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Lu Z, Li Y, Yu H, Lopes-Virella MF, Huang Y. High-fat diet-induced metabolic syndrome increases ligature-induced alveolar bone loss in mice. Oral Dis 2023; 29:1312-1323. [PMID: 34914154 DOI: 10.1111/odi.14105] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 11/17/2021] [Accepted: 11/25/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND It has been well documented that metabolic syndrome (MetS) increases severity of periodontitis. In this study, we determined the effect of high-fat diet (HFD)-induced MetS on alveolar bone loss in a mouse model with ligature-induced periodontitis. To understand how MetS increases bone loss, we tested our hypothesis that palmitic acid (PA), a most abundant saturated fatty acid in the HFD, interacts with lipopolysaccharide (LPS) to promote osteoclastogenesis. METHODS We induced MetS by feeding mice HFD for 18 weeks and induced periodontitis with ligature placement. After treatments, we assessed alveolar bone loss using micro-computed tomography and determined osteoclastogenesis using tartrate-resistant acid phosphatase (TRAP) staining. To explore the mechanisms, we treated macrophages with PA, LPS or both and analyzed the osteoclast formation and cytokine expression in macrophages. RESULTS While ligature robustly induced periodontitis in mice with or without MetS, the mice with MetS had more bone loss than those without MetS. PA and LPS cooperatively induced osteoclast formation and stimulated the expression of inflammatory cytokines involved in osteoclastogenesis potentially via a FAT/CD36-dependent mechanism in macrophages. CONCLUSIONS HFD-induced MetS increases alveolar bone loss in mice with ligature-induced periodontitis, and PA and LPS cooperatively stimulate osteoclast formation and proinflammatory gene expression in macrophages.
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Affiliation(s)
- Zhongyang Lu
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, College of Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Yanchun Li
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, College of Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Hong Yu
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Maria F Lopes-Virella
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, College of Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, South Carolina, USA
| | - Yan Huang
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, College of Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, South Carolina, USA
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2
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Dundar S, Eltas A, Hakki SS, Malkoc S, Uslu MO, Tuzcu M, Komorowski J, Ozercan IH, Akdemir F, Sahin K. Dietary arginine silicate inositol complex inhibits periodontal tissue loss in rats with ligature-induced periodontitis. Drug Des Devel Ther 2016; 10:3771-3778. [PMID: 27895467 PMCID: PMC5117900 DOI: 10.2147/dddt.s115088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The purpose of this study was to induce experimental periodontitis in rats previously fed diets containing arginine silicate inositol (ASI) complex and examine the biochemical, immunological, and radiological effects. Fifty two 8-week-old female Sprague Dawley rats were equally divided into four groups. The control group included those fed a standard rat diet with no operation performed during the experiment. The periodontitis, ASI I, and ASI II groups were subjected to experimental periodontitis induction for 11 days after being fed a standard rat diet alone, a diet containing 1.81 g/kg ASI complex, or a diet containing 3.62 g/kg ASI complex, respectively, for 8 weeks. Throughout the 11-day duration of periodontitis induction, all rats were fed standard feed. The rats were euthanized on the eleventh day, and their tissue and blood samples were collected. In the periodontitis group, elevated tissue destruction parameters and reduced tissue formation parameters were found, as compared to the ASI groups. Levels of enzymes, cytokines, and mediators associated with periodontal tissue destruction were lower in rats fed a diet containing ASI complex after experimental periodontitis. These results indicate that ASI complex could be an alternative agent for host modulation.
