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- 2016
慢性牙周炎患者和健康人牙龈成纤维细胞细胞活性和凋亡的比较研究
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Abstract:
摘要 目的:探索慢性牙周炎患者和健康人牙龈成纤维细胞(HGFs)细胞活性和凋亡之间的差异性,为阐明牙周炎的易感性提供实验依据。方法:收集慢性牙周炎患者和健康人的健康牙龈,进行体外培养获得HGFs,采用MTT法比较两组细胞的细胞活性,实时荧光定量PCR检测抗凋亡基因Bcl-2和促凋亡基因Bax在两种细胞中的表达水平及其比值。结果:与健康组相比,慢性牙周炎组HGFs细胞活性在培养4 d后明显下降(P＜0.05),而且在体外培养2 d、4 d细胞中Bcl-2/Bax的比值下降(P＜0.05),具有时间依赖性。结论:慢性牙周炎患者HGFs细胞活性下降,细胞凋亡增强,从细胞水平说明其存在牙周炎易感性
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