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(A) Effects of compounds 6i, 6l and 6n on inhibiting fibrogenetic COL1A1 and α-SMA protein levels in LX-2 cells; (B) Effects of compounds 6i, 6l and 6n on p-smad2 and smad2 levels in LX-2 cells. Data were analyzed by western blot assay. The protein expression levels were normalized against GAPDH.
