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Acta Odontológica Latinoamericana

versão On-line ISSN 1852-4834


RODRIGUEZ, Juliana; ESCUDERO, Natalia D  e  MANDALUNIS, Patricia M. Effect of strontium ranelate on bone remodeling. Acta odontol. latinoam. [online]. 2012, vol.25, n.2, pp.208-213. ISSN 1852-4834.

Osteoporosis is a disease in which the microarchitecture of bone tissue deteriorates, with consequent loss of bone mass. Strontium ranelate (SrR) is currently used for treatment of the condition. SrR may have a dual effect: anabolic (stimulating pre-osteoblast replication) and anti-catabolic (reducing osteoclastic activity). However, its mechanism of action has not yet been completely elucidated. The aim of this study is to evaluate the effect of SrR on bone remodeling in healthy Wistar rats. Two-month old female Wistar rats were administered SrR (2 g/L) in drinking water for 30 weeks. Oriented histological sections were prepared from lower jaw and tibia and stained with H&E, and the following histomorphometric parameters were evaluated: a) in interradicular bone: bone volume, and percentages of bone-formation, quiescent and bone-resorption surfaces; and b) in tibia: bone volume, total thickness of growth cartilage, thickness of hypertrophic cartilage zone and number of megakaryocytes. No significant difference was found in the parameters between the control animals and those treated with SrR. The results would therefore show that SrR does not alter the bone parameters studied in this experimental design.

Palavras-chave : Strontium ranelate; Bone remodeling; Osteoporosis.

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