INS and type 2 diabetes mellitus: Specifically, while after 4 months of dietary change insulin sensitivity was already normal before stroke and remained so also for the whole recovery phase (Fig. 2w), after short-term (2 months) dietary change, T2D/WL mice showed a reduction of IR compared to T2D/Ob mice (p < 0.01 and p < 0.001 at 4 and 8 weeks after stroke respectively; Fig. 2k).