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Guo L, Zhou J, Xie F, Lang Q, Xu Y, Chen L, Xue Z, Mao Y, Wang R. The profile of oral microbiome in Chinese elderly population associated with aging and systemic health status. BMC Oral Health 2024; 24:895. [PMID: 39103866 PMCID: PMC11299356 DOI: 10.1186/s12903-024-04676-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 07/29/2024] [Indexed: 08/07/2024] Open
Abstract
OBJECTIVE The health of oral cavity is considered as an important indicator of aging. Oral microbiota is highly associated with the oral health, while the variation of oral microbiome in elderly population and characteristic microbes associated with aging remain unclear. SUBJECTS AND METHODS In this study, 130 elderly subjects were recruited and divided into 3 groups according to their age: Stage I group (65 ≤ years < 70), Stage II group (70 ≤ years < 75), and Stage III group (75 ≤ years < 80). Their physiological indices were analyzed with using Illumina MiSeq platform and the oral microbiome was determined by high-throughput sequencing. RESULTS Along with aging, the level of fasting blood glucose, systolic pressure and monocytes are significantly increased. No significant difference was detected on the whole structure of the oral microbiome among groups. While using Metastats and Spearman's correlation analysis, specific bacteria were identified as potential age- or health index-related bacterial genera including Fusobacterium, Parvimonas, Porphyromonas, Aminobacter, Collinsella, Clostridium and Acinetobacter. CONCLUSION Our study revealed that the composition structure of salivary microbiota in elderly population was relatively stable while specific bacteria were correlated with age and health status, which is promising to be served as health indicators of the elderly after further exploration.
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Affiliation(s)
- Liqiang Guo
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jie Zhou
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Feng Xie
- Beicai Community Health Service Center of Pudong New District, No. 271 Lianyuan Road, Shanghai, China
| | - Qing Lang
- Beicai Community Health Service Center of Pudong New District, No. 271 Lianyuan Road, Shanghai, China
| | - Yuesong Xu
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Luping Chen
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhengsheng Xue
- China Mengniu Dairy Company LimitedGlobal R&D Innovation Center, Inner Mongolia Mengniu Dairy (Group) Co. Ltd., Hohhot, 011500, China
| | - Yuejian Mao
- China Mengniu Dairy Company LimitedGlobal R&D Innovation Center, Inner Mongolia Mengniu Dairy (Group) Co. Ltd., Hohhot, 011500, China.
| | - Ruirui Wang
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Miguel MMV, Shaddox LM. Grade C Molar-Incisor Pattern Periodontitis in Young Adults: What Have We Learned So Far? Pathogens 2024; 13:580. [PMID: 39057807 PMCID: PMC11279578 DOI: 10.3390/pathogens13070580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Revised: 06/26/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Grade C molar-incisor pattern periodontitis (C-MIP) is a disease that affects specific teeth with an early onset and aggressive progression. It occurs in systemically healthy patients, mostly African descendants, at an early age, with familial involvement, minimal biofilm accumulation, and minor inflammation. Severe and rapidly progressive bone loss is observed around the first molars and incisors. This clinical condition has been usually diagnosed in children and young adults with permanent dentition under 30 years of age. However, this disease can also affect the primary dentition, which is not as frequently discussed in the literature. Radiographic records have shown that most patients diagnosed in the permanent dentition already presented disease signs in the primary dentition. A hyperresponsive immunological profile is observed in local (gingival crevicular fluid-GCF) and systemic environments. Siblings have also displayed a heightened inflammatory profile even without clinical signs of disease. A. actinomycetemcomitans has been classified as a key pathogen in C-MIP in both dentitions. Scaling and root planning associated with systemic antibiotics is the current gold standard to treat C-MIP, leading to GCF biomarker reduction, some systemic inflammatory response modulation and microbiome profile changes to a healthy-site profile. Further studies should focus on other possible disease-contributing risk factors.
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Affiliation(s)
- Manuela Maria Viana Miguel
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY 40508, USA;
| | - Luciana Macchion Shaddox
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY 40508, USA;
- Department of Oral Health Practice, Periodontology Division, College of Dentistry, University of Kentucky, Lexington, KY 40508, USA
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3
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Koo SS, Fernandes JG, Li L, Huang H, Aukhil I, Harrison P, Diaz PI, Shaddox LM. Evaluation of microbiome in primary and permanent dentition in grade C periodontitis in young individuals. J Periodontol 2024; 95:650-661. [PMID: 38476115 PMCID: PMC11265979 DOI: 10.1002/jper.23-0504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 12/01/2023] [Accepted: 01/09/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND The aim of the present study was to evaluate the subgingival microbiome in patients with grade C molar-incisor pattern periodontitis (C-MIP) affecting the primary or permanent dentitions. METHODS DNA was isolated from subgingival biofilm samples from diseased and healthy sites from 45 C-MIP patients and subjected to phylogenetic microarray analysis. C-MIP sites were compared between children affected in the primary to those affected in the permanent dentitions. Within-subject differences between C-MIP-affected sites and dentition-matched healthy sites were also evaluated. RESULTS C-MIP sites of subjects affected in the primary dentition showed partially overlapping but distinct microbial communities from C-MIP permanent dentition sites (p < 0.05). Differences were due to increased levels in primary C-MIP sites of certain species of the genera Capnocytophaga and Leptotrichia, while C-MIP permanent dentition sites showed higher prevalence of Filifactor alocis. Aggregatibacter actinomycetemcomitans (Aa) was among species seen in high prevalence and levels in both primary and permanent C-MIP sites. Moreover, both permanent and primary C-MIP sites showed distinct microbial communities when compared to dentition-matched healthy sites in the same subject (p < 0.01). CONCLUSIONS Primary and permanent teeth with C-MIP showed a dysbiotic microbiome, with children affected in the primary dentition showing a distinct profile from those affected in the permanent dentition. However, Aa was enriched in both primary and permanent diseased sites, confirming that this microorganism is implicated in C-MIP in both dentitions.
