J Periodontal Res:甲硝唑或正苯甲酰基噻唑纳米球对牙周炎进展的调节作用

2018-03-31 MedSci MedSci原创

本研究旨在开发pH反应性聚乳酸 - 乙醇酸共聚物和壳聚糖(PLGA /壳聚糖)纳米球作为炎症反应载体,并评估纳米球包封甲硝唑(一种抗生素)和N-苯甲酰噻唑溴化物(PTB) ,一种宿主调节剂,用于治疗牙周炎。

本研究旨在开发pH反应性聚乳酸 - 乙醇酸共聚物和壳聚糖(PLGA /壳聚糖)纳米球作为炎症反应载体,并评估纳米球包封甲硝唑(一种抗生素)和N-苯甲酰噻唑溴化物(PTB) ,一种宿主调节剂,用于治疗牙周炎。

PLGA /壳聚糖纳米球是使用水包油乳液法制作的。在大鼠上颌骨诱导实验性牙周炎,并且将这些位点随机分配进行四种治疗,包括单纯牙周炎(PR),单独的纳米球形成的牙周炎,包封甲硝唑(MT)的纳米球和包封PTB(PB)的纳米球。保留结扎直至处死,并通过牙周骨吸收(PPBL),炎性细胞浸润和胶原沉积的进展以评估治疗结果。

结果:包封的药物从纳米球快速释放,而在pH5.5时没有显着的初始突释。与PR组相比,第4天时MT和PB组的PPBL显着降低(P <0.05)。第21天,PB组PPBL显着降低(P <0.05)。在MT组和PB组中,MT组和PB组的炎症明显减轻,PR组和牙周炎组与单纯纳米球组相比,炎症明显减轻(P <0.05)。

结论:包封甲硝唑或PTB的PLGA /壳聚糖纳米球具有调节牙周炎进展的潜力。

原始出处:

J.‐H. Lin, et al. Modulation of periodontitis progression using pH‐responsive nanosphere encapsulating metronidazole or N‐phenacylthialzolium bromide. Journal of Periodontal Research. 2018 February. doi:10.1111/jre.12481

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    2018-12-14 feather89
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    2018-04-02 whmdzju
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    2018-04-02 liuyong2982
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    2018-04-01 changjiu

    学习一下谢谢

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