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Malvicini G, Marruganti C, Abu Leil M, Martignoni M, Pasqui E, de Donato G, Grandini S, Gaeta C. Association between apical periodontitis and secondary outcomes of atherosclerotic cardiovascular disease: A case-control study. Int Endod J 2024; 57:281-296. [PMID: 38204179 DOI: 10.1111/iej.14018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/22/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
AIM To evaluate the association between apical periodontitis (AP) and atherosclerotic cardiovascular disease (ASCDV). METHODOLOGY A total of 65 periodontally and systemically healthy patients (age ≥ 40 years) were included in the study. Periapical status was assessed through dental examination and periapical radiographs; 33 subjects had AP (AP+), while 32 acted as control (AP-). Moreover, data regarding their periapical index (PAI) score and the Decayed, Missing, and Filled Teeth (DMFT) index were recorded. All subjects underwent echo-colour Doppler assessment of carotid intima-media thickness (CIMT), carotid plaques, degree of stenosis using the North American Symptomatic Carotid Surgery Trial (NASCET) method, maximum diameter of the abdominal aorta (maximum AA) and common iliac arteries (CIA) diameters. Furthermore, peripheral blood flow was also measured using the ankle-brachial index (ABI). Simple and multiple regression analyses were performed. RESULTS Among AP+ patients, 57.58% disclosed at least one sign of subclinical carotid atherosclerosis. Multiple regression analysis identified AP as a significant risk indicator for carotid plaques [OR = 4.87 (1.27, 18.98; p = .021)] and marked carotid intima-media thickenings (OR = 14.58 [1.22, 176.15], p = .035). A significant association was established between AP and other cardiovascular (CV) variables (CIMT, NASCET, and maximum AA). On the contrary, a higher PAI score does not correlate to increased odds of carotid alterations, and the presence of AP did not prove any significant change in CIA and ABI. No significant correlation was established between DMFT and other variables. CONCLUSIONS Results from the current study highlight that the presence of AP may be regarded as a risk indicator for ASCVD, with AP being associated with 5-fold increased odds of having carotid plaques and 15-fold increased odds of having marked carotid intima-media thickenings. Further studies should be conducted in order to verify whether AP treatment could be beneficial for ASCVD signs.
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Affiliation(s)
- Giulia Malvicini
- Unit of Endodontics and Restorative Dentistry, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Crystal Marruganti
- Unit of Endodontics and Restorative Dentistry, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Mustafa Abu Leil
- Unit of Vascular Surgery, Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy
| | - Marco Martignoni
- Unit of Endodontics and Restorative Dentistry, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Edoardo Pasqui
- Unit of Vascular Surgery, Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy
| | - Gianmarco de Donato
- Unit of Vascular Surgery, Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy
| | - Simone Grandini
- Unit of Endodontics and Restorative Dentistry, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Carlo Gaeta
- Unit of Endodontics and Restorative Dentistry, Department of Medical Biotechnologies, University of Siena, Siena, Italy
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Sun J, Feng S, Ding T, Wang T, Du L, Kang W, Ge S. Fusobacterium nucleatum dysregulates inflammatory cytokines and NLRP3 inflammasomes in oral cells. Oral Dis 2024. [PMID: 38409736 DOI: 10.1111/odi.14899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/14/2024] [Accepted: 02/06/2024] [Indexed: 02/28/2024]
Abstract
OBJECTIVE This study aimed to clarify the difference in Fusobacterium nucleatum (F. nucleatum) induced inflammatory cytokines and nod-like receptor protein 3 (NLRP3) inflammasomes dysregulation among three periodontal cells. METHODS Oral epithelial cells (HIOECs), THP-1 macrophages, and human gingival fibroblasts (HGFs) were exposed to F. nucleatum with/without adenosine triphosphate (ATP) and nigericin (Nig). Cell morphology was assessed by scanning electron microscopy. qRT-PCR, protein microarrays, and bioinformatic methods were used to evaluate the cytokines and their complex interplay. NLRP3 inflammasomes activation was detected by western blotting and ELISA. RESULTS F. nucleatum adhered to and invaded cells. In HIOECs, F. nucleatum enhanced interleukin (IL)-1α/1β/6/10/13, TNF-α, and interferon (IFN)-γ expression. In THP-1 macrophages, F. nucleatum up-regulated IL-1α/1β/6/10 and TNF-α levels. In HGFs, F. nucleatum increased IL-6 levels. F. nucleatum and ATP synergistically boosted IFN-γ level in THP-1 macrophages and IL-13 level in HGFs. IL-1α/1β/6, and TNF-α served as epicenters of the inflammatory response. Additionally, F. nucleatum activated NLRP3 inflammasomes in HIOECs, and ATP/Nig boosted the activation. F. nucleatum also triggered NLRP3 inflammasomes in THP-1 macrophages, but in HGFs, only NLRP3 and caspase-1 levels were elevated. CONCLUSION F. nucleatum infiltrated periodontal supporting cells and dysregulated inflammatory cytokines and NLRP3 inflammasomes.
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Affiliation(s)
- Jingzhuo Sun
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Susu Feng
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Tian Ding
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Ting Wang
- Department of General Dentistry, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Lingqian Du
- Department of Stomatology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Wenyan Kang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
| | - Shaohua Ge
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, China
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Lillis KV, Grinceviciute R, Diogenes A. Sex-specific nociceptor modulation of the apical periodontitis transcriptome. Front Mol Biosci 2024; 11:1338511. [PMID: 38404963 PMCID: PMC10884291 DOI: 10.3389/fmolb.2024.1338511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/15/2024] [Indexed: 02/27/2024] Open
Abstract
Introduction: Apical periodontitis (AP) is a painful disease that develops quickly following dental infections and is primarily characterized by robust inflammation surrounding the tissues of the affected tooth, resulting in disruption of bone homeostasis and periradicular bone loss. Moreover, there are distinct clinical presentations, symptoms, and responses to AP treatment between male and female subjects, creating a desperate need to further understand the sex-specific mechanisms of AP. Methods: With the growing evidence that nociceptors modulate AP development, we utilized RNA sequencing in nociceptor-ablated (Nav1.8 cre+/-, diphtheria toxin Alox+/-) transgenic mice to study the nociceptor regulation of the periapical lesion transcriptome using a rodent model of AP in female mice over 14 days. Results: Overall, we found that female mice exhibit unique patterns of differentially expressed genes throughout AP infection compared to male mice and that the expression of these genes is regulated by nociceptors. Additionally, nociceptor ablation results in a more significant enrichment of biological processes related to immune responses earlier compared to cre-control (Nav1.8 cre+/-) females and greater expression of genes involved in inflammatory processes and osteolytic activity. Discussion: Therefore, while nociceptor ablation augments inflammatory and bone resorption responses in both males and females in a mouse model of AP, transcriptomic analyses demonstrate that the mechanisms through which nociceptors modulate AP are distinct between sexes. These studies will provide the foundation needed to study further mechanisms of sex differences in AP, an area with a desperate need for investigation to treat current AP patients. Understanding these mechanisms can ultimately inform treatment options to alleviate suffering for millions of patients suffering from AP.
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Affiliation(s)
| | | | - Anibal Diogenes
- Department of Endodontics, University of Texas Health at San Antonio, San Antonio, TX, United States
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Paljevic E, Brekalo Prso I, Hrstic JV, Pezelj-Ribaric S, Persic Bukmir R. Impact of Smoking on the Healing of Apical Periodontitis after Nonsurgical Endodontic Treatment. Eur J Dent 2024; 18:124-130. [PMID: 36977477 PMCID: PMC10959606 DOI: 10.1055/s-0043-1761451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
OBJECTIVES The aim of this prospective study was to compare the healing of periapical bone between smokers and nonsmokers after root canal therapy. The effects of duration and intensity of smoking on the healing rate of apical periodontitis were analyzed. MATERIALS AND METHODS Fifty-five smokers were included in this study. The control group consisted of healthy nonsmokers who matched the smoker group in age and sex. Only teeth with a favorable periodontal prognosis and adequate coronal restoration were included in the study. The periapical status of treated teeth was assessed using the periapical index system at follow-ups after 6 and 12 months. STATISTICAL ANALYSIS The chi-squared test and Mann-Whitney U test were used to assess the changes in periapical index score at baseline and in subsequent time intervals between the two groups examining dichotomized and ordinal data, respectively. Multivariate logistic regression analysis was used to test the association of independent variables age, gender, tooth type, arch type, and smoking index with the outcome variable. The outcome variable was set as the presence versus absence of apical periodontitis. RESULTS The analysis at 12-month follow-up revealed a significantly higher healing rate in control group than in smokers (90.9 vs. 58.2; χ2 = 13.846; p < 0.001). Smokers had significantly higher periapical index scores than the control group (p = 0.024). The multivariate logistic regression analysis demonstrated that an increase in the value of the smoking index significantly increases the risk of apical periodontitis persistence (odds ratio [OR] =7.66; 95% confidence interval [CI]: 2.51-23.28; p < 0.001) for smoking index < 400 and (OR = 9.65; 95% CI: 1.45-64.14; p = 0.019) for smoking index 400 to 799. CONCLUSION The results from this study show a lower rate of apical periodontitis healing in a group of smokers at 1-year follow-up. Delayed periapical healing seems to be associated with the cigarette smoking exposure.
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Affiliation(s)
- Ema Paljevic
- Department of Endodontics and Restorative Dentistry, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia
| | - Ivana Brekalo Prso
- Department of Endodontics and Restorative Dentistry, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia
- Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Jelena Vidas Hrstic
- Department of Endodontics and Restorative Dentistry, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia
| | - Sonja Pezelj-Ribaric
- Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
- Department of Oral Medicine, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia
| | - Romana Persic Bukmir
- Department of Endodontics and Restorative Dentistry, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia
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Wan C, Wang Y, Li L, Liu L, Guan Q. SMAD2/3 Phosphorylation is correlated with matrix metalloproteinase 9 expression in human periapical lesions. Arch Oral Biol 2023; 155:105796. [PMID: 37657158 DOI: 10.1016/j.archoralbio.2023.105796] [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: 06/23/2023] [Revised: 08/05/2023] [Accepted: 08/21/2023] [Indexed: 09/03/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the presence of phosphorylated SMAD2/3 (P-SMAD2/3) in periapical lesions in humans and its possible correlation with matrix metalloproteinase 9 (MMP9) during the development of apical periodontitis. DESIGN In this study, a total of 38 samples were collected, consisting of 16 healthy controls and 22 periapical lesions. These samples underwent fixation, dehydration, and embedding for further histologic and immunochemical analysis. The expression of phosphorylated SMAD2/3 and MMP9 was quantified using the average integrated optical density. Additionally, immunofluorescence analysis was conducted to investigate the colocalization of phosphorylated SMAD2/3 and MMP9. RESULTS The study found that periapical lesions exhibited a stronger expression of MMP9 compared to healthy controls. Additionally, the expression of phosphorylated SMAD2/3 was observed to increase in the periapical granulomas and radicular cysts group, as compared to the normal group (P < 0.01). The results of the immunofluorescence test showed that phosphorylated SMAD2/3 was colocalized with MMP9. CONCLUSIONS The study found that SMAD2/3 phosphorylation is correlated with matrix metalloproteinase 9 expression in human periapical lesions, suggesting its potential involvement in tissue destruction and immune cell infiltration in periapical lesions.
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Affiliation(s)
- Chunyan Wan
- Department of Endodontics, the Affiliated Hospital of Qingdao University, Qingdao, China; School of Stomatology, Qingdao University, Qingdao, China.
| | - Yongzheng Wang
- Department of Endodontics, the Affiliated Hospital of Qingdao University, Qingdao, China; School of Stomatology, Qingdao University, Qingdao, China
| | - Lei Li
- Department of Ultrasound, the 8th People's Hospital of Qingdao, Qingdao, China
| | - Lingshuang Liu
- Department of Endodontics, the Affiliated Hospital of Qingdao University, Qingdao, China; School of Stomatology, Qingdao University, Qingdao, China
| | - Qunli Guan
- Department of Endodontics, the Affiliated Hospital of Qingdao University, Qingdao, China; School of Stomatology, Qingdao University, Qingdao, China
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Sathyanarayanan K, Ranjana NI, Bhavana M, R M, Sankar A, Mirnalini S. Asymptomatic Apical Periodontitis Lesions and Their Association With Systemic Inflammatory Burden: A Preliminary Prospective Clinical Study. Cureus 2023; 15:e46357. [PMID: 37920638 PMCID: PMC10619333 DOI: 10.7759/cureus.46357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2023] [Indexed: 11/04/2023] Open
Abstract
Background: Apical periodontitis (AP) is an inflammatory disorder of the periapical tissues caused by the persistence of a microbial infection within the root canal system of the affected tooth. Clinically, it is symptomatic or asymptomatic depending on several factors such as the type of microorganisms, bacterial load, immunological reaction, and local tissue mediators. Chronic or asymptomatic infections may initiate and modulate intravascular accumulation of inflammatory cells resulting in endothelial dysfunction which subsequently represents a possible systemic inflammatory burden. Aim: The present study aimed to evaluate the relationship between asymptomatic AP and systemic inflammatory burden by assessing the levels of chronic inflammatory cells. Methodology: A total of 25 patients diagnosed with asymptomatic AP who showed a negative response to the pulp sensitivity test with no history of any systemic diseases were included in this preliminary prospective observational study. Blood samples were collected at each phase of the study, and a complete hemogram was carried out. All hematological parameters were recorded before and after root canal therapy and they were analyzed for statistical significance at p <.05 using IBM SPSS Statistics for Windows, Version 21 (Released 2012; IBM Corp., Armonk, New York, United States). Results: Evaluation of the mean total leukocyte count (TLC), lymphocyte, and eosinophil cell count showed a significant reduction in the number of cells before and after root canal therapy treatment respectively (p<.05). One-way analysis of variance also revealed statistical significance at p < .05 with a weak positive correlation between the TLC, lymphocyte, and eosinophil count before and after treatment. Conclusion: The present study showed that systemically healthy individuals with asymptomatic AP had increased inflammatory burden in the circulation, and thus, it is essential to identify and quantify the risk associated. It was evident that complete healing of the asymptomatic AP lesions results in an overall reduction of systemic inflammatory cells ultimately reducing the burden and risk of associated systemic inflammatory diseases.
