1
|
Zhao D, Li MH, Pan T, Guo J, Li J, Shi C, Wang N, Huang H, Wang C, Yang G. Preventive and Therapeutic Potential of Streptococcus cristatus CA119 in Experimental Periodontitis in Rats. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10254-y. [PMID: 38607584 DOI: 10.1007/s12602-024-10254-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2024] [Indexed: 04/13/2024]
Abstract
Periodontitis is an inflammatory condition of the oral cavity caused by a mixed infection of various bacteria, which not only severely affects the alveolar bone and connective tissues but also displays potential correlations with distal intestinal inflammation. In this study, we aimed to elucidate the therapeutic effects of Streptococcus cristatus CA119 on experimental periodontitis in rats and its impact on intestinal morphology. The results demonstrate that CA119 is capable of colonizing the oral cavity and exerting antagonistic effects on Porphyromonas gingivalis and Fusobacterium nucleatum, thus leading to a significant reduction in the oral pathogen load. Following CA119 intervention, there was a significant alleviation of weight loss in rats induced by periodontitis (P < 0.001). CA119 also regulated the expression of IL-6 (P < 0.05), IL-1β (P < 0.001), IL-18 (P < 0.001), COX-2 (P < 0.001), iNOS (P < 0.001), and MCP-1 (P < 0.01) in the gingival tissue. Additionally, CA119 reduced oxidative stress levels in rats and enhanced their antioxidant capacity. Microcomputed tomography (micro-CT) and histological analysis revealed that CA119 significantly reduced alveolar bone loss and reversed the downregulation of OPG/RANKL (P < 0.001). Furthermore, CA119 exhibited a significant protective effect against intestinal inflammation induced by periodontal disease and improved the colonic morphology in rats. In conclusion, this study demonstrates the role of CA119 as a potential oral probiotic in the prevention and treatment of experimental periodontitis, underscoring the potential of probiotics as a complementary approach to traditional periodontal care.
Collapse
Affiliation(s)
- Dongyu Zhao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Ming-Han Li
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Tianxu Pan
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Jialin Guo
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Junyi Li
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Chunwei Shi
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Nan Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Haibin Huang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Chunfeng Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China.
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China.
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China.
| | - Guilian Yang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China.
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China.
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China.
| |
Collapse
|
2
|
Li S, Zeng W, Liu G, Zang J, Yu X. Evaluation of morphological, histological, and immune-related cellular changes in ligature-induced experimental periodontitis in mice. J Dent Sci 2023; 18:1716-1722. [PMID: 37799858 PMCID: PMC10547956 DOI: 10.1016/j.jds.2023.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/02/2023] [Indexed: 01/13/2023] Open
Abstract
Background/purpose The ligature-induced periodontitis model is an effective approach to induce inflammation and bone loss similar to that of human periodontitis. Previous clinical and in vitro studies have shown the involvement of lymphocytes in periodontitis, while, the local and systemic profile of immune cells associated with periodontitis in the ligature-induced periodontitis model in mice remains unclear. Materials and methods Experimental periodontitis was constructed in mice by ligating around the maxillary second molars for 14 and 28 days, respectively. Alveolar bone loss was assessed by micro-computed tomography (micro-CT). Hematoxylin and eosin (H&E) and tartrate-resistant acid phosphatase (TRAP) staining were used to evaluate the histological changes in the periodontal tissues. B and T cells in the cervical lymph nodes, spleen, and peripheral blood were analyzed by flow cytometry. Results The 14-day ligation effectively induced significant periodontal inflammation and alveolar bone loss in C57BL/6J mice, which were progressive and maintained for a relatively long-term period until day 28. In addition, CD3+ T cells and CD19+ B cells were the dominant population in both health and disease, and the B cell population within the cervical lymph nodes (LN) increased significantly under periodontitis condition, while, no significant differences of the T and B cell population among the spleen and peripheral blood were observed. Conclusion The ligature-induced periodontitis mice model was established to perform a longitudinal assessment of changes in periodontal tissues morphologically and histologically, meanwhile, explore the local and systemic changes of the predominant immune-associated cells.
Collapse
Affiliation(s)
- Shiyi Li
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Wenmin Zeng
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Guojing Liu
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Jing Zang
- Department of Periodontology, Peking University Third Hospital, Beijing, China
| | - Xiaoqian Yu
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| |
Collapse
|
3
|
Li H, Yuan Y, Chen H, Dai H, Li J. Indoleamine 2,3-dioxygenase mediates the therapeutic effects of adipose-derived stromal/stem cells in experimental periodontitis by modulating macrophages through the kynurenine-AhR-NRF2 pathway. Mol Metab 2022; 66:101617. [PMID: 36270612 PMCID: PMC9627099 DOI: 10.1016/j.molmet.2022.101617] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/09/2022] [Accepted: 10/14/2022] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVES Mesenchymal stromal/stem cell (MSC)-based therapy has become a promising approach to periodontal tissue repair. Adipose-derived stromal/stem cells (ASCs), compared with other dental or non-dental MSCs, serve as promising candidates for MSC therapy due to non-invasive acquisition and abundant sources. This study aimed to explore the effects of ASC therapy in experimental periodontitis and the underlying mechanism. METHODS Micro-CT was performed to evaluate the alveolar bone parameters following local injection of ASCs. Immunohistochemistry and immunofluorescence were employed to detect the expression of IL-1β, osteocalcin (OCN), nuclear factor (erythroid-derived 2)-like 2 (NRF2), and surface markers of macrophage polarization. Afterward, multiple reaction monitoring (MRM)-based targeted tryptophan metabolomic analysis was used to examine the ASC metabolites. Chromatin immunoprecipitation (ChIP)-qPCR assay was performed to investigate the direct binding of aryl hydrocarbon receptor (AhR) and NRF2. RESULTS Alveolar bone loss was reduced, and the ratio of iNOS+/CD206+ macrophages was significantly decreased after ASC injection in the rat models of periodontitis. ASCs promoted NRF2 expression and activation in macrophages, while NRF2 silencing in macrophages blocked the regulation of ASCs on macrophages. Furthermore, the expression of indoleamine 2,3-dioxygenase (IDO) of ASCs in the inflammatory condition was high. The inhibitor of IDO, 1-methyltryptophan (1-MT), impaired the therapeutic effects of ASCs in experimental periodontitis and regulation of macrophage polarization. Mechanistically, kynurenine (Kyn), a metabolite of ASCs catalyzed by IDO, activated AhR and enhanced its binding to the promoter of NRF2, which stimulated M2 macrophage polarization. CONCLUSIONS These findings suggested that ASCs can alleviate ligature-induced periodontitis through modulating macrophage polarization by the IDO-dependent Kyn-AhR-NRF2 pathway, uncovering a novel mechanism and providing a scientific basis for ASC-based therapy in experimental periodontitis.
