中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (51): 7703-7709.doi: 10.3969/j.issn.2095-4344.2016.51.016

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

肾虚及正常大鼠的正畸致牙根吸收易感性比较及组织内白细胞介素17的表达差异

余彦衡,黄昕艳,郑  嵘,李  超,董  悦,高旭广,吴立鹏   

  1. 佳木斯大学附属口腔医院正畸科,黑龙江省佳木斯市  154000
  • 收稿日期:2016-10-07 出版日期:2016-12-09 发布日期:2016-12-09
  • 通讯作者: 吴立鹏,教授,主任医师,佳木斯大学附属口腔医院正畸科,黑龙江省佳木斯市 154000
  • 作者简介:余彦衡,女,1991年生,湖北省荆州市人,佳木斯大学在读硕士,主要从事口腔正畸学研究。
  • 基金资助:

    佳木斯大学科学技术校级面上项目(S2014-005)

Root resorption and interleukin-17 expression in a rat model of kidney deficiency uring orthodontic treatment

Yu Yan-heng, Huang Xin-yan, Zheng Rong, Li Chao, Dong Yue, Gao Xu-guang, Wu Li-peng   

  1. Department of Orthodontics, Affiliated Stomatology Hospital of Jiamusi University, Jiamusi 154000, Heilongjiang Province, China
  • Received:2016-10-07 Online:2016-12-09 Published:2016-12-09
  • Contact: Wu Li-peng, Professor, Chief physician, Department of Orthodontics, Affiliated Stomatology Hospital of Jiamusi University, Jiamusi 154000, Heilongjiang Province, China
  • About author:Yu Yan-heng, Studying for master’s degree, Department of Orthodontics, Affiliated Stomatology Hospital of Jiamusi University, Jiamusi 154000, Heilongjiang Province, China
  • Supported by:

    the Scientific and Technological Project of the Jiamusi University, No. S2014-005

摘要:

文章快速阅读:

文题释义:
正畸致牙根吸收:在口腔正畸临床治疗过程中伴随发生的常见并发症,伴随牙移动而产生。正畸致牙根吸收多发生与根尖区域,表现为由外向内的吸收,故又被称之为根尖外牙根吸收,其发作特点为局部红、肿、热、痛,属于有炎症特点的炎性过程。
肾虚体质:现代多数学者认为中医中的“肾虚”主要与肾上腺、甲状腺、性腺三轴的紊乱及免疫力的下降有关。肾虚的主要表现为腰脊酸痛、胫酸膝软或足跟痛、耳鸣耳聋、发脱齿摇、尿有余沥或失禁、阳萎、早泄或月经不调。据中医中的虚证辩证肾虚又可分为多种,其中最常见的是肾阴虚和肾阳虚。
摘要
背景:
正畸致牙根外吸收的发生机制目前尚不明确,且它有较大的个体差异。肾虚体质已被证明与多种细胞因子介导的骨性疾病有直接联系,白细胞介素17为目前研究出的参与牙根外吸收的重要细胞因子之一。明确肾虚体质是否与牙根吸收相关及白细胞介素17是否参与其中,有助于正畸致牙根吸收的病因学研究。
目的:探讨正畸移动大鼠牙过程中肾虚体质及白细胞介素17与牙根吸收的关系。
方法:选择36只Wistar大鼠,随机分为2组,每组18只。肾虚组应用大鼠药物诱导法建立肾虚模型,对照组给予生理盐水。肾虚模型建立后,所有大鼠右侧上颌建立正畸加力模型,左侧上颌不加力。正畸加力3,7,14 d时全麻下分批处死大鼠,苏木精-伊红染色、免疫组化检测观察第一磨牙近中根压力侧组织形态及白细胞介素17的表达变化。
结果与结论:①组织学结果:肾虚加力组牙根压力侧吸收,牙釉质表面不同程度的破骨细胞吸收陷窝,吸收程度随加力时间延长而加重;对照加力组牙槽骨吸收、牙周膜增宽;肾虚不加力组及对照不加力组未见牙槽骨及牙根吸收;②免疫组化结果:白细胞介素17在肾虚组加力组牙根压力侧表达高于对照加力组,在肾虚不加力组的表达高于对照不加力组;③结果表明,肾虚体质下进行正畸治疗易发生牙根吸收,且肾虚体质较正常体质更易产生白细胞介素17,其造成牙根吸收的机制可能与白细胞介素17相关。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0002-9903-8804(余彦衡)

关键词: 组织构建, 组织工程, 肾虚大鼠模型, 白细胞介素17, 正畸致牙根吸收, 免疫组化

Abstract:

BACKGROUND: The mechanism underlying orthodontic-induced external root resorption is not yet clear, and it differs individually. Kidney deficiency has been proved to be related to bone diseases which mediated by different cytokines. Interleukin-17 is an important cytokine involved in external root resorption. So figuring out whether kidney deficiency and interleukin-17 are related to root resorption will be helpful for etiological research.
OBJECTIVE: To explore the relationship between kidney deficiency physique, interleukin-17 and root resorption during orthodontic treatment in rats.
METHODS: Thirty-six Wistar rats were selected and equivalently randomized into two groups, followed by modeled into kidney deficiency (kidney deficiency group) or injected with normal saline (control group), respectively. Afterwards, the right maxillary of each rat served as an orthodontic force model, and the left maxillary as a non-orthodontic force model. All rats were respectively sacrificed under general anesthesia at the 3, 7 and 14 days after given orthodontic force. Then, the mesial surface of the root of maxillary first molars and the expression level of interleukin-17 were observed through hematoxylin-eosin staining and immunohistochemical method.
RESULTS AND CONCLUSION: Histological observation showed that significantly increasing root resorption in a time-dependent manner could be observed, and there were various absorbed lacunae of osteoclasts on the enamel in the kidney deficiency orthodontic force group. The alveolar bone resorption and widened periodontal membrane appeared in the control orthodontic force group. While no remarkable root and alveolar bone resorptions were found in the other two non-orthodontic force groups. The expression level of interleukin-17 in the kidney deficiency orthodontic force group was higher than that in the control orthodontic force group; the expression level of interleukin-17 in the kidney deficiency non-orthodontic force group was higher than that in the control non-orthodontic force group. In conclusion, kidney deficiency patients are easy to develop root resorption, the mechanism of which is maybe relevant to the upregulation of interleukin-17.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Models, Animal, Interleukin-17, Orthodontics, Tissue Engineering

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