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Affiliation(s)
| | - N I Ranjana
- Conservative Dentistry and Endodontics, Sathyabama Dental College and Hospital, Chennai, IND
| | - Mohan Bhavana
- Conservative Dentistry and Endodontics, Sathyabama Dental College and Hospital, Chennai, IND
| | - Megavarnan R
- Conservative Dentistry and Endodontics, Sathyabama Dental College and Hospital, Chennai, IND
| | - Aravinthan Sankar
- Conservative Dentistry and Endodontics, Sathyabama Dental College and Hospital, Chennai, IND
| | - Selvakumar Mirnalini
- Conservative Dentistry and Endodontics, Sathyabama Dental College and Hospital, Chennai, IND
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Yang H, Luo D, Yuan MJ, Yang JJ, Wang DS. Five-year outcomes of immediate implant placement for mandibular molars with and without chronic apical periodontitis: A retrospective study. World J Clin Cases 2023; 11:5218-5229. [DOI: 10.12998/wjcc.v11.i22.5218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/26/2023] [Accepted: 07/10/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND Most physicians consider molars with chronic apical periodontitis (CAP) lesions as contraindications for immediate implant placement. At the patient’s request, we perform immediate implant placement of the mandibular molars with CAP in clinical practice.
AIM To retrospectively analyze and compare the 5-year outcomes of immediate implant placement of the mandibular molars with CAP and those without obvious inflammation.
METHODS The clinical data of patients with immediate implant placement of the mandibular molars in the Department of Oral and Maxillofacial Surgery, the Affiliated Hospital of Qingdao University, from June 2015 to June 2017 were collected. The patients were divided into CAP (n = 52) and no-CAP (n = 45) groups. Changes in bone mineral density and bone mass around implants were analyzed 5 years after implant restoration.
RESULTS At 5 years after implantation, the peri-implant bone mineral density was 528.2 ± 78.8 Hounsfield unit (HU) in the CAP group and 562.6 ± 82.9 HU in the no-CAP group (P = 0.126). Marginal bone resorption around implants did not differ significantly between the two groups, including buccal (P = 0.268) or lingual (P = 0.526) resorption in the vertical direction or buccal (P = 0.428) or lingual (P = 0.560) resorption in the horizontal direction. Changes in the peri-implant jump space did not differ significantly between the two groups, including the buccal (P = 0.247) or lingual (P = 0.604) space in the vertical direction or buccal (P = 0.527) or lingual (P = 0.707) space in the horizontal direction. The gray value of cone-beam computed tomography measured using Image J software can reflect the bone mineral density. In the CAP area, the gray values of the bone tissue immediately and 5 years after implant placement differed significantly from those of the surrounding bone tissue (P < 0.01).
CONCLUSION The results of this study suggest that immediate implant placement of the mandibular molars with CAP can achieve satisfactory 5-year clinical results, without significant differences in the complications, survival rate, or bone tissue condition from the no-CAP mandibular molars.
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Affiliation(s)
- Hua Yang
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
- School of Stomatology, Qingdao University, Qingdao 266003, Shandong Province, China
| | - Dan Luo
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
- School of Stomatology, Qingdao University, Qingdao 266003, Shandong Province, China
| | - Mu-Jie Yuan
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
- School of Stomatology, Qingdao University, Qingdao 266003, Shandong Province, China
| | - Jian-Jun Yang
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
- School of Stomatology, Qingdao University, Qingdao 266003, Shandong Province, China
| | - Da-Shan Wang
- School of Stomatology, Qingdao University, Qingdao 266003, Shandong Province, China
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
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Yang H, Luo D, Yuan MJ, Yang JJ, Wang DS. Five-year outcomes of immediate implant placement for mandibular molars with and without chronic apical periodontitis: A retrospective study. World J Clin Cases 2023; 11:5224-5235. [PMID: 37621586 PMCID: PMC10445073 DOI: 10.12998/wjcc.v11.i22.5224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/26/2023] [Accepted: 07/10/2023] [Indexed: 08/04/2023] Open
Abstract
BACKGROUND Most physicians consider molars with chronic apical periodontitis (CAP) lesions as contraindications for immediate implant placement. At the patient's request, we perform immediate implant placement of the mandibular molars with CAP in clinical practice. AIM To retrospectively analyze and compare the 5-year outcomes of immediate implant placement of the mandibular molars with CAP and those without obvious inflammation. METHODS The clinical data of patients with immediate implant placement of the mandibular molars in the Department of Oral and Maxillofacial Surgery, the Affiliated Hospital of Qingdao University, from June 2015 to June 2017 were collected. The patients were divided into CAP (n = 52) and no-CAP (n = 45) groups. Changes in bone mineral density and bone mass around implants were analyzed 5 years after implant restoration. RESULTS At 5 years after implantation, the peri-implant bone mineral density was 528.2 ± 78.8 Hounsfield unit (HU) in the CAP group and 562.6 ± 82.9 HU in the no-CAP group (P = 0.126). Marginal bone resorption around implants did not differ significantly between the two groups, including buccal (P = 0.268) or lingual (P = 0.526) resorption in the vertical direction or buccal (P = 0.428) or lingual (P = 0.560) resorption in the horizontal direction. Changes in the peri-implant jump space did not differ significantly between the two groups, including the buccal (P = 0.247) or lingual (P = 0.604) space in the vertical direction or buccal (P = 0.527) or lingual (P = 0.707) space in the horizontal direction. The gray value of cone-beam computed tomography measured using Image J software can reflect the bone mineral density. In the CAP area, the gray values of the bone tissue immediately and 5 years after implant placement differed significantly from those of the surrounding bone tissue (P < 0.01). CONCLUSION The results of this study suggest that immediate implant placement of the mandibular molars with CAP can achieve satisfactory 5-year clinical results, without significant differences in the complications, survival rate, or bone tissue condition from the no-CAP mandibular molars.
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Affiliation(s)
- Hua Yang
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
- School of Stomatology, Qingdao University, Qingdao 266003, Shandong Province, China
| | - Dan Luo
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
- School of Stomatology, Qingdao University, Qingdao 266003, Shandong Province, China
| | - Mu-Jie Yuan
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
- School of Stomatology, Qingdao University, Qingdao 266003, Shandong Province, China
| | - Jian-Jun Yang
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
- School of Stomatology, Qingdao University, Qingdao 266003, Shandong Province, China
| | - Da-Shan Wang
- School of Stomatology, Qingdao University, Qingdao 266003, Shandong Province, China
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
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Kagioka T, Itoh S, Hue MT, Abe M, Hayashi M. Lithium carbonate accelerates the healing of apical periodontitis. Sci Rep 2023; 13:7886. [PMID: 37193735 DOI: 10.1038/s41598-023-34700-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 05/05/2023] [Indexed: 05/18/2023] Open
Abstract
Apical periodontitis is a disease caused by bacterial invasions through the root canals. Our previous study reported that lithium chloride (LiCl) had a healing effect on apical periodontitis. The aim of this report is to investigate the healing properties and mechanism of lithium ion (Li+) for apical periodontitis using rat root canal treatment model. 10-week-old male Wistar rat's mandibular first molars with experimentally induced apical periodontitis underwent root canal treatment and were applied lithium carbonate (Li2CO3) containing intracanal medicament. Base material of the medicament was used as a control. Subject teeth were scanned by micro-CT every week and the periapical lesion volume was evaluated. The lesion volume of Li2CO3 group was significantly smaller than that of the control group. Histological analysis showed that in Li2CO3 group, M2 macrophages and regulatory T cells were induced in the periapical lesion. In situ hybridization experiments revealed a greater expression of Col1a1 in Li2CO3 group compared with the control group. At 24 h after application of intracanal medicament, Axin2-positive cells were distributed in Li2CO3 group. In conclusion, Li2CO3 stimulates Wnt/β-catenin signaling pathway and accelerate the healing process of apical periodontitis, modulating the immune system and the bone metabolism.
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Affiliation(s)
- Takumi Kagioka
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shousaku Itoh
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Mai Thi Hue
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Makoto Abe
- Department of Oral Anatomy and Developmental Biology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Mikako Hayashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan
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10
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Dal-Fabbro R, Swanson WB, Capalbo LC, Sasaki H, Bottino MC. Next-generation biomaterials for dental pulp tissue immunomodulation. Dent Mater 2023; 39:333-349. [PMID: 36894414 PMCID: PMC11034777 DOI: 10.1016/j.dental.2023.03.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/24/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023]
Abstract
OBJECTIVES The current standard for treating irreversibly damaged dental pulp is root canal therapy, which involves complete removal and debridement of the pulp space and filling with an inert biomaterial. A regenerative approach to treating diseased dental pulp may allow for complete healing of the native tooth structure and enhance the long-term outcome of once-necrotic teeth. The aim of this paper is, therefore, to highlight the current state of dental pulp tissue engineering and immunomodulatory biomaterials properties, identifying exciting opportunities for their synergy in developing next-generation biomaterials-driven technologies. METHODS An overview of the inflammatory process focusing on immune responses of the dental pulp, followed by periapical and periodontal tissue inflammation are elaborated. Then, the most recent advances in treating infection-induced inflammatory oral diseases, focusing on biocompatible materials with immunomodulatory properties are discussed. Of note, we highlight some of the most used modifications in biomaterials' surface, or content/drug incorporation focused on immunomodulation based on an extensive literature search over the last decade. RESULTS We provide the readers with a critical summary of recent advances in immunomodulation related to pulpal, periapical, and periodontal diseases while bringing light to tissue engineering strategies focusing on healing and regenerating multiple tissue types. SIGNIFICANCE Significant advances have been made in developing biomaterials that take advantage of the host's immune system to guide a specific regenerative outcome. Biomaterials that efficiently and predictably modulate cells in the dental pulp complex hold significant clinical promise for improving standards of care compared to endodontic root canal therapy.
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Affiliation(s)
- Renan Dal-Fabbro
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.
| | - W Benton Swanson
- Department of Biologic and Materials Science, Division of Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.
| | - Leticia C Capalbo
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Hajime Sasaki
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.
| | - Marco C Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA; Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI, USA.
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Park OJ, Ha YE, Sim JR, Lee D, Lee EH, Kim SY, Yun CH, Han SH. Butyrate potentiates Enterococcus faecalis lipoteichoic acid-induced inflammasome activation via histone deacetylase inhibition. Cell Death Discov 2023; 9:107. [PMID: 36977666 PMCID: PMC10050190 DOI: 10.1038/s41420-023-01404-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 03/08/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Enterococcus faecalis, a Gram-positive opportunistic pathogen having lipoteichoic acid (LTA) as a major virulence factor, is closely associated with refractory apical periodontitis. Short-chain fatty acids (SCFAs) are found in the apical lesion and may affect inflammatory responses induced by E. faecalis. In the current study, we investigated inflammasome activation by E. faecalis LTA (Ef.LTA) and SCFAs in THP-1 cells. Among SCFAs, butyrate in combination with Ef.LTA markedly enhanced caspase-1 activation and IL-1β secretion whereas these were not induced by Ef.LTA or butyrate alone. Notably, LTAs from Streptococcus gordonii, Staphylococcus aureus, and Bacillus subtilis also showed these effects. Activation of TLR2/GPCR, K+ efflux, and NF-κB were necessary for the IL-1β secretion induced by Ef.LTA/butyrate. The inflammasome complex comprising NLRP3, ASC, and caspase-1 was activated by Ef.LTA/butyrate. In addition, caspase-4 inhibitor diminished IL-1β cleavage and release, indicating that non-canonical activation of the inflammasome is also involved. Ef.LTA/butyrate induced Gasdermin D cleavage, but not the release of the pyroptosis marker, lactate dehydrogenase. This indicated that Ef.LTA/butyrate induces IL-1β production without cell death. Trichostatin A, a histone deacetylase (HDAC) inhibitor, enhanced Ef.LTA/butyrate-induced IL-1β production, indicating that HDAC is engaged in the inflammasome activation. Furthermore, Ef.LTA and butyrate synergistically induced the pulp necrosis that accompanies IL-1β expression in the rat apical periodontitis model. Taken all these results together, Ef.LTA in the presence of butyrate is suggested to facilitate both canonical- and non-canonical inflammasome activation in macrophages via HDAC inhibition. This potentially contributes to dental inflammatory diseases such as apical periodontitis, particularly associated with Gram-positive bacterial infection.
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Affiliation(s)
- Ok-Jin Park
- Department of Oral Microbiology and Immunology, and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ye-Eun Ha
- Department of Oral Microbiology and Immunology, and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ju-Ri Sim
- Department of Oral Microbiology and Immunology, and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Dongwook Lee
- Department of Oral Microbiology and Immunology, and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Eun-Hye Lee
- Department of Conservative Dentistry and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 03080, Republic of Korea
| | - Sun-Young Kim
- Department of Conservative Dentistry and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 03080, Republic of Korea
| | - Cheol-Heui Yun
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
- Institutes of Green Bio Science Technology, Seoul National University, Pyeongchang, 25354, Republic of Korea
| | - Seung Hyun Han
- Department of Oral Microbiology and Immunology, and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 08826, Republic of Korea.