Collapse
Affiliation(s)
- Hanyue Li
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Medical University, Chongqing, 401147, China,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, China
| | - Yu Yuan
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Medical University, Chongqing, 401147, China,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, China
| | - Hongying Chen
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Medical University, Chongqing, 401147, China,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, China
| | - Hongwei Dai
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Medical University, Chongqing, 401147, China,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, China,Corresponding author. College of Stomatology, Chongqing Medical University, 426# Songshibei Road, Yubei District, Chongqing, 401147, PR China. Fax: +86 23 8886 0222.
| | - Jie Li
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China,Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Medical University, Chongqing, 401147, China,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, China,Corresponding author. College of Stomatology, Chongqing Medical University, 426# Songshibei Road, Yubei District, Chongqing, 401147, PR China. Fax: +86 23 8886 0222.
| |
Collapse
|
4
|
Jeon SJ, Lee Y, Keum BR, Choi EY, Choi IS, Kim SJ. Effect of telmisartan on experimental model of periodontitis in mice. Oral Dis 2022. [PMID: 35347812 DOI: 10.1111/odi.14200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/19/2022] [Accepted: 03/23/2022] [Indexed: 10/18/2022]
Affiliation(s)
- So Jung Jeon
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Korea
| | - Yohan Lee
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Korea
| | - Bo Ram Keum
- Department of Biological Science, College of Medical and Life Sciences, Silla University, Busan, Korea
| | - Eun-Young Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, Busan, Korea
| | - In Soon Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, Busan, Korea
| | - Sung-Jo Kim
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Korea.,Dental and Life Science Institute, Pusan National University, Yangsan, Gyeongsangnam-do, Korea.,Department of Dentistry, BHS Hanseo Hospital, Busan, Korea
| |
Collapse
|
5
|
Aminu N, Yam MF, Chan SY, Bello I, Umar NM, Nuhu T, Toh SM. The evaluation of healing effect of triclosan and flurbiprofen-loaded nanogels in experimental periodontitis in rats by morphometric analysis. Saudi Dent J 2021; 33:554-559. [PMID: 34803300 PMCID: PMC8589614 DOI: 10.1016/j.sdentj.2020.08.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 08/18/2020] [Accepted: 08/23/2020] [Indexed: 10/24/2022] Open
Abstract
Purpose To evaluate therapeutic effectiveness of antibacterial triclosan (TCS) and anti-inflammatory flurbiprofen (FLB)-loaded nanogels system in ligature-induced experimental periodontitis in rats. Methodology A total of 72 Sprague-Dawley rats were used in this study. Four groups (n = 18 each) were randomly created: Group 1 - neither subjected to experimental periodontitis nor to any treatment; Group 2 - subjected to experimental periodontitis but not treated; Group 3 - subjected to experimental periodontitis and then treated with the developed nanogels; Group 4 - subjected to experimental periodontitis and then placed on a mixture of pure TCS and FLB treatment. The experimental periodontitis was induced on the lower incisors by applying a ligature which was kept for 14 days. Treatment was done for 7 days, and sampling was done at 7, 14, and 28 day of the post-induction experimental period. Morphometric analysis was conducted to assess the clinical outcomes and healing effect. Results The morphometric findings showed that the group treated with the developed TCS and FLB-loaded nanogels recovered better and faster than a mixture of pure TCS and FLB. At 28 day of the experimental period, there was no significant difference (p > 0.05) between the baseline control group and the nanogels treated group. Conclusions The developed TCS and FLB-loaded nanogels was found to be effective in the treatment of experimental periodontitis in rats. The used experimental periodontitis model was found to be simple and easily reproducible.
Collapse
Affiliation(s)
- Nafiu Aminu
- Department of Pharmaceutics and Pharmaceutical Microbiology, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, P.M.B. 2346, Sokoto, Nigeria
| | - Mun-Fei Yam
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
| | - Siok-Yee Chan
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
| | - Idris Bello
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
| | - Nura Muhammad Umar
- Department of Pharmaceutics and Pharmaceutical Microbiology, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, P.M.B. 2346, Sokoto, Nigeria.,School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
| | - Tanko Nuhu
- Department of Pharmaceutics and Pharmaceutical Microbiology, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, P.M.B. 2346, Sokoto, Nigeria
| | - Seok-Ming Toh
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
| |
Collapse
|
6
|
Sha AM, Garib BT, Azeez SH, Gul SS. Effects of curcumin gel on osteoclastogenic bone markers in experimental periodontitis and alveolar bone loss in wistar rats. J Dent Sci 2021; 16:905-914. [PMID: 34141104 PMCID: PMC8189873 DOI: 10.1016/j.jds.2020.09.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 09/28/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND/PURPOSE Curcumin has anti-inflammatory impacts and was suggested as an inflammatory disease therapy. This study aimed to investigate the implications of curcumin gel on experimental periodontitis (EPD) and alveolar bone loss in rats. MATERIALS AND METHODS In this study, twenty-four male Wistar rats were divided equally into four groups: negative control (with no EPD); positive control (EPD induced around lower centrals without treatment); control-treated group: EPD treated with chlorhexidine; and test EPD group treated with curcumin. After 30 days, the serum concentrations of RANKL and IL-1β were measured via ELISA. All animals were sacrificed, and mandibular central incisors with the periodontium were removed. The lingual probing depth and radiographical alveolar bone loss were measured, then samples processed for routine preparation of H&E stained sections and histologically assessed for counting inflammatory cells, osteoclasts, and PDL width. RESULTS A significant decrease in the inflammatory cells infiltration, probing depth, and osteoclast numbers with the improvement of PDL associated with a reduction in RANKL and IL-1β serum concentration were seen in both EPD treated groups. CONCLUSION Curcumin is as effective as chlorhexidine in treating experimental periodontitis in rats. It was demonstrated to stop bone destruction related to periodontitis by regulating the RANKL and IL-1β markers level in the blood.
Collapse
Affiliation(s)
- Aram Mohammed Sha
- Department of Periodontics, College of Dentistry, University of Sulaimani, Sulaimani- Kurdistan Region, Iraq
| | - Balkees Taha Garib
- Department of Oral Diagnosis, College of Dentistry, University of Sulaimani, Sulaimani- Kurdistan Region, Iraq
| | - Shokhan Hamaali Azeez
- Department of Dental Nursing, Sulaimani Technical Institute, Sulaimani Polytechnic University, Sulaimani- Kurdistan Region, Iraq
| | - Sarhang Sarwat Gul
- Department of Periodontics, College of Dentistry, University of Sulaimani, Sulaimani- Kurdistan Region, Iraq
| |
Collapse
|
7
|
Otan Özden F, Lütfioğlu M, Demir E, Bilgici B. Antioxidant effect of caffeic acid phenethyl ester in experimentally induced periodontitis. Clin Oral Investig 2021; 25:4959-4966. [PMID: 33770282 DOI: 10.1007/s00784-021-03805-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/20/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVES The aim of the present study was to evaluate the antioxidant effect of systemically administered caffeic acid phenethyl ester (CAPE) in periodontitis. MATERIALS AND METHODS Forty rats were randomly divided into four groups: control, lipopolysaccharide-induced experimental periodontitis (LPS), CAPE 5: LPS+5 μmol/kg/day CAPE, and CAPE 10: LPS+10 μmol/kg/day CAPE. Following lipopolysaccharide-induced experimental periodontitis, CAPE was administered intraperitoneally for 28 days. Gingival and serumal total antioxidant status (TAS) and total oxidant status (TOS) were analyzed by enzyme-linked immunosorbent assay (ELISA). RESULTS Gingival tissue TAS was significantly higher with CAPE application compared with the LPS group and was highest in the CAPE 10 group (p<0.05). Gingival tissue TOS was highest in the LPS group, and both of the CAPE dosages decreased the gingival tissue TOS, with the highest decrease in the CAPE 10 group (p<0.05). The differences were not significant for serumal TAS or TOS levels (p>0.05). CONCLUSIONS The effect of CAPE on increased TAS and decreased TOS levels in inflamed gingival tissue indicates the antioxidant therapeutic potential of CAPE in periodontitis. CLINICAL RELEVANCE Within the limitations of this study, CAPE may be suggested as an effective host modulator agent for reducing oxidative stress in gingival tissue and might be considered as an adjunctive therapy in periodontitis.
