Fig. 2

Cardiomyocyte injury and oxidative stress markers after HR and sevoflurane pretreatment. A-C Detection of markers of cardiac troponin I (cTnI), creatine kinase isoenzyme (CK-MB), and lactate dehydrogenase (LDH) in cardiomyocyte injury after different treatments. (A) cTnl. (B) CK-MB. (C) LDH. D-F Detection of oxidative stress metabolite malondialdehyde (MDA), antioxidant enzymes superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) expression in cardiomyocytes after different treatments. (D) MDA. (E) SOD. (F) GSH-Px. * P<0.05, ** P<0.01, *** P<0.001, **** P<0.0001