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Affiliation(s)
- Serkan Dundar
- Department of Periodontology, Faculty of Dentistry, Firat University, Elazig
| | - Abubekir Eltas
- Department of Periodontology, Faculty of Dentistry, Inonu University, Malatya
| | - Sema S Hakki
- Department of Periodontology, Faculty of Dentistry, Selcuk University, Konya
| | - Sıddık Malkoc
- Department of Orthodontics, Faculty of Dentistry, Inonu University, Malatya
| | - M Ozay Uslu
- Department of Periodontology, Faculty of Dentistry, Inonu University, Malatya
| | - Mehmet Tuzcu
- Department of Biology, Faculty of Science, Firat University, Elazig, Turkey
| | | | | | - Fatih Akdemir
- Department of Animal Nutrition, Faculty of Fisheries, Inonu University, Malatya
| | - Kazim Sahin
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
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3
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Wang J, Li H, Li B, Gong Q, Chen X, Wang Q. Co-culture of bone marrow stem cells and macrophages indicates intermediate mechanism between local inflammation and innate immune system in diabetic periodontitis. Exp Ther Med 2016; 12:567-572. [PMID: 27446245 PMCID: PMC4950830 DOI: 10.3892/etm.2016.3386] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 12/18/2015] [Indexed: 02/05/2023] Open
Abstract
Diabetic periodontitis (DP), which has been shown to cause alveolar bone loss, is among the most common complications associated with diabetes. The precise mechanisms underlying alveolar bone loss in patients with DP remain unclear. Therefore, the present study established a co-culture system of bone marrow stem cells (BMSCs) and macrophages, in order to investigate the potential mechanisms underlying DP-associated alveolar bone loss in vitro. In addition, Porphyromonas gingivalis (PG) periodontal infection and high glucose levels were used to induce DP in mice. The present study evaluated the protein expression levels of various chemokines and the migration of BMSCs and macrophages. The protein expression levels of extracellular signal-regulated kinase 1 and 2, c-Jun N-terminal kinase and p38 mitogen-activated protein kinase (MAPK) were significantly increased in the BMSCs exposed to high glucose and PG, which may have been due to the activation of MAPK. In addition, DP induction in mice was associated with the release of chemokine (C-C motif) ligand 2 (CCL2) from BMSCs and the secretion of chemokine (C-C Motif) receptor 2 (CCR2) and tumor necrosis factor-α from macrophages, which was associated in turn with enhanced adhesion and chemotaxis of macrophages. The results of the present study suggested that DP led to the upregulation of CCL2 in the periodontal tissues and enhanced macrophage infiltration via the CCL2/CCR2 axis, which in turn promoted alveolar bone loss.
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Affiliation(s)
- Jia Wang
- Department of Stomatology, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, P.R. China
| | - Hao Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Bo Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Qiulin Gong
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xinmin Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Qi Wang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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4
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Taylor JJ, Preshaw PM, Lalla E. A review of the evidence for pathogenic mechanisms that may link periodontitis and diabetes. J Clin Periodontol 2016; 40 Suppl 14:S113-34. [PMID: 23627323 DOI: 10.1111/jcpe.12059] [Citation(s) in RCA: 145] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2012] [Indexed: 12/16/2022]
Abstract
AIMS To review the evidence for the molecular and cellular processes that may potentially link periodontal disease and diabetes. The pathogenic roles of cytokines and metabolic molecules (e.g. glucose, lipids) are explored and the role of periodontal bacteria is also addressed. Paradigms for bidirectional relationships between periodontitis and diabetes are discussed and opportunities for elaborating these models are considered. METHODS Database searches were performed using MeSH terms, keywords, and title words. Studies were evaluated and summarized in a narrative review. RESULTS Periodontal microbiota appears unaltered by diabetes and there is little evidence that it may influence glycaemic control. Small-scale clinical studies and experiments in animal models suggest that IL-1β, TNF-α, IL-6, OPG and RANKL may mediate periodontitis in diabetes. The AGE-RAGE axis is likely an important pathway of tissue destruction and impaired repair in diabetes-associated periodontitis. A role for locally activated pro-inflammatory factors in the periodontium, which subsequently impact on diabetes, remains speculative. CONCLUSION There is substantial information on potential mechanistic pathways which support a close association between diabetes and periodontitis, but there is a real need for longitudinal clinical studies using larger patient groups, integrated with studies of animal models and cells/tissues in vitro.
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Affiliation(s)
- John J Taylor
- Centre for Oral Health Research and Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK.
