Furthermore, we evaluated the effects of hyperthyroidism and Vit E on the expression levels of genes encoding glucose transporters (Solute carrier family 2 member 1, Slc2a1, encoding Glut1; Solute carrier family 2 member 4, Slc2a4, encoding Glut4), factors involved in lipid homeostasis (five), as well as for the interleukin 1b (Il1b) strongly correlated with IR [13,14,15]. This evidence concerns the gene IL1B and hyperthyroidism.