Mineral and Skeletal Homeostasis Influence the Manner of Bone Loss in Metabolic Osteoporosis due to Calcium-Deprived Diet in Different Sites of Rat Vertebra and Femur

Table 4

Dynamic histomorphometric parameters in L5 vertebral body sections.

Group	Anterior Ct; Nf B Ar (mm^2)	Anterior Ct MAR (µm/day)	Posterior Ct; Nf B Ar (mm^2)	Posterior Ct MAR (µm/day)	Tb MS (%)
2	0.063 ± 0.08	4.10 ± 0.71	0.035 ± 0.01	3.47 ± 0.50	11.40 ± 2.30
3	0.075 ± 0.04	4.19 ± 1.40	0.033 ± 0.02	3.26 ± 0.66	53.03 ± 6.44
4	0.076 ± 0.01	4.22 ± 0.39	0.036 ± 0.07	3.42 ± 0.54	50.80 ± 9.52

All values are expressed as mean ± sd, ANOVA followed by Bonferroni’s test: < 0.001 versus Group 2. Group 2: control, normal diet; Group 3: calcium-deprived diet for 4 weeks; Group 4: calcium-deprived diet, plus concomitant administration of PTH (1-34) 40 µg/kg/day, for 4 weeks.