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Affiliation(s)
- Sungeun Stephanie Koo
- Department of Periodontology, School of Dental Medicine, University of Connecticut, Farmington, Connecticut, USA
| | - Jussara G Fernandes
- Department of Oral Health Practice, Periodontology Division and Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
| | - Lu Li
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, State University of New York, Buffalo, New York, USA
- UB Microbiome Center, University at Buffalo, State University of New York, Buffalo, New York, USA
| | - Hong Huang
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida, USA
| | - Ikramuddin Aukhil
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida, USA
| | - Peter Harrison
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida, USA
- Department of Periodontology, School of Dental Science, Trinity College Dublin, Dublin, Ireland
| | - Patricia I Diaz
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, State University of New York, Buffalo, New York, USA
- UB Microbiome Center, University at Buffalo, State University of New York, Buffalo, New York, USA
| | - Luciana M Shaddox
- Department of Oral Health Practice, Periodontology Division and Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida, USA
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4
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Duarte PM, Felix E, Santos VR, Figueiredo LC, da Silva HDP, Mendes JAV, Feres M, Miranda TS. Patients with type 2 diabetes and severe periodontitis harbor a less pathogenic subgingival biofilm than normoglycemic individuals with severe periodontitis. J Periodontol 2023; 94:1210-1219. [PMID: 37133975 DOI: 10.1002/jper.22-0657] [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: 11/09/2022] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/04/2023]
Abstract
BACKGROUND Whether, and to what extent, diabetes mellitus (DM) can affect the subgingival biofilm composition remains controversial. Thus, the aim of this study was to compare the composition of the subgingival microbiota of non-diabetic and type 2 diabetic patients with periodontitis using 40 "biomarker bacterial species." METHODS Biofilm samples of shallow (probing depth [PD] and clinical attachment level [CAL] ≤3 mm without bleeding) and deep sites (PD and CAL ≥5 mm with bleeding) of patients with or without type 2 DM were evaluated for levels/proportions of 40 bacterial species by checkerboard DNA-DNA hybridization. RESULTS A total of 828 subgingival biofilm samples from 207 patients with periodontitis (118 normoglycemic and 89 with type 2 DM) were analyzed. The levels of most of the bacterial species evaluated were reduced in the diabetic compared with the normoglycemic group, both in shallow and in deep sites. The shallow and deep sites of patients with type 2 DM presented higher proportions of Actinomyces species, purple and green complexes, and lower proportions of red complex pathogens than those of normoglycemic patients (P < 0.05). CONCLUSIONS Patients with type 2 DM have a less dysbiotic subgingival microbial profile than normoglycemic patients, including lower levels/proportions of pathogens and higher levels/proportions of host-compatible species. Thus, type 2 diabetic patients seem to require less remarkable changes in biofilm composition than non-diabetic patients to develop the same pattern of periodontitis.
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Affiliation(s)
- Poliana M Duarte
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida, USA
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Edcarlos Felix
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Vanessa R Santos
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Luciene C Figueiredo
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Hélio D P da Silva
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Juliana A V Mendes
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Tamires S Miranda
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
- Department of Periodontology, College of Dentistry, São Judas Tadeu University, São Paulo, SP, Brazil
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5
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Reis AA, Monteiro MF, Bonilha GM, Saraiva L, Araújo C, Santamaria MP, Casati MZ, Kumar P, Casarin RCV. Parents with periodontitis drive the early acquisition of dysbiotic microbiomes in their offspring. J Clin Periodontol 2023; 50:890-904. [PMID: 37086047 DOI: 10.1111/jcpe.13815] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 04/23/2023]
Abstract
AIM To evaluate the microbial colonization in different dentition phases on individuals from 0 to 18 years of age belonging to families with a history of periodontitis compared to descendants of periodontally healthy parents. MATERIALS AND METHODS The offspring of subjects with periodontitis ('Perio' group) and the offspring of periodontally healthy subjects ('Healthy' group), matched for gender and age, were included in this cross-sectional study and divided according to the dentition phase: pre-dentate, primary, mixed and permanent. The patients were clinically assessed, and their saliva was collected. DNA was extracted, and V1-V3 and V4-V5 regions of the 16S rRNA gene were sequenced. RESULTS Fifty children of parents with periodontitis and 50 from healthy parents were included in the study and divided according to the dentition phase: pre-dentate (n = 5/group), primary dentition (n = 15/group), mixed dentition (n = 15/group) and permanent dentition (n = 15/group) in each group. The microbiome composition was different between dentitions for both groups. Children of the Perio group presented a microbial diversity different from that of the Healthy group in mixed and permanent dentitions. The more intense shift in the community occurred between primary and mixed dentition in the Perio group, while the transition between mixed and permanent dentition was the period with greater changes in the microbiome for the Healthy group. Furthermore, a pathogen-rich environment-higher prevalence and abundance of periodontitis-associated species such as Prevotella spp., Selenomonas spp., Leptotrichia spp., Filifactor alocis, Prevotella intermedia, Treponema denticola and Tannerella forsythia- was observed in the Perio group. CONCLUSIONS The parents' periodontal status significantly affects the microbiome composition of their offspring from an early age. The mixed dentition was the phase associated with establishing a dysbiotic and pathogen-rich microbiome in descendants of parents with periodontitis.
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Affiliation(s)
| | | | | | - Luciana Saraiva
- School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Cassia Araújo
- Institute of Health Science, São Paulo State University, São Paulo, Brazil
| | | | | | - Purnima Kumar
- School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
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Duarte JCM, Costa IB, Teixeira DDB, Fregatto LF, Mendes CG, Mascarin AMN, da Silveira Junior SB, Serva BEBM, Comar LP, da Silva RG, Buchaim DV, Buchaim RL, Chagas EFB, Agostinho Junior F, Cola PC. Biochemical and Microbiological Aspects of the Oral Cavity of Children and Young People with Neurological Impairment and Oropharyngeal Dysphagia. Life (Basel) 2023; 13:1342. [PMID: 37374125 DOI: 10.3390/life13061342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 05/29/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
The components and the salivary flow have a direct influence on the composition of the oral microbiota of children and young people with oropharyngeal dysphagia, and studies have already demonstrated the excessive accumulation of supragingival dental calculus in individuals with enteral nutrition. This study aimed to compare the oral hygiene, biochemical, and microbiological aspects of the oral cavity of children and young people with neurological impairment and oropharyngeal dysphagia. Forty children and young people with neurological impairment and oropharyngeal dysphagia were enrolled and divided into two groups: group I, encompassing 20 participants fed via gastrostomy; and group II, encompassing 20 participants fed via the oral route. Oral hygiene and salivary pH and flow were assessed, and a polymerase chain reaction was performed to evaluate the messenger RNA expressions of Porphyromonas gingivalis, Tanerella forsythia, and Treponema denticola. In groups I and II, the mean Oral Hygiene Index-Simplified scores were 4 and 2, respectively, showing a significant difference; the mean Calculus Index scores were 2 and 0, respectively, showing a significant difference; and the mean pH was 7.5 and 6.0, respectively, showing a significant difference. Bacterial analysis indicated no association between the two groups. It can be concluded that children and young people who use gastrostomy had a poorer oral hygiene, greater dental calculus deposition, and higher salivary pH. The saliva of patients in both groups contained Porphyromonas gingivalis, Tanerella forsythia, and Treponema denticola.
