The medicinal serum of Yi-shen Ruan-jian san antagonized the effect of aristolochic acid on human proximal tubular epithelial cells in vitro Molecular mechanism of rhein on inhibiting autophagic protein expression in renal tubular epithelial cells via regulating mTOR signaling pathway activation Molecular mechanism of emodin on inhibiting autophagy induced by HBSS in renal tubular cells Study on effect of fushenkeli on expression of TAK1 in human renal tubular epithelial cells and its possible mechanism