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Mackiewicz E, Bonsmann T, Kaczor-Wiankowska K, Nowicka A. Volumetric Assessment of Apical Periodontitis Using Cone-Beam Computed Tomography-A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2940. [PMID: 36833634 PMCID: PMC9966796 DOI: 10.3390/ijerph20042940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/28/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
This systematic review aimed to investigate the scientific literature on volumetric studies concerning the diagnosis and treatment of apical periodontitis using CBCT. A systematic review protocol was written following the preferred reporting items for the systematic reviews and meta-analyses (PRISMA) checklist. Four electronic databases were searched for relevant publications in English, which were published up to 21 January 2023. The inclusion criteria and corresponding search keys were applied. The risk of bias was assessed using the Joanna Briggs Institute Meta-Analysis of Statistic Assessment and Review Instrument. The search strategy identified 202 studies, with 123 studies excluded during the title and abstract screening and 47 studies left for full text screening. A total of 17 studies met the inclusion criteria. The lesion volume was measured and classified according to different indices which compared the effectiveness of their diagnostics. Moreover, the volume of AP lesions increased with the thickness of the maxillary sinus mucosa in primary and secondary infections and decreased due to endodontic treatment. Volumetric measurements using CBCT are useful in the correct definition of periapical tissue pathosis using a CBCT periapical volume index and assessment of the dynamics of the treatment of apical lesions.
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Affiliation(s)
- Ewa Mackiewicz
- Student Scientific Circle at the Department of Conservative Dentistry and Endodontics, Pomeranian Medical University in Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Tobias Bonsmann
- Student Scientific Circle at the Department of Conservative Dentistry and Endodontics, Pomeranian Medical University in Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Kinga Kaczor-Wiankowska
- Department of Conservative Dentistry and Endodontics, Pomeranian Medical University in Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Alicja Nowicka
- Department of Conservative Dentistry and Endodontics, Pomeranian Medical University in Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland
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Dos Santos RM, Tsosura TVS, Belardi BE, Chaves-Neto AH, Chiba FY, Mattera MSDLC, Tessarin GWL, Bravo LT, Cintra LTA, Matsushita DH. Melatonin decreases plasma TNF-α and improves nonenzymatic antioxidant defence and insulin sensitivity in rats with apical periodontitis fed a high-fat diet. Int Endod J 2023; 56:164-178. [PMID: 36261317 DOI: 10.1111/iej.13852] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 10/14/2022] [Accepted: 10/16/2022] [Indexed: 01/17/2023]
Abstract
AIM To analyse the effects of melatonin (ME) treatment on oxidative stress and insulin resistance (IR) in rats with apical periodontitis (AP) fed a high-fat diet (HFD). METHODOLOGY Eighty 60-day-old rats were divided into eight groups: control (CN), AP, HFD with AP (HFDAP), control with ME (CNME), AP with ME (APME), HFD with ME (HFDME) and HFD with AP+ME (HFDAPME). The animals from the HFD groups were fed a HFD throughout the experimental period. On day 7, the animals from the AP groups were subjected to experimental AP, and after 70 days, the ME groups were treated for 30 days. Glycaemia, insulinaemia, homeostatic model assessment for IR index, tumour necrosis factor-α (TNF-α), and interleukin-6 were analysed in plasma using biochemical tests and enzyme-linked immunosorbent assay. Thiobarbituric acid-reactive substances (TBARS), carbonyl protein (CP), superoxide dismutase (SOD), catalase, glutathione peroxidase, glutathione (GSH) and total antioxidant capacity (ferric reducing antioxidant power [FRAP]) were analysed in the gastrocnemius muscle. RESULTS (1) Association of AP and HDF exacerbated IR, and ME treatment improved this alteration; (2) AP and HFD and their association showed increased TNF-α, and ME reversed it; (3) TBARS increased in the AP and HFDAP groups, and ME reversed only in the group with the association of disease and diet; (4) CP increased in all HFD groups and improved in the ME groups; (5) GSH activity decreased in all experimental groups, and ME increased this parameter only in the CN and AP groups; (6) FRAP did not change between the groups, but ME treatment increased its activity in the AP and HFD groups; (7) ME increased SOD in the CN and AP groups. CONCLUSION Apical periodontitis and HFD promoted IR, and the association of AP with diet promoted IR exacerbation; this resistance might have been caused by an increase in TNF-α. AP promoted more intense changes in lipid oxidative damage than in protein oxidative damage. In non-enzymatic antioxidant defence, it was observed that both AP and HFD and their association promoted a decrease in GSH levels. Overall, ME treatment reversed changes such as oxidative stress and IR.
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Affiliation(s)
- Rodrigo Martins Dos Santos
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil.,Programa dePós-Graduação Multicêntrico em Ciências Fisiológicas (PPGMCF)/Sociedade Brasileira de Fisiologia (SBFis), School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Thais Verônica Saori Tsosura
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil.,Programa dePós-Graduação Multicêntrico em Ciências Fisiológicas (PPGMCF)/Sociedade Brasileira de Fisiologia (SBFis), School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Bianca Elvira Belardi
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil.,Programa dePós-Graduação Multicêntrico em Ciências Fisiológicas (PPGMCF)/Sociedade Brasileira de Fisiologia (SBFis), School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Antonio Hernandes Chaves-Neto
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil.,Programa dePós-Graduação Multicêntrico em Ciências Fisiológicas (PPGMCF)/Sociedade Brasileira de Fisiologia (SBFis), School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Fernando Yamamoto Chiba
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | | | | | - Lara Teschi Bravo
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Luciano Tavares Angelo Cintra
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Dóris Hissako Matsushita
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
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14
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Fan Y, Lyu P, Bi R, Cui C, Xu R, Rosen CJ, Yuan Q, Zhou C. Creating an atlas of the bone microenvironment during oral inflammatory-related bone disease using single-cell profiling. eLife 2023; 12:82537. [PMID: 36722472 PMCID: PMC9925051 DOI: 10.7554/elife.82537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 01/30/2023] [Indexed: 02/02/2023] Open
Abstract
Oral inflammatory diseases such as apical periodontitis are common bacterial infectious diseases that may affect the periapical alveolar bone tissues. A protective process occurs simultaneously with the inflammatory tissue destruction, in which mesenchymal stem cells (MSCs) play a primary role. However, a systematic and precise description of the cellular and molecular composition of the microenvironment of bone affected by inflammation is lacking. In this study, we created a single-cell atlas of cell populations that compose alveolar bone in healthy and inflammatory disease states. We investigated changes in expression frequency and patterns related to apical periodontitis, as well as the interactions between MSCs and immunocytes. Our results highlight an enhanced self-supporting network and osteogenic potential within MSCs during apical periodontitis-associated inflammation. MSCs not only differentiated toward osteoblast lineage cells but also expressed higher levels of osteogenic-related markers, including Sparc and Col1a1. This was confirmed by lineage tracing in transgenic mouse models and human samples from oral inflammatory-related alveolar bone lesions. In summary, the current study provides an in-depth description of the microenvironment of MSCs and immunocytes in both healthy and disease states. We also identified key apical periodontitis-associated MSC subclusters and their biomarkers, which could further our understanding of the protective process and the underlying mechanisms of oral inflammatory-related bone disease. Taken together, these results enhance our understanding of heterogeneity and cellular interactions of alveolar bone cells under pathogenic and inflammatory conditions. We provide these data as a tool for investigators not only to better appreciate the repertoire of progenitors that are stress responsive but importantly to help design new therapeutic targets to restore bone lesions caused by apical periodontitis and other inflammatory-related bone diseases.
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Affiliation(s)
- Yi Fan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan UniversityChengduChina
| | - Ping Lyu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan UniversityChengduChina
| | - Ruiye Bi
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan UniversityChengduChina
| | - Chen Cui
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of StomatologyGuangzhouChina
| | - Ruoshi Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan UniversityChengduChina
| | | | - Quan Yuan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral Implantology, West China Hospital of Stomatology, Sichuan UniversityChengduChina
| | - Chenchen Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan UniversityChengduChina
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Kumari KS, Dixit S, Gaur M, Behera DU, Dey S, Sahoo RK, Dash P, Subudhi E. Taxonomic Assignment-Based Genome Reconstruction from Apical Periodontal Metagenomes to Identify Antibiotic Resistance and Virulence Factors. LIFE (BASEL, SWITZERLAND) 2023; 13:life13010194. [PMID: 36676144 PMCID: PMC9861942 DOI: 10.3390/life13010194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/30/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023]
Abstract
Primary apical periodontitis occurs due to various insults to the dental pulp including microbial infections, physical and iatrogenic trauma, whereas inadequate elimination of intraradicular infection during root canal treatment may lead to secondary apical periodontitis. We explored the complex intra-radicular microbial communities and their functional potential through genome reconstruction. We applied shotgun metagenomic sequencing, binning and functional profiling to identify the significant contributors to infection at the acute and chronic apical periodontal lesions. Our analysis revealed the five classified clusters representing Enterobacter, Enterococcus, Lacticaseibacillus, Pseudomonas, Streptococcus and one unclassified cluster of contigs at the genus level. Of them, the major contributors were Pseudomonas, with 90.61% abundance in acute conditions, whereas Enterobacter followed by Enterococcus with 69.88% and 15.42% abundance, respectively, in chronic conditions. Enterobacter actively participated in antibiotic target alteration following multidrug efflux-mediated resistance mechanisms, predominant in the chronic stage. The prediction of pathways involved in the destruction of the supportive tissues of the tooth in Enterobacter and Pseudomonas support their crucial role in the manifestation of respective disease conditions. This study provides information about the differential composition of the microbiome in chronic and acute apical periodontitis. It takes a step to interpret the role of a single pathogen, solely or predominantly, in establishing endodontic infection types through genome reconstruction following high throughput metagenomic DNA analysis. The resistome prediction sheds a new light on the therapeutic treatment guidelines for endodontists. However, it needs further conclusive research to support this outcome using a larger number of samples with similar etiological conditions, but different demographic origin.
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Affiliation(s)
- K. Swapna Kumari
- Institute of Dental Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, India
| | - Sangita Dixit
- Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, India
| | - Mahendra Gaur
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, India
- Department of Biotechnology, Punjabi University, Patiala 147002, India
| | - Dibyajyoti Uttameswar Behera
- Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, India
| | - Suchanda Dey
- Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, India
| | - Rajesh Kumar Sahoo
- Institute of Dental Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, India
| | - Patitapaban Dash
- Institute of Dental Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, India
| | - Enketeswara Subudhi
- Institute of Dental Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, India
- Correspondence: ; Tel.: +91-9861075829
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Rodríguez López MA. [Maxillary sinus lesions and their association with apical lesions observed by cone beam computed tomography. A retrospective cross-sectional study]. REVISTA CIENTÍFICA ODONTOLÓGICA 2023; 11:e139. [PMID: 38288317 PMCID: PMC10810065 DOI: 10.21142/2523-2754-1101-2023-139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/30/2023] [Indexed: 01/31/2024] Open
Abstract
Introduction Through cone beam computed tomography, alterations in the maxillary sinuses, such as opacities, space occupation and thickening of the mucosa, can be observed. Some factors contribute to this thickening, standing out among dental factors, periodontitis, apical pathology and endodontic treatments. Objective To evaluate the association between changes observed in the maxillary sinuses and apical lesions using cone beam computed tomography. Materials and methods It was a descriptive study with a retrospective and cross-sectional, correlational, field, non-experimental design. The sample consisted of 115 tomographic volumes obtained using Planmeca ProMax 3D Classic equipment (Planmeca, Helsinki, Finland). The presence/absence of endodontic treatment in the present posterior teeth, presence/absence of periapical lesion associated with these teeth, the size of the periapical lesion, presence/absence of alteration in the maxillary sinus and its thickness were evaluated. Results Apical lesions were observed that averaged a size of 3.32 ± 1.82 mm, and almost half (44.35%) presented between 2 and 4 mm in size. The main alteration of the maxillary sinus that was observed was the thickening of the mucosa (58.26%). The average thickness of the thickening of the sinus mucosa was 3.51 ± 1.78 mm, with 72.17% of the cases with thickening greater than 2 mm. Conclusion There was an association between the changes observed in the maxillary sinuses and apical lesions. The larger and closer the lesion was to the sinus, the greater the thickening of the sinus mucosa.
