Olive (Olea europaea) leaf methanolic extract prevents HCl/ethanol-induced gastritis in rats by attenuating inflammation and augmenting antioxidant enzyme activities

dc.AffiliationOctober University for modern sciences and Arts (MSA)
dc.contributor.authorAl-Quraishy S.
dc.contributor.authorOthman M.S.
dc.contributor.authorDkhil M.A.
dc.contributor.authorAbdel Moneim A.E.
dc.contributor.otherDepartment of Zoology
dc.contributor.otherCollege of Science
dc.contributor.otherKing Saud University
dc.contributor.otherRiyadh
dc.contributor.otherSaudi Arabia; Faculty of Preparatory Year
dc.contributor.otherUniversity of Hail
dc.contributor.otherHail
dc.contributor.otherSaudi Arabia; Faculty of Biotechnology
dc.contributor.otherOctober University for Modern Science and Arts (MSA)
dc.contributor.otherGiza
dc.contributor.otherEgypt; Department of Zoology and Entomology
dc.contributor.otherFaculty of Science
dc.contributor.otherHelwan University
dc.contributor.otherCairo
dc.contributor.otherEgypt
dc.date.accessioned2020-01-09T20:41:20Z
dc.date.available2020-01-09T20:41:20Z
dc.date.issued2017
dc.descriptionScopus
dc.description.abstractGastritis is preponderantly characterized by inflammation of the lining epithelial layer and the chronic gastritis is considered as a pre-cancer lesion. For many centuries olive (Olea europaea) leaf has been used for its putative health potential, nonetheless, to date, the gastroprotective effects of olive leaves have not been studied yet. Hence, in this study we investigated whether olive leaf extract (OLE) could protect gastric mucosa against HCl/ethanol-induced gastric mucosal damage in rats. Hcl/ethanol administration caused significant damage to the gastric mucosa, as confirmed by gastric ulcer index and histological evaluation. However, this damage was largely prevented by pre-administering 20�mg/kg omeprazole or 100�mg/kg OLE. Interestingly, the damage was completely prevented by pre-administering 200 and 300�mg/kg OLE. Moreover, OLE attenuated the inflammatory response by decreasing nuclear factor-?B (NF-?B), cycloxygenase-2 (COX-2) and tumor necrosis factor-? (TNF-?) expressions, and down-regulating inducible nitric oxide synthase (iNOS) and interleukin-1? (IL-1?) in gastric mucosa. The gastroprotective mechanism of OLE involved the promotion of enzymatic and nonenzymatic molecules (superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase and glutathione reduced form), promoting nuclear factor erythroid 2-related factor 2 (Nrf2) mRNA expression, halting lipid peroxidation and preventing the overproduction of nitric oxide. Together, our findings clearly demonstrated that OLE could prevent HCl/ethanol-induced gastritis by attenuating inflammation and oxidant/antioxidant imbalance. Indeed, OLE could potentially be useful as a natural therapy for gastritis. � 2017 Elsevier Masson SASen_US
dc.identifier.doihttps://doi.org/10.1016/j.biopha.2017.04.069
dc.identifier.doiPubMedID28463797
dc.identifier.issn7533322
dc.identifier.otherhttps://doi.org/10.1016/j.biopha.2017.04.069
dc.identifier.otherPubMedID28463797
dc.identifier.urihttps://t.ly/YXe0v
dc.language.isoEnglishen_US
dc.publisherElsevier Masson SASen_US
dc.relation.ispartofseriesBiomedicine and Pharmacotherapy
dc.relation.ispartofseries91
dc.subjectOctober University for Modern Sciences and Arts
dc.subjectUniversity of Modern Sciences and Arts
dc.subjectMSA University
dc.subjectجامعة أكتوبر للعلوم الحديثة والآداب
dc.subjectAntioxidanten_US
dc.subjectGastritisen_US
dc.subjectHCl/ethanolen_US
dc.subjectInflammationen_US
dc.subjectOlive leafen_US
dc.subjectalcoholen_US
dc.subjectcatalaseen_US
dc.subjectcyclooxygenase 2en_US
dc.subjectdigestive tract agenten_US
dc.subjectglutathione peroxidaseen_US
dc.subjectglutathione reductaseen_US
dc.subjecthydrochloric aciden_US
dc.subjectimmunoglobulin enhancer binding proteinen_US
dc.subjectinducible nitric oxide synthaseen_US
dc.subjectinterleukin 1betaen_US
dc.subjectmessenger RNAen_US
dc.subjectmethanolen_US
dc.subjectnitric oxideen_US
dc.subjectOlea europaea extracten_US
dc.subjectomeprazoleen_US
dc.subjectplant extracten_US
dc.subjectsuperoxide dismutaseen_US
dc.subjecttranscription factor Nrf2en_US
dc.subjecttumor necrosis factoren_US
dc.subjectunclassified drugen_US
dc.subjectalcoholen_US
dc.subjectantioxidanten_US
dc.subjecthydrochloric aciden_US
dc.subjectmethanolen_US
dc.subjectplant extracten_US
dc.subjectanimal experimenten_US
dc.subjectanimal modelen_US
dc.subjectanimal tissueen_US
dc.subjectArticleen_US
dc.subjectcontrolled studyen_US
dc.subjectdown regulationen_US
dc.subjectenzyme activityen_US
dc.subjectgastritisen_US
dc.subjectlipid peroxidationen_US
dc.subjectmaleen_US
dc.subjectnonhumanen_US
dc.subjectoliveen_US
dc.subjectplant leafen_US
dc.subjectpriority journalen_US
dc.subjectprotein expressionen_US
dc.subjectraten_US
dc.subjectrat modelen_US
dc.subjectstomach mucosaen_US
dc.subjectstomach protectionen_US
dc.subjectstomach ulceren_US
dc.subjectanimalen_US
dc.subjectbody weighten_US
dc.subjectchemically induceden_US
dc.subjectchemistryen_US
dc.subjectdrug effectsen_US
dc.subjectenzymologyen_US
dc.subjectgastritisen_US
dc.subjecthigh performance liquid chromatographyen_US
dc.subjectinflammationen_US
dc.subjectmetabolismen_US
dc.subjectolive treeen_US
dc.subjectoxidative stressen_US
dc.subjectpathologyen_US
dc.subjectplant leafen_US
dc.subjectstomach ulceren_US
dc.subjecttoxicity testingen_US
dc.subjectWistar raten_US
dc.subjectAnimalsen_US
dc.subjectAntioxidantsen_US
dc.subjectBody Weighten_US
dc.subjectChromatography, High Pressure Liquiden_US
dc.subjectEthanolen_US
dc.subjectGastritisen_US
dc.subjectHydrochloric Aciden_US
dc.subjectInflammationen_US
dc.subjectMaleen_US
dc.subjectMethanolen_US
dc.subjectOleaen_US
dc.subjectOxidative Stressen_US
dc.subjectPlant Extractsen_US
dc.subjectPlant Leavesen_US
dc.subjectRats, Wistaren_US
dc.subjectStomach Ulceren_US
dc.subjectToxicity Tests, Acuteen_US
dc.titleOlive (Olea europaea) leaf methanolic extract prevents HCl/ethanol-induced gastritis in rats by attenuating inflammation and augmenting antioxidant enzyme activitiesen_US
dc.typeArticleen_US
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