Fig. 1. Skeletal muscle insulin resistance in LRP6R611C mutation carriers.
LRP6R611C mutation carriers (R611C), with or without impaired glucose tolerance (IGT and NGT), had higher circulating glucose levels in response to oral glucose load compared to non-carrier relatives (WT) (A). Serum insulin levels were higher in LRP6R611C mutation carriers compared to non-carrier relatives during the last stages of the OGTT (B). The insulin sensitivity index (ISI) was significantly lower in LRP6R611C mutation carriers with NGT compared to non-carriers (C). IR mRNA expressions (D), IR protein levels and AKT phosphorylation (E) were significantly lower in mutation carriers with NGT (lanes3–4) and DM2 (lanes 5–6) compared to non-carriers (lanes1–2). Fig. 1F and G show quantification of IR and pAKT by densitometry (* specifies p<0.05, ** p<0.005). Error bars represent standard deviation (SD).