Autoimmune Polyendocrine Syndrome, Type I, with or Without Reversible Metaphyseal Dysplasia, also known as apeced, is related to autoimmune polyendocrine syndrome, type ii and autoimmune polyendocrine syndrome type 1, and has symptoms including diarrhea An important gene associated with Autoimmune Polyendocrine Syndrome, Type I, with or Without Reversible Metaphyseal Dysplasia is AIRE (Autoimmune Regulator), and among its related pathways/superpathways are Metabolism and Oxidation by cytochrome P450. The drugs Hydroxyurea and Glutamic acid have been mentioned in the context of this disorder. Affiliated tissues include adrenal gland and skin, and related phenotypes are pigmentary retinopathy and constriction of peripheral visual field