TNF and Sepsis: Levels of TNF-α in plasma and lung tissues in control group, sepsis group, sepsis+SO2 group, and SO2 group were 43.8 ± 2.94 pg/mL, 52.2 ± 7.50 pg/mL, 47.6 ± 4.59 pg/mL, and 50.8 ± 10.60 pg/mL, respectively.