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Mohamed SS, Zaki HF, Raafat SN. The Effect of Clopidogrel and Ticagrelor on Human Adipose Mesenchymal Stem Cell Osteogenic Differentiation Potential: In Vitro Comparative Study. Adv Pharmacol Pharm Sci 2024; 2024:2990670. [PMID: 38390313 PMCID: PMC10883741 DOI: 10.1155/2024/2990670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 01/29/2024] [Accepted: 02/08/2024] [Indexed: 02/24/2024] Open
Abstract
Ticagrelor (TICA) and clopidogrel (CLP) are extensively used antiplatelet drugs that act by antagonizing the P2Y12 receptors that are found on platelets in addition to bone cells. Aim. The purpose of this study was to investigate the effect of clopidogrel and ticagrelor on stem cells osteogenic differentiation in vitro. Methods. Human adipose-derived mesenchymal stem cells (hAd-MSCs) were divided into (1) control group, (2) osteogenic group (osteo group), (3) clopidogrel group (CLP group), and (4) ticagrelor group (TICA group). The osteogenic differentiation potential was determined by mineralization nodule formation using Alizarin Red S staining, measuring ALP enzyme activity by alkaline phosphatase assay. Quantitative determination for osteogenic markers included osteocalcin (OC); runt-related transcription factor 2 (RUNX2) performed using western blot; osteoprotegerin (OPG) using enzyme-linked immunosorbent assay (ELISA) and inflammatory markers; and tumor necrosis factor (TNF-α) and interleukin-6 (IL-6) measured using real-time polymerase chain reaction quantitative (RT-PCR) and ELISA. Results. In comparison to all study groups, the TICA group showed significant increase in the mineralized extracellular matrix, ALP enzyme activity, and bone markers expression as RUNX2 (P < 0.0001), OC, and OPG (P < 0.05). The expression of IL-6 and TNF-α was determined by RT-qPCR and ELISA techniques. TICA and CLP significantly decreased both markers compared to the control group. The TICA group showed statistically significant lower levels of both markers (P < 0.0001) than the CLP and control groups via the ELISA technique. Conclusion. TICA may possess a positive effect on hAd-MSCs osteogenic differentiation compared to CLP.
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Affiliation(s)
- Sally S Mohamed
- Pharmacology Department, Faculty of Dentistry, The British University in Egypt, Al Shorouk City, Egypt
| | - Hala F Zaki
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Giza, Egypt
| | - Shereen N Raafat
- Pharmacology Department, Faculty of Dentistry, The British University in Egypt, Al Shorouk City, Egypt
- Dental Science Research Group, Health Research Centre of Excellence, The British University in Egypt, Al Shorouk City, Egypt
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Ren J, Fok MR, Zhang Y, Han B, Lin Y. The role of non-steroidal anti-inflammatory drugs as adjuncts to periodontal treatment and in periodontal regeneration. J Transl Med 2023; 21:149. [PMID: 36829232 PMCID: PMC9960225 DOI: 10.1186/s12967-023-03990-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/14/2023] [Indexed: 02/26/2023] Open
Abstract
Periodontitis is the sixth most prevalent chronic disease globally and places significant burdens on societies and economies worldwide. Behavioral modification, risk factor control, coupled with cause-related therapy have been the "gold standard" treatment for managing periodontitis. Given that host inflammatory and immunological responses play critical roles in the pathogenesis of periodontitis and impact treatment responses, several adjunctive strategies aimed at modulating host responses and improving the results of periodontal therapy and maintenance have been proposed. Of the many pharmacological host modulators, we focused on non-steroidal anti-inflammatory drugs (NSAIDs), due to their long history and extensive use in relieving inflammation and pain and reducing platelet aggregation. NSAIDs have been routinely indicated for treating rheumatic fever and osteoarthritis and utilized for the prevention of cardiovascular events. Although several efforts have been made to incorporate NSAIDs into the treatment of periodontitis, their effects on periodontal health remain poorly characterized, and concerns over the risk-benefit ratio were also raised. Moreover, there is emerging evidence highlighting the potential of NSAIDs, especially aspirin, for use in periodontal regeneration. This review summarizes and discusses the use of NSAIDs in various aspects of periodontal therapy and regeneration, demonstrating that the benefits of NSAIDs as adjuncts to conventional periodontal therapy remain controversial. More recent evidence suggests a promising role for NSAIDs in periodontal tissue engineering and regeneration.
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Affiliation(s)
- Jianhan Ren
- grid.194645.b0000000121742757Division of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, the University of Hong Kong, Hong Kong SAR, China
| | - Melissa Rachel Fok
- grid.194645.b0000000121742757Division of Periodontology and Implant Dentistry, Faculty of Dentistry, the University of Hong Kong, Hong Kong SAR, China
| | - Yunfan Zhang
- grid.11135.370000 0001 2256 9319Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China
| | - Bing Han
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China.
| | - Yifan Lin
- Division of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, the University of Hong Kong, Hong Kong SAR, China.
