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TGF-β1, α-SMA, and Smad3 protein expression levels. After BM-MSC administration, the TGF-β1 (A, C) and α-SMA (A, D) protein expression levels through western blot assays were significantly decreased 1 ± 0.15, 2.5 ± 0.39, and 1.41 ± 0.41 (P <0.01) and 1 ± 0.14, 1.8 ± 0.49, and 1.16 ± 0.25 (P <0.01) in G1, G2 and G3, respectively. (B) Phosphorylation of Smad3 was assessed through western blot assays. Values are expressed as means ± SD. *P <0.01.
