THBS1 and bronchopulmonary dysplasia: Since TSP-1 interacts with signaling molecules including nitric oxide, as well as growth factors such as TGF-β, VEGF, and FGF2, which are key regulators in lung development, we sought to investigate whether there might be an association between early airway TSP-1 protein expression and BPD susceptibility in ELBW infants.