TGFB1 and Peritoneal Fibrosis: The hydrogel not only blocked inflammatory factors and inflammatory cells by functioning as a physical barrier, but it also inhibited fibroblast aggregation and peritoneal fibrosis by suppressing TGF-β1 expression in cecum tissue from rats with cecum-abdominal wall abrasion, which was shown by immunohistochemistry of TGF-β1.