Uncovering compound heterozygous DYSF variants in a Chinese family affected by limb-girdle muscular dystrophy type 2B.

IF 2.8 3区 生物学 Q2 GENETICS & HEREDITY
Frontiers in Genetics Pub Date : 2025-09-17 eCollection Date: 2025-01-01 DOI:10.3389/fgene.2025.1664086
Jinlan Li, Jie Zhou, Chunbo Ji, Siqing Ma, Jianying Zhu, Tiejun Yang, Danyang Dong, Yang Ping
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Abstract

This case concerns a Chinese female patient who was referred to our clinic having complained of weakness in her lower limbs. Following a series of diagnostic procedures, including electrophysiology, muscle biopsy and genetic analysis, the patient was diagnosed with limb-girdle muscular dystrophy type 2B (LGMD2B). Genetic testing revealed compound heterozygous mutations in the DYSF gene, specifically the missense mutation c.6313G>A (p.Ala2105Thr). Another variant, c.4444del (p.Glu1482Serfs*43), is a frameshift mutation. This case provides further confirmation of the LGMD2B diagnosis. It also identifies novel compound heterozygous DYSF mutations. These findings have significant implications for the diagnosis and research of genetic diseases, the management of at-risk individuals and the development of new therapies.

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揭示一个中国2B型四肢带状肌营养不良家族的复合杂合DYSF变异。
本病例涉及一名中国女性患者,她因下肢无力而被转介到我们诊所。通过电生理、肌肉活检和基因分析等一系列诊断程序,患者被诊断为肢体带状肌营养不良2B型(LGMD2B)。基因检测显示DYSF基因存在复合杂合突变,特别是错义突变c.6313G>A (p.Ala2105Thr)。另一个变体c.4444del (p.Glu1482Serfs*43)是移码突变。本病例进一步证实了LGMD2B的诊断。它还发现了新的复合杂合DYSF突变。这些发现对遗传疾病的诊断和研究、高危个体的管理和新疗法的开发具有重要意义。
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来源期刊
Frontiers in Genetics
Frontiers in Genetics Biochemistry, Genetics and Molecular Biology-Molecular Medicine
CiteScore
5.50
自引率
8.10%
发文量
3491
审稿时长
14 weeks
期刊介绍: Frontiers in Genetics publishes rigorously peer-reviewed research on genes and genomes relating to all the domains of life, from humans to plants to livestock and other model organisms. Led by an outstanding Editorial Board of the world’s leading experts, this multidisciplinary, open-access journal is at the forefront of communicating cutting-edge research to researchers, academics, clinicians, policy makers and the public. The study of inheritance and the impact of the genome on various biological processes is well documented. However, the majority of discoveries are still to come. A new era is seeing major developments in the function and variability of the genome, the use of genetic and genomic tools and the analysis of the genetic basis of various biological phenomena.
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