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5
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Sonnenschein SK, Meyle J. Local inflammatory reactions in patients with diabetes and periodontitis. Periodontol 2000 2015; 69:221-54. [DOI: 10.1111/prd.12089] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2014] [Indexed: 12/14/2022]
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Peer A, Khamaisi M. Diabetes as a risk factor for medication-related osteonecrosis of the jaw. J Dent Res 2014; 94:252-60. [PMID: 25477311 DOI: 10.1177/0022034514560768] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Medication-related osteonecrosis of the jaw (MRONJ) is a severe devastating complication for which the exact pathogenesis is not completely understood. Multiple systemic and local factors may contribute to the development of MRONJ. A growing body of evidence supports diabetes mellitus (DM) as an important risk factor for this complication; however, the exact mechanism by which DM may promote MRONJ has yet to be determined. The current review elucidates the role of DM in the pathogenesis of MRONJ and the mechanisms by which DM may increase the risk for MRONJ. Factors related to DM pathogenesis and treatment may contribute to poor bone quality through multiple damaged pathways, including microvascular ischemia, endothelial cell dysfunction, reduced remodeling of bone, and increased apoptosis of osteoblasts and osteocytes. In addition, DM induces changes in immune cell function and promotes inflammation. This increases the risk for chronic infection in the settings of cancer and its treatment, as well as antiresorptive medication exposure, thus raising the risk of developing MRONJ. A genetic predisposition for MRONJ, coupled with CYP 450 gene alterations, has been suggested to affect the degradation of medications for DM such as thiazolidinediones and may further increase the risk for MRONJ.
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Affiliation(s)
- A Peer
- Department of Oncology, Rambam Medical Center, Technion, Haifa, Israel
| | - M Khamaisi
- Institute of Endocrinology, Diabetes & Metabolism and Department of Internal Medicine C, Rambam Medical Center & RB Rappaport Faculty of Medicine, Technion, Haifa, Israel
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7
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Balci Yuce H, Toker H, Goze F. The histopathological and morphometric investigation of the effects of systemically administered boric acid on alveolar bone loss in ligature-induced periodontitis in diabetic rats. Acta Odontol Scand 2014; 72:729-36. [PMID: 24720865 DOI: 10.3109/00016357.2014.898789] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate the effects of systemically administered boric acid on alveolar bone loss, histopathological changes and oxidant/antioxidant status in ligature-induced periodontitis in diabetic rats. MATERIALS AND METHODS Forty-four Wistar rats were divided into six experimental groups: (1) non-ligated (NL, n = 6) group, (2) ligature only (LO, n = 6) group, (3) Streptozotocin only (STZ, n = 8) group, (4) STZ and ligature (STZ+LO, n = 8) group, (5) STZ, ligature and systemic administration of 15 mg/kg/day boric acid for 15 days (BA15, n = 8) group and (6) STZ, ligature and systemic administration of 30 mg/kg/day boric acid for 15 days (BA30, n = 8) group. Diabetes mellitus was induced by 60 mg/kg streptozotocin. Silk ligatures were placed at the gingival margin of lower first molars of the mandibular quadrant. The study duration was 15 days after diabetes induction and the animals were sacrificed at the end of this period. Changes in alveolar bone levels were clinically measured and tissues were histopathologically examined. Serum total antioxidant status (TAS), total oxidant status (TOS), calcium (Ca) and magnesium (Mg) levels and oxidative stress index (OSI) were evaluated. Primary outcome was alveolar bone loss. Seconder outcome (osteoblast number) was also measured. RESULTS At the end of 15 days, the alveolar bone loss was significantly higher in the STZ+LO group compared to the other groups (p < 0.05). There was no significant difference in alveolar bone loss between the STZ+LO 15 mg/kg boric acid and STZ+LO 30 mg/kg boric acid groups (p > 0.05). Systemically administered boric acid significantly decreased alveolar bone loss compared to the STZ+LO group (p < 0.05). The osteoblast number in the BA30 group was significantly higher than those of the NL, STZ and STZ+LO groups (p < 0.05). Inflammatory cell infiltration was significantly higher in the STZ+LO group the other groups (p < 0.05). Serum TAS levels were significantly higher in the NL and LO groups than the other groups (p < 0.05). The differences in TOS levels were not found to be significant among all the groups (p > 0.05). The OSI values of the BA30 group were significantly lower than the STZ+LO group (p < 0.05). Also, the differences in serum calcium and magnesium levels were insignificant among the all groups (p > 0.05). CONCLUSION Within the limits of this study, it can be suggested that BA, when administered systemically, may reduce alveolar bone loss in the diabetic rat model.