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Affiliation(s)
- Janaina Costa Marangon Duarte
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
| | - Isabela Bazzo Costa
- Postgraduate Program in Animal Health, Production and Environment, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
| | - Daniel de Bortoli Teixeira
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
- Postgraduate Program in Animal Health, Production and Environment, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
| | - Luiz Fernando Fregatto
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
- Nursing School, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
- UNIMAR Beneficent Hospital (HBU), University of Marilia (UNIMAR), Marilia 17525-160, Brazil
| | - Claudemir Gregorio Mendes
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
- Faculty of Pharmacy and Biomedicine, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
| | - Aline Maria Noli Mascarin
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
- UNIMAR Beneficent Hospital (HBU), University of Marilia (UNIMAR), Marilia 17525-160, Brazil
| | - Salum Bueno da Silveira Junior
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
| | | | - Livia Picchi Comar
- Dentistry School, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
| | - Roberta Gonçalves da Silva
- Dysphagia Research Rehabilitation Center, Graduate of Speech, Language and Hearing Sciences Department, São Paulo State University (UNESP), Marilia 17525-900, Brazil
| | - Daniela Vieira Buchaim
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
- Medical School, University Center of Adamantina (UNIFAI), Adamantina 17800-000, Brazil
| | - Rogerio Leone Buchaim
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
- Graduate Program in Anatomy of Domestic and Wild Animals, Faculty of Veterinary Medicine and Animal Science, University of São Paulo (FMVZ/USP), São Paulo 05508-270, Brazil
| | - Eduardo Federighi Baisi Chagas
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
| | - Francisco Agostinho Junior
- Child's Love Project, Projeto Amor de Criança, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
| | - Paula Cristina Cola
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
- Speech Therapy Department, São Paulo State University (UNESP), Marilia 17525-900, Brazil
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Mensi M, Caselli E, D'Accolti M, Soffritti I, Farina R, Scotti E, Guarnelli ME, Fabbri C, Garzetti G, Marchetti S, Sordillo A, Trombelli L. Efficacy of the additional use of subgingival air-polishing with erythritol powder in the treatment of periodontitis patients: a randomized controlled clinical trial. Part II: effect on sub-gingival microbiome. Clin Oral Investig 2023; 27:2547-2563. [PMID: 36538094 PMCID: PMC10264538 DOI: 10.1007/s00784-022-04811-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 11/27/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES To date, scarce evidence exists around the application of subgingival air-polishing during treatment of severe periodontitis. The aim of this study was to evaluate the effect on the health-related and periodontitis-related subgingival microbiome of air-polishing during non-surgical treatment of deep bleeding pockets in stage III-IV periodontitis patients. MATERIALS AND METHODS Forty patients with stage III-IV periodontitis were selected, and pockets with probing depth (PD) 5-9 mm and bleeding on probing were selected as experimental sites. All patients underwent a full-mouth session of erythritol powder supragingival air-polishing and ultrasonic instrumentation. Test group received additional subgingival air-polishing at experimental sites. Subgingival microbial samples were taken from the maxillary experimental site showing the deepest PD at baseline. Primary outcome of the first part of the present study was the 3-month change in the number of experimental sites. Additional analysis of periodontal pathogens and other sub-gingival plaque bacteria sampled at one experimental site at baseline and 3 months following treatment was performed through a real-time quantitative PCR microarray. RESULTS In the test group, a statistical increase of some health-related species was observed (Abiotropha defectiva, Capnocytophaga sputigena, and Lautropia mirabilis), together with the decrease of pathogens such as of Actinomyces israelii, Catonella morbi, Filifactor alocis, Porphyromonas endodontalis, Sele-nomonas sputigena, Tannerella forsythia, Treponema denticola, and Treponema socranskii. In the control group, statistical significance was found only in the decrease of Filifactor alocis, Tannerella forsythia, and Treponema socranskii. CONCLUSIONS The addition of erythritol-chlorhexidine powder seems to cause a shift of the periodontal micro-biome toward a more eubiotic condition compared to a conventional treatment. The study was registered on Clinical Trials.gov (NCT04264624). CLINICAL RELEVANCE Subgingival air-polishing could help re-establishing a eubiotic microbioma in deep bleeding periodontal pockets after initial non-surgical treatment.
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Affiliation(s)
- Magda Mensi
- Section of Periodontics, School of Dentistry, Department of Surgical Specialties, Radiological Science and Public Health, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy.
- U.O.C. Odontostomatologia - ASST Degli Spedali Civili Di Brescia, Brescia, Italy.
