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作 者:范永祥[1] 刘琪[1] 张绍伟[1] 葛正龙[2]
机构地区:[1]贵州遵义医学院口腔医院 [2]遵义医学院生物化学教研室
出 处:《实用口腔医学杂志》2006年第1期115-117,共3页Journal of Practical Stomatology
基 金:贵州省教育厅基金资助项目;编号C-200;贵州省卫生厅优秀青年基金资助项目;编号D-164
摘 要:目的:探讨罗红霉素对脂多糖诱导的人牙周膜成纤维细胞肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)释放的影响。方法:采用ELISA方法,检测在不同剂量的罗红霉素作用下,脂多糖诱导的人牙周膜细胞中IL-6、TNF-α释放的变化。结果:LPS刺激后人牙周膜细胞TNF-α的释放显著高于正常对照组(360pg/ml vs 80pg/ml,3 h,P〈0.05)。与L组相比,罗红霉素组(20μg/ml)TNF-α水平12h显著降低,3—6h与L组无明显差异,而12h(520pg/ml vs 710pg/ml)、24h(220pg/ml vs 680pg/ml)显著降低(P〈0.05)。LPS组IL-6水平显著高于正常对照组(360pg/ml vs 105pg/ml,P〈0.05),罗红霉素组(20μg/ml)IL-6分泌量在6h(420pg/ml vs 670pg/ml)、12h(590pg/ml vs 810pg/ml)和24h(340pg/ml vs 630pg/ml)较L组均显著降低(P〈0.05)。结论:罗红霉素能显著抑制LPS刺激后人牙周膜细胞IL-6、TNF-α的释放。Objective:To test the effects of roxithromycin(RM) on TNF-α and IL-6 release from periodontal ligment fibroblasts(PDLCs) stimulated with lipopolysaccharide(LPS). Methods:PDLCs of passage 4 - 8 were cultured with RM at 2, 20 and 200 μg/ml respectively with 10 μg/ml of LPS. The control cells were cultured with culture medium only. The cultures were continued for 3,6,12 and 24 hours respectively. ELISA method was used to measure TNF-α and IL- 6 released into the cuhure medium from PDLCs in the different groups. Results:LPS increased both TNF-α and IL-6 release from PDLCs at all the time points( P 〈 0.05 ). RM inhibited the releases dosedependently(P 〈0.05 ). Conclusion: RM may inhibit the secretion of TNF-α and IL-6 of PDLCs stimulated with LPS.
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