血细胞外膀生物标志物与低肌肉质量,功能和身体表现相关 在萨尔科佩尼亚
Ji Yeon Kim1, Tae-Hwan Gil1, Hyo Gyeong Lee1
1Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea.
Journal of cachexia, sarcopenia and muscle
|March 31, 2025
概括
携带肌质素,P3NP和TNF-α的细胞外囊泡 (EVs) 与老年人肌肉功能和表现有很强的联系. 这些EV衍生的生物标志物可以帮助诊断,改善早期识别和干预策略.
科学领域:
- 老年学是一门学科.
- 生物标志物发现发现
- 肌肉生理学 肌肉生理学
背景情况:
- 人口老龄化需要可靠的肉症风险识别.
- 肌肉骨健康的等离子体生物标志物往往产生不一致的结果.
- 细胞外囊泡 (EVs) 正因其分子载荷和细胞间通信作用而成为有前途的疾病生物标志物.
研究的目的:
- 为了研究血衍生的EV生物标志物 (adiponectin,myostatin,P3NP,CRP,TNF-α) 与肌肉质量,功能和表现的指标之间的相关性.
- 评估这些EV衍生的生物标志物的诊断潜力,在骨质疏松症和肉类疏松症队列.
主要方法:
- 肌肉质量通过尾骨肌肉质量 (ASM) /高度2使用双X射线吸收计来评估.
- 肌肉功能和性能通过使用手握强度,短物理性能电池 (SPPB),步行速度和五次坐立测试来评估.
- 使用密度梯度超离心法从血中分离出EVs;生物标志物表达得到确认. 多变量回归分析调整以考虑混因素.
主要成果:
- 血EV水平的肌态素和P3NP与步行速度和SPPB分数显著相关,分别.
- TNF-α水平与手握强度有很强的关联.
- 生物标志物截止值确定了不同的高和低组,肌肉强度,性能和SARC-F得分有显著差异.
结论:
- 来自EV的肌态素,P3NP和TNF-α与肌肉功能和性能有显著的关联.
- 已确立的生物标志物切断值证明了对萨尔科佩尼亚的诊断相关性.
- 这些发现突出了基于EV的生物标志物的潜力,以用于未来的临床应用,用于检测肉症.
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