Collapse
Affiliation(s)
- Feyza Otan Özden
- Department of Periodontology, School of Dentistry, Ondokuz Mayıs University, Kurupelit, 55139, Samsun, Turkey.
| | - Müge Lütfioğlu
- Department of Periodontology, School of Dentistry, Ondokuz Mayıs University, Kurupelit, 55139, Samsun, Turkey
| | - Esra Demir
- Department of Periodontology, School of Dentistry, Biruni University, İstanbul, Turkey
| | - Birşen Bilgici
- Department of Biochemistry, School of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| |
Collapse
|
8
|
Ali KM, Saleh Z, Jalal J. Effect of local propolis irrigation in experimental periodontitis in rats on inflammatory markers (IL-1β and TNF-α) and oxidative stress. Indian J Dent Res 2021; 31:893-898. [PMID: 33753660 DOI: 10.4103/ijdr.ijdr_909_19] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Aims The present study aimed to investigate the efficacy of local use of propolis (PRO) as a monotherapy or adjunctive therapy to scaling and root planning (SRP) in the treatment of ligature-induced periodontitis (LIP) in rats by evaluating inflammatory markers and oxidative stress. Settings and Design The present study was carried out at Hawler Medical University, College of Dentistry, and the animals used in the study were rats that were housed in an animal facility at the College of Medicine. The experimental part of the study was carried between December 2016 and August 2017. Subjects and Methods In total, 125 rats were equally divided into 5 groups of 25 animals: the control group (C) with no experimental periodontitis or treatment (gp1), LIP treated by local irrigation with a vehicle (dimethyl sulfoxide + physiological saline solution) group (gp2); LIP treated by SRP with vehicle irrigation group (gp3); LIP treated by local irrigation with 10% PRO extract group (gp4); and LIP treated by SRP with 10% PRO extract irrigation group (gp5). Experimental periodontitis was induced by placing a silk ligature around the cervix of the mandibular incisor for 4 weeks. After removal of the ligature, SRP was performed in gp3 and gp5. Five rats from each group were euthanized on days 0, 3, 7, 14, and 21 after local treatment. Intracardiac blood samples were obtained for analysis of the inflammatory cytokines interleukin-1 beta (IL-1β) and tumor necrosis factor alpha (TNF-α) and oxidative stress, which were represented by the expression of serum malondialdehyde (MDA). Statistical Analysis Used Data were analyzed statistically by analysis of variance followed by Tukey's test (P < 0.05). Results Gp5 demonstrated significantly lower IL-1β, TNF-α, and MDA serum levels than the other treatment groups at all experimental time points (P < 0.05). No significant differences were found when PRO was used as a monotherapy (P > 0.05). Conclusions Local use of a PRO extract was effective as an adjunctive treatment with SRP in a rat model of experimental periodontitis via anti-inflammatory and antioxidative activities.
Collapse
Affiliation(s)
- Khadeeja M Ali
- Department of Periodontology, College of Dentistry, Hawler Medical University, Erbil, Iraq
| | - Ziwar Saleh
- Department of Periodontology, College of Dentistry, Hawler Medical University, Erbil, Iraq
| | - Jalal Jalal
- Department of Pathology, College of Medicine, Hawler Medical University, Erbil, Iraq
| |
Collapse
|
9
|
Shalehin N, Hosoya A, Takebe H, Hasan MR, Irie K. Boric acid inhibits alveolar bone loss in rat experimental periodontitis through diminished bone resorption and enhanced osteoblast formation. J Dent Sci 2020; 15:437-44. [PMID: 33505614 DOI: 10.1016/j.jds.2019.09.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/13/2019] [Indexed: 11/21/2022] Open
Abstract
Background/purpose Inhibition of bone resorption is essential for periodontal treatment. Recently, it has been suggested that boric acid suppresses periodontitis, but the mechanism of this inhibition is still not well understood. Therefore, to analyze the cellular response to boric acid administration, we histologically evaluated alveolar bone in experimental periodontitis of rats administered boric acid. Materials and methods 5-0 silk ligatures were placed around the cervix of the second maxillary molars of 4 week-old rats treated with or without boric acid. Five and 14 days after ligature placement, the periodontal tissues between first and second molars were investigated histologically and immunohistochemically using antibodies to CD68, cathepsin K, and α-smooth muscle actin (SMA). Results Five days after the beginning of the experiment, many CD68-positive cells appeared in the periodontal tissues with ligature placement without boric acid administration. Also, the number of cathepsin K-positive osteoclasts had increased on the surface of alveolar bone. However, boric acid administration prevented severe bone resorption and reduced the number of cells positive for CD68 and cathepsin K. At day 14 post treatment, cells positive for α-SMA were seen in the periodontal tissues after boric acid administration, whereas no such cells were found around the alveolar bone without the administration of boric acid. Conclusion Boric acid inhibited the inflammation of ligature-induced periodontitis. This agent might reduce bone resorption by inhibiting osteoclastogenesis and also could accelerate osteoblastogenesis.
Collapse
|
10
|
Wang Y, Hu Y, Pan K, Li H, Shang S, Wang Y, Tang G, Han X. In-vivo imaging revealed antigen-directed gingival B10 infiltration in experimental periodontitis. Biochim Biophys Acta Mol Basis Dis 2020; 1867:165991. [PMID: 33080346 DOI: 10.1016/j.bbadis.2020.165991] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 09/29/2020] [Accepted: 10/14/2020] [Indexed: 12/15/2022]
Abstract
Our previous study demonstrated that IL-10 secreting B (B10) cells alleviate inflammation and bone loss in experimental periodontitis. The purpose of this study is to determine whether antigen-specificity is required for the local infiltration of B10 cells. Experimental periodontitis was induced in the recipient mice by placement of silk ligature with or without the presence of live Porphyromonas gingivalis (P. gingivalis). Donor mice were pre-immunized by intraperitoneal (IP) injection of formalin-fixed P. gingivalis, or PBS as non-immunized control. Spleen B cells were purified and treated with LPS and CpG for 48 h to expand the B10 population in vitro. Fluorescence-labelled B10 cells were transferred into the recipient mice by tail vein injection and were tracked on day 0, 3, 5 and 10 using IVIS Spectrum in vivo imaging system. The number of B10 cells and P. gingivalis-binding B cells were significantly increased after in vitro treatment of LPS and CpG. On day 5, the fluorescence intensity in gingival tissues was the highest in mice transferred with B10 cells from pre-immunized donor mice. Gingival expression of IL-6, TNF-α, RANKL/OPG ratio and periodontal bone loss in recipient mice were significantly reduced, and the expression of IL-10 and the number of CD19+ B cells were significantly increased after pre-immunized B10 cell transfer in the presence of antigen, compared to those with non-immunized B10 cell transfer or no antigen presence. This study suggests that antigen specificity dictate the local infiltration of B10 cells into periodontal tissue and these antigen-specific B10 cells promote anti-inflammatory responses.
