Fig. 4

Relative expression (Mean ± SEM) of α-SMA mRNA in the lungs of PAH rat models, and the effect of treatment with PA and QS. n = 6 in each group. *** and ### = P < 0.001, significantly different with both control and MCT + VE. CTL, control; MCT, monocrotaline; VE, vehicle; PA, perillyle alcohol; QS, quercetin; α-SMA, α-smooth muscle actin