| | - Elisabetta Caselli
- Section of Microbiology and LTTA, Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Maria D'Accolti
- Section of Microbiology and LTTA, Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Irene Soffritti
- Section of Microbiology and LTTA, Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Roberto Farina
- Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Ferrara, Italy
- Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (AUSL), Ferrara, Italy
| | - Eleonora Scotti
- Section of Periodontics, School of Dentistry, Department of Surgical Specialties, Radiological Science and Public Health, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy
- U.O.C. Odontostomatologia - ASST Degli Spedali Civili Di Brescia, Brescia, Italy
| | - Maria Elena Guarnelli
- Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Ferrara, Italy
- Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (AUSL), Ferrara, Italy
| | - Chiara Fabbri
- Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Ferrara, Italy
- Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (AUSL), Ferrara, Italy
| | - Gianluca Garzetti
- Section of Periodontics, School of Dentistry, Department of Surgical Specialties, Radiological Science and Public Health, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy
- U.O.C. Odontostomatologia - ASST Degli Spedali Civili Di Brescia, Brescia, Italy
| | - Silvia Marchetti
- Section of Periodontics, School of Dentistry, Department of Surgical Specialties, Radiological Science and Public Health, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy
- U.O.C. Odontostomatologia - ASST Degli Spedali Civili Di Brescia, Brescia, Italy
| | - Annamaria Sordillo
- Section of Periodontics, School of Dentistry, Department of Surgical Specialties, Radiological Science and Public Health, University of Brescia, P.Le Spedali Civili 1, 25123, Brescia, Italy
| | - Leonardo Trombelli
- Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Ferrara, Italy
- Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (AUSL), Ferrara, Italy
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ARAÚJO LL, LOURENÇO TGB, COLOMBO APV. Periodontal disease severity is associated to pathogenic consortia comprising putative and candidate periodontal pathogens. J Appl Oral Sci 2023; 31:e20220359. [PMID: 36629716 PMCID: PMC9828885 DOI: 10.1590/1678-7757-2022-0359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/10/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Based on a holistic concept of polymicrobial etiology, we have hypothesized that putative and candidate periodontal pathogens are more frequently detected in consortia than alone in advanced forms of periodontal diseases (PD). OBJECTIVE To correlate specific consortia of periodontal pathogens with clinical periodontal status and severity of periodontitis. METHODOLOGY Subgingival biofilm was obtained from individuals with periodontal health (113, PH), gingivitis (91, G), and periodontitis (209, P). Genomic DNA was purified and the species Aggregatibacter actinomycetemcomitans (Aa), Aa JP2-like strain, Porphyromonas gingivalis (Pg), Dialister pneumosintes (Dp), and Filifactor alocis (Fa) were detected by PCR. Configural frequency and logistic regression analyses were performed to correlate microbial consortia and PD. RESULTS Aa + Pg in the presence of Dp (phi=0.240; χ2=11.9, p<0.01), as well as Aa JP2 + Dp + Fa (phi=0.186, χ2=4.6, p<0.05) were significantly more associated in advanced stages of P. The consortium Aa + Fa + Dp was strongly associated with deep pocketing and inflammation (p<0.001). The best predictors of disease severity (80% accuracy) included older age (OR 1.11 [95% CI 1.07 - 1.15], p<0.001), Black/African-American ancestry (OR 1.89 [95% CI 1.19 - 2.99], p=0.007), and high frequency of Aa + Pg + Dp (OR 3.04 [95% CI 1.49 - 6.22], p=0.002). CONCLUSION Specific microbial consortia of putative and novel periodontal pathogens, associated with demographic parameters, correlate with severe periodontitis, supporting the multifactorial nature of PD.
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Affiliation(s)
- Lélia Lima ARAÚJO
- Universidade Federal do Rio de JaneiroFaculdade de OdontologiaPrograma de Pós-Graduação em OdontologiaRio de JaneiroBrasilUniversidade Federal do Rio de Janeiro, Faculdade de Odontologia, Programa de Pós-Graduação em Odontologia (Periodontia), Rio de Janeiro, Brasil.,Universidade Federal do Rio de JaneiroInstituto de MicrobiologiaDepartamento de Microbiologia MédicaRio de JaneiroBrasilUniversidade Federal do Rio de Janeiro, Instituto de Microbiologia, Departamento de Microbiologia Médica, Rio de Janeiro, Brasil.
| | - Talita Gomes Baêta LOURENÇO
- Universidade Federal do Rio de JaneiroInstituto de MicrobiologiaDepartamento de Microbiologia MédicaRio de JaneiroBrasilUniversidade Federal do Rio de Janeiro, Instituto de Microbiologia, Departamento de Microbiologia Médica, Rio de Janeiro, Brasil.
| | - Ana Paula Vieira COLOMBO
- Universidade Federal do Rio de JaneiroFaculdade de OdontologiaPrograma de Pós-Graduação em OdontologiaRio de JaneiroBrasilUniversidade Federal do Rio de Janeiro, Faculdade de Odontologia, Programa de Pós-Graduação em Odontologia (Periodontia), Rio de Janeiro, Brasil.,Universidade Federal do Rio de JaneiroInstituto de MicrobiologiaDepartamento de Microbiologia MédicaRio de JaneiroBrasilUniversidade Federal do Rio de Janeiro, Instituto de Microbiologia, Departamento de Microbiologia Médica, Rio de Janeiro, Brasil.
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Soltero-Rivera M, Vapniarsky N, Rivas IL, Arzi B. Clinical, radiographic and histopathologic features of early-onset gingivitis and periodontitis in cats (1997-2022). J Feline Med Surg 2023; 25:1098612X221148577. [PMID: 36651926 PMCID: PMC10812046 DOI: 10.1177/1098612x221148577] [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] [Indexed: 01/19/2023]
Abstract
OBJECTIVES This study aimed to characterize the clinical, radiographic and histopathologic features of early-onset gingivitis (EOG) and periodontitis in cats. METHODS The medical records database was searched for cats diagnosed with histologically confirmed EOG or periodontitis from 1997 to 2022. Information such as medical history, lifestyle factors, clinical presentation, radiographic and histopathologic features were included for 27 client-owned cats. Response to treatment and long-term follow-up was also recorded. RESULTS Moderate-to-severe periodontal disease was radiographically confirmed in 78% (21/27) of cats with moderate-to-severe EOG, compared with the evidence of periodontal disease noted in 30% (8/27) of cases during awake oral examination. Horizontal bone loss, along with missing teeth, were the predominant radiographic features noted in 89% (24/27) of cases. The predominant histopathologic feature was moderate-to-severe, erosive-to-ulcerative, neutrophilic and lymphoplasmacytic inflammation with varying degrees of epithelial and stromal hyperplasia. Two cats developed feline chronic gingivostomatitis (FCGS)-like lesions, and seven cats exhibited worsening of aggressive periodontitis (AP). Lack of improvement in the severity of gingivitis or clinical signs evident at the first follow-up appointment was significantly associated with progression of disease (P = 0.004). CONCLUSIONS AND RELEVANCE The results of this study demonstrate the importance of oral evaluations in cats as early as 6 months of age. For cats exhibiting substantial gingivitis, an anesthetized evaluation, periodontal treatment and long-term monitoring are recommended. Given the high frequency of moderate-to-severe periodontitis encountered in these cats, clients should be informed about the potential need for tooth extractions. EOG may progress to AP. Finally, this study suggests that there could be a link between EOG and FCGS; however, further studies are needed to better characterize this condition and establish any potential link between the two entities.
