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Hamada M, Inaba H, Nishiyama K, Yoshida S, Yura Y, Matsumoto‐Nakano M, Uzawa N. Transcriptomic analysis of Porphyromonas gingivalis-infected head and neck cancer cells: Identification of PLAU as a candidate prognostic biomarker. J Cell Mol Med 2024; 28:10.1111/jcmm.18167. [PMID: 38363001 PMCID: PMC10870695 DOI: 10.1111/jcmm.18167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 01/09/2024] [Accepted: 01/25/2024] [Indexed: 02/17/2024] Open
Abstract
Periodontal disease is a risk factor for head and neck squamous cell carcinoma (HNSCC), and Porphyromonas gingivalis, a major periodontal pathogen, has been identified as a specific and potentially independent microbial factor that increases the risk of cancer mortality. Gene expression in HNSCC due to P. gingivalis infection and how changes in gene expression affect the prognosis of HNSCC patients are not clarified. When P. gingivalis was cultured with HNSCC cells, it efficiently adhered to these cells and enhanced their invasive ability. A transcriptome analysis of P. gingivalis -infected HNSCC cells showed that genes related to migration, including CCL20, CITED2, CTGF, C8orf44-SGK3, DUSP10, EGR3, FUZ, HBEGF, IL1B, IL24, JUN, PLAU, PTGS2, P2RY1, SEMA7A, SGK1 and SIX2, were highly up- or down-regulated. The expression of up-regulated genes was examined using the expression data of HNSCC patients obtained from The Cancer Genome Atlas (TCGA) database, and the expression of 5 genes, including PLAU, was found to be higher in cancer tissue than in solid normal tissue. An analysis of protein-protein interactions revealed that these 5 genes formed a dense network. A Cox regression analysis showed that high PLAU expression levels were associated with a poor prognosis in patients with TCGA-HNSCC. Furthermore, the prognostic impact correlated with tumour size and the presence or absence of lymph node metastasis. Collectively, these results suggest the potential of PLAU as a molecular prognostic marker in HNSCC patients. Further in vivo and in vitro studies are needed to verify the findings of this study.
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Affiliation(s)
- Masakazu Hamada
- Department of Oral & Maxillofacial Oncology and SurgeryOsaka University Graduate School of Dentistry
| | - Hiroaki Inaba
- Department of Pediatric DentistryOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
| | - Kyoko Nishiyama
- Department of Oral & Maxillofacial Oncology and SurgeryOsaka University Graduate School of Dentistry
| | - Sho Yoshida
- Department of Pediatric DentistryOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
| | - Yoshiaki Yura
- Department of Oral & Maxillofacial Oncology and SurgeryOsaka University Graduate School of Dentistry
| | - Michiyo Matsumoto‐Nakano
- Department of Pediatric DentistryOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
| | - Narikazu Uzawa
- Department of Oral & Maxillofacial Oncology and SurgeryOsaka University Graduate School of Dentistry
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Hu Z, Xiang Y, Wei Y, Gu X, Leng W, Xia L. Bacterial diversity in primary infected root canals of a Chinese cohort: analysis of 16 S rDNA sequencing. BMC Oral Health 2023; 23:932. [PMID: 38012618 PMCID: PMC10680180 DOI: 10.1186/s12903-023-03618-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 11/03/2023] [Indexed: 11/29/2023] Open
Abstract
PURPOSE To characterize the bacterial community in the primarily infected root canals. METHODS A total of 13 samples were collected from the primarily infected root canals. 16 S rDNA sequencing was performed to define bacterial community. Taxonomic annotation, bacterial hierarchical structures, community richness and diversity, and inter-subject variability of the bacterial community in the root canal samples were analyzed. Gender, age, and duration of the toothache-specific bacterial community associated with the patient groups were analyzed. RESULTS A total of 359 Species were annotated and identified in the whole study cohort. The Alpha diversity analysis showed that the species diversity and detection rate of the 13 samples were high, which reflected the authenticity of sequencing results. The Beta diversity analysis was used to compare the degree of difference between different root canal samples. The 13 samples were divided into two groups according to the results, group A was samples I1-I12, and group B was samples I13. The bacterial species of group A samples were analyzed with the clinical characteristics of patients, and it was found that gender, and duration specific differences in bacterial species, and there was no significant difference in species types among different ages of patients. CONCLUSION There were a wide diversity and inter-subject variability in the bacterial community in the primary infected root canals. While Porphyromonas gingivalis was the most abundant species, Fusobacterium nucleatum was the most variable species in the bacterial community of the root canal. The bacterial community at different taxonomic levels varied from sample to sample, despite consistent disease diagnoses. There was gender, duration-specific differences in the bacterial species in the primary infected root canals.
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Affiliation(s)
- Ziqiu Hu
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, China
- Institute of Oral Diseases, School of Dentistry, Hubei University of Medicine, Shiyan, 442000, China
| | - Yonggang Xiang
- Department of Ophthalmology, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, China
| | - Yanhong Wei
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, China
- Institute of Oral Diseases, School of Dentistry, Hubei University of Medicine, Shiyan, 442000, China
| | - Xinsheng Gu
- Department of Pharmacology, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Weidong Leng
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, China.
- Institute of Oral Diseases, School of Dentistry, Hubei University of Medicine, Shiyan, 442000, China.
| | - Lingyun Xia
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, China.
- Institute of Oral Diseases, School of Dentistry, Hubei University of Medicine, Shiyan, 442000, China.
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Weber C, Dilthey A, Finzer P. The role of microbiome-host interactions in the development of Alzheimer´s disease. Front Cell Infect Microbiol 2023; 13:1151021. [PMID: 37333848 PMCID: PMC10272569 DOI: 10.3389/fcimb.2023.1151021] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 05/16/2023] [Indexed: 06/20/2023] Open
Abstract
Alzheimer`s disease (AD) is the most prevalent cause of dementia. It is often assumed that AD is caused by an aggregation of extracellular beta-amyloid and intracellular tau-protein, supported by a recent study showing reduced brain amyloid levels and reduced cognitive decline under treatment with a beta-amyloid-binding antibody. Confirmation of the importance of amyloid as a therapeutic target notwithstanding, the underlying causes of beta-amyloid aggregation in the human brain, however, remain to be elucidated. Multiple lines of evidence point towards an important role of infectious agents and/or inflammatory conditions in the etiology of AD. Various microorganisms have been detected in the cerebrospinal fluid and brains of AD-patients and have thus been hypothesized to be linked to the development of AD, including Porphyromonas gingivalis (PG) and Spirochaetes. Intriguingly, these microorganisms are also found in the oral cavity under normal physiological conditions, which is often affected by multiple pathologies like caries or tooth loss in AD patients. Oral cavity pathologies are mostly accompanied by a compositional shift in the community of oral microbiota, mainly affecting commensal microorganisms and referred to as 'dysbiosis'. Oral dysbiosis seems to be at least partly mediated by key pathogens such as PG, and it is associated with a pro-inflammatory state that promotes the destruction of connective tissue in the mouth, possibly enabling the translocation of pathogenic microbiota from the oral cavity to the nervous system. It has therefore been hypothesized that dysbiosis of the oral microbiome may contribute to the development of AD. In this review, we discuss the infectious hypothesis of AD in the light of the oral microbiome and microbiome-host interactions, which may contribute to or even cause the development of AD. We discuss technical challenges relating to the detection of microorganisms in relevant body fluids and approaches for avoiding false-positives, and introduce the antibacterial protein lactoferrin as a potential link between the dysbiotic microbiome and the host inflammatory reaction.
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Guo Y, Liu Y, Yang H, Dai N, Zhou F, Yang H, Sun W, Kong J, Yuan X, Gao S. Associations of Porphyromonas gingivalis Infection and Low Beclin1 Expression With Clinicopathological Parameters and Survival of Esophageal Squamous Cell Carcinoma Patients. Pathol Oncol Res 2021; 27:1609976. [PMID: 34955686 PMCID: PMC8692246 DOI: 10.3389/pore.2021.1609976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/17/2021] [Indexed: 12/23/2022]
Abstract
Purpose: The present study focused on exploring the associations of Porphyromonas gingivalis (P. gingivalis) infection and low Beclin1 expression with clinicopathological parameters and survival of esophageal squamous cell carcinoma (ESCC) patients, so as to illustrate its clinical significance and prognostic value. Methods: Immunohistochemistry (IHC) was used to detect P. gingivalis infection status and Beclin1 expression in 370 ESCC patients. The chi-square test was adopted to illustrate the relationship between categorical variables, and Cohen's kappa coefficient was used for correlation analysis. Kaplan-Meier survival curves with the log-rank test were used to analyse the correlation of P. gingivalis infection and low Beclin1 expression with survival time. The effects of P. gingivalis infection and Beclin1 downregulation on the proliferation, migration and antiapoptotic abilities of ESCC cells in vitro were detected by Cell Counting Kit-8, wound healing and flow cytometry assays. For P. gingivalis infection of ESCC cells, cell culture medium was replaced with antibiotic-free medium when the density of ESCC cells was 70-80%, cells were inoculated with P. gingivalis at a multiplicity of infection (MOI) of 10. Result: P. gingivalis infection was negatively correlated with Beclin1 expression in ESCC tissues, and P. gingivalis infection and low Beclin1 expression were associated with differentiation status, tumor invasion depth, lymph node metastasis, clinical stage and prognosis in ESCC patients. In vitro experiments confirmed that P. gingivalis infection and Beclin1 downregulation potentiate the proliferation, migration and antiapoptotic abilities of ESCC cells (KYSE150 and KYSE30). Our results provide evidence that P. gingivalis infection and low Beclin1 expression were associated with the development and progression of ESCC. Conclusion: Long-term smoking and alcohol consumption causes poor oral and esophageal microenvironments and ESCC patients with these features were more susceptible to P. gingivalis infection and persistent colonization, and exhibited lower Beclin1 expression, worse prognosis and more advanced clinicopathological features. Our findings indicate that effectively eliminating P. gingivalis colonization and restoring Beclin1 expression in ESCC patients may contribute to preventation and targeted treatment, and yield new insights into the aetiological research on ESCC.
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Affiliation(s)
- Yibo Guo
- Henan Key Laboratory of Microbiome and Esophageal Cancer Prevention and Treatment, Henan Key Laboratory of Cancer Epigenetics, Cancer Hospital, The First Affiliated Hospital (College of Clinical Medicine) of Henan University of Science and Technology, Luoyang, China
- College of Medicine, Henan University of Science and Technology, Luoyang, China
| | - Yiwen Liu
- Henan Key Laboratory of Microbiome and Esophageal Cancer Prevention and Treatment, Henan Key Laboratory of Cancer Epigenetics, Cancer Hospital, The First Affiliated Hospital (College of Clinical Medicine) of Henan University of Science and Technology, Luoyang, China
| | - Haijun Yang
- Department of Thoracic Surgery, Department of Pathology, Anyang Tumor Hospital, Anyang, China
| | - Ningtao Dai
- Department of Thoracic Surgery, Department of Pathology, Anyang Tumor Hospital, Anyang, China
| | - Fuyou Zhou
- Department of Thoracic Surgery, Department of Pathology, Anyang Tumor Hospital, Anyang, China
| | - Hong Yang
- School of PE, Henan University of Science and Technology, Luoyang, China
| | - Wei Sun
- Henan Key Laboratory of Microbiome and Esophageal Cancer Prevention and Treatment, Henan Key Laboratory of Cancer Epigenetics, Cancer Hospital, The First Affiliated Hospital (College of Clinical Medicine) of Henan University of Science and Technology, Luoyang, China
| | - Jinyu Kong
- Henan Key Laboratory of Microbiome and Esophageal Cancer Prevention and Treatment, Henan Key Laboratory of Cancer Epigenetics, Cancer Hospital, The First Affiliated Hospital (College of Clinical Medicine) of Henan University of Science and Technology, Luoyang, China
| | - Xiang Yuan
- Henan Key Laboratory of Microbiome and Esophageal Cancer Prevention and Treatment, Henan Key Laboratory of Cancer Epigenetics, Cancer Hospital, The First Affiliated Hospital (College of Clinical Medicine) of Henan University of Science and Technology, Luoyang, China
| | - Shegan Gao
- Henan Key Laboratory of Microbiome and Esophageal Cancer Prevention and Treatment, Henan Key Laboratory of Cancer Epigenetics, Cancer Hospital, The First Affiliated Hospital (College of Clinical Medicine) of Henan University of Science and Technology, Luoyang, China
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Nagasawa Y, Nomura R, Misaki T, Ito S, Naka S, Wato K, Okunaka M, Watabe M, Fushimi K, Tsuzuki K, Matsumoto-Nakano M, Nakano K. Relationship between IgA Nephropathy and Porphyromonas gingivalis; Red Complex of Periodontopathic Bacterial Species. Int J Mol Sci 2021; 22:13022. [PMID: 34884826 PMCID: PMC8657970 DOI: 10.3390/ijms222313022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/22/2021] [Accepted: 11/27/2021] [Indexed: 12/30/2022] Open
Abstract
IgA nephropathy (IgAN) has been considered to have a relationship with infection in the tonsil, because IgAN patients often manifest macro hematuria just after tonsillitis. In terms of oral-area infection, the red complex of periodontal bacteria (Porphyromonas gingivalis (P. gingivalis), Treponema denticol (T. denticola) and Tannerella forsythia (T. forsythia)) is important, but the relationship between these bacteria and IgAN remains unknown. In this study, the prevalence of the red complex of periodontal bacteria in tonsil was compared between IgAN and tonsillitis patients. The pathogenicity of IgAN induced by P. gingivalis was confirmed by the mice model treated with this bacterium. The prevalence of P. gingivalis and T. forsythia in IgAN patients was significantly higher than that in tonsillitis patients (p < 0.001 and p < 0.05, respectively). A total of 92% of tonsillitis patients were free from red complex bacteria, while only 48% of IgAN patients had any of these bacteria. Nasal administration of P. gingivalis in mice caused mesangial proliferation (p < 0.05 at days 28a nd 42; p < 0.01 at days 14 and 56) and IgA deposition (p < 0.001 at day 42 and 56 after administration). Scanning-electron-microscopic observation revealed that a high-density Electron-Dense Deposit was widely distributed in the mesangial region in the mice kidneys treated with P. gingivalis. These findings suggest that P. gingivalis is involved in the pathogenesis of IgAN.
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Affiliation(s)
- Yasuyuki Nagasawa
- Department of Internal Medicine, Division of Kidney and Dialysis, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan
| | - Ryota Nomura
- Department of Pediatric Dentistry, Division of Oral infection and Disease Control, Osaka University Graduate School of Dentistry, Suita 565-0871, Osaka, Japan; (K.W.); (K.N.)
| | - Taro Misaki
- Division of Nephrology, Seirei Hamamatsu General Hospital, Shizuoka 430-8558, Hamamatsu, Japan;
- Department of Nursing, Faculty of Nursing, Seirei Christopher University, Shizuoka 433-8558, Hamamatsu, Japan
| | - Seigo Ito
- Department of Internal medicine, Japan Self-Defense Gifu Hospital, Gifu 502-0817, Kakamigahara, Japan;
| | - Shuhei Naka
- Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Okayama, Japan; (S.N.); (M.M.-N.)
| | - Kaoruko Wato
- Department of Pediatric Dentistry, Division of Oral infection and Disease Control, Osaka University Graduate School of Dentistry, Suita 565-0871, Osaka, Japan; (K.W.); (K.N.)
| | - Mieko Okunaka
- Department of Otolaryngology, Meiwa Hospital, Nishinomiya 663-8186, Hyogo, Japan; (M.O.); (M.W.); (K.F.)
| | - Maiko Watabe
- Department of Otolaryngology, Meiwa Hospital, Nishinomiya 663-8186, Hyogo, Japan; (M.O.); (M.W.); (K.F.)
| | - Katsuya Fushimi
- Department of Otolaryngology, Meiwa Hospital, Nishinomiya 663-8186, Hyogo, Japan; (M.O.); (M.W.); (K.F.)
