The levels of inflammatory cytokines (interleukin-6, interleukin-8 function homolog, and interleukin-10) found in the bronchoalveolar lavage fluid were significantly elevated in pulmonary ARDS models compared to extrapulmonary ARDS models, whereas no differences were observed in the number of infiltrating neutrophils [19]. This evidence concerns the gene IL6 and acute respiratory distress syndrome.