Table 2.

Stereological data from the dentate gyrus

	C57BL/6	BALB/c	CD1 (ICR)	129/SvJ
Volume of the granule cell layer (μm3)	2.63 × 108	2.71 × 108	3.57 × 108	2.90 × 108
	± 0.16 × 108	± 0.34 × 108	± 0.27 × 108	± 0.45 × 108
Total number of granule cells	2.39 × 105	2.42 × 105	3.51 × 105	2.80 × 105
	± 0.25 × 105	± 0.30 × 105	± 0.27 × 105	± 0.32 × 105
Neuronal density (cells/sample vol.)	8.14 ± 0.18	9.19 ± 0.77	8.86 ± 0.18	8.77 ± 0.21

Stereological data from the dentate gyrus: volume, total granule cell number and neuronal density. All numbers are mean ± SE (n = 5). Sample volume was 9,000 μm³. Statistical analyses are in Table 1.