Fig. 3From: Supplemental N-acyl homoserine lactonase alleviates intestinal disruption and improves gut microbiota in broilers challenged by Salmonella TyphimuriumEffect of N-acyl homoserine lactonase (AHLase) on the relative mRNA expression of ileal tight junction proteins (A, B) and inflammatory cytokines (C, D) of broilers challenged by Salmonella Typhimurium. a,b Values with different superscripts differ significantly (P < 0.05). ZO-1, zonula occludens 1; IL, interleukin; TNF-α, tumor necrosis factor α. NC, negative control (broilers were free of challenge); PC, positive control (broilers were challenged with S. Typhimurium); AHLase, PC broilers supplemented with 10 U/g AHLaseBack to article page