APOH and autoimmune polyendocrinopathy: Antiphospholipid syndrome (APS) is an autoimmune disease characterized by the presence of circulating antiphospholipid antibodies (aPL), such as anticardiolipin and anti-β2-glycoprotein 1 (anti-β2 GP1) antibodies, and associated with thromboembolic disease and obstetrical morbidity (1, 2).