Downregulation of miR- 223 - 3p Contributes to NLRP3 Activation in Reflux Esophagitis. A: Expression levels of miR- 223 - 3p and NLRP3-related RNA. B: Expression levels of caspase- 1, NLRP3, and GSDMD proteins. n = 3; *: P < 0.05; **: P < 0.01; ***: P < 0.001