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Affiliation(s)
- Hatice Balci Yuce
- Department of Periodontology, Faculty of Dentistry, Gaziosmanpaşa University , Tokat , Turkey
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8
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Sakalauskiene J, Kubilius R, Gleiznys A, Vitkauskiene A, Ivanauskiene E, Šaferis V. Relationship of clinical and microbiological variables in patients with type 1 diabetes mellitus and periodontitis. Med Sci Monit 2014; 20:1871-7. [PMID: 25294115 PMCID: PMC4199460 DOI: 10.12659/msm.890879] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The aim of the study was to analyze how metabolic control of type 1 diabetes is related to clinical and microbiological periodontal parameters. MATERIAL AND METHODS The study involved 56 subjects aged from 19 to 50 years divided into 2 groups: healthy subjects (the H group), and diabetic (type 1 diabetes) patients with chronic untreated generalized periodontitis (the DM group). The glycosylated hemoglobin value (HbA1c) was determined using the UniCel DxC 800 SYNCHRON System (Beckman Coulter, USA), and the concentration in blood was measured by the turbidimetric immunoinhibition method. A molecular genetic assay (Micro-IDent plus, Germany) was used to detect periodontopathogenic bacteria in plaque samples. Periodontitis was confirmed by clinical and radiological examination. RESULTS Fusobacterium nucleatum, Capnocytophaga species, and Eikenella corrodens were the most frequently found bacteria in dental plaque samples (77.8%, 66.7%, and 33.4%, respectively), whereas Aggregatibacter actinomycetemcomitans was identified 40.7% less frequently in the DM group than in the H group. The strongest relationship was observed between the presence of 2 periodontal pathogens - F. nucleatum and Capnocytophaga spp. - and poorer metabolic control in type 1 diabetes patients (HbA1c) and all clinical parameters of periodontal pathology. CONCLUSIONS Periodontal disease was more evident in type 1 diabetic patients, and the prevalence of periodontitis was greatly increased in subjects with poorer metabolic control.
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Affiliation(s)
- Jurgina Sakalauskiene
- Department of Dental and Maxillofacial Orthopedics, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Ricardas Kubilius
- Department of Maxillofacial Surgery and Surgical Stomatology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Alvydas Gleiznys
- Department of Dental and Maxillofacial Orthopedics, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Astra Vitkauskiene
- Department of Laboratory Medicine, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Egle Ivanauskiene
- Department of Dental and Maxillofacial Orthopedics, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Viktoras Šaferis
- Department of Physics, Mathematics, and Biophysics, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
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9
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Longo PL, Artese HPC, Rabelo MS, Kawamoto D, Foz AM, Romito GA, Dib SA, Mayer MPA. Serum levels of inflammatory markers in type 2 diabetes patients with chronic periodontitis. J Appl Oral Sci 2014; 22:103-8. [PMID: 24676580 PMCID: PMC3956401 DOI: 10.1590/1678-775720130540] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Accepted: 12/12/2013] [Indexed: 01/20/2023] Open
Abstract
Diabetes has been associated with periodontitis, but the mechanisms through which
periodontal diseases affect the metabolic control remain unclear.
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Affiliation(s)
- Priscila Larcher Longo
- Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Hilana Paula Carillo Artese
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Marianade Sousa Rabelo
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Dione Kawamoto
- Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Adriana Moura Foz
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Giuseppe Alexandre Romito
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Sergio Atala Dib
- Department of Endocrinology, School of Medicine, Federal University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Marcia Pinto Alves Mayer
- Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
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Grover HS, Luthra S. Molecular mechanisms involved in the bidirectional relationship between diabetes mellitus and periodontal disease. J Indian Soc Periodontol 2013; 17:292-301. [PMID: 24049328 PMCID: PMC3768178 DOI: 10.4103/0972-124x.115642] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2011] [Accepted: 05/29/2013] [Indexed: 12/15/2022] Open
Abstract
Both diabetes and periodontitis are chronic diseases. Diabetes has many adverse effects on the periodontium, and conversely periodontitis may have deleterious effects further aggravating the condition in diabetics. The potential common pathophysiologic pathways include those associated with inflammation, altered host responses, altered tissue homeostasis, and insulin resistance. This review examines the relationship that exists between periodontal diseases and diabetes mellitus with a focus on potential common pathophysiologic mechanisms.
