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Mizgalska D, Malicki S, Golda A, Chruścicka‐Smaga B, Potempa J. Screening and characterization of aptamers recognizing the periodontal pathogen Tannerella forsythia. FEBS Open Bio 2024; 14:498-504. [PMID: 38308430 PMCID: PMC10909966 DOI: 10.1002/2211-5463.13772] [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: 07/19/2023] [Revised: 12/22/2023] [Accepted: 01/21/2024] [Indexed: 02/04/2024] Open
Abstract
Periodontal disease is one of the most common forms of inflammation. It is currently diagnosed by observing symptoms such as gingival bleeding and attachment loss. However, the detection of biomarkers that precede such symptoms would allow earlier diagnosis and prevention. Aptamers are short oligonucleotides or peptides that fold into three-dimensional conformations conferring the ability to bind molecular targets with high affinity and specificity. Here we report the selection of aptamers that bind specifically to the bacterium Tannerella forsythia, a pathogen frequently associated with periodontal disease. Two aptamers with the highest affinity were examined in more detail, revealing that their binding is probably dependent on mirolysin, a surface-associated protease secreted by the T. forsythia type-9 secretion system. The aptamers showed minimal cross-reactivity to other periodontopathogens and are therefore promising leads for the development of new tools to study the composition of the periodontitis-associated dysbiotic bacteriome as well as inexpensive new diagnostic assays.
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Affiliation(s)
- Danuta Mizgalska
- Department of Microbiology, Faculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakówPoland
| | - Stanisław Malicki
- Department of Microbiology, Faculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakówPoland
- Laboratory of Proteolysis and Post‐translational Modification of Proteins, Malopolska Centre of BiotechnologyJagiellonian UniversityKrakówPoland
| | - Anna Golda
- Department of Microbiology, Faculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakówPoland
| | - Barbara Chruścicka‐Smaga
- Department of Microbiology, Faculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakówPoland
| | - Jan Potempa
- Department of Microbiology, Faculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakówPoland
- Department of Oral Immunology and Infectious DiseasesUniversity of Louisville School of DentistryKYUSA
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Starkhammar Johansson C, Dimitrijevic Carlsson A, Wahlund K, Alstergren P. Periodontal Health in Children with Juvenile idiopathic arthritis. Eur J Paediatr Dent 2024; 25:1. [PMID: 38353519 DOI: 10.23804/ejpd.2024.1913] [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] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
AIM To investigate gingival inflammation and prevalence of four specific periodontal associated pathogens in Juvenile idiopathic arthritis (JIA) in relation to orofacial pain, jaw function and systemic inflammatory activity in JIA. METHODS Forty-five children with JIA and 16 healthy children as controls, were enrolled. Subjects were examined and classified according to the diagnostic criteria for temporomandibular disorders (DC/TMD). Pain, pain-related disability and jaw function were also assessed. A clinical periodontal examination was performed. Subgingival plaque samples were collected and analyzed for semiquantitative levels of the following periodontal pathogens; Aggregatibacter actinomycetemcomintans, Porphyromonas gingivalis, Tannerella forsythia and Treponema denticola. CONCLUSION This study suggests that the periodontal disease-associated bacteria P. gingivalis and T. forsythia do not contribute to neither periodontal disease, systemic inflammatory activity nor orofacial pain and jaw dysfunction, including TMJ arthritis, in JIA patients in Sweden.
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Affiliation(s)
- C Starkhammar Johansson
- Center for Oral Rehabilitation, Linköping, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - A Dimitrijevic Carlsson
- Center for Oral Rehabilitation, Linköping, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden - Orofacial Pain and Jaw Function, Faculty of Odontology, Malmö University, Malmö, Sweden - Scandinavian Center for Orofacial Neurosciences (SCON),Malmö, Sweden
| | - K Wahlund
- Department of Orofacial Pain and Jaw Function, Kalmar County Hospital, Kalmar, Sweden
| | - P Alstergren
- Orofacial Pain and Jaw Function, Faculty of Odontology, Malmö University, Malmö, Sweden - Scandinavian Center for Orofacial Neurosciences (SCON),Malmö, Sweden - Skåne University Hospital, Specialized Pain Rehabilitation, Lund, Sweden
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Hyland SN, Chinthamani S, Ratna S, Wodzanowski KA, Sandles LMD, Honma K, Leimkuhler-Grimes C, Sharma A. Bioorthogonal Labeling and Click-Chemistry-Based Visualization of the Tannerella forsythia Cell Wall. Methods Mol Biol 2024; 2727:1-16. [PMID: 37815704 DOI: 10.1007/978-1-0716-3491-2_1] [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] [Indexed: 10/11/2023]
Abstract
The objective of this chapter is to provide a detailed protocol for the peptidoglycan (cell wall) labeling of the periodontal pathogen Tannerella forsythia and the development of a laboratory-safe Escherichia coli strain utilizing the N-acetylmuramic acid recycling enzymes AmgK, N-acetylmuramate/N-acetylglucosamine kinase, and MurU, N-acetylmuramate alpha-1-phosphate uridylyltransferase, from T. forsythia. The procedure involves bioorthogonal labeling of bacterial cells with an azido-modified analog of the amino sugar, N-acetylmuramic acid, through "click chemistry" with a fluorescent dye. The protocol is suitable for the generation of fluorescently labeled peptidoglycan molecules for applications in the study of bacterial and peptidoglycan trafficking in the host cells and cell wall recycling in complex microbiomes.
