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

doi:10.3969/j.issn.2095-4344.2016.51.016

Abstract

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

CLC Number:

R318

Yu Yan-heng, Huang Xin-yan, Zheng Rong, Li Chao, Dong Yue, Gao Xu-guang, Wu Li-peng. Root resorption and interleukin-17 expression in a rat model of kidney deficiency uring orthodontic treatment[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(51): 7703-7709.

Figures/Tables 3

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