Antioxidant and wound healing potential of Pistia stratiotes L.

Abstract

ObjectiveTo investigate the effects of Pistia stratiotes on wound healing activity in Swiss albino mice by excision wound healing model and its antioxidant study was performed to understand the mechanism of wound healing potency. MethodsMice were topically treated with extract formulated in ointment by using simple ointment vaseline as base. 5% and 10% (w/w) ointment was applied once daily. A standard group was treated with Povidone iodine ointment topically. The area of wound was measured on 4, 6, 8, 10, 12, 14, 16 post-wounding days. The scar area on complete epithelization was measured. The parameters observed were wound contraction (mm2), epithelization period and tensile strength including histopathological studies. Antioxidant activity was determined by in vitro method-H2O2 radical scavenging. ResultsTreatment of wound with ointment containing 5% and 10% (w/w) extract of Pistia stratiotes exhibited significant (P < 0.001) wound healing activity when compared with control group. All parameters such as wound contraction (mm2), epithelization period and tensile strength and histopathological studies showed significant changes when compared to control. Extracts possess significant antioxidant activity compared to control group. Ascorbic acid was used as reference standard for antioxidant activity (P<0.001 vs Ascorbic acid). ConclusionThe results conclude that Pistia stratiotes has antioxidant properties, which may be responsible and favorable for faster wound healing and this plant extract may be useful in the management of wounds, it also supports its traditional use.