Study of sarcopenia in human muscle biopsies of elderly individuals, Singapore Sarcopenia Study

Purpose: The main goal of this study is to compare skeletal muscle transcriptome profilings derived from sarcopenic versus healthy subjects.Methods: We use high coverage RNA sequencing of human skeletal muscle biopsies to analyze genome-wide transcriptional changes in human sarcopenia benchmarked to healthy elderly controls.Results: Muscle transcriptomic profiles demonstrate a prominent signature of mitochondrial dysfunction in sarcopenic patients.Conclusions: Our study supports the fundamental role of mitochondrial dysfunction in driving pathological muscle and mobility decline in the elderly.

研究目的：本研究的核心目标为对比肌少症（sarcopenia）患者与健康受试者的骨骼肌转录组谱（transcriptome profiling）。研究方法：我们采用高深度RNA测序技术对人类骨骼肌活检标本进行检测，以健康老年对照群体为基准，分析肌少症患者全基因组范围内的转录变化。研究结果：骨骼肌转录组谱显示，肌少症患者呈现出显著的线粒体功能障碍（mitochondrial dysfunction）特征。研究结论：本研究证实，线粒体功能障碍在驱动老年人群病理性肌肉衰减与活动能力下降的过程中发挥核心作用。

搜集汇总

背景与挑战

背景概述

该数据集研究了老年人肌肉减少症的骨骼肌转录组特征，包含40个样本的RNA测序数据，揭示了肌肉减少症患者中线粒体功能障碍的显著特征。