Figure 1.

Immunocytochemical staining of RANKL in bone from Mg deficient and control animals. A. Represents animals on a 25% NR diet and B. the control group. Note the positive staining of osteoclasts (solid arrows) and osteoblasts (open arrows) in A. while minimal staining is observed the control animals (B). C. Represents animals on a 50% NR diet and D. the control group. Again, as observed in C., Mg deficient animals have much more intense staining of RANKL of osteoclasts (solid arrows) and osteoblasts (open arrows) than is observed the control animals (D).