INS and diabetes mellitus: For example, islet-specific miR-375 overexpression represses glucose-stimulated insulin secretion (GSIS) and insulin gene transcription, that is then reversed upon miR-375 inhibition.238 Further, deregulated plasma levels of miR-375 together with miR-150, miR-30a-5p, and miR-15a are observed before T2DM and pre-diabetes onset.