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TGF-β1 level in BALF and hydroxyproline content in the lung of mice instilled with silica. (A) The level of TGF-β1 in BALF detected by ELISA at 7 days after silica instillation. (B) Hydroxyproline content in the lung of mice at different time point after silica instillation. Data are mean ± SEM (n = 6). * p < 0.05, compared to the saline control group; Δ p < 0.05, compared to the silica group; # p < 0.05, compared to the silica + Lv-shβ-catenin-NC group.
