| ALI | acute lung injury |
| ARDS | acute respiratory distress syndrome |
| BAL | bronchoalveolar lavage |
| COVID-19 | coronavirus infectious disease 2019 |
| EC | endothelial cell |
| GSK3β | glycogen synthase kinase-3 beta |
| LPS | lipopolysaccharide |
| SARS-CoV-2 | severe acute respiratory syndrome coronavirus 2 |
| TER | transendothelial resistance |
| ZO-1 | zona occludens-1 |