supported by the National Key Research and Development Program(2018YFC1312003);the National Natural Science Foundation(81671120,81300981);the Natural Science Foundation for Distinguished Young Scholars of Hunan Province(2020JJ2057);the Degree&Postgraduate Education Reform Project of Central South University(2020JGB136);the Project Program of National Clinical Research Center for Geriatric Disorders(Xiangya Hospital)(2020LCJJ13),China。
目的:脊髓小脑共济失调2型(spinocerebellar ataxia type 2,SCA2)是世界上最常见的常染色体显性遗传的共济失调之一。多篇报道显示某些含polyQ基因的CAG重复序列可能影响SCA2患者的发病年龄(age at onset,AAO),但在中国SCA2患者中进行...