Table 1.

Comparison of OPG/RANKL levels in four groups (mean ± SD).

	n	OPG (pmol/l)	RANKL (pmol/l)
Sham	20	0.55 ± 0.05∗	0.53 ± 0.07∗
OVX	20	0.18 ± 0.06#	0.79 ± 0.1
OVX+ole	20	0.45 ± 0.05∗,#	0.43 ± 0.13∗,Δ
OVX+E2	20	0.47 ± 0.04∗,#	0.55 ± 0.11∗

^∗ P < 0.05 vs. OVX group; ^#P < 0.05 vs. sham group; ^ΔP < 0.05 vs. OVX+E2 group.