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Affiliation(s)
- Stephen N Hyland
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, USA
| | - Sreedevi Chinthamani
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, State University of New York, Buffalo, NY, USA
| | - Sushanta Ratna
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, USA
| | | | | | - Kiyonobu Honma
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, State University of New York, Buffalo, NY, USA
| | - Catherine Leimkuhler-Grimes
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, USA.
- Department of Biological Sciences, University of Delaware, Newark, DE, USA.
| | - Ashu Sharma
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, State University of New York, Buffalo, NY, USA.
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Lim Y, Kim HY, Han D, Choi B. Proteome and immune responses of extracellular vesicles derived from macrophages infected with the periodontal pathogen Tannerella forsythia. J Extracell Vesicles 2023; 12:e12381. [PMID: 38014595 PMCID: PMC10682907 DOI: 10.1002/jev2.12381] [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: 04/14/2023] [Accepted: 11/06/2023] [Indexed: 11/29/2023] Open
Abstract
Periodontitis is a chronic inflammatory disease caused by periodontal pathogens in subgingival plaque and is associated with systemic inflammatory diseases. Extracellular vesicles (EVs) released from host cells and pathogens carry a variety of biological molecules and are of interest for their role in disease progression and as diagnostic markers. In the present study, we analysed the proteome and inflammatory response of EVs derived from macrophages infected with Tannerella forsythia, a periodontal pathogen. The EVs isolated from the cell conditioned medium of T. forsythia-infected macrophages were divided into two distinct vesicles, macrophage-derived EVs and T. forsythia-derived OMVs, by size exclusion chromatography combined with density gradient ultracentrifugation. Proteome analysis showed that in T. forsythia infection, macrophage-derived EVs were enriched with pro-inflammatory cytokines and inflammatory mediators associated with periodontitis progression. T. forsythia-derived OMVs harboured several known virulence factors, including BspA, sialidase, GroEL and various bacterial lipoproteins. T. forsythia-derived OMVs induced pro-inflammatory responses via TLR2 activation. In addition, we demonstrated that T. forsythia actively released OMVs when T. forsythia encountered macrophage-derived soluble molecules. Taken together, our results provide insight into the characterisation of EVs derived from cells infected with a periodontal pathogen.
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Affiliation(s)
- Younggap Lim
- Department of Oral Microbiology and Immunology, School of DentistrySeoul National UniversitySeoulRepublic of Korea
| | - Hyun Young Kim
- Department of Oral Microbiology and Immunology, School of DentistrySeoul National UniversitySeoulRepublic of Korea
- Dental Research Institute, School of DentistrySeoul National UniversitySeoulRepublic of Korea
| | - Dohyun Han
- Transdisciplinary Department of Medicine & Advanced TechnologySeoul National University HospitalSeoulRepublic of Korea
- Proteomics Core Facility, Biomedical Research InstituteSeoul National University HospitalSeoulRepublic of Korea
- Department of MedicineSeoul National University College of MedicineSeoulRepublic of Korea
| | - Bong‐Kyu Choi
- Department of Oral Microbiology and Immunology, School of DentistrySeoul National UniversitySeoulRepublic of Korea
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5
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Marin MJ, Figuero E, Herrera D, Sanz M. Quantitative Analysis of Periodontal Pathogens Using Real-Time Polymerase Chain Reaction (PCR). Methods Mol Biol 2023; 2588:157-169. [PMID: 36418687 DOI: 10.1007/978-1-0716-2780-8_10] [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] [Indexed: 11/25/2022]
Abstract
The quantitative polymerase chain reaction (qPCR) is a variant of PCR aimed to detect and quantify a targeted DNA molecule. This is made through the addition of probes labeled with fluorescent molecules that emit fluorescence within each amplification cycle, resulting in fluorescence values proportional to the amount of accumulated PCR product. This chapter presents the detailed procedures for quantification of different periodontal pathogens (Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, Tannerella forsythia, Campylobacter rectus, Streptococcus oralis, and Fusobacterium spp.) using qPCR. It also includes the description of the most frequent problems encountered, how to solve them, and recommendations to minimize the risks for laboratory staff handling oral samples. In addition, a detailed protocol for multiplex qPCR to detect and quantify Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, and Tannerella forsythia is also included.