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Lei F, Li M, Lin T, Zhou H, Wang F, Su X. Treatment of inflammatory bone loss in periodontitis by stem cell-derived exosomes. Acta Biomater 2022; 141:333-343. [PMID: 34979326 DOI: 10.1016/j.actbio.2021.12.035] [Citation(s) in RCA: 79] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 12/08/2021] [Accepted: 12/28/2021] [Indexed: 02/07/2023]
Abstract
Periodontitis is the primary cause of tooth loss, but there is no effective treatment to repair inflammatory bone loss in periodontitis. Exosomes emerge as essential paracrine factors of mesenchymal stem cells (MSCs) that mediated tissue regeneration. Here, we investigated the potential of exosomes secreted by periodontal ligament stem cells (PDLSCs) as therapeutics for the bone defect in periodontitis. Exosomes secreted from PDLSCs derived from healthy periodontal ligaments (h-PDLSCs) and their function were evaluated on PDLSCs isolated from the inflammatory periodontal ligament of periodontitis patients (i-PDLSCs). Treatment of exosomes of h-PDLSCs led to an increase in the formation of mineralized nodules and the expressions of osteogenic genes and proteins in i-PDLSCs. Mechanistically, h-PDLSCs-exosomes suppressed the over-activation of canonical Wnt signaling to recover the osteogenic differentiation capacity of i-PDLSCs. To evaluate the therapeutic of exosomes on inflammatory bone loss, h-PDLSCs-exosomes loaded with Matrigel or β-TCP were employed to repair bone defects in rat models of periodontitis. Compared to the vehicle-treated control group, h-PDLSCs-exosomes-treated rats resulted in more bone formation in the defect of alveolar bone. In conclusion, these results demonstrated that exosomes derived from healthy PDLSCs could rescue the osteogenesis capacity of endogenous stem cells under an inflammatory environment and promote regeneration of alveolar bone. Our findings suggest that MSCs-derived exosome is an effective and practical cell-free MSC therapeutic for the treatment of periodontitis. STATEMENT OF SIGNIFICANCE: There is no effective treatment to repair inflammatory bone loss in periodontitis. As essential paracrine factors of PDLSCs, exosomes might mediate tissue regeneration during stem cell therapy. Here, we reported that exosomes secreted from healthy PDLSCs promoted the osteogenic differentiation of PDLSCs derived from periodontitis tissue. Healthy PDLSCs-exosomes treatment resulted in accelerated bone formation in the defect of alveolar bone in rat models of periodontitis. Mechanistically, h-PDLSCs-exosomes suppressed the over-activation of canonical Wnt signaling to recover the osteogenic differentiation capacity of inflammatory PDLSCs. These findings suggest that MSCs-derived exosome is an effective and practical cell-free MSC therapeutic for the treatment of periodontitis.
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SALLUM GCB, SCARDUELI C, OLIVEIRA GJPLD, SPIN NETO R, MARCANTONIO RAC. Avaliação da perda óssea utilizando diferentes parâmetros na análise microtomográfica. Estudo em ratos. REVISTA DE ODONTOLOGIA DA UNESP 2022. [DOI: 10.1590/1807-2577.04522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Resumo Introdução o desafio no uso do Micro-Ct tem sido estabelecer e padronizar padrões adequados para escaneamento e tratamento das imagens, para que se obtenha o máximo desempenho do equipamento, e permitir a comparação dos achados entre diferentes estudos. Objetivo o presente estudo tem como objetivo comparar a porcentagem de volume ósseo em regiões com perda óssea periodontal utilizando diferentes metodologias para definição da área a ser analisada (ROI). Material e método dez ratos foram submetidos à indução de doença periodontal, e, após a eutanásia, as mandíbulas foram escaneadas com cortes de 9 μ e 18 μm de espessura, com passo de rotação de 0.3mm. As imagens foram reconstituídas utilizando o software NRecon, e em seguida, utilizando o software CTAnalyser – CTAn, foram definidas as áreas de interesse (ROI) ao redor dos segundos molares. A primeira área de interesse (ROI1) foi definida em um padrão retangular que se restringiu às regiões interproximais e furca, onde a área total de tecido ósseo foi obtida somando os resultados dos 3 ROIs. A segunda área (ROI2) foi definida no sentido corono/apical ao redor do segundo molar até suas limitações proximais com os dentes vizinhos, onde a porcentagem de tecido ósseo pertencente às raízes foram excluídas das avaliações. As análises foram realizadas com cinco diferentes valores de thresholds (130-50, 130-60, 130-70, 130-80, 130-90 e 130-100). Resultado a análise entre os diferentes ROIs demonstrou que em ambas as análises foi observada a tendência a menor porcentagem de tecido ósseo quanto maior o contraste de tons de cinza utilizado, no entanto, nos resultados obtidos no ROI2 essa diferença não foi estatisticamente significante. Conclusão com os resultados obtidos pode se concluir que a utilização de diferentes thresholds para quantificação óssea, em áreas onde houve doença periodontal, pode trazer resultados divergentes; a definição da área de interesse interfere com os resultados obtidos e que a obtenção de uma área de interesse com a remoção das raízes mostrou-se menos susceptível à variação dos parâmetros de escaneamento.
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The influence of acetylsalicylic acid on bone regeneration: systematic review and meta-analysis. Br J Oral Maxillofac Surg 2020; 59:E1-E16. [PMID: 34736809 DOI: 10.1016/j.bjoms.2020.08.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/10/2020] [Indexed: 12/09/2022]
Abstract
Acetylsalicylic acid (ASA) is commonly used as a non-steroidal anti-inflammatory drug that interferes with multiple biological pathways. ASA acts by stimulating osteogenesis and inhibiting osteoclastogenesis. Thus, the objective of this study was to perform a systematic review and meta-analysis to evaluate the effectiveness of the use of ASA in the bone regeneration in animal models. This review was structured based on the PRISMA Statement and registered on PROSPERO database according to protocol number #CDR42018111403. The quality of evidence was assessed by using the Grades of Recommendation, Assessment, Development, and Evaluation (GRADE). With the development of search strategies, we identified studies on the use of ASA from the following databases: 1- Medline (via PubMed); 2 - Web of Science; 3 - Scopus; and 4 - EMBASE. A total of 296 articles were identified and after screening the title, abstract, and full text, only 18 studies were selected for qualitative analysis and 12 were selected for performance of the quantitative analysis (meta-analysis). A meta-analysis of the amount of bone tissue formed showed a significant advantage when ASA was locally used, revealing a mean difference (MD) of 22.75% (95% CI: 15.39-30.12) p < 0.00001. Within the limitations of the available data, the results were promising and showed that ASA can be effective in bone formation in animal models.
