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Castillo Y, Delgadillo NA, Neuta Y, Iniesta M, Sanz M, Herrera D, Pianeta R, Lafaurie GI, Castillo DM. Design and validation of a quantitative polymerase chain reaction test for the identification and quantification of uncultivable bacteria associated with periodontitis. Arch Oral Biol 2023; 154:105758. [PMID: 37419062 DOI: 10.1016/j.archoralbio.2023.105758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/11/2023] [Accepted: 07/02/2023] [Indexed: 07/09/2023]
Abstract
OBJECTIVE This study aimed to standardize a quantitative polymerase chain reaction (qPCR)-based test to identify and quantify the uncultivable bacteria associated with periodontitis. METHODS The standardization of qPCR, the curves for the quantification of Eubacterium saphenum, Eubacterium brachy, Desulfobulbus oralis, and Filifactor alocis were developed by cloning the 16 S rRNA target gene fragment, using the GEMTEasy vector. The qPCRs were validated in 55 subgingival biofilm clinical samples, from different stages of periodontitis and from periodontally healthy/gingivitis individuals, which were previously evaluated by next-generation sequencing (NGS). The results obtained by the two methods were compared by the concordance of Cohen's Kappa index, and sensitivity, specificity, receiver operating characteristic (ROC) curve, and predictive values were established. RESULTS obtained by the two methods were compared using the concordance of Cohen's Kappa index, and sensitivity, specificity, predictive values, and ROC curves were generated. The qPCR test was standardized with efficiencies between 90% and 100% and R2: 0.997-0.999. Concordance between the qPCR and NSG was moderate to F. alocis (agreement 78.2%; kappa 0.56, p < 0.05) and fair to the other microorganisms (agreement 67.27%-72.73; kappa 0.37-0.38, p < 0.05). qPCR exhibited a high sensitivity (82.2-100%) and specificity (100%) for E. brachy, E. saphenum, and F. alocis. Sensitivity was lower to D. oralis. Conversely, qPCR demonstrated higher sensitivity to E. saphenum than NSG (100 vs. 68.1). CONCLUSIONS The uncultivable microorganisms associated with periodontitis, D. oralis, E. brachy, E. saphenum, and F. alocis can be detected and quantified with the newly developed and validates qPCR test.
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Affiliation(s)
- Yormaris Castillo
- Universidad El Bosque, Vicerrectoría de investigaciones, Facultad de Odontología, Unidad de Investigación Básica Oral-UIBO, Bogotá, Colombia
| | - Nathaly Andrea Delgadillo
- Universidad El Bosque, Vicerrectoría de investigaciones, Facultad de Odontología, Unidad de Investigación Básica Oral-UIBO, Bogotá, Colombia
| | - Yineth Neuta
- Universidad El Bosque, Vicerrectoría de investigaciones, Facultad de Odontología, Unidad de Investigación Básica Oral-UIBO, Bogotá, Colombia
| | - Margarita Iniesta
- Complutense University of Madrid, ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, School of Dentistry, Madrid, Spain
| | - Mariano Sanz
- Complutense University of Madrid, ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, School of Dentistry, Madrid, Spain
| | - David Herrera
- Complutense University of Madrid, ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, School of Dentistry, Madrid, Spain
| | - Roquelina Pianeta
- Complutense University of Madrid, ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, School of Dentistry, Madrid, Spain; Corporación Universitaria Rafael Núñez, School of Dentistry, Cartagena, Colombia
| | - Gloria Inés Lafaurie
- Universidad El Bosque, Vicerrectoría de investigaciones, Facultad de Odontología, Unidad de Investigación Básica Oral-UIBO, Bogotá, Colombia
| | - Diana Marcela Castillo
- Universidad El Bosque, Vicerrectoría de investigaciones, Facultad de Odontología, Unidad de Investigación Básica Oral-UIBO, Bogotá, Colombia.
