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dc.contributor.authorXu, D
dc.contributor.authorLi, Y
dc.contributor.authorWang, J
dc.contributor.authorDavey, AK
dc.contributor.authorZhang, S
dc.contributor.authorEvans, AM
dc.date.accessioned2017-05-03T14:06:02Z
dc.date.available2017-05-03T14:06:02Z
dc.date.issued2007
dc.date.modified2014-04-14T23:40:53Z
dc.identifier.issn0024-3205
dc.identifier.doi10.1016/j.lfs.2006.09.008
dc.identifier.urihttp://hdl.handle.net/10072/58389
dc.description.abstractThis study was designed to assess the cardioprotective effect of isosteviol on rats with heart ischemia-reperfusion (IR) injury and to explore the mechanism of action of the compound. Sprague Dawley rats were divided into 8 groups (n = 10-12): a sham-operated control and 7 ischemia-reperfusion groups (IR control, 3 isosteviol pre-treated (0.5, 1.0 and 2.0 mg kg- 1), ligustrazine pre-treated, 5-hydroxydecanoate (5-HD) pre-treated and 5-HD+ isosteviol pre-treated groups). IR was produced by occluding the left coronary artery for 30 min followed by re-opening the artery for 90 min. The compounds under investigation were administered intravenously 10 min prior to occluding the artery. Hemodynamic parameters (ᠤp/dtmax, LVSP, LVDevP, MAP), heart rate, ventricular tachycardia (VT) and ventricular fibrillation (VF) were determined during the IR period. The myocardial infarct size, activities of serum lactate dehydrogenase and creatine kinase were determined at the end of the experiment. In the isosteviol pre-treated groups, the hemodynamic parameters were improved and the myocardial infarct size, the activities of serum enzymes, and the incidences of VT and VF were all decreased when compared to the control group. These effects of isosteviol were similar to that of a traditional cardioprotective agent, ligustrazine. The 5-HD+ isosteviol group displayed parameters that were between those in the equivalent isosteviol pre-treated group and the IR control group. In conclusion, damage due to a standard rat heart IR injury was reduced by pretreatment with intravenous isosteviol, and this effect was partly attenuated by a mitochondrial ATP-sensitive potassium channel blocker, 5-HD.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom269
dc.relation.ispartofpageto274
dc.relation.ispartofissue4
dc.relation.ispartofjournalLife sciences
dc.relation.ispartofvolume80
dc.rights.retentionY
dc.subject.fieldofresearchBasic Pharmacology
dc.subject.fieldofresearchBiochemistry and Cell Biology
dc.subject.fieldofresearchPharmacology and Pharmaceutical Sciences
dc.subject.fieldofresearchcode111501
dc.subject.fieldofresearchcode0601
dc.subject.fieldofresearchcode1115
dc.titleThe cardioprotective effect of isosteviol on rats with heart ischemia-reperfusion injury
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2007
gro.hasfulltextNo Full Text
gro.griffith.authorDavey, Andrew


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