Table 1.

Estrogen (33 ng/g) had no effect on CREB expression within cholinergic neurons and the total number of ChAT-positive neurons in STR, MS-DB, and SI of WT mice 15 min, 1 h, or 4 h after treatment

Area	Treatment	Time
		15 min		1 h		4 h
		%	Total	%	Total	%	Total
STR	Vehicle	91.6 ± 1.6	197.0 ± 21	90.9 ± 0.6	196.0 ± 2.9	91.8 ± 1.2	198.2 ± 2.1
	E2	89.4 ± 0.5	195.2 ± 1.2	90.1 ± 0.9	195.2 ± 2.2	89.5 ± 1.7	196.1 ± 1.8
MS-DB	Vehicle	95.2 ± 0.5	120.6 ± 3.6	90.2 ± 1.1	119.3 ± 1.9	90.6 ± 1.6	117.3 ± 1.2
	E2	92.6 ± 0.2	117.1 ± 2.2	92.6 ± 1.4	120.0 ± 2.6	91.5 ± 1.8	121.9 ± 2.9
SI	Vehicle	99.8 ± 0.1	67.2 ± 4.2	99.2 ± 0.2	70.3 ± 4.1	99.1 ± 0.2	71.2 ± 3.5
	E2	97.9 ± 0.2	69.4 ± 5.3	99.1 ± 0.1	69.6 ± 3.9	99.3 ± 0.1	72.6 ± 3.7

Data in the first column of each time point demonstrate the percentage of ChAT-immunopositive neurons expressing CREB (±SEM) (%). Data in the second column of each time point demonstrate the total number of ChAT-immunopositive neurons (±SEM) (Total); n = 5-7.