上海交通大学学报(医学版) ›› 2023, Vol. 43 ›› Issue (4): 514-518.doi: 10.3969/j.issn.1674-8115.2023.04.016

• 病例报告 • 上一篇    

伴直立性震颤的脊髓小脑性共济失调28型1例报道

汪群峰(), 刘时华()   

  1. 安徽医科大学附属宿州医院神经内科,宿州 234000
  • 收稿日期:2023-01-03 接受日期:2023-02-28 出版日期:2023-04-28 发布日期:2023-04-28
  • 通讯作者: 刘时华 E-mail:wangqf@rjlab.cn;674863312@qq.com
  • 作者简介:汪群峰(1996—),男,硕士生;电子信箱:wangqf@rjlab.cn

A case of spinocerebellar ataxia type 28 with orthostatic tremor

WANG Qunfeng(), LIU Shihua()   

  1. Department of Neurology, Suzhou Hospital of Anhui Medical University, Suzhou 234000, China
  • Received:2023-01-03 Accepted:2023-02-28 Online:2023-04-28 Published:2023-04-28
  • Contact: LIU Shihua E-mail:wangqf@rjlab.cn;674863312@qq.com

摘要:

脊髓小脑性共济失调(spinocerebellar ataxias,SCA)是一组罕见的常染色体遗传的神经退行性疾病,SCA28型是其罕见的亚型,由致病基因AFG3L2的杂合突变引起。临床上通常表现为缓慢进行性步态和肢体共济失调、构音障碍、下肢反射亢进、凝视诱发的眼球震颤、上睑下垂、眼肌麻痹、踝反射减弱、帕金森综合征、肌张力障碍或认知障碍。该文报道1例伴直立性震颤的SCA28型患者,经基因检测发现患者AFG3L2基因存在c.2098G>A错义突变;同时回顾既往文献,总结79例SCA28型病例的临床症状和致病基因变异情况,以加强临床医师对该病的认识,辅助临床诊断。

关键词: 脊髓小脑性共济失调, AFG3L2基因, 错义突变, m-AAA蛋白酶

Abstract:

Spinocerebellar ataxia (SCA) is a rare autosomal neurodegenerative disease. SCA28 is a rare subtype, caused by heterozygous mutation of the pathogenic gene AFG3L2. The clinical features usually include slowly progressive gait and limb ataxia, dysarthria, hyperreflexia of the lower limbs, gaze-evoked nystagmus, ptosis, ophthalmoplegia, decreased ankle reflex, Parkinsonism, dystonia and cognitive impairment. In this paper, a case of SCA28 with orthostatic tremor is reported. The gene detection showed that there was a missense mutation of c. 2098G>A in the AFG3L2 gene of the patient. The clinical symptoms and pathogenic gene mutations of 79 cases of SCA28 type in the previous relevant literature are summarized to strengthen the understanding and clinical diagnosis of the disease.

Key words: spinocerebellar ataxia, AFG3L2 gene, missense mutation, m-AAA protease

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