As for idiopathic hypoparathyroidism and acute polyendocrine syndrome, CaSR-specific autoantibodies were identified in patient serum, implying a putative involvement of a CaSR-targeted autoimmunity in the etiology of those particular disorders (Li et al., 1996; Mahtab et al., 2017; Kemp et al., 2018). The gene discussed is CASR; the disease is hypoparathyroidism.