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Affiliation(s)
- Manuela Alejandra Rodríguez López
- Facultad de Odontología, Universidad de Carabobo. Carabobo, Venezuela. Universidad de Carabobo Facultad de Odontología Universidad de Carabobo Carabobo Venezuela
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Melatonin decreases IRF-3 protein expression in the gastrocnemius muscle, reduces IL-1β and LPS plasma concentrations, and improves the lipid profile in rats with apical periodontitis fed on a high-fat diet. Odontology 2022:10.1007/s10266-022-00782-w. [PMID: 36567367 DOI: 10.1007/s10266-022-00782-w] [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: 09/24/2022] [Accepted: 12/14/2022] [Indexed: 12/26/2022]
Abstract
To evaluate the effects of melatonin (MEL) on the expression of toll-like receptor-4 (TLR4); myeloid differentiation primary response protein-88 (MyD88); TIR-domain-containing adapter-inducing interferon-β (TRIF); IFN regulatory-factor-3 (IRF-3); nuclear factor kappa-B (NF-κB); plasma concentrations of interleukin-1β (IL-1β) and lipopolysaccharide (LPS); and lipid profile of rats with apical periodontitis (AP) fed on a high-fat diet (HFD). Eighty 60-day-old rats were divided into eight groups: control, AP, HFD, HFDAP, CNMEL, APMEL, HFDMEL and HFDAPMEL. HFD groups were fed on a HFD for 107 days. On day 7, experimental AP was induced in the AP groups, and after 70 days, MEL (5 mg/kg) was administered to the MEL groups for 30 days. Plasma concentrations of LPS and IL-1β were analyzed using enzyme-linked immunosorbent assay, and the lipid profile was analyzed using biochemical tests. The expression of proteins involved in the TLR4 pathway (TLR4, MyD88, TRIF, IRF-3 and NF-κB) in the gastrocnemius muscle (GM) was evaluated using western blotting and qRT-PCR. Treatment with MEL decreased IRF-3 protein expression in GM and IL-1β plasma concentration in the APMEL and HFDMEL groups. Reduction in LPS plasma concentration was reported only in the HFDMEL group. Additionally, a decrease in LDL and an increase in HDL were observed in the HFDMEL and HFDAPMEL groups. Treatment with MEL exhibited anti-inflammatory and anti-hyperlipidemic effects attributed to HFD and AP by reducing the plasma concentrations of IL-1β and LPS in addition to reducing IRF-3 protein expression in the GM, which is associated with the production of inflammatory cytokines.
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Plasma Rich in Growth Factors in the Treatment of Endodontic Periapical Lesions in Adult Patients: 3-Dimensional Analysis Using Cone-Beam Computed Tomography on the Outcomes of Non-Surgical Endodontic Treatment Using A-PRF+ and Calcium Hydroxide: A Retrospective Cohort Study. J Clin Med 2022; 11:jcm11206092. [PMID: 36294413 PMCID: PMC9605098 DOI: 10.3390/jcm11206092] [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: 09/07/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 01/24/2023] Open
Abstract
The study presents results of periapical lesion healing after one-visit root canal treatment (RCT) with Advanced Platelet Rich Fibrin plus (A-PRF+) application compared to a two-visit RCT with an inter-appointment calcium hydroxide filling. The comparison was made based on CBCT-Periapical Index (PAI) lesion volume changes and the occurrence of post endodontic pain. The results of 3D radiographic healing assessments based on volume reduction criteria were different from the CBCT-PAI. Based on volume changes, the healing assessment criteria-9 cases from the Study Group and six cases in the Control Group were defined as healed. Based on the CBCT-PAI healing assessment criteria, 8 cases from the Study Group and 9 cases from the Control Group were categorized as healed. The volumes of apical radiolucency were, on average, reduced by 85.93% in the Study Group and by 72.31% in the Control Group. Post-endodontic pain occurred more frequently in the Control than in the Study Group. The highest score of pain in the Study Group was five (moderate pain, n = 1), while in the Control Group, the highest score was eight (severe pain, n = 2). In the 6-month follow-up, CBCT scans showed a better healing tendency for patients in the Study Group.
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Tazawa K, Azuma Presse MM, Furusho H, Stashenko P, Sasaki H. Revisiting the role of IL-1 signaling in the development of apical periodontitis. FRONTIERS IN DENTAL MEDICINE 2022; 3:985558. [PMID: 36938490 PMCID: PMC10021022 DOI: 10.3389/fdmed.2022.985558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Apical periodontitis (AP) develops as a result of an immune response to pulpal bacterial infection, and various cytokines are involved in the pathogenesis of AP, with Interleukin (IL)-1 being considered a key cytokine. The role of IL-1 in the pathogenesis of AP has been well studied. It is known that IL-1 expression in periapical lesions correlates closely with the development of AP. IL-1 is a potent bone-resorptive cytokine that induces osteoclast formation and activation. Hence, inhibiting its signaling with IL-1 receptor antagonist (IL-1RA) results in a reduction in periapical lesion size. On the other hand, IL-1 is also a central cytokine that combats bacterial infection by activating innate immune responses. Therefore, a complete loss of IL-1 signaling leads to a failure to limit bacterial dissemination and consequently exacerbates AP. In vivo, IL-1 expression is tightly regulated and its signaling is modulated to optimize the immune response. Obesity causes systemic low-grade chronic inflammation and increases the risk of cardiovascular, renal, and other disorders. In experimentally induced AP, obesity significantly increases periapical bone loss, albeit the underlying mechanism remains unclear. Recent technological innovations have enabled more comprehensive and detailed analyses than previously, leading to new insights into the role of IL-1RA in regulating IL-1 signaling, and modulating apical lesion progression in obesity. In this review, we provide a brief overview of the function of IL-1 in AP development, with special emphasis on the latest findings in normal weight and obese states.
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Affiliation(s)
- Kento Tazawa
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI, United States
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Mariane Maffei Azuma Presse
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Hisako Furusho
- Department of Oral and Maxillofacial Pathobiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Philip Stashenko
- Department of Translational Dental Medicine and Department of Endodontics, Boston University Goldman School of Dental Medicine, Boston, MA, United States
| | - Hajime Sasaki
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI, United States
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20
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Hussein H, Kishen A. Application of Proteomics in Apical Periodontitis. FRONTIERS IN DENTAL MEDICINE 2022. [DOI: 10.3389/fdmed.2022.814603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Apical periodontitis is an inflammatory reaction of the periradicular tissues as a consequence of multispecies microbial communities organized as biofilms within the root canal system. Periradicular tissue changes at the molecular level initiate and orchestrate the inflammatory process and precede the presentation of clinical symptoms. Inflammatory mediators have been studied at either the proteomic, metabolomic, or transcriptomic levels. Analysis at the protein level is the most common approach used to identify and quantify analytes from diseased periradicular tissues during root canal treatment, since it is more representative of definitive and active periradicular inflammatory mediator than its transcript expression level. In disease, proteins expressed in an altered manner could be utilized as biomarkers. Biomarker proteins in periradicular tissues have been qualitatively and quantitatively assessed using antibodies (immunoassays and immunostaining) or mass spectrometry-based approaches. Herein, we aim to provide a comprehensive understanding of biomarker proteins identified in clinical studies investigating periradicular lesions and pulp tissue associated with apical periodontitis using proteomics. The high throughput mass spectrometry-based proteomics has the potential to improve the current methods of monitoring inflammation while distinguishing between progressive, stable, and healing lesions for the identification of new diagnostic and therapeutic targets. This method would provide more objective tools to (a) discover biomarkers related to biological processes for better clinical case selection, and (b) determine tissue response to novel therapeutic interventions for more predictable outcomes in endodontic treatment.
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21
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Hussein H, Kishen A. Proteomic profiling reveals engineered chitosan nanoparticles mediated cellular crosstalk and immunomodulation for therapeutic application in apical periodontitis. Bioact Mater 2021; 11:77-89. [PMID: 34938914 PMCID: PMC8665264 DOI: 10.1016/j.bioactmat.2021.09.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/22/2021] [Accepted: 09/13/2021] [Indexed: 12/18/2022] Open
Abstract
Macrophages (MQ) are major constituents of chronically inflamed periapical tissues in apical periodontitis. This study aimed to investigate the immunomodulatory effect of engineered bioactive chitosan-based nanoparticles (CSnp) antibiofilm medication on MQ cocultured with periodontal ligament fibroblasts (PdLF). Cells viability, spreading, PdLF migration, and intracellular CSnp uptake were characterized. Tandem Mass Tag-based proteomics was applied to analyze MQ global protein expression profiles after interaction with Enterococcus faecalis biofilm, CSnp-treated biofilm, and CSnp. Secreted inflammatory mediators were analyzed. Following bioinformatics analyses, candidate proteins were validated via targeted proteomics. CSnp maintained cells viability, increased MQ spreading, and PdLF migration (p < 0.05). Transmission electron micrographs demonstrated CSnp internalization via macropinocytosis, clathrin-mediated endocytosis, and phagocytosis. Proteomic analysis revealed that CSnp-treated biofilm upregulated proteins (>1.5-folds, p < 0.05) showed functional enrichment in the pathway of metal sequestration by antimicrobial proteins, while downregulated proteins showed enrichment in ferroptosis. CSnp upregulated proteins exhibiting antioxidant and immunoregulatory properties. Upregulation of SERPINB1 by CSnp (>1.5-folds, p < 0.05) was validated. CSnp-treated biofilm reduced pro-inflammatory IL-1β and nitric oxide but enhanced anti-inflammatory IL-10 and TGF-β1 (p < 0.05). Internalized engineered bioactive CSnp reprogrammed MQ proteomic and cytokine profiles to modulate biofilm-mediated inflammation, and prompted PdLF migration, emphasizing its potential to regulate healing process in the treatment of apical periodontitis. CSnp internalized via macropinocytosis, clathrin-mediated endocytosis, and phagocytosis. Enterococcus faecalis biofilm altered macrophage proteomic profile. Macrophage proteome upon CSnp-treated biofilm interaction was distinct from biofilm. CSnp upregulated proteins with immunoregulatory and antioxidant activities. CSnp reduced proinflammatory but increased anti-inflammatory mediators.
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Affiliation(s)
- Hebatullah Hussein
- The Kishen Lab, Dental Research Institute, University of Toronto, Toronto, ON M5G 1G6, Canada.,Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada.,Faculty of Dentistry, Ain Shams University, Endodontics Department, Cairo, Egypt
| | - Anil Kishen
- The Kishen Lab, Dental Research Institute, University of Toronto, Toronto, ON M5G 1G6, Canada.,Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada.,School of Graduate Studies, University of Toronto, Toronto, ON M5G 1G6, Canada.,Department of Dentistry, Mount Sinai Health System, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
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22
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Plasma Rich in Growth Factors in the Treatment of Endodontic Periapical Lesions in Adult Patients: A Narrative Review. Pharmaceuticals (Basel) 2021; 14:ph14101041. [PMID: 34681265 PMCID: PMC8539488 DOI: 10.3390/ph14101041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 10/12/2021] [Indexed: 02/07/2023] Open
Abstract
Platelet concentrates have been widely used in regenerative medicine, including endodontics. The aim of this manuscript was to assess critically the efficacy of PRF in the treatment of endodontic periapical lesions in adult patients on the basis of the literature. The PICO approach was used to properly develop literature search strategies. The PubMed database was analyzed with the keywords: "((PRP) OR (PRF) OR (PRGF) OR (CGF)) AND (endodontic) AND ((treatment) OR (therapy))". After screening of 155 results, 14 articles were included in this review. Different types of platelet concentrates are able to stimulate the processes of proliferation and differentiation of mesenchymal stem cells. Platelet rich fibrin (PRF) releases growth factors for at least 7 days at the application site. Growth factors and released cytokines stimulate the activity of osteoblasts. Moreover, the release of growth factors accelerates tissue regeneration by increasing the migration of fibroblasts. It was not possible to assess the efficacy of PRF supplementation in the treatment of endodontic periapical lesions in permanent, mature teeth with closed apexes, due to the lack of well-designed scientific research. Further studies are needed to analyze the effect of PRF on the healing processes in the periapical region.
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23
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Wu X, Fan W, Fan B. Synergistic effects of silver ions and metformin against enterococcus faecalis under high-glucose conditions in vitro. BMC Microbiol 2021; 21:261. [PMID: 34587895 PMCID: PMC8482635 DOI: 10.1186/s12866-021-02291-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/04/2021] [Indexed: 12/22/2022] Open
Abstract
Background This study aimed to evaluate the synergistic antibacterial activities of silver ions (Ag+) and metformin hydrochloride (Met) against Enterococcus faecalis (E. faecalis) under normal or high-glucose conditions. Results The minimum inhibitory concentration, minimum bactericidal concentration, growth curves, and colony-forming units were used to evaluate the antibacterial effects of Ag+ and Met on planktonic E. faecalis in Brain Heart Infusion broth with or without additional glucose. The influences of Ag+ and Met on four weeks E. faecalis biofilm on human dentin slices was also tested. Cytotoxicity was tested on MC3T3-E1 osteoblastic cells using CCK-8 assays. The results indicated that E. faecalis showed higher resistance to drug treatment under high-glucose conditions. Ag+ (40 μg/mL) plus Met (3.2% or 6.4%) showed enhanced antibacterial activities against both planktonic E. faecalis and biofilm on dentin slices, with low cytotoxicity. Conclusions Met enhanced the bactericidal effects of Ag+ against both planktonic and biofilm E. faecalis under normal or high-glucose conditions with low cytotoxicity. Further molecular studies are needed to be conducted to understand the mechanisms underlying the synergistic activity between Met and Ag+. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02291-2.
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Affiliation(s)
- Xuying Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Wei Fan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China.
| | - Bing Fan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China.
