Research Article

Long-Term Effects of TCM Yangqing Kangxian Formula on Bleomycin-Induced Pulmonary Fibrosis in Rats via Regulating Nuclear Factor-κB Signaling

Figure 2

Representative histological images in bleomycin-induced pulmonary fibrosis rats treated with Yangqing Kangxian formula, prednisone, or pirfenidone. (a) Hematoxylin and eosin (H&E) staining, magnification 100x, scale bar: 200 μm. (b) Masson trichrome staining, magnification 100x, scale bar: 200 μm. BLM: bleomycin; YKF: Yangqing Kangxian formula; PD: prednisone; PF: pirfenidone. The blue arrows point to the lesion area.
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