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Affiliation(s)
- Harpreet Singh Grover
- Department of Periodontics and Oral Implantology, SGT Dental College, Hospital and Research Institute, Gurgaon, Haryana, India
| | - Shailly Luthra
- Department of Periodontics and Oral Implantology, SGT Dental College, Hospital and Research Institute, Gurgaon, Haryana, India
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Shirakata Y, Eliezer M, Nemcovsky CE, Weinreb M, Dard M, Sculean A, Bosshardt DD, Moses O. Periodontal healing after application of enamel matrix derivative in surgical supra/infrabony periodontal defects in rats with streptozotocin-induced diabetes. J Periodontal Res 2013; 49:93-101. [DOI: 10.1111/jre.12084] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2013] [Indexed: 01/21/2023]
Affiliation(s)
- Y. Shirakata
- Department of Periodontology; School of Dental Medicine; University of Bern; Bern Switzerland
- Department of Periodontology; Kagoshima University Graduate School of Medical and Dental Sciences; Kagoshima Japan
| | - M. Eliezer
- Department of Periodontology; The Maurice and Goldschleger School of Dental Medicine; Tel Aviv Israel
| | - C. E. Nemcovsky
- Department of Periodontology; The Maurice and Goldschleger School of Dental Medicine; Tel Aviv Israel
| | - M. Weinreb
- Department of Oral Biology; The Maurice and Goldschleger School of Dental Medicine; Tel Aviv Israel
| | - M. Dard
- Straumann AG; Basel Switzerland
- Department of Periodontology and Implant Dentistry; New York University; Basel Switzerland
| | - A. Sculean
- Department of Periodontology; School of Dental Medicine; University of Bern; Bern Switzerland
| | - D. D. Bosshardt
- Department of Periodontology; School of Dental Medicine; University of Bern; Bern Switzerland
- Department of Oral Surgery and Stomatology; School of Dental Medicine; University of Bern; Bern Switzerland
| | - O. Moses
- Department of Periodontology; The Maurice and Goldschleger School of Dental Medicine; Tel Aviv Israel
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12
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Taylor JJ, Preshaw PM, Lalla E. A review of the evidence for pathogenic mechanisms that may link periodontitis and diabetes. J Periodontol 2013; 84:S113-34. [DOI: 10.1902/jop.2013.134005] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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13
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Toker H, Ozdemir H, Balcı H, Ozer H. N-acetylcysteine decreases alveolar bone loss on experimental periodontitis in streptozotocin-induced diabetic rats. J Periodontal Res 2012; 47:793-9. [PMID: 22712627 DOI: 10.1111/j.1600-0765.2012.01497.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND OBJECTIVE The purpose of this study was to evaluate the morphometric and histopathological changes associated with experimental periodontitis in diabetic rats in response to systemic administration of N-acetylcysteine (NAC), a sulfhydryl-containing thiol antioxidant. MATERIAL AND METHODS Sixty Wistar rats were divided into six experimental groups: nonligated (NL) group; ligature-only (L) group; streptozotocin-only (STZ) group; STZ and ligature (STZ + L) group; and systemic administration of NAC and ligature (70 and 100 mg/kg body weight per day, respectively) (NAC70 and NAC100 groups). Diabetes mellitus was induced by 60 mg/kg of streptozotocin. Silk ligatures were placed at the gingival margin of the lower first molars of the mandibular quadrant. The study duration was 30 d and the animals were killed at the end of this period. Changes in alveolar bone levels were clinically measured and tissues were histopathologically examined to assess the differences among the study groups. RESULTS At the end of the 30-d study period, alveolar bone loss was significantly higher in the STZ + L group compared with the other groups (p < 0.05). Also, alveolar bone loss in all the NAC groups was significantly lower than in the STZ + L and L groups (p < 0.05). The osteoblastic activity in the NAC100 group was significantly higher than in the other groups (p < 0.05). CONCLUSION Within the limits of this study, it can be suggested that NAC, when administered systemically, prevents alveolar bone loss in the diabetic rat model.