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Zhan Y, Lu R, Meng H, Hou J, Huang W, Wang X, Hu W. Platelets as inflammatory mediators in a murine model of periodontitis. J Clin Periodontol 2020; 47:572-582. [DOI: 10.1111/jcpe.13265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 01/13/2020] [Accepted: 01/30/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Yalin Zhan
- First Clinical Division Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Ruifang Lu
- Department of Periodontology Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Huanxin Meng
- Department of Periodontology Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Jianxia Hou
- Department of Periodontology Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Wenxue Huang
- Department of Periodontology Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Xian'e Wang
- Department of Periodontology Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Wenjie Hu
- Department of Periodontology Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology Beijing China
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Effects of different pre-operative doses of dexamethasone on alveolar repair in rats. Arch Oral Biol 2019; 110:104624. [PMID: 31841964 DOI: 10.1016/j.archoralbio.2019.104624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 11/08/2019] [Accepted: 11/24/2019] [Indexed: 11/22/2022]
Abstract
Dexamethasone has been widly used in oral and maxillofacial surgery for controlling of postoperative surgical inflammation. Despite its clinical effectiveness, several studies have demonstrated the negative impact of this drug on the healing of soft and hard tissues. This study aimed to assess the effects of different pre-operative doses of dexamethasone on alveolar repair. Sixty rats were divided into four groups of 15 animals each. Single pre-operative doses of dexamethasone equivalent to human doses of 4 mg (Group 4 mg), 8 mg (Group 8 mg), and 12 mg (Group 12 mg), calculated by allometric dose extrapolation, were administered; and rats in the Control Group were injected with saline solution. The animals were anesthetized, and their left mandibular first molars (M1) were removed. After three, seven, and 40 days, 5 animals from each group were euthanized, and bone samples of M1 alveolus were collected for radipgraphic, histomorphological and histometric evaluation of the early and late phases of alveolar healing. At three days, Group 12 mg presented reduced radiographic density, percentage of collagen, and connective matrix compared with the Control Group. At 7 days, the percentage of bone was increased in the Control Group compared to Groups 8 mg and 12 mg (P < 0.05). It can be concluded that a single pre-operative dose of 12 mg of dexamethasone affected the early stages of alveolar repair in rats.
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Oballe HJR, Lamers ML, Muniz FWMG, Spuldaro TR, Gaio EJ, Rösing CK. Effects of Low Molecular Weight Heparin on Alveolar Bone Loss in Wistar Rats. Braz Dent J 2019; 30:12-21. [PMID: 30864641 DOI: 10.1590/0103-6440201902364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 09/20/2018] [Indexed: 11/22/2022] Open
Abstract
This study aimed to assess the effects of low molecular weight heparin (LMWH) on alveolar bone loss (ABL), blood count, and counting of megakaryocytes and adipocytes in male Wistar rats. Forty male 60-day Wistar rats were randomly divided into four groups: Control (C), Periodontal Disease (PD), Heparin (Hp) and Heparin + Periodontal Disease (Hp+PD). LMWH was applied for 60 days at doses of 1 ml/kg/day. Blood samples were collected at baseline, 30 and 60. On day-49, PD and Hp+PD groups were subjected to ligature-induced periodontitis around second upper right molar. The left side was assessed as spontaneous alveolar bone loss. Mean ABL in the side with ligature showed significantly different between C (0.35±0.07 mm) and Hp+DP (0.49±0.09 mm) groups (p<0.001), between PD (0.55±0.11 mm) and Hp (0.32±0.06 mm) groups (p<0.001) and between Hp and Hp+DP groups (p<0.001). No significant differences were found among groups for ABL in the side without ligature. Animal weight, food intake, and water consumption showed no statistically significant difference among groups. Megakaryocytes and adipocytes were counted using optical microscopy and no statistically significant differences were found. Within-groups, there were an increase and a decrease, respectively, in the counting of lymphocytes (p=0.005 for C and p=0.009 for Hp+PD groups only) and leukocytes (p=0.003 for C, p=0.001 for PD, p=0.002 for Hp, and p<0.001 for Hp+PD groups). There was no decrease in the number of platelets in the three collection periods. LMWH was not able to affect ABL, but it may change the blood counting, especially increasing lymphocytes.
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Affiliation(s)
- Harry Juan Rivera Oballe
- Department of Periodontology, Faculty of Dentistry, UFRGS - Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Marcelo Lazzaron Lamers
- Neurosciences and Oral Pathology, Faculty of Dentistry UFRGS - Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Tobias Rauber Spuldaro
- Department of Periodontology, Faculty of Dentistry, UFRGS - Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Eduardo José Gaio
- Department of Periodontology, Faculty of Dentistry, UFRGS - Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Cassiano Kuchenbecker Rösing
- Department of Periodontology, Faculty of Dentistry, UFRGS - Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Xu X, Gu Z, Chen X, Shi C, Liu C, Liu M, Wang L, Sun M, Zhang K, Liu Q, Shen Y, Lin C, Yang B, Sun H. An injectable and thermosensitive hydrogel: Promoting periodontal regeneration by controlled-release of aspirin and erythropoietin. Acta Biomater 2019; 86:235-246. [PMID: 30611793 DOI: 10.1016/j.actbio.2019.01.001] [Citation(s) in RCA: 153] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/18/2018] [Accepted: 01/02/2019] [Indexed: 12/18/2022]
Abstract
Periodontitis is an inflammatory disease induced by complex interactions between host immune system and plaque microorganism. Alveolar bone resorption caused by periodontitis is considered to be one of the main reasons for tooth loss in adults. To terminate the alveolar bone resorption, simultaneous anti-inflammation and periodontium regeneration is required, which has not appeared in the existing methods. In this study, chitosan (CS), β-sodium glycerophosphate (β-GP), and gelatin were used to prepare an injectable and thermosensitive hydrogel, which could continuously release aspirin and erythropoietin (EPO) to exert pharmacological effects of anti-inflammation and tissue regeneration, respectively. The releasing profile showed that aspirin and EPO could be continuously released from the hydrogels, which exhibited no toxicity both in vitro and in vivo, for at least 21 days. Immunohistochemistry staining and micro-CT analyses indicated that administration of CS/β-GP/gelatin hydrogels loaded with aspirin/EPO could terminate the inflammation and recover the height of the alveolar bone, which is further confirmed by histological observations. Our results suggested that CS/β-GP/gelatin hydrogels are easily prepared as drug-loading vectors with excellent biocompatibility, and the CS/β-GP/gelatin hydrogels loaded with aspirin/EPO are quite effective in anti-inflammation and periodontium regeneration, which provides a great potential candidate for periodontitis treatment in the dental clinic. Statement of Significance To terminate the alveolar bone resorption caused by periodontitis, simultaneous anti-inflammation and periodontium regeneration is required, which has not appeared in the existing methods. Here, (1) the chitosan (CS)/β-sodium glycerophosphate/gelatin hydrogels loaded with aspirin/erythropoietin (EPO) can form at body temperature in 5 min with excellent biocompatibility in vitro and in vivo; (2) The faster release of aspirin than EPO in the early stage is beneficial for anti-inflammation and provides a microenvironment for ensuring the regeneration function of EPO in the following step. In vivo experiments revealed that the hydrogels are effective in the control of inflammation and regeneration of the periodontium. These results indicate that our synthesized hydrogels have a great potential in the future clinical application.
