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Novel Phenotypes and Deep Intronic Variant Expand TH-Associated Dopa-Responsive Dystonia Spectrum

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机构: [1]Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China. [2]Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China. [3]Department of Neurology, Peking Union Medical College Hospital, Beijing, China. [4]Neurology Department, The First Affiliated Hospital, Sun-Yet Sen University, Guangzhou, China.
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关键词: deep intronic variant dopa-responsive dystonia TH

摘要:
Approximately 20% of dopa-responsive dystonia (DRD) cases remain genetically unresolved. Using whole-genome sequencing, we identified two TH variants in a young DRD patient, including a novel deep intronic variant. Minigene assays confirmed that this variant causes aberrant splicing. The patient exhibited an atypical disease progression compared with typical TH-associated DRD cases, presenting with generalized dystonia, episodic hypotonia, Parkinsonism, and oromandibular dyskinesias. These findings, including the first known documented deep intronic TH variant, expand our understanding of TH-associated DRD's phenotypic and genotypic spectrum, aiding clinical evaluation.© 2025 The Author(s). Annals of Clinical and Translational Neurology published by Wiley Periodicals LLC on behalf of American Neurological Association.

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大类 | 2 区 医学
小类 | 2 区 临床神经病学 2 区 神经科学
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大类 | 2 区 医学
小类 | 2 区 临床神经病学 2 区 神经科学
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出版当年[2023]版:
Q1 CLINICAL NEUROLOGY Q1 NEUROSCIENCES
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Q1 CLINICAL NEUROLOGY Q2 NEUROSCIENCES

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第一作者机构: [1]Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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