- Department of Otorhinolaryngology, Head and Neck Surgery, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan;
| | - Kenzo Tsuzuki
- Department of Otorhinolaryngology, Head and Neck Surgery, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan;
| | - Michiyo Matsumoto-Nakano
- Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Okayama, Japan; (S.N.); (M.M.-N.)
| | - Kazuhiko Nakano
- Department of Pediatric Dentistry, Division of Oral infection and Disease Control, Osaka University Graduate School of Dentistry, Suita 565-0871, Osaka, Japan; (K.W.); (K.N.)
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Śmiga M, Smalley JW, Ślęzak P, Brown JL, Siemińska K, Jenkins RE, Yates EA, Olczak T. Glycation of Host Proteins Increases Pathogenic Potential of Porphyromonas gingivalis. Int J Mol Sci 2021; 22:ijms222112084. [PMID: 34769513 PMCID: PMC8585099 DOI: 10.3390/ijms222112084] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 10/30/2021] [Accepted: 11/04/2021] [Indexed: 01/25/2023] Open
Abstract
The non-enzymatic addition of glucose (glycation) to circulatory and tissue proteins is a ubiquitous pathophysiological consequence of hyperglycemia in diabetes. Given the high incidence of periodontitis and diabetes and the emerging link between these conditions, it is of crucial importance to define the basic virulence mechanisms employed by periodontopathogens such as Porphyromonas gingivalis in mediating the disease process. The aim of this study was to determine whether glycated proteins are more easily utilized by P. gingivalis to stimulate growth and promote the pathogenic potential of this bacterium. We analyzed the properties of three commonly encountered proteins in the periodontal environment that are known to become glycated and that may serve as either protein substrates or easily accessible heme sources. In vitro glycated proteins were characterized using colorimetric assays, mass spectrometry, far- and near-UV circular dichroism and UV–visible spectroscopic analyses and SDS-PAGE. The interaction of glycated hemoglobin, serum albumin and type one collagen with P. gingivalis cells or HmuY protein was examined using spectroscopic methods, SDS-PAGE and co-culturing P. gingivalis with human keratinocytes. We found that glycation increases the ability of P. gingivalis to acquire heme from hemoglobin, mostly due to heme sequestration by the HmuY hemophore-like protein. We also found an increase in biofilm formation on glycated collagen-coated abiotic surfaces. We conclude that glycation might promote the virulence of P. gingivalis by making heme more available from hemoglobin and facilitating bacterial biofilm formation, thus increasing P. gingivalis pathogenic potential in vivo.
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Affiliation(s)
- Michał Śmiga
- Laboratory of Medical Biology, Faculty of Biotechnology, University of Wrocław, 14A F. Joliot-Curie St., 50-383 Wrocław, Poland; (M.Ś.); (P.Ś.); (K.S.)
| | - John W. Smalley
- Institute of Life Course and Medical Sciences, School of Dentistry, The University of Liverpool, Pembroke Place, Liverpool L3 5PS, UK; (J.W.S.); (J.L.B.)
| | - Paulina Ślęzak
- Laboratory of Medical Biology, Faculty of Biotechnology, University of Wrocław, 14A F. Joliot-Curie St., 50-383 Wrocław, Poland; (M.Ś.); (P.Ś.); (K.S.)
| | - Jason L. Brown
- Institute of Life Course and Medical Sciences, School of Dentistry, The University of Liverpool, Pembroke Place, Liverpool L3 5PS, UK; (J.W.S.); (J.L.B.)
| | - Klaudia Siemińska
- Laboratory of Medical Biology, Faculty of Biotechnology, University of Wrocław, 14A F. Joliot-Curie St., 50-383 Wrocław, Poland; (M.Ś.); (P.Ś.); (K.S.)
| | - Rosalind E. Jenkins
- CDSS Bioanalytical Facility, Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Science, The University of Liverpool, Liverpool L69 3GE, UK;
| | - Edwin A. Yates
- Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Science, The University of Liverpool, Liverpool L69 7ZB, UK;
| | - Teresa Olczak
- Laboratory of Medical Biology, Faculty of Biotechnology, University of Wrocław, 14A F. Joliot-Curie St., 50-383 Wrocław, Poland; (M.Ś.); (P.Ś.); (K.S.)
- Correspondence:
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Simas AM, Kramer CD, Weinberg EO, Genco CA. Oral infection with a periodontal pathogen alters oral and gut microbiomes. Anaerobe 2021; 71:102399. [PMID: 34090994 DOI: 10.1016/j.anaerobe.2021.102399] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 04/27/2021] [Accepted: 05/25/2021] [Indexed: 01/04/2023]
Abstract
Periodontal disease, an inflammatory bone disease of the oral cavity, affects more than 50% of the United States population over the age of 30. The Gram-negative, anaerobic bacterium Porphyromonas gingivalis, the etiological agent of periodontal disease, is known to induce dysbiosis of the oral microbiome while promoting inflammatory bone loss. We have recently reported that P. gingivalis can also alter the gut microbiota of mice prone to develop inflammatory atherosclerosis. However, it is still unknown whether P. gingivalis induces similar changes to the gut microbiome as it does to oral microbiome. In this study, we demonstrate that P. gingivalis infection increases the diversity of the oral microbiome, allowing for colonization of potentially opportunistic species in the oral microbiome and overgrowth of commensal species in both the oral and gut microbiomes. Since periodontal disease treatment in humans typically involves antibiotic treatment, we also examined the combined effect of P. gingivalis infection on mice pretreated with oral antibiotics. By correlating the oral and cecal microbiota of P. gingivalis-infected mice fed a normal chow diet, we identified blooms of the Gram-negative genera Barnesiella and Bacteroides and imbalances of mucin-degrading bacteria. These disrupted community structures were predicted to have increased detrimental functional capacities including increased flavonoid degradation and l-histidine fermentation. Though antibiotic pretreatment (without P. gingivlais) had a dominant impact on the cecal microbiome, P. gingivalis infection of mice with or without antibiotic pretreatment increased the abundance of the phylum Firmicutes and the Porphyromonadaceae family in the cecum. Collectively, our study demonstrates that P. gingivalis oral infection disrupted the oral and cecal microbiomes of otherwise unperturbed mice, altering their community membership and functional potential.
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Affiliation(s)
- Alexandra M Simas
- Graduate Program in Biochemical and Molecular Nutrition, Gerald J. and Dorothy R. Friedman School of Nutrition and Science Policy, Tufts University, Boston, MA, 02111, USA; Department of Immunology, Tufts University School of Medicine, 136 Harrison Ave, M & V 701, Boston, MA, 02111, USA.
| | - Carolyn D Kramer
- Department of Immunology, Tufts University School of Medicine, 136 Harrison Ave, M & V 701, Boston, MA, 02111, USA.
| | - Ellen O Weinberg
- Department of Immunology, Tufts University School of Medicine, 136 Harrison Ave, M & V 701, Boston, MA, 02111, USA.
| | - Caroline A Genco
- Department of Immunology, Tufts University School of Medicine, 136 Harrison Ave, M & V 701, Boston, MA, 02111, USA; Graduate Program in Immunology and Molecular Microbiology, School of Graduate Biomedical Sciences, Tufts University School of Medicine, 136 Harrison Ave, M & V 701, Boston, MA, 02111, USA; Molecular Microbiology, School of Graduate Biomedical Sciences, Tufts University School of Medicine, 136 Harrison Ave, M & V 701, Boston, MA, 02111, USA.
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Shridhar K, Aggarwal A, Rawal I, Gupta R, Masih S, Mehrotra R, Gillespie TW, Dhillon PK, Michaud DS, Prabhakaran D, Goodman M. Feasibility of investigating the association between bacterial pathogens and oral leukoplakia in low and middle income countries: A population-based pilot study in India. PLoS One 2021; 16:e0251017. [PMID: 33914825 PMCID: PMC8084244 DOI: 10.1371/journal.pone.0251017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/17/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Certain oral bacterial pathogens may play a role in oral carcinogenesis. We assessed the feasibility of conducting a population-based study in India to examine the distributions and levels of Porphyromonas gingivalis, Fusobacterium nucleatum and Prevotella intermedia in relation to oral leukoplakia (a potentially malignant disorder) and other participant characteristics. METHODS This exploratory case-control study was nested within a large urban Indian cohort and the data included 22 men and women with oral leukoplakia (cases) and 69 leukoplakia-free controls. Each participant provided a salivary rinse sample, and a subset of 34 participants (9 cases; 25 controls) also provided a gingival swab sample from keratinized gingival surface for quantitative polymerase chain reaction (qPCR). RESULTS Neither the distribution nor the levels of pathogens were associated with oral leukoplakia; however, individual pathogen levels were more strongly correlated with each other in cases compared to controls. Among controls, the median level of total pathogens was the highest (7.55×104 copies/ng DNA) among persons of low socioeconomic status. Salivary rinse provided better DNA concentration than gingival swab for qPCR analysis (mean concentration: 1.8 ng/μl vs. 0.2 ng/μl). CONCLUSIONS This study confirms the feasibility of population studies evaluating oral microbiome in low-resource settings and identifies promising leads for future research.
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Affiliation(s)
- Krithiga Shridhar
- Centre for Chronic Conditions and Injuries, Public Health Foundation of India, Gurugram, India
- Centre for Chronic Disease Control, New Delhi, India
- * E-mail:
| | - Aastha Aggarwal
- Centre for Chronic Conditions and Injuries, Public Health Foundation of India, Gurugram, India
- Centre for Chronic Disease Control, New Delhi, India
| | - Ishita Rawal
- Centre for Chronic Disease Control, New Delhi, India
| | - Ruby Gupta
- Centre for Chronic Conditions and Injuries, Public Health Foundation of India, Gurugram, India
- Centre for Chronic Disease Control, New Delhi, India
| | - Shet Masih
- Molecular Diagnostics Research Laboratory, Chandigarh, India
| | - Ravi Mehrotra
- India Cancer Research Consortium, Indian Council of Medical Research, New Delhi, India
- Emory University Rollins School of Public Health, Atlanta, Georgia, United States of America
| | - Theresa W. Gillespie
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Preet K. Dhillon
- Centre for Chronic Conditions and Injuries, Public Health Foundation of India, Gurugram, India
- Centre for Chronic Disease Control, New Delhi, India
- Genentech Roche, California, United States of America
| | - Dominique S. Michaud
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Boston, MA, United States of America
| | - Dorairaj Prabhakaran
- Centre for Chronic Conditions and Injuries, Public Health Foundation of India, Gurugram, India
- Centre for Chronic Disease Control, New Delhi, India
- Emory University Rollins School of Public Health, Atlanta, Georgia, United States of America
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Michael Goodman
- Emory University Rollins School of Public Health, Atlanta, Georgia, United States of America
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Kong J, Yuan X, Wang J, Liu Y, Sun W, Gu B, Lan Z, Gao S. Frequencies of Porphyromonas gingivalis Detection in Oral-Digestive Tract Tumors. Pathol Oncol Res 2021; 27:628942. [PMID: 34257592 PMCID: PMC8262194 DOI: 10.3389/pore.2021.628942] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/01/2021] [Indexed: 12/31/2022]
Abstract
Mounting evidence suggests a causal relationship between specific bacterial infections and the development of certain malignancies. In this study, we examined the presence of Porphyromonas gingivalis (P. gingivalis) in oral-digestive tract tumors by immunohistochemistry (IHC) and PCR and analyzed the correlation between P. gingivalis detection and clinicopathological characteristics and prognosis of oral and esophageal carcinoma. The IHC results showed that the positive rates of P. gingivalis were 60.00, 46.00, 20.00, 6.67, and 2.86% in oral, esophagus, cardiac, stomach, and colorectal cancer tissues, respectively. Likewise, PCR results showed rates of 56.00, 42.00, 16.67, 3.33, and 2.86%, respectively. The two methods were consistent, and the kappa value was 0.806, P < 0.001. In addition, P. gingivalis expression was significantly correlated with lymph node metastasis and the clinical stages of oral and esophageal cancer (P < 0.05). The overall survival rate of the P. gingivalis undetected group (86, 50%) was significantly higher than that of the P. gingivalis detected group (57, 14%) for oral and esophageal cancer, respectively. In conclusion, the detection rate of P. gingivalis showed a decreasing trend in oral-digestive tract tumors. Detection with P. gingivalis was associated with poor prognosis for oral and esophageal cancer.
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Affiliation(s)
- Jinyu Kong
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Xiang Yuan
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Jian Wang
- Radiodiagnosis Center, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Yiwen Liu
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Wei Sun
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Bianli Gu
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Zijun Lan
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Shegan Gao
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
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Huang JM, Ting CC, Chen YC, Yuan K, Lin WC. The first study to detect co-infection of Entamoeba gingivalis and periodontitis-associated bacteria in dental patients in Taiwan. J Microbiol Immunol Infect 2020; 54:745-747. [PMID: 32839120 DOI: 10.1016/j.jmii.2020.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/12/2020] [Accepted: 08/05/2020] [Indexed: 02/06/2023]
Abstract
Periodontitis, an inflammatory disease of the oral cavity, was caused by microbes from bacteria to protozoa. In this study, we detected protozoa, Entamoeba gingivalis and other three common pathogenic bacteria, Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia by the Polymerase chain reaction (PCR) on patients.
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Affiliation(s)
- Jian Ming Huang
- Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - Chun Chan Ting
- School of Dentistry & Institute of Oral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Stomatology, National Cheng Kung University Hospital, Tainan, Taiwan.
| | - Yu Chun Chen
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - Kuo Yuan
- School of Dentistry & Institute of Oral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Stomatology, National Cheng Kung University Hospital, Tainan, Taiwan.
| | - Wei Chen Lin
- Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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11
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Wang Q, Zhou X, Zhang P, Zhao P, Nie L, Ji N, Ding Y, Wang Q. 25-Hydroxyvitamin D 3 positively regulates periodontal inflammaging via SOCS3/STAT signaling in diabetic mice. Steroids 2020; 156:108570. [PMID: 31917967 DOI: 10.1016/j.steroids.2019.108570] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 11/16/2019] [Accepted: 12/21/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Diabetes is a known age-related disease. Inflammaging has recently been shown to result in diabetic complications. Vitamin D3 is related to aging in the latest study but little is known about the underlying mechanism. Here, we investigated the effects of 25-Hydroxyvitamin D3 (25(OH)D3) on inflammaging in diabetic periodontitis, a common chronic inflammatory diabetic complication. EXPERIMENTAL DESIGN A model of Porphyromonas gingivalis-infected db/db mice as experimental type 2 diabetic periodontitis was adopted in the whole study. A range of techniques, including microCT, western blotting, ELISA, histological and immunohistochemical analysis, were carried out in this study. The distinctive senescence-associated secretory phenotype (SASP) in serum was measured by Luminex technology. RESULTS We found an archetypal inflammaging status occurred in db/db mice. An increased SASP, senescent enhancement, and periodontal destruction were observed in periodontitis-db/db mice. Upon administration with 25(OH)D3, periodontitis-db/db mice presented increased levels of serum 25(OH)D3, 1α,25-Dihydroxyvitamin D3 and calcium. Moreover, decreased p16/p21-positive cells, relieved periodontal conditions and ameliorated serum SASP secretion were found in the periodontitis-db/db mice after treatment. Gingival tissue exhibited increased level of VDR and decreased expression of SOCS3, p-STAT3/STAT3, p-STAT5/STAT5, NF-κB and IL-1β, which were consistent with the change of p16/p21 expression. CONCLUSION Diabetic periodontitis appeared to develop an inflammaging status resulted in periodontal infection. 25(OH)D3 could inhibit SASP secretion through reducing SOCS3 expression in experimental diabetic periodontitis, dependently inactivating NF-κB pro-inflammatory signaling. The reversible effect further documented that the inflammaging might be a highly likely contributor in diabetic periodontitis.
