GCH1 variants contribute to the risk and earlier age-at-onset of Parkinson’s disease: a two-cohort case-control study

Autor: Hong-xu Pan, Yu-wen Zhao, Jun-pu Mei, Zheng-huan Fang, Yige Wang, Xun Zhou, Yang-jie Zhou, Rui Zhang, Kai-lin Zhang, Li Jiang, Qian Zeng, Yan He, Zheng Wang, Zhen-hua Liu, Qian Xu, Qi-ying Sun, Yang Yang, Ya-cen Hu, Ya-se Chen, Juan Du, Li-fang Lei, Hai-nan Zhang, Chun-yu Wang, Xin-xiang Yan, Lu Shen, Hong Jiang, Jie-qiong Tan, Jin-chen Li, Bei-sha Tang, Ji-feng Guo
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Translational Neurodegeneration, Vol 9, Iss 1, Pp 1-12 (2020)
Druh dokumentu: article
ISSN: 2047-9158
DOI: 10.1186/s40035-020-00212-3
Popis: Abstract Background Common and rare variants of guanosine triphosphate cyclohydrolase 1 (GCH1) gene may play important roles in Parkinson’s disease (PD). However, there is a lack of comprehensive analysis of GCH1 genotypes, especially in non-coding regions. The aim of this study was to explore the genetic characteristics of GCH1, including rare and common variants in coding and non-coding regions, in a large population of PD patients in Chinese mainland, as well as the phenotypic characteristics of GCH1 variant carriers. Methods In the first cohort of this case-control study, we performed whole-exome sequencing in 1555 patients with early-onset or familial PD and 2234 healthy controls; then in the second cohort, whole-genome sequencing was performed in sporadic late-onset PD samples (1962 patients), as well as 1279 controls. Variants at target GCH1 regions were extracted, and then genetic and detailed phenotypic data were analyzed using regression models and the sequence kernel association test. We also performed a meta-analysis to correlate deleterious GCH1 variants with age at onset (AAO) in PD patients. Results For coding variants, we identified a significant burden of GCH1 deleterious variants in early-onset or familial PD cases compared to controls (1.2% vs 0.1%, P
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