Fig. 9

YQHX-induced the expression of PGC-1α through the activation of AMPK phosphorylation in hypoxia-induced H9c2 cells. a Effect of YQHX on PGC-1α expression after hypoxia for 12 h and 24 h. b Effect of YQHX on AMPK phosphorylation after hypoxia for 12 h and 24 h. c YQHX enhanced PGC-1α expression in hypoxia-induced H9c2 cells for 12 h and 24 h, but this effect was completely blocked by 5 μM Compound C. d Effect of YQHX and Compound C on AMPK activity after hypoxia for 12 h and 24 h. Values were presented as mean ± SD (n = 4). ^**P < 0.01 versus control; ^#P < 0.05 versus hypoxia; ^&P < 0.05 versus 200 μg/mL YQHX