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Expression levels of TNF-α (pg/ml) and IL-6 (pg/ml) in rat lung (A) and serum (B) (n=8/group), lung tissue and serum in IH group. The levels of TNF-α (pg/ml) and IL-6 (pg/ml) were significantly higher than those of the normal control group. The expression level of HI group was lower than that of the IH group but higher than that of the normal control group.