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Affiliation(s)
- Mª José Marin
- Oral Research Laboratory, Faculty of Dentistry, University Complutense, Madrid, Spain
- Etiology and Therapy of Periodontal and Peri-implant Diseases (ETEP) Research Group, University Complutense, Madrid, Spain
| | - Elena Figuero
- Oral Research Laboratory, Faculty of Dentistry, University Complutense, Madrid, Spain
- Etiology and Therapy of Periodontal and Peri-implant Diseases (ETEP) Research Group, University Complutense, Madrid, Spain
| | - David Herrera
- Etiology and Therapy of Periodontal and Peri-implant Diseases (ETEP) Research Group, University Complutense, Madrid, Spain
| | - Mariano Sanz
- Etiology and Therapy of Periodontal and Peri-implant Diseases (ETEP) Research Group, University Complutense, Madrid, Spain.
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Honma K, Sasaki H, Hamada N, Sharma A. An Extracytoplasmic Function Sigma/Anti-Sigma Factor System Regulates β-Glucanase Expression in Tannerella forsythia in Response to Fusobacterium nucleatum Sensing. J Bacteriol 2022; 204:e0031322. [PMID: 36448787 PMCID: PMC9765289 DOI: 10.1128/jb.00313-22] [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: 08/17/2022] [Accepted: 10/26/2022] [Indexed: 12/02/2022] Open
Abstract
The periodontal pathogen Tannerella forsythia expresses a β-glucanase (TfGlcA) whose expression is induced in response to Fusobacterium nucleatum, a bridge bacterium of the oral cavity. TfGlcA cleaves β-glucans to release glucose, which can serve as a carbon source for F. nucleatum and other cohabiting organisms. A two-gene cluster encoding a putative extracytoplasmic function (ECF) sigma factor and a FecR-like anti-sigma factor has been recognized upstream of a TfGlcA operon. We characterized and analyzed the role of these putative ECF sigma and anti-sigma factors in the regulation of TfGlcA expression. For this purpose, deletion mutants were constructed and analyzed for β-glucanase expression. In addition, an Escherichia coli-produced ECF sigma factor recombinant protein was evaluated for transcriptional and DNA binding activities. The results showed that the recombinant protein promoted transcription by the RNA polymerase core enzyme from the glcA promoter. Furthermore, in comparison to those in the parental strain, the β-glucanase expression levels were significantly reduced in the ECF sigma-factor deletion mutant and increased significantly in the FecR anti-sigma factor deletion mutant. The levels did not change in the mutants following coincubation with the F. nucleatum whole cells or cell extracts. Finally, the levels of β-glucanase produced by T. forsythia strains paralleled F. nucleatum biomass in cobiofilms. In conclusion, we identified a β-glucanase operon regulatory system in T. forsythia comprising an ECF sigma factor (TfSigG) and a cognate FecR-like anti-sigma factor responsive to F. nucleatum and potentially other stimuli. IMPORTANCE Previous studies have shown that F. nucleatum forms robust biofilms with T. forsythia utilizing glucose from the hydrolysis of β-glucans by T. forsythia β-glucanase, induced by F. nucleatum. In this study, we showed that a regulatory system comprising of an ECF sigma factor, TfSigG, and a FecR-like anti-sigma factor, TfFecR, is responsible for the β-glucanase induction in response to F. nucleatum, suggesting that this system plays roles in the mutualistic interactions of T. forsythia and F. nucleatum. The findings suggest the development and potential utility of small-molecule inhibitors targeting the β-glucanase activity or the TfSigG/TfFecR system as therapeutic drugs against dental plaque formation and periodontitis.
