在一般人群中降低了可巴胺敏感性和加速生物衰老
Fan Tang1, Hongbin Qiu2, Yan Liu2
1Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin, China; Department of Epidemiology and Biostatistics, School of Public Health, Jiamusi University, Jiamusi, China.
科巴胺 (Cbl) 不敏感,而不是缺乏,与更快的生物衰老有关. 较低的Cbl灵敏度与老化标志物增加相关,这表明需要对潜在机制进行进一步研究.
科学领域:
- 老年学是一门学科.
- 营养科学 营养科学
- 生物化学 生物化学
背景情况:
- 与衰老相关联的证据有限且相互矛盾.
- 这项研究研究了Cbl生物标志物与生物衰老之间的关系.
研究的目的:
- 探索Cbl摄入量与功能生物标志物和生物衰老指标之间的关联.
- 为了确定Cbl敏感性或不足是否与衰老加速更密切相关.
主要方法:
- 利用了22812名国家健康和营养检查调查参与者的数据 (年龄≥20岁).
- 通过使用Klemera-双年龄加速 (KDMAccel),PhenoAgeAccel,端粒长度,α-Klotho和PhenoAge来评估生物衰老.
- 使用加权通用线性回归来分析Cbl生物标志物 (血清Cbl,饮食Cbl,MMA,Hcy) 和功能标志物 (Cbl缺乏,Cbl不敏感指数).
主要成果:
- 血清/饮食中的Cbl,MMA和Hcy水平出乎意料地与增加的生物衰老指标有关.
- 一个新的可巴拉不敏感性指数表明了强大的剂量反应与生物衰老加速的关联 (p < 0.001).
- 在低Cbl和高MMA/Hcy的组中观察到更高的KDMAccel,特别是MMAhighCblhigh组.
结论:
- 降低巴胺敏感性,而不是缺乏,似乎与加速的生物衰老有关.
- 需要进一步的研究来阐明连接降低Cbl敏感性和加速衰老的机制.
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