CASP1 and bronchopulmonary dysplasia: The objectives of this study were to investigate whether neonatal hyperoxia exposure alters caspase-1 and GSDMD expression in the myocardium and systemic vasculature and to determine whether caspase-1 inhibition ameliorates neonatal hyperoxia-induced cardiovascular inflammation and fibrosis, aortic stiffness, and BPD phenotype.