相关实验视频
Updated: Jan 15, 2026
11:44
Author Spotlight: Exploring the Impact of Trauma on Cellular Aging
Published on: March 22, 2024
2.9K
"C反应性蛋白与淋巴细胞比率与端粒长度之间的关联:一个基于人口的横截面研究
Wanshun Liu1, Yuanhao Lv, Jun Chen
1Department of Orthopaedic Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China.
Medicine
|October 15, 2025
概括
在美国人群中,较高的C-反应蛋白与淋巴细胞比率 (CLR) 与较短的端粒长度 (TL) 有关. 这表明系统性炎症和细胞衰老之间存在联系,影响着不同的人口统计数据.
科学领域:
- 生物医学研究的研究.
- 炎症和免疫学 炎症和免疫学
- 遗传学和衰老问题
背景情况:
- 端粒长度 (TL) 是细胞衰老的生物标志物,其与炎症的关联越来越被认可.
- C-反应性蛋白与淋巴细胞比率 (CLR) 是一种新的炎症标志物,但其与TL的关系以前没有被研究过.
研究的目的:
- 在代表性美国人群中调查C-反应蛋白与淋巴细胞比率 (CLR) 和端粒长度 (TL) 之间的关联.
- 确定CLR是否是TL的独立预测因素,并探索各种人口亚组之间的这种关系.
主要方法:
- 使用1999-2001年国家健康和营养检查调查 (NHANES) 的数据进行横截面分析.
- 包括参与者拥有关于CLR和TL的完整数据.
- 用多变量回归,逻辑回归,子组分析和相互作用测试来评估相关性.
主要成果:
- 总共有5517名参与者被分析.
- 较高的CLR四分位数与逐渐较短的平均TL相关.
- 在最高CLR四分位数的个体中,平均TL比最低四分位数短202.86个基数对 (β = -202.86,95%CI: -253.09至 -152.63).
- 在各种人口群体中,CLR和TL之间的负相关性是一致的,包括性别,种族,吸烟状况和酒精消费.
结论:
- 在美国人口中,较高的CLR与较短的TL显著相关.
- 这一发现表明了系统性炎症之间的联系,如CLR所示,以及端粒磨损.
- 跨多种子组的一致关联凸显了CLR作为与细胞衰老相关的标记物的潜在概括性.
相关概念视频
02:20Longitudinal Research
13.1K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
13.1K
02:15Replicative Cell Senescence
4.3K
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds...
4.3K
02:41Telomeres and Telomerase
26.8K
In eukaryotic DNA replication, a single-stranded DNA fragment remains at the end of a chromosome after the removal of the final primer. This section of DNA cannot be replicated in the same manner as the rest of the strand because there is no 3’ end to which the newly synthesized DNA can attach. This non-replicated fragment results in gradual loss of the chromosomal DNA during each cell duplication. Additionally, it can induce a DNA damage response by enzymes that recognize single-stranded...
26.8K