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Affiliation(s)
- H Toker
- Department of Periodontology, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey.
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14
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Eliezer M, Nemcovsky C, Romanos G, Kozlovsky A, Tal H, Kolerman R, Weinreb M, Moses O. Opposing effects of diabetes and tetracycline on the degradation of collagen membranes in rats. J Periodontol 2012; 84:529-34. [PMID: 22631880 DOI: 10.1902/jop.2012.120188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Increased collagenolytic activity, characteristic of uncontrolled diabetes, may compromise collagen membrane (CM) survival. Tetracycline (TCN) possesses anticollagenolytic properties and delays CM degradation in healthy animals. This study evaluates the degradation of TCN--immersed and -non-immersed CMs in rats with diabetes compared to those with normoglycemia. METHODS Diabetes was induced in 15 12-week-old male Wistar rats by injection of 65 mg/kg streptozotocin. The control group consisted of 15 rats with normoglycemia. Sixty bilayered CM disks were labeled before implantation with aminohexanoyl-biotin-N-hydroxy-succinimide ester, of which 30 were immersed in 50 mg/mL TCN solution (experimental) or phosphate-buffered saline (PBS) (control). In each animal, two disks (control and experimental) were implanted in two midsagittal calvarial defects in the parietal bone. Similar non-implanted disks served as baseline. After 3 weeks, animals were euthanized, and the calvaria and overlying soft tissues were processed for demineralized histologic analysis. Horseradish peroxidase-conjugated streptavidin was used to detect the biotinylated collagen. The area of residual collagen within the membrane disks was measured and analyzed with a digital image analysis system. Several slides from each specimen were also stained with hematoxylin and eosin. Statistical analysis consisted of paired and unpaired t tests. RESULTS The amount of residual collagen in PBS-immersed disks was lower in rats with diabetes compared to rats with normoglycemia (69% of baseline versus 93%, respectively, P <0.001). TCN immersion increased the amount of residual collagen contents in both diabetic (83% of baseline) and healthy (97.5% of baseline) animals (P <0.0001). CONCLUSION Diabetes increases CM degradation, whereas immersion in 50 mg/mL TCN solution before implantation presents an opposite effect.
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Affiliation(s)
- Meizi Eliezer
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel
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15
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Li H, Deng X, Li Z, Luo C, Liu J, Wang Y. Variation of serum monocyte chemoattractant protein-1 in patients with diabetes and metabolic syndrome. ACTA ACUST UNITED AC 2011; 31:312-316. [PMID: 21671170 DOI: 10.1007/s11596-011-0373-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Indexed: 01/07/2023]
Abstract
This study investigated the variation of serum monocyte chemoattractant protein-1 (MCP-1) in patients with both diabetes mellitus (DM) and metabolic syndrome (MS). Based on the International Diabetes Federation (IDF) diagnostic criteria, 93 patients enrolled in this study were divided into four groups: normal control (NC), simple DM, simple MS, and DM plus MS (DM-MS) groups. The main measures included height, weight, waist circumference (WC), hip circumference, blood pressure, fasting blood glucose, insulin resistance index (HOMA-IR), serum triglyceride (TG), HDL-ch, LDL-ch, and MCP-1. The results showed that the serum levels of MCP-1 in the DM-MS group were significantly increased as compared with those in the DM and MS groups (P<0.05), and the increase in the MCP-1 level in the DM group was much higher than in the MS group (P<0.05). The DM-MS group had the highest HOMA-IR levels, followed by MS, DM and NC groups (P<0.05). Correlation tests showed that the association of MCP-1 with age, HDL-ch, or LDL-ch was insignificant, whereas that of MCP-1 with body mass index (BMI), waist hip rate (WHR), WC, systolic blood pressure (SBP), diastolic blood pressure (DBP), TG, and HOMA-IR was significantly positive. It was concluded that circulating MCP-1 was substantially increased in patients with both DM and MS as compared with that in the patients with DM or MS alone, and the central obese state may contribute to a more vicious proinflammatory condition and insulin resistance in patients with diabetes.
