Fig. 4

The way fibroblasts synthesize collagen may be the reason why muscle tissue cannot recover normally. A The GO items of DEGs between 3 mm scar muscle tissue and 2 mm scar muscle tissue on the 7th day after the wound was made. B The GO items of DEGs between 3 mm scar muscle tissue and 2 mm scar muscle tissue on the 14th day after the wound was made. C The GO items of DEGs between 3 mm scar muscle tissue and 2 mm scar muscle tissue on the 28th day after the wound was made. D The GO items of DEGs between 3 mm scar muscle tissue and uninjured muscle tissue on the 7th day after the wound was made. “2 mm” denotes that the wound size created at the beginning was 2 mm. “3 mm” indicates that the size of the wound at the beginning of the experiment was 3 mm. The samples were taken 7, 14, 28, and 42 days after the wound was made. “Uninjured” represents normal mouse gluteal muscle tissue without any surgery. Protein interaction results in two GO pathways E. collagen-containing extracellular matrix and F extracellular matrix organization