Genetics / Pathology / Gene expression / Signal Transduction / Spinal Muscular Atrophy / Mice / Tibia / Animals / Three Dimensional Imaging / Osteoclasts / Bone Density / The / Behavioral Animal Models / Clinical Sciences / Mouse Model / Bone Loss / Biological markers / Bone remodeling / X ray Computed Tomography / Mice / Tibia / Animals / Three Dimensional Imaging / Osteoclasts / Bone Density / The / Behavioral Animal Models / Clinical Sciences / Mouse Model / Bone Loss / Biological markers / Bone remodeling / X ray Computed Tomography