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hAFSC-exo inhibited TGF-βR1 and TGF-βR2 expression on wound healing in rats. (A) IF staining of TGF-βR1 and TGF-βR2 in the healed tissues (scale bar = 300 μm). (B,C) mRNA levels of TGF-βR1 and TGF-βR2 in the healed tissues. Mean ± SD; *P < 0.05; **P < 0.01; ***P < 0.001; n = 5. TGF-βR1, transforming growth factor-β receptor type I, TGF-βR2, transforming growth factor-β receptor type II.