Collapse
Affiliation(s)
- Yufeng Wang
- Department of Oral Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai 200011, China; Department of Immunology and Infectious Diseases, The Forsyth Institute, Harvard School of Dental Medicine Affiliate, Cambridge, MA 02142, United States
| | - Yang Hu
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Harvard School of Dental Medicine Affiliate, Cambridge, MA 02142, United States; Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, United States
| | - Keqing Pan
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Harvard School of Dental Medicine Affiliate, Cambridge, MA 02142, United States; Department of Stomatology, the affiliated hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Hao Li
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Harvard School of Dental Medicine Affiliate, Cambridge, MA 02142, United States; Department of Prosthodontics, the Affiliated Hospital of Stomatology, Guangxi Medical University, Nanning 530021, China
| | - Shu Shang
- Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Yuhua Wang
- Department of Oral Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai 200011, China
| | - Guoyao Tang
- Department of Oral Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai 200011, China
| | - Xiaozhe Han
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Harvard School of Dental Medicine Affiliate, Cambridge, MA 02142, United States; Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, United States.
| |
Collapse
|
11
|
Bas N, Kayar NA, Baba ZF, Avunduk MC, Haliloğlu S, Alptekin NÖ. Systemic treatment with alpha-tocopherol and/or sodium selenite decreases the progression of experimental periodontitis. Clin Oral Investig 2020; 25:2677-2688. [PMID: 32986166 DOI: 10.1007/s00784-020-03579-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 09/10/2020] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To investigate the effects of sodium selenite (Se) and/or α-tocopherol (αT) applications on the alveolar bone loss (ABL), the number of gingival collagen fibers, inducible nitric oxide synthase (iNOS)+ and CD95+ cell numbers, and serum cytokine concentrations in experimental periodontitis in rats. MATERIALS AND METHODS Forty Sprague Dawley rats were divided into four groups of ten as follows: group A: Se group, group B: αT group, group C: Se and αT combined group, and group D: control group (intraperitoneal (IP) saline injection applied). Using the image analysis method in the connective tissue under the connective epithelium, the numbers of iNOS, CD95 positive cells, and collagen fibers were counted. ELISA kits were used to test the concentrations of serum interleukin (IL)-1β, IL-6, and IL-4. RESULTS The combination of Se and αT (group C) suppressed ABL compared with the control group (group D) (P < 0.05). In group A (Se), the number of iNOS+ cells was smaller than in group D (P < 0.05). CONCLUSION Se has been concluded to inhibit inflammation of the gum due to iNOS. Se and αT can have a remarkable important role in preventing alveolar bone loss, and particularly in combination. CLINICAL RELEVANCE Se and/or αT application may be useful in preventing the destruction of periodontal tissue and treatment of periodontal disease.
Collapse
Affiliation(s)
- Nurgül Bas
- Kayseri Nimet Bayraktar Oral and Dental Health Center, Republic of Turkey Ministry of Health, Kayseri, Turkey
| | - Nezahat Arzu Kayar
- Department of Periodontology, Faculty of Dentistry, Akdeniz University, 07058, Antalya, Turkey.
| | - Z Füsun Baba
- Patology Laboratory, Acıbadem International Hospital, İstanbul, Turkey
| | - Mustafa Cihat Avunduk
- Department of Pathology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Seyfullah Haliloğlu
- Department of Biochemistry, Faculty of Veterinary, Selcuk University, Konya, Turkey
| | - Nilgün Özlem Alptekin
- Department of Periodontology, Faculty of Dentistry, Başkent University, Ankara, Turkey
| |
Collapse
|
12
|
Aytekin Z, Arabacı T, Toraman A, Bayır Y, Albayrak M, Üstün K. Immune modulatory and antioxidant effects of locally administrated vitamin C in experimental periodontitis in rats. Acta Odontol Scand 2020; 78:425-432. [PMID: 32157939 DOI: 10.1080/00016357.2020.1734656] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background: Vitamin C is an important water-soluble vitamin with antioxidant and immune-modulatory actions. The aim of this study was to investigate the effects of locally applied vitamin C on alveolar bone resorption in rats with experimental periodontitis.Methods: Twenty-one male Sprague-Dawley rats divided into three groups with seven animals in each group: (1) control, (2) experimental periodontitis and 3) experimental periodontitis-local vitamin C treatment group. After ligature was removed, 50 μL vitamin C was locally administered into the subperiosteum of the buccal gingiva of periodontitis vitamin C (PvitC) group rats for three times in intervals of 2 days. At the end of the study, the animals were scarified, and serum and gingival samples were collected for analysis of serum IL-1β, oxidative stress index (OSI), CTX and malondialdehyde (MDA) levels and gingival MMP-8 immunostaining. Alveolar bone loss and attachment loss were determined based on measurements on histological sections obtained from rat mandibles.Results: Serum MDA and OSI levels which are related to the oxidative stress were significantly lower in the PvitC group as compared with those in the P group (p < .05). Serum CTX levels which are related to the bone resorption were significantly lower in the PvitC group as compared with those in the P group (p < .05). The numeric density of MMP-8-positive cells was significantly lower in the PvitC group compared to P group (p < .05). Alveolar bone loss and attachment loss were significantly lower in the PvitC group compared to P group (p < .05)Conclusions: The local vitamin C administration provided protection against inflammation-induced alveolar bone resorption by decreasing oxidative stress and inflammation-induced tissue breakdown vitamin C may be a therapeutic agent that can be used in periodontitis treatment.
Collapse
Affiliation(s)
- Zeliha Aytekin
- Department of Periodontology, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | - Taner Arabacı
- Department of Periodontology, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
| | - Ayşe Toraman
- Department of Periodontology, Faculty of Dentistry, Sağlık Bilimleri University, İstanbul, Turkey
| | - Yasin Bayır
- Department of Biochemistry, Faculty of Pharmacy, Atatürk University, Erzurum, Turkey
| | - Mevlüt Albayrak
- Department of Medical Laboratory Techniques, Health Services Vocational Training School, Atatürk University, Erzurum, Turkey
| | - Kemal Üstün
- Department of Periodontology, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| |
Collapse
|
13
|
Lektemur Alpan A, Kızıldağ A, Özdede M, Karakan NC, Özmen Ö. The effects of taxifolin on alveolar bone in experimental periodontitis in rats. Arch Oral Biol 2020; 117:104823. [PMID: 32593876 DOI: 10.1016/j.archoralbio.2020.104823] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE This study aimed to evaluate the effect of taxifolin, a powerful antioxidant, on the progression of periodontitis by immunohistochemical and cone-beam computed tomography (CBCT) examination. DESIGN This study was performed with 32 rats in four experimental groups: a non-ligated group (Control, n = 8), periodontitis group (Perio, n = 8), periodontitis with 1 mg/kg/day taxifolin group (Taxi-1, n = 8), and periodontitis with 10 mg/kg/day taxifolin group (Taxi-10, n = 8). A ligature-induced experimental periodontitis design was used. All rats were sacrificed at 30 days. Alveolar bone loss was determined by CBCT. Hematoxylin-eosin stained slides were examined. The expression levels of bone morphogenetic protein 2 (BMP-2), osteocalcin (OCN), alkaline phosphatase (ALP), collagen type I (Col 1), Bcl-2, Bax, and receptor activator of NF-κB ligand (RANKL) were determined immunohistochemically. RESULTS Both doses of taxifolin showed a decrease in alveolar bone loss. The inflammatory reaction was higher in the Perio group and lower in the taxifolin groups. BMP-2, OCN, ALP, and Col 1 expression were dose-dependently elevated in the taxifolin groups. RANKL immunoexpression decreased with both doses of taxifolin. Bcl-2 expression increased and Bax expression decreased in the taxifolin groups. CONCLUSION Taxifolin successfully reduced apoptosis and improved bone formation in alveolar bone in this experimental periodontitis model.