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Affiliation(s)
- Qian Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, China; Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, China
| | - Xinyi Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, China; Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, China
| | - Peng Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, China; Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, China
| | - Pengfei Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, China; Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, China
| | - Lulingxiao Nie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, China; Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, China
| | - Ning Ji
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, China
| | - Yi Ding
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, China; Department of Periodontology, West China Hospital of Stomatology, Sichuan University, China
| | - Qi Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, China; Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, China.
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Abstract
BACKGROUND Periodontal bacteria is the major pathogens in the oral cavity and the main cause of adult chronic periodontitis, but their association with incidence and prognosis in cancer is controversial. The aim of this study was to evaluate the effect of periodontal bacteria infection on incidence and prognosis of cancer. METHODS A systematic literature search of PubMed, Embase, Web of Science, and Cochrane Library databases was performed to obtain 39 studies comprising 7184 participants. The incidence of cancer was evaluated as odd ratios (OR) with a 95% confidence interval (95% CI) using Review Manager 5.2 software. Overall survival, cancer-specific survival and disease-free survival, which were measured as hazard ratios (HR) with a 95% CI using Review Manager 5.2 software. RESULTS Our results indicated that periodontal bacteria infection increased the incidence of cancer (OR = 1.25; 95%CI: 1.03-1.52) and was associated with poor overall survival (HR = 1.75; 95% CI: 1.40-2.20), disease-free survival (HR = 2.18; 95%CI: 1.24-3.84) and cancer-specific survival (HR = 1.85, 95%CI: 1.44-2.39). Subgroup analysis indicted that the risk of cancer was associated with Porphyromonas gingivalis (Pg) infection (OR = 2.16; 95%CI: 1.34-3.47) and Prevotella intermedia (Pi) infection (OR = 1.28; 95%CI: 1.01-1.63) but not Tannerella forsythia (Tf) (OR = 1.06; 95%CI: 0.8-1.41), Treponema denticola (Td) (OR = 1.30; 95%CI: 0.99-1.72), Aggregatibacter actinomycetemcomitans (Aa) (OR = 1.00; 95%CI: 0.48-2.08) and Fusobacterium nucleatum (Fn) (OR = 0.61; 95%CI: 0.32-1.16). CONCLUSION This meta-analysis revealed periodontal bacteria infection increased the incidence of cancer and predicted poor prognosis of cancer.
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Affiliation(s)
- Li Xiao
- Department of Stomatology North Sichuan Medical College
| | - Qianyu Zhang
- Department of Stomatology North Sichuan Medical College
| | | | - Daqing Wang
- Department of Ophthalmology North Sichuan Medical College, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Ying Liu
- Department of Stomatology North Sichuan Medical College
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13
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Nozawa A, Oshima H, Togawa N, Nozaki T, Murakami S. Development of Oral Care Chip, a novel device for quantitative detection of the oral microbiota associated with periodontal disease. PLoS One 2020; 15:e0229485. [PMID: 32109938 PMCID: PMC7048280 DOI: 10.1371/journal.pone.0229485] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 01/01/2020] [Indexed: 02/07/2023] Open
Abstract
Periodontal disease, the most prevalent infectious disease in the world, is caused by biofilms formed in periodontal pockets. No specific bacterial species that can cause periodontitis alone has been found in any study to date. Several periodontopathic bacteria are associated with the progress of periodontal disease. Consequently, it is hypothesized that dysbiosis of subgingival microbiota may be a cause of periodontal disease. This study aimed to investigate the relationship between the subgingival microbiota and the clinical status of periodontal pockets in a quantitative and clinically applicable way with the newly developed Oral Care Chip. The Oral Care Chip is a DNA microarray tool with improved quantitative performance, that can be used in combination with competitive PCR to quantitatively detect 17 species of subgingival bacteria. Cluster analysis based on the similarity of each bacterial quantity was performed on 204 subgingival plaque samples collected from periodontitis patients and healthy volunteers. A significant difference in the number of total bacteria, Treponema denticola, Campylobacter rectus, Fusobacterium nucleatum, and Streptococcus intermedia bacteria in any combination of the three clusters indicated that these bacteria gradually increased in number from the stage before the pocket depth deepened. Conversely, Porphyromonas gingivalis, Tannerella forsythia, Prevotella intermedia, and Streptococcus constellatus, which had significant differences only in limited clusters, were thought to increase in number as the pocket depth deepened, after periodontal pocket formation. Furthermore, in clusters where healthy or mild periodontal disease sites were classified, there was no statistically significant difference in pocket depth, but the number of bacteria gradually increased from the stage before the pocket depth increased. This means that quantitative changes in these bacteria can be a predictor of the progress of periodontal tissue destruction, and this novel microbiological test using the Oral Care Chip could be effective at detecting dysbiosis.
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Affiliation(s)
- Ai Nozawa
- Tsurumi R&D center, Mitsubishi Chemical Corporation, Yokohama, Kanagawa, Japan
| | - Hiroyuki Oshima
- Tsurumi R&D center, Mitsubishi Chemical Corporation, Yokohama, Kanagawa, Japan
| | - Naoyuki Togawa
- Tsurumi R&D center, Mitsubishi Chemical Corporation, Yokohama, Kanagawa, Japan
| | - Takenori Nozaki
- Division of Interdisciplinary Dentistry, Osaka University Dental Hospital, Suita, Osaka, Japan
| | - Shinya Murakami
- Department of Periodontology, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
- * E-mail:
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14
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Tamarova ER, Shvets KY, Mavzyutov AR, Baimiev AH, Bulgakova AI. [Creation of a molecular genetic test system for early diagnosis and evaluation of the effectiveness of treatment of inflammatory periodontal diseases.]. Klin Lab Diagn 2020; 65:55-60. [PMID: 32155008 DOI: 10.18821/0869-2084-2020-65-1-55-60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Inflammatory periodontal diseases represent a serious dental and general medical problem due to the high prevalence among the adult population, the presence of clinical forms leading to the destruction of the dentition and tooth loss, insufficient treatment effectiveness and the frequency of relapse, including in connection with the formation of biofilms. A molecular genetic test system has been developed to evaluate the content of periodontopathogenic microorganisms Porphyromonas gingivalis, Treponema denticola, Streptococcus oralis, Streptococcus sanguis and Streptococcus sobrinus in the contents of periodontal pockets. The analytical characteristics of the test system were determined, and testing was carried out on clinical samples of patients with chronic generalized periodontitis of moderate severity. The constructed diagnostic kit allowed us to conduct a comparative analysis of the effectiveness of various types of treatment of inflammatory periodontal diseases based on quantitative data on the content of bacteria in the contents of periodontal pockets.
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Affiliation(s)
| | - K Y Shvets
- Bashkir State Medical University, Ufa, Russia
- Institute of Biochemistry and genetics of Ufa Scientific Center RAS, Ufa, Russia
| | | | - A H Baimiev
- Bashkir State Medical University, Ufa, Russia
- Institute of Biochemistry and genetics of Ufa Scientific Center RAS, Ufa, Russia
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Beydoun MA, Beydoun HA, Hossain S, El-Hajj ZW, Weiss J, Zonderman AB. Clinical and Bacterial Markers of Periodontitis and Their Association with Incident All-Cause and Alzheimer's Disease Dementia in a Large National Survey. J Alzheimers Dis 2020; 75:157-172. [PMID: 32280099 PMCID: PMC11008556 DOI: 10.3233/jad-200064] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Microbial agents including periodontal pathogens have recently appeared as important actors in Alzheimer's disease (AD) pathology. We examined associations of clinical periodontal and bacterial parameters with incident all-cause and AD dementia as well as AD mortality among US middle-aged and older adults. Clinical [Attachment Loss (AL); probing pocket depth (PPD)] and bacterial [pathogen immunoglobulin G (IgG)] periodontal markers were investigated in relation to AD and all-cause dementia incidence and to AD mortality, using data from the third National Health and Nutrition Examination Surveys (NHANES III, 1988-1994) linked longitudinally with National Death Index and Medicare data through January 1, 2014, with up to 26 years of follow-up. Sex- and age-specific multivariable-adjusted Cox proportional hazards models were conducted. Among those ≥65 years, AD incidence and mortality were consistently associated with PPD, two factors and one cluster comprised of IgG titers against Porphyromonas gingivalis (P. gingivalis), Prevotella melaninogenica (P. melaninogenica) and Campylobacter rectus (C. rectus) among others. Specifically, AD incidence was linked to a composite of C. rectus and P. gingivalis titers (per SD, aHR = 1.22; 95% CI, 1.04-1.43, p = 0.012), while AD mortality risk was increased with another composite (per SD, aHR = 1.46; 95% CI, 1.09-1.96, p = 0.017) loading highly on IgG for P. gingivalis, Prevotella intermedia, Prevotella nigrescens, Fusobacterium nucleatum, C. rectus, Streptococcus intermedius, Capnocylophaga Ochracea, and P. melaninogenica. This study provides evidence for an association between periodontal pathogens and AD, which was stronger for older adults. Effectiveness of periodontal pathogen treatment on reducing sequelae of neurodegeneration should be tested in randomized controlled trials.
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Affiliation(s)
- May A. Beydoun
- Laboratory of Epidemiology and Population Sciences, National Institutes on Aging, NIA/NIH/IRP, Baltimore, MD, USA
| | | | - Sharmin Hossain
- Laboratory of Epidemiology and Population Sciences, National Institutes on Aging, NIA/NIH/IRP, Baltimore, MD, USA
| | | | - Jordan Weiss
- Population Studies Center and the Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - Alan B. Zonderman
- Laboratory of Epidemiology and Population Sciences, National Institutes on Aging, NIA/NIH/IRP, Baltimore, MD, USA
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16
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Lombardo G, Pardo A, Signoretto C, Signoriello A, Simeoni E, Rovera A, Nocini PF. Hyperbaric oxygen therapy for the treatment of moderate to severe periodontitis: a clinical pilot study. Undersea Hyperb Med 2020; 47:571-580. [PMID: 33227833 DOI: 10.22462/10.12.2020.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
OBJECTIVES To clinically and microbiologically evaluate the effects of hyperbaric oxygen (HBO2) therapy in addition to full-mouth ultrasonic subgingival debridement (FM-UD), in the initial treatment of chronic periodontitis. METHODS Twenty patients presenting moderate to severe generalized forms of chronic periodontitis were included in a three-month randomized, parallel-group, single-blinded, prospective study. At baseline patients were randomly assigned to two treatment groups [Test Group (FM-UD+HBO2) and Control Group (FM-UD)]. Both groups were treated with an FM-UD session. Ten HBO2 sessions (one session per day for 10 days at a pressure of 2.5 ATA) were additionally administered to the Test Group. Soft tissues parameters [probing pocket depth (PPD), bleeding on probing (BOP), clinical attachment level (CAL) and visible plaque index (VPI)] were assessed at baseline (immediately before FM-UD treatment), after two weeks, after six weeks and at three months. For each patient, a site presenting PPD ≥ 6mm and positive BOP was selected as a qualifying site (QS), to be monitored clinically (at T0, T1, T2 and T3) and microbiologically (at T0, T1 and T3). RESULTS There were no statistically significant differences between the two groups for any clinical parameter analyzed after three months, except for BOP, which was significantly (p < 0.05) reduced in the Test Group. Reductions in bacterial levels were detected in both groups after therapy. Faster bacterial recolonization occurred after three months in the Control Group. CONCLUSION HBO2 therapy in combination with FM-UD may represent an efficacious approach to the treatment of moderate to severe forms of periodontitis.
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Affiliation(s)
- Giorgio Lombardo
- Dentistry and Maxillofacial Surgery Section, Department of Surgery, Dentistry, Pediatrics and Gynecology (DIPSCOMI), University of Verona, Verona, Italy
| | - Alessia Pardo
- Dentistry and Maxillofacial Surgery Section, Department of Surgery, Dentistry, Pediatrics and Gynecology (DIPSCOMI), University of Verona, Verona, Italy
| | - Caterina Signoretto
- Microbiology Section, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Annarita Signoriello
- Dentistry and Maxillofacial Surgery Section, Department of Surgery, Dentistry, Pediatrics and Gynecology (DIPSCOMI), University of Verona, Verona, Italy
| | - Elena Simeoni
- Dentistry and Maxillofacial Surgery Section, Department of Surgery, Dentistry, Pediatrics and Gynecology (DIPSCOMI), University of Verona, Verona, Italy
| | - Angela Rovera
- Institute of Dentistry, Queen Mary University of London, London United Kingdom
| | - Pier Francesco Nocini
- Dentistry and Maxillofacial Surgery Section, Department of Surgery, Dentistry, Pediatrics and Gynecology (DIPSCOMI), University of Verona, Verona, Italy
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Gliosca LA, D Eramo LR, Bozza FL, Soken L, Abusamra L, Salgado PA, Squassi AF, Molgatini SL. Microbiological study of the subgingival biofilm in HIV+/HAART patients at a specialized dental service. Acta Odontol Latinoam 2019; 32:147-155. [PMID: 32176238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 12/01/2019] [Indexed: 06/10/2023]
Abstract
The aim of this study was to describe the microbiological profile of HIV patients under highly active antiretroviral treatment (HAART). This crosssectional study comprised 32 HIV patients with periodontal disease (PD) who had been under HAART for more than 6 months. Information about the patients' medical history was obtained from clinical records. Clinical dental examination was performed by a calibrated researcher using standard dental instruments to determine probing depth (PD), clinical attachment level (CAL), and bleeding on probing (BOP). A total 4,765 periodontal sites were evaluated, 125 of which were also studied microbiologically. Subgingival biofilm samples were obtained using sterile paper points; one set was used for microbiological culture studies and the other for endpoint PCR. Statistical analysis was performed using KruskalWallis and posthoc DunnBonferroni contrast tests. All participants were on HAART at the time of the study, and 90.6% had a viral load below 50 copies / mm3. Prevalence of periodontally active sites was low in the study population. Microbiological studies: Black pigmented anaerobic bacteria and fusiform CFU counts were significantly higher in samples from sites with BOP and PD ≥4mm (p 0.020 and p 0.005, respectively). Molecular Assays: Detection of Porphyromonas gingivalis (p 0.002), Tannerella forsythia (p 0.023) and Treponema denticola (p 0.015) was significantly more frequent at sites with BOP and PD ≥4mm. Conclusions: The patients living with HIV/AIDS under HAART studied here had low prevalence of clinical periodontal disease signs. However, significant detection of P. gingivalis, T. denticola, and T. forsythia in periodontal active sites, and the involvement of these microorganisms as potential HIV reactivators, show the importance of creating awareness among dental health professionals of the need for close dental and periodontal monitoring in HIV patients.
