升高的α-1抗素和C-反应蛋白:与老年人全因和因特定死亡率的关联
Cammie Tran1, Hans G Schneider2,3, Que T Lam3
1School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, 3004, Australia. Cammie.tran@monash.edu.
GeroScience
|October 29, 2025
概括
在老年人中,阿尔法-1抗素 (AAT) 水平升高显著增加死亡风险,独立于像hs-CRP这样的炎症标志物. 这表明AAT可能作为生物衰老和老年人死亡风险的生物标志物.
科学领域:
- 老年学是一门学科.
- 生物标志物 生物标志物
- 炎症研究 炎症研究
背景情况:
- 阿尔法-1抗素 (AAT) 缺乏在年轻人群中得到了很好的研究.
- 老年人中AAT水平升高对死亡率的影响尚不清楚.
- 由hs-CRP表示的全身炎症是已知的衰老和死亡因素.
研究的目的:
- 调查AAT水平升高与老年人死亡率之间的关联.
- 检查AAT,hs-CRP和特定原因死亡率之间的关系.
- 确定AAT是否是老年人死亡率的独立预测因素.
主要方法:
- 对ASPREE试验的后期分析,该试验涉及11879名70岁以上的成年人.
- 纵向队列研究,平均随访时间为10.9年.
- 考克斯比例危险模型用于评估与AAT和hs-CRP分数相关的死亡风险.
主要成果:
- 处于最高AAT分位数的个体显示,所有死因死亡的可能性增加了53% (aHR为1.53).
- 高AAT与癌症,心血管疾病和其他死亡原因的风险增加有关.
- 最高的hs-CRP分位数与32%更高的死亡率相关 (aHR为1.32),主要来自癌症和"其他"原因.
结论:
- 升高的AAT是老年人死亡率的强大,独立的预测因素.
- AAT可能反映与年龄相关的全身炎症,并作为生物衰老的生物标志物.
- 研究结果强调了AAT在评估老年人群死亡风险方面的潜在实用性.
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