Fig. 6.
Concentrations of serum cytokines. The concentrations of serum tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, IL-8, and IL-10 in individual patients were measured. Data are expressed as the mean ± SD for each group of patients (n = 25). Filled circle and triangle represent the air and carbon dioxide groups, respectively. #P < 0.05 compared with air group. T1 = before one-lung ventilation; T2 = 30 min after reexpansion; T3 = 24 h postoperation; T4 = 48 h postoperation; T5 = 72 h postoperation.