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一、老年人肾脏的改变(一)大体形态学人类肾脏在40岁至80岁之间约丧失1/5的重量,但肾实质的丧失是不均匀的,皮质较髓质为甚。肾窦的脂肪有所增多,肾间质的纤维性变亦增多。过70岁后,肾间质由于肾髓质粘多糖浓度的减少而有明显的纤维性变。肾皮质的间质组织并不增加而肾小球常聚集一起。上述病变与高血压患者的肾脏相似。(二)血管改变比小动脉稍大的血管,其内膜增厚,有进行性弹力组织的增多。这个变化与年龄有密切关系,并出
First, the elderly changes in the kidneys (a) the general morphology of human kidney in the 40 to 80 years old about the loss of 1/5 weight, but the loss of renal parenchyma is uneven, the cortex is more than the medulla. Increased renal sinus fat, interstitial fibrosis also increased. After 70 years of age, the interstitial renal interstitial mucopolysaccharides due to a decrease in the concentration of significant fibrosis. The interstitial tissue of the renal cortex does not increase and glomerular often together. The above lesions are similar to the kidneys of hypertensive patients. (B) vascular changes slightly larger than the small arteries of the blood vessels, the thickening of the intima, there is an increase of progressive elastic tissue. This change is closely related to age, and out