Figure 6. The effect of metformin and alendronate on serum biomarker, pathology and biomechanics. (A) mineral apposition rate (MAR). (B) bone formation rate per bone surface (BFR/BS). (C) maximum load. (D) stiffness. (E) ultimate displacement. (F) energy absorption. (G) serum OCN. (H) Serum TRAP 5b. (I) Serum CTX-1. (J) Serum GLP-1.