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- W2094829500 abstract "Eight biomaterials eluted from four different types of dental restorative biomaterials, that is, from glass–ionomer cement (GIC: Ketac-fil and Fuji II), resin-modified glass ionomer cement (RM-GIC: Fuji II LC and Photac-fil), composite (Z100 MP and Tetric-flow), and compomer (Compoglass F and F-2000), were studied for their cytotoxic properties in relation to glutathione (GSH) content in cultured human gingival fibroblasts. Z100 MP, Tetric-flow, and Compoglass F were less cytotoxic than the others, with a toxic concentration of 50% (TC 50) > 24% (of eluate), as determined by the MTT test. F-2000, Tetric-flow, and the other biomaterials were relatively more cytotoxic (TC 50 = 9–16%). With the exception of Z100 MP, all the biomaterials induced a depletion of cellular glutathione (GSH) that was variable depending upon the biomaterial eluates. The strongest GSH depletion was with F-2000, Fuji II, and Photac-fil. GSH depletion, with Compoglass and F-2000, was rapid–detectable after one h of cell treatment and complete within 3 h–whereas a longer period of incubation was required for the other biomaterials. Interestingly, the drug cytotoxic effects induced by all the biomaterials were prevented by cell treatment with the antioxidant N-acetylcysteine (NAC). This study provides evidence that the cytotoxic property of dental restorative biomaterials is associated with depletion of the glutathione level in gingival fibroblasts. While the molecular mechanisms of this phenomenon require further investigations, our data suggest that NAC may be useful in preventing the cellular damage induced by dental restorative biomaterials. © 2000 John Wiley & Sons, Inc. J Biomed Mater Res, 51, 469–474, 2000." @default.
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- W2094829500 date "2000-01-01" @default.
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- W2094829500 title "Dental restorative biomaterials induce glutathione depletion in cultured human gingival fibroblast: Protective effect of N-acetyl cysteine" @default.
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- W2094829500 doi "https://doi.org/10.1002/1097-4636(20000905)51:3<469::aid-jbm22>3.0.co;2-b" @default.
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