Effect of different concentrations of sevoflurane on HUVEC cultures at different timepoints. (a) Effect on TLR2 expression; (b) effect on TLR4 expression; (c) levels of TNF-α (d) and IL-6. * p <0.05. Analysis was performed immediately after finishing sevoflurane exposure (t=0), at 6 (t=6) and 24 (t=24) hours. AFU: Arbitrary fluorescence units.