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Affiliation(s)
- Laura A Gliosca
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Microbiología, Laboratorio de Diagnóstico Microbiológico, Buenos Aires, Argentina.
- Universidad de Buenos Aires, Instituto de Investigaciones en Salud Pública, Buenos Aires, Argentina
| | - Luciana R D Eramo
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Odontología Preventiva Comunitaria, Buenos Aires, Argentina
- Universidad de Buenos Aires, Instituto de Investigaciones en Salud Pública, Buenos Aires, Argentina
- Universidad de Buenos Aires, Facultad de Odontología, Clínica para La Atención de Pacientes de Alto Riesgo médico: (CLAPAR I), Buenos Aires, Argentina
| | - Florencia L Bozza
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Microbiología, Laboratorio de Diagnóstico Microbiológico, Buenos Aires, Argentina
- Universidad de Buenos Aires, Instituto de Investigaciones en Salud Pública, Buenos Aires, Argentina
| | - Luciana Soken
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Microbiología, Laboratorio de Diagnóstico Microbiológico, Buenos Aires, Argentina
- Universidad de Buenos Aires, Instituto de Investigaciones en Salud Pública, Buenos Aires, Argentina
| | - Lorena Abusamra
- Servicio de Infectología. Hospital General de Agudos Dr. Juan A. Fernández, Buenos Aires, Argentina
| | - Pablo A Salgado
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Microbiología, Laboratorio de Diagnóstico Microbiológico, Buenos Aires, Argentina
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Odontología Preventiva Comunitaria, Buenos Aires, Argentina
- Universidad de Buenos Aires, Instituto de Investigaciones en Salud Pública, Buenos Aires, Argentina
| | - Aldo F Squassi
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Odontología Preventiva Comunitaria, Buenos Aires, Argentina
- Universidad de Buenos Aires, Instituto de Investigaciones en Salud Pública, Buenos Aires, Argentina
- Universidad de Buenos Aires, Facultad de Odontología, Clínica para La Atención de Pacientes de Alto Riesgo médico: (CLAPAR I), Buenos Aires, Argentina
| | - Susana L Molgatini
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Microbiología, Laboratorio de Diagnóstico Microbiológico, Buenos Aires, Argentina
- Universidad de Buenos Aires, Instituto de Investigaciones en Salud Pública, Buenos Aires, Argentina
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Białowąs K, Radwan-Oczko M, Duś-Ilnicka I, Korman L, Świerkot J. Periodontal disease and influence of periodontal treatment on disease activity in patients with rheumatoid arthritis and spondyloarthritis. Rheumatol Int 2019; 40:455-463. [PMID: 31701185 DOI: 10.1007/s00296-019-04460-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 10/03/2019] [Indexed: 01/18/2023]
Abstract
The aim of this study was to assess the prevalence of periodontal disease and the effect of periodontal treatment in patients with rheumatoid arthritis (RA) and spondyloarthritis (SpA). Forty-four RA patients, thirty SpA patients and thirty-nine healthy volunteers were recruited to the study. Periodontal examination included the approximal plaque index (API), bleeding on probing (BoP), probing depth (PD) and number of teeth. Samples from the deepest periodontal pockets were taken for the detection of Porphyromonas gingivalis DNA with the use of the polymerase chain reaction. All subjects with periodontitis, who completed the study, received periodontal treatment consisting of scaling/root planing and oral hygiene instructions. Disease activity scores, clinical and laboratory parameters were assessed before and 4-6 weeks after periodontal treatment. No significant difference in the prevalence of periodontal disease and the presence of P. gingivalis DNA were found in RA and SpA patients compared to healthy controls. Significantly higher API (80% vs 63%; p = 0.01) and a lower number of teeth (20 vs 25, p = 0.001) were found in RA patients. BoP was significantly elevated in SpA patients (51% vs 33%, p = 0.02). Disease activity measured by the DAS28(CRP) was significantly reduced in RA patients after periodontal treatment (p = 0.002). Clinical and biochemical parameters were not improved in SpA patients. Nonsurgical periodontal treatment had an impact on the decrease in RA activity. Periodontal examination is necessary in patients with RA to detect and treat periodontitis at an early stage.
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Affiliation(s)
- Katarzyna Białowąs
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, Ulica Borowska 213, 50-556, Wroclaw, Poland.
| | - Małgorzata Radwan-Oczko
- Department of Oral Pathology, Wroclaw Medical University, Ulica Krakowska 26, 50-425, Wroclaw, Poland
| | - Irena Duś-Ilnicka
- Department of Oral Pathology, Wroclaw Medical University, Ulica Krakowska 26, 50-425, Wroclaw, Poland
| | - Lucyna Korman
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, Ulica Borowska 213, 50-556, Wroclaw, Poland
| | - Jerzy Świerkot
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, Ulica Borowska 213, 50-556, Wroclaw, Poland
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Huck O, Han X, Mulhall H, Gumenchuk I, Cai B, Panek J, Iyer R, Amar S. Identification of a Kavain Analog with Efficient Anti-inflammatory Effects. Sci Rep 2019; 9:12940. [PMID: 31506483 PMCID: PMC6737110 DOI: 10.1038/s41598-019-49383-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 08/21/2019] [Indexed: 12/11/2022] Open
Abstract
Kavain, a compound derived from Piper methysticum, has demonstrated anti-inflammatory properties. To optimize its drug properties, identification and development of new kavain-derived compounds was undertaken. A focused library of analogs was synthesized and their effects on Porphyromonas gingivalis (P. gingivalis) elicited inflammation were evaluated in vitro and in vivo. The library contained cyclohexenones (5,5-dimethyl substituted cyclohexenones) substituted with a benzoate derivative at the 3-position of the cyclohexanone. The most promising analog identifed was a methylated derivative of kavain, Kava-205Me (5,5-dimethyl-3-oxocyclohex-1-en-1-yl 4-methylbenzoate.) In an in vitro assay of anti-inflammatory effects, murine macrophages (BMM) and THP-1 cells were infected with P. gingivalis (MOI = 20:1) and a panel of cytokines were measured. Both cell types treated with Kava-205Me (10 to 200 μg/ml) showed significantly and dose-dependently reduced TNF-α secretion induced by P. gingivalis. In BMM, Kava-205Me also reduced secretion of other cytokines involved in the early phase of inflammation, including IL-12, eotaxin, RANTES, IL-10 and interferon-γ (p < 0.05). In vivo, in an acute model of P. gingivalis-induced calvarial destruction, administration of Kava-205Me significantly improved the rate of healing associated with reduced soft tissue inflammation and osteoclast activation. In an infective arthritis murine model induced by injection of collagen-antibody (ArthriomAb) + P. gingivalis, administration of Kava-205Me was able to reduce efficiently paw swelling and joint destruction. These results highlight the strong anti-inflammatory properties of Kava-205Me and strengthen the interest of testing such compounds in the management of P. gingivalis elicited inflammation, especially in the management of periodontitis.
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Affiliation(s)
- Olivier Huck
- Université de Strasbourg, Faculté de Chirurgie-Dentaire, 8 rue Sainte-Elisabeth, 67000, Strasbourg, France
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Xiaxian Han
- Departments of Pharmacology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, NY, USA
| | - Hannah Mulhall
- Departments of Pharmacology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, NY, USA
| | - Iryna Gumenchuk
- Departments of Pharmacology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, NY, USA
| | - Bin Cai
- Department of Chemistry, Boston University, Boston, MA, USA
| | - James Panek
- Department of Chemistry, Boston University, Boston, MA, USA
| | - Radha Iyer
- Departments of Pharmacology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, NY, USA
| | - Salomon Amar
- Departments of Pharmacology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, NY, USA.
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Li Z, Ju R, Sekine S, Zhang D, Zhuang S, Yamaguchi Y. All-in-one microfluidic device for on-site diagnosis of pathogens based on an integrated continuous flow PCR and electrophoresis biochip. Lab Chip 2019; 19:2663-2668. [PMID: 31273367 DOI: 10.1039/c9lc00305c] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Current continuous flow polymerase chain reaction (CF-PCR) microfluidic chips require external precision syringe pumps and off-line methods (e.g., electrophoresis and hybridization) to detect PCR products, resulting in complex operations and possible cross-contamination and consequently CF-PCR is still confined to laboratories. Herein, a portable all-in-one microfluidic device is fabricated for rapid diagnosis of pathogens based on an integrated CF-PCR and electrophoresis biochip. A new method was proposed for automatic sample injection into the chip which can substitute the costly external precision syringe pump. It not only achieves rapid DNA amplification and on-site PCR product detection, but also realizes automatic sample injection. As an application, three periodontal pathogens (e.g., Porphyromonas gingivalis, Treponema denticola and Tannerela forsythia) were successfully amplified in the device. Treponema denticola was amplified in as short as 2'31'', and detection of PCR products was completed within 3'43''. The minimum number of bacteria that can be amplified was 125 cfu per μl. The all-in-one device has the potential to be applied in point-of-care nucleic acid testing for diseases.
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Affiliation(s)
- Zhenqing Li
- Engineering Research Centre of Optical Instrument and System, Ministry of Education, Key Lab of Optical Instruments and Equipment for Medical Engineering, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai, China.
| | - Ruixue Ju
- Engineering Research Centre of Optical Instrument and System, Ministry of Education, Key Lab of Optical Instruments and Equipment for Medical Engineering, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai, China.
| | - Shinichi Sekine
- Department of Preventive Dentistry, Graduate School of Dentistry, Osaka University, Osaka, Japan
| | - Dawei Zhang
- Engineering Research Centre of Optical Instrument and System, Ministry of Education, Key Lab of Optical Instruments and Equipment for Medical Engineering, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai, China.
| | - Songlin Zhuang
- Engineering Research Centre of Optical Instrument and System, Ministry of Education, Key Lab of Optical Instruments and Equipment for Medical Engineering, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai, China.
| | - Yoshinori Yamaguchi
- Institute of Photonics and Bio-medicine (IPBM), Graduate School of Science, East China University of Science and Technology, Shanghai, China and Department of Applied Physics, Graduate School of Engineering, Osaka University, Osaka, Japan.
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21
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Zhao X, Tang Q, Zhu S, Bu W, Yang M, Liu X, Meng Y, Yu W, Sun H, Yang B. Controllable acidophilic dual-emission fluorescent carbonized polymer dots for selective imaging of bacteria. Nanoscale 2019; 11:9526-9532. [PMID: 31049503 DOI: 10.1039/c9nr01118h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Fluorescent materials can be powerful contrast agents in photoelectric devices and for bioimaging. As emerging fluorescent materials, carbonized polymer dots (CPDs) with high quantum yields (QYs), long-wavelength emission and multiple functions are highly desired. Despite great progress in the synthetic methods and QYs of CPDs, multiple emission of CPDs is challenging. Therefore, we developed CPDs with dual-emission fluorescence in terms of inherent blue and red emission. In addition, CPDs with sole blue emission (B-CPDs) and red emission (R-CPDs) were synthesized, respectively, by regulating the reaction conditions to control the quantitative structure and emission centers. The absolute QY of R-CPDs in water was 24.33%. These three types of CPDs with dual/sole emission could be used in optoelectronic and bioimaging applications. With different CPDs coated on a commercially available gallium nitride light-emitting diode chip as a color-conversion layer, LEDs with blue, yellow, and red emission were achieved. Benefiting from the different emission intensities and emission peaks of R/B-CPDs in different pH conditions, they were used (without further modification) to distinguish between Porphyromonas gingivalis, Streptococcus mutans, Escherichia coli and Staphylococcus aureus in dental plaque biofilms (the first time this has been demonstrated). These findings could enable a new development direction of CPDs based on the design of multi-emission centers.
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Affiliation(s)
- Xiaohuan Zhao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
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Collins JR, Chinea S, Cuello RJ, Florian AP, Palma P, Ambrosio N, Marín MJ, Figuero E, Herrera D. Subgingival microbiological profile of periodontitis patients in Dominican Republic. Acta Odontol Latinoam 2019; 32:36-43. [PMID: 31206573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 03/01/2019] [Indexed: 06/09/2023]
Abstract
Several studies have tried to associate the presence of different pathogens with the onset and progression ofperiodontitis, reporting a wide variety of results from different populations and environments. The aim of this study was to determine the main periodontal pathogens present in the subgingival biofilm of Dominican patients with periodontitis, by using specific microbiological culturing techniques. Periodontitis patients were selected after a full-mouth periodontal evaluation, and assigned to different periodontitis groups based on percentage of affected locations. Subgingival samples were collected and analyzed by means of specific culture techniques. Anaerobic counts, frequency of detection and proportions of target pathogens were calculated. Variables were analyzed by means of Student's T-test or chi-square test. Twenty-nine subjects were recruited, of whom 17 were diagnosed with generalized periodontitis (GenP) and 12 with localized periodontitis (LocP). The most prevalent bacterial species in both groups was Prevotella intermedia (94.1% in GenP and 91.7% in LocP), followed by Porphyromonas gingivalis (88.2% in GenP and 83.3% in LocP). Total microbiota in subgingival samples was 1.3 x107 colony-forming units (CFU)/mL (standard deviation, SD=1.5 x107) and 9.6x10s CFU/mL (SD=1.1 x107) in GenP and LocP subjects, respectively, though differences were not statistically significant (p=0.222). The highest counts were observed for P gingivalis in both groups, with mean concentration 2.5x10s CFU/mL (6.1x10s) in GenP and 2.9x10s CFU/mL (5x10s) in LocP, with no statistically significant difference (p=0.879). These results suggest that relevant periodontal pathogens are found with diversity and abundance in the subgingival microbiota of adult Dominican patients with periodontitis.
