In Vivo Wound Healing and Anti-Inflammatory Activities of Leaf Latex of Aloe megalacantha Baker (Xanthorrhoeaceae)

Background. Aloe megalacantha Baker (Xanthorrhoeaceae) is one of the Aloe species widely distributed in Ethiopia. The leaf latex of the plant is used for treatment of wounds, inflammation, and other multiple ailments in Ethiopian traditional medicine. Purpose. The aim of this study was to evaluate in vivo wound healing and anti-inflammatory activities of the leaf latex of Aloe megalacantha in mice. Methods. The wound healing activity of the leaf latex of the plant was studied topically by incorporating the latex in simple ointment base in a concentration of 5% (w/w) and 10% (w/w) using excision and incision models. In these models, wound contraction, period of epithelialization, and breaking strength of the wounded skin were determined. Carrageenan induced inflammation of paw model was also used to assess the anti-inflammatory activity of the leaf latex at doses of 200 mg/kg, 400mg/kg, and 600 mg/kg. The level of inflammation suppressions were measured at 1, 2, 3, and 4 hrs after carrageenan injection, and then the percentages of inflammation inhibition were computed as compared with the negative control. Result. In both wound models, mice treated with 5% (w/w) and 10% (w/w) latex ointment showed a significant (p

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