在衰老和死亡率的背景下解码性二态蛋白质组景观
Zhihao Jin1,2, Bingying Du1,2,3,4, Xuehao Jiao4
1Department of Neurology, Zhongshan Hospital, Laboratory Animal Center, Fudan University, Shanghai, China.
Communications medicine
|September 30, 2025
概括
科学家们开发了一种基于蛋白质的衰老时钟ProteAge,它揭示了特定性别的衰老模式,并确定了与衰老率和死亡率相关的蛋白质. 这促进了对生物衰老和寿命的理解.
科学领域:
- 蛋白质组学是指蛋白质组学.
- 老年学是一门学科.
- 生物标志物 生物标志物
背景情况:
- 老龄化与慢性疾病有关,老龄化时钟预测死亡率和疾病.
- 了解衰老速度背后的蛋白质变化至关重要,但有限.
- 现有的衰老时钟缺乏关于衰老加速或减速的详细蛋白质学见解.
研究的目的:
- 使用英国生物库数据开发基于蛋白质的衰老时钟 (ProteAge).
- 评估ProteAge能够预测所有原因死亡率的能力.
- 为了确定性别特定的衰老轨迹和衰老速度相关的蛋白质 (ARPs).
主要方法:
- 使用了英国生物库数据 (n=53,013;年龄在39-71岁之间).
- 构建了一个蛋白质原子衰老时钟,ProteAge.
- 分析了特定性别的衰老模式,并确定了与死亡率相关的ARP.
主要成果:
- "ProteAge"表现出不同的,性别特定的衰老轨迹,女性表现出更多非线性衰老率.
- 在两性中都发现了数百种加速和减速的ARP.
- 确定了一组与死亡率相关的ARP:女性1例,男性172例,以及保护性和风险因素.
结论:
- 性二态蛋白质变化与衰老和死亡率有关.
- 这些发现提供了对衰老和长寿的生物机制的见解.
- "ProteAge"为评估生物衰老及其性别相关性提供了一个新的工具.
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