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Affiliation(s)
- James R Collins
- Pontificia Universidad Católica Madre y Maestra (PUCMM), Escuela de Odontología, Departamento de Periodoncia, Santo Domingo, República Dominicana
| | - Sofía Chinea
- Universidad Complutense de Madrid, Facultad de Odontología, Grupo de investigación ETEP (Etiología y Terapéutica de las Enfermedades Periodontales), Departmento de Especialidades Clínicas Odontológicas, Madrid, Spain
| | - Rosanna J Cuello
- Pontificia Universidad Católica Madre y Maestra (PUCMM), Escuela de Odontología, Departamento de Periodoncia, Santo Domingo, República Dominicana
| | - Alba P Florian
- Pontificia Universidad Católica Madre y Maestra (PUCMM), Escuela de Odontología, Departamento de Periodoncia, Santo Domingo, República Dominicana
| | - Patricia Palma
- Universidad de Chile, Escuela de Odontología, Departamento de Patología y Medicina Oral, Santiago, Chile
| | - Nagore Ambrosio
- Universidad Complutense de Madrid, Facultad de Odontología, Grupo de investigación ETEP (Etiología y Terapéutica de las Enfermedades Periodontales), Departmento de Especialidades Clínicas Odontológicas, Madrid, Spain
| | - María J Marín
- Universidad Complutense de Madrid, Facultad de Odontología, Grupo de investigación ETEP (Etiología y Terapéutica de las Enfermedades Periodontales), Departmento de Especialidades Clínicas Odontológicas, Madrid, Spain
| | - Elena Figuero
- Universidad Complutense de Madrid, Facultad de Odontología, Grupo de investigación ETEP (Etiología y Terapéutica de las Enfermedades Periodontales), Departmento de Especialidades Clínicas Odontológicas, Madrid, Spain.
| | - David Herrera
- Universidad Complutense de Madrid, Facultad de Odontología, Grupo de investigación ETEP (Etiología y Terapéutica de las Enfermedades Periodontales), Departmento de Especialidades Clínicas Odontológicas, Madrid, Spain
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23
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Guo R, Liu H, Li X, Yang Q, Jia L, Zheng Y, Li W. Subgingival Microbial Changes During the First 3 Months of Fixed Appliance Treatment in Female Adult Patients. Curr Microbiol 2018; 76:213-221. [PMID: 30542916 DOI: 10.1007/s00284-018-1610-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 12/03/2018] [Indexed: 12/17/2022]
Abstract
Although periodontal diseases during fixed appliance treatment are a common issue, few studies have focused on the clinical and microbial factors associated with orthodontic appliances. Hence, we investigated changes in the subgingival microbial community and their association with periodontal changes at the early stage of fixed appliance treatment. Subgingival plaques from ten female patients with fixed appliances were obtained at three time points: before, 1 month and 3 months after the placement of the brackets (T0, T1 and T2). The 16S rRNA gene sequencing was used to analyze the microbial community of the subgingival plaque. The Plaque Index (PI) and Gingival Bleeding Index (GBI) were also recorded. The GBI significantly increased at T2, and the PI showed a temporary increase without a significant difference. The alpha diversity indices were stable. However, the beta diversity was significantly higher at T2 compared to T0 and T1. The relative abundance of core microbiomes at the genus level was relatively stable. Four periodontal pathogens at the species level, including Prevotella intermedia (Pi), Campylobacer rectus (Cr), Fusobacterium nucleatum (Fn), and Treponema denticola (Td), increased without significant differences. The subgingival microbial community affected by fixed appliance treatment might cause transient mild gingival inflammation.
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Affiliation(s)
- Runzhi Guo
- Department of Orthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, People's Republic of China
| | - Hao Liu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, People's Republic of China
| | - Xiaobei Li
- Department of Orthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, People's Republic of China
| | - Qiaolin Yang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, People's Republic of China
| | - Lingfei Jia
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
| | - Yunfei Zheng
- Department of Orthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, People's Republic of China.
| | - Weiran Li
- Department of Orthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, People's Republic of China.
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Kulkarni PG, Gosavi S, Haricharan PB, Malgikar S, Mudrakola DP, Turagam N, Ealla KK. Molecular Detection of Porphyromonas gingivalis in Chronic Periodontitis Patients. J Contemp Dent Pract 2018; 19:992-996. [PMID: 30150503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
AIM In the current study, Porphyromonas gingivalis was identified in chronic periodontitis patients and healthy subjects by polymerase chain reaction (PCR) and its presence correlated with the severity of clinical periodontal parameters. MATERIALS AND METHODS Subgingival plaque samples were collected with sterile curette and subjected to deoxyribonucleic acid (DNA) extraction and subsequent PCR for detection of P. gingivalis. RESULTS Porphyromonas gingivalis was detected in 60% of patients of group II (pocket depth up to 5 mm), and in 93.33% of patients of group III (pocket depth more than 5 mm). One periodontally healthy subject in group I (probing depth < 3 mm) showed the presence of P. gingivalis. CONCLUSION Detection frequency of bacterium increased significantly with increase in probing pocket depth (PPD), loss of attachment (LOA), and gingival index (GI). CLINICAL SIGNIFICANCE Porphyromonas gingivalis is strongly associated with chronic periodontitis and its detection frequency positively correlates with the severity of periodontal destruction.
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Affiliation(s)
- Pavan G Kulkarni
- Department of Oral and Maxillofacial Pathology, Kamineni Institute of Dental Sciences, Hyderabad, Telangana, India
| | - Suchitra Gosavi
- Department of Oral and Maxillofacial Pathology, Government Dental College & Hospital, Nagpur, Maharashtra, India
| | | | - Suryakanth Malgikar
- Department of Periodontics, Kamineni Institute of Dental Sciences, Hyderabad, Telangana, India
| | - Durga P Mudrakola
- Faculty of Dentistry, AIMST University, Jalan-Semeling Bedong, Malaysia
| | - Neeraja Turagam
- Faculty of Dentistry, AIMST University, Jalan-Semeling Bedong, Malaysia
| | - Kranti Kr Ealla
- Department of Oral and Maxillofacial Pathology, MNR Dental College and Hospital, Hyderabad, Telangana, India, Phone: +919849409070, e-mail:
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Costa B, Lima JEDO, Gomide MR, Rosa OPDS. Clinical and Microbiological Evaluation of the Periodontal Status of Children with Unilateral Complete Cleft Lip and Palate. Cleft Palate Craniofac J 2017; 40:585-9. [PMID: 14577819 DOI: 10.1597/01-083] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objective To compare periodontal conditions in children with and without cleft. Design Clinical examinations and microbiological analysis of 57 selected children, including 30 with unilateral complete cleft lip and palate (experimental group) and 27 without clefts (control group). Setting Hospital of Rehabilitation of Craniofacial Anomalies (HRCA) in Bauru, Sao Paulo, Brazil. Patients, Participants All children examined were healthy and between the ages of 5 and 6 years. Results The mean plaque index (PI) in the experimental group was higher (1.82 ± 0.3) than in the control group (1.63 ± 0.38), although this difference was not statistically significant. The mean gingival index (GI) in the experimental group (1.82 ± 0.38) was found to be significantly higher (p < .05) than that of the control group (0.79 ± 0.33). The cleft area in the experimental group, with a mean PI of 2.04 ± 0.58 and mean GI of 1.11 ± 0.26, compared with the posterior area, with a mean PI of 1.74 ± 0.37 and mean GI of 1.04 ± 0.26, showed a statistically significant difference only in the PI. Most of the children in both experimental and control groups presented a moderate PI degree (73.33% and 81.48%, respectively) and a high prevalence of mild gingivitis (53.33% and 70.37%, respectively). Analysis of the organisms showed that Prevotella nigrescens was detected in 16.67% of the experimental group and 11.11% of the control, whereas Porphyromonas gingivalis and Treponema denticola were not detected. Conclusion Children with clefts showed greater gingival inflammation, despite the same amount of plaque and prevalence of microorganisms.
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Affiliation(s)
- Beatriz Costa
- Hospital for Rehabilitation of Craniofacial Anomalies, University of Sao Paulo, Bauru, Sao Paulo, Brazil.
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Azizan N, Mohd Said S, Zainal Abidin Z, Jantan I. Composition and Antibacterial Activity of the Essential Oils of Orthosiphon stamineus Benth and Ficus deltoidea Jack against Pathogenic Oral Bacteria. Molecules 2017; 22:molecules22122135. [PMID: 29206142 PMCID: PMC6149972 DOI: 10.3390/molecules22122135] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 11/27/2017] [Accepted: 11/30/2017] [Indexed: 11/21/2022] Open
Abstract
In this study, the essential oils of Orthosiphon stamineus Benth and Ficus deltoidea Jack were evaluated for their antibacterial activity against invasive oral pathogens, namely Enterococcus faecalis, Streptococcus mutans, Streptococcus mitis, Streptococcus salivarius, Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis and Fusobacterium nucleatum. Chemical composition of the oils was analyzed using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The antibacterial activity of the oils and their major constituents were investigated using the broth microdilution method (minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC)). Susceptibility test, anti-adhesion, anti-biofilm, checkerboard and time-kill assays were also carried out. Physiological changes of the bacterial cells after exposure to the oils were observed under the field emission scanning electron microscope (FESEM). O. stamineus and F. deltoidea oils mainly consisted of sesquiterpenoids (44.6% and 60.9%, respectively), and β-caryophyllene was the most abundant compound in both oils (26.3% and 36.3%, respectively). Other compounds present in O. stamineus were α-humulene (5.1%) and eugenol (8.1%), while α-humulene (5.5%) and germacrene D (7.7%) were dominant in F. deltoidea. The oils of both plants showed moderate to strong inhibition against all tested bacteria with MIC and MBC values ranging 0.63–2.5 mg/mL. However, none showed any inhibition on monospecies biofilms. The time-kill assay showed that combination of both oils with amoxicillin at concentrations of 1× and 2× MIC values demonstrated additive antibacterial effect. The FESEM study showed that both oils produced significant alterations on the cells of Gram-negative bacteria as they became pleomorphic and lysed. In conclusion, the study indicated that the oils of O. stamineus and F. deltoidea possessed moderate to strong antibacterial properties against the seven strains pathogenic oral bacteria and may have caused disturbances of membrane structure or cell wall of the bacteria.
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Affiliation(s)
- Nuramirah Azizan
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
- Department of Clinical oral Biology, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
| | - Shahida Mohd Said
- Department of Periodontology, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
| | - Zamirah Zainal Abidin
- Department of Clinical oral Biology, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
| | - Ibrahim Jantan
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
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Mesa F, Lanza E, García L, Marfil-Alvarez R, Magan-Fernandez A. Polymorphism IL-1RN rs419598 reduces the susceptibility to generalized periodontitis in a population of European descent. PLoS One 2017; 12:e0186366. [PMID: 29023524 PMCID: PMC5638498 DOI: 10.1371/journal.pone.0186366] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 10/01/2017] [Indexed: 11/21/2022] Open
Abstract
Interleukin (IL) 1-ra is a potent endogenous competitive inhibitor of IL-α and β and has an anti-inflammatory role. Study objectives were: 1) to assess the associations of IL-1RN genetic single nucleotide polymorphism (SNP) (rs419598) with generalized chronic periodontitis (GCP), generalized aggressive periodontitis (GAgP), and absence of periodontitis and 2) to assess its association with the load of five periodontopathogenic bacteria and periodontal clinical variables. A cross-sectional analytic study was conducted in 123 patients with GCP, 60 patients with GAgP, and 20 controls. Reverse hybridization PCR was used for genotyping analysis to detect SNPs in IL-1A (rs1800587), IL-1B (rs1143634), and IL-1RN (rs419598) genes and for determination of the load of five periodontopathogenic bacteria. The severity and extension of periodontitis were assessed. Multinomial logistic regression and mediated regression analyses were performed. Considering results for GCP and GAgP patients together, the presence of polymorphism in IL-1A and/or IL-1B gene was associated with a higher likelihood of periodontitis, (OR = 8.11; 95%CI [1.85–35.48]), but this likelihood was reduced when IL-1RN polymorphism was also present, (OR = 5.91; 95%CI [1.08–32.27]). IL-1RN polymorphism was significantly associated with lower counts of red complex bacteria, specifically Porphyromona gingivalis, Tannerella forsythia, and Prevotella intermedia, which were associated with improved clinical outcomes. The polymorphic expression of IL-1RN (rs419598) gene may be associated with a reduced susceptibility to GAgP and GCP in populations of European descent. This effect may be mediated by a decreased load of Porphyromona gingivalis, Tannerella forsythia, and Prevotella intermedia.
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Affiliation(s)
- Francisco Mesa
- Periodontology Department, School of Dentistry, University of Granada, Granada, Spain
- * E-mail:
| | | | - Llenalia García
- SEPLIN Statistical Solutions, Spin-Off University of Granada, Granada, Spain
| | - Rafael Marfil-Alvarez
- Periodontology Department, School of Dentistry, University of Granada, Granada, Spain
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Belstrøm D, Sembler-Møller ML, Grande MA, Kirkby N, Cotton SL, Paster BJ, Holmstrup P. Microbial profile comparisons of saliva, pooled and site-specific subgingival samples in periodontitis patients. PLoS One 2017; 12:e0182992. [PMID: 28800622 PMCID: PMC5553731 DOI: 10.1371/journal.pone.0182992] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 07/27/2017] [Indexed: 11/24/2022] Open
Abstract
Objectives The purpose of this study was to compare microbial profiles of saliva, pooled and site-specific subgingival samples in patients with periodontitis. We tested the hypotheses that saliva can be an alternative to pooled subgingival samples, when screening for presence of periopathogens. Design Site specific subgingival plaque samples (n = 54), pooled subgingival plaque samples (n = 18) and stimulated saliva samples (n = 18) were collected from 18 patients with generalized chronic periodontitis. Subgingival and salivary microbiotas were characterized by means of HOMINGS (Human Oral Microbe Identification using Next Generation Sequencing) and microbial community profiles were compared using Spearman rank correlation coefficient. Results Pronounced intraindividual differences were recorded in site-specific microbial profiles, and site-specific information was in general not reflected by pooled subgingival samples. Presence of Porphyromonas gingivalis, Treponema denticola, Prevotella intermedia, Filifactor alocis, Tannerella forsythia and Parvimona micra in site-specific subgingival samples were detected in saliva with an AUC of 0.79 (sensitivity: 0.61, specificity: 0.94), compared to an AUC of 0.76 (sensitivity: 0.56, specificity: 0.94) in pooled subgingival samples. Conclusions Site-specific presence of periodontal pathogens was detected with comparable accuracy in stimulated saliva samples and pooled subgingival plaque samples. Consequently, saliva may be a reasonable surrogate for pooled subgingival samples when screening for presence of periopathogens. Future large-scale studies are needed to confirm findings from this study.
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Affiliation(s)
- Daniel Belstrøm
- Section for Periodontology, Microbiology, and Community Dentistry, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
| | - Maria Lynn Sembler-Møller
- Section for Oral Medicine, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Maria Anastasia Grande
- Section for Periodontology, Microbiology, and Community Dentistry, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Nikolai Kirkby
- Department of Medical Microbiology, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Bruce J. Paster
- The Forsyth Institute, Cambridge, MA, United States of America
- Department of Oral Medicine, Infection & Immunity, Harvard School of Dental Medicine, Boston, MA, United States of America
| | - Palle Holmstrup
- Section for Periodontology, Microbiology, and Community Dentistry, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Guarnieri R, Rappelli G, Piemontese M, Procaccini M, Quaranta A. A Double-Blind Randomized Trial Comparing Implants with Laser-Microtextured and Machined Collar Surfaces: Microbiologic and Clinical Results. Int J Oral Maxillofac Implants 2017; 31:1117-25. [PMID: 27632268 DOI: 10.11607/jomi.4563] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE The purpose of this study was to compare the clinical outcome of and determine the differences in periodonto-pathogenic microbiota around two types of implant collar surfaces: laser-microtextured (test) vs machined (control). MATERIALS AND METHODS Seventeen patients (11 periodontally healthy, and 6 periodontally compromised) were selected to receive the two different implants, placed randomly, in two edentulous sites. Six months following the surgical placement of the dental implants, subgingival plaque samples were collected using paper points from the peri-implant sulcus and from the sulcus of an adjacent tooth. The presence of five putative periodontal pathogens, namely, Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, Treponema denticola, and Tannerella forsythensis, was assessed using real-time polymerized chain reaction (RT-PCR). Peri-implant parameters and intraoral radiographs were recorded up to 1 year after abutment connection. RESULTS In the main population, and in the periodontally compromised subgroup, the total number of periodontal pathogens around test implant sites was lower than control implant sites and adjacent tooth sites, with a statistically significant difference (P < .05). In periodontally healthy patients, the mean probing pocket depth for the test implant was 1.31 ± 0.51 mm, compared with 2.66 ± 0.83 mm for the control implant, while in periodontally compromised patients, it was 1.61 ± 0.58 mm for the test implant, compared with a mean value of 2.84 ± 1.0 mm for the control implant. CONCLUSION Implants with a laser-microtextured collar surface are not more vulnerable to pathogenic microflora colonization than implants with a machined collar surface. In both of the subgroups of patients (periodontally healthy and periodontally compromised), implants with a laser-microtextured collar surface have a better clinical outcome at 1 year of loading, compared with implants with a machined collar surface.