Collapse
|
14
|
Yildirim TT, Ozan G, Dundar S, Bozoglan A, Karaman T, Dildes N, Kaya CA, Kaya N, Erdem E. The effects of morus nigra on the alveolar bone loss in experimentally-induced periodontitis. Eur Oral Res 2019; 53:99-105. [PMID: 31579889 PMCID: PMC6761488 DOI: 10.26650/eor.20190021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/22/2018] [Accepted: 01/25/2019] [Indexed: 12/28/2022] Open
Abstract
Purpose The aim of this study is to evalute the anti-inflammatory effects of morus migra on experimentally-induced periodontitis in rats. Materials and methods Twenty-four Wistar-albino rats were randomly divided into three groups: control group (C, n=8), experimental periodontitis (PER, n=8), experimental periodontitis and treated with Morus nigra (MN+PER, n=8) (50 mg/kg per day for 21 days). After 21 days, the rats were sacrificed, and alveolar bones were evaluated histopathologically and histometrically analyzed to obtain level of alveolar bone loss. The detection of RANKL and OPG were immunohistochemically performed. Serum and tissue levels of MMP-8 and MMP-13 were also analyzed. Results Morus nigra treatment decreased tissue MMP-8 and MMP-13 levels and there were significant differences in the case of tissue levels of MMP-8 and MMP-13 between groups PER and MN+PER (p=0.035, p=0.041). There were no significant differences among all the groups serum levels of MMP-8 and MMP-13 (p=0.067, p=0.082). In the histometric evaluation, alveolar bone loss was greater in the PER group compared to C and MN groups (p=0.035). Immuno-histochemical staining of RANKL activities were found significantly lower (p=0.037) and OPG activities were found significantly higher in MN+PER group when compared to PER group (p=0.021). Conclusion The present study reveals that systemic administration of Morus nigra significantly inhibited the regional alveolar bone resorption and contributes to periodontal healing in the rat experimental-periodontitis models.
Collapse
Affiliation(s)
- Tuba Talo Yildirim
- Department of Periodontology, Faculty of Dentistry, Firat University,Elazig, Turkey
| | - Gonca Ozan
- Department of Biochemistry, Faculty of Veterinary Medicine, Firat University,Elazig, Turkey
| | - Serkan Dundar
- Department of Periodontology, Faculty of Dentistry, Firat University,Elazig, Turkey
| | - Alihan Bozoglan
- Department of Periodontology, Faculty of Dentistry, Firat University,Elazig, Turkey
| | - Tahir Karaman
- Department of Prosthodontics, Faculty of Dentistry,Firat University,Elazig, Turkey
| | - Neval Dildes
- Department of Orthodontics, Faculty of Dentistry, Firat University,Elazig, Turkey
| | - Can Ayhan Kaya
- Diyarbakır Vocational High School, Dicle University,Diyarbakir,Diyarbakir, Turkey
| | - Nalan Kaya
- Department of Histology and Embriology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Elif Erdem
- Department of Histology and Embriology, Faculty of Medicine, Firat University, Elazig, Turkey
| |
Collapse
|
15
|
Chen Q, Cai J, Li X, Song A, Guo H, Sun Q, Yang C, Yang P. Progranulin Promotes Regeneration of Inflammatory Periodontal Bone Defect in Rats via Anti-inflammation, Osteoclastogenic Inhibition, and Osteogenic Promotion. Inflammation 2019; 42:221-234. [PMID: 30187338 DOI: 10.1007/s10753-018-0886-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Progranulin (PGRN) has been proved to play a crucial role in anti-inflammation and osteogenesis promotion; thus, it was hypothesized that PGRN could promote bone regeneration in periodontal disease. In this experiment, the periodontal bone defects were established in periodontitis rats; recombinant human progranulin (rhPGRN), tumor necrosis factor alpha inhibitor (anti-TNF-α), or phosphate buffer saline (PBS)-loaded collagen membrane scaffolds were implanted within defects and the rats were sacrificed at scheduled time points. Volume of new bone was assessed by radiological and histomorphometric analyses. Expression of osteogenesis-related markers and tumor necrosis factor-α (TNF-α) was evaluated using immunohistochemistry. Tartrate-resistant acid phosphatase (TRAP) staining was also performed to determine the number of osteoclasts. Immunofluorescence (IF) staining was performed to explore the interaction between rhPGRN and tumor necrosis factor receptors (TNFRs). The results showed that the rhPGRN group had significantly superior quantity and quality of newly formed bone, higher expression of alkaline phosphatase (ALP), runt-related transcription factor 2 (Runx2), and TNFR2 compared with the PBS group and the anti-TNF-α group. Similarly to the anti-TNF-α group, the rhPGRN group also exhibited the significant inhibitory effect on the expression of TNF-α and the number of TRAP-positive cells compared with the PBS group. Hence, our experiment suggests that PGRN promotes regeneration of inflammatory periodontal bone defect in rats via anti-inflammation, osteoclastogenic inhibition, and osteogenic promotion. Local administration of PGRN may provide a new therapeutic strategy for periodontal bone regeneration.
Collapse
Affiliation(s)
- Qian Chen
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong University, Jinan, Shandong, China.,Department of Periodontology, School of Dentistry, Shandong University, Jinan, Shandong, China
| | - Jun Cai
- Department of Comprehensive Dentistry, Jinan Stomatological Hospital, Jinan, Shandong, China
| | - Xiao Li
- Department of Periodontology, Jinan Stomatological Hospital, Jinan, Shandong, China
| | - Aimei Song
- Department of Periodontology, School of Dentistry, Shandong University, Jinan, Shandong, China
| | - Hongmei Guo
- Department of Periodontology, School of Dentistry, Shandong University, Jinan, Shandong, China
| | - Qinfeng Sun
- Department of Periodontology, School of Dentistry, Shandong University, Jinan, Shandong, China
| | - Chengzhe Yang
- Department of Oral and Maxillofacial Surgery, Qilu Hospital, and Institute of Stomatology, Shandong University, Jinan, Shandong, China.
| | - Pishan Yang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong University, Jinan, Shandong, China. .,Department of Periodontology, School of Dentistry, Shandong University, Jinan, Shandong, China. .,Department of Periodontology, School of Stomatology, Shandong University, Jinan, Shandong, China.
