Keratinocyte Growth Factor-2 Is Protective in Oleic Acid-Induced Acute Lung Injury in Rats

Figure 2

Ultrastructural changes in lung tissue of rats in each group under transmission electron microscopy (10,000 times). (a) Control alveolar-capillary barrier integrity (red arrow); (b) alveolar-capillary barrier was severely impaired in ALI group and alveolar type II epithelial cells were degenerated, endothelial cell apoptosis (black arrow) and basement membrane exposure; (c) ALI+KGF-2 group reduced damage; alveolar-capillary barrier was basically intact (red arrow).

(a)

(b)

(c)