Table 1

Ratio of RANKL/OPG in Osteoclasts and Osteoblasts in Rats on a .04% NR Diet


Osteoclast
Osteoblast

Day 1 Control
1
0.44
Day 1 .04% NR
0.4
.046
Day 3 Control
0.6
0.55
Day 3 .04% NR
0.51
0.24
Day 8 Control
1
0.44
Day 8 .04% NR
0.25
0.33
Day 15 Control
1.25
0.29
Day 15 .04% NR
0.79
0.38
Day 22 Control
0.65
0.05
Day 22 .04% NR
0.12
0.25
Day 28 Control
.029
0.12
Day 28 .04% NR
.052
0.16
Day 84 Control
.096
0.14
Day 84 .04% NR
0.256
1.66

As shown in Table 1 there is no apparent excess of RANKL relative to OPG in rats on a diet containing .04% of NR until after day 22.

Rude et al. Nutrition & Metabolism 2005 2:24   doi:10.1186/1743-7075-2-24