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Ge D, Wang F, Hu Y, Wang B, Gao X, Chen Z. Fast, Simple, and Highly Specific Molecular Detection of Porphyromonas gingivalis Using Isothermal Amplification and Lateral Flow Strip Methods. Front Cell Infect Microbiol 2022; 12:895261. [PMID: 35694545 PMCID: PMC9174636 DOI: 10.3389/fcimb.2022.895261] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 04/27/2022] [Indexed: 12/16/2022] Open
Abstract
Porphyromonas gingivalis is an important oral pathogen that causes periodontal disease and is difficult to culture under conventional conditions. Therefore, a reliable technique for detecting this pathogenic bacterium is required. Here, isothermal recombinase polymerase amplification (RPA), a new nucleic acid amplification method, was combined with a visualization method based on nanoparticle-based lateral flow strips (LFS) for the rapid detection of P. gingivalis. The species-specific 16S rRNA sequence of P. gingivalis was used as the target for RPA, and a set of specific primer–probe combinations were designed and screened to amplify the target sequences. As a thermostatic amplification method, the RPA reaction, under optimized conditions, takes only 30 min to complete at a constant temperature (37°C). The amplification reaction products can be detected visually by LFS without any need for special equipment. The RPA-LFS method established for the detection of P. gingivalis was shown to be highly specific in distinguishing P. gingivalis from other pathogenic organisms by using 20 clinical isolates of P. gingivalis and 23 common pathogenic microorganisms. Susceptibility measurements and probit regression analysis were performed with gradient dilutions of P. gingivalis genomic DNA. The method was obtained to be highly sensitive, with a detection limit of 9.27 CFU per reaction at 95% probability. By analyzing the gingival sulcus fluid specimens from 130 patients with chronic periodontitis, the results showed that the RPA-LFS method detected 118 positive cases and 12 negative cases of P. gingivalis, and the results obtained were consistent with those of a conventional PCR assay. The RPA–LFS method is an efficient, rapid, and convenient diagnostic method that simplifies the tedious process of detecting P. gingivalis.
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Affiliation(s)
| | | | | | | | - Xuzhu Gao
- *Correspondence: Zhenxing Chen, ; Xuzhu Gao,
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3
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Hbibi A, Bouziane A, Lyoussi B, Zouhdi M, Benazza D. Aggregatibacter actinomycetemcomitans: From Basic to Advanced Research. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1373:45-67. [DOI: 10.1007/978-3-030-96881-6_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Martínez M, Martín-Hernández D, Virto L, MacDowell KS, Montero E, González-Bris Á, Marín MJ, Ambrosio N, Herrera D, Leza JC, Sanz M, García-Bueno B, Figuero E. Periodontal diseases and depression: A pre-clinical in vivo study. J Clin Periodontol 2021; 48:503-527. [PMID: 33432590 DOI: 10.1111/jcpe.13420] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 11/10/2020] [Accepted: 01/07/2021] [Indexed: 12/17/2022]
Abstract
AIM To analyse, through a pre-clinical in vivo model, the possible mechanisms linking depression and periodontitis at behavioural, microbiological and molecular levels. MATERIALS AND METHODS Periodontitis (P) was induced in Wistar:Han rats (oral gavages with Porphyromonas gingivalis and Fusobacterium nucleatum) during 12 weeks, followed by a 3-week period of Chronic Mild Stress (CMS) induction. Four groups (n = 12 rats/group) were obtained: periodontitis and CMS (P+CMS+); periodontitis without CMS; CMS without periodontitis; and control. Periodontal clinical variables, alveolar bone levels (ABL), depressive-like behaviour, microbial counts and expression of inflammatory mediators in plasma and brain frontal cortex (FC), were measured. ANOVA tests were applied. RESULTS The highest values for ABL occurred in the P+CMS+ group, which also presented the highest expression of pro-inflammatory mediators (TNF-α, IL-1β and NF-kB) in frontal cortex, related to the lipoprotein APOA1-mediated transport of bacterial lipopolysaccharide to the brain and the detection of F. nucleatum in the brain parenchyma. A dysregulation of the hypothalamic-pituitary-adrenal stress axis, reflected by the increase in plasma corticosterone and glucocorticoid receptor levels in FC, was also found in this group. CONCLUSIONS Neuroinflammation induced by F. nucleatum (through a leaky mouth) might act as the linking mechanism between periodontal diseases and depression.
