(A) Expression of NFκB signaling pathway-associated proteins was measured using western blotting. Relative expression of (B) p-IKKα, (C) IKKα, (D) p-IKKβ, (E) IKKβ, (F) p-IKBα, (G) IKBα, (H) p-NFκB and (I) NFκB. *P<0.05 vs. control. #P<0.05 vs. K. pneumoniae-infected normal mice. &P<0.05 vs. uninfected mice with DM. NF, nuclear factor; p, phosphorylated; IKK, inhibitor of κB kinase; Kp, Klebsiella pneumoniae; DM, diabetes mellitus.