BECN1 and diabetes mellitus: Examination of the precise underlying mechanisms of vitamin D in STZ‐induced T1DM mouse model and mouse insulinoma 6 (MIN6) β cells revealed that vitamin D increases the expression of LC3 and Beclin 1, autophagic signaling factors that may influence the promotion and development of diabetes (Lee, 2014; Ding and Choi, 2015).