Table 1.

Peak plasma glucagon and epinephrine responses during the hypoglycemic clamping period after local injection of NMDA and AMPA receptor agonists and antagonists

	Glucagon (pg/mL)		Epinephrine (pg/mL)
	Basal	Hypoglycemia	Basal	Hypoglycemia
Control (n = 6)	76 ± 11	402 ± 58	100 ± 41	4,957 ± 557
NMDA (n = 6)	92 ± 13	543 ± 152	102 ± 11	4,516 ± 486
AP5 (n = 5)	49 ± 27	576 ± 49	135 ± 29	5,146 ± 754
AMPA (n = 5)	53 ± 3	583 ± 118	94 ± 18	5,847 ± 183
YM90K (n = 6)	61 ± 7	491 ± 85	78 ± 22	5,150 ± 345

Data are mean ± SEM.