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正常人血浆蛋白经肾小球毛细血管壁滤出,绝大部分被肾小管回吸收。因此,尿中每日只有极微量蛋白排出(不超过150mg/日)。血浆蛋白分子的
Normal plasma protein by the glomerular capillary wall filtration, the vast majority of renal tubular absorption. Therefore, urinary excretion of only a trace amount of protein (no more than 150mg / day). Plasma protein molecules