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Sufentanil protects the rat myocardium against ischemia-reperfusion injury via activation of the ERK1/2 pathway.
Cytotechnology 2018 Februrary
Sufentanil, a lipophilic opioid, is the most frequently used clinical drug for ischemic heart disease. The effects of sufentanil on MAPK signaling in ischemic heart disease were explored. The effects of sufentanil on ischemia-reperfusion (IR)-induced myocardial injury in a rat model were examined. The serum levels of CK, LDH, MDA and SOD, and the activities of Na+ -K+ -ATPase and Ca2+ -Mg2+ -ATPase were measured. The levels of total and phosphorylated ERK1/2, JNK, and p38 were measured by western blotting in the heart, and the myocardial H9C2 cell line was studied. Using the Cell Counting Kit-8, the growth rate of H9C2 cells affected by sufentanil was studied. The serum levels of CK, LDH and MDA were higher in the IR group than in the SO and SUF groups. The SOD level, as well as the activities of Na+ -K+ -ATPase and Ca2+ -Mg2+ -ATPase, were lower in the SO and SUF groups than in the IR group. The phosphorylated ERK1/2 level was lower in the IR group than in the SO and SUF groups. The growth rate of H9C2 cells increased with the concentration of sufentanil and the exposure time. The phosphorylated ERK level was upregulated by 4-12 h of sufentanil exposure, indicating that the effects were time-dependent. Furthermore, an inhibition of ERK signaling by chemical inhibition suppressed the sufentanil-mediated increase in the growth rate of H9C2 cells. Sufentanil appears to be beneficial for cases of worsening ischemic heart disease. Further studies are necessary before a clinical application is considered.
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