Fig. 2From: Elucidating the role of circNFIB in myocardial fibrosis alleviation by endogenous sulfur dioxide AAT1 overexpression inhibited excessive collagen production by CFs through upregulating circNFIB expression. a CircNFIB mRNA expression of each group. b Concentration of collagen in cell supernatant of each group. c Collagen I, collagen III and α-SMA protein expression in each group. * P < 0.05Back to article page