Gastroprotective Effect of Ginger Rhizome(Zingiber officinale)Extract: Role of Gallic Acid and Cinnamic Acid in H+, K+-ATPase/H. pyloriInhibition and Anti-Oxidative Mechanism
Open Access
- 1 January 2011
- journal article
- research article
- Published by Hindawi Limited in Evidence-Based Complementary and Alternative Medicine
- Vol. 2011, 1-13
- https://doi.org/10.1093/ecam/nep060
Abstract
Zinger officinalehas been used as a traditional source against gastric disturbances from time immemorial. The ulcer-preventive properties of aqueous extract of ginger rhizome (GRAE) belonging to the family Zingiberaceae is reported in the present study. GRAE at 200 mg kg−1 b.w. protected up to 86% and 77% for the swim stress-/ethanol stress-induced ulcers with an ulcer index (UI) of 50 ± 4.0/46 ± 4.0, respectively, similar to that of lansoprazole (80%) at 30 mg kg−1 b.w. Increased H+, K+-ATPase activity and thiobarbituric acid reactive substances (TBARS) were observed in ulcer-induced rats, while GRAE fed rats showed normalized levels and GRAE also normalized depleted/amplified anti-oxidant enzymes in swim stress and ethanol stress-induced animals. Gastric mucin damage was recovered up to 77% and 74% in swim stress and ethanol stress, respectively after GRAE treatment. GRAE also inhibited the growth ofH. pyloriwith MIC of 300 ± 38 μg and also possessed reducing power, free radical scavenging ability with an IC50of 6.8 ± 0.4 μg mL−1gallic acid equivalent (GAE). DNA protection up to 90% at 0.4 μg was also observed. Toxicity studies indicated no lethal effects in rats fed up to 5 g kg−1 b.w. Compositional analysis favored by determination of the efficacy of individual phenolic acids towards their potential ulcer-preventive ability revealed that between cinnamic (50%) and gallic (46%) phenolic acids, cinnamic acid appear to contribute to better H+, K+-ATPase andHelicobacter pyloriinhibitory activity, while gallic acid contributes significantly to anti-oxidant activity.Keywords
Funding Information
- Department of Biotechnology , Ministry of Science and Technology
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