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Affiliation(s)
- Maria Soltero-Rivera
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Natalia Vapniarsky
- Department of Pathology, Microbiology and Immunology School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Iris L Rivas
- College of Agricultural and Environmental Sciences, Department of Entomology and Nematology, Animal Biology, University of California, Davis, CA, USA
| | - Boaz Arzi
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, CA, USA
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10
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Faveri M, Retamal-Valdes B, Mestnik MJ, de Figueiredo LC, Barão VAR, Souza JGS, Duarte PM, Feres M. Microbiological effects of amoxicillin plus metronidazole in the treatment of young patients with Stages III and IV periodontitis: A secondary analysis from a 1-year double-blinded placebo-controlled randomized clinical trial. J Periodontol 2022; 94:498-508. [PMID: 35869939 DOI: 10.1002/jper.21-0171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/09/2022] [Accepted: 07/11/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND Despite the body of evidence supporting the clinical benefits of metronidazole (MTZ) and amoxicillin (AMX) in the treatment of young patients with periodontitis, the microbiological outcomes of this antibiotic protocol have been less explored. This study evaluated the microbiological effects of adjunctive MTZ+AMX in the treatment of young patients with periodontitis. METHODS Subjects with periodontitis Stages III or IV and ≤30 years old were randomly allocated to receive scaling and root planing (SRP) with placebo (n = 15) or with MTZ (400 mg) and AMX (500 mg) three times a day for 14 days (n = 15). Nine subgingival biofilm samples per subject (three samples from each probing depth (PD) category: ≤3, 4-6, and ≥7 mm) were collected at baseline and 3-, 6-, and 12-months post-treatment and individually analyzed for 40 bacterial species by checkerboard DNA-DNA hybridization. RESULTS Thirty subjects (15/group) with mean ages 27.6 ± 3.5 (control) and 26.8 ± 3.9 (test) were included. At 12 months post-therapy, the antibiotic group harbored lower proportions of red complex (1.3%) than the placebo group (12.5%) (p < 0.05). SRP + MTZ+AMX was more effective than mechanical treatment in reducing levels/proportions of several pathogens and increasing proportions of Actinomyces species (p < 0.05). Levels/proportions of Aggregatibacter actinomycetemcomitans were only reduced in the antibiotic group (p < 0.05). This group also exhibited greater reduction in the number of sites with PD ≥5 mm and higher percentage of subjects reaching the clinical end point for treatment (≤4 sites with PD ≥5 mm) than the control group (p < 0.05). CONCLUSION SRP+MTZ+AMX allowed for establishing a long-term healthier subgingival biofilm community and periodontal clinical condition, than SRP only.
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Affiliation(s)
- Marcelo Faveri
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Belen Retamal-Valdes
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Maria Josefa Mestnik
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | | | - Valentim Adelino Ricardo Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - João Gabriel Silva Souza
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil.,Dental Science School (Faculdade de Ciências Odontológicas-FCO), Montes, Claros, Brazil
| | - Poliana Mendes Duarte
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil.,Department of Periodontology, University of Florida College of Dentistry, Gainesville, Florida, USA
| | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil.,The Forsyth Institute, Cambridge, Massachusetts, USA
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11
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Djemai K, Drancourt M, Tidjani Alou M. Bacteria and Methanogens in the Human Microbiome: a Review of Syntrophic Interactions. MICROBIAL ECOLOGY 2022; 83:536-554. [PMID: 34169332 DOI: 10.1007/s00248-021-01796-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Methanogens are microorganisms belonging to the Archaea domain and represent the primary source of biotic methane. Methanogens encode a series of enzymes which can convert secondary substrates into methane following three major methanogenesis pathways. Initially recognized as environmental microorganisms, methanogens have more recently been acknowledged as host-associated microorganisms after their detection and initial isolation in ruminants in the 1950s. Methanogens have also been co-detected with bacteria in various pathological situations, bringing their role as pathogens into question. Here, we review reported associations between methanogens and bacteria in physiological and pathological situations in order to understand the metabolic interactions explaining these associations. To do so, we describe the origin of the metabolites used for methanogenesis and highlight the central role of methanogens in the syntrophic process during carbon cycling. We then focus on the metabolic abilities of co-detected bacterial species described in the literature and infer from their genomes the probable mechanisms of their association with methanogens. The syntrophic interactions between bacteria and methanogens are paramount to gut homeostasis. Therefore, any dysbiosis affecting methanogens might impact human health. Thus, the monitoring of methanogens may be used as a bio-indicator of dysbiosis. Moreover, new therapeutic approaches can be developed based on their administration as probiotics. We thus insist on the importance of investigating methanogens in clinical microbiology.
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Affiliation(s)
- Kenza Djemai
- IRD, MEPHI, IHU Méditerranée Infection, Aix-Marseille-University, 19-12 Bd Jean Moulin, 13005, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Michel Drancourt
- IRD, MEPHI, IHU Méditerranée Infection, Aix-Marseille-University, 19-12 Bd Jean Moulin, 13005, Marseille, France
| | - Maryam Tidjani Alou
- IRD, MEPHI, IHU Méditerranée Infection, Aix-Marseille-University, 19-12 Bd Jean Moulin, 13005, Marseille, France.
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12
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Subgingival Microbiota Profile in Association with Cigarette Smoking in Young Adults: A Cross-Sectional Study. Dent J (Basel) 2021; 9:dj9120150. [PMID: 34940047 PMCID: PMC8700501 DOI: 10.3390/dj9120150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/27/2021] [Accepted: 12/07/2021] [Indexed: 01/10/2023] Open
Abstract
While smoking is recognized as one of the factors for the development and progression of periodontal diseases, a relation between the composition of the subgingival microbiota and smoking is yet to be elucidated. The aim of this study was to investigate the prevalence of subgingival bacteria in young smokers and non-smokers without clinical signs of periodontal disease. In this cross-sectional study, performed at the Department of Pharmacology, School of Dental Medicine, University of Zagreb, we enrolled 32 periodontally healthy smokers and 32 non-smokers, aged 25–35 years old. The number of oral bacteria and the prevalence of particular bacteria were assessed for each subject. Subgingival plaque samples were collected with sterile paper points from two first molars for microbiological analyses with MALDI-TOF mass spectrometry. In smokers, a significantly higher prevalence of Actinomyces odontolyticus was observed compared to non-smokers, and a significantly lower prevalence of Streptococcus sanguinis was observed compared to non-smokers. Smoking affects the composition of subgingival microbiota, either via depletion of beneficial bacteria or the increase in pathogenic bacteria.
