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Prednisone Prevents Particle Induced Bone Loss in the Calvaria Mouse Model

Overview
Journal Heliyon
Specialty Social Sciences
Date 2021 Sep 2
PMID 34471710
Citations 2
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Abstract

Introduction: Glucocorticoids are essential in the treatment of many chronic inflammatory and malignant diseases but are known to have detrimental effects on bone. This study aimed to investigate the effects of prednisone on osteoclast functioning in the calvaria particle-induced bone loss mouse model.

Methods: 12-week-old male C57BL6/J mice received subcutaneously implanted prednisone (2.5 mg/d, 60 day release (n = 14)) or placebo pellets (n = 10). Osteolysis of the calvaria bone was induced two weeks later by application of ultra-high-molecular-weight polyethylene- (UHMWPE) particles to the dome (vs sham operation). The extent of osteolysis was determined histologically and by micro-computer tomography.

Results: Prednisone significantly inhibited particle-induced osteolysis in the skull. No significant difference in osteoclast numbers was seen in mice with prednisone vs placebo treatment. Prednisone treatment alone without particle application did not reduce bone mineral density or deterioration in bone microarchitecture parameters.

Conclusions: The calvaria particle-induced bone loss mouse model can be adapted to investigate osteoclast activity and the effect of prednisone on osteoclasts. In this preventive experimental design, the application of short-term low-dose prednisone has osteoprotective effects without measurable systemic side effects on bone parameters.

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PMID: 39092287 PMC: 11291448. DOI: 10.3389/fendo.2024.1342938.


A Review on the Molecular Mechanisms of Action of Natural Products in Preventing Bone Diseases.

Okagu I, Ezeorba T, Aguchem R, Ohanenye I, Aham E, Okafor S Int J Mol Sci. 2022; 23(15).

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