华西口腔医学杂志

• 临床研究 • 上一篇    下一篇

盐酸米诺环素脂质体控释凝胶改善大鼠实验性牙周炎的作用评价

刘迪1,2 杨丕山2,3 胡德渝4 刘福祥5   

  1. 1.山东大学口腔医院修复科;2.山东省口腔生物医学重点实验室;3.山东大学口腔医院牙周科,济南 250012;4.口腔疾病研究国家重点实验室 华西口腔医院预防科(四川大学);5.种植科,成都 610041
  • 出版日期:2013-12-01 发布日期:2013-12-01
  • 通讯作者: 杨丕山,Tel:0531-88382058
  • 作者简介:刘迪(1978—),女,山东人,博士
  • 基金资助:

    山东大学自主创新基金资助项目(2010GN048)

Minocycline hydrochloride liposome controlled-release gel improves rat experimental periodontitis

Liu Di1,2, Yang Pishan2, 3, Hu Deyu4, Liu Fuxiang5.   

  1. 1.山东大学口腔医院修复科;2.山东省口腔生物医学重点实验室;3.山东大学口腔医院牙周科,济南 250012;4.口腔疾病研究国家重点实验室 华西口腔医院预防科(四川大学);5.种植科,成都 610041
  • Online:2013-12-01 Published:2013-12-01

摘要:

目的 在动物体内检验盐酸米诺环素脂质体控释凝胶的生物相容性及其对牙周炎动物模型的修复效果。方法 毒性实验:用质量分数2%盐酸米诺环素脂质体控释凝胶溶液给SD大鼠灌胃,观察长期应用该制剂有无全身不良反应及其反应程度。牙周炎动物模型实验:将实验性牙周炎建模成功的SD大鼠分为3 组,A组为派丽奥组,B组为实验药物组,C组为阴性对照组;A、B组每周牙周袋内给药1次,连续56 d,C组给予生理盐水;分别在给药7、14、28、56 d后测量各组动物的牙周探诊深度(PD)和牙龈指数(GI),并进行组织学观察,计算单核细胞和破骨细胞的数目。结果 盐酸米诺环素脂质体控释凝胶具有良好的生物相容性;给药14 d后,PD、GI,以及单核细胞和破骨细胞数目均较其他两组明显降低,组织学观察可见新骨及部分新纤维形成。结论 牙周袋内使用盐酸米诺环素脂质体控释凝胶可减轻牙周炎症,提示该制剂对改善牙周炎有一定的疗效,具有临床应用前景。

关键词: 脂质体, 盐酸米诺环素, 实验性牙周炎, 动物模型

Abstract:

Objective  To evaluate the therapeutic effects of 2% minocycline hydrochloride liposome controlled-release gel on the periodontitis in an established rat periodontitis model. Methods  Biocompatibility was tested by oral perfusion sample solution for long-term observation. Minocycline hydrochloride liposome controlled-release gel was utilized to treat the established rat periodontitis model. The rats were selected randomly and divided into three groups: group A (PERIO-treated group), group B (minocycline hydrochloride liposome controlled-release gel treated group), and group C (negative control group). The gingival index (GI) and probing depth (PD) were detected, and the number of mononuclear and broken bone cells were examined after 7, 14, 28, and 56 d. Results  The minocycline hydrochloride liposome controlled-release gel exhibited excellent biocompatibility based on weight measure and tissue section evaluation. The rats with periodontitis demonstrated that GI, PD, and the number of mononuclear and broken bone cells of group B decreased in 14, 28, and 56 d. Pathological observation showed that new bones and fibers were formed in group B. Conclusion  Minocycline hydrochloride liposome controlled-release gel improves rat periodontitis, thereby providing valuable evidence for clinical application.

Key words: liposomes, minocycline hydrochloride, experimental periodontitis, animal model