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13
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The effect of Brazilian propolis type-3 against oral microbiota and volatile sulfur compounds in subjects with morning breath malodor. Clin Oral Investig 2021; 26:1531-1541. [PMID: 34392403 DOI: 10.1007/s00784-021-04125-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 08/03/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES To evaluate propolis type-3 mouthrinse effects on the concentration of volatile sulfur compounds (VSCs) and on tongue dorsum microbial profile. MATERIALS AND METHODS A three-step double-blind, crossover, randomized study with 10 individuals divided into three groups: I-placebo (P); II-ethanolic extract of propolis type-3 3% (EEP); and III-chlorhexidine 0.12% (CHX) and instructed to rinse twice daily for 5 days. Each experimental period was followed by a 21-day washout interval. Morning mouth breath was assessed by VSC concentrations and microbiological samples were obtained from tongue dorsum at baseline and the end of period of rinses and analyzed using checkerboard DNA-DNA hybridization technique for 39 bacterial species. RESULTS CHX and EEP presented the lowest VSC concentration when compared with placebo (p < 0.05). Even in the absence of mechanical plaque control, CHX and EEP treatments reduced VSC levels and there were no statistical differences for VSC measurement between CHX and EEP. There was a significant reduction in mean counts of 10 species including some VSC producers (Prevotella intermedia, Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia) by EEP. Total counts of organisms, gram-negative and gram-positive bacterial species showed a decrease for EEP and CHX (p < 0.05). In addition, no statistical difference was observed between EEP and CHX (p > 0.05). A positive correlation was observed between decrease of bacterial counts and decrease of VCSs concentration for the EEP and CHX. CONCLUSIONS The use of a 3% propolis type-3 mouthrinse is an effective way to prevent morning bad breath. Thus, propolis may be a promising agent for the treatment of halitosis. CLINICAL RELEVANCE Propolis type-3 may be used as adjuvant treatment for morning breath malodor.
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14
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Oba PM, Carroll MQ, Alexander C, Valentine H, Somrak AJ, Keating SCJ, Sage AM, Swanson KS. Microbiota populations in supragingival plaque, subgingival plaque, and saliva habitats of adult dogs. Anim Microbiome 2021; 3:38. [PMID: 34001282 PMCID: PMC8130298 DOI: 10.1186/s42523-021-00100-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 04/30/2021] [Indexed: 02/01/2023] Open
Abstract
Background Oral diseases are common in dogs, with microbiota playing a prominent role in the disease process. Oral cavity habitats harbor unique microbiota populations that have relevance to health and disease. Despite their importance, the canine oral cavity microbial habitats have been poorly studied. The objectives of this study were to (1) characterize the oral microbiota of different habitats of dogs and (2) correlate oral health scores with bacterial taxa and identify what sites may be good options for understanding the role of microbiota in oral diseases. We used next-generation sequencing to characterize the salivary (SAL), subgingival (SUB), and supragingival (SUP) microbial habitats of 26 healthy adult female Beagle dogs (4.0 ± 1.2 year old) and identify taxa associated with periodontal disease indices. Results Bacterial species richness was highest for SAL, moderate for SUB, and lowest for SUP samples (p < 0.001). Unweighted and weighted principal coordinates plots showed clustering by habitat, with SAL and SUP samples being the most different from one another. Bacteroidetes, Proteobacteria, Firmicutes, Fusobacteria, Actinobacteria, and Spirochaetes were the predominant phyla in all habitats. Paludibacter, Filifactor, Peptostreptococcus, Fusibacter, Anaerovorax, Fusobacterium, Leptotrichia, Desulfomicrobium, and TG5 were enriched in SUB samples, while Actinomyces, Corynebacterium, Leucobacter, Euzebya, Capnocytophaga, Bergeyella, Lautropia, Lampropedia, Desulfobulbus, Enhydrobacter, and Moraxella were enriched in SUP samples. Prevotella, SHD-231, Helcococcus, Treponema, and Acholeplasma were enriched in SAL samples. p-75-a5, Arcobacter, and Pasteurella were diminished in SUB samples. Porphyromonas, Peptococcus, Parvimonas, and Campylobacter were diminished in SUP samples, while Tannerella, Proteocalla, Schwartzia, and Neisseria were diminished in SAL samples. Actinomyces, Corynebacterium, Capnocytophaga, Leptotrichia, and Neisseria were associated with higher oral health scores (worsened health) in plaque samples. Conclusions Our results demonstrate the differences that exist among canine salivary, subgingival plaque and supragingival plaque habitats. Salivary samples do not require sedation and are easy to collect, but do not accurately represent the plaque populations that are most important to oral disease. Plaque Actinomyces, Corynebacterium, Capnocytophaga, Leptotrichia, and Neisseria were associated with higher (worse) oral health scores. Future studies analyzing samples from progressive disease stages are needed to validate these results and understand the role of bacteria in periodontal disease development.
