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Fig. 3 | Stem Cell Research & Therapy

Fig. 3

From: Transplantation of adipose-derived mesenchymal stem cells attenuates pulmonary fibrosis of silicosis via anti-inflammatory and anti-apoptosis effects in rats

Fig. 3

H&E staining of lung tissue in each group. A ×100; B ×400. (a1, b1) Control group, normal lung morphology: thin lined interalveolar septa with well-organized alveolar space. (a2, b2) Exposure group, distorted lung morphologies: collapsed alveolar space with inflammatory exudates, wider and thickened interalveolar septa, initial formation of silicon nodules. (a3, b3) Vehicle group, similar to exposure group. (a4, b4) Treatment group, ameliorative lung morphology: lessoned collapsed alveolar space with inflammatory exudate, less widened and thickened alveolar septum, reduced pronounced nodules of silicon. Arrows point out pathological changes of lung tissue

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