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Guimaraes-Stabili MR, de Aquino SG, de Almeida Curylofo F, Tasso CO, Rocha FRG, de Medeiros MC, de Pizzol JP, Cerri PS, Romito GA, Rossa C. Systemic administration of curcumin or piperine enhances the periodontal repair: a preliminary study in rats. Clin Oral Investig 2018; 23:3297-3306. [PMID: 30498979 DOI: 10.1007/s00784-018-2755-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 11/22/2018] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Studies have documented the anti-inflammatory effects of spices, which may be related to treatment of chronic diseases. The purpose of this study was to evaluate the influence of curcumin and piperine and their association on experimental periodontal repair in rats. MATERIALS AND METHODS Periodontitis was induced via the installation of a ligature around the first molar. After 15 days, the ligatures were removed, and the rats were separated into groups (12 animals per group): (i) curcumin, (ii) piperine, (iii) curcumin+piperine, (iv) corn oil vehicle, and (v) control group (animals had ligature-induced periodontitis but were not treated). The compounds were administered daily, for 15 days by oral gavage. Animals were euthanized at 5 and 15 days, and hemimaxillae and gingival tissues were harvested. Bone repair was assessed by μCT (microcomputer tomography). Histological sections were stained with hematoxylin/eosin (H/E) for the assessment of cellular infiltrate or picrosirius red for quantification of collagen content, and subjected to immunohistochemistry for detecting NF-ĸB. Gingival tissues were used to evaluate levels of TGF-β and IL-10 (ELISA). RESULTS Curcumin and piperine increased the TGF-β level, significantly improved the collagen repair, and decreased the cellularity and activation of NF-ĸB in the periodontal tissues, but only curcumin caused a significant increase in early bone repair. CONCLUSION Curcumin and piperine promoted a substantive effect on tissue repair; however, there was not synergistic effect of compounds administered in combination. CLINICAL RELEVANCE Curcumin and piperine stimulates the tissue repair and may be potential candidates for the treatment of periodontal disease.
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Affiliation(s)
- Morgana R Guimaraes-Stabili
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara - Univ Estadual Paulista (UNESP), Rua Humaita, 1680 - Centro, Araraquara, SP, 14801-903, Brazil.
| | - Sabrina Garcia de Aquino
- Department of Clinical and Social Dentistry- Health Science Center, Federal University of Paraíba, João Pessoa, Brazil
| | - Fabiana de Almeida Curylofo
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara - Univ Estadual Paulista (UNESP), Rua Humaita, 1680 - Centro, Araraquara, SP, 14801-903, Brazil
| | - Camilla Olga Tasso
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara - Univ Estadual Paulista (UNESP), Rua Humaita, 1680 - Centro, Araraquara, SP, 14801-903, Brazil
| | - Fernanda Regina Godoy Rocha
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara - Univ Estadual Paulista (UNESP), Rua Humaita, 1680 - Centro, Araraquara, SP, 14801-903, Brazil
| | - Marcell Costa de Medeiros
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara - Univ Estadual Paulista (UNESP), Rua Humaita, 1680 - Centro, Araraquara, SP, 14801-903, Brazil
| | - José Paulo de Pizzol
- Department of Histology and Embriology, School of Dentistry at Araraquara, UNESP, Araraquara, SP, Brazil
| | - Paulo Sérgio Cerri
- Department of Histology and Embriology, School of Dentistry at Araraquara, UNESP, Araraquara, SP, Brazil
| | | | - Carlos Rossa
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara - Univ Estadual Paulista (UNESP), Rua Humaita, 1680 - Centro, Araraquara, SP, 14801-903, Brazil
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Akbari H, Asadikaram G, Jafari A, Nazari-Robati M, Ebrahimi G, Ebrahimi N, Masoumi M. Atorvastatin, losartan and captopril may upregulate IL-22 in hypertension and coronary artery disease; the role of gene polymorphism. Life Sci 2018; 207:525-531. [PMID: 29981321 DOI: 10.1016/j.lfs.2018.07.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/25/2018] [Accepted: 07/04/2018] [Indexed: 12/11/2022]
Abstract
AIMS Interleukin-22 (IL-22) may be considered as an important cytokine in maintenance and progression of hypertension and coronary artery disease (CAD). The aim of the present study was to investigate the effect of treatment of hypertension and CAD on serum levels of IL-22 and the possible association of IL-22-rs1179251 gene polymorphism with hypertension and CAD. MATERIALS AND METHODS A total of 286 subjects with suspected CAD were enrolled. Serum levels and gene polymorphism of IL-22 were investigated in hypertensive patients with no CAD (H-Tens), hypertensive patients with CAD (CAD + H-Tens); 3), CAD patients with no hypertension (CAD); and non-hypertensive with no CAD subjects as a control group (Ctr). The patients received routine medications for hypertension and CAD. Serum IL-22 levels and IL-22-rs1179251 gene polymorphism were evaluated using ELISA and RFLP-/PCR techniques, respectively. KEY FINDINGS Findings demonstrated that there were significantly higher levels of IL-22 in case groups (H-Tens, CAD + H-Tens, and CAD) compared to the Ctr group (P = 0.001, P = 0.014, and P < 0.001, respectively). Moreover, atorvastatin, losartan and captopril were administered significantly more in patients compared to the Ctr group. The results indicated a decreased risk of CAD + H-Tens of rs1179251 dominant genetic model (OR = 0.324; 95% CI = 0.121-0.873; P = 0.026). SIGNIFICANCE Atorvastatin, losartan and captopril may be led to upregulation of IL-22 in CAD and hypertensive patients. Meanwhile, higher levels of circulating IL-22 could contribute to alleviating the hypertension and CAD conditions. The G allele of IL-22 rs1179251 may be a protective factor for concomitant hypertension and CAD.
