Insulin secretion curve normal and diabetics 1600 1400 Hhtype2 1200 占1000 -normal 800 obese 600 400 200 0 30 60 90 120 clock time(hours)Insulin secretion curve :normal and diabetics 0 200 400 600 800 1000 1200 1400 1600 0 3 0 6 0 9 0 120 clock time(hours) insulin(μU/ml） type2 normal obese type 1