In studies conducted on rats, phytoestrogens such as genistein,
formononetin or biochanin A are usually administered at a doses of 5–10 mg/kg [14,16,17]. In the
presented study, administration of glabridin at a dose of 5 mg/kg po to the ovariectomized rats did
not affect significantly the weight of analyzed bones. In all analyzed bones there was decreased
water content. As a compensatory action, the increase of organic substances content was observed,
however for antiosteoporotic effect, there should be increase of mineral content.
Effect of glabridin on mechanical properties of bones in ovariectomized rats was observed in the
femoral diaphysis (an increase of Young’s modulus) and the tibial metaphysis (an increase of
displacement for maximal load).
In previous studies conducted by Klasik-Ciszewska et al. [14] glabridin administered at a dose of 5
mg/kg po shows slightly positive effect on osteoporotically changed bone tissue in ovariectomized
rats. The authors noted, that the diameter of analyzed bones increased, the reduced area of the
transverse cross- sectional of the marrow cavity, the width of the trabeculae
increased and the epiphyseal cartilage decreased.