Phenotypic analysis of Ctnnb1^fl/fl/LysM^+/cre mice. (A) Von Kossa/van Gieson-staining of non-decalcified spine sections from 12-wk-old Ctnnb1^fl/fl/LysM^+/+ and Ctnnb1^fl/fl/LysM^+/cre mice. Bars, 1 mm. (B) Histomorphometric quantification of trabecular bone volume (BV/TV), bone formation rate (BFR/BS), osteoblast number (Ob.N/B.Pm), and osteoblast surface (ObS/BS) in the same mice. All error bars represent mean ± SD (n = 6). Asterisks indicate statistically significant differences between the two groups.