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24
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Plemmenos G, Evangeliou E, Polizogopoulos N, Chalazias A, Deligianni M, Piperi C. Central Regulatory Role of Cytokines in Periodontitis and Targeting Options. Curr Med Chem 2021; 28:3032-3058. [PMID: 32838709 DOI: 10.2174/0929867327666200824112732] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Periodontitis is an immune-inflammatory disease that leads to the progressive destruction of bone and connective tissue in the periodontal area. The cytokine network plays a primary role in tissue homeostasis, the recruitment of immune cells to control the pathogenic impact and the regulation of osteoclastic function, thus modulating the intensity and duration of the immune response. This review provides an update on the main cytokines implicated in the pathogenesis and progression of periodontitis and their targeting potential in order to enrich current treatment options. METHODS A structured search of bibliographic databases (PubMed, MEDLINE, Scopus) was performed for peer-reviewed cytokine studies focused on periodontitis the last ten years. A qualitative content analysis was performed in screened papers and a critical discussion of main findings is provided. RESULTS An altered cytokine profile has been detected in periodontitis patients and the interplay of pro-inflammatory and/or anti-inflammatory cytokines has been associated with disease pathogenesis. Among the most prominent pro-inflammatory cytokines, TNF-α, IL-1β, IL-17, IL-6 and the chemokines CXCL-6, CXCL-8 are overexpressed in periodontitis patients and correlate with disease progression. On the other hand, the anti-inflammatory IL-4 and IL- 11 levels are reduced while IL-12 and IFN-γ expression play a dual role in periodontal disease. Current periodontitis treatment strategies include selective antibiotics, antimicrobial photodynamic therapy and probiotics, which can modulate the cytokine network and when applied in combination with specific anti-cytokine agents can exert additional beneficial effects. CONCLUSION It is evident that cytokines play a central regulatory role in the inflammatory process and immune cell response that underlies bone destruction in periodontitis. Specific cytokine targeting should be considered as a complementary therapeutic scheme to current periodontal management.
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Affiliation(s)
- Grigorios Plemmenos
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
| | - Evangelos Evangeliou
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
| | - Nikolaos Polizogopoulos
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
| | - Andreas Chalazias
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
| | - Marianthi Deligianni
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
| | - Christina Piperi
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
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25
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Ribeiro-Santos FR, Arnez MFM, de Carvalho MS, da Silva RAB, Politi MPL, de Queiroz AM, Nelson-Filho P, da Silva LAB, Faccioli LH, Paula-Silva FWG. Effect of non-steroidal anti-inflammatory drugs on pulpal and periapical inflammation induced by lipopolysaccharide. Clin Oral Investig 2021; 25:6201-6209. [PMID: 33791868 DOI: 10.1007/s00784-021-03919-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 03/28/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The objective of this study was to evaluate the effect of non-steroidal anti-inflammatory drugs (NSAIDs) in controlling pulpal and periapical inflammation in vivo as a potential coadjutant systemic therapy for pulpitis. MATERIALS AND METHODS A suspension containing E. coli lipopolysaccharide (LPS; 1.0 μg/μL) was inoculated into the pulp chamber of the first molars of C57BL/6 mice (n = 72), and the animals were treated daily with indomethacin or celecoxib throughout the experimental periods. After 7, 14, 21, and 28 days, the tissues were removed for histopathological, histoenzymology, histometric, and immunohistochemical evaluation. RESULTS Inoculation of LPS into the pulp chamber induced the synthesis of the enzyme cyclooxygenase-2 (COX-2) in dental pulp and periapical region. Indomethacin and celecoxib treatment changed the profile of inflammatory cells recruited to dental pulp and to the periapex, which was characterized by a higher mononuclear cell infiltrate, compared to LPS inoculation alone which recruited a higher amount of polymorphonuclear neutrophils. Administration of indomethacin for 28 days resulted in the development of apical periodontitis and increased osteoclast recruitment, unlike celecoxib. CONCLUSIONS NSAIDs indomethacin and celecoxib changed the recruitment of inflammatory cells to a mononuclear profile upon inoculation of LPS into the pup chamber, but indomethacin enhanced periapical bone loss whereas celecoxib did not. CLINICAL RELEVANCE Celecoxib, a selective COX-2 inhibitor, can change the profile of inflammatory cells recruited to the dental pulp challenged with LPS and might a be potential systemic coadjutant for treatment of pulpitis.
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Affiliation(s)
- Fernanda Regina Ribeiro-Santos
- School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. CEP 14040-904, Ribeirão Preto, São Paulo, Brazil
- Universidade de Pernambuco, Arco Verde, Pernambuco, Brazil
| | - Maya Fernanda Manfrin Arnez
- School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. CEP 14040-904, Ribeirão Preto, São Paulo, Brazil
| | - Marcio Santos de Carvalho
- School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. CEP 14040-904, Ribeirão Preto, São Paulo, Brazil
| | - Raquel Assed Bezerra da Silva
- School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. CEP 14040-904, Ribeirão Preto, São Paulo, Brazil
| | - Marília Pacífico Lucisano Politi
- School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. CEP 14040-904, Ribeirão Preto, São Paulo, Brazil
| | - Alexandra Mussolino de Queiroz
- School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. CEP 14040-904, Ribeirão Preto, São Paulo, Brazil
| | - Paulo Nelson-Filho
- School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. CEP 14040-904, Ribeirão Preto, São Paulo, Brazil
| | - Léa Assed Bezerra da Silva
- School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. CEP 14040-904, Ribeirão Preto, São Paulo, Brazil
| | - Lúcia Helena Faccioli
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Francisco Wanderley Garcia Paula-Silva
- School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. CEP 14040-904, Ribeirão Preto, São Paulo, Brazil.
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil.
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26
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Pérez-Serrano RM, Soza-Bolaños AI, Castillo-Valdés SN, Hernández-Valdez G, Mora-Izaguirre O, González-Dávalos ML, Dammaschke T, Domínguez-Pérez RA. Endodontic set sealer eluates promote cytokine production in human mononuclear and periodontal ligament cells. AUST ENDOD J 2021; 47:415-422. [PMID: 33650775 DOI: 10.1111/aej.12493] [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: 08/28/2020] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 11/30/2022]
Abstract
Endodontic freshly mixed sealers display toxic effects; however, these are significantly reduced and most become relatively inert in the set state but there is no information about the possible inflammatory reaction promoted by them. Four contemporary and different formulated endodontic set sealers (MTA Fillapex, BioRoot RCS, AH Plus, and Pulp Canal Sealer) were evaluated. Human periodontal ligament cells and human peripheral blood mononuclear cells were stimulated for 3, 6, 12 and 24 h. Interleukin-6, tumour necrosis factor-alpha, interleukin-8 and interleukin-10 concentrations were measured by enzyme-linked immunosorbent assay. All endodontic set sealer eluates promoted a similar production (P ˃ 0.05) of the four cytokines. However, their concentrations decreased within a short time period to nearly undetectable concentrations after 24 h, suggesting that the studied endodontic set sealers do not possess inflammatory properties which has favoured their long-term use in clinical practice.
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Affiliation(s)
- Rosa M Pérez-Serrano
- Endodontic Specialization Program, Facultad de Medicina, Universidad Autónoma de Querétaro, Santiago de Querétaro, Mexico.,Laboratorio de Investigación Odontológica Multidisciplinaria, Facultad de Medicina, Universidad Autónoma de Querétaro, Santiago de Queretaro, Mexico
| | - Ana I Soza-Bolaños
- Endodontic Specialization Program, Facultad de Medicina, Universidad Autónoma de Querétaro, Santiago de Querétaro, Mexico
| | - Samantha N Castillo-Valdés
- Endodontic Specialization Program, Facultad de Medicina, Universidad Autónoma de Querétaro, Santiago de Querétaro, Mexico
| | - Gabriela Hernández-Valdez
- Endodontic Specialization Program, Facultad de Medicina, Universidad Autónoma de Querétaro, Santiago de Querétaro, Mexico
| | | | | | - Till Dammaschke
- Department of Periodontology and Operative Dentistry, Westphalian Wilhelms-University, Münster, Germany
| | - Rubén A Domínguez-Pérez
- Endodontic Specialization Program, Facultad de Medicina, Universidad Autónoma de Querétaro, Santiago de Querétaro, Mexico.,Laboratorio de Investigación Odontológica Multidisciplinaria, Facultad de Medicina, Universidad Autónoma de Querétaro, Santiago de Queretaro, Mexico
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Association between Maxillary Posterior Teeth Periapical Odontogenic Lesions and Maxillary Sinus Mucosal Thickening: A 3D Volumetric Computed Tomography Analysis. SINUSITIS 2020. [DOI: 10.3390/sinusitis4010003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Background: The detailed relationship between apical periodontitis and maxillary sinus mucosal thickening is still unknown. The aim of this study was to evaluate the association between maxillary posterior teeth periapical odontogenic lesions and maxillary sinus mucosal (MSM) thickening by using volumetric 3D CT analysis. Methods: A total of 83 subjects with apical periodontitis around maxillary posterior teeth and maxillary sinus mucosal thickening were selected. 3D models of maxillary sinus mucosa and apical lesions were reconstructed from CT, and their volume, mean diameter were calculated. Results: Mean MSM thickening was 8.81 ± 12.59 mm with an average volume of 5092.58 ± 7435.38 mm3. Men had higher MSM thickening than women. Mean diameter of apical lesion was 5.94 ± 2.68 mm; average volume was 200.5 ± 197.29 mm3. Mean distance between MSM and apical lesion was 1.83 ± 2.07 mm. Mucosal volume was the highest in the S1 and D1 configuration and the lowest in R3. Reducing the distance between apical lesion and MSM by each millimetre, the volume of MSM increases by 759.99 mm3. Conclusions: Volumetric CT analysis is a circumstantial method to evaluate the association between maxillary posterior teeth apical periodontitis and MSM thickening. This relationship is not related to the size of the apical lesion but depends on their anatomical position and the distance from the maxillary sinus mucosa.
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28
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Park OJ, Kwon Y, Park C, So YJ, Park TH, Jeong S, Im J, Yun CH, Han SH. Streptococcus gordonii: Pathogenesis and Host Response to Its Cell Wall Components. Microorganisms 2020; 8:microorganisms8121852. [PMID: 33255499 PMCID: PMC7761167 DOI: 10.3390/microorganisms8121852] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 02/08/2023] Open
Abstract
Streptococcus gordonii, a Gram-positive bacterium, is a commensal bacterium that is commonly found in the skin, oral cavity, and intestine. It is also known as an opportunistic pathogen that can cause local or systemic diseases, such as apical periodontitis and infective endocarditis. S. gordonii, an early colonizer, easily attaches to host tissues, including tooth surfaces and heart valves, forming biofilms. S. gordonii penetrates into root canals and blood streams, subsequently interacting with various host immune and non-immune cells. The cell wall components of S. gordonii, which include lipoteichoic acids, lipoproteins, serine-rich repeat adhesins, peptidoglycans, and cell wall proteins, are recognizable by individual host receptors. They are involved in virulence and immunoregulatory processes causing host inflammatory responses. Therefore, S.gordonii cell wall components act as virulence factors that often progressively develop diseases through overwhelming host responses. This review provides an overview of S. gordonii, and how its cell wall components could contribute to the pathogenesis and development of therapeutic strategies.
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Affiliation(s)
- Ok-Jin Park
- Department of Oral Microbiology and Immunology, School of Dentistry, Dental Research Institute, Seoul National University, Seoul 08826, Korea; (O.-J.P.); (Y.K.); (C.P.); (Y.J.S.); (T.H.P.); (S.J.); (J.I.)
| | - Yeongkag Kwon
- Department of Oral Microbiology and Immunology, School of Dentistry, Dental Research Institute, Seoul National University, Seoul 08826, Korea; (O.-J.P.); (Y.K.); (C.P.); (Y.J.S.); (T.H.P.); (S.J.); (J.I.)
| | - Chaeyeon Park
- Department of Oral Microbiology and Immunology, School of Dentistry, Dental Research Institute, Seoul National University, Seoul 08826, Korea; (O.-J.P.); (Y.K.); (C.P.); (Y.J.S.); (T.H.P.); (S.J.); (J.I.)
| | - Yoon Ju So
- Department of Oral Microbiology and Immunology, School of Dentistry, Dental Research Institute, Seoul National University, Seoul 08826, Korea; (O.-J.P.); (Y.K.); (C.P.); (Y.J.S.); (T.H.P.); (S.J.); (J.I.)
| | - Tae Hwan Park
- Department of Oral Microbiology and Immunology, School of Dentistry, Dental Research Institute, Seoul National University, Seoul 08826, Korea; (O.-J.P.); (Y.K.); (C.P.); (Y.J.S.); (T.H.P.); (S.J.); (J.I.)
| | - Sungho Jeong
- Department of Oral Microbiology and Immunology, School of Dentistry, Dental Research Institute, Seoul National University, Seoul 08826, Korea; (O.-J.P.); (Y.K.); (C.P.); (Y.J.S.); (T.H.P.); (S.J.); (J.I.)
| | - Jintaek Im
- Department of Oral Microbiology and Immunology, School of Dentistry, Dental Research Institute, Seoul National University, Seoul 08826, Korea; (O.-J.P.); (Y.K.); (C.P.); (Y.J.S.); (T.H.P.); (S.J.); (J.I.)
| | - Cheol-Heui Yun
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea;
- Institute of Green Bio Science Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Seung Hyun Han
- Department of Oral Microbiology and Immunology, School of Dentistry, Dental Research Institute, Seoul National University, Seoul 08826, Korea; (O.-J.P.); (Y.K.); (C.P.); (Y.J.S.); (T.H.P.); (S.J.); (J.I.)
