βArnt mice are a model of maternal glucose intolerance in pregnancy. a Pre-gravid and late gestational GTT for βArnt (n=19) and floxed-control (n=19) females. Data presented as means±SEM; **p<0.01 for pregnant βArnt vs pregnant floxed-control. Black diamonds, pre-gravid floxed-control; white diamonds, pregnant floxed-control; black triangles, pre-gravid βArnt; white triangles, pregnant βArnt. b Total AUCGTT. Data presented as means±SEM; *p<0.05 and **p<0.01 for the comparisons shown. White bars, pre-gravid floxed-control; grey bars, pregnant floxed-control; hatched bars, pre-gravid βArnt; black bars, pregnant βArnt