mRNA expression of Interleukin-8 in bronchoalveolar lavage fluid cells before injury and after injury. NG, acute lung injury with normoglycemia group; HG, acute lung injury with hyperglycemia group; HG-VI, acute lung injury with hyperglycemia treated with intravenous insulin group; HG-AI, acute lung injury with hyperglycemia treated with aerosolized insulin group; IL-8, interleukin-8. Boxes extend from the 25th to 75th percentile; the horizontal line shows the median. Error bars show the minimum and maximum. *P <0.05 compared with before injury; ††P <0.01 #P <0.05 compared with after injury in NG; §§P <0.01 compared with after injury in HG group; ¶P <0.05 compared with after injury in HG-VI group.