Fig. 6.

Serum CTx measured at necropsy (A) in the Si-deprived (n = 20 rats), Si-supplemented (n = 10) and standard rodent stock feed-fed reference (n = 10) groups. Serum CTx was significantly lower (P = 0.04; unpaired two-tailed Student's t-test) in the Si-supplemented group compared to the Si-deprived group. However, there was no significant difference between the two groups (Si-deprived (squares) and Si-supplemented (circles)) in the monthly samples collected during the study (B). Mean monthly serum CTx is also shown for the standard rodent stock feed-fed group as a reference for normal rats (dotted line).