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Azzi L, Rania S, Vinci R, Spadari F, Croveri F, Scognamiglio C, Farronato D, Tettamanti L, Tagliabue A, Silvestre-Rangil J, Bellintani C. Periodontal microbioma and rheumatoid arthritis: The role of Porhyromonas gingivalis. J BIOL REG HOMEOS AG 2017; 31:97-103. [PMID: 28691459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Rheumatoid Arthritis is a disease, which can be described as an autoimmune response after molecular mimicry caused by infective agents. The current study aims at evaluating the correlation between Rhematoid Arthritis (RA) and Periodontal Disease (PD), with special attention to the microbioma detected in the gums. Thirty-four patients with RD were recruited into the current study. Among rheumatic parameters, Rheumatoid Factor (RF), anti-citrullinated protein antibody (CCP), HLA-BDR1 and DAS28 were collected. A dental clinician evaluated the periodontal screening record (PSR). Afterwards, 1 paper cone was inserted for 30 seconds into the gingival sulcus then sent to the laboratory for evaluation. Quantitative PCR of 16S rRNA genes was performed with the hydrolysis probes method to identify and evaluate the amount Porphyromonas gingivalis, Tannerella forsythensis, Treponema denticola, Fusobacterium nucleatum and Campylobacter rectus. There were no statistical differences in the composition of oral microbioma between PSR groups. There were no statistical significant differences between bacterial loads and serum values. On the contrary, a positive correlation was found between the presence of Porphyromonas gingivalis in periodontal pockets on one side and RF and CCP on the other. Therefore, the presence of Porhyromonas gingivalis in periodontal pockets is associated to RA inflammatory indices.
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Affiliation(s)
- L Azzi
- Department of Medicine and Surgery, University of Insubria, ASST dei Sette Laghi, Dental Clinic, Unit of Oral Pathology, Varese, Italy
| | - S Rania
- ASST Valle Olona, Dental Clinic, Unit of Oral Surgery and Medicine, Gallarate, Varese, Italy
| | - R Vinci
- Oral Surgery, Università Vita-Salute San Raffaele, Milan Italy
| | - F Spadari
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Ospedale Maggiore Policlinico, Unit of Oral Pathology and Medicine, Milan
| | - F Croveri
- Department of Medicine and Surgery, University of Insubria, ASST dei Sette Laghi, Dental Clinic, Unit of Oral Pathology, Varese, Italy
| | - C Scognamiglio
- Department of Medicine and Surgery, University of Insubria, ASST dei Sette Laghi, Dental Clinic, Unit of Oral Pathology, Varese, Italy
| | - D Farronato
- Department of Medicine and Surgery, University of Insubria, ASST dei Sette Laghi, Dental Clinic, Unit of Oral Pathology, Varese, Italy
| | - L Tettamanti
- Department of Medicine and Surgery, University of Insubria, ASST dei Sette Laghi, Dental Clinic, Unit of Oral Pathology, Varese, Italy
| | - A Tagliabue
- Department of Medicine and Surgery, University of Insubria, ASST dei Sette Laghi, Dental Clinic, Unit of Oral Pathology, Varese, Italy
| | - J Silvestre-Rangil
- Stomatology and Oral Surgery, Dr Peset University Hospital, Department of Stomatology, University of Valencia, Spain
| | - C Bellintani
- ASST Valle Olona, Unit of Rheumatology and Immunopathology, Gallarate, Varese, Italy
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Mikhailova ES, Koroleva IV, Kolesnikova PA, Ermolaeva LA, Suvorov AN. [The characteristics of microbiota of periodontal recesses in smoking patients with chronic generalized periodontitis]. Klin Lab Diagn 2017; 62:107-111. [PMID: 30615398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The clinical examination of 36 tobacco smokers with chronic generalized periodontitis of light, average and severe degree was carried out. The examination established poor hygienic condition of oral cavity, less expressed inflammatory reaction of tissues of periodont and predominance of occurrences of destruction of alveolar portion of bone as compared with the group of 59 non-smoking patients with chronic generalized periodontitis of light, average and severe degree. The study demonstrated higher rate of detection of T. forsythia in smokers as compared with non-smoking patients at all stages of of development of chronic generalized periodontitis. Under light stage of chronic generalized periodontitis increasing of rate of detection of T. forsythia more than twice was registered. P.gigngivalis and P.intermedia were detected in smoking patients with light stage of chronic generalized periodontitis either in the same values or more rarely as compared with non-smokers. In the group of smokers with average stage of chronic generalized periodontitis increasing of rate of occurrence of association of T. forsythia-P. gigngivalis-P. intermedia occurred more than five times in comparison with non-smokers. The obtained results indicate on relationship between alterations of microbiota and aggressive development of chronic generalized periodontitis in smoking patients and on development in periodontal recesses of smokers of favorable conditions for growth of T. forsythia. The presence of T. forsythia is a significant factor of development of destructive processes in tissues of periodont.
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Äyräväinen L, Leirisalo-Repo M, Kuuliala A, Ahola K, Koivuniemi R, Meurman JH, Heikkinen AM. Periodontitis in early and chronic rheumatoid arthritis: a prospective follow-up study in Finnish population. BMJ Open 2017; 7:e011916. [PMID: 28143836 PMCID: PMC5293865 DOI: 10.1136/bmjopen-2016-011916] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES To investigate the association between rheumatoid arthritis (RA) and periodontitis with special emphasis on the role of antirheumatic drugs in periodontal health. DESIGN Prospective follow-up study. Patients with early untreated RA and chronic active RA were examined at baseline and 16 months later. Controls were examined once. SETTINGS AND PARTICIPANTS The study was conducted in Finland from September 2005 to May 2014 at the Helsinki University Hospital. Overall, 124 participants were recruited for dental and medical examinations: 53 were patients with early disease-modifying antirheumatic drug (DMARD) naїve RA (ERA), 28 were patients with chronic RA (CRA) with insufficient response to conventional DMARDs. After baseline examination, patients with ERA started treatment with synthetic DMARDs and patients with CRA with biological DMARDs. Controls were 43 age-matched, gender-matched and community-matched participants. OUTCOME MEASURES Degree of periodontitis (defined according to the Center for Disease Control and Prevention and the American Academy of Periodontology). Prevalence of periodontal bacteria (analysed from plaque samples), clinical rheumatological status by Disease Activity Score, 28-joint count (DAS28), function by Health Assessment Questionnaire (HAQ) and treatment response by European League Against Rheumatism (EULAR) criteria. RESULTS Moderate periodontitis was present in 67.3% of patients with ERA, 64.3% of patients with CRA and 39.5% of control participants (p=0.001). Further, patients with RA had significantly more periodontal findings compared with controls, recorded with common periodontal indexes. In the re-examination, patients with RA still showed poor periodontal health in spite of treatment with DMARDs after baseline examination. The prevalence of Porphyromonas gingivalis was higher in patients with ERA with periodontal probing depth ≥4 mm compared with patients with CRA and controls. Antirheumatic medication did not seem to affect the results. CONCLUSIONS Moderate periodontitis was more frequent in patients with RA than in controls. Patients with ERA and CRA exhibited poorer periodontal health parameters when compared with controls. There was no association between antirheumatic treatment and periodontal parameters.
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Affiliation(s)
- Leena Äyräväinen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Marjatta Leirisalo-Repo
- Department of Rheumatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Antti Kuuliala
- Department of Bacteriology and Immunology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Kirsi Ahola
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Riitta Koivuniemi
- Department of Rheumatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jukka H Meurman
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Anna Maria Heikkinen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
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Al-Rawi N, Al-Marzooq F. The Relation between Periodontopathogenic Bacterial Levels and Resistin in the Saliva of Obese Type 2 Diabetic Patients. J Diabetes Res 2017; 2017:2643079. [PMID: 29138754 PMCID: PMC5613684 DOI: 10.1155/2017/2643079] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 07/16/2017] [Accepted: 07/31/2017] [Indexed: 01/09/2023] Open
Abstract
This study aims to investigate the relation between resistin and periodontopathogenic bacterial levels in the saliva of obese adults compared to healthy control and to examine whether salivary resistin can serve as a biomarker of type 2 diabetes in obese patients. A total of 78 saliva samples were collected from patients attending to the University Dental Hospital, Sharjah, UAE. The patients were divided into three equal groups: obese diabetics, obese nondiabetics, and nonobese nondiabetic control. Salivary resistin was measured using ELISA. The levels of bacterial species associated with periodontitis (Treponema denticola, Porphyromonas gingivalis, Tannerella forsythia, and Actinobacillus actinomycetemcomitans) and gingivitis (Fusobacterium spp.) were measured using real-time PCR. Both salivary resistin and periodontopathogenic bacteria including Fusobacterium spp., P. gingivalis, and T. forsythia were detected in significantly higher quantities in the obese patients (diabetics and nondiabetics) than nonobese nondiabetic control. Resistin concentrations were significantly correlated with BMI; however, its level was not correlated with the blood glucose. In this study, high salivary resistin was associated with obesity, which is a major predisposing factor for type 2 diabetes and also a risk factor for oral diseases. The high levels of salivary periodontopathogenic bacteria could upregulate the local release of salivary resistin in obese people.
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Affiliation(s)
- Natheer Al-Rawi
- College of Dental Medicine, University of Sharjah, Sharjah, UAE
| | - Farah Al-Marzooq
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE
- *Farah Al-Marzooq:
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Abstract
Bacterial deposits, smoking, and host genetic factors play a major role in an individual’s predisposition to periodontitis. Bacterial components are recognized by CD14 and toll-like receptor 4 (TLR4), resulting in a NF-κB-based inflammatory response. We hypothesized that functional CD14 and TLR4 polymorphisms contribute to periodontitis susceptibility. We aimed to investigate the occurrence of CD14-260C>T, TLR4 299Asp>Gly, and 399Thr>Ile gene polymorphisms in adult periodontititis. DNA was collected from 100 patients with severe periodontitis and from 99 periodontally healthy controls. The gene polymorphisms were determined by the PCR technique. The presence of the periodontal pathogens Porphyromonas gingivalis and Actinobacillus actinomycetemcomitans, and whether the subjects smoked, was included in the analyses. The CD14-260T/T genotype was found in 34.0% of periodontitis patients and in 20.2% of controls. Logistic regression analysis adjusted for gender, age, smoking, and prevalence of P. gingivalis and A. actinomycetemcomitans showed an association between the CD14-260T/T genotype and periodontitis (P = 0.004, OR 3.0, 95% CI 1.4–6.9). We conclude that the CD14-260T/T genotype contributes to the susceptibility to severe periodontitis in Dutch Caucasians.
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Affiliation(s)
- M L Laine
- Department of Periodontology, Section of Oral Microbiology, Academic Centre for Dentistry Amsterdam, Van der Boechorsstraat 7, 1081 BT Amsterdam, The Netherlands.
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Faria Carrada C, Almeida Ribeiro Scalioni F, Evangelista Cesar D, Lopes Devito K, Ribeiro LC, Almeida Ribeiro R. Salivary Periodontopathic Bacteria in Children and Adolescents with Down Syndrome. PLoS One 2016; 11:e0162988. [PMID: 27727287 PMCID: PMC5058504 DOI: 10.1371/journal.pone.0162988] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 08/31/2016] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To assess and compare salivary periodontopathic bacteria between groups of Down syndrome and non-Down syndrome children and adolescents. MATERIALS AND METHODS This study included a sample of 30 Down syndrome children and adolescents (G-DS) and 30 age- and sex-matched non-Down syndrome subjects (G-ND). Clinical examination determined the gingival bleeding index (GBI) and plaque index. Unstimulated whole saliva samples were collected from all participants. The fluorescence in situ hybridization (FISH) technique identified the presence and density of eight periodontopathic bacteria in saliva. The statistical analysis included chi-square and Mann-Whitney U tests. RESULTS In the G-DS group, bleeding on probing was more frequent (p = 0.037) and higher densities of Campylobacter rectus (p = 0.013), Porphyromonas gingivalis (p = 0.025), Treponema denticola (p = 0.026), Fusobacterium nucleatum (p = 0.013), Prevotella intermedia (p = 0.001) and Prevotella nigrescens (p = 0.008) were observed. Besides, in the G-DS, the densities of bacteria from the orange complex were significantly higher in the age group 3-7 years for F. nucleatum (p = 0.029), P. intermedia (p = 0.001) and P. nigrescens (p = 0.006). C. rectus was higher in the age group 8-12 years (p = 0.045). CONCLUSION The results showed that children and adolescents with Down syndrome have higher susceptibility to periodontal disease and number of periodontopathic bacteria.
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Affiliation(s)
- Camila Faria Carrada
- School of Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
- * E-mail:
| | - Flávia Almeida Ribeiro Scalioni
- Department of Pediatric Dentistry, School of Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Dionéia Evangelista Cesar
- Department of Ecology and Molecular Biology of Microorganisms, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Karina Lopes Devito
- Department of Dental Clinic, School of Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Luiz Cláudio Ribeiro
- Department of Statistics, Institute of Exact Sciences, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Rosangela Almeida Ribeiro
- Department of Pediatric Dentistry, School of Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
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Mehlotra RK, Hall NB, Willie B, Stein CM, Weinberg A, Zimmerman PA, Vernon LT. Associations of Toll-Like Receptor and β-Defensin Polymorphisms with Measures of Periodontal Disease (PD) in HIV+ North American Adults: An Exploratory Study. PLoS One 2016; 11:e0164075. [PMID: 27727278 PMCID: PMC5058471 DOI: 10.1371/journal.pone.0164075] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 09/19/2016] [Indexed: 11/28/2022] Open
Abstract
Polymorphisms in toll-like receptor (TLR) and β-defensin (DEFB) genes have been recognized as potential genetic factors that can influence susceptibility to and severity of periodontal diseases (PD). However, data regarding associations between these polymorphisms and PD are still scarce in North American populations, and are not available in HIV+ North American populations. In this exploratory study, we analyzed samples from HIV+ adults (n = 115), who received primary HIV care at 3 local outpatient HIV clinics and were monitored for PD status. We genotyped a total of 41 single nucleotide polymorphisms (SNPs) in 8 TLR genes and copy number variation (CNV) in DEFB4/103A. We performed regression analyses for levels of 3 periodontopathogens in subgingival dental plaques (Porphyromonas gingivalis [Pg], Treponema denticola [Td], and Tannerella forsythia [Tf]) and 3 clinical measures of PD (periodontal probing depth [PPD], gingival recession [REC], and bleeding on probing [BOP]). In all subjects combined, 2 SNPs in TLR1 were significantly associated with Td, and one SNP in TLR2 was significantly associated with BOP. One of the 2 SNPs in TLR1 was significantly associated with Td in Caucasians. In addition, another SNP in TLR1 and a SNP in TLR6 were also significantly associated with Td and Pg, respectively, in Caucasians. All 3 periodontopathogen levels were significantly associated with PPD and BOP, but none was associated with REC. Instrumental variable analysis showed that 8 SNPs in 6 TLR genes were significantly associated with the 3 periodontopathogen levels. However, associations between the 3 periodontopathogen levels and PPD or BOP were not driven by associations with these identified SNPs. No association was found between DEFB4/103A CNV and any periodontopathogen level or clinical measure in all samples, Caucasians, or African Americans. Our exploratory study suggests a role of TLR polymorphisms, particularly TLR1 and TLR6 polymorphisms, in PD in HIV+ North Americans.
