患有初级膝关节关节炎的患者端粒长度的性别特异性差异
相关实验视频
Updated: Jul 5, 2025

11:44
Author Spotlight: Exploring the Impact of Trauma on Cellular Aging
Published on: March 22, 2024
1.7K
Lukasz Kuszel1, Tomasz Trzeciak2, Beata Begier-Krasinska3
1Department of Medical Genetics, Poznan University of Medical Sciences, Poznan, Poland.
Journal of cellular and molecular medicine
|January 18, 2024
概括
加快的端粒缩短 (TL) 与骨关节炎 (OA) 有关. 这项研究发现,性别对OA患者的TL有影响,疼痛与白细胞TL较短相关,表明性别和疼痛是OA发病的关键因素.
科学领域:
- 生物医学科学 生物医学科学
- 遗传学 是一个遗传学.
- 整形外科 整形外科 整形外科
背景情况:
- 加快的端粒缩短与衰老和与年龄相关的疾病,如骨关节炎 (OA) 有关.
- 端粒长度 (TL) 是细胞衰老和疾病进展的潜在生物标志物.
- 了解OA中的TL动态对于开发有针对性的疗法至关重要.
研究的目的:
- 为了确定初级膝关节OA患者的白细胞和软骨中的相对端粒长度 (TL).
- 调查影响OATL的因素,包括性别,疾病严重程度和疼痛.
- 为了在同一个OA患者中比较白细胞和软骨之间的TL.
主要方法:
- 量化PCR (qPCR) 用于测量612个个体的白细胞中的相对TL (310名OA患者,302名对照).
- 相对TL还分析了来自57名OA患者的软骨样本,比较同一关节的严重受影响和较少受影响的组织.
- 统计分析检查了性别,疾病状况,疼痛和TL之间的相互作用,控制年龄.
主要成果:
- 根据性别和疾病状况的显著相互作用显示,女性和男性OA患者和对照人群之间的白细胞TL存在差异.
- 同一个关节内的受影响较小的区域相比,严重受影响的区域的软骨TL显著较短,与疾病严重程度相关.
- 与对照组相比,白细胞和软骨TL在OA患者中都较短,软骨TL在同一患者中比白细胞TL更短. 严重/中度疼痛与白细胞TL的缩短有关.
结论:
- 性别是影响骨关节炎患者白细胞和软骨端粒长度的一个重要因素.
- 软骨中的端粒磨损与OA疾病的严重程度相关,疼痛与白细胞端粒长度相反相关.
- 这些发现突显了遗传和环境因素在OA病变发生过程中的复杂相互作用,并建议TL作为潜在的生物标志物.
相关概念视频
Telomeres and Telomerase
23.4K
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...
23.4K
Replicative Cell Senescence
3.6K
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...
3.6K
Replication in Eukaryotes
13.8K
In eukaryotic cells, DNA replication is highly conserved and tightly regulated. Multiple linear chromosomes must be duplicated with high fidelity before cell division, so there are many proteins that fulfill specialized roles in the replication process. Replication occurs in three phases: initiation, elongation, and termination, and ends with two complete sets of chromosomes in the nucleus.
Many Proteins Orchestrate Replication at the Origin
Eukaryotic replication follows many of the same...
Many Proteins Orchestrate Replication at the Origin
Eukaryotic replication follows many of the same...
13.8K