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Affiliation(s)
- Kiyonobu Honma
- Department of Oral Biology, University at Buffalo, State University of New York, Buffalo, New York, USA
| | - Haruka Sasaki
- Department of Oral Biology, University at Buffalo, State University of New York, Buffalo, New York, USA
- Division of Microbiology, Department of Oral Science, Kanagawa Dental University, Yokosuka, Kanagawa, Japan
| | - Nobushiro Hamada
- Division of Microbiology, Department of Oral Science, Kanagawa Dental University, Yokosuka, Kanagawa, Japan
| | - Ashu Sharma
- Department of Oral Biology, University at Buffalo, State University of New York, Buffalo, New York, USA
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Lund Håheim L, Thelle DS, Rønningen KS, Olsen I, Schwarze PE. Low level of antibodies to the oral bacterium Tannerella forsythia predicts bladder cancers and Treponema denticola predicts colon and bladder cancers: A prospective cohort study. PLoS One 2022; 17:e0272148. [PMID: 35994451 PMCID: PMC9394794 DOI: 10.1371/journal.pone.0272148] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/13/2022] [Indexed: 11/18/2022] Open
Abstract
This study explores the risk for cancer by level of antibodies to the anaerobe oral bacteria of periodontitis Tannerella forsythia (TF), Porphyromonas gingivalis (PG), and Treponema denticola (TD) all three collectively termed the red complex, and the facultative anaerobe bacterium Aggregatibacter actinomycetemcomitans (AA). The prospective cohort, the Oslo II-study from 2000, the second screening of the Oslo study of 1972/73, has been followed for 17 ½ years with regard to cancer incidence and mortality. A random sample of 697 elderly men comprised the study cohort. The antibody results measured by enzyme linked immunosorbent assay (ELISA) were used in the Cox proportional hazards analyses, and quartile risk on cancer incidence in a 17 ½ years follow-up. Among the 621 participants with no prior cancer diagnoses, 221 men developed cancer. The incidence trend was inverse, and the results are shown as 1st quartile of highest value and 4th as lowest of antibody levels. The results of the Cox proportional regression analyses showed that TF inversely predicts bladder cancer (n = 22) by Hazard Ratio (HR) = 1.71 (95% CI: 1.12, 2.61). TD inversely predicts colon cancer (n = 26) by HR = 1.52 (95% CI: 1.06, 2.19) and bladder cancer (n = 22) by HR = 1.60 (95% CI: 1.05, 2.43). Antibodies to two oral bacteria, TF and TD, showed an inverse risk relationship with incidence of specific cancers: TF bladder cancer, TD bladder and colon cancer. Lowered immunological response to the oral infection, periodontitis, is shown to be a risk factor in terms of cancer aetiology.
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Affiliation(s)
- Lise Lund Håheim
- Department of Oral Biology, University of Oslo, Oslo, Norway
- * E-mail:
| | - Dag S. Thelle
- Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Community Medicine and Public Health, University of Gothenburg, Gothenburg, Sweden
| | | | - Ingar Olsen
- Department of Oral Biology, University of Oslo, Oslo, Norway
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Koga A, Ariyoshi W, Kobayashi K, Izumi M, Isobe A, Akifusa S, Nishihara T. The Association between Tannerella forsythia and the Onset of Fever in Older Nursing Home Residents: A Prospective Cohort Study. Int J Environ Res Public Health 2022; 19:ijerph19084734. [PMID: 35457601 PMCID: PMC9025807 DOI: 10.3390/ijerph19084734] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/01/2022] [Accepted: 04/12/2022] [Indexed: 11/16/2022]
Abstract
Background: Periodontal pathogens are related to the incidence of systemic diseases. This study aimed to examine whether periodontal pathogen burden is associated with the risk of fever onset in older adults. Methods: Older adults in nursing homes, aged ≥65 years, were enrolled. The study was set in Kitakyushu, Japan. The body temperatures of participants were ≥37.2 °C and were recorded for eight months. As periodontal pathogens, Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia were qualified by a real-time polymerase chain reaction at the baseline. For statistical analysis, the number of bacterial counts was logarithmically conversed to 10 as a base. Results: Data from 56 participants with a median age of 88 (62−98) years were available for analysis. The logarithmic-conversed bacterial counts of T. forsythia, but not P. gingivalis or T. denticola, were associated with the onset of fever in older residents. The Kaplan−Meier method revealed that the group with <104 of T. forsythia had significantly less cumulative fever incidence than the group with ≥104 of T. forsythia. The group with ≥104 of T. forsythia was associated with an increased risk of fever onset (hazard ratio, 3.7; 98% confidence interval, 1.3−10.2; p = 0.012), which was adjusted for possible confounders. Conclusions: Bacterial burden of T. forsythia in the oral cavity was associated with the risk of the onset of fever in older nursing homes residents.
