Figure 5From: Effects of cigarette smoke on endothelial function of pulmonary arteries in the guinea pig Gene expression of eNOS in whole lungs evaluated by real time-PCR. Bars show the expression of the eNOS gene, normalized by the expression of β-actin (β-act) gene. Compared with control guinea pigs, the expression of eNOS was reduced in animals exposed to cigarette smoke, both at 3 and 6 months of exposure. * p < 0.05, compared with control group. Values are mean ± SEM.Back to article page