| |
Collapse
|
16
|
Kurt S, Gürkan ÇG, Keleş Tezal GÇ, Çiftçi A, Gürgör PN, Güler Ş, Çetinkaya BÖ. Histopathological and biochemical evaluation of the effect of Paeoniflorin on the periodontium during and after periodontitis formation in rats. Arch Oral Biol 2019; 102:135-140. [PMID: 31005686 DOI: 10.1016/j.archoralbio.2019.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 04/10/2019] [Accepted: 04/11/2019] [Indexed: 10/27/2022]
Abstract
OBJECTIVES Appraise the effect of systemic Paeoniflorin (Pae) application on the periodontium during and after induction of experimental periodontitis in the presence of ligature and after its removal. DESIGN Seventy male Wistar rats were separated into seven equal groups. The first group was reserved as healthy control group (Group 1: no periodontitis, no medication) and experimental periodontitis was induced with ligature in the remaining rats. In experimental periodontitis groups, Pae or saline was administered systemically in three differet periods; during the experimental periodontitis induction (period 1), after experimental periodontitis induction which ligature removed (period 2) or ligature kept in position (period 3). Only, one of the groups acted as the control periodontitis group and received no treatment. Experimental periodontitis groups were as follows; Group 2: medication in period 1, Group 3: periodontitis and no medication, Group 4: medication in period 2, Group 5: saline application in period 2, Group 6: medication in period 3, Group 7: saline application in period 3. Matrix metalloproteinases-9 (MMP-9) levels and interleukin-10 (IL-10) levels were detected biochemically and histomorphometric analyses were performed. These analyses included measurements of the area of alveolar bone, the level of alveolar bone, and attachment loss. RESULTS Area of alveolar bone and IL-10 levels were higher in the Pae-administered groups; level of alveolar bone, attachment loss, and MMP-9 levels were correspondingly lower (P < 0.05). The beneficial effects at histomorphometrical and biochemical levels of Pae were the strongest in the rats that were administered Pae after the removal of ligature. CONCLUSIONS Systemically administered Pae had a positive effect on the healing of periodontal tissues. Pae can be used as a new therapeutic agent for periodontal diseases, but microbiology-based studies and more extensive biochemistry-based experimental and clinical studies are needed to address this possibility.
Collapse
Affiliation(s)
- Sevda Kurt
- Department of Periodontology, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize,Turkey.
| | | | - Gonca Çayır Keleş Tezal
- Department of Periodontology, Faculty of Dentistry, İstanbul Okan University, İstanbul, Turkey
| | - Alper Çiftçi
- Department of Microbiology, Faculty of Veterinary Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Pınar Naile Gürgör
- Department of Histology and Embriology, Faculty of Medicine, Ordu University, Ordu, Turkey
| | - Şevki Güler
- Department of Periodontology, Faculty of Dentistry, Abant İzzet Baysal University, Bolu, Turkey
| | - Burcu Özkan Çetinkaya
- Department of Periodontology, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey
| |
Collapse
|
17
|
de Almeida JM, Marques BM, Novaes VCN, de Oliveira FLP, Matheus HR, Fiorin LG, Ervolino E. Influence of adjuvant therapy with green tea extract in the treatment of experimental periodontitis. Arch Oral Biol 2019; 102:65-73. [PMID: 30974379 DOI: 10.1016/j.archoralbio.2019.03.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 03/28/2019] [Accepted: 03/29/2019] [Indexed: 11/29/2022]
Abstract
AIM This study evaluated the effects of topical green tea extract solution (GTE) as adjuvant therapy to mechanical debridement for the treatment of experimental periodontitis (EP). MATERIAL AND METHODS We used 120 male rats (Rattus norvegicus albinus - Wistar), divided into the following four groups: NEP (sham) (n = 30): no experimental periodontitis (NEP), only simulation of EP by installation and removal of a ligature; EP (n = 30): EP induction by ligature; SRP (n = 30): EP, scaling and root planing (SRP), and irrigation with physiological saline solution; SRP/GT (n = 30): EP, SRP, and irrigation with GTE. Histologic analysis and immunohistochemistry were performed for detection of interleukin (IL)1ß, tumor necrosis factor-alpha (TNF-α), IL-10, and anti-tartrate resistant acid phosphatase (TRAP) in the furcation area. The percentage of bone in the furcation (PBF) was considered the primary variable and evaluated at 14, 22, and 37 days. The data from the histological analysis and the IL- 1B, TNF- A, and IL-10 were submitted to a Kruskal-Wallis variance test and Dunn's posttest (p ≤ 0.05). The histometric data and TRAP were submitted to analysis of variance (ANOVA) and Tukey's posttest (p ≤ 0.05). RESULTS The SRP/GT group showed lower inflammatory process, lower immunolabeling pattern of IL-1ß and TNF-α, and greater immunolabeling pattern of IL-10 compared with the EP and SRP groups at 22 days. Fewer TRAP-positive multinucleated osteoclasts were observed in all periods in the SRP/GT group (5.22 ± 0.65; 7.33 ± 0.80; 8.55 ± 1.15) compared with the SRP group (30.67 ± 8.55; 13.22 ± 0.77; 13.87 ± 0.77). Higher PBF was observed in all periods in the SRP/GT group (74.65 ± 7.14; 76.61 ± 5.36; 79.24 ± 3.75) compared with the SRP group (61.60 ± 9.48; 54.84 ± 9.06; 53.25 ± 9.66). CONCLUSION GTE adjuvant to SRP reduced inflammation, osteoclastic activity, and alveolar bone loss in EP.
Collapse
Affiliation(s)
- Juliano Milanezi de Almeida
- São Paulo State University (UNESP), School of Dentistry, Department of Surgery and Integrated Clinic - Periodontics Division, Araçatuba, SP, Brazil.
| | - Bianca Mayara Marques
- São Paulo State University (UNESP), School of Dentistry, Department of Surgery and Integrated Clinic - Periodontics Division, Araçatuba, SP, Brazil
| | - Vivian Cristina Noronha Novaes
- São Paulo State University (UNESP), School of Dentistry, Department of Surgery and Integrated Clinic - Periodontics Division, Araçatuba, SP, Brazil
| | - Fred Lucas Pinto de Oliveira
- São Paulo State University (UNESP), School of Dentistry, Department of Surgery and Integrated Clinic - Periodontics Division, Araçatuba, SP, Brazil
| | - Henrique Rinaldi Matheus
- São Paulo State University (UNESP), School of Dentistry, Department of Surgery and Integrated Clinic - Periodontics Division, Araçatuba, SP, Brazil
| | - Luiz Guilherme Fiorin
- São Paulo State University (UNESP), School of Dentistry, Department of Surgery and Integrated Clinic - Periodontics Division, Araçatuba, SP, Brazil
| | - Edilson Ervolino
- São Paulo State University (UNESP), School of Dentistry, Department of Basic Science - Histology Division, Araçatuba, SP, Brazil
| |
Collapse
|
18
|
Park HS, Lee YS, Choi EY, Choi JI, Choi IS, Kim SJ. Subantibiotic dose of azithromycin attenuates alveolar bone destruction and improves trabecular microarchitectures in a rat model of experimental periodontitis: A study using micro-computed tomography. Int Immunopharmacol 2017; 47:212-217. [PMID: 28432937 DOI: 10.1016/j.intimp.2017.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/23/2017] [Accepted: 04/10/2017] [Indexed: 10/19/2022]
Abstract
Azithromycin, a macrolide antibiotic, has anti-inflammatory and immunomodulatory activities apart from its antibacterial properties. In this study, we examined the efficacy of subantibiotic dose of azithromycin on ligature-induced periodontitis in rats using micro-computed tomography (micro-CT) imaging and bone parameter analysis. Male Sprague-Dawley rats were allocated to the following four groups: non-ligation (NL) group; ligation-only (L) group; ligation-plus-subantibiotic dose azithromycin (SA) group; and 4) ligation-plus-antibiotic dose azithromycin (AA) group. The rats from Groups L, SA and AA were subjected to periodontitis by placing a ligature around lower right first molar. Immediately after ligation, the rats in SA and AA groups received daily intraperitoneal injections of azithromycin at a dosage of 3.5 or 10mg/kg body weight, respectively. The ligatures were maintained for 2weeks at which time the rats had their mandibles hemisected for micro-CT analysis. Subantibiotic dose of azithromycin strongly suppressed reductions in alveolar bone height and bone volume fraction caused by experimental periodontitis. When subantibiotic dosage of azithromycin was administered to rats, ligature-induced alterations in microarchitectural parameters of trabecular bone were significantly reversed. Rats treated with subantibiotic dose of azithromycin presented no significant difference compared to rats with antibiotic dosage in all parameters. While further studies are necessary, subantibiotic dose of azithromycin could be utilized as a host modulator for the treatment of periodontitis.