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Affiliation(s)
- Rajeev K. Mehlotra
- Center for Global Health and Diseases, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
- * E-mail: (RKM); (LTV)
| | - Noemi B. Hall
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Barne Willie
- Center for Global Health and Diseases, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
| | - Catherine M. Stein
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States of America
- Center for Proteomics and Bioinformatics, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
| | - Aaron Weinberg
- Department of Biological Sciences, Case Western Reserve University School of Dental Medicine, Cleveland, Ohio, United States of America
| | - Peter A. Zimmerman
- Center for Global Health and Diseases, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
| | - Lance T. Vernon
- Department of Pediatric and Community Dentistry, Case Western Reserve University School of Dental Medicine, Cleveland, Ohio, United States of America
- * E-mail: (RKM); (LTV)
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Canullo L, Peñarrocha-Oltra D, Covani U, Rossetti PHO. Microbiologic and Clinical Findings of Implants in Healthy Condition and with Peri-Implantitis. Int J Oral Maxillofac Implants 2016; 30:834-42. [PMID: 26252036 DOI: 10.11607/jomi.3947] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE To compare implants in healthy conditions and implants with peri-implantitis with regard to their clinical parameters and the microbiologic composition at the peri-implant sulcus, inside the implant connection, and the gingival sulcus of neighboring teeth. MATERIALS AND METHODS A cross-sectional study was performed including consecutive patients with implants in healthy conditions and with peri-implantitis. Clinical parameters for which patients were screened included bleeding on probing, pocket depth, and plaque index at six sites. Samples for microbiologic analysis were obtained from three locations: the peri-implant sulcus, inside the implant connection, and the gingival sulcus of neighboring teeth. Quantitative real-time polymerase chain reaction (PCR) was carried out for total counts of 10 microorganisms: Aggregatibacter actinomycetemcomitans, Porphyromona gingivalis, Tanerella forsythia, Tanerella denticola, Prevotela intermedia, Peptostreptococcus micros, Fusobacterium nucleatum, Campylobacter rectus, Eikenella corrodens, and Candida albicans. The response variables were the percentage of positive sites and total bacterial counts. RESULTS One hundred twenty-two implants in 57 patients were analyzed in the healthy group and 113 implants in 53 patients in the peri-implantitis group. Differences between the groups were statistically significant for bruxism, probing pocket depth, bleeding on probing, and radiographic bone level. Orange complex species (P intermedia, P micros, F nucleatum) were the most prevalent in the three types of sites for both groups, and prevalence values were higher in the peri-implantitis group. Differences in prevalence between groups were more marked inside the connection than in the peri-implant sulcus. Absolute loads of most microbes and total bacterial counts were higher for the peri-implantitis group in the three locations. Again, differences were bigger inside the connection than at the peri-implant sulcus. Significant interactions were found for prevalence and absolute microbial loads between groups and locations, and for the interaction of group × location. CONCLUSION Clinical and microbiologic differences were observed between healthy subjects and those with peri-implantitis. Microbiologic differences between groups were more marked inside the connection than in the peri-implant sulcus. The potential role of the implant connection as a microbial reservoir for peri-implant diseases and in the outcome of their treatment should be confirmed with further studies.
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Lam RHW, Cui X, Guo W, Thorsen T. High-throughput dental biofilm growth analysis for multiparametric microenvironmental biochemical conditions using microfluidics. Lab Chip 2016; 16:1652-62. [PMID: 27045372 DOI: 10.1039/c6lc00072j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Dental biofilm formation is not only a precursor to tooth decay, but also induces more serious systematic health problems such as cardiovascular disease and diabetes. Understanding the conditions promoting colonization and subsequent biofilm development involving complex bacteria coaggregation is particularly important. In this paper, we report a high-throughput microfluidic 'artificial teeth' device offering controls of multiple microenvironmental factors (e.g. nutrients, growth factors, dissolved gases, and seeded cell populations) for quantitative characteristics of long-term dental bacteria growth and biofilm development. This 'artificial teeth' device contains multiple (up to 128) incubation chambers to perform parallel cultivation and analyses (e.g. biofilm thickness, viable-dead cell ratio, and spatial distribution of multiple bacterial species) of bacteria samples under a matrix of different combinations of microenvironmental factors, further revealing possible developmental mechanisms of dental biofilms. Specifically, we applied the 'artificial teeth' to investigate the growth of two key dental bacteria, Streptococci species and Fusobacterium nucleatum, in the biofilm under different dissolved gas conditions and sucrose concentrations. Together, this high-throughput microfluidic platform can provide extended applications for general biofilm research, including screening of the biofilm properties developing under combinations of specified growth parameters such as seeding bacteria populations, growth medium compositions, medium flow rates and dissolved gas levels.
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Affiliation(s)
- Raymond H W Lam
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Hong Kong. and Centre for Robotics and Automation, City University of Hong Kong, Hong Kong and Centre for Biosystems, Neuroscience and Nanotechnology, City University of Hong Kong, Hong Kong
| | - Xin Cui
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Hong Kong.
| | - Weijin Guo
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Hong Kong.
| | - Todd Thorsen
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Boston, USA.
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Caccianiga G, Rey G, Paiusco A, Lauritano D, Cura F, Ormianer Z, Carinci F. Oxygen high level laser therapy is efficient in treatment of chronic periodontitis: a clinical and microbiological study using PCR analysis. J BIOL REG HOMEOS AG 2016; 30:87-97. [PMID: 27469554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In periodontology, lasers have been suggested for the photodynamic therapy (PDT). Such therapy can be defined as the inactivation of cells, microorganisms or molecules induced by light and not by heat. The aim of our study is to assess the effect of Oxygen high-level laser therapy (OHLLT) in removing all bacterial deposits on root or implant surface by means of mechanical instrumentation and laser irradiation. OHLLT has two effects on targeted bacteria and tissues, decontamination and biostimulation. A total of 33 patients were randomly selected with a diagnosis of chronic periodontitis. The patients enrolled were 16 females and 17 males, six smokers and 4 diabetic patients. For each patient a periodontal charting was performed, assessing probing depth, plaque index and bleeding on probing at baseline and after 6 months. Microbiological analysis were performed with PCR Real Time, using paper tips to withdraw gingival fluid in periodontal pockets before and after treatment, at baseline and after 6 months. All patients were treated with OHLLT at baseline, after 1 week, after 2 weeks and every month for 6 months. After 6 months, all periodontal pockets were treated successfully, without complications and no significant differences in results. All clinical parameters showed an improvement, with a decrease both of plaque index (average decrease of 75%), bleeding on probing (average decrease of 62%) and probing depth (average decrease of 1.8 mm). After the treatment, a remarkable decrease in bacteria amount, both for each species and for total bacteria was observed except for Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis demonstrating that this laser protocol is effective on periodontitis treatment. OHLLT is efficient in treatment of chronic periodontitis as demonstrated by clinical and microbiological parameters, going beyond the traditional periodontal therapy.
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Affiliation(s)
- G Caccianiga
- School of Medicine and Surgery, University of Milan-Bicocca, Milan, Italy
| | - G Rey
- Ecole Dentaire Garancière, University of Paris Diderot, France
| | - A Paiusco
- School of Medicine and Surgery, University of Milan-Bicocca, Milan, Italy
| | - D Lauritano
- School of Medicine and Surgery, University of Milan-Bicocca, Milan, Italy
| | - F Cura
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Z Ormianer
- Department of Oral Rehabilitation, Tel-Aviv University, Tel-Aviv, Israel
| | - F Carinci
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
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Sender-Janeczek A, Ziętek M. The Distribution of Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola and Aggregatibacter actinomycetemcomitans in Patients with Alcoholic Disease: A Pilot Study. ADV CLIN EXP MED 2016; 25:243-8. [PMID: 27627556 DOI: 10.17219/acem/61079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 08/08/2015] [Accepted: 12/21/2015] [Indexed: 11/24/2022]
Abstract
BACKGROUND Both drinking and periodontal disease are serious health and social problems. Findings on the effect of alcohol consumption on periodontal disease are inconclusive. OBJECTIVES The aim of this study was to evaluate, in patients with alcoholic disease, the composition of the main periopathogens: Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola and Aggregatibacter actinomycetemcomitans. MATERIAL AND METHODS The study was conducted on 25 alcoholics from the Department of Alcohol Addiction Closed Treatment and 25 non-alcoholic patients from the Department of Periodontology, Wroclaw Medical University. Subgingival biofilm samples were obtained from the 4 deepest sites (≥ 4 mm). The presence of 4 bacterial taxa was analysed using the PCR technique. RESULTS The prevalence of bacterial species was significantly different between groups. Alcoholics showed significantly higher mean DNA counts for Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis and Treponema denticola. In the qualitative analysis, no difference was observed between the groups. The study showed no statistically significant association between the amount of alcohol consumed and the composition of subgingival flora in patients suffering from alcoholism. CONCLUSIONS Alcoholics demonstrated the presence of pathogenic bacteria in similar amounts to people diagnosed with chronic periodontal disease, but showed significantly higher mean DNA counts for Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis and Treponema denticola but there is no correlation between the amount of alcohol consumption and the level of periopathogens.
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Affiliation(s)
| | - Marek Ziętek
- Department of Periodontology, Wroclaw Medical University, Poland
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Zorina OA, Aimadinova NK, Basova AA, Rebrikov DV. [The relationship of molecular genetic markers with clinical signs and risk factors of periodontitis]. Stomatologiia (Mosk) 2016; 95:12-18. [PMID: 27876716 DOI: 10.17116/stomat201695512-18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The study revealed positive correlation between bleeding on probing and teeth loss risk with periodontal hypercolonization by Porphyromonas gingivalis, Prevotella intermedia and Treponema denticola. Pathological tooth mobility was associated with hypercolonization by P. intermedia and Tannerella forsythensis. Expression of IL8, TNF-α, MMP8 and MMP9 genes was also assessed in patient groups divided according to the depth of periodontal pockets and-the severity of chronic periodontitis revealing IL8 as positive diagnostic marker.
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Affiliation(s)
- O A Zorina
- Sechenov First Moscow State Medical University, Moscow, Russia; Central Research Institute of Dentistry and Maxillofacial Surgery of Ministry of Health of Russian Federation, Moscow, Russia
| | - N K Aimadinova
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - A A Basova
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - D V Rebrikov
- Pirogov Russian National Research Medical University, Moscow, Russia
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Tsarev VN, Nikolaeva EN, Iagodina EV, Trefilova YA, Ippolitov EV. [THE MOLECULAR TECHNIQUES OF DIAGNOSTIC OF GINGIVITIS AND PERIODONTITIS IN HIV-INFECTED PATIENTS]. Klin Lab Diagn 2016; 61:54-59. [PMID: 27183732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The examination was carried out in the Moscow clinical infectious hospital No 2 concerning 102 patients with verified diagnosis "AIDS-infection" and seropositive according results of detection of anti-HIV-antibodies in blood serum. The study was organized to analyze rate ofcolonization of gums with virulent anaerobic bacteria in HIV-infected (polymerase chain reaction) and antibodies to HIV in gingival fluid (enzyme-linked immunosorbent assay). It is established that in HIV-infected patients, in scrape from gingival sulcus dominate anaerobic bacteria P. gigngivalis and A. ctinomycetemcomitans and in case of periodontitis--P. gingivalis and T. forsythia. The received data permits recommending the test-system "Multident-5" for polymerase chain reaction diagnostic. The reagents kit "Calypte®HIV-1/2"--for enzyme-linked immunosorbent assay gingival fluid. The results of polymerase chain reaction and enzyme-linked immunosorbent assay have no impact of concomitant stomatological (periodontitis, gingivitis) and somatic pathology.
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Ippolitov EV, Didenko LV, Tzarev VN. [THE CHARACTERISTICS OF MORPHOLOGY OF BIOFILM OF PERIODONTIUM UNDER INFLAMMATORY DISEASES OF GUMS (CHRONIC CATARRHAL GINGIVITIS, CHRONIC PERIODONTITIS, CANDIDA-ASSOCIATED PERIODONTITIS) ACCORDING RESULTS OF ELECTRONIC MICROSCOPY]. Klin Lab Diagn 2015; 60:59-64. [PMID: 27032256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The study was carried out to analyze morphology of biofilm of periodontium and to develop electronic microscopic criteria of differentiated diagnostic of inflammatory diseases of gums. The scanning electronic microscopy was applied to analyze samples of bioflm of periodont from 70 patients. Including ten patients with every nosologic form of groups with chronic catarrhal periodontitis. of light, mean and severe degree, chronic catarrhal gingivitis, Candida-associated paroperiodontitis and 20 healthy persons with intact periodontium. The analysis was implemented using dual-beam scanning electronic microscope Quanta 200 3D (FEI company, USA) and walk-through electronic micJEM 100B (JEOL, Japan). To detect marker DNA of periodont pathogenic bacteria in analyzed samples the kit of reagentsfor polymerase chain reaction "MultiDent-5" ("GenLab", Russia). The scanning electronic microscopy in combination with transmission electronic microscopy and polymerase chain reaction permits analyzing structure, composition and degree of development of biofilm of periodontium and to apply differentiated diagnostic of different nosologic forms of inflammatory diseases of periodontium, including light form of chronic periodontitis and gingivitis. The electronic microscopical indications of diseases ofperiodontium of inflammatory character are established: catarrhal gingivitis, (coccal morphological alternate), chronic periodontitis (bacillary morphological alternate), Candida-associated periodontitis (Candida morphological alternate of biofilm ofperiodontium).
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Tamarova ER, Baimiev AK, Shvetz KY, Mavzyutov AR. [THE MOLECULAR GENETIC CHARACTERISTIC OF SPECIES CONTENT OF SALIVA AND GINGIVAL RECESS UNDER PERIODONTITIS]. Klin Lab Diagn 2015; 60:56-59. [PMID: 27032255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The examination was carried out of samplings of 110 patients with periodontitis (observation group) and 60 patients without pathology of periodont (comparison group). The polymerase chain reaction was used to analyze samples of saliva and contents of periodontal recesses for detecting species-specific DNA fragments of Porphymmonas gigngivalis, Streptococcus macacae, S. mutans, S. oralis, S. salivarius, S. sangis, S. sobrinus, Treponema denticola. In patients with periodontitis S. mutans, S. oralis S. sobrinus were reliably more often detected in the content of periodontal recesses and S. mutans, S. sobrinus i in saliva. In the observation group the rate of detection of association S. mutans--S. oralis--S. sangis--S. sobrinus was significantly exceeded (up to 15.6%, X2 = 9.1, p = 0.004). In ten days of effective treatment of periodontitis reliable decreastng of rate of detection of S. wasoralis, S. sobrinus was observed in contents of periodontal recesses but not in of saliva. The detection of S.sobrinus using technique of polymerase chain reaction in contents of periodontal recesses and/or saliva of patients with periodontitis has a diagnostic value. The detection of S.sobrinus in contents of periodontal recesses is significant both in monoculture and in association S. mutans--S. oralis--S. sangis--S.sobrinus. The absence of S. sobrinus in contents of periodontal recesses testifies effectiveness of treatment of main disease (periodontitis).
