Maturity-Onset Diabetes of the Young, Type 14, also known as maturity-onset diabetes of the young type 14, is related to isolated permanent neonatal diabetes mellitus and munchausen by proxy. An important gene associated with Maturity-Onset Diabetes of the Young, Type 14 is APPL1 (Adaptor Protein, Phosphotyrosine Interacting With PH Domain And Leucine Zipper 1), and among its related pathways/superpathways are Regulation of beta-cell development and Antiarrhythmic Pathway, Pharmacodynamics. Related phenotypes are maturity-onset diabetes of the young and elevated hemoglobin a1c