Protective effect of glutamine on intestinal injury and bacterial community in rats exposed to hypobaric hypoxia environment

Figure 4 Effects of glutamine treatment on interleukin-6 (A), tumor necrosis factor-α (B), interferon-γ (C) and diamine oxidase contents in serum (D). ^aP < 0.05, ^bP < 0.01, ^cP < 0.001 vs Control; ^dP < 0.05, ^eP < 0.01, ^fP < 0.001 vs HH. Values are expressed as mean ± SEM (n = 7, each). Gln: Glutamine; IL-6: Interleukin-6; TNF-α: Tumor necrosis factor-alpha; IFN-γ: Interferon-gamma; DAO: Diamine oxidase; Control: Control group; HH: Hypobaric hypoxia group; HG: Hypobaric hypoxia plus Gln treatment group.