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作为长期CK高血症的原因,dysferlinopathy具有保留强度的原因
Ikreet Cheema1, Jacob Goodwin1, Teerin Liewluck1
1Department of Neurology, Mayo Clinic, Rochester, MN, 55905, USA.
Orphanet journal of rare diseases
|June 22, 2025
概括
遗传性肌肉疾病 - - 线病症可以表现为无症状的高肌酸酶 (CK) 水平或伪代谢性肌肉病症. 早期识别是关键,因为尽管有DYSF变异,肌肉活检结果可能是最小的.
科学领域:
- 神经学 神经学
- 遗传学 是一个遗传学.
- 肌肉发育不良的研究 肌肉发育不良研究
背景情况:
- 迪斯弗林 (DYSF) 对于肌肉膜修复至关重要.
- DYSF突变通常会导致四肢腰带肌肉发育不良 (LGMDR2) 或米约希肌病.
- 很少情况下,DYSF突变表现为无症状的CK高血症或伪代谢性肌病.
研究的目的:
- 为了描述罕见的皮质障碍症表型.
- 介绍三名患者的临床,遗传和病理发现.
- 审查有关不常见线障碍症表现的文献.
主要方法:
- 临床评估三名患有罕见线障碍症的患者.
- 血清学,放射学 (CT,MRI) 和遗传检测.
- 肌肉活检和西部斑点分析以检测异林表达.
- 对CKCK高血症和伪代谢性线病变的文献综述.
主要成果:
- 患者1: 51岁女性,7岁运动肌痛,22岁无症状CK高血症,DYSF变种,缺席dysferlin.
- 患者2: 20岁的男性,运动肌痛,无症状的CK高血症,DYSF变体,减少的dysferlin.
- 患者3: 58岁的女性,无症状的CK高血症,DYSF变体,减弱的dysferlin. 所有患者的EMG正常.
结论:
- 考虑在代谢性肌肉病变/CKC高血症差异中进行异性细分病变.
- 无症状的CK高血症在异性ferlinopathy可能不会预测软弱.
- 最小的活检变化并不能排除DYSF变异的dysferlin缺乏症.
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