- Correspondence: ; Tel.: +82-2-880-2310
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29
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The use of host defense peptides in root canal therapy in rats. Clin Oral Investig 2020; 25:3623-3632. [PMID: 33200281 DOI: 10.1007/s00784-020-03684-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/06/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVES In order to evaluate host defense peptides (HDPs) HHC-10 and synoeca-MP activity in in vitro osteoclastogenesis process and in vivo induced apical periodontitis, testing the effect of molecules in the inflammatory response and in apical periodontitis size/volume after root canal treatment. MATERIALS AND METHODS In vitro osteoclastogenesis was assessed on bone marrow cell cultures extracted from mice, while in vivo endodontic treatment involved rats treated with Ca(OH)2 or HDPs. In vitro osteoclasts were subjected to TRAP staining, and in vivo samples were evaluated by radiographic and tomographic exams, as well as histologic analysis. RESULTS None of the substances downregulated the in vitro osteoclastogenesis. Nevertheless, all treatments affected the average of apical periodontitis size in rats, although only teeth treated with HDPs demonstrated lower levels of the inflammatory process. These results demonstrated the in vivo potential of HDPs. Radiographic analysis suggested that HHC-10 and synoeca-MP-treated animals presented a similar lesion size than Ca(OH)2-treated animals after 7-day of endodontic treatment. However, tomography analysis demonstrated smaller lesion volume in synoeca-MP-treated animals than HHC-10 and Ca(OH)2-treated animals, after 7 days. CONCLUSIONS These molecules demonstrated an auxiliary effect in endodontic treatment that might be related to its immunomodulatory ability, broad-spectrum antimicrobial activity, and possible induction of tissue repair at low concentrations. These results can encourage further investigations on the specific mechanisms of action in animal models to clarify the commercial applicability of these biomolecules for endodontic treatment. CLINICAL SIGNIFICANCE HDPs have the potential to be adjuvant substances in endodontic therapy due to its potential to reduce inflammation in apical periodontitis.
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30
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Cilmiaty R, Pribadi N, Rukmo M, Surboyo MDC. The NFκB Expression on Apical Dental Granuloma: An Immunohistochemistry Analysis. Clin Cosmet Investig Dent 2020; 12:313-318. [PMID: 32848477 PMCID: PMC7425096 DOI: 10.2147/ccide.s256284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/16/2020] [Indexed: 11/23/2022] Open
Abstract
Background Endodontic treatment on dental caries with dental granuloma on the periapical has the potential to flare. The symptoms of acute flare in dental granuloma are strongly related to the activation of macrophages that produce pro-inflammatory cytokine through nuclear factor kappa B (NFκB). However, the role of NFκB in dental granuloma has not been widely explained. Purpose To compare NFκB expression in dental granuloma and dental nongranuloma in the periapical of dental caries. Methods The periapical lesion of dental granuloma and dental nongranuloma was obtained from patients with dental caries who were subjected to tooth extraction. The periapical lesion was confirmed by periapical radiography and then differentiated by histological and immunohistochemistry by analyzing the NFκB expression. Results Most dental granulomas were found in females (66.67%) between the ages 36 and 45 (61.11%). Dental granuloma showed higher NFκB expression compared to dental nongranuloma lesions in tooth caries (p=0.021). Conclusion The dental granuloma tissue of dental caries showed an increase in NFκB expression. Understanding the role of NFκB might provide additional insights into the process of periapical lesion development.
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Affiliation(s)
- Risya Cilmiaty
- Department of Oral Disease, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Indonesia
| | - Nirawati Pribadi
- Department of Conservative Dentistry, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Mandojo Rukmo
- Department of Conservative Dentistry, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
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Paula-Silva FWG, Ribeiro-Santos FR, Petean IBF, Manfrin Arnez MF, Almeida-Junior LAD, Carvalho FKD, Silva LABD, Faccioli LH. Root canal contamination or exposure to lipopolysaccharide differentially modulate prostaglandin E 2 and leukotriene B 4 signaling in apical periodontitis. J Appl Oral Sci 2020; 28:e20190699. [PMID: 32401938 PMCID: PMC7213784 DOI: 10.1590/1678-7757-2019-0699] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 02/28/2020] [Indexed: 12/18/2022] Open
Abstract
Purpose To evaluate the kinetics of apical periodontitis development
in vivo
, induced either by contamination of the root canals by microorganisms from the oral cavity or by inoculation of bacterial lipopolysaccharide (LPS) and the regulation of major enzymes and receptors involved in the arachidonic acid metabolism. Methodology Apical periodontitis was induced in C57BL6 mice (n=96), by root canal exposure to oral cavity (n=48 teeth) or inoculation of LPS (10 µL of a suspension of 0.1 µg/µL) from
E. coli
into the root canals (n= 48 teeth). Healthy teeth were used as control (n=48 teeth). After 7, 14, 21 and 28 days the animals were euthanized and tissues removed for histopathological and qRT-PCR analyses. Histological analysis data were analyzed using two-way ANOVA followed by Sidak’s test, and qRT-PCR data using two-way ANOVA followed by Tukey’s test (α=0.05). Results Contamination by microorganisms led to the development of apical periodontitis, characterized by the recruitment of inflammatory cells and bone tissue resorption, whereas inoculation of LPS induced inflammatory cells recruitment without bone resorption. Both stimuli induced mRNA expression for cyclooxygenase-2 and 5-lipoxygenase enzymes. Expression of prostaglandin E 2 and leukotriene B 4 cell surface receptors were more stimulated by LPS. Regarding nuclear peroxisome proliferator-activated receptors (PPAR), oral contamination induced the synthesis of mRNA for PPARδ, differently from inoculation of LPS, that induced PPARα and PPARγ expression. Conclusions Contamination of the root canals by microorganisms from oral cavity induced the development of apical periodontitis differently than by inoculation with LPS, characterized by less bone loss than the first model. Regardless of the model used, it was found a local increase in the synthesis of mRNA for the enzymes 5-lipoxygenase and cyclooxygenase-2 of the arachidonic acid metabolism, as well as in the surface and nuclear receptors for the lipid mediators prostaglandin E2 and leukotriene B4.
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Affiliation(s)
| | - Fernanda Regina Ribeiro-Santos
- Departamento de Clínica Infantil, Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Igor Bassi Ferreira Petean
- Departamento de Clínica Infantil, Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Maya Fernanda Manfrin Arnez
- Departamento de Clínica Infantil, Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | | | - Fabrício Kitazono de Carvalho
- Departamento de Clínica Infantil, Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Léa Assed Bezerra da Silva
- Departamento de Clínica Infantil, Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Lúcia Helena Faccioli
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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32
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Liu Y, Yang J, Sun W. Upregulation of IL-10 expression inhibits the proliferation of human periodontal ligament stem cells. Braz Oral Res 2020; 34:e030. [PMID: 32236319 DOI: 10.1590/1807-3107bor-2020.vol34.0030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 09/19/2019] [Indexed: 11/22/2022] Open
Abstract
The abnormal increase in proliferation rate of human periodontal ligament stem cells (PDLSCs) is considered to be involved in the pathogenesis of periodontitis, a disease in which the IL-10-mediated anti-inflammatory pathway plays a critical role. This study aimed to investigate the involvement of microRNA-466l in periodontitis and to explore the possible interaction between IL-10 and microRNA-466l. PDLSCs were obtained from periodontitis-affected teeth and healthy control teeth. The expression of microRNA-466l and IL-10 mRNA was measured in PDLSCs using RT-qPCR. The proliferation ability of PDLSCs was analyzed using CCK-8 assays. Overexpression of microRNA-466l in a PDLSC cell line was established using two different types of PDLSCs, and the effect of microRNA-466l overexpression on IL-10 expression and cell proliferation were detected by western blot and CCK-8 assays, respectively. We found that expression levels of microRNA-466l and IL-10 mRNA were significantly lower (P < 0.05) in PDLSCs derived from periodontitis-affected teeth compared to those derived from healthy teeth. However, the cell proliferation ability was significantly higher in the PDLSCs derived from periodontitis-affected teeth. Meanwhile microRNA-466l overexpression decreased cell proliferation rates of both types of PDLSCs and upregulated IL-10 expression. Together, these data suggest that microRNA-466l can upregulate IL-10 and reduce the proliferation rate of PDLSCs.
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Affiliation(s)
- Yu Liu
- Nanjing University, Medical School, Department of Periodontology, Nanjing City, Jiangsu Province, China
| | - Jie Yang
- Nanjing University, Medical School, Department of Periodontology, Nanjing City, Jiangsu Province, China
| | - Weibin Sun
- Nanjing University, Medical School, Department of Periodontology, Nanjing City, Jiangsu Province, China
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33
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Mohaved SB, Shilpa G, Li Q, Austah O, Bendele M, Brock R, Ruparel NB. Apical periodontitis-induced mechanical allodynia: A mouse model to study infection-induced chronic pain conditions. Mol Pain 2020; 16:1744806919900725. [PMID: 31902318 PMCID: PMC6977224 DOI: 10.1177/1744806919900725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Infection-induced chronic pain is an under-studied pain condition. One example is apical periodontitis, which evokes considerable mechanical allodynia that persists after treatment in 7% to 12% of patients. Available analgesics often provide incomplete relief. However, a preclinical model to study pain mechanisms associated with apical periodontitis is not available. Here, we report a mouse model of apical periodontitis to facilitate studies determining mechanisms mediating persistent infection-induced pain. Mice were anesthetized and the left first molar was exposed to the oral environment for six weeks. Bone resorption, as an indicator of apical periodontitis, was quantified using microcomputed tomography. Mechanical allodynia was determined using extraoral von-Frey filaments in both male and female mice. The expression of c-fos in the medullary dorsal horn was assessed using immunohistochemistry. Mice with apical periodontitis developed significant mechanical allodynia by day 7 that was maintained for 42 days. Mechanical thresholds were significantly lower in females compared to males. Administration of ibuprofen, morphine, or MK-801 reversed mechanical allodynia. Finally, apical periodontitis triggered an upregulation of c-fos in the medullary dorsal horn. Collectively, this model simulates signs of clinical pain experienced by patients with apical periodontitis, detects sex differences in allodynia, and permits the study of peripheral and central trigeminal pain mechanisms.
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Affiliation(s)
- Saeed B Mohaved
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Ganatra Shilpa
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Qun Li
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Obadah Austah
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Michelle Bendele
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Robert Brock
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Nikita B Ruparel
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
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34
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Saliva and Serum Immune Responses in Apical Periodontitis. J Clin Med 2019; 8:jcm8060889. [PMID: 31234349 PMCID: PMC6617293 DOI: 10.3390/jcm8060889] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 06/14/2019] [Accepted: 06/17/2019] [Indexed: 12/26/2022] Open
Abstract
Apical periodontitis is an inflammatory reaction at the apex of an infected tooth. Its microbiota resembles that of marginal periodontitis and may induce local and systemic antibodies binding to bacteria- and host-derived epitopes. Our aim was to investigate the features of the adaptive immune response in apical periodontitis. The present Parogene cohort (n = 453) comprises patients with cardiac symptoms. Clinical and radiographic oral examination was performed to diagnose apical and marginal periodontitis. A three-category endodontic lesion score was designed. Antibodies binding to the bacteria- and host-derived epitopes were determined from saliva and serum, and bacterial compositions were examined from saliva and subgingival samples. The significant ORs (95% CI) for the highest endodontic scores were observed for saliva IgA and IgG to bacterial antigens (2.90 (1.01-8.33) and 4.91 (2.48-9.71)/log10 unit), saliva cross-reacting IgG (2.10 (1.48-2.97)), serum IgG to bacterial antigens (4.66 (1.22-10.1)), and Gram-negative subgingival species (1.98 (1.16-3.37)). In a subgroup without marginal periodontitis, only saliva IgG against bacterial antigens associated with untreated apical periodontitis (4.77 (1.05-21.7)). Apical periodontitis associates with versatile adaptive immune responses against both bacterial- and host-derived epitopes independently of marginal periodontitis. Saliva immunoglobulins could be useful biomarkers of oral infections including apical periodontitis-a putative risk factor for systemic diseases.
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35
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Ribeiro-Santos FR, Silva GGD, Petean IBF, Arnez MFM, Silva LABD, Faccioli LH, Paula-Silva FWG. Periapical bone response to bacterial lipopolysaccharide is shifted upon cyclooxygenase blockage. J Appl Oral Sci 2019; 27:e20180641. [PMID: 31166414 PMCID: PMC6546268 DOI: 10.1590/1678-7757-2018-0641] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/17/2018] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES Infection, inflammation and bone resorption are closely related events in apical periodontitis development. Therefore, we sought to investigate the role of cyclooxygenase (COX) in osteoclastogenesis and bone metabolism signaling in periapical bone tissue after bacterial lipopolysaccharide (LPS) inoculation into root canals. METHODOLOGY Seventy two C57BL/6 mice had the root canals of the first molars inoculated with a solution containing LPS from E. coli (1.0 mg/mL) and received selective (celecoxib) or non-selective (indomethacin) COX-2 inhibitor. After 7, 14, 21 and 28 days the animals were euthanized and the tissues removed for total RNA extraction. Evaluation of gene expression was performed by qRT-PCR. Statistical analysis was performed using analysis of variance (ANOVA) followed by post-tests (α=0.05). RESULTS LPS induced expression of mRNA for COX-2 (Ptgs2) and PGE2 receptors (Ptger1, Ptger3 and Ptger4), indicating that cyclooxygenase is involved in periapical response to LPS. A signaling that favours bone resorption was observed because Tnfsf11 (RANKL), Vegfa, Ctsk, Mmp9, Cd36, Icam, Vcam1, Nfkb1 and Sox9 were upregulated in response to LPS. Indomethacin and celecoxib differentially modulated expression of osteoclastogenic and other bone metabolism genes: celecoxib downregulated Igf1r, Ctsk, Mmp9, Cd36, Icam1, Nfkb1, Smad3, Sox9, Csf3, Vcam1 and Itga3 whereas indomethacin inhibited Tgfbr1, Igf1r, Ctsk, Mmp9, Sox9, Cd36 and Icam1. CONCLUSIONS We demonstrated that gene expression for COX-2 and PGE2 receptors was upregulated after LPS inoculation into the root canals. Additionally, early administration of indomethacin and celecoxib (NSAIDs) inhibited osteoclastogenic signaling. The relevance of the cyclooxygenase pathway in apical periodontitis was shown by a wide modulation in the expression of genes involved in both bone catabolism and anabolism.
