Arch Oral Biol:新型壳聚糖-二甲双胍复合物可有效治疗牙周炎

2017-10-23 MedSci MedSci原创

本研究旨在研发一种基于壳聚糖-二甲双胍的嵌入式牙膜(CMIDF),用于治疗牙周炎及牙周炎所致的牙槽骨丧失。通过溶剂铸造技术制造CMIDF嵌入物,并对其进行物理特性评估,例如折叠耐力,表面pH,粘膜粘附强度,二甲双胍含量均匀性和释放情况。结果显示,在壳聚糖存在下,X射线衍射分析显示二甲双胍无结晶,证实二甲双胍成功地嵌入至CMIDF。傅里叶变换红外光谱显示,CMIDF的稳定性较好,二甲双胍和壳聚糖之间

本研究旨在研发一种基于壳聚糖-二甲双胍的嵌入式牙膜(CMIDF),用于治疗牙周炎及牙周炎所致的牙槽骨丧失。

通过溶剂铸造技术制造CMIDF嵌入物,并对其进行物理特性评估,例如折叠耐力,表面pH,粘膜粘附强度,二甲双胍含量均匀性和释放情况。

结果显示,在壳聚糖存在下,X射线衍射分析显示二甲双胍无结晶,证实二甲双胍成功地嵌入至CMIDF。傅里叶变换红外光谱显示,CMIDF的稳定性较好,二甲双胍和壳聚糖之间的相容性也较好。

对颌骨第一磨牙通过牙龈卟啉单胞菌多糖注射与丝线结扎相结合的方法诱导牙周炎。将大鼠分为5组(8只大鼠/组):健康,未治疗的牙周炎组;牙周炎加CMIDF-A(1.99±0.09mg二甲双胍,总量4.01±0.05mg),牙周炎加CMIDF-B(2.07±0.06mg二甲双胍,总量7.56±0.09mg)和牙周炎加壳聚糖膜(7.61±0.08mg)。四周后,通过micro-CT和组织学技术评估下颌骨的骨丢失。

结果健康组小鼠牙槽骨完好无损。与未治疗的牙周炎组相比,CMIDF局部应用可明显改善牙槽骨丧失情况。表明新型CMIDF在实验性牙周炎大鼠模型中表现出良好的抗菌活性,有效减少牙槽骨破坏。

总之,该研究结果表明,新型CMIDF在大鼠模型中显示出良好的抗菌活性,并可改善牙槽骨丧失情况。

原始出处:

Khajuria DK, Patil ON, Karasik D, Razdan R. Development and evaluation of novel biodegradable chitosan based metformin intrapocket dental film for the management of periodontitis and alveolar bone loss in a rat model. Arch Oral Biol. 2017 Oct 16;85:120-129. doi: 10.1016/j.archoralbio.2017.10.009.

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    2018-08-27 sunylz
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    2017-11-16 小几洁
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    2017-10-23 happsf

    学习

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