Fig. 2From: Impact of hyperoxia on the gut during critical illnessesHyperoxia provokes gut injury and dysbiosis; LPS: lipopolysaccharide; TNF-α: tumor necrosis factor-alpha; TNFR: tumor necrosis factor receptor; NF-κB: nuclear factor-κB; Nrf2: nuclear factor erythroid 2-related factor 2; TLR-4: toll-like receptor-4; NAC: N-acetylcysteine; ROS: reactive oxygen species; DHA: docosahexaenoic acid; TJ: tight junctionBack to article page