Research Article

Keratinocyte Growth Factor-2 Reduces Inflammatory Response to Acute Lung Injury Induced by Oleic Acid in Rats by Regulating Key Proteins of the Wnt/β-Catenin Signaling Pathway

Figure 2

Ultrastructural changes of lung tissue of rats in each group under transmission electron microscope (10,000 times). (a) The alveolar-capillary barrier of the control group is intact. (b) The alveolar-capillary barrier in the ALI group was severely damaged, the alveolar type II epithelial cells were degenerated, the endothelial cells were apoptosis, and the basement membrane was destroyed. (c) The damage in the ALI + KGF-2 group was alleviated, the alveolar-capillary barrier was basically complete, and a small amount of osmium lamellar bodies and mitochondria were vacuolated.