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Affiliation(s)
- Huiqing Li
- Department of Endocrinology, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiuling Deng
- Department of Endocrinology, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zhenqiong Li
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Changqing Luo
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jianshe Liu
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yumei Wang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Braga SMG, Taddei SRDA, Andrade I, Queiroz-Junior CM, Garlet GP, Repeke CE, Teixeira MM, da Silva TA. Effect of diabetes on orthodontic tooth movement in a mouse model. Eur J Oral Sci 2011; 119:7-14. [PMID: 21244505 DOI: 10.1111/j.1600-0722.2010.00793.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Orthodontic tooth movement is achieved by the remodeling of alveolar bone in response to mechanical loading. Type 1 diabetes results in bone remodeling, suggesting that this disease might affect orthodontic tooth movement. The present study investigated the effects of the diabetic state on orthodontic tooth movement. An orthodontic appliance was placed in normoglycemic (NG), streptozotocin-induced diabetes (DB), and insulin-treated DB (IT) C57BL6/J mice. Histomorphometric analysis and quantitative PCR of periodontium were performed. The DB mice exhibited greater orthodontic tooth movement and had a higher number of tartrate-resistant acid phosphate (TRAP) -positive osteoclasts than NG mice. This was associated with increased expression of factors involved in osteoclast activity and recruitment (Rankl, Csf1, Ccl2, Ccl5, and Tnfa) in DB mice. The expression of osteoblastic markers (Runx2, Ocn, Col1, and Alp) was decreased in DB mice. Reversal of the diabetic state by insulin treatment resulted in morphological findings similar to those of NG mice. These results suggest that the diabetic state up-regulates osteoclast migration and activity and down-regulates osteoblast differentiation, resulting in greater orthodontic tooth movement.
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Affiliation(s)
- Sarah M G Braga
- Department of Orthodontics, Faculty of Dentistry, Pontifícia Universidade Católica de Minas Gerais (PUC-Minas), Belo Horizonte, Minas Gerais, Brazil
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Abstract
Diabetes mellitus (DM) is a complex disease with varying degrees of systemic and oral complications. The periodontium is also a target for diabetic damage. Diabetes is a pandemic in both developed and developing countries. In recent years, a link between periodontitis and diabetes mellitus has been postulated. The oral cavity serves as a continuous source of infectious agents that could further worsen the diabetic status of the patient and serve as an important risk factor deterioration of diabetes mellitus. The present review highlights the relationship between diabetes mellitus and periodontitis. The potential mechanisms involved in the deterioration of diabetic status and periodontal disease are also discussed.
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Affiliation(s)
- Abhijit Gurav
- Department of Periodontics, Tatyasaheb Kore Dental College and Research Centre, New Pargaon, Kolhapur, Maharashtra, India.
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Osmotic pressure of gingiva in periodontitis: Correlation with gingival proinflammatory cytokine production and alveolar bone destruction. J Dent Sci 2011. [DOI: 10.1016/j.jds.2011.02.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Um YJ, Jung UW, Kim CS, Bak EJ, Cha JH, Yoo YJ, Choi SH. The influence of diabetes mellitus on periodontal tissues: a pilot study. J Periodontal Implant Sci 2010; 40:49-55. [PMID: 20498760 PMCID: PMC2872813 DOI: 10.5051/jpis.2010.40.2.49] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2009] [Accepted: 02/25/2010] [Indexed: 12/31/2022] Open
Abstract
Purpose The purpose of this study was to preliminarily evaluate the influence of diabetes mellitus (DM) on periodontal tissue without establishment of periodontitis. Methods Seven-week-old db/db mice were used for the diabetic experimental group and systematically healthy mice of the same age were used as controls. After 1 week of acclimatization, the animals were sacrificed for hard and soft tissue evaluation. The pattern of bone destruction was evaluated by stereomicroscope evaluation with alizarin red staining and radiographic evaluation by microscopic computerized tomography images. Histological evaluation was performed with hematoxylin and eosin stain for evaluation of soft tissue changes. Results In both stereomicroscope evaluation and radiograph image analysis, aggressive form of bone destruction was observed in diabetic animals when compared to the systematically healthy controls. In histological evaluation, apical migration of junctional epithelium with slight inflammatory cell infiltration was observed with disarrangement of connective tissue fibers. Conclusions Within the limits of this study, diabetic animals presented distortion in periodontal attachment and an aggressive bone loss pattern when compared to the healthy controls, suggesting that DM has an independent effect on periodontal tissue destruction irrespective of the presence or absence of periodontal disease.