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Affiliation(s)
- María Martínez
- Postgraduate program in Periodontology, Faculty of Dentistry, Complutense University, Madrid (UCM), Madrid, Spain
| | - David Martín-Hernández
- Department of Child and Adolescent Psychiatry, Hospital Gregorio Marañón Research Institute (IiSGM), Madrid, Spain.,Department of Pharmacology and Toxicology, Faculty of Medicine UCM, Hospital 12 de Octubre Research Institute (Imas12), Neurochemistry Research Institute UCM, IUIN, Madrid, Spain.,Biomedical Network Research Center of Mental Health (CIBERSAM), Institute of Health Carlos III, Madrid, Spain
| | - Leire Virto
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group (UCM), Madrid, Spain
| | - Karina S MacDowell
- Department of Pharmacology and Toxicology, Faculty of Medicine UCM, Hospital 12 de Octubre Research Institute (Imas12), Neurochemistry Research Institute UCM, IUIN, Madrid, Spain.,Biomedical Network Research Center of Mental Health (CIBERSAM), Institute of Health Carlos III, Madrid, Spain
| | - Eduardo Montero
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group (UCM), Madrid, Spain
| | - Álvaro González-Bris
- Department of Pharmacology and Toxicology, Faculty of Medicine UCM, Hospital 12 de Octubre Research Institute (Imas12), Neurochemistry Research Institute UCM, IUIN, Madrid, Spain.,Biomedical Network Research Center of Mental Health (CIBERSAM), Institute of Health Carlos III, Madrid, Spain
| | - María José Marín
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group (UCM), Madrid, Spain
| | - Nagore Ambrosio
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group (UCM), Madrid, Spain
| | - David Herrera
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group (UCM), Madrid, Spain
| | - Juan Carlos Leza
- Department of Pharmacology and Toxicology, Faculty of Medicine UCM, Hospital 12 de Octubre Research Institute (Imas12), Neurochemistry Research Institute UCM, IUIN, Madrid, Spain.,Biomedical Network Research Center of Mental Health (CIBERSAM), Institute of Health Carlos III, Madrid, Spain
| | - Mariano Sanz
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group (UCM), Madrid, Spain
| | - Borja García-Bueno
- Department of Pharmacology and Toxicology, Faculty of Medicine UCM, Hospital 12 de Octubre Research Institute (Imas12), Neurochemistry Research Institute UCM, IUIN, Madrid, Spain.,Biomedical Network Research Center of Mental Health (CIBERSAM), Institute of Health Carlos III, Madrid, Spain
| | - Elena Figuero
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group (UCM), Madrid, Spain
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Jensen AB, Isidor F, Lund M, Væth M, Johansson A, Lauritsen NN, Haubek D. Prevalence of Aggregatibacter actinomycetemcomitans and Periodontal Findings among 14 to 15-Year Old Danish Adolescents: A Descriptive Cross-Sectional Study. Pathogens 2020; 9:pathogens9121054. [PMID: 33339288 PMCID: PMC7765784 DOI: 10.3390/pathogens9121054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/08/2020] [Accepted: 12/11/2020] [Indexed: 12/15/2022] Open
Abstract
Aggregatibacter actinomycetemcomitans (Aa) is a keystone pathogen associated with periodontitis in adolescents. The knowledge on the prevalence of Aa and periodontitis among adolescents in Northern Europe is sparse. A total of 525 14- to 15-year-old adolescents from the municipality of Aarhus, Denmark, underwent a full-mouth clinical examination. Plaque score (PS), bleeding on probing (BOP), probing pocket depth (PPD), and clinical attachment loss (CAL) were recorded. Subgingival plaque samples (SPS) and stimulated saliva samples (SSS) were collected and analyzed for the presence of JP2 and non-JP2 genotypes of Aa using real-time PCR. A total of 70 (13.3%) individuals were positive for Aa, with 17 found in SPS, 19 in SSS, and 35 in both. The highly leukotoxic JP2 genotype of Aa was not detected. The individuals positive for Aa in both SPS and SSS had poorer periodontal outcomes (PPD and CAL) than individuals without Aa and individuals carrying Aa in either SPS or SSS only. In conclusion, 13% of 14- to 15-year-old Danish adolescents were positive for Aa, and the presence of Aa in both SPS and SSS was associated with poorer periodontal outcomes.