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Chukkapalli SS, Velsko IM, Rivera-Kweh MF, Zheng D, Lucas AR, Kesavalu L. Polymicrobial Oral Infection with Four Periodontal Bacteria Orchestrates a Distinct Inflammatory Response and Atherosclerosis in ApoE null Mice. PLoS One 2015; 10:e0143291. [PMID: 26619277 PMCID: PMC4664240 DOI: 10.1371/journal.pone.0143291] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 11/02/2015] [Indexed: 12/17/2022] Open
Abstract
Periodontal disease (PD) develops from a synergy of complex subgingival oral microbiome, and is linked to systemic inflammatory atherosclerotic vascular disease (ASVD). To investigate how a polybacterial microbiome infection influences atherosclerotic plaque progression, we infected the oral cavity of ApoEnull mice with a polybacterial consortium of 4 well-characterized periodontal pathogens, Porphyromonas gingivalis, Treponema denticola, Tannerealla forsythia and Fusobacterium nucleatum, that have been identified in human atherosclerotic plaque by DNA screening. We assessed periodontal disease characteristics, hematogenous dissemination of bacteria, peripheral T cell response, serum inflammatory cytokines, atherosclerosis risk factors, atherosclerotic plaque development, and alteration of aortic gene expression. Polybacterial infections have established gingival colonization in ApoEnull hyperlipidemic mice and displayed invasive characteristics with hematogenous dissemination into cardiovascular tissues such as the heart and aorta. Polybacterial infection induced significantly higher levels of serum risk factors oxidized LDL (p < 0.05), nitric oxide (p < 0.01), altered lipid profiles (cholesterol, triglycerides, Chylomicrons, VLDL) (p < 0.05) as well as accelerated aortic plaque formation in ApoEnull mice (p < 0.05). Periodontal microbiome infection is associated with significant decreases in Apoa1, Apob, Birc3, Fga, FgB genes that are associated with atherosclerosis. Periodontal infection for 12 weeks had modified levels of inflammatory molecules, with decreased Fas ligand, IL-13, SDF-1 and increased chemokine RANTES. In contrast, 24 weeks of infection induced new changes in other inflammatory molecules with reduced KC, MCSF, enhancing GM-CSF, IFNγ, IL-1β, IL-13, IL-4, IL-13, lymphotactin, RANTES, and also an increase in select inflammatory molecules. This study demonstrates unique differences in the host immune response to a polybacterial periodontal infection with atherosclerotic lesion progression in a mouse model.
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Affiliation(s)
- Sasanka S. Chukkapalli
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida, United States of America
| | - Irina M. Velsko
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida, United States of America
| | - Mercedes F. Rivera-Kweh
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida, United States of America
| | - Donghang Zheng
- Division of Cardiovascular Medicine, Department of Medicine, Gainesville, Florida, United States of America
| | - Alexandra R. Lucas
- Division of Cardiovascular Medicine, Department of Medicine, Gainesville, Florida, United States of America
- Department of Molecular Genetics & Microbiology, College of Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Lakshmyya Kesavalu
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida, United States of America
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, United States of America
- * E-mail:
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Oliveira FAF, Forte CPF, Silva PGDB, Lopes CB, Montenegro RC, Santos ÂKCRD, Sobrinho CRMR, Mota MRL, Sousa FB, Alves APNN. Molecular Analysis of Oral Bacteria in Heart Valve of Patients With Cardiovascular Disease by Real-Time Polymerase Chain Reaction. Medicine (Baltimore) 2015; 94:e2067. [PMID: 26632711 PMCID: PMC5058980 DOI: 10.1097/md.0000000000002067] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 10/16/2015] [Accepted: 10/23/2015] [Indexed: 11/25/2022] Open
Abstract
Structural deficiencies and functional abnormalities of heart valves represent an important cause of cardiovascular morbidity and mortality, and a number of diseases, such as aortic stenosis, have been recently associated with infectious agents. This study aimed to analyze oral bacteria in dental plaque, saliva, and cardiac valves of patients with cardiovascular disease. Samples of supragingival plaque, subgingival plaque, saliva, and cardiac valve tissue were collected from 42 patients with heart valve disease. Molecular analysis of Streptococcus mutans, Prevotella intermedia, Porphyromonas gingivalis, and Treponema denticola was performed through real-time PCR. The micro-organism most frequently detected in heart valve samples was the S. mutans (89.3%), followed by P. intermedia (19.1%), P. gingivalis (4.2%), and T. denticola (2.1%). The mean decayed, missing, filled teeth (DMFT) was 26.4 ± 6.9 (mean ± SD), and according to the highest score of periodontal disease observed for each patient, periodontal pockets > 4 mm and dental calculus were detected in 43.4% and 34.7% of patients, respectively. In conclusion, oral bacteria, especially S. mutans, were found in the cardiac valve samples of patients with a high rate of caries and gingivitis/periodontitis.
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Affiliation(s)
- Francisco Artur Forte Oliveira
- From the Department of Stomatology and Oral Pathology, School of Dentistry, Federal University of Ceara, Fortaleza, Ceará (FAFO, CPF, PGBS, MRLM, FBS); Department of Oral Pathology, School of Dentistry, Federal University of Ceara, Fortaleza, Ceará (APNNA); Department of Clinical Medicine, School of Medicine, Federal University of Ceara, Fortaleza, Ceará (CRMRS); Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil (CBL, AKCRS); Human Cytogenetics Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil (RCM)
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Nayar G, Gauna A, Chukkapalli S, Velsko I, Kesavalu L, Cha S. Polymicrobial infection alter inflammatory microRNA in rat salivary glands during periodontal disease. Anaerobe 2015; 38:70-75. [PMID: 26481834 DOI: 10.1016/j.anaerobe.2015.10.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 10/08/2015] [Accepted: 10/10/2015] [Indexed: 12/11/2022]
Abstract
Periodontal disease initiated by subgingival pathogens is linked with diminished secretion of saliva, and implies pathogenic bacteria dissemination to or affects secondary sites such as the salivary glands. MicroRNAs activated in response to bacteria may modulate immune responses against pathogens. Therefore, Sprague-Dawley rats were infected by oral lavage consisting of polymicrobial inocula, namely Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola, or sham-infected for 12 weeks (n = 6). We quantified inflammatory miRNA expression levels of miRNA-132, miR-146a, and miR-155 at secondary sites to the primary infection of the gingiva, including submandibular salivary glands, lacrimal glands, and pancreas. The presence of bacteria was detected in situ at secondary sites. Infected rat gingiva showed increased relative expression of miR-155. In contrast, miRNA-155 expression was decreased in submandibular salivary glands, along with positive identification of P. gingivalis in 2/6 and T. denticola in 1/6 rat salivary glands. Furthermore, miRNA-132 and miRNA-146a were significantly decreased in the pancreas of infected rats. This study is the first to show primary periodontal infections can alter miRNA profiles in secondary sites such as the salivary gland and pancreas. Whether these alterations contribute to pathologies of salivary glands in Sjögren's syndrome or of pancreas in diabetes warrants further investigation.
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Affiliation(s)
- Gautam Nayar
- Department of Oral and Maxillofacial Diagnostic Sciences, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - Adrienne Gauna
- Department of Oral and Maxillofacial Diagnostic Sciences, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - Sasanka Chukkapalli
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - Irina Velsko
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - Lakshmyya Kesavalu
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA; Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA.
| | - Seunghee Cha
- Department of Oral and Maxillofacial Diagnostic Sciences, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
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Nielsen HK, Garcia J, Væth M, Schlafer S. Comparison of Riboflavin and Toluidine Blue O as Photosensitizers for Photoactivated Disinfection on Endodontic and Periodontal Pathogens In Vitro. PLoS One 2015; 10:e0140720. [PMID: 26469348 PMCID: PMC4607437 DOI: 10.1371/journal.pone.0140720] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 09/28/2015] [Indexed: 11/18/2022] Open
Abstract
Photoactivated disinfection has a strong local antimicrobial effect. In the field of dentistry it is an emerging adjunct to mechanical debridement during endodontic and periodontal treatment. In the present study, we investigate the effect of photoactivated disinfection using riboflavin as a photosensitizer and blue LED light for activation, and compare it to photoactivated disinfection with the widely used combination of toluidine blue O and red light. Riboflavin is highly biocompatible and can be activated with LED lamps at hand in the dental office. To date, no reports are available on the antimicrobial effect of photoactivated disinfection using riboflavin/blue light on oral microorganisms. Planktonic cultures of eight organisms frequently isolated from periodontal and/or endodontic lesions (Aggregatibacter actinomycetemcomitans, Candida albicans, Enterococcus faecalis, Escherischia coli, Lactobacillus paracasei, Porphyromonas gingivalis, Prevotella intermedia and Propionibacterium acnes) were subjected to photoactivated disinfection with riboflavin/blue light and toluidine blue O/red light, and survival rates were determined by CFU counts. Within the limited irradiation time of one minute, photoactivated disinfection with riboflavin/blue light only resulted in minor reductions in CFU counts, whereas full kills were achieved for all organisms when using toluidine blue O/red light. The black pigmented anaerobes P. gingivalis and P. intermedia were eradicated completely by riboflavin/blue light, but also by blue light treatment alone, suggesting that endogenous chromophores acted as photosensitizers in these bacteria. On the basis of our results, riboflavin cannot be recommended as a photosensitizer used for photoactivated disinfection of periodontal or endodontic infections.
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Affiliation(s)
| | - Javier Garcia
- Department of Dentistry, HEALTH, Aarhus University, Aarhus, 8000, Denmark
| | - Michael Væth
- Department of Biostatistics, HEALTH, Aarhus University, Aarhus, 8000, Denmark
| | - Sebastian Schlafer
- Department of Dentistry, HEALTH, Aarhus University, Aarhus, 8000, Denmark
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Sanz-Sánchez I, Ortiz-Vigón A, Herrera D, Sanz M. Microbiological effects and recolonization patterns after adjunctive subgingival debridement with Er:YAG laser. Clin Oral Investig 2015; 20:1253-61. [PMID: 26419675 DOI: 10.1007/s00784-015-1617-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 09/21/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The objective of this study was to assess the microbiological effects and recolonization patterns after non-surgical periodontal treatment protocol based on the adjunctive use of erbium-doped yttrium aluminium garnet (Er:YAG) laser. MATERIAL AND METHODS Patients diagnosed with chronic periodontitis were randomly assigned to two different treatment protocols: test, full-mouth subgingival ultrasonic instrumentation followed by Er-YAG laser application 1 week later to sites with initial probing pocket depth ≥4.5 mm; and control, full-mouth ultrasonic subgingival instrumentation within 1 week. Clinical (at sampled sites) and microbiological (culture-based) parameters were recorded at baseline and 3 and 12 months. Microbiological variables included total counts, frequency of detection, proportions and counts of target species. RESULTS Results from 19 test and 21 control patients were compared. Minor changes were observed for total colony-forming units, with no differences between groups. For the frequency of detection, a limited and similar impact in both groups was observed for the most prevalent (over 80 %) periodontal pathogens (Porphyromonas gingivalis, Prevotella intermedia, Fusobacterium nucleatum). For proportions, reductions in P. gingivalis occurred at 3 months, both in the test and control groups (from 16.3 to 10 % and 16 to 14.8 %, respectively), although these differences were not statistically significant. At 12 months, the test group showed a statistically significant greater reduction in probing depth for the sampled sites. CONCLUSIONS The adjunctive use of Er:YAG laser when compared with conventional ultrasonic debridement did not provide a microbiological added benefit. CLINICAL RELEVANCE Even though some clinical benefits with the adjunctive laser application were identified when comparing both treatment protocols, there were no differences in microbiological outcomes or in the bacterial recolonization patterns.
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Affiliation(s)
- Ignacio Sanz-Sánchez
- Postgraduate Clinic in Periodontology, Faculty of Odontology, Universidad Complutense de Madrid, Plaza Ramón y Cajal S/N., 28040, Madrid, Spain.
| | - Alberto Ortiz-Vigón
- Postgraduate Clinic in Periodontology, Faculty of Odontology, Universidad Complutense de Madrid, Plaza Ramón y Cajal S/N., 28040, Madrid, Spain
| | - David Herrera
- Postgraduate Clinic in Periodontology, Faculty of Odontology, Universidad Complutense de Madrid, Plaza Ramón y Cajal S/N., 28040, Madrid, Spain
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, University Complutense, Madrid, Spain
| | - Mariano Sanz
- Postgraduate Clinic in Periodontology, Faculty of Odontology, Universidad Complutense de Madrid, Plaza Ramón y Cajal S/N., 28040, Madrid, Spain
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, University Complutense, Madrid, Spain
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50
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Torrungruang K, Jitpakdeebordin S, Charatkulangkun O, Gleebbua Y. Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, and Treponema denticola / Prevotella intermedia Co-Infection Are Associated with Severe Periodontitis in a Thai Population. PLoS One 2015; 10:e0136646. [PMID: 26313005 PMCID: PMC4552424 DOI: 10.1371/journal.pone.0136646] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 08/06/2015] [Indexed: 12/21/2022] Open
Abstract
Periodontitis is a polymicrobial infection of tooth-supporting tissues. This cross-sectional study aimed to examine the associations between five target species and severe periodontitis in a Thai population. Using the CDC/AAP case definition, individuals diagnosed with no/mild and severe periodontitis were included. Quantitative analyses of Aggregatibacter actinomycetemcomitans (Aa), Porphyromonas gingivalis (Pg), Tannerella forsythia (Tf), Treponema denticola (Td), and Prevotella intermedia (Pi) in subgingival plaque were performed using real-time polymerase chain reaction. The association between target species and severe periodontitis was examined using logistic regression analysis. The study subjects comprised 479 individuals with no/mild periodontitis and 883 with severe periodontitis. Bacterial prevalence and quantity were higher in subjects with severe periodontitis than in those with no/mild disease. In the fully adjusted model, all species except Tf showed a dose-dependent relationship with periodontitis. The mere presence of Pg, even in low amount, was significantly associated with severe periodontitis, while the amount of Aa, Td, and Pi had to reach the critical thresholds to be significantly associated with disease. Compared to individuals with low levels of both Td and Pi, high colonization by either Td or Pi alone significantly increased the odds of having severe periodontitis by 2.5 (95%CI 1.7-3.5) folds. The odds ratio was further increased to 14.8 (95%CI 9.2-23.8) in individuals who were highly colonized by both species. Moreover, the presence of Pg and high colonization by Aa were independently associated with severe periodontitis with odds ratios of 5.6 (95%CI 3.4-9.1) and 2.2 (95%CI 1.5-3.3), respectively. Our findings suggest that the presence of Pg and high colonization by Aa, Td, and Pi play an important role in severe periodontitis in this study population. We also demonstrate for the first time that individuals co-infected with Td and Pi were more likely to have periodontitis than were those infected with a single pathogen.
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Affiliation(s)
- Kitti Torrungruang
- Department of Microbiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- * E-mail:
| | | | - Orawan Charatkulangkun
- Department of Periodontology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Yingampa Gleebbua
- Health Division, Medical and Health Department, Electricity Generating Authority of Thailand, Nonthaburi, Thailand
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