MAPT and Hyperglycemia: However, to our surprise, at the very early stage of hyperglycemia, that is 3 days (Figs. 1B), and 7 days (Fig. 1C) after STZ injection, the level of fasting blood glucose of hTau mice were much lower than that of Tau KO mice and C57 mice, though it was significantly upregulated comparing with non-STZ-injection group.