The impact of serum copper on the risk of epilepsy: a mendelian randomization study

Abstract Background The relationship between serum copper and epilepsy has been elucidated in observational studies. In this study, we aimed to explore the causal relationship between serum copper and epilepsy using Mendelian randomization (MR) analysis. Methods Single nucleotide polymorphisms (SNPs...

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Main Authors: Shihao Chen, Wenting Huang, Qi Xu, Tao He, Mulan Zhang, Huiqin Xu
Format: Article
Language:English
Published: BMC 2023-06-01
Series:Acta Epileptologica
Subjects:
Online Access:https://doi.org/10.1186/s42494-023-00126-3
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author Shihao Chen
Wenting Huang
Qi Xu
Tao He
Mulan Zhang
Huiqin Xu
author_facet Shihao Chen
Wenting Huang
Qi Xu
Tao He
Mulan Zhang
Huiqin Xu
author_sort Shihao Chen
collection DOAJ
description Abstract Background The relationship between serum copper and epilepsy has been elucidated in observational studies. In this study, we aimed to explore the causal relationship between serum copper and epilepsy using Mendelian randomization (MR) analysis. Methods Single nucleotide polymorphisms (SNPs) associated with serum copper were used as instrumental variables for MR analysis to evaluate their causal effects on epilepsy. The main MR results were obtained by using the inverse variance weighting (IVW) method, supplemented by weighted median and MR-Egger regression. In addition, sensitivity analyses such as Cochran's Q test and pleiotropy test were used to assess these SNPs on epilepsy in terms of horizontal pleiotropy and heterogeneity. Results The IVW method revealed that the serum copper was associated with an increased risk of generalized epilepsy (OR= 1.07; 95% CI 1.01- 1.14; P = 0.032), and the sensitivity analysis further supports the robustness of the results. Conclusions The current study reveals a possible causal role for serum copper in increasing the risk of generalized epilepsy, which provide guidance for identifying potential risk factors for epilepsy.
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spelling doaj.art-4cb3ad52b2674599b5cebab4ec1e81572023-06-25T11:32:04ZengBMCActa Epileptologica2524-44342023-06-01511610.1186/s42494-023-00126-3The impact of serum copper on the risk of epilepsy: a mendelian randomization studyShihao Chen0Wenting Huang1Qi Xu2Tao He3Mulan Zhang4Huiqin Xu5Department of Neurology, The First Affiliated Hospital of Wenzhou Medical UniversityDepartment of Neurology, The First Affiliated Hospital of Wenzhou Medical UniversityDepartment of Neurology, The First Affiliated Hospital of Wenzhou Medical UniversityDepartment of Neurology, The First Affiliated Hospital of Wenzhou Medical UniversityDepartment of Neurology, The First Affiliated Hospital of Wenzhou Medical UniversityDepartment of Neurology, The First Affiliated Hospital of Wenzhou Medical UniversityAbstract Background The relationship between serum copper and epilepsy has been elucidated in observational studies. In this study, we aimed to explore the causal relationship between serum copper and epilepsy using Mendelian randomization (MR) analysis. Methods Single nucleotide polymorphisms (SNPs) associated with serum copper were used as instrumental variables for MR analysis to evaluate their causal effects on epilepsy. The main MR results were obtained by using the inverse variance weighting (IVW) method, supplemented by weighted median and MR-Egger regression. In addition, sensitivity analyses such as Cochran's Q test and pleiotropy test were used to assess these SNPs on epilepsy in terms of horizontal pleiotropy and heterogeneity. Results The IVW method revealed that the serum copper was associated with an increased risk of generalized epilepsy (OR= 1.07; 95% CI 1.01- 1.14; P = 0.032), and the sensitivity analysis further supports the robustness of the results. Conclusions The current study reveals a possible causal role for serum copper in increasing the risk of generalized epilepsy, which provide guidance for identifying potential risk factors for epilepsy.https://doi.org/10.1186/s42494-023-00126-3Serum copperEpilepsyMendelian randomizationGenome-wide association studiesSingle nucleotide polymorphisms
spellingShingle Shihao Chen
Wenting Huang
Qi Xu
Tao He
Mulan Zhang
Huiqin Xu
The impact of serum copper on the risk of epilepsy: a mendelian randomization study
Acta Epileptologica
Serum copper
Epilepsy
Mendelian randomization
Genome-wide association studies
Single nucleotide polymorphisms
title The impact of serum copper on the risk of epilepsy: a mendelian randomization study
title_full The impact of serum copper on the risk of epilepsy: a mendelian randomization study
title_fullStr The impact of serum copper on the risk of epilepsy: a mendelian randomization study
title_full_unstemmed The impact of serum copper on the risk of epilepsy: a mendelian randomization study
title_short The impact of serum copper on the risk of epilepsy: a mendelian randomization study
title_sort impact of serum copper on the risk of epilepsy a mendelian randomization study
topic Serum copper
Epilepsy
Mendelian randomization
Genome-wide association studies
Single nucleotide polymorphisms
url https://doi.org/10.1186/s42494-023-00126-3
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