从生物阻抗分析和老年人认知功能中探索生物衰老的新标志物
Dieu Ni Thi Doan1, Boncho Ku1,2, Kahye Kim1
1Digital Health Research Division, Korea Institute of Oriental Medicine, Daejeon, South Korea.
Biogerontology
|March 30, 2025
概括
生物年龄 (BA) 标志物,包括认知功能和身体组成,在老年人中提供比时间年龄 (CA) 更准确的健康评估. 这些BA标志物更好地区分健康个体和伴随疾病的个体.
科学领域:
- 老年学和衰老研究研究.
- 衰老的生物标志物
- 健康跨度和长寿研究
背景情况:
- 年代年龄 (CA) 是与年龄有关的疾病的主要危险因素,但它并不完全代表一个人的生物健康状况.
- 生物年龄 (BA) 旨在捕捉与衰老相关的生理变化,提供潜在的更准确的健康度量.
- 识别可靠的BA标志物对于理解和干预衰老过程至关重要.
研究的目的:
- 在老年人群中,研究认知测量和身体成分资料作为生物年龄 (BA) 标记物的实用性.
- 开发和验证特定性别的BA预测公式,使用既有统计方法.
- 将BA的分类能力与时间年龄 (CA) 的分类能力进行比较,以区分健康个体和伴随疾病的个体.
主要方法:
- 开发了特定于性别的生物年龄 (BA) 公式,使用多重线性回归,主要成分分析 (PCA) 和克莱梅拉-杜巴尔 (KDM) 方法.
- 利用296名健康的老年人的数据来构建配方,并将其应用于708名患有并发症的单独队列.
- 通过首尔神经心理查电池评估认知功能和身体组成概况.
主要成果:
- 使用PCA和KDM方法计算的生物年龄 (BA) 在患病队列中明显高于时间年龄 (CA),但在健康队列中可比较.
- 与单独的CA相比,BA标志物在将个人分为健康和患病组的分类中表现出更高的准确性.
- 额头执行功能得分和身体反应率被确定为显著的衰老标志物.
结论:
- 认知评估和身体组成指标是比时间表年龄更准确的生物健康和衰老指标.
- 开发的BA配方,特别是那些来自PCA和KDM的配方,有效地区分了老年人的健康状况.
- 建议对更广泛的年龄范围进行进一步的研究,以将这些发现推广到生物年龄标志物上.
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