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Figure 3 | Respiratory Research

Figure 3

From: Effects of cigarette smoke on endothelial function of pulmonary arteries in the guinea pig

Figure 3

Double elastic lamina presence in small intrapulmonary arteries. Orcein stain of small pulmonary vessels in a control guinea pig (A) and an animal exposed to cigarette smoke (CS) (B). In the exposed animal a double elastic lamina is present, indicating full muscularization of the vessel. Scale bar, 50 μm. (C) Bar graph shows the number of vessels with double elastic laminas expressed as a percentage of the total number of vessels. The number of vessels with double elastic laminas was higher in guinea pigs exposed to CS for 6 months. * p < 0.05 compared with control group. Values are mean ± SEM.

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