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Affiliation(s)
- Patrícia M Oba
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207 West Gregory Drive, 162 Animal Sciences Laboratory, Urbana, IL, 61801, USA
| | - Meredith Q Carroll
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207 West Gregory Drive, 162 Animal Sciences Laboratory, Urbana, IL, 61801, USA
| | - Celeste Alexander
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Helen Valentine
- Division of Animal Resources, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Amy J Somrak
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, 61801, USA
| | - Stephanie C J Keating
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, 61801, USA
| | - Adrianna M Sage
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin - Madison, 2015 Linden Dr, Madison, WI, 53706, USA
| | - Kelly S Swanson
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207 West Gregory Drive, 162 Animal Sciences Laboratory, Urbana, IL, 61801, USA. .,Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
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15
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Velickovic M, Arsenijevic A, Acovic A, Arsenijevic D, Milovanovic J, Dimitrijevic J, Todorovic Z, Milovanovic M, Kanjevac T, Arsenijevic N. Galectin-3, Possible Role in Pathogenesis of Periodontal Diseases and Potential Therapeutic Target. Front Pharmacol 2021; 12:638258. [PMID: 33815121 PMCID: PMC8017193 DOI: 10.3389/fphar.2021.638258] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 02/11/2021] [Indexed: 12/11/2022] Open
Abstract
Periodontal diseases are chronic inflammatory diseases that occur due to the imbalance between microbial communities in the oral cavity and the immune response of the host that lead to destruction of tooth supporting structures and finally to alveolar bone loss. Galectin-3 is a β-galactoside-binding lectin with important roles in numerous biological processes. By direct binding to microbes and modulation of their clearence, Galectin-3 can affect the composition of microbial community in the oral cavity. Galectin-3 also modulates the function of many immune cells in the gingiva and gingival sulcus and thus can affect immune homeostasis. Few clinical studies demonstrated increased expression of Galectin-3 in different forms of periodontal diseases. Therefore, the objective of this mini review is to discuss the possible effects of Galectin-3 on the process of immune homeostasis and the balance between oral microbial community and host response and to provide insights into the potential therapeutic targeting of Gal-3 in periodontal disease.
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Affiliation(s)
- Milica Velickovic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Aleksandar Arsenijevic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Aleksandar Acovic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Dragana Arsenijevic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Jelena Milovanovic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia.,Department of Histology and Embriology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Jelena Dimitrijevic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Zeljko Todorovic
- Department of Internal Medicine, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Marija Milovanovic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Tatjana Kanjevac
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Nebojsa Arsenijevic
- Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
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16
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Feres M, Retamal-Valdes B, Gonçalves C, Cristina Figueiredo L, Teles F. Did Omics change periodontal therapy? Periodontol 2000 2020; 85:182-209. [PMID: 33226695 DOI: 10.1111/prd.12358] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The starting point for defining effective treatment protocols is a clear understanding of the etiology and pathogenesis of a condition. In periodontal diseases, this understanding has been hindered by a number of factors, such as the difficulty in differentiating primary pathogens from nonpathogens in complex biofilm structures. The introduction of DNA sequencing technologies, including taxonomic and functional analyses, has allowed the oral microbiome to be investigated in much greater breadth and depth. This article aims to compile the results of studies, using next-generation sequencing techniques to evaluate the periodontal microbiome, in an attempt to determine how far the knowledge provided by these studies has brought us in terms of influencing the way we treat periodontitis. The taxonomic data provided, to date, by published association and elimination studies using next-generation sequencing confirm previous knowledge on the role of classic periodontal pathogens in the pathobiology of disease and include new species/genera. Conversely, species and genera already considered as host-compatible and others less explored were associated with periodontal health as their levels were elevated in healthy individuals and increased after therapy. Functional and transcriptomic analyses also demonstrated that periodontal biofilms are taxonomically diverse, functionally congruent, and highly cooperative. Very few interventional studies to date have examined the effects of treatment on the periodontal microbiome, and such studies are heterogeneous in terms of design, sample size, sampling method, treatment provided, and duration of follow-up. Hence, it is still difficult to draw meaningful conclusions from them. Thus, although OMICS knowledge has not yet changed the way we treat patients in daily practice, the information provided by these studies opens new avenues for future research in this field. As new pathogens and beneficial species become identified, future randomized clinical trials could monitor these species/genera more comprehensively. In addition, the metatranscriptomic data, although still embryonic, suggest that the interplay between the host and the oral microbiome may be our best opportunity to implement personalized periodontal treatments. Therapeutic schemes targeting particular bacterial protein products in subjects with specific genetic profiles, for example, may be the futuristic view of enhanced periodontal therapy.
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Affiliation(s)
- Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | - Belén Retamal-Valdes
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | - Cristiane Gonçalves
- Department of Periodontology, Estácio de Sá University, Rio de Janeiro, Brazil
| | | | - Flavia Teles
- Center for Innovation & Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, USA
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17
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Cytokine profiles of healthy and diseased sites in individuals with periodontitis. Arch Oral Biol 2020; 120:104957. [PMID: 33129128 DOI: 10.1016/j.archoralbio.2020.104957] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/16/2020] [Accepted: 10/18/2020] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The aims of this study were: 1) to compare the levels of cytokines between healthy and diseased sites, in patients with untreated periodontitis; 2) to correlate cytokine levels with each other and with key periodontal pathogens, in healthy and diseased sites. METHODS Paired gingival crevicular fluid (GCF) samples were obtained from two healthy (probing depth (PD) and clinical attachment level (CAL) ≤3 mm without bleeding) and two diseased sites (PD and CAL ≥5 mm with bleeding on probing [BoP]) of patients with generalized stage III/IV grade B/C periodontitis. GCF levels of eighteen cytokines and subgingival levels of seven periodontal pathogens were assessed by multiplex immunoassay and qPCR, respectively. RESULTS A total of 112 subjects and 448 GCF samples were analyzed. The GCF levels of GM-CSF, IL-17, IL-1β, IL-2, IL-21, IL-23 and TGF-β were significantly higher in the diseased than in the healthy sites (p < 0.05). Levels of IL-8 and MIP-1α were significantly higher in the healthy than in the diseased sites (p < 0.05). In the healthy sites, IL-8 and MIP-1α formed an independent cluster of cytokines and, MIP-1α positively correlated with Porphyromonas gingivalis (p < 0.05). In deep sites, smoking negatively associated with GM-CSF, IL-10, IL-17, IL-23, IL-5, IL-6, IL-7, IL-8 and MIP-1α levels (p < 0.05). CONCLUSIONS Diseased sites exhibited increased levels of T helper 17-related cytokines and TGF-β while healthy sites presented increased levels of the chemokines, IL-8 and MIP-1α. Patients with periodontitis may not only have inflammation in diseased deep sites, but also present significant hidden subclinical inflammation in their shallow clinically healthy sites.
