Four-week-old male WT (Prom1+/+) and KO (Prom1-/-) mice were fed a high-fat diet for 8 weeks (Diet-Induced Obesity; DIO), and fasted for 4 hours before experiments. (E) Glucose disposal rates in DIO WT (Prom1+/+) and KO (Prom1-/-) mice were measured using glucose and insulin tolerance tests (n = 10 mice/group). 