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Figure 2: Normal lung architecture showing alveoli separated by delicate interalveolar septa, in the NT, glycyrrhizic acid (GLA) groups rats that sacrificed at 8 weeks p.i. Severe lung alterations showing intra-alveolar edema (arrow a), thickening of the alveolar septa by infiltration of mononuclear (arrow b), a large numbers of foam and dust cells (arrow c), congestion of dilated vessels, collagen deposition, and a large fibrous area (arrow d), in the XRT group rats, and mild to moderate severity of these alterations in the GLA/XRT group rats that sacrificed at 16 weeks p.i, (H and E, ×400)

Figure 2: Normal lung architecture showing alveoli separated by delicate interalveolar septa, in the NT, glycyrrhizic acid (GLA) groups rats that sacrificed at 8 weeks p.i. Severe lung alterations showing intra-alveolar edema (arrow a), thickening of the alveolar septa by infiltration of mononuclear (arrow b), a large numbers of foam and dust cells (arrow c), congestion of dilated vessels, collagen deposition, and a large fibrous area (arrow d), in the XRT group rats, and mild to moderate severity of these alterations in the GLA/XRT group rats that sacrificed at 16 weeks p.i, (H and E, ×400)