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Fig. 6 | Journal of Genetic Engineering and Biotechnology

Fig. 6

From: HCl-induced acute lung injury: a study of the curative role of mesenchymal stem/stromal cells and cobalt protoporphyrin

Fig. 6

Lung specimen histopathology. a Normal pulmonary alveoli (PA) lined with alveolar epithelial cells (arrow) and normal bronchi (NB) lined with pseudostratified columnar cell (normal control group, H&E, X200), b epithelization of the lining epithelium of the alveoli (arrowhead), heavily serofibrinous exudation within the alveolar lumen (arrow) in addition to multifocal necrotic area filled with neutrophilic infiltration (tailed-arrow) (ALI group, H&E, X200), c complete collapse of the alveoli (arrow) associated with heavy interstitial infiltration of inflammatory cells mainly septal cells with active fibroplastic cell proliferation (arrowhead) (ALI group, H&E, X200), d decrease in interstitial tissue thickening associated with decrease septal cell proliferation (arrow) with increase in the alveolar spaces (AS), (ALI + BM-MSCs group, X200 H&E), and e moderate degree of interstitial tissue thickening (arrow) (ALI + CoPP group, H&E, X200)

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