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Affiliation(s)
- Hamed Akbari
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Gholamreza Asadikaram
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran; Department of Biochemistry, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
| | - Ahmad Jafari
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Mahdieh Nazari-Robati
- Department of Biochemistry, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Ghasem Ebrahimi
- Student Research Committee, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Nazanin Ebrahimi
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Masoumi
- Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
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Steffens JP, Santana LCL, Pitombo JCP, Ribeiro DO, Albaricci MCC, Warnavin SVSC, Kantarci A, Spolidorio LC. The role of androgens on periodontal repair in female rats. J Periodontol 2018; 89:486-495. [DOI: 10.1002/jper.17-0435] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/30/2017] [Accepted: 10/05/2017] [Indexed: 12/18/2022]
Affiliation(s)
- João Paulo Steffens
- Department of Stomatology; Universidade Federal do Paraná - UFPR; Curitiba PR Brazil
| | - Luis Carlos Leal Santana
- Department of Physiology and Pathology; Universidade Estadual Paulista - UNESP; School of Dentistry at Araraquara Araraquara SP Brazil
| | - Jonleno Coutinho Paiva Pitombo
- Department of Physiology and Pathology; Universidade Estadual Paulista - UNESP; School of Dentistry at Araraquara Araraquara SP Brazil
| | - Daniel Olivio Ribeiro
- Department of Physiology and Pathology; Universidade Estadual Paulista - UNESP; School of Dentistry at Araraquara Araraquara SP Brazil
| | - Maria Carolina Costa Albaricci
- Department of Physiology and Pathology; Universidade Estadual Paulista - UNESP; School of Dentistry at Araraquara Araraquara SP Brazil
| | | | - Alpdogan Kantarci
- Department of Applied Oral Sciences; Forsyth Institute; Cambridge MA
| | - Luis Carlos Spolidorio
- Department of Physiology and Pathology; Universidade Estadual Paulista - UNESP; School of Dentistry at Araraquara Araraquara SP Brazil
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Therapeutic effect of bone marrow mesenchymal stem cells pretreated with acetylsalicylic acid on experimental periodontitis in rats. Int Immunopharmacol 2017; 54:320-328. [PMID: 29195233 DOI: 10.1016/j.intimp.2017.11.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 11/17/2017] [Accepted: 11/21/2017] [Indexed: 02/05/2023]
Abstract
Periodontitis is a local inflammatory environment with dysregulation of host responses, which results in destruction of periodontal tissues. Mesenchymal stem cells (MSCs) have been proven to play important roles in tissue regeneration by serving as progenitor cells, but its therapeutic outcomes are yet, evaluated variable and unpredictable because of the influence of local inflammation. Acetylsalicylic acid (ASA) has been reported to benefit for MSCs in terms of inflammation control and tissue regeneration. In this study, we aimed to explore the effect of bone marrow mesenchymal stem cells (BMMSCs) pretreated with ASA (ASA-BMMSCs) on periodontal bone repair in a ligature and bacteria-induced periodontitis model in rats. We show herein that, ASA-BMMSCs treatment reduced inflammatory infiltration and alveolar bone loss in periodontitis rats, reflected by immunohistochemistry staining of OPG/RANK-L and Micro-CT. Levels of TNF-α and IL-17 decreased while IL-10 increased after the treatment of ASA-BMMSCs in periodontitis rats. In addition, less osteoclasts number was detected in ASA-BMMSCs treated group. In vitro study showed that ASA facilitated BMMSCs proliferation and differentiation, which might explain the reduced bone loss in periodontitis. These results together suggest that local application of ASA-BMMSCs in periodontal lesion sites is capable of improving inflammatory microenvironment, promoting alveolar bone regeneration, thus leading to a recovery of periodontal homeostasis. Besides, this study also provides us a new idea that a combined application of ASA and BMMSCs may be a novel approach for periodontitis treatment and periodontal bone regeneration.
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Zhan Y, Lu R, Meng H, Wang X, Sun X, Hou J. The role of platelets in inflammatory immune responses in generalized aggressive periodontitis. J Clin Periodontol 2017; 44:150-157. [PMID: 27883202 DOI: 10.1111/jcpe.12657] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Yalin Zhan
- Department of Periodontology; Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology; Beijing China
| | - Ruifang Lu
- Department of Periodontology; Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology; Beijing China
| | - Huanxin Meng
- Department of Periodontology; Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology; Beijing China
| | - Xian'e Wang
- Department of Periodontology; Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology; Beijing China
| | - Xiaojun Sun
- Department of Stomatology; The First Hospital of Shanxi Medical University; Taiyuan Shanxi China
| | - Jianxia Hou
- Department of Periodontology; Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology; Beijing China
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Sepehri Z, Masoumi M, Ebrahimi N, Kiani Z, Nasiri AA, Kohan F, Sheikh Fathollahi M, Kazemi Arababadi M, Asadikaram G. Atorvastatin, Losartan and Captopril Lead to Upregulation of TGF-β, and Downregulation of IL-6 in Coronary Artery Disease and Hypertension. PLoS One 2016; 11:e0168312. [PMID: 28033321 PMCID: PMC5199082 DOI: 10.1371/journal.pone.0168312] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 11/30/2016] [Indexed: 12/29/2022] Open
Abstract
Introduction Coronary artery disease (CAD) and hypertension are the main reasons of ischemic heart diseases (IHDs). Cytokines as the small glycoproteins are the main arm of immune system and manipulate all of the cardiovascular diseases. The aim of the current study was to examine the effects of treatment of hypertension and CAD on serum levels of IL-6, IL-8, TGF-β and TNF-α. Material and Methods This interventional study was performed on the patients with hypertension without CAD (group 1), hypertension and CAD (group 2), CAD but not hypertension (group 3) and without hypertension and CAD as controls (group 4). The patients received routine treatment for hypertension and CAD. Serum levels of IL-6, IL-8, TGF-β and TNF-α were analyzed in the groups treated with various drugs, using ELISA technique. Results With regard to the medications, Atorvastatin, Losartan and Captopril were administered more in patients (groups 1, 2 and 3) than the patients without hypertension and CAD. The results revealed that serum levels of TGF-β and IL-6 were significantly increased and decreased, respectively, in the groups 1, 2 and 3 when compared to group 4. Serum levels of TGF-β were also increased in females in comparison to males in the group 4. Discussion According to the results it seems that Atorvastatin, Losartan and Captopril have reduced inflammation in in vivo conditions via downregulation of IL-6 and upregulation of TGF-β.
