Fig. 1From: Elucidating the role of circNFIB in myocardial fibrosis alleviation by endogenous sulfur dioxide AAT1 overexpression inhibited excessive collagen production by TGF-β1-treated CFs. a Concentration of SO2 in cell supernatant of each group. b AAT1 protein expression in each group. c Concentration of collagen in cell supernatant of each group. * P < 0.05Back to article page