基因组和RNA测序将神经肌肉诊断提升至62%,而仅使用外基因组测序将其提升至34%
Rhett G Marchant1,2,3, Samantha J Bryen1,2,3, Melanie Bahlo4,5
1Faculty of Medicine and Health, The University of Sydney, Westmead, New South Wales, Australia.
Annals of clinical and translational neurology
|March 28, 2024
概括
将外体序列测序与基因组,RNA和蛋白质研究相结合,显著提高了遗传性神经肌肉疾病的分子诊断率. 这种综合性方法提高了诊断产量,帮助临床医生识别因果遗传变异.
科学领域:
- 遗传学 遗传学 是一个
- 神经学 神经学
- 基因组医学是基因组医学.
背景情况:
- 大多数患有遗传性神经肌肉疾病的家庭缺乏分子诊断.
- 在许多情况下,目前的诊断方法不足以识别因果遗传变异.
研究的目的:
- 评估外体,基因组,RNA测序和蛋白质研究的诊断效用.
- 为在神经肌肉疾病的临床实践中整合这些先进的基因组技术提供基于证据的建议.
主要方法:
- 247个疑似单源神经肌肉疾病的家庭接受了以研究为主导的大规模并行测序.
- 技术包括神经肌肉疾病基因组,外体,基因组和/或RNA测序.
- 在必要时使用蛋白质和RNA研究来确定因果变异.
主要成果:
- 将外体序列测序与辅助研究相结合,在62%的家庭中得出了诊断.
- 仅仅对外体序列测定就诊了55%的病例;对于剩余的45%需要进行额外的研究.
- 诊断的很大一部分 (36.2%) 涉及已知的基因中的拼接改变或结构变异,而不是新型疾病基因.
结论:
- 彻底的临床表型是解释罕见的遗传变异至关重要的.
- 脱后辅助检查增加了81%的诊断产量.
- 提出了一种诊断算法,以优化对神经肌肉疾病的基因组和辅助研究的有效部署.
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