Fig. 5From: Bone marrow mesenchymal stromal cells attenuate silica-induced pulmonary fibrosis potentially by attenuating Wnt/β-catenin signaling in ratsLung histopathology on the 56th day after exposure to silica suspension in each group: H&E staining of lung tissue, magnification × 50, × 100, and × 200 (arrows indicate massive aggregation of inflammatory cells and fibrotic lesions)Back to article page