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Affiliation(s)
- Ayaka Koga
- Division of Infections and Molecular Biology, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan; (A.K.); (W.A.); (K.K.); (T.N.)
- School of Oral Health Sciences, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan; (M.I.); (A.I.)
| | - Wataru Ariyoshi
- Division of Infections and Molecular Biology, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan; (A.K.); (W.A.); (K.K.); (T.N.)
| | - Kaoru Kobayashi
- Division of Infections and Molecular Biology, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan; (A.K.); (W.A.); (K.K.); (T.N.)
- School of Oral Health Sciences, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan; (M.I.); (A.I.)
- ADTEC Co., Oita 879-0453, Japan
| | - Maya Izumi
- School of Oral Health Sciences, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan; (M.I.); (A.I.)
| | - Ayaka Isobe
- School of Oral Health Sciences, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan; (M.I.); (A.I.)
| | - Sumio Akifusa
- School of Oral Health Sciences, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan; (M.I.); (A.I.)
- Correspondence: ; Tel.: +81-93-285-3107
| | - Tatsuji Nishihara
- Division of Infections and Molecular Biology, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan; (A.K.); (W.A.); (K.K.); (T.N.)
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Li Z, Liu J, Wang P, Tao C, Zheng L, Sekine S, Zhuang S, Zhang D, Yamaguchi Y. Multiplex amplification of target genes of periodontal pathogens in continuous flow PCR microfluidic chip. Lab Chip 2021; 21:3159-3164. [PMID: 34190300 DOI: 10.1039/d1lc00457c] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Porphyromonas gingivalis (P.g), Treponema denticola (T.d), and Tannerella forsythia (T.f) are believed to be the major periodontal pathogens that cause gingivitis, which affects 50-90% of adults worldwide. Microfluidic chips based on continuous flow PCR (CF-PCR) are an ideal alternative to a traditional thermal cycler, because it can effectively reduce the time needed for temperature transformation. Herein, we explored multi-PCR of P.g, T.d and T.f using a CF-PCR microfluidic chip for the first time. Through a series of experiments, we obtained two optimal combinations of primers that are suitable for performing multi-PCR on these three periodontal pathogens, with amplicon sizes of (197 bp, 316 bp, 226 bp) and (197 bp, 316 bp, 641 bp), respectively. The results also demonstrated that by using multi-PCR, the amplification time can be reduced to as short as 3'48'' for the short-sized amplicons, while for T.f (641 bp), the minimum time required was 8'25''. This work provides an effective way to simultaneously amplify the target genes of P.g, T.d and T.f within a short time, and may promote CF-PCR as a practical tool for point-of-care testing of gingivitis.
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Affiliation(s)
- Zhenqing Li
- Engineering Research Centre of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai, China.
| | - Jiahui Liu
- Engineering Research Centre of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai, China.
| | - Ping Wang
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China
| | - Chunxian Tao
- Engineering Research Centre of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai, China.
| | - Lulu Zheng
- Engineering Research Centre of Optical Instrument and System, 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
| | - Songlin Zhuang
- Engineering Research Centre of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai, China.
| | - Dawei Zhang
- Engineering Research Centre of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai, China.
| | - Yoshinori Yamaguchi
- Oono Joint Research laboratory, Graduate school of Engineering, Osaka University, Osaka 565-0871, Japan.
