TABLE 4.

Plasma glucose and hormone responses during day 2 insulin-induced hypoglycemia after day 1 hindbrain or third ventricular vehicle injection

Time point (min)	Glucose (mg/dl)	Glucagon (pg/ml)	Epinephrine (pg/ml)	Norepinephrine (pg/ml)	ACTH (pg/ml)	Corticosterone (ng/ml)
Antecedent hindbrain saline
0	128 ± 2	55 ± 17	139 ± 29	261 ± 16	15 ± 4	47 ± 10
60	42 ± 3	518 ± 70	3,666 ± 605	852 ± 50	203 ± 22	186 ± 14
120	34 ± 3	540 ± 56	4,624 ± 389	1,144 ± 97	185 ± 10	185 ± 13
Antecedent third ventricle saline
0	127 ± 2	71 ± 10	109 ± 14	276 ± 30	7 ± 2	46 ± 11
60	43 ± 2	402 ± 28	2,841 ± 298	900 ± 91	150 ± 10	236 ± 21
120	31 ± 3	430 ± 45	4,468 ± 770	1,170 ± 131	188 ± 18	282 ± 25

Data are means ± SE; n = 8 rats in each group.