Abstract: Compositions and methods for reducing, or inhibiting bone loss in a subject in need thereof have been developed. Pharmaceutical compositions including one or more osteogenic compounds, or functional derivatives thereof, in an effective amount to reduce, or inhibit bone loss, or promote bone formation, preferably via stimulation of osteoblast differentiation, are provided. The compositions are particularly suited for treating bone loss associated with osteoporosis. Methods for treating, or preventing bone loss using the composition, optionally in combination with one or more therapeutic, prophylactic or diagnostic agents, or procedures, are described.

Abstract: Provided herein are timosaponin compounds of Formula I, II, III, I?, II? and III?, pharmaceutical compositions comprising the compounds, and processes of preparation thereof. Also provided are uses of said timosaponin compounds for preparing medicament for the treatment of diseases associated with beta-amyloid in hosts or subjects in need thereof.