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Affiliation(s)
- Anne Birkeholm Jensen
- Section for Pediatric Dentistry, Department of Dentistry and Oral Health, Health, Aarhus University, 8000 Aarhus, Denmark;
- The Municipality of Aarhus, 8000 Aarhus, Denmark
| | - Flemming Isidor
- Section for Prosthetic Dentistry, Department of Dentistry and Oral Health, Health, Aarhus University, 8000 Aarhus, Denmark
| | - Marianne Lund
- Department of Clinical Microbiology, Aarhus University Hospital, Skejby, 8210 Aarhus, Denmark;
| | - Michael Væth
- Department of Public Health, Aarhus University, 8000 Aarhus, Denmark;
| | - Anders Johansson
- Divison of Molecular Periodontology, Department of Odontology, Faculty of Medicine and Odontology, Umea University, 901 87 Umea, Sweden;
| | | | - Dorte Haubek
- Section for Pediatric Dentistry, Department of Dentistry and Oral Health, Health, Aarhus University, 8000 Aarhus, Denmark;
- Correspondence: ; Tel.: +45-21-685-848
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Bracamonte-Wolf C, Orrego PR, Muñoz C, Herrera D, Bravo J, Gonzalez J, Varela H, Catalán A, Araya JE. Observational cross-sectional study of Trichomonas tenax in patients with periodontal disease attending a Chilean university dental clinic. BMC Oral Health 2019; 19:207. [PMID: 31484557 PMCID: PMC6727549 DOI: 10.1186/s12903-019-0885-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 08/13/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The oral flagellated protozoan Trichomonas tenax has been associated with patients with periodontal disease. However, no recent studies have been conducted on the prevalence of T. tenax in Chile. The aim of this study was to determine the presence of T. tenax in patients with periodontal disease, admitted to the Dental Clinic of the University of Antofagasta, Chile, through Polymerase Chain Reaction (PCR) amplification of the beta-tubulin gene. METHODS An observational, cross-sectional study was conducted on 50 patients diagnosed with periodontal disease, 20 of them with gingivitis and 30 with periodontitis. T. tenax was identified by PCR amplification of the beta-tubulin gene. Associations between the protozoan and periodontal disease or the presence of risk factors to establish T. tenax infection were determined using the chi-square test and binary logistic regression analysis. RESULTS T. tenax was present in 28 out of 50 (56%) of patients with periodontal disease, and was more prevalent when associated with periodontitis (21 out of 30; 70%) than dental plaque-induced gingivitis (7 out of 20; 35%). Non-statistically-significant associations were observed between the presence of T. tenax and age, gender, smoking habit or diabetes. Statistically significant associations were observed between the presence of T. tenax and periodontal disease, and between T. tenax and the Periodontal Screening and Recording (PSR) index. CONCLUSION T. tenax showed a high presence in patients with progressive states of periodontal diseases. Consequently, T. tenax detection is strongly recommended in patients with periodontal disease diagnosis and with a PSR index greater than 3.
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Affiliation(s)
- Casandra Bracamonte-Wolf
- Laboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile
| | - Patricio R Orrego
- Biomedical Departmen, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile
| | - Christian Muñoz
- Laboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile
| | - Daniel Herrera
- Laboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile
| | - Joel Bravo
- Department of Dentistry, Faculty of Medicine and Dentistry, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile
| | - Jorge Gonzalez
- Laboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile
| | - Héctor Varela
- Department of Mathematics, Faculty of Basic Sciences, Universidad de Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile
| | - Alejandro Catalán
- Laboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile
| | - Jorge E Araya
- Laboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile.
