Figure 2
From: Effects of cigarette smoke on endothelial function of pulmonary arteries in the guinea pig
Morphometry of pulmonary artery. Hematoxylin-eosin stained sections of main pulmonary artery (upper panels) and aorta (lower panels) from control (A and C) and cigarette smoke (CS)-exposed (B and D) guinea pigs. Whereas, pulmonary artery of the exposed animal shows prominent thickening of the arterial wall, no difference in wall thickness is noticed in the aorta. Scale bar, 100 μm. (E) Correlation between the contraction to KCl and the wall thickness of the main pulmonary artery in control (black symbols) and CS-exposed (grey symbols) animals after 6 months of exposure.