Table 1.

Periosteal Dynamic Histomorphometric Measurements Performed on Col1(2.3)⁺/PTX⁺ Mice and Littermate Controls at the Femoral Midshaft

Mice	MS/BS (%)	MAR (µm/day)	BFR/BS (µm3/µm2/day)
Male, control	50 ± 7	2.6 ± 0.4	1.3 ± 0.3
Male, Col1(2.3)+/PTX+	75 ± 13c	2.7 ± 0.6	2.0 ± 0.6b
Female, control	45 ± 5	2.6 ± 0.5	1.2 ± 0.3
Female, Col1(2.3)+/PTX+	73 ± 15c	2.7 ± 0.7	2.0 ± 0.8a

Note: Measurements of percent mineralizing surface (MS/BS), mineral apposition rate (MAR), and bone-formation rate (BFR/BS) were performed on femurs of 8-week-old mice, male (n = 10) and female (n = 8). Statistically significant changes relative to the corresponding littermate control group are indicated by ^ap < .05, ^bp < .01, or ^cp < .001.