血管内皮细胞的分裂能力是有限的,由于衰老而其寿命变短,而且内皮细胞所分泌的各种生物活性物质也发生变化,故其衰老是血管病变之一。 作者应用各年龄组人的大动脉血管内皮细胞进行分离,在同一条件下培养,发现高龄者大动脉内皮细胞的分裂寿命短,且呈现肥大、老化的形态。在血管的分 Vascular endothelial cell division is limited, due to aging and shorter life expectancy, and endothelial cells secrete a variety of bioactive substances also change, so aging is one of the vascular lesions. Authors of all age groups of human aortic vascular endothelial cells were isolated under the same conditions of culture and found that elderly aortic endothelial cell division of short life expectancy, and showed hypertrophy, aging morphology. Points in the blood vessel