Figure 4.

Cell viability and neuronal injury in PC12 cells. Cell viability was evaluated using a commercial MTT proliferation assay kit in control cells or injured cells 48 h after scratching. Neuronal injury was evaluated by measurement of lactate dehydrogenase (LDH) concentration using a commercial LDH detection kit at the same time point. The results were expressed as mean ± standard deviation. Differences in these markers among the five groups were compared using one‐way ANOVA with LSD t test. ‘*’ indicates P < .05, and ‘**’ indicates P < .01