Collapse
Affiliation(s)
- Hye-Shin Park
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea
| | - Yong Sun Lee
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea
| | - Eun-Young Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, Busan, Republic of Korea
| | - Jeom-Il Choi
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea; Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Gyeongsangnam-do, Republic of Korea
| | - In Soon Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, Busan, Republic of Korea
| | - Sung-Jo Kim
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea; Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Gyeongsangnam-do, Republic of Korea; Institute of Translational Dental Sciences, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea.
| |
Collapse
|
19
|
Nakata T, Umeda M, Masuzaki H, Sawai H. The expression of 11β-hydroxysteroid dehydrogenase type 1 is increased in experimental periodontitis in rats. BMC Oral Health 2016; 16:108. [PMID: 27716163 PMCID: PMC5048409 DOI: 10.1186/s12903-016-0303-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 09/22/2016] [Indexed: 11/13/2022] Open
Abstract
Background The involvement of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1), which converts inactive glucocorticoids into active glucocorticoids intracellularly, in metabolic diseases and chronic inflammatory diseases has been elucidated. We recently reported that an increase in 11β-HSD1 expression was associated with chronic periodontitis in humans irrespective of obesity. To further clarify the role of 11β-HSD1 in chronic periodontitis, the expression of 11β-HSD1 was investigated in experimental periodontitis model in rats. Methods Experimental periodontitis was induced by silk ligature of left maxillary second molars of 7-week-old male Wistar rats, and periodontal tissues were collected at day 3. The expression of 11β-HSD1, 11β-HSD2, and TNFα mRNA was examined using real time reverse transcription-polymerase chain reaction. The expression of TNFα was used as an indicator of inflammation. Thus, the rats in which the levels of TNFα mRNA were increased in the ligature-induced periodontitis compared with the control were analysed. Results The findings demonstrated that the expression of 11β-HSD1 mRNA was significantly increased in experimental periodontitis compared with the control. The increase in the levels of 11β-HSD1 mRNA in the ligature-induced periodontitis compared with the control was positively correlated with that of TNFα mRNA. On the other hand, the expression of 11β-HSD2 mRNA, which inactivates glucocorticoids, was slightly decreased in experimental periodontitis. Therefore, the ratio of 11β-HSD1 versus 11β-HSD2 mRNA was significantly higher in experimental periodontitis than in the control. Conclusions These results suggest that the increased expression of 11β-HSD1, which would result in the increased levels of intracellular glucocorticoids, may play a role in the pathophysiology of experimental periodontitis.
Collapse
Affiliation(s)
- Takaya Nakata
- Department of Periodontology, Graduate School of Dentistry, Osaka Dental University, Hirakata, Osaka, Japan
| | - Makoto Umeda
- Department of Periodontology, Osaka Dental University, Hirakata, Osaka, Japan
| | - Hiroaki Masuzaki
- Division of Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology, Graduate School of Internal Medicine, University of the Ryukyus, Nakagami-gun, Okinawa, Japan
| | - Hirofumi Sawai
- Department of Internal Medicine, Osaka Dental University, Hirakata, Osaka, Japan.
| |
Collapse
|
20
|
Li J, Yang H, Meng S, Zhou J, Ding Y. Metabonomic profiles reveal dose-dependent effects of Bu-Shen-Gu-Chi-Wan on the serum in experimental periodontitis of rat model. J Ethnopharmacol 2016; 193:248-254. [PMID: 27475973 DOI: 10.1016/j.jep.2016.07.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 06/28/2016] [Accepted: 07/16/2016] [Indexed: 02/05/2023]
Abstract
ETHNO-PHARMACOLOGICAL RELEVANCE Bu-Shen-Gu-Chi-Wan is a Chinese patent medicine for the treatment of chronic periodontitis. It has an anti-inflammatory function in experimental periodontitis and can improve alveolar bone remodeling. AIM OF THE STUDY This study aims to explore the effects of Bu-Shen-Gu-Chi-Wan on serum metabolism in a rat model of periodontitis using 1H nuclear magnetic resonance (1H NMR) based metabonomics. MATERIALS AND METHODS The model of experimental periodontitis in a rat was established by steel wire ligation, plus a high glucose diet and Porphyromonas gingivalis inoculation. When the models had been established, 6-week-old Sprague-Dawley female rats (n=31) were divided into 5 groups: high dose group (Group H), medium dose group (Group M), low dose group (Group L), periodontitis group (Group P) and healthy control group (Group N). Rats in Group H, M and L were given the Bu-Shen-Gu-Chi-Wan solution (0.8, 2 and 4g/kg of body weight) daily for 60 days. Rats in Group P and N were administered normal saline (10ml/kg of body weight) in the same period. All rats were sacrificed at the end of the study and serum samples were collected. The metabolites in the serum were analyzed using 1H NMR in conjunction with principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA). RESULTS The metabonomic profiles of five groups showed the clustering of individual dataset in every group, and the 1st principal component and the 2nd principal component could significantly differentiate the datasets of medium dose or high dose group from other groups. The chemical shift regions at δ 1.22ppm, 1.86ppm, 2.26ppm, 2.34ppm and 2.42ppm showed the most obvious differences among the five groups. The correspondent metabolites were high density lipoprotein, pyruvate/oxaloacetate, arginine and glutamine. CONCLUSION The effects of Bu-Shen-Gu-Chi-Wan on the rat serum metabolites were dose dependent. High density lipoprotein, pyruvate/oxaloacetate, arginine and glutamine may be the serum biomarkers of Bu-Shen-Gu-Chi-Wan.
