دورية أكاديمية
Noise rich in low frequency components, a new comorbidity for periodontal disease? An experimental study
| العنوان: | Noise rich in low frequency components, a new comorbidity for periodontal disease? An experimental study |
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| المؤلفون: | Mendes, José João, Oliveira, Pedro Miguel Antunes, Brito, José, Águas, Artur Manuel Perez Neves, Martins dos Santos, José António Mesquita |
| بيانات النشر: | Wolters Kluwer |
| سنة النشر: | 2015 |
| المجموعة: | Repositório Comum (RCAAP - Repositório Científico de Acesso Aberto de Portugal) |
| مصطلحات موضوعية: | Fibrosis, Low frequency noise, Periodontal disease, Periodontium |
| الوصف: | This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. ; "Introduction: Exposure to noise rich in low frequency components induces abnormal proliferation of extracellular matrix and collagens. The previous studies have shown alterations in the periodontium of both humans and animals. Our objective was the evaluation of collagens I, IV and V of the periodontium of Wistar rats exposed to noise rich in low frequency components. Materials and Methods: 5 groups (each with 10 animals) were exposed to continuous low frequency noise (LFN). The LFN, from previously recorded white noise, frequency filtered and amplified, was applied in growing periods of 1, 3, 5, 9 and 13 weeks, in order to characterize the alterations with exposure time. A control group of ten animals was kept in silence. These animals were used in groups of 2 as aged‑matched controls. After exposure, sections were obtained including teeth, alveolar bone and periodontium and observed after immunollabeling for collagens I, IV and V. Results: A significant increase in collagen I was observed in exposed groups (P < 0.001) (Kruskal‑Wallis test). Post‑hoc comparisons (Mann‑Whitney test with Bonferroni correction) showed an increase in collagen I in animals exposed for 3 weeks or more (P < 0.001). The same test was applied to collagen V where significant differences were found when comparing control and exposed groups (P ≤ 0.004). The t‑test for independent samples was applied to collagen type IV where no significant differences were found (P = 0.410), when comparing to the control group. Discussion: As in other organs, we can observe fibrosis and the newly formed collagen is likely to be “nonfunctional,” which could have clinical impact. Conclusion: Noise may constitute a new comorbidity for periodontal disease." |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 0972-124X 0975-1580 |
| العلاقة: | http://www.jisponline.com/text.asp?2014/18/4/503/138729Test; Baltazar Mendes JJ, Oliveira PA, Brito J, Neves Águas AP, Martins dos Santos JM. Noise rich in low frequency components, a new comorbidity for periodontal disease? An experimental study. J Indian Soc Periodontol 2014;18:503-7.; http://hdl.handle.net/10400.26/8170Test |
| DOI: | 10.4103/0972-124X.138729 |
| الإتاحة: | https://doi.org/10.4103/0972-124X.138729Test http://hdl.handle.net/10400.26/8170Test |
| حقوق: | openAccess |
| رقم الانضمام: | edsbas.E0DF27DC |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 0972124X 09751580 |
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| DOI: | 10.4103/0972-124X.138729 |