Genetic Analysis of Dystonia-related Genes in Parkinson's Disease

Overview

Journal Front Aging Neurosci

Specialty Geriatrics

Date 2023 Jun 12

PMID 37304079

Authors

Yige Wang

Yuwen Zhao

Hongxu Pan

Qian Zeng

Xiaoxia Zhou

YaQin Xiang

Zhou Zhou

Qian Xu

Qiying Sun

Jieqiong Tan

Xinxiang Yan

Jinchen Li

JiFeng Guo

Beisha Tang

Qiao Yu

Zhenhua Liu

Affiliations

Soon will be listed here.

Abstract

Objective: Parkinson's disease (PD) and dystonia are two closely related movement disorders with overlaps in clinical phenotype. Variants in several dystonia-related genes were demonstrated to be associated with PD; however, genetic evidence for the involvement of dystonia-related genes in PD has not been fully studied. Here, we comprehensively investigated the association between rare variants in dystonia-related genes and PD in a large Chinese cohort.

Methods: We comprehensively analyzed the rare variants of 47 known dystonia-related genes by mining the whole-exome sequencing (WES) and whole-genome sequencing (WGS) data from 3,959 PD patients and 2,931 healthy controls. We initially identified potentially pathogenic variants of dystonia-related genes in patients with PD based on different inheritance models. Sequence kernel association tests were conducted in the next step to detect the association between the burden of rare variants and the risk for PD.

Results: We found that five patients with PD carried potentially pathogenic biallelic variants in recessive dystonia-related genes including and . Additionally, we identified 180 deleterious variants in dominant dystonia-related genes based on computational pathogenicity predictions and four of which were considered as potentially pathogenic variants (p.W591X and p.G820S in , p.R678H in , and p.R458Q in ). A gene-based burden analysis revealed the increased burden of variant subgroups of , and in sporadic early-onset PD, whereas was associated with sporadic late-onset PD. However, none of them reached statistical significance after the Bonferroni correction.

Conclusion: Our findings indicated that rare variants in several dystonia-related genes are suggestively associated with PD, and taken together, the role of and genes in PD is highlighted.

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