IL4 and infection: In this part of the study, proinflammatory cytokines IL-4 and IL-10 levels in the lung were determined on the seventh day of infection by A. baumannii, and the results showed that a significant increment was observed in IL-4 and IL-10 levels of the mice in groups that were treated with LPO, LF, and LPO + LF; the increment was significantly lower in the imipenem-treated group.