ABSTRACT
ObjectiveTo observe the effects of ultrafiltration extract from Angelica Sinensis Radix and Hedysari Radix on PC12 cell apoptosis induced by H2O2; To discuss its mechanism of action.Methods H2O2 was used in the incubation of PC12 cells to establish the oxidative damage nerve cell apoptosis model. The experiment was divided into normal control group, model group, and three different dosages (0.375, 0.75, 1.5 g/L) of ultra-filtration extracted from Angelica Sinensis Radix and Hedysari Radix after modeling for interference. Rate of cell apoptosis was detected by flow cytometry; mitochondrial membrane potential was measured by laser scanning confocal microscopy; the protein expressions of cleaved Caspase-3, Bax and Bcl-2 were detected by Western blot.Results Compared with the model group, rates of cell apoptosis in the different dosage groups decreased significantly; membrane potential of mitochondria increased; the protein expressions of cleaved Caspase-3 and Bax decreased; the expression of Bcl-2 increased; the ratio of Bcl-2 and Bax increased (P<0.05).Conclusion The ultra-filtration extracted from Angelica Sinensis Radix and Hedysari Radix can inhibit PC12 cell apoptosis induced by H2O2.