PDX1 and Patent ductus arteriosus: It is possible that like other pancreas-lineage transcription factors, such as PDX1 (Roy et al., 2016) and FOXA1 (Roe et al., 2017), HNF1A is associated with subtypes of PDA that retain elements of pancreatic identity (classical and exocrine/ADEX), but are nonetheless important maintenance of the disease.