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Marín MJ, Ambrosio N, O’Connor A, Herrera D, Sanz M, Figuero E. Validation of a multiplex qPCR assay for detection and quantification of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis and Tannerella forsythia in subgingival plaque samples. A comparison with anaerobic culture. Arch Oral Biol 2019; 102:199-204. [DOI: 10.1016/j.archoralbio.2019.04.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/27/2019] [Accepted: 04/24/2019] [Indexed: 10/26/2022]
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8
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Selection of Optimized Reference Genes for qRT-PCR Normalization in Xanthomonas campestris pv. campestris Cultured in Different Media. Curr Microbiol 2019; 76:613-619. [PMID: 30863882 DOI: 10.1007/s00284-019-01667-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 03/02/2019] [Indexed: 12/13/2022]
Abstract
Black rot is a cruciferous disease caused by Xanthomonas campestris pv. campestris (Xcc) and results in significant economic losses worldwide; therefore, elucidation of the mechanism of Xcc pathogenesis is urgently required. In this study, we aimed to select optimized reference genes to verify the relative quantification of virulent genes in Xcc. Xcc strains were cultured in three different media [basic medium (MMX), hrp-inducing medium (MMXC) and rich medium (NYG)] and the expression stability of five candidate genes [thymidylate synthase (thyA), DNA gyrase subunit B (gyrB), DNA-directed RNA polymerase subunit beta, glyceraldehyde-3-phosphate dehydrogenase and 16S ribosomal RNA (16S rRNA)] was evaluated using BestKeeper, GeNorm, and NormFinder software programs. Quantitative real-time PCR (qRT-PCR) analysis confirmed that two Xcc effector genes were hrpX/hrpG-regulated in MMXC using selected genes as controls. Finally, gyrB and thyA were validated as the optimized reference genes of Xcc cultured in MMXC, and qRT-PCR analysis was demonstrated to be an efficient alternative to Gus-activity detection for the analysis of Xcc expression. This information will be useful in the future studies of Xcc, especially those seeking new functional genes.
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9
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Bermejo P, Sánchez MC, Llama‐Palacios A, Figuero E, Herrera D, Sanz M. Topographic characterization of multispecies biofilms growing on dental implant surfaces: An in vitro model. Clin Oral Implants Res 2019; 30:229-241. [DOI: 10.1111/clr.13409] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 01/17/2019] [Accepted: 01/17/2019] [Indexed: 12/24/2022]
Affiliation(s)
- Patricia Bermejo
- Laboratory of Oral Microbiology, Faculty of Odontology University Complutense Madrid Spain
| | - María Carmen Sánchez
- Laboratory of Oral Microbiology, Faculty of Odontology University Complutense Madrid Spain
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group University Complutense Madrid Spain
| | - Arancha Llama‐Palacios
- Laboratory of Oral Microbiology, Faculty of Odontology University Complutense Madrid Spain
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group University Complutense Madrid Spain
| | - Elena Figuero
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group University Complutense Madrid Spain
| | - David Herrera
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group University Complutense Madrid Spain
| | - Mariano Sanz
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group University Complutense Madrid Spain
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Mitova N, Rashkova M, Popova C. Quantity, diversity and complexity of subgingival microorganisms in children with plaque-induced gingivitis. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1604156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Nadezhda Mitova
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Maya Rashkova
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Christina Popova
- Department of Periodontology, Faculty of Dental Medicine, Medical University of Sofia, Sofia, Bulgaria
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11
