showed a trendp < 0.0001
As Figure 2 B shows, the RNA expression levels of MyHC and Mef2C showed a continuous increasing trend and a significant increase in abundance ( p < 0.0001), while the RNA expression levels of MyoD and MyoG showed a trend of first increasing, downregulating from D0 to D5, and then peaking at D1 ( p < 0.0001, Figure 2 B).