(a) Photographs of Becn1 WT and cKO mice. (b) Quantification of body weights at 6th month (n = 5 WT, n = 12 cKO, male). (c) Photographs of spleens from Becn1 WT and cKO mice. (d) Quantification of spleen at 6th month (n = 5 WT, n = 12 cKO, male) normalized to the body weights. (e) µCT of the femurs from Becn1 WT and cKO mice. (f) Quantification of femur lengths measured at 6th month (n = 5 WT, n = 12 cKO, male). (g) µCT of the femur cross-sections in Becn1 WT and cKO mice. (h) Quantification of femur cortical bone thickness measured at 6th month (n = 5 WT, n = 12 cKO, male). (i) µCT of the trabecular bone from Becn1 WT and cKO mice. Quantification of BV/TV (j), trabecular thickness (k), trabecular number (l), and trabecular spacing (m) measured at 6th month (n = 5 WT, n = 12 cKO, male). (n) H&E staining of the femur head. Bar = 200 µm. (o) TRAP staining in the femur trabecular bone. Bar = 100 µm. (p) Quantification of TRAP+ osteoclasts per bone perimeter. (q) TRAP staining in the femur cortical bone. Bar = 100 µm. (r) Quantification of the TRAP+ osteoclasts per bone perimeter.