The antidiabetic effects of anthocyanins were likely mediated by upregulation of solute carrier family 2 members 4 (Slc2a4) (gene encoding for GLUT 4 transporter), down-regulation of retinol-binding protein and the related inflammatory adipocytokines [43] Similar results were obtained when T2DM mice received a dietary bilberry extract rich in anthocyanins. The gene discussed is SLC2A4; the disease is type 2 diabetes mellitus.