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Biomed Res Int:抗菌肽Nal-P-113抑制牙周病原菌的生长并改善牙周状况

2018-05-09 MedSci MedSci原创

牙周病的特征包括牙周结缔组织降解和牙槽骨丧失。药物治疗常用作严重慢性牙周炎、侵袭性牙周炎和牙周炎相关系统疾病的辅助手段。 Nal-P-113是一种修饰的抗菌肽,氨基酸β-萘基丙氨酸特异性取代P-113的组氨酸残基,既往研究证实,这种新型肽在一定浓度范围内对人体无毒性。本研究旨在评估Nal-P-113对临床研究中牙周病原体和牙周状态的影响。在一项口腔临床试验中,与对照组相比,实验组的探诊深度和出血指

牙周病的特征包括牙周结缔组织降解和牙槽骨丧失。药物治疗常用作严重慢性牙周炎、侵袭性牙周炎和牙周炎相关系统疾病的辅助手段。

Nal-P-113是一种修饰的抗菌肽,氨基酸β-萘基丙氨酸特异性取代P-113的组氨酸残基,既往研究证实,这种新型肽在一定浓度范围内对人体无毒性。本研究旨在评估Nal-P-113对临床研究中牙周病原体和牙周状态的影响。

在一项口腔临床试验中,与对照组相比,实验组的探诊深度和出血指数呈下降的趋势。SEM结果证实Nal-P-113抑制了斑块的成熟。实时聚合酶链反应结果显示,当受试者给予Nal-P-113时,龈下菌斑中的具核梭杆菌、格氏链球菌、齿垢密螺旋体和牙龈卟啉单胞菌的水平降低。细菌生长曲线分析和生物膜敏感性分析证实,浓度为20μg/mL的Nal-P-113抑制了具核梭杆菌、格氏链球菌和牙龈卟啉单胞菌的生长以及生物膜的形成。

综上所述,该研究结果表明,Nal-P-113可有效地减少牙周病原体并改善牙周状态。

原始出处:

Wang H, Ai L, et al., The Effects of Antimicrobial Peptide Nal-P-113 on Inhibiting Periodontal Pathogens and Improving Periodontal Status. Biomed Res Int. 2018 Mar 15;2018:1805793. doi: 10.1155/2018/1805793. eCollection 2018.

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    2019-03-27 sunylz
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    2018-05-11 仁心济世
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    2018-05-10 深海的鱼

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白细胞释放的抗菌肽有助于消除病原体和激活免疫系统,但是其在血栓形成中的作用尚未完全了解。在这里我们显示cathelicidin LL-37在急性心肌梗塞患者的血栓中的水平较高。其小鼠同系物CRAMP存在于血管损伤后的小鼠动脉血栓中,并且主要来源于循环中性粒细胞。骨髓嵌合体小鼠中造血CRAMP的缺乏减少了血小板募集和血栓形成。LL-37和CRAMP通过蛋白酪氨酸激酶Src/Syk和磷脂酶C参与糖蛋白

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