Key result
Upregulation of miR-202-5p or downregulation of its target Trpv2 protected against myocardial ischemia-reperfusion injury by reducing myocardial enzymes, reactive oxygen species, and Ca2+ overload.
Why the study?
To identify miRNA expression profiles in myocardial ischemia-reperfusion rats and determine whether and how dysregulated miRNAs contribute to injury progression through calcium-dependent mechanisms.
Does upregulation of miR-202-5p or downregulation of Trpv2 reduce myocardial ischemia-reperfusion injury in rat models?
Does upregulation of miR-202-5p or downregulation of Trpv2 reduce myocardial ischemia-reperfusion injury in rat models?
Overexpression of miR-202-5p or downregulation of its target Trpv2 exerts cardioprotective effects against myocardial ischemia-reperfusion injury by attenuating calcium overload.
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May attenuate MI/R injury in rats; leaves open translation to human therapy.
Li et al. (2019) studied Myocardial ischemia-reperfusion injury. miR-202-5p upregulation or Trpv2 downregulation vs. Control / miR-202-5p inhibition / Trpv2 overexpression was evaluated on Myocardial damage, infarct size, serum myocardial enzymes, and Ca2+ overload. Upregulation of miR-202-5p or downregulation of its target Trpv2 protected against myocardial ischemia-reperfusion injury by reducing myocardial enzymes, reactive oxygen species, and Ca2+ overload.
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