Hsa_circ_0002268 (PHACTR1) influenced protein phosphatase 1 catalytic subunit alpha (PPPCA1) activity, which is involved in the regulation in many cellular processes, e.g., glycogen metabolism [41,42] and cytoskeletal organization of pancreatic beta cells [43], which implies a role in GDM. Here, PHACTR1 is linked to gestational diabetes.