Table 1. Effects of DHEA and its derivatives on BrdUrd incorporation in human neuropheres.

Steroid	Common name	% BrdUrd+ cells
No steroid		13.8 ± 1.7
3β-hydroxyandrost-5-en-17-one	DHEA	23.6 ± 1.5*
4-pregnene-3,20-dione	Pregnenolone	17.1 ± 0.8
Androst 5-ene-3β, 17β-diol	Androstenediol	17.3 ± 0.6
3β, 7α-dihydroxyandrost-5-en-17-one	7α-hydroxy DHEA	15.1 ± 1.7
3β, 7β-dihydroxyandrost-5-en-17-one	7β-hydroxy DHEA	14.0 ± 2.1
3β-hydroxyandrost-5-ene-7, 17-dione	7-oxo-DHEA	12.9 ± 1.7
Androst-5-ene-3β, 7β, 17β-triol		19.1 ± 2.8
Androst-5-ene-3β, 16α, 17β-triol		15.6 ± 2.1

^*P < 0.05 versus all others.