Objective: To investigate the effect and mechanism of different concentrations of simvastatin on the proliferation and migration of human vascular smooth muscle cells(HAVSMCs) by regulating RhoA/ROCK-induced expression changes of fibrinolytic activity(t-PA/PAI-1).Methods: Cultured HAVSMCs were treated with different concentrations of simvastatin(0.1μmol/L、1μmol/L、10 μmol/L),and then cell proliferation and cell migration were measured by CCK-8 assay and wound healing test.The expression levels of RhoA/ROCK,t...