Table 1.

Plasma corticosterone concentrations and adrenal gland weights of control and stressed rats

Group	Corticosterone concentration (nmol/ml)			Adrenal gland weight (mg)
	B-B1	B-A2	After3
Control
Day 1	0.32±0.07	0.33±0.05	0.36±0.06	29.30±1.82
Day 15	0.31±0.03	0.31±0.07	0.32±0.04	32.39±1.84
Day 30	0.31±0.04	0.24±0.05	0.29±0.05	36.20±2.89
Stressed
Day 1	0.29±0.05	0.40±0.06	0.55±0.03m	30.91±0.97
Day 15	0.34±0.06	0.31±0.04	0.30±0.08c	35.07±1.98
Day 30	0.30±0.04	0.27±0.05	0.36±0.07	42.61±1.79a b d e

¹Basal-before stress exposure

²Basal-after stress exposure

³Immediately after removing from com-box

^a P<0.001 significant difference versus Day 1 of the control group

^b P<0.001 significant difference versus Day 1 in the same group

^c P<0.01 significant difference versus Day 1 in the same group

^d P<0.05 significant difference versus Day 15 in the same group

^e P<0.01 significant difference versus Day 15 in the control group

^m P<0.001 significant difference versus B-B in the same group

Values are expressed as mean±SEM of 7 rats. Letters a to e show differences in column and letter m shows difference in row