Research Article

A Meta-Analysis of Resveratrol Protects against Myocardial Ischemia/Reperfusion Injury: Evidence from Small Animal Studies and Insight into Molecular Mechanisms

Table 7

Metaregression analysis in vivo and ex vivo.

CovariatesInfarct size (in vivo studies)Infarct size (ex vivo studies)
Coefficient95% CI valueCoefficient95% CI value

Species6.122819-6.043731; 18.289370.2795.763822-8.045439; 19.573080.332
Sample size1.662638-1.379227; 4.7045030.2430.2914345-0.869869; 1.4527380.547
State1.953709-11.39187; 15.299280.744-0.774244-6.697155; 5.1486670.750
Route of administration4.398078-12.15415; 20.95030.5574.566912-4.397479; 13.53130.247
Reperfusion duration-9.196691-29.21135; 10.817970.3201.047275-5.011723; 7.1062730.675
Timing regimen of pretreatment2.226924-3.267802; 7.7216490.3770.7420125-1.891014; 3.3750390.501

Metaregression provided valuable information regarding the interaction between the continuous covariates and treatment effect of resveratrol in reducing the infarct size and may explore the source of heterogeneity. Consistent value showed that none of the covariates below had an impact on the cardioprotection of resveratrol in myocardial I/R injury.