| ANDRO | andrographolide |
| [Ca2+]i | intracellular free Ca2+ concentration |
| PH | pulmonary hypertension |
| PA | pulmonary artery |
| hPASMCs | human pulmonary artery smooth muscle cells |
| RV/(LV+S) | ratio of the weight of right ventricle to the weight of left ventricle and septum (also referred to as Fulton index) |
| RVSP | right ventricular systolic pressure |
| BMPR2 | bone morphogenetic protein receptor type-2 |
| IL-6 | interleukin 6 |
| IL-8 | interleukin 8 |
| qRT-PCR | quantitative real-time PCR |
| EdU | 5-ethynyl-2′-deoxyuridine |
| H&E | hematoxylin-eosin staining |
| MTT | 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide |
| DMSO | dimethylsulfoxide |
| siRNA | small interfering RNA |
| Fluo-3AM | fluo-3-pentaacetoxymethylester |
| ROS | reactive oxygen species |
| NOX | NADPH oxidase |
| Nrf2 | nuclear factor (erythroid-derived 2)-like 2 |
| HO-1 | heme oxygenase-1 |