J Endod:牙本质条件处理的方法对于牙髓再生的影响

2020-06-17 lishiting MedSci原创

这篇研究的目的是为了评估(1)NaOCl-EDTA冲洗的优化对于牙髓干细胞(DPSCs)活力和形态的影响,(2)单独使用优化的EDTA方法或纳米气泡水(NBs)对细胞行为的影响。

这篇研究的目的是为了评估(1)NaOCl-EDTA冲洗的优化对于牙髓干细胞(DPSCs)活力和形态的影响,(2)单独使用优化的EDTA方法或纳米气泡水(NBs)对细胞行为的影响。

在第一部分实验中,研究将牙本质片采用以下方法实施条件处理:1)NaOCl, 随后用PBS (NP); (2)NP, 随后用EDTA (NPE); (3)NPE, 随后用PBS (NPEP); (4)不用PBS冲洗(NE)或(5)仅最终用PBS冲洗(NEP)。检测DPSC的活力与形态。在第二部分实验中,将牙本质片采用以下方法实施条件处理:(1)第一部分中的优化方法(EDTA); (2)采用NBs (EN)进行EDTA预备; (3)超声激活的EDTA (EU)或(4) EN冲洗(ENU)。分别通过ELISA, WST-1细胞活力检测& live-dead检测, 和transwell迁移检测评估TGF-β的释放以及DPSC活力、形态和迁移。数据采用Kruskal Wallis或one-way ANOVA和post-hoc检验进行统计学评估。

结果显示,NPEP组的细胞活力最高(p<0.05),以进行随后的实验。与EDTA相比,EU能够改善TGF-β的释放以及细胞的活力和迁移(p<0.05)。采用EDTA和NBs预备并未改变EDTA条件处理牙本质的生物学特质(p>0.05)。

结论:采用PBS去除残余EDTA能够改善牙本质表面细胞的活性。超声激活能够增强生长因子的释放和生物学特质,而EDTA和NBs的预备展现出与常规EDTA相似的效果,并且不影响细胞活性。

原始出处

Hacer Aksel, Hajar Albanyan, et al. Dentin Conditioning Protocol for Regenerative Endodontic Procedures. J Endod., 2020 May 29;S0099-2399(20)30344-7. doi: 10.1016/j.joen.2020.05.010.

 

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    2020-07-25 jxrzshh
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