593--O-methylascorbate], 1Carbohydrate(1,6-anhydroglucose). We also identified several metabolic pathways that involved in the pathogenesis of OSA.

Conclusion: MR (mendelian randomization) approach was performed to identify 6 protective factors and 12 risk factors for OSA in the present study. 3-Dehydrocarnitine was the most significant risk factors for OSA. Our study also confirmed several significant metabolic pathways that were involved in the pathogenesis of OSA. Valine, leucine and isoleucine biosynthesis metabolic pathways were the most significant metabolic pathways that were involved in the pathogenesis of OSA.

Keywords: Metabolites, mendelian randomization, obstructive sleep apnea, multivariable mendelian randomization, MR bayesian model averaging, pleiotropy.

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