C-Type Natriuretic Peptide Ameliorates Lipopolysaccharide-Induced Cardiac Dysfunction in Rats with Pulmonary Arterial Hypertension

Figure 2

Hematoxylin and eosin staining of the lung and right ventricle from a normal rat ((a) and (c)) and a PAH rat ((b) and (d)). The proliferation of smooth muscle cells, collagen fiber deposition in the vessel wall, thickening, and dense inflammatory infiltration were observed around the arterioles in PAH rats. Some of the right ventricular myocytes were fractured from cytoplasm swelling in PAH rats.

(a)

(b)

(c)

(d)