Table 3.

Changes in blood pressure, blood glucose, and insulin level after 75 g oral glucose ingestion or intravenous administration of 20% glucose 20 mL.

	Before	30 min	60 min	90 min	120 min
Baseline
75 g oral glucose ingestion
Systolic blood pressure, mm Hg	162	116	119	129	130
Diastolic blood pressure, mm Hg	90	69	72	80	80
Blood glucose, mg/dL	100	208	240	285	274
Insulin, μU/L	4.4	19.2	25.8	36.3	58.5
20% glucose 20 mL intravenously
Systolic blood pressure, mm Hg	146	147	157	176	160
Diastolic blood pressure, mm Hg	85	88	91	97	96
Blood glucose, mg/dl	100	120	106	102	103
Insulin, μU/l	4.0	5.7	3.8	3.5	3.0
After taking sitagliptin 25 mg just after waking
75 g oral glucose ingestion
Systolic blood pressure, mm Hg	190	148	155	137	144
Diastolic blood pressure, mm Hg	103	80	85	81	84
Blood glucose, mg/dL	100	157	144	170	186
Insulin, μU/L	4.5	20.7	13.7	18	23.8