DAD score, protein levels [pg mg−1], and gene expression of pulmonary markers [relative mRNA expression, fold-change compared with the house-keeping-gen hypoxanthin-phosphoribosyl-transferase-1]. Values are given as median and quartiles. Statistical significance was accepted at P>0.05. Dad score diffuse alveolar damage score; IL-6, interleukin 6; ELISA, enzyme-linked immunosorbent assay, IL-8, interleukin 8; mRNA, messenger ribonucleic acid; VEGF, vascular endothelial growth factor; ICAM-1, intercellular adhesion molecule 1. VV, variable ventilation, NV nonvariable ventilation; mRNA, messenger RNA.