Efeitos de tratamento combinado de alendronato de sódio, atorvastatina cálcica e ipriflavona na osteoporose induzida com dexametasona em ratas

Abstract

The objective of this work was to study the influence of the combinations: biphosphonate (alendronate of sodium) + statin (calcic atorvastatin), biphosphonate (sodium alendronate) + flavonoid (ipriflavone) and statin (calcic atorvastatin) + flavonoid (ipriflavone) in female rats with osteoporosis induced by the glucocorticoid dexamethasone. The influence of the combinations of those drugs was observed through tests of the biochemical markers of bone remodeling, such as, levels of serum calcium and phosphorus and bone alkaline phosphatase and through histomorphometric exam, visualizing the bone trabecular density. Through the evaluation of the bone trabecular density it was possible to verify the clear increase in any group of treated animals. The combinations with biphosphonate presented high rates of bone tissue restoration, reaching higher values than those of normal animals. The results obtained with biochemical markers were not statistically significant and did not subsidies the diagnosis and the follow of the osteoporosis. However, the histomorphometric evaluation allowed us the static and dynamic analyses as well as detection of tissue alterations in the bone metabolic unit, particularly in the trabecular bone.