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Evaluation of wound healing activity of ferulic acid in diabetic rats

In diabetic patients, there is impairment in angiogenesis, neovascularisation and failure in matrix metalloproteineases (MMPs), keratinocyte and fibroblast functions, which affects wound healing mechanism. Hence, diabetic patients are more prone to infections and ulcers, which finally result in gangrene. Ferulic acid (FA) is a natural antioxidant found in fruits and vegetables, such as tomatoes, rice bran and sweet corn. In this study, wound healing activity of FA was evaluated in streptozotocin‐induced diabetic rats using excision wound model. FA‐treated wounds were found to epithelise faster as compared with diabetic wound control group. The hydroxyproline and hexosamine content increased significantly when compared with diabetic wound control. FA effectively inhibited the lipid peroxidation and elevated the catalase, superoxide dismutase, glutathione and nitric oxide levels along with the increase in the serum zinc and copper levels probably aiding the wound healing process. Hence, the results indicate that FA significantly promotes wound healing in diabetic rats.