| ACh | Acetylcholine |
| ANOVA | Analysis of variance |
| AOA | Aminooxyacetic acid |
| cGMP | Cyclic guanosine monophosphate |
| CBS | Cystathionine β-synthase |
| COS | Carbonyl sulfide |
| CSE | Cystathionine γ-lyase |
| DMSO | Dimethyl sulfoxide |
| eNOS | Endothelial nitric oxide synthase |
| ET-1 | Endothelin-1 |
| ETAR | Endothelin type A receptor |
| H2S | Hydrogen sulfide |
| HPV | Hypoxic pulmonary vasoconstriction |
| KPSS | Potasium-rich physiological saline solution |
| L-NOARG | Nω-nitro-L-arginine |
| MST (3-MST) | 3-Mercaptopyruvate sulfurtransferase |
| NaHS | Sodium hydrosulfide |
| NO | Nitric oxide |
| ODQ | 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one |
| PA | Pulmonary artery |
| PASMCs | Pulmonary artery smooth muscle cells |
| PH | Pulmonary hypertension |
| PPG | Propargylglycine |
| ROS | Reactive oxygen species |
| SEM | Standard error of the mean |
| sGC | Soluble guanylate cyclase |
| SNP | Sodium nitroprusside |
| TGF-β1 | Transforming growth factor beta 1 |
| VSMCs | Vascular smooth muscle cells |
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