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Effect of D-003, a Mixture of High Molecular Weight Aliphatic Acids, on Glucocorticoid- and Lipopolysaccharides (LPS)-Induced Osteonecrosis

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Publisher Brieflands
Specialty Pharmacology
Date 2013 Nov 20
PMID 24250554
Citations 2
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Abstract

Osteonecrosis (ON) is characterized through the impairment of osseous blood flow that leads to the collapse of femur head. Corticoid-induced ON in rats and lipopolysaccharide (LPS)-induced in rabbits are useful models to assess the efficacy of potential treatments on this disease. D-003 inhibits the mevalonate pathway, lipid peroxidation and prevents osteoporosis in rats through increasing the osteoclast apoptosis. This study investigated the effects of D-003 on corticoid- and LPS-induced ON in rats and rabbits. Corticoid-induced ON: Rats were randomized into five groups. A negative control and four groups treated with prednisolone 6 mg/Kg: a positive control and three treated with D-003 (5, 25 and 200 mg/Kg) for 80 days. All positive controls presented ON areas. D-003 significantly reduced the numbers and proportions of ON lesions, as compared to the positive control group. LPS-induced ON in rabbits: Rabbits were randomized into five groups: a negative control and four injected with a single intra-venous injection of LPS (10 μg/Kg) including a positive control and three with D-003 (5, 25 and 200 mg/Kg) for 30 days. ON was seen in all positive controls. The incidence of ON and the number of ON lesions in the groups treated with D-003 (25 and 200 mg/Kg) was significantly lower compared to the positive controls. LPS injection significantly increased the size of bone marrow fat cells in positive controls and such increase was significantly decreased by D-003. In conclusion, D-003 reduced ON lesions in corticoid-and LPS-induced ON and also the size of bone marrow fat cells in rabbits with LPS.

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