Objective To compare the differences between Jiedu Huayu Prescription containing serum and plasma on PAR-1, ERK1/2 expression of the PC12 cell injury model. Methods Rat serum containing and plasma models was prepared through gavage. Three gas incubators and sugar-free DMEM medium simulated ischemia caused by hypoxia were used, and 150 U/mL of thrombin was added, with a purpose to establish the thrombin-induced hypoxic PC12 cell injury model. The experiment was divided as control group, model group, serum containing group and plasma containing group. Real-time fluorescent quantitative PCR was u...