循环内皮细胞:在衰老和大脑病理中的作用
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
在PubMed上查看摘要
概括
此摘要是机器生成的。血液中的循环内皮细胞 (CEC) 表明疾病. 增加的CEC标志着内皮变化,有助于预后老化和大脑疾病,并监测癌症治疗.
科学领域
- 血管生物学
- 生物标志物
- 老年学
背景情况
- 循环内皮细胞 (CEC) 是通常在周围血液中少量的成熟血管细胞.
- 在各种疾病中观察到增加的CEC水平,反映出内皮细胞的循环或损伤.
- 在患病的个体中,CEC数量会有很大的波动.
研究的目的
- 审查CEC作为衰老和大脑疾病中的生物标志物的作用.
- 探索CEC,病理状况和疾病预后之间的关系.
- 了解CEC在疾病预防和治疗方面的潜力.
主要方法
- 专注于病理条件下的CEC的文献综述.
- 对老年患者和脑部疾病患者的研究分析.
- 检查CEC作为血液病和癌症的生物标志物.
主要成果
- 在患病患者中,CEC度较高且可变.
- 脑细胞细胞计数的变化与疾病进展,治疗反应和预后相关.
- 中枢细胞因内皮损伤而存在,并作为瘤血管性和治疗监测的生物标志物.
结论
- 这些细胞是内皮细胞变化和疾病状态的有价值指标.
- 在病理条件下研究CEC对于了解它们在衰老和大脑疾病中的作用至关重要.
- 通过CEC可以改善疾病监测,预后和治疗策略.
相关概念视频
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
Overview
The blood-brain barrier (BBB) refers to the specialized vasculature that provides the brain with nutrients in the blood while strictly regulating the movement of ions, molecules, pathogens, and other substances. It is composed of tightly linked endothelial cells on one side and astrocyte projections on the other. Together they provide a semipermeable barrier that protects the brain and poses unique challenges to the delivery of therapeutics.
Cellular Components
The BBB is made up of...
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...