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Effect of CIHH on the protein expression of AMPK, p-AMPK, PDK4 and PGC-1α in left ventricular myocytes before and after I/R. (A) Protein expression of AMPK and p-AMPK; (B) Protein expression of PDK4; (C) Protein expression of PGC-1α. CON, control group; CIHH, chronic intermittent hypobaric hypoxia; Pre, pre-ischemia; I/R, ischemia/reperfusion. Data are expressed as the mean ± SD (n = 6 in each group). *P < 0.05 vs. corresponding CON group.
