MPO levels from ARDS patients were found to be approximately 7-fold higher than in controls (MPO in ARDS mean±SEM = 9262±1696 ng/mg vs. control = 1396±439 ng/mg; p<0.001; Figure 1C) which was confirmed by analysis of covariance (p = 0.004). The gene discussed is MPO; the disease is acute respiratory distress syndrome.