MEN1 and neoplasm: The analysis of miR-24-1 expression profiles in parathyroid adenomas from MEN1 mutation carriers, in sporadic non-MEN1 tumor counterparts and in healthy parathyroid tissue, showed an inverse correlation in the expression profiles of miR-24-1 and menin, indicating a direct role of miR-24-1 in the post-transcriptional negative regulation of menin expression itself.