ArticleDegenerative neurological and neuromuscular disease2026
Genetic Spectrum and Phenotypic Variability in Chinese Patients with Multisystem Proteinopathy and Related Disorders.
Article in Degenerative neurological and neuromuscular disease, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: Multisystem proteinopathy (MSP) is a pleiotropic group of disorders initially presenting as inclusion body myopathy (IBM), amyotrophic lateral sclerosis (ALS), frontotemporal dementia (FTD), and/or Paget disease of bone (PDB). Additional genes including Methods: Twenty-nine patients were identified in 953 patients diagnosed with ALS, IBM, or dementia at Huashan Hospital between 2000 and 2024. Variants in MSP-related genes were detected using next-generation sequencing and confirmed by Sanger sequencing. Clinical, pathological, imaging, and electromyography data were collected and analyzed. Results: A total of 29 patients (3.0%) were identified as carrying MSP-related gene variants. Most patients were male (72.4%), with disease onset predominantly in the third to fifth decades of life. The majority of patients (21/29) presented with a single clinical phenotype. ALS was the most common phenotype (20/29), followed by IBM (10/29), FTD (7/29), and PDB (1/29). The most frequent variants were in Conclusion: This study broadens the clinical and genetic landscape of MSP and related disorders in a Chinese cohort. These results emphasize the clinical utility of next-generation sequencing for improving diagnostic accuracy in patients with unexplained neuromuscular or cognitive presentations, especially in the presence of multisystem involvement.
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