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Affiliation(s)
- Zahra Sepehri
- Department of Internal Medicine, Faculty of Medicine, Zabol University of Medical Sciences, Zabol, Iran
| | - Mohammad Masoumi
- Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
- * E-mail: ,
| | - Nazanin Ebrahimi
- Department of Biochemistry, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Zohre Kiani
- Student Research Committee, Zabol University of Medical Sciences, Zabol, Iran
- Department of Internal Medicine, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Akbar Nasiri
- Department of Anesthesiology, Zabol University of Medical Sciences, Zabol, Iran
| | - Farhad Kohan
- Student Research Committee, Zabol University of Medical Sciences, Zabol, Iran
| | - Mahmood Sheikh Fathollahi
- Immunology of Infectious Diseases Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
- Department of Social Medicine, Faculty of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Mohammad Kazemi Arababadi
- Immunology of Infectious Diseases Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
- Department of Laboratory Sciences, Faculty of Paramedicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Gholamreza Asadikaram
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
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Mangiferin inhibits lipopolysaccharide-induced production of interleukin-6 in human oral epithelial cells by suppressing toll-like receptor signaling. Arch Oral Biol 2016; 71:155-161. [PMID: 27517515 DOI: 10.1016/j.archoralbio.2016.08.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 07/27/2016] [Accepted: 08/03/2016] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Oral epithelial cells have currently been found to play an important role in inflammatory modulation in periodontitis. Mangiferin is a natural glucosylxanthone with anti-inflammatory activity. The aim of this study was to investigate the regulatory effect of mangiferin on lipopolysaccharide (LPS)-induced production of proinflammatory cytokine interleukin-6 (IL-6) in oral epithelial cells and the underlying mechanisms. DESIGN The levels of LPS-induced IL-6 production in OKF6/TERT-2 oral keratinocytes were detected using enzyme-linked immunosorbent assay (ELISA). The expression of Toll-like receptor (TLR) 2 and TLR4 was determined using western blot analysis. And the phosphorylation of TLR downstream nuclear factor-κB (NF-κB), p38 mitogen-activated protein kinase (p38 MAPK) and c-Jun N-terminal kinase (JNK) was examined using cell-based protein phosphorylation ELISA kits. RESULTS We found that mangiferin reduced LPS-upregulated IL-6 production in OKF6/TERT-2 cells. Additionally, mangiferin inhibited LPS-induced TLR2 and TLR4 overexpression, and suppressed the phosphorylation of NF-κB, p38 MAPK and JNK. Moreover, mangiferin repressed IL-6 production and TLR signaling activation in a dose-dependent manner after 24h treatment. CONCLUSIONS Mangiferin decreases LPS-induced production of IL-6 in human oral epithelial cells by suppressing TLR signaling, and this glucosylxanthone may have potential for the treatment of periodontitis.
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Balli U, Cetinkaya BO, Keles GC, Keles ZP, Guler S, Sogut MU, Erisgin Z. Assessment of MMP-1, MMP-8 and TIMP-2 in experimental periodontitis treated with kaempferol. J Periodontal Implant Sci 2016; 46:84-95. [PMID: 27127689 PMCID: PMC4848383 DOI: 10.5051/jpis.2016.46.2.84] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 02/28/2016] [Indexed: 11/10/2022] Open
Abstract
Purpose The objective of this study was to investigate the effect of a dietary flavonoid, kaempferol, which has been shown to possess antiallergic, anti-inflammatory, anticarcinogenic, and antioxidant activities on the periodontium by histomorphometric analysis and on gingival tissue matrix metalloproteinase-1 (MMP-1), MMP-8, and tissue inhibitor of metalloproteinase-2 (TIMP-2) by biochemical analysis of rats after experimental periodontitis induction. Methods Sixty Wistar rats were randomly divided into six groups of ten rats each, and silk ligatures were placed around the cervical area of the mandibular first molars for 15 days, except in the healthy control rats. In the experimental periodontitis groups, systemic kaempferol (10 mg/kg/2d) and saline were administered by oral gavage at two different periods (with and without the presence of dental biofilm) to all rats except for the ten non-medicated rats. Alveolar bone area, alveolar bone level, and attachment level were determined by histomorphometric analysis, and gingival tissue levels of MMP-1, MMP-8, and TIMP-2 were detected by biochemical analysis. Results Significantly greater bone area and significantly less alveolar bone and attachment loss were observed in the kaempferol application groups compared to the control groups (P<0.05). In addition, gingival tissue MMP-1 and -8 levels were significantly lower in the kaempferol application groups compared to the control groups and the periodontitis group (P<0.001). There were no statistically significant differences in TIMP-2 levels between the kaempferol and saline application groups (P>0.05). Conclusions Kaempferol application may be useful in decreasing alveolar bone resorption, attachment loss, and MMP-1 and -8 production in experimental periodontitis.
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Affiliation(s)
- Umut Balli
- Department of Periodontology, Bulent Ecevit University Faculty of Dentistry, Zonguldak, Turkey
| | - Burcu Ozkan Cetinkaya
- Department of Periodontology, Ondokuzmayis University Faculty of Dentistry, Samsun, Turkey
| | - Gonca Cayir Keles
- Department of Periodontology, Ondokuzmayis University Faculty of Dentistry, Samsun, Turkey
| | - Zeynep Pinar Keles
- Department of Periodontology, Ondokuzmayis University Faculty of Dentistry, Samsun, Turkey
| | - Sevki Guler
- Department of Periodontology, Ondokuzmayis University Faculty of Dentistry, Samsun, Turkey
| | - Mehtap Unlu Sogut
- Ondokuzmayis University Samsun High School of Health, Samsun, Turkey
| | - Zuleyha Erisgin
- Department of Histology and Embryology, Giresun University Faculty of Medicine, Giresun, Turkey
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Coimbra LS, Steffens JP, Alsadun S, Albiero ML, Rossa C, Pignolo RJ, Spolidorio LC, Graves DT. Clopidogrel Enhances Mesenchymal Stem Cell Proliferation Following Periodontitis. J Dent Res 2015. [PMID: 26220958 DOI: 10.1177/0022034515598273] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Bone formation is dependent on the differentiation of osteoblasts from mesenchymal stem cells (MSCs). In addition to serving as progenitors, MSCs reduce inflammation and produce factors that stimulate tissue formation. Upon injury, MSCs migrate to the periodontium, where they contribute to regeneration. We examined the effect of clopidogrel and aspirin on MSCs following induction of periodontitis in rats by placement of ligatures. We showed that after the removal of ligatures, which induces resolution of periodontal inflammation, clopidogrel had a significant effect on reducing the inflammatory infiltrate. It also increased the number of osteoblasts and MSCs. Mechanistically, the latter was linked to increased proliferation of MSCs in vivo and in vitro. When given prior to inducing periodontitis, clopidogrel had little effect on MSC or osteoblasts numbers. Applying aspirin before or after induction of periodontitis did not have a significant effect on the parameters measured. These results suggest that clopidogrel may have a positive effect on MSCs in conditions where a reparative process has been initiated.
