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Bacopa monnieri (L.) Wettest. (Scrophulariaceae) is a well-known medicinal herb. In the Indian system of medicine it is known as Brahmi (Sanskrit) and Indian water hyssop. Methanolic extract of Bacopa monnieri and its isolated constituent Bacoside-A were screened for wound healing activity. Bacoside-A was screened for wound healing activity by excision, incision and dead space wound on Swiss albino rats. Significant wound healing activity was observed in both extract and the Bacoside-A treated groups. The SDS-PAGE caseinolytic zymogram analysis of inhibition of matrix metalloproteases (MMPs) enzyme from the excision wound by Bacoside-A, an isolated constituent, was done with the concentrations 100 and 200 micromg/ml. In Bacoside-A treated groups, epithelialization of the excision wound was faster with a high rate (18.30 +/- 0.01 days) of wound contraction. The tensile strength of the incision wound was increased (538.47 +/- 0.14 g) in the Bacoside-A treated group. In the dead space wound model, the weight of the granuloma was also increased (89.15 +/- 0.08 g). The histological examination of the granuloma tissue of the Bacoside-A treated group showed increased cross-linking of collagen fibers and absence of monocytes. The wound healing activity of Bacoside-A was more effective in various wound models compared to the standard skin ointment Nitrofurazone.

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