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KMID : 0362720080460090563
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Journal of the Korean Dental Association
2008 Volume.46 No. 9 p.563 ~ p.573
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Effects of Simvastatin on osteogenesis of rat osteoblast-like cells, UMP-106
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Hwang Eui-Kwan
Ryu Dong-Mok
Jee Yu-Jin
Lee Deok-Won
Lee Hyeon-Woo
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Abstract
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Purpose : The purpose of this study is to investigate the effects of Simvastain, which is HMG-CoA reductase inhibitor, on proliferation and differentiation of osteoblast.
Materials & Methods : Twenty-four cell culture plates containing essential medium were seeded with UMR-106 cell lines, at density of 5 x cells per plate. Each plates were incubated with 5% incubator . Starting from 2 days after incubation, cell culture medias were replaced with Osteogenesis induction media every 2 days, for 12 days. In some plates, 0.01, 0.1, 1, 10, of Simvastatin were added with Osteogenesis induction media, and classified as "test group". Those not added with Simvastatin were classified as "control group".
Results : 1. When Alrizarin Red staining was observed with naked eye, control group showed normal deep red color, but test group show rapid decrease of red color as Simvastatin concentration increased more than . 2, When observed with microscope, compared to control group, amount of osteo matrix stained with Alrizarin Red decreased rapidly in Simvastatin concentration more than . 3. In optical density analysis, regarding control group as a basis, mineral deposition decreased rapidly when Simvastatin concentration increased more than . 4. In flow cytometry analysis, survival rate of UMR-106 cell showed no changes in both control group and test group.
Conclusion : From the above results, we were able to identify that Simvastatin inhibited osteogenesis without effecting survival or cell number of osteoblasts.
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KEYWORD
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Osteogenesis, Simvastatin, UMR-106
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