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Affiliation(s)
- Fernanda Regina Ribeiro-Santos
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Clínica Infantil, Ribeirão Preto, São Paulo, Brasil.,Universidade de Pernambuco, Arco Verde, Pernambuco, Brasil
| | - Geyson Galo da Silva
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Clínica Infantil, Ribeirão Preto, São Paulo, Brasil
| | - Igor Bassi Ferreira Petean
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Clínica Infantil, Ribeirão Preto, São Paulo, Brasil
| | - Maya Fernanda Manfrin Arnez
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Clínica Infantil, Ribeirão Preto, São Paulo, Brasil
| | - Léa Assed Bezerra da Silva
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Clínica Infantil, Ribeirão Preto, São Paulo, Brasil
| | - Lúcia Helena Faccioli
- Universidade de São Paulo, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Laboratório de Inflamação e Imunologia das Parasitoses, Ribeirão Preto, São Paulo, Brasil
| | - Francisco Wanderley Garcia Paula-Silva
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Clínica Infantil, Ribeirão Preto, São Paulo, Brasil.,Universidade de São Paulo, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Laboratório de Inflamação e Imunologia das Parasitoses, Ribeirão Preto, São Paulo, Brasil
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36
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Braz-Silva PH, Bergamini ML, Mardegan AP, De Rosa CS, Hasseus B, Jonasson P. Inflammatory profile of chronic apical periodontitis: a literature review. Acta Odontol Scand 2019; 77:173-180. [PMID: 30585523 DOI: 10.1080/00016357.2018.1521005] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Apical periodontitis caused by root canal infection is the most frequent pathological lesion in the jaws, mainly manifested as periapical granulomas and cysts. Understanding of the formation and progression of apical periodontitis as well as the identification of inflammatory biomarkers can help increase the knowledge of pathogenic mechanisms, improve the diagnosis and provide support for different therapeutic strategies. The objective of the present article is to review inflammatory biomarkers such as cytokines, chemokines, inflammatory cells, neuropeptides, RANK/RANKL/OPG system and other inflammatory markers and to relate these systems to the development and progression of pathological conditions related to apical periodontitis.
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Affiliation(s)
- Paulo Henrique Braz-Silva
- Division of General Pathology, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil
- Laboratory of Virology, Institute of Tropical Medicine of Sao Paulo, University of Sao Paulo, Sao Paulo, Brazil
| | - Mariana Lobo Bergamini
- Division of General Pathology, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil
| | - Andressa Pinto Mardegan
- Division of General Pathology, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil
| | - Catharina Simioni De Rosa
- Division of General Pathology, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil
| | - Bengt Hasseus
- Department of Oral Medicine and Pathology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter Jonasson
- Department of Endodontology, Institute of Odontology The Sahlgrenska Academy University of Gothenburg, Gothenburg, Sweden
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37
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Virdee SS, Butt K, Grant M, Camilleri J, Cooper PR, Tomson PL. A systematic review of methods used to sample and analyse periradicular tissue fluid during root canal treatment. Int Endod J 2019; 52:1108-1127. [DOI: 10.1111/iej.13104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 02/22/2019] [Indexed: 01/01/2023]
Affiliation(s)
- S. S. Virdee
- Department of Restorative Dentistry Institute of Clinical Sciences The University of Birmingham School of Dentistry Birmingham UK
| | - K. Butt
- Department of Restorative Dentistry Institute of Clinical Sciences The University of Birmingham School of Dentistry Birmingham UK
| | - M. Grant
- Department of Restorative Dentistry Institute of Clinical Sciences The University of Birmingham School of Dentistry Birmingham UK
| | - J. Camilleri
- Department of Restorative Dentistry Institute of Clinical Sciences The University of Birmingham School of Dentistry Birmingham UK
| | - P. R. Cooper
- Department of Restorative Dentistry Institute of Clinical Sciences The University of Birmingham School of Dentistry Birmingham UK
| | - P. L. Tomson
- Department of Restorative Dentistry Institute of Clinical Sciences The University of Birmingham School of Dentistry Birmingham UK
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Abstract
Outer membrane vesicles (OMVs) are nanosized proteoliposomes derived from the outer membrane of Gram-negative bacteria. They are ubiquitously produced both in culture and during infection and are now recognized to play crucial roles during host-microbe interactions. OMVs can transport a broad range of chemically diverse cargoes, including lipids and lipopolysaccharides, membrane-embedded and associated proteins and small molecules, peptidoglycan, and nucleic acids. Particularly, virulence factors such as adhesins and toxins are often enriched in OMVs. Here we discuss a variety of ways in which OMVs facilitate host-microbe interactions, including their contributions to biofilm formation, nutrient scavenging, and modulation of host cell function. We particularly examine recent findings regarding OMV-host cell interactions in the oral cavity and the gastrointestinal tract.
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39
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França GMD, Carmo AFD, Costa Neto H, Andrade ALDLD, Lima KCD, Galvão HC. Macrophages subpopulations in chronic periapical lesions according to clinical and morphological aspects. Braz Oral Res 2019; 33:e047. [DOI: 10.1590/1807-3107bor-2019.vol33.0047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 04/29/2019] [Indexed: 12/26/2022] Open
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40
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Bains R, Bains VK. Lesions of endodontic origin: An emerging risk factor for coronary heart diseases. Indian Heart J 2018; 70 Suppl 3:S431-S434. [PMID: 30595303 PMCID: PMC6309294 DOI: 10.1016/j.ihj.2018.07.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 07/06/2018] [Accepted: 07/06/2018] [Indexed: 01/18/2023] Open
Abstract
A high inflammatory state, such as atherosclerosis, is a major underlying cause of coronary heart diseases (CHDs). Inflammatory mediators are known to lead to endothelial dysfunction and play a key role in initiation, progression, and rupture of atherothrombotic plaque. Chronic inflammatory dental infections such as periodontitis and lesions of endodontic origin or chronic apical periodontitis (CAP) may provide an environment conducive for such events. Atherosclerosis has shown to share a common spectrum of inflammatory markers with apical periodontitis. The possible correlation between CHD and CAP is emerging at microbiological, clinical, inflammatory, and molecular levels. This less recognized fact should be discussed more among the dental and medical fraternity so that more awareness and positive approach toward oral health can be created among patients and health-care providers.
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Affiliation(s)
- Rhythm Bains
- Department of Conservative Dentistry & Endodontics, King George's Medical University, Lucknow, India.
| | - Vivek K Bains
- Department of Periodontology, Saraswati Dental College, Lucknow, India
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41
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Case-control study of mandibular canal branching and tooth-related inflammatory lesions. Oral Radiol 2018; 34:229-236. [PMID: 30484033 DOI: 10.1007/s11282-017-0305-9] [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: 06/13/2017] [Accepted: 09/28/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVES Morphological variations of mandibular canals increase the risk of neurovascular damage and bleeding during surgical procedures by decreasing the predictability of the inferior alveolar neurovascular bundle location. To improve the predictability with such variations, the present study aimed to verify the possibility of a relationship between mandibular canal branches (MCBs) and tooth-related inflammatory lesions, using trough cone-beam computed tomography (CBCT) examinations. METHODS The sample comprised 150 age and sex-matched examinations (50 cases and 100 controls) from two databases. The CBCT examinations were grouped by the presence of MCBs starting in the mandibular body regions as the outcome variable. Tooth-related inflammatory lesions and measurements of gray levels in the posterior region of the alveolar ridge were assessed in both groups. A multiple logistic regression analysis was applied to verify the relationships between MCBs and independent variables (p < 0.05). RESULTS Occurrence of tooth-related inflammatory lesions increased the risk of MCBs in the mandibular body regions (p < 0.001; OR 11.640; 95% CI 4.327-31.311). High-contrast images had a weaker association with MCBs (p = 0.002; OR 1.002; 95% CI 1.002-1.003). The most frequent tooth-related inflammatory lesions in both groups were endodontic (34 lesions; 45.94% of the total lesions). Most of the tooth-related inflammatory lesions related to MCBs were endodontic (20 cases) and combined endodontic and periodontal inflammation (20 cases). CONCLUSIONS An association was observed between MCBs in the mandibular body regions and tooth-related inflammatory lesions. Inflammatory lesions of endodontic origin are most often associated with MCBs.
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Balto HA, Alabdulaaly L, Bahammam S, Al-Ekrish AA. Comparative analysis of prevalence of apical periodontitis in smokers and non-smokers using cone-beam computed tomography. Saudi Dent J 2018; 31:52-57. [PMID: 30705569 PMCID: PMC6349893 DOI: 10.1016/j.sdentj.2018.09.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 08/26/2018] [Accepted: 09/17/2018] [Indexed: 12/21/2022] Open
Abstract
Objective The aim of this study was to compare the prevalence and size of periapical lesions among smokers and non-smokers using cone-beam computed tomography (CBCT). Materials and methods Retrievable CBCT datasets for 46 male patients ≥18 years during a consecutive period from 2008 to 2016 were examined. The medical, smoking history and other clinical findings (signs of previous dental trauma; Decayed Missing Filled Teeth (DMFT) scores; the percentage of root filled teeth; and oral hygiene status) were obtained. Periapical status of all included teeth was assessed by CBCT images. Statistical analysis was conducted using t-test, Pearson correlation and multiple regression. Results The prevalence of apical periodontitis was 13.93% in smokers and 14.26% in non-smokers with no significant difference (p = 0.936). The mean of the average size of lesions between the two groups were almost comparable, 3.50 mm in smokers and 2.89 mm in non-smokers (p = 0.567). Pearson correlation and multiple regression analysis showed that the percentage of lesion present and the average lesion size were not correlated to any independent variable. Conclusions While smoking is considered a risk factor for marginal periodontitis, there was no difference between smokers and non-smokers in terms of apical periodontitis.
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Affiliation(s)
- Hanan A Balto
- Department of Restorative Dental Science, Division of Endodontics, Dental Caries Research Chair, College of Dentistry, King Saud University, P.O. Box 62645, Riyadh 11595, Saudi Arabia.,Department of Clinical Dental Science, College of Dentistry, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Lama Alabdulaaly
- College of Dentistry, King Saud University, Riyadh, Saudi Arabia.,Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, P.O. Box 88493, Riyadh 11662, Saudi Arabia
| | - Shaima Bahammam
- College of Dentistry, King Saud University, Riyadh, Saudi Arabia.,Department of Dentistry, King Faisal Specialist Hospital and Research Centre, P.O. Box 50514, Riyadh 11533, Saudi Arabia
| | - Asma'a A Al-Ekrish
- Department of Oral Medicine and Diagnostic Sciences, College of Dentistry, King Saud University, P.O. Box 56810, Riyadh 11564, Saudi Arabia
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43
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Aarabi G, Schnabel RB, Heydecke G, Seedorf U. Potential Impact of Oral Inflammations on Cardiac Functions and Atrial Fibrillation. Biomolecules 2018; 8:biom8030066. [PMID: 30071583 PMCID: PMC6164509 DOI: 10.3390/biom8030066] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 07/14/2018] [Accepted: 07/26/2018] [Indexed: 02/07/2023] Open
Abstract
Inflammation may be a risk factor for atrial fibrillation (AF). Oral infections frequently lead to chronic inflammation, such as gingivitis, periodontitis, and endodontic lesions. In this narrative review, we consider five basic pathogenic mechanisms that involve oral infections and inflammations in the pathogenesis of AF: (1) low level bacteremia by which oral bacteria enter the blood stream at inflamed sites of the oral cavity and invade the heart; (2) Systemic inflammation induced by inflammatory mediators, which are released from the sites of oral inflammation into the blood stream, affecting cardiac remodeling; (3) autoimmunity against molecular structures expressed in the heart caused by the host immune response to specific components of oral pathogens; (4) potentially arrhythmic effects mediated by activation of the autonomous nervous system triggered by oral inflammations; and (5) arrhythmic effects resulting from specific bacterial toxins that are produced by oral pathogenic bacteria. A number of studies support the involvement of all five mechanisms, suggesting a potentially complex contribution of oral inflammations to the pathogenesis of AF.
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Affiliation(s)
- Ghazal Aarabi
- Department of Prosthetic Dentistry, Center for Dental and Oral Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Renate B Schnabel
- Department of General and Interventional Cardiology, University Heart Center Hamburg-Eppendorf, 20251 Hamburg, Germany.
- DZHK (German Center for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, 20251 Hamburg, Germany.
| | - Guido Heydecke
- Department of Prosthetic Dentistry, Center for Dental and Oral Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Udo Seedorf
- Department of Prosthetic Dentistry, Center for Dental and Oral Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
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44
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Roles of Oral Infections in the Pathomechanism of Atherosclerosis. Int J Mol Sci 2018; 19:ijms19071978. [PMID: 29986441 PMCID: PMC6073301 DOI: 10.3390/ijms19071978] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 06/28/2018] [Accepted: 06/30/2018] [Indexed: 12/14/2022] Open
Abstract
Oral infections occur frequently in humans and often lead to chronic inflammations affecting the teeth (i.e., caries), the gingival tissues surrounding the teeth (i.e., gingivitis and endodontic lesions), and the tooth-supporting structures (i.e., periodontitis). At least four basic pathogenic mechanisms have been proposed that involve oral inflammations in the pathogenesis of atherosclerosis: (1) low level bacteremia by which oral bacteria enter the blood stream and invade the arterial wall; (2) systemic inflammation induced by inflammatory mediators released from the sites of the oral inflammation into the blood stream; (3) autoimmunity to host proteins caused by the host immune response to specific components of oral pathogens; (4) pro-atherogenic effects resulting from specific bacterial toxins that are produced by oral pathogenic bacteria. In this narrative review, we summarize published experimental evidence related to these four mechanisms and discuss their impact on the pathogenesis of atherosclerosis.