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Affiliation(s)
- Yoo-Jung Um
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
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Venza I, Visalli M, Cucinotta M, De Grazia G, Teti D, Venza M. Proinflammatory gene expression at chronic periodontitis and peri-implantitis sites in patients with or without type 2 diabetes. J Periodontol 2010; 81:99-108. [PMID: 20059422 DOI: 10.1902/jop.2009.090358] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Diabetes and periodontal diseases are often associated. Both have highly inflammatory components, but the role played by distinct phlogistic mediators in their pathogenesis is not fully understood and remains controversial. The purpose of this study is to evaluate whether type 2 diabetes alters the expression of inflammatory mediators in sites with chronic periodontitis (CP) or peri-implantitis (P-IM). METHODS The expression of tumor necrosis factor (TNF)-alpha, interleukin (IL)-6 and -8, and monocyte chemotactic protein (MCP)-1 plus key CC chemokine receptors (CCR1 through 5) and CXC chemokine receptors (CXCR1 through 3) was quantified by real-time polymerase chain reaction (PCR) in gingival or peri-implant biopsies from 135 patients with well-controlled or poorly controlled diabetes and periodontal disease, 65 patients with periodontal disease but otherwise healthy, and 90 systematically and periodontally healthy subjects. Western blots were performed. RESULTS Relative to controls, in patients without diabetes and patients with well-controlled diabetes, TNF-alpha, CCR5, and CXCR3 expression was exclusively higher in sites with P-IM (P <0.01), whereas IL-6 and -8 were overexpressed in sites with CP and, even more, in sites with P-IM (P <0.01). In patients with poor glycemic control, TNF-alpha, CCR5, and CXCR3 mRNAs were increased in sites with CP (P <0.01). A statistically significant higher IL-6 and -8 expression from patients without diabetes and patients with well-controlled diabetes was observed compared to patients with poorly controlled diabetes. Regardless of metabolic/glycemic status, MCP-1 and CCR2 and 4 were markedly higher in both of the oral pathologies examined (P <0.01). At the protein levels, Western blot experiments confirmed the real-time PCR results. CONCLUSIONS These findings showed that: 1) in subjects without diabetes and patients with well-controlled diabetes, TNF-alpha, CCR5, and CXCR3 may constitute distinctive biomarkers of P-IM; 2) poor glycemic control abolished the differences between CP and P-IM regarding the expression of these mediators; and 3) type 2 diabetes affected the expression of TNF-alpha, IL-6 and -8, CCR5, and CXCR3.
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Affiliation(s)
- Isabella Venza
- Department of Surgical Specialities, University of Messina, 98125 Messina, Italy
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Duarte PM, Tezolin KR, Figueiredo LC, Feres M, Bastos MF. Microbial profile of ligature-induced periodontitis in rats. Arch Oral Biol 2010; 55:142-7. [DOI: 10.1016/j.archoralbio.2009.10.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2009] [Revised: 10/14/2009] [Accepted: 10/20/2009] [Indexed: 10/20/2022]
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Bibliography. Current world literature. Diabetes and the endocrine pancreas II. Curr Opin Endocrinol Diabetes Obes 2008; 15:383-93. [PMID: 18594281 DOI: 10.1097/med.0b013e32830c6b8e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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