The transpulmonary gradient of intracellular LOX-1 levels was not significantly different between ARDS and non-ARDS patients at H0 but it was more negative at H24 in ARDS (−0.23; 95% CI [−0.27, −0.14]) than in non-ARDS patients (0.03; 95% CI [−0.14, 0.32]; p-value= 0.031), with a hazard ratio HR = 0.39 (95% CI [0.18–0.86]); p-value= 0.035. Here, OLR1 is linked to acute respiratory distress syndrome.