Gastro-duodenal protective effect of aqueous leaf extract of Daucuscarota sativus Linn. (Apiaceae) in rats and its possible mechanism of action
Journal Title: The Journal of Phytopharmacology - Year 2017, Vol 6, Issue 3
Abstract
Background: Daucuscarota sativus L. (Apiaceae) commonly known as ‘carrot’ is a multipurpose herb cultivated in different parts of the world for its edible roots, juice, oils and leaves. Carrot root as well as its leaves has been credited with many medicinal properties, including cleansing of the intestine and maintenance of acid-alkaline balance in the body. Carrot leaves also known as carrot tops or carrot greens have been used locally as a decoction for healing mouth sores, and in some cases, mixed with honey to clean festering wounds. The present study was therefore designed to evaluate the possible gastro-duodenal protective property of Daucuscarota sativus (DCS) aqueous leaf extract on laboratory-induced ulcers. Aqueous leaf extract prepared by maceration was orally administered one hour before ulcerogens in doses of 50, 100 and 200 mg/kg to groups of randomized adult rats of both sexes. Gastric ulcers were induced using pyloric ligation, methyleneblue, and acetic acid, while cysteamine, and indomethacin-histamine were separately employed for induction of duodenal ulcers in the animals. Positive controls were given standard drugs appropriate for each experimental model. Phytochemical screening of the freshly prepared extract was also carried out, as well as evaluating its antioxidant activity. In each of the models, the aqueous leaf extract of DCS showed a significant (p<0.05-0.001) dose-independent protection against peptic ulcer. The effects produced by the aqueous leaf extract of DCS were comparable to those of the standard drugs (omeprazole; 200 µg/kg, ranitidine; 50 mg/kg, and cimetidine; 50 mg/kg). Phytochemical analysis of the aqueous leaf extract of Daucuscarota sativus revealed the presence of flavonoids, tannins, alkaloids, and saponins, some of which have been reported to elicit cytoprotective effect. Antioxidant analysis showed significant scavenging effect of free radical using nitric oxide, lipid peroxidation and DPPH assay. The findings in this study suggest that the aqueous leaf extract of DCS possesses cytoprotective effect and also reduces secretion of secretagogues, thereby protecting against gastric and duodenal ulcers.
Authors and Affiliations
Esther Oluwatoyin Agbaje, Muyiwa SamuelFageyinbo, Olaitan Oladele Alabi
Keywords
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