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Wang G, Fan WT, Zhang Z, Huang SG. Expression of matrix metalloproteinase-8 and matrix metalloproteinase-13 in mast cells of human periapical lesions. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:2530-2536. [PMID: 31938366 PMCID: PMC6958287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 01/11/2018] [Indexed: 06/10/2023]
Abstract
OBJECTIVE This study aimed to detect the expression of matrix metalloproteinase-8 (MMP-8) and MMP-13 in mast cells (MCs) of human periapical lesions and to discuss the pathogenic role of MCs in periapical lesions. METHODS Ninety samples were divided into three groups: (1) periapical granuloma group (n=30); (2) periapical cyst group (n=30); (3) normal periodontal membrane group (n=30). The samples were fixed in 10% neutral formalin for over 48 h and made into serial sections. After H&E staining, histological changes were observed under the optical microscope. Moreover, double immunofluorescence (DIF) staining was performed to detect expression of MMP-8 and MMP-13 in MCs of periapical lesions under the fluorescence microscope. RESULTS Compared with the normal control group, the number of MMP-8 and MMP-13 double positive MCs in the periapical lesions increased significantly (P<0.01). There was no significant difference in the density of MMP-8 and MMP-13 double positive MCs in the periapical cyst group and periapical granuloma group (P>0.05). CONCLUSION The number of MCs increased significantly in periapical lesions and there was a considerable increase in the density of MMP-8 and MMP-13 double positive MCs. These results indicate that MCs positive for MMP-8 and MMP-13 might contribute to the pathogenesis of chronic apical periodontitis.
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Affiliation(s)
- Gang Wang
- Department of Conservative Dentistry, Affiliated Zhongshan Hospital, Sun Yat-sen UniversityZhongshan 528404, Guangdong, China
| | - Wan-Ting Fan
- Second Clinical Medicine College of Jinan University, Oral Medicine Center of Shenzhen People’s HospitalShenzhen 518020, Guangdong, China
| | - Zheng Zhang
- Second Clinical Medicine College of Jinan University, Oral Medicine Center of Shenzhen People’s HospitalShenzhen 518020, Guangdong, China
| | - Shi-Guang Huang
- School of Stomatology, Jinan UniversityGuangzhou 510632, Guangdong, China
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Aw V. Discuss the role of microorganisms in the aetiology and pathogenesis of periapical disease. AUST ENDOD J 2017; 42:53-9. [PMID: 27506189 DOI: 10.1111/aej.12159] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The literature indicates that microorganisms have a critical role in the aetiology and pathogenesis of apical periodontitis. The advancement in microbiological study methods has allowed for the identification of newer species associated with the disease process. At our current understanding, however, the exact roles of specific microorganisms in apical periodontitis are not fully understood but the poly-microbial aetiology of the disease appears to be supported by the literature. The endodontic microbiota is comprised of a subset of microbiota present in the oral cavity, consisting of predominantly anaerobic bacterial species, some fungal and viral species. The pathogenesis of apical periodontitis is essentially the result of a complex interplay between bacterial and host factors, giving rise to a range of presentations depending on the balance of the interaction. The role of endodontic microbiota in the initiation and persistence of apical periodontitis means that the mainstay of endodontic treatment is the elimination of such bacteria. A challenge to the resolution of apical periodontitis after treatment lies in the inadequacy of treatment protocol in completely eradicating the pathogenic species and the inherent ability of certain species to survive the treatment. This issue should be the focus of future research as we continually search for more predictable treatment methods of achieving the resolution of apical periodontitis.
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Affiliation(s)
- Vincent Aw
- Dentistry and Oral Health, La Trobe University, Bendigo, Victoria, Australia
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Apical periodontitis in southern Estonian population: prevalence and associations with quality of root canal fillings and coronal restorations. BMC Oral Health 2017; 17:147. [PMID: 29233146 PMCID: PMC5727925 DOI: 10.1186/s12903-017-0429-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 11/19/2017] [Indexed: 12/18/2022] Open
Abstract
Background Apical periodontitis (AP) is an inflammatory disease around the apex of a tooth root. Reported prevalence of AP ranges from 27% to 83% while the data about most post-Soviet countries are still missing. Knowing the prevalence of AP within a certain population helps to plan the treatment need and evaluate the success of endodontic interventions. We aimed to collect data about prevalence and determining factors of AP for the first time in Estonia. Methods The cross-sectional study included 6552 patients (age 35.5±19.2 years). Radiographic examination was applied to investigate the prevalence of AP and quality of endodontic treatment. Results AP was diagnosed in 54.7% of subjects. Endodontically treated teeth were present in 58.2% of subjects. Periapical finding was present in 44.6% of endodontically treated and in 30.8% of untreated teeth. Out of 181,495 teeth, 52.7% were intact. AP was diagnosed in 6.3% of teeth, 6.9% of teeth were endodontically treated. Risk factors for AP included caries (OR = 2.30), male gender (OR = 1.44), too short (OR = 1.76) or too long root canal filling (OR = 2.51), root canal filling of low density (OR = 1.61) while not orthodontic appliance. Lower AP risk was associated with restoration of the tooth – filling (OR = 0.45), crown (OR = 0.34) and bridge (OR = 0.33). Conclusions AP is highly prevalent in Southern Estonian population. Most cases are associated with root canal-treated teeth. The overall quality of root canal fillings tends to be low, consistent with the mediocre outcome of treatment. Considerable efforts are required to improve the standards of endodontic treatment. Electronic supplementary material The online version of this article (10.1186/s12903-017-0429-7) contains supplementary material, which is available to authorized users.
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Cecil JD, O'Brien-Simpson NM, Lenzo JC, Holden JA, Singleton W, Perez-Gonzalez A, Mansell A, Reynolds EC. Outer Membrane Vesicles Prime and Activate Macrophage Inflammasomes and Cytokine Secretion In Vitro and In Vivo. Front Immunol 2017; 8:1017. [PMID: 28890719 PMCID: PMC5574916 DOI: 10.3389/fimmu.2017.01017] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 08/08/2017] [Indexed: 12/16/2022] Open
Abstract
Outer membrane vesicles (OMVs) are proteoliposomes blebbed from the surface of Gram-negative bacteria. Chronic periodontitis is associated with an increase in subgingival plaque of Gram-negative bacteria, Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia. In this study, we investigated the immune-modulatory effects of P. gingivalis, T. denticola, and T. forsythia OMVs on monocytes and differentiated macrophages. All of the bacterial OMVs were phagocytosed by monocytes, M(naïve) and M(IFNγ) macrophages in a dose-dependent manner. They also induced NF-κB activation and increased TNFα, IL-8, and IL-1β cytokine secretion. P. gingivalis OMVs were also found to induce anti-inflammatory IL-10 secretion. Although unprimed monocytes and macrophages were resistant to OMV-induced cell death, lipopolysaccharide or OMV priming resulted in a significantly reduced cell viability. P. gingivalis, T. denticola, and T. forsythia OMVs all activated inflammasome complexes, as monitored by IL-1β secretion and ASC speck formation. ASC was critical for OMV-induced inflammasome formation, while AIM2-/- and Caspase-1-/- cells had significantly reduced inflammasome formation and NLRP3-/- cells exhibited a slight reduction. OMVs were also found to provide both priming and activation of the inflammasome complex. High-resolution microscopy and flow cytometry showed that P. gingivalis OMVs primed and activated macrophage inflammasomes in vivo with 80% of macrophages exhibiting inflammasome complex formation. In conclusion, periodontal pathogen OMVs were found to have significant immunomodulatory effects upon monocytes and macrophages and should therefore influence pro-inflammatory host responses associated with disease.
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Affiliation(s)
- Jessica D Cecil
- Oral Health CRC, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, VIC, Australia
| | - Neil M O'Brien-Simpson
- Oral Health CRC, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, VIC, Australia
| | - Jason C Lenzo
- Oral Health CRC, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, VIC, Australia
| | - James A Holden
- Oral Health CRC, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, VIC, Australia
| | - William Singleton
- Oral Health CRC, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, VIC, Australia
| | - Alexis Perez-Gonzalez
- Oral Health CRC, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, VIC, Australia
| | - Ashley Mansell
- Department of Molecular and Translational Science, Monash University, Clayton, VIC, Australia
| | - Eric C Reynolds
- Oral Health CRC, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, VIC, Australia
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Vengerfeldt V, Mändar R, Saag M, Piir A, Kullisaar T. Oxidative stress in patients with endodontic pathologies. J Pain Res 2017; 10:2031-2040. [PMID: 28894386 PMCID: PMC5584906 DOI: 10.2147/jpr.s141366] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Apical periodontitis (AP) is an inflammatory disease affecting periradicular tissues. It is a widespread condition but its etiopathogenetic mechanisms have not been completely elucidated and the current treatment options are not always successful. PURPOSE To compare oxidative stress (OxS) levels in the saliva and the endodontium (root canal [RC] contents) in patients with different endodontic pathologies and in endodontically healthy subjects. PATIENTS AND METHODS The study group of this comparison study included 22 subjects with primary chronic apical periodontitis (pCAP), 26 with posttreatment or secondary chronic apical periodontitis (sCAP), eight with acute periapical abscess, 13 with irreversible pulpitis, and 17 healthy controls. Resting saliva samples were collected before clinical treatment. Pulp samples (remnants of the pulp, tooth tissue, and/or previous root filling material) were collected under strict aseptic conditions using the Hedström file. The samples were frozen to -80°C until analysis. OxS markers (myeloperoxidase [MPO], oxidative stress index [OSI], 8-isoprostanes [8-EPI]) were detected in the saliva and the endodontium. RESULTS The highest MPO and 8-EPI levels were seen in pCAP and pulpitis, while the highest levels of OSI were seen in pCAP and abscess patients, as well as the saliva of sCAP patients. Controls showed the lowest OxS levels in both RC contents and saliva. Significant positive correlations between OxS markers, periapical index, and pain were revealed. Patients with pain had significantly higher OxS levels in both the endodontium (MPO median 27.9 vs 72.6 ng/mg protein, p=0.004; OSI 6.0 vs 10.4, p<0.001; 8-EPI 50.0 vs 75.0 pg/mL, p<0.001) and saliva (MPO 34.2 vs 117.5 ng/mg protein, p<0.001; 8-EPI 50.0 vs 112.8 pg/mL, p<0.001) compared to pain-free subjects. CONCLUSION OxS is an important pathomechanism in endodontic pathologies that is evident at both the local (RC contents) and systemic (saliva) level. OxS is significantly associated with dental pain and bone destruction.
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Affiliation(s)
- Veiko Vengerfeldt
- Institute of Dental Sciences, Faculty of Medicine, University of Tartu
| | - Reet Mändar
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu
- Competence Centre on Health Technologies, Tartu, Estonia
| | - Mare Saag
- Institute of Dental Sciences, Faculty of Medicine, University of Tartu
| | - Anneli Piir
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu
| | - Tiiu Kullisaar
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu
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Cecil JD, O’Brien-Simpson NM, Lenzo JC, Holden JA, Chen YY, Singleton W, Gause KT, Yan Y, Caruso F, Reynolds EC. Differential Responses of Pattern Recognition Receptors to Outer Membrane Vesicles of Three Periodontal Pathogens. PLoS One 2016; 11:e0151967. [PMID: 27035339 PMCID: PMC4818014 DOI: 10.1371/journal.pone.0151967] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 03/07/2016] [Indexed: 12/15/2022] Open
Abstract
Highly purified outer membrane vesicles (OMVs) of the periodontal pathogens, Porphyromonas gingivalis, Treponema denticola and Tannerella forsythia were produced using tangential flow ultrafiltration, ultracentrifugation and Optiprep density gradient separation. Cryo-TEM and light scattering showed OMVs to be single lipid-bilayers with modal diameters of 75 to 158 nm. Enumeration of OMVs by nanoparticle flow-cytometry at the same stage of late exponential culture indicated that P. gingivalis was the most prolific OMV producer. P. gingivalis OMVs induced strong TLR2 and TLR4-specific responses and moderate responses in TLR7, TLR8, TLR9, NOD1 and NOD2 expressing-HEK-Blue cells. Responses to T. forsythia OMVs were less than those of P. gingivalis and T. denticola OMVs induced only weak responses. Compositional analyses of OMVs from the three pathogens demonstrated differences in protein, fatty acids, lipopolysaccharide, peptidoglycan fragments and nucleic acids. Periodontal pathogen OMVs induced differential pattern recognition receptor responses that have implications for their role in chronic periodontitis.
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Affiliation(s)
- Jessica D. Cecil
- Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - Neil M. O’Brien-Simpson
- Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jason C. Lenzo
- Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - James A. Holden
- Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - Yu-Yen Chen
- Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - William Singleton
- Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - Katelyn T. Gause
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria, Australia
| | - Yan Yan
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria, Australia
| | - Frank Caruso
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria, Australia
| | - Eric C. Reynolds
- Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Melbourne, Victoria, Australia
- * E-mail:
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