Department of Internal Medicine II, Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany.
Exp Gerontol. 2010 Oct;45(10):797-800. doi: 10.1016/j.exger.2010.04.003. Epub 2010 May 28.
Ageing leads to a decline in renal function that becomes obvious in individuals with hypertension, vascular disease, or diabetes mellitus. In the absence of such precipitating factors old age induces a reduction of renal functional reserve. It is well known that even modest declines in renal excretory function enhance the cardiovascular risk of the patient by means of myocardial remodelling, arteriosclerosis and atherosclerosis. An important non-traditional risk factor for vascular disease is chronic inflammation. Patients with renal dysfunction tend to have systemic inflammatory activation even in the absence of infection. Subclinical inflammation might be related to cellular senescence mechanisms in leukocytes that are fostered by renal insufficiency. This effect as well as enhanced oxidative stress resemble typical characteristics of both advanced ageing and renal failure. Facing these similarities, chronic renal failure might be a model that allows investigation of accelerated ageing in the vascular system.
衰老是导致肾功能下降的原因,这种下降在患有高血压、血管疾病或糖尿病的个体中变得明显。在没有这些诱发因素的情况下,老年会导致肾功能储备减少。众所周知,即使肾功能适度下降也会通过心肌重构、动脉硬化和动脉粥样硬化来增加患者的心血管风险。慢性炎症是血管疾病的一个重要非传统危险因素。即使没有感染,肾功能不全的患者也往往会出现全身炎症激活。亚临床炎症可能与白细胞的细胞衰老机制有关,而这种机制是由肾功能不全引起的。这种作用以及增强的氧化应激类似于衰老和肾衰竭的典型特征。面对这些相似之处,慢性肾衰竭可能是一个模型,可以在血管系统中研究加速衰老。