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Affiliation(s)
- L S Coimbra
- Department of Physiology and Pathology, Faculdade de Odontologia de Araraquara, UNESP-Univ Estadual Paulista-Araraquara, São Paulo, Brazil
| | - J P Steffens
- Department of Physiology and Pathology, Faculdade de Odontologia de Araraquara, UNESP-Univ Estadual Paulista-Araraquara, São Paulo, Brazil
| | - S Alsadun
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - M L Albiero
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - C Rossa
- Department of Diagnosis and Surgery, Faculdade de Odontologia de Araraquara, UNESP-Univ Estadual Paulista-Araraquara, São Paulo, Brazil
| | - R J Pignolo
- Department of Medicine and Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - L C Spolidorio
- Department of Physiology and Pathology, Faculdade de Odontologia de Araraquara, UNESP-Univ Estadual Paulista-Araraquara, São Paulo, Brazil
| | - D T Graves
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Kotsakis GA, Thai A, Ioannou AL, Demmer RT, Michalowicz BS. Association between low-dose aspirin and periodontal disease: results from the continuous national health and nutrition examination survey (NHANES) 2011-2012. J Clin Periodontol 2015; 42:333-41. [DOI: 10.1111/jcpe.12380] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2015] [Indexed: 01/07/2023]
Affiliation(s)
- Georgios A. Kotsakis
- Division of Periodontology; Department of Developmental and Surgical Sciences; University of Minnesota; Minneapolis MN USA
| | - Ashley Thai
- Department of Epidemiology; Mailman School of Public Health; Columbia University; New York NY USA
| | - Andreas L. Ioannou
- Division of Periodontology; Department of Developmental and Surgical Sciences; University of Minnesota; Minneapolis MN USA
| | - Ryan T. Demmer
- Department of Epidemiology; Mailman School of Public Health; Columbia University; New York NY USA
| | - Bryan S. Michalowicz
- Division of Periodontology; Department of Developmental and Surgical Sciences; University of Minnesota; Minneapolis MN USA
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Spolidorio LC, Ramalho Lucas PD, Steffens JP, da Silva HAB, Tubero Euzebio Alves V, Palomari Spolidorio DM, Holzhausen M. Influence of Parstatin on Experimental Periodontal Disease and Repair in Rats. J Periodontol 2014; 85:1266-74. [DOI: 10.1902/jop.2014.130619] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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22
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Liao CH, Fei W, Shen ZH, Yin MP, Lu C. Expression and distribution of TNF-α and PGE2 of periodontal tissues in rat periodontitis model. ASIAN PAC J TROP MED 2014; 7:412-6. [DOI: 10.1016/s1995-7645(14)60067-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/15/2014] [Accepted: 03/15/2014] [Indexed: 10/25/2022] Open
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de Molon RS, de Avila ED, Boas Nogueira AV, Chaves de Souza JA, Avila-Campos MJ, de Andrade CR, Cirelli JA. Evaluation of the Host Response in Various Models of Induced Periodontal Disease in Mice. J Periodontol 2014; 85:465-77. [DOI: 10.1902/jop.2013.130225] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Coimbra LS, Steffens JP, Rossa C, Graves DT, Spolidorio LC. Clopidogrel enhances periodontal repair in rats through decreased inflammation. J Clin Periodontol 2014; 41:295-302. [PMID: 24433307 DOI: 10.1111/jcpe.12203] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2013] [Indexed: 12/18/2022]
Abstract
AIM We hypothesized that platelet inactivation induced by drugs might interfere with periodontal repair in experimental periodontitis by suppressing the release of biological mediators from platelets at the site of injury. MATERIAL AND METHODS Sixty rats were randomly assigned to six groups (n = 10) and ligatures were placed around lower first molars of three groups. The other three groups were used as negative controls. Ligatures were removed after 10 days of periodontitis induction and all groups were submitted to treatment with aspirin (Asp) (30 mg/kg), clopidogrel (Clop) (75 mg/kg) or NaCl 0.9% intra-gastrically once daily for 3 days. Periodontal tissue was assessed by the measurement of CXCL12, CXCL4, CCL5 and platelet-derived growth factor (PDGF) by enzyme-linked immunosorbent assay; histomorphometrical analysis of polymorphonuclear (PMN) infiltration, attachment loss, bone loss and osteoclast numbers and quantification of blood vessels by imunnohistochemistry. RESULTS During periodontal repair and treatment with NaCl 0.9%, CCL5 was decreased and CXCL12 increased when compared with negative control groups. Asp and Clop did not affect CCL5 expression, decreased CXCL12 but only Clop decreased CXCL4 and PDGF content compared with saline-treated animals. Clop increased blood vessel number, reduced PMN count and decreased attachment and bone loss, also decreased osteoclast number in animals submitted or not to periodontal repair. CONCLUSION Systemic administration of Clop for 3 days improved the repair process associated with experimental periodontal disease, suggesting that it may have therapeutic value under situations where tissues undergo a transition from inflammation to repair.
