Fig. 4

The TQSS and EPSI prescriptions enhanced the neurite growth in PC12 cells. a The morphology of PC12 cells treated with 1000 mg/L TQSS and 500 mg/L EPSI. The PC12 cells were incubated with the candidate drugs for 48 h and then they were observed and photographed with the phase contrast microscope (scale bar = 50 μm). b The neurite length average of PC12 cells treated with 1000 mg/L TQSS from Shenghui soup. c The statistical analysis of neurite length of PC12 cells treated with 500 mg/L EPSI. Data are expressed as mean ± SD, ***p < 0.001 versus zero-day control