Table 1.

MRI measured parameters (mean ± standard errors across subjects) at the first time point (i.e., 7 min after glucose) and the last time point (i.e., 40 min after glucose)

Condition	CMRO2 (µmol/100 g/min)	CBF (ml/100 g/min)	Y v (%)	OEF (%)	Blood glucose (mg/dl)
Glucose ingestion group
Pre glucose	175.3 ±9.0	61.0 ± 3.0	63.0 ± 1.4	35.9 ± 1.6	90.0 ± 2.2
Post glucose	161.9 ± 9.0	60.0 ± 2.2	65.4 ± 1.2	33.5 ± 1.4	141.7 ± 7.5
P value	0.0009	0.58	0.016	0.016	<0.0001
Control group
Pre MR scan	167.6 ± 6.5	58.1 ± 2.7	59.8 ± 1.3	38.8 ± 1.4	84.9 ± 2.6
Post MR scan	166.7 ± 6.2	58.0 ± 2.8	59.6 ± 2.1	39.0 ± 2.1	89.0 ± 2.3
P value	0.80	0.87	0.84	0.84	0.21

P values indicate the significance of difference between two time points using paired t test.