Fig. 9
a. The protein expression levels of ERK1/2 in the pulmonary vein of sham and PH-LHD model rats were assessed by western blotting analysis. *P < 0.05 vs. S1, #P < 0.05 vs the M1. b PH-LHD model rats were treated with SB203580, SP600125, U0126 and streptomycin. *P < 0.05 vs. M2