Collapse
Affiliation(s)
- J Li
- Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China; Department of Implantology, the Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, PR China.
| | - H Yang
- Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China; Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
| | - S Meng
- Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China; Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
| | - J Zhou
- Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China; Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
| | - Y Ding
- Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China; Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
| |
Collapse
|
21
|
Ilievski V, Kinchen JM, Prabhu R, Rim F, Leoni L, Unterman TG, Watanabe K. Experimental Periodontitis Results in Prediabetes and Metabolic Alterations in Brain, Liver and Heart: Global Untargeted Metabolomic Analyses. ACTA ACUST UNITED AC 2016; 3. [PMID: 27390783 DOI: 10.13188/2377-987x.1000020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Results from epidemiological studies suggest that there is an association between periodontitis and prediabetes, however, causality is not known. The results from our previous studies suggest that induction of periodontitis leads to hyperinsulinemia glucose intolerance and insulin resistance, all hallmarks of prediabetes. However, global effects of periodontitis on critical organs in terms of metabolic alterations are unknown. We determined the metabolic effects of periodontitis on brain, liver, heart and plasma resulting from Porphyromonas gingivalis induced periodontitis in mice. Periodontitis was induced by oral application of the periodontal pathogen, Porphyromonas gingivalis for 22 weeks. Global untargeted biochemical profiles in samples from these organs/plasma were determined by liquid and gas chromatography/mass spectrometry and compared between controls and animals with periodontitis. Oral application of Porphyromonas gingivalis induced chronic periodontitis and hallmarks of prediabetes. The results of sample analyses indicated a number of changes in metabolic readouts, including changes in metabolites related to glucose and arginine metabolism, inflammation and redox homeostasis. Changes in biochemicals suggested subtle systemic effects related to periodontal disease, with increases in markers of inflammation and oxidative stress most prominent in the liver. Signs of changes in redox homeostasis were also seen in the brain and heart. Elevated bile acids in liver were suggestive of increased biosynthesis, which may reflect changes in liver function. Interestingly, signs of decreasing glucose availability were seen in the brain. In all three organs and plasma, there was a significant increase in the microbiome-derived bioactive metabolite 4-ethylphenylsulfate sulfate in animals with periodontitis. The results of metabolic profiling suggest that periodontitis/bacterial products alter metabolomic signatures of brain, heart, liver, and plasma in the prediabetic state. These data provide scientific community valuable metabolic signatures that become the basis for understanding the impact of periodontitis on a systemic disease and potentially targets for therapeutic intervention.
Collapse
Affiliation(s)
- Vladimir Ilievski
- Department of Periodontics, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | | | - Ramya Prabhu
- Undergraduate Program, University of Illinois at Chicago, Chicago, IL, USA
| | - Fadi Rim
- Undergraduate Program, University of Illinois at Chicago, Chicago, IL, USA
| | - Lara Leoni
- Department of Radiology, University of Chicago, Chicago, IL, USA
| | - Terry G Unterman
- Departments of Medicine and Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, and Jesse Brown VA Medical Center, Chicago, IL, USA
| | - Keiko Watanabe
- Department of Periodontics, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| |
Collapse
|
22
|
Choi EY, Bae SH, Ha MH, Choe SH, Hyeon JY, Choi JI, Choi IS, Kim SJ. Genistein suppresses Prevotella intermedia lipopolysaccharide-induced inflammatory response in macrophages and attenuates alveolar bone loss in ligature-induced periodontitis. Arch Oral Biol 2015; 62:70-9. [PMID: 26655950 DOI: 10.1016/j.archoralbio.2015.11.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 09/08/2015] [Accepted: 11/23/2015] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Genistein is a major isoflavone subclass of flavonoids found in soybean and a potent tyrosine kinase inhibitor. The present study aimed to assess the effect of genistein on the production of proinflammatory mediators in murine macrophages stimulated with lipopolysaccharide (LPS) isolated from Prevotella intermedia, a pathogen associated with different forms of periodontal disease, and to evaluate its possible influence on alveolar bone loss in ligature-induced periodontitis using micro-computed tomography (micro-CT) analysis as well. DESIGN LPS was isolated from P. intermedia ATCC 25611 by using the standard hot phenol-water method. Culture supernatants were analyzed for nitric oxide (NO) and interleukin-6 (IL-6). Inducible NO synthase (iNOS) protein expression was evaluated by immunoblot analysis. Real-time PCR was carried out to measure iNOS and IL-6 mRNA expression. In addition, effect of genistein on alveolar bone loss was evaluated in a rat model of experimental periodontitis using micro-CT analysis. RESULTS Genistein significantly attenuated P. intermedia LPS-induced production of iNOS-derived NO and IL-6 with attendant decrease in their mRNA expression in RAW264.7 cells. In addition, when genistein was administered to rats, decreases in alveolar bone height and bone volume fraction induced by ligature placement were significantly inhibited. Genistein administration also prevented ligature-induced alterations in the microstructural parameters of trabecular bone, including trabecular thickness, trabecular separation, bone mineral density and structure model index. CONCLUSIONS While additional studies are required, we suggest that genistein could be utilized for the therapy of human periodontitis in the future.
Collapse
Affiliation(s)
- Eun-Young Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, Busan, Republic of Korea
| | - Seung Han Bae
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea
| | - Min Hee Ha
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea
| | - So-Hui Choe
- Department of Biological Science, College of Medical and Life Sciences, Silla University, Busan, Republic of Korea
| | - Jin-Yi Hyeon
- Department of Biological Science, College of Medical and Life Sciences, Silla University, Busan, Republic of Korea
| | - Jeom-Il Choi
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea; Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Gyeongsangnam-do, Republic of Korea
| | - In Soon Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, Busan, Republic of Korea
| | - Sung-Jo Kim
- Department of Periodontology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea; Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Gyeongsangnam-do, Republic of Korea; Institute of Translational Dental Sciences, Pusan National University, Yangsan, Gyeongsangnam-do, Republic of Korea.
| |
Collapse
|
23
|
Nayar G, Gauna A, Chukkapalli S, Velsko I, Kesavalu L, Cha S. Polymicrobial infection alter inflammatory microRNA in rat salivary glands during periodontal disease. Anaerobe 2015; 38:70-75. [PMID: 26481834 DOI: 10.1016/j.anaerobe.2015.10.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 10/08/2015] [Accepted: 10/10/2015] [Indexed: 12/11/2022]
Abstract
Periodontal disease initiated by subgingival pathogens is linked with diminished secretion of saliva, and implies pathogenic bacteria dissemination to or affects secondary sites such as the salivary glands. MicroRNAs activated in response to bacteria may modulate immune responses against pathogens. Therefore, Sprague-Dawley rats were infected by oral lavage consisting of polymicrobial inocula, namely Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola, or sham-infected for 12 weeks (n = 6). We quantified inflammatory miRNA expression levels of miRNA-132, miR-146a, and miR-155 at secondary sites to the primary infection of the gingiva, including submandibular salivary glands, lacrimal glands, and pancreas. The presence of bacteria was detected in situ at secondary sites. Infected rat gingiva showed increased relative expression of miR-155. In contrast, miRNA-155 expression was decreased in submandibular salivary glands, along with positive identification of P. gingivalis in 2/6 and T. denticola in 1/6 rat salivary glands. Furthermore, miRNA-132 and miRNA-146a were significantly decreased in the pancreas of infected rats. This study is the first to show primary periodontal infections can alter miRNA profiles in secondary sites such as the salivary gland and pancreas. Whether these alterations contribute to pathologies of salivary glands in Sjögren's syndrome or of pancreas in diabetes warrants further investigation.
Collapse
Affiliation(s)
- Gautam Nayar
- Department of Oral and Maxillofacial Diagnostic Sciences, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - Adrienne Gauna
- Department of Oral and Maxillofacial Diagnostic Sciences, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - Sasanka Chukkapalli
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - Irina Velsko
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - Lakshmyya Kesavalu
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA; Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA.
| | - Seunghee Cha
- Department of Oral and Maxillofacial Diagnostic Sciences, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| |
Collapse
|