Table 1.
Histomorphometric analysis of proximal tibia cancellous bone
| Groups | Mineralizing surface, % | Mineral apposition rate, μm/day | Bone formation rate/bone surface, μm2/μm per day | Osteoclast surface, % |
|---|---|---|---|---|
| Sham + vehicle | 24.56 ± 1.15 | 1.26 ± 0.06 | 114.15 ± 9.9 | 5.10 ± 0.49 |
| OVX + vehicle | 30.45 ± 2.39* | 1.43 ± 0.08 | 163.61 ± 18.6* | 8.38 ± 0.67* |
| OVX + EE | 20.22 ± 1.40# | 1.03 ± 0.06*# | 77.91 ± 9.8# | 4.55 ± 0.46# |
| OVX + PF-431396 (10) | 36.81 ± 2.09*#† | 1.77 ± 0.09*#† | 240.17 ± 20.3*#† | 7.83 ± 0.73*† |
| OVX + PF-431396 (30) | 40.60 ± 1.77*#† | 1.96 ± 0.09*#† | 291.43 ± 19.1*#† | 6.13 ± 0.48# |
*, P < 0.05 vs. sham plus vehicle;
#, P < 0.05 vs. OVX plus vehicle;
†, P < 0.05 vs. EE.