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Binshabaib M, ALHarthi SS, Salehpoor D, Michelogiannakis D, Javed F. Contribution of herpesviruses in the progression of periodontal and peri-implant diseases in systemically healthy individuals. Rev Med Virol 2018; 28:e1996. [DOI: 10.1002/rmv.1996] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/18/2018] [Accepted: 06/21/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Munerah Binshabaib
- Department of Periodontology, College of Dentistry; Princess Nourah Bint Abdulrahman University; Riyadh Saudi Arabia
| | - Shatha Subhi ALHarthi
- Department of Periodontology, College of Dentistry; Princess Nourah Bint Abdulrahman University; Riyadh Saudi Arabia
| | - Danial Salehpoor
- Department of General Dentistry, Eastman Institute for Oral Health; University of Rochester; Rochester New York USA
| | - Dimitrios Michelogiannakis
- Departments of Community Dentistry and Oral Disease Prevention and Orthodontics and Dentofacial Orthopedics, Eastman Institute for Oral Health; University of Rochester; Rochester New York USA
| | - Fawad Javed
- Department of General Dentistry, Eastman Institute for Oral Health; University of Rochester; Rochester New York USA
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12
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Arenas Rodrigues VA, de Avila ED, Nakano V, Avila-Campos MJ. Qualitative, quantitative and genotypic evaluation of Aggregatibacter actinomycetemcomitans and Fusobacterium nucleatum isolated from individuals with different periodontal clinical conditions. Anaerobe 2018; 52:50-58. [PMID: 29857043 DOI: 10.1016/j.anaerobe.2018.05.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Revised: 04/26/2018] [Accepted: 05/28/2018] [Indexed: 02/06/2023]
Abstract
Aggregatibacter actinomycetemcomitans and Fusobacterium nucleatum are strongly associated with periodontitis, and their evaluations are relevant to understand their role in the etiology and progression of periodontal diseases. In this study, the qualitative and quantitative detection of A. actinomycetemcomitans and F. nucleatum, as well as their genetic diversity, were evaluated in individuals with gingivitis, chronic periodontitis and periodontally healthy. In addition, the biotyping, serotyping, and prevalence of the ltx and cdt genes in A. actinomycetemcomitans were also determined. Subgingival biofilms obtained from gingivitis (70), periodontitis (75) and healthy (95) individuals were analyzed by cultures and PCR. Bacterial typing and presence of ltx and cdt genes in A. actinomycetemcomitans were also verified. DNA from A. actinomycetemcomitans and F. nucleatum was detected respectively, in 65.7% and 57.1% of gingivitis, 80% and 68% of periodontitis, and 57.8% and 37.8% of healthy. A. actinomycetemcomitans from gingivitis were biotypes I, II, IV, V, and X, and serotypes a, c, and e. In periodontitis, biotypes II, VI, and X, and serotypes a, b, and c were found. In healthy subjects, biotypes II and X, and serotypes b and c were found. The LTX and ltxA were observed in strains from gingivitis and periodontitis pockets. Subsequently, our data also showed no direct relationship between ltxA gene expression and leukotoxin gene 530-bp presence. On the other hand, cdt gene predominated during the inflammatory disease process. Our results strongly support a role of A. actinomycetemcomitans and F. nucleatum in advanced stage of periodontal disease.
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Affiliation(s)
- Viviane Aparecida Arenas Rodrigues
- Anaerobe Laboratory, Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo - USP, Av. Prof. Lineu Prestes, 1374, Sao Paulo, SP, Brazil
| | - Erica Dorigatti de Avila
- Postdoctoral Research Fellow, Department of Dental Materials and Prosthodontics, School of Dentistry of Araraquara, Sao Paulo State University - UNESP, Rua Humaita, 1680, Araraquara, SP, Brazil; Department of Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25, Nijmegen, the Netherlands
| | - Viviane Nakano
- Anaerobe Laboratory, Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo - USP, Av. Prof. Lineu Prestes, 1374, Sao Paulo, SP, Brazil
| | - Mario Julio Avila-Campos
- Anaerobe Laboratory, Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo - USP, Av. Prof. Lineu Prestes, 1374, Sao Paulo, SP, Brazil.
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