J Endod:姜黄素A-纯天然药剂的根管消毒作用:冲洗、药物释放和光敏化影响

2019-09-28 lishiting MedSci原创

这篇研究的目的是将姜黄素混入多聚纤维并测试其抗菌效果以及在根管消毒中的潜在应用价值。

这篇研究的目的是将姜黄素混入多聚纤维并测试其抗菌效果以及在根管消毒中的潜在应用价值。

研究通过静电效应获取姜黄素修饰纤维,并在已培养7天的内氏放线菌生物膜中进行测试。药效测试如下:2.5和5.0 mg/mL的姜黄素修饰纤维, 2.5和5.0 mg/mL姜黄素类冲洗剂, 生理盐水(阴性对照)和阳性对照(2%氯己定, 1%次氯酸钠和三联抗生素糊剂(TAP, 1 mg/mL))。所有药剂除了阳性对照均按照光暴露方案进行测试(比如:通过发光二极管每40秒进行光活化,共持续4分钟或者不进行光活化)。药剂处理完成后移除,施加1 mL的生理盐水;随后将生物膜从玻板上刮除,按照1:2000进行稀释。旋转涂擦以接种于厌氧血琼脂平板。24小时后,计算克隆形成单位(colony-forming units/mL, n = 11/group)以评估抗菌效果。

结果显示,阳性对照组抗菌活性显著,其次为姜黄素冲洗液,最后为光活化的姜黄素修饰纤维。姜黄素类冲洗剂组中的活菌数量与施以TAP组相比显著减少。不含姜黄素纤维、生理盐水和非光活化的姜黄素修饰纤维未表现出任何抗菌活性。

结论:在感控方面,姜黄素看起来是一种TAP的潜在替代物,但是它有最小的抗菌浓度(2.5 mg/mL)。光活化的姜黄素类药剂可能对获得更好的抗生物膜活性具有重要意义。

原始出处:

Sotomil JM, Münchow EA, et al. Curcumin-A Natural Medicament for Root Canal Disinfection: Effects of Irrigation, Drug Release, and Photoactivation. J Endod. 2019 Sep 18. pii: S0099-2399(19)30587-4. doi: 10.1016/j.joen.2019.08.004.

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    2020-12-24 Zx胡医生

    #姜黄素#静电修饰纤维

    0

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    2019-09-30 huperzia
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本研究旨在评估姜黄素和奥硝唑治疗慢性牙周炎的效果。 研究纳入了20名年龄在27至53岁之间的男性,诊断为慢性牙周炎,双侧均有探诊深度> 5mm的牙周袋。测量每名患者的菌斑指数、探诊深度和临床附着水平。患者接受完整的预防治疗,包括洁治和根面平整,之后将两种测试凝胶注射到两侧选定的两个实验位点,该位点探诊深度(PD)> 5mm,且对称。在第0天和第30天记录牙周袋PD,临床附着丧失和

PNAS:浙江大学教授新研究,姜黄素如何抑制癌症

研究人员发现佐料姜中一种天然存在的化合物:姜黄素与双特异性酪氨酸调节激酶2(DYRK2,生物通注)能在原子水平上结合。抑制癌症。