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Effects Of Triptolide On Tooth Movement And Root Resorption In Rats

PURPOSE: The aim of this study was to investigate the effects of triptolide on the tooth movement and root resorption in rats during orthodontic treatment. MATERIAL AND METHODS: A total of 48 male Wistar rats were divided into three groups of 16 each. The right maxillary first molars of rats were dr...

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Autores principales: Yang, Fan, Wang, Xu Xia, Ma, Dan, Cui, Qun, Zheng, De Hua, Liu, Xiao Can, Zhang, Jun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dove 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6883940/
https://www.ncbi.nlm.nih.gov/pubmed/31819370
http://dx.doi.org/10.2147/DDDT.S217936
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author Yang, Fan
Wang, Xu Xia
Ma, Dan
Cui, Qun
Zheng, De Hua
Liu, Xiao Can
Zhang, Jun
author_facet Yang, Fan
Wang, Xu Xia
Ma, Dan
Cui, Qun
Zheng, De Hua
Liu, Xiao Can
Zhang, Jun
author_sort Yang, Fan
collection PubMed
description PURPOSE: The aim of this study was to investigate the effects of triptolide on the tooth movement and root resorption in rats during orthodontic treatment. MATERIAL AND METHODS: A total of 48 male Wistar rats were divided into three groups of 16 each. The right maxillary first molars of rats were drawn mesially by closed coil nickel–titanium spring with a force of 50 g. The two experimental groups received intraperitoneal injections of triptolide for 14 days at a dose of 15 µg/kg/day and 30 µg/kg/day, respectively. The control group received vehicle injections. After 14 days, the rats were humanely killed. The amount of tooth movement was measured. Eight rats from each group were randomly chosen for analysis of the percentage of root resorption area by scanning electron microscopy. For the remaining eight rats in each group, the H&E staining, tartrate-resistant acid phosphatase (TRAP) staining and immunohistochemistry analysis were performed. RESULTS: The amount of tooth movement and the ratio of root resorption area were significantly decreased in the triptolide-treated rats. The number of TRAP-positive cells was significantly lower in triptolide-treated groups. Moreover, the expression of nuclear factor kappa B ligand (RANKL) was reduced. In contrast, the expression of osteoprotegerin was significantly up-regulated. In the tension side, the expressions of runt-related transcription factor 2 and osteocalcin were significantly enhanced by triptolide injection. CONCLUSION: Triptolide injection could arrest orthodontic tooth movement and reduce root resorption in rats via inhibition of osteoclastogenesis. In addition, triptolide may exert a positive effect on osteoblastogenesis.
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spelling pubmed-68839402019-12-09 Effects Of Triptolide On Tooth Movement And Root Resorption In Rats Yang, Fan Wang, Xu Xia Ma, Dan Cui, Qun Zheng, De Hua Liu, Xiao Can Zhang, Jun Drug Des Devel Ther Original Research PURPOSE: The aim of this study was to investigate the effects of triptolide on the tooth movement and root resorption in rats during orthodontic treatment. MATERIAL AND METHODS: A total of 48 male Wistar rats were divided into three groups of 16 each. The right maxillary first molars of rats were drawn mesially by closed coil nickel–titanium spring with a force of 50 g. The two experimental groups received intraperitoneal injections of triptolide for 14 days at a dose of 15 µg/kg/day and 30 µg/kg/day, respectively. The control group received vehicle injections. After 14 days, the rats were humanely killed. The amount of tooth movement was measured. Eight rats from each group were randomly chosen for analysis of the percentage of root resorption area by scanning electron microscopy. For the remaining eight rats in each group, the H&E staining, tartrate-resistant acid phosphatase (TRAP) staining and immunohistochemistry analysis were performed. RESULTS: The amount of tooth movement and the ratio of root resorption area were significantly decreased in the triptolide-treated rats. The number of TRAP-positive cells was significantly lower in triptolide-treated groups. Moreover, the expression of nuclear factor kappa B ligand (RANKL) was reduced. In contrast, the expression of osteoprotegerin was significantly up-regulated. In the tension side, the expressions of runt-related transcription factor 2 and osteocalcin were significantly enhanced by triptolide injection. CONCLUSION: Triptolide injection could arrest orthodontic tooth movement and reduce root resorption in rats via inhibition of osteoclastogenesis. In addition, triptolide may exert a positive effect on osteoblastogenesis. Dove 2019-11-25 /pmc/articles/PMC6883940/ /pubmed/31819370 http://dx.doi.org/10.2147/DDDT.S217936 Text en © 2019 Yang et al. http://creativecommons.org/licenses/by-nc/3.0/ This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms (https://www.dovepress.com/terms.php).
spellingShingle Original Research
Yang, Fan
Wang, Xu Xia
Ma, Dan
Cui, Qun
Zheng, De Hua
Liu, Xiao Can
Zhang, Jun
Effects Of Triptolide On Tooth Movement And Root Resorption In Rats
title Effects Of Triptolide On Tooth Movement And Root Resorption In Rats
title_full Effects Of Triptolide On Tooth Movement And Root Resorption In Rats
title_fullStr Effects Of Triptolide On Tooth Movement And Root Resorption In Rats
title_full_unstemmed Effects Of Triptolide On Tooth Movement And Root Resorption In Rats
title_short Effects Of Triptolide On Tooth Movement And Root Resorption In Rats
title_sort effects of triptolide on tooth movement and root resorption in rats
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6883940/
https://www.ncbi.nlm.nih.gov/pubmed/31819370
http://dx.doi.org/10.2147/DDDT.S217936
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