Fig. 2

Impact of intramuscular administration of lipid-soluble or water-soluble vehicles during the regenerative phase of skeletal muscle regeneration. a H&E staining illustrates histological features of regenerating TA muscle following intramuscular administration of vehicle compounds. Muscle samples were collected on day 8 post-injury. Images were captured at ×200 magnification, scale bars = 50 µm. b–d Quantitative analysis of EbMHC, myogenin, and CD31 protein expression and e muscle wet weight to body weight ratio. *p < 0.05 compared to no vehicle (n = 5 mice/group)