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Ardila CM, Hernández-Casas C, Bedoya-García JA. Effects on clinical outcomes of adjunctive moxifloxacin versus amoxicillin plus metronidazole in periodontitis patients harboring Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, and Tannerella forsythia: exploratory analyses from a clinical trial. Quintessence Int 2020; 52:20-29. [PMID: 32696031 DOI: 10.3290/j.qi.a44927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
<p>Objective: Considering the etiopathogenesis of periodontitis, it is relevant to evaluate the efficacy of the adjunctive use of systemic antimicrobials based on microbial occurrence. This report explores whether patients harboring Aggregatibacter actinomycetemcomitans (Aa), Porphyromonas gingivalis (Pg), or Tannerella forsythia (Tf) at baseline could receive greater clinical benefits from adjunctive moxifloxacin (MXF) and amoxicillin plus metronidazole (AM+MT) in comparison to patients without the presence of these microorganisms before therapy for generalized periodontitis. A control group was established that received subgingival debridement (SD) alone.<br /> Method and materials: Thirty-six patients younger than 30 years of age were randomly allocated to one of three treatment groups: SD plus placebo, systemic MXF with SD, or AM+MT combined with SD. Subgingival samples were studied. The effects of the therapies on probing depth and clinical attachment level, including interactions with Aa, Pg, or Tf at baseline, were explored using regression models.<br /> Results: At 6 months, all treatment groups showed improved clinical outcomes in patients harboring Aa, Pg, or Tf at baseline compared to the patients who did not harbor these microorganisms at baseline. Indeed, in the presence of Aa, Pg, or Tf at baseline, the patients receiving antimicrobial protocols showed the most significant gains compared to the control group. Furthermore, the percentage of sites ≥ 6 mm was reduced in the test groups, compared to the control group; these periodontopathogens were not present in sites with probing depth ≥ 6 mm in the MXF group. The interactions of Aa, Pg, and Tf with the test groups significantly improved clinical parameters at 6 months (P < .001). Interestingly, the R2 value in the models that explored clinical attachment gain produced a high degree of correlation (> 0.75), indicating that a high percentage (> 75%) of the total variation in clinical attachment level gain can be explained by the independent variables.<br /> Conclusions: Although all patients benefited from the treatments, patients harboring Aa, Pg, or Tf at baseline showed improved clinical benefits at 6 months, suggesting that Aa, Pg, or Tf at baseline may change the effects of systemic MXF and AM+MT in generalized periodontitis. After 6 months, Aa, Pg, and Tf were not present in sites with probing depth ≥ 6 mm in the MXF group.</p>.
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11
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Lund Håheim L, Schwarze PE, Thelle DS, Nafstad P, Rønningen KS, Olsen I. Low levels of antibodies for the oral bacterium Tannerella forsythia predict cardiovascular disease mortality in men with myocardial infarction: A prospective cohort study. Med Hypotheses 2020; 138:109575. [PMID: 32088522 DOI: 10.1016/j.mehy.2020.109575] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 11/07/2019] [Revised: 01/01/2020] [Accepted: 01/16/2020] [Indexed: 12/16/2022]
Abstract
Antibody levels to periodontal pathogens in prediction of cardiovascular disease (CVD) mortality were explored using data from a health survey in Oslo in 2000 (Oslo II-study) with 12 1/2 years follow-up. IgG antibodies to four common periodontal pathogens; Tannerella forsythia (TF), Porphyromonas gingivalis (PG), and Treponema denticola (TD) all termed collectively the "red complex", and Aggregatibacter actinomycetemcomitans(AA) were analysed. The study sample consisted of 1172 men drawn from a cohort of 6,530 men who participated in the Oslo II-study, where they provided information on medical and dental history. Of the study sample, 548 men had reported prior myocardial infarction (MI) at baseline whereas the remaining 624 men were randomly drawn from the ostensibly healthy participants for comparative analyses. Dental anamnestic information included tooth extractions and oral infections. An inverse relation was found for trend by the quartile risk level of TF predicting CVD mortality, p-value for trend = 0.017. Comparison of the first to fourth quartile of TF antibodies resulted in hazard ratio (HR) = 1.82, 95% confidence interval 1.12-2.94, p = 0.015, adjusted for age, education, diabetes, daily smoking, and systolic blood pressure. Specificity comparing decile 1 to deciles 2-10 of TF predicting mortality was 92.3%. We found an increased HR by low levels of antibodies to the bacterium T. forsythia predicting CVD mortality in a 12 ½ years follow-up in persons who had experienced an MI but not among non-MI men. This novel finding constitutes a plausible causal link between oral infections and CVD mortality.
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Affiliation(s)
- Lise Lund Håheim
- Department of Oral Biology, Dental Faculty, University of Oslo, Norway.
| | - P E Schwarze
- Norwegian Institute for Public Health, Oslo, Norway
| | - D S Thelle
- Institute of Basic Medical Sciences, Medical Faculty, University of Oslo, Norway; Department of Community Medicine and Public Health, University of Gothenburg, Sweden
| | - P Nafstad
- Norwegian Institute for Public Health, Oslo, Norway; Institute of Health and Society, Medical Faculty, University of Oslo, Norway
| | - K S Rønningen
- Department of Paediatric Research, Division for Women and Children, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - I Olsen
- Department of Oral Biology, Dental Faculty, University of Oslo, Norway
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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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