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Affiliation(s)
- Leila S Coimbra
- Department of Physiology and Pathology, Faculdade de Odontologia de Araraquara, UNESP-Univ Estadual Paulista, Araraquara, Brazil
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Coimbra LS, Steffens JP, Muscará MN, Rossa C, Spolidorio LC. Antiplatelet drugs reduce the immunoinflammatory response in a rat model of periodontal disease. J Periodontal Res 2013; 49:729-35. [DOI: 10.1111/jre.12155] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2013] [Indexed: 12/01/2022]
Affiliation(s)
- L. S. Coimbra
- Department of Physiology and Pathology; Faculdade de Odontologia de Araraquara; UNESP-Universidade Estadual Paulista; Araraquara SP Brazil
| | - J. P. Steffens
- Department of Physiology and Pathology; Faculdade de Odontologia de Araraquara; UNESP-Universidade Estadual Paulista; Araraquara SP Brazil
| | - M. N. Muscará
- Department of Pharmacology; Institute of Biomedical Sciences; Universidade de São Paulo São Paulo SP Brazil
| | - C. Rossa
- Department of Diagnosis and Surgery; Faculdade de Odontologia de Araraquara; UNESP-Universidade Estadual Paulista; Araraquara SP Brazil
| | - L. C. Spolidorio
- Department of Physiology and Pathology; Faculdade de Odontologia de Araraquara; UNESP-Universidade Estadual Paulista; Araraquara SP Brazil
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Price U, Le HOT, Powell SE, Schmid MJ, Marx DB, Zhang Y, Wang D, Narayana N, Reinhardt RA. Effects of local simvastatin-alendronate conjugate in preventing periodontitis bone loss. J Periodontal Res 2012; 48:541-8. [DOI: 10.1111/jre.12036] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2012] [Indexed: 11/28/2022]
Affiliation(s)
- U. Price
- Department of Surgical Specialties; University of Nebraska Medical Center, College of Dentistry; Lincoln NE USA
| | - H. -O. T. Le
- Department of Surgical Specialties; University of Nebraska Medical Center, College of Dentistry; Lincoln NE USA
| | - S. E. Powell
- Department of Growth and Development; University of Nebraska Medical Center, College of Dentistry; Lincoln NE USA
| | - M. J. Schmid
- Research/Administration; University of Nebraska Medical Center; College of Dentistry; Lincoln NE USA
| | - D. B. Marx
- Department of Statistics; University of Nebraska; Lincoln NE USA
| | - Y. Zhang
- Department of Pharmaceutical Sciences; University of Nebraska Medical Center; College of Pharmacy; Omaha NE USA
| | - D. Wang
- Department of Pharmaceutical Sciences; University of Nebraska Medical Center; College of Pharmacy; Omaha NE USA
| | - N. Narayana
- Department of Oral Biology; University of Nebraska Medical Center, College of Dentistry; Lincoln NE USA
| | - R. A. Reinhardt
- Department of Surgical Specialties; University of Nebraska Medical Center, College of Dentistry; Lincoln NE USA
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Psychological stress delays periodontitis healing in rats: the involvement of basic fibroblast growth factor. Mediators Inflamm 2012; 2012:732902. [PMID: 23326020 PMCID: PMC3544372 DOI: 10.1155/2012/732902] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 10/28/2012] [Accepted: 11/11/2012] [Indexed: 11/25/2022] Open
Abstract
Objective. To evaluate the effects of psychological stress on periodontitis healing in rats and the contribution of basic fibroblast growth factor (bFGF) expression to the healing process. Methods. Ninety-six rats were randomly distributed into control group, periodontitis group, and periodontitis plus stress group. Then, the rats were sacrificed at baseline and week(s) 1, 2, and 4. The periodontitis healing condition was assessed, and the expression of interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and bFGF were tested by immunohistochemistry. Results. The stressed rats showed reduced body weight gain, behavioral changes, and increased serum corticosterone and ACTH levels (P < 0.05). The surface of inflammatory infiltrate, alveolar bone loss, attachment loss, and expression of IL-1β and TNF-α in the stress group were higher than those in the periodontitis group at weeks 2 and 4 (P < 0.05). Rats with experimental periodontitis showed decreased bFGF expression (P < 0.05), and the recovery of bFGF expression in the stress group was slower than that in the periodontitis group (P < 0.05). Negative correlations between inflammatory cytokines and bFGF were detected. Conclusion. Psychological stress could delay periodontitis healing in rats, which may be partly mediated by downregulation of the expression of bFGF in the periodontal ligament.
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Lim JC, Mitchell CH. Inflammation, pain, and pressure--purinergic signaling in oral tissues. J Dent Res 2012; 91:1103-9. [PMID: 23042126 DOI: 10.1177/0022034512463239] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Signaling by extracellular purines such as ATP and adenosine has implications for dental research on multiple levels, with the association of purinergic signaling with inflammation, mechanical strain, and pain making the system particularly relevant for the specific challenges in the oral cavity. Oral tissues express a variety of G-protein-coupled P2Y receptors for ATP and P1 receptors for adenosine in addition to ionotropic P2X receptors for ATP. When these receptors are combined with the plethora of extracellular enzymes capable of manipulating extracellular agonist levels, a complex system for regulating oral health emerges, and recent findings have begun to identify a key role for purinergic signaling in oral pathophysiology. For example, the manipulation of extracellular ATP levels by P. gingivalis reduces inflammasome activation and apoptosis linked to P2X(7) receptor activation. Release of ATP by periodontal ligaments may link mechanical strain to bone remodeling. Activation of P2X receptors is implicated in dental pain, and receptor antagonists represent important targets for new analgesics. Altered levels of adenosine receptors in periodontal disease also suggest a role for nucleosides in dental signaling. The intricacies of the purinergic signaling system make it well-suited for the unique concerns of dental research, and future findings will doubtless confirm this importance.
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Affiliation(s)
- J C Lim
- Department of Anatomy, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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Herrera BS, Coimbra LS, Bastos AS, Teixeira SA, Steffens JP, Muscara MN, Spolidorio LC. Platelet-rich plasma stimulates cytokine expression and alkaline phosphatase activity in osteoblast-derived osteosarcoma cells. Arch Oral Biol 2012; 57:1282-9. [DOI: 10.1016/j.archoralbio.2012.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 02/27/2012] [Accepted: 03/16/2012] [Indexed: 11/16/2022]
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30
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Vanderlei JMTMD, Messora MR, Fernandes PG, Novaes AB, Palioto DB, Grisi MFDM, Souza SLSD, Gerlach RF, Antoniali C, Taba M. Arterial Hypertension Perpetuates Alveolar Bone Loss. Clin Exp Hypertens 2012; 35:1-5. [DOI: 10.3109/10641963.2012.683969] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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