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18
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Amado PPP, Kawamoto D, Albuquerque-Souza E, Franco DC, Saraiva L, Casarin RCV, Horliana ACRT, Mayer MPA. Oral and Fecal Microbiome in Molar-Incisor Pattern Periodontitis. Front Cell Infect Microbiol 2020; 10:583761. [PMID: 33117737 PMCID: PMC7578221 DOI: 10.3389/fcimb.2020.583761] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/09/2020] [Indexed: 12/16/2022] Open
Abstract
In order to improve our understanding on the microbial complexity associated with Grade C/molar-incisor pattern periodontitis (GC/MIP), we surveyed the oral and fecal microbiomes of GC/MIP and compared to non-affected individuals (Control). Seven Afro-descendants with GC/MIP and seven age/race/gender-matched controls were evaluated. Biofilms from supra/subgingival sites (OB) and feces were collected and submitted to 16S rRNA sequencing. Aggregatibacter actinomycetemcomitans (Aa) JP2 clone genotyping and salivary nitrite levels were determined. Supragingival biofilm of GC/MIP presented greater abundance of opportunistic bacteria. Selenomonas was increased in subgingival healthy sites of GC/MIP compared to Control. Synergistetes and Spirochaetae were more abundant whereas Actinobacteria was reduced in OB of GC/MIP compared to controls. Aa abundance was 50 times higher in periodontal sites with PD≥ 4 mm of GC/MIP than in controls. GC/MIP oral microbiome was characterized by a reduction in commensals such as Kingella, Granulicatella, Haemophilus, Bergeyella, and Streptococcus and enrichment in periodontopathogens, especially Aa and sulfate reducing Deltaproteobacteria. The oral microbiome of the Aa JP2-like+ patient was phylogenetically distant from other GC/MIP individuals. GC/MIP presented a higher abundance of sulfidogenic bacteria in the feces, such as Desulfovibrio fairfieldensis, Erysipelothrix tonsillarum, and Peptostreptococcus anaerobius than controls. These preliminary data show that the dysbiosis of the microbiome in Afro-descendants with GC/MIP was not restricted to affected sites, but was also observed in supragingival and subgingival healthy sites, as well as in the feces. The understanding on differences of the microbiome between healthy and GC/MIP patients will help in developing strategies to improve and monitor periodontal treatment.
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Affiliation(s)
- Pâmela Pontes Penas Amado
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Dione Kawamoto
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Emmanuel Albuquerque-Souza
- Division of Periodontology, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Diego Castillo Franco
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, São Paulo, Brazil.,Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Kraków, Poland
| | - Luciana Saraiva
- Division of Periodontology, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Renato Corrêa Viana Casarin
- Department of Prosthodontics and Periodontics, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil
| | | | - Marcia Pinto Alves Mayer
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.,Division of Periodontology, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
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19
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Velsko IM, Harrison P, Chalmers N, Barb J, Huang H, Aukhil I, Shaddox L. Grade C molar-incisor pattern periodontitis subgingival microbial profile before and after treatment. J Oral Microbiol 2020; 12:1814674. [PMID: 33062199 PMCID: PMC7534306 DOI: 10.1080/20002297.2020.1814674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Aim: This study evaluated the influence of periodontal therapy on the microbiological profile of individuals with Grade C Molar-Incisor Pattern Periodontitis (C/MIP). Methods: Fifty-three African-American participants between the ages of 5–25, diagnosed with C/MIP were included. Patients underwent full mouth mechanical debridement with systemic antibiotics (metronidazole 250 mg + amoxicillin 500 mg, tid, 7 days). Subgingival samples were collected from a diseased and a healthy site from each individual prior to treatment and at 3, 6, 12, 18 and 24 months after therapy from the same sites. Samples were subjected to a 16S rRNA gene based-microarray. Results: Treatment was effective in reducing the main clinical parameters of disease. Aggregatibacter actinomycetemcomitans (A.a.) was the strongest species associated with diseased sites. Other species associated with diseased sites were Treponema lecithinolyticum and Tannerella forsythia. Species associated with healthy sites were Rothia dentocariosa/mucilaginosa, Eubacterium yurii, Parvimonas micra, Veillonella spp., Selenomonas spp., and Streptococcus spp. Overall, treatment was effective in strongly reducing A.a. and other key pathogens, as well as increasing health-associated species. These changes were maintained for at least 6 months. Conclusions:Treatment reduced putative disease-associated species, particularly A.a., and shifted the microbial profile to more closely resemble a healthy-site profile. (Clinicaltrials.gov registration #NCT01330719).
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Affiliation(s)
- Irina M Velsko
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Peter Harrison
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA.,Department of Periodontology, Trinity College, Dublin, Ireland
| | | | - Jennifer Barb
- Clinical Center Nursing Department, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Hong Huang
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA
| | - Ikramuddin Aukhil
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA
| | - Luciana Shaddox
- Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA.,Center for Oral Health Research, University of Kentucky College of Dentistry, Lexington, KY, USA
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Montenegro SCL, Retamal-Valdes B, Bueno-Silva B, Duarte PM, Faveri M, Figueiredo LC, Feres M. Do patients with aggressive and chronic periodontitis exhibit specific differences in the subgingival microbial composition? A systematic review. J Periodontol 2020; 91:1503-1520. [PMID: 32233092 DOI: 10.1002/jper.19-0586] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/15/2020] [Accepted: 02/27/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND The 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions grouped the diseases previously recognized as chronic (CP) or aggressive (AgP) periodontitis under a single category named periodontitis. The rationale for this decision was the lack of specific patterns of immune-inflammatory response or microbial profiles associated with CP or AgP. However, no previous studies have compiled the results of all studies comparing subgingival microbial data between these clinical conditions. Thus, this systematic review aimed to answer the following focused question: "Do patients with AgP periodontitis present differences in the subgingival microbiota when compared with patients with CP?" METHODS A systematic review was conducted according to the PRISMA statement. The MEDLINE, EMBASE, and Cochrane databases were searched up to June 2019 for studies of any design (except case reports, case series, and reviews) comparing subgingival microbial data from patients with CP and AgP. RESULTS A total of 488 articles were identified and 56 were included. Thirteen studies found Aggregatibacter actinomycetemcomitans elevated in AgP in comparison with CP, while Fusobacterium nucleatum, Parvimonas micra, and Campylobacter rectus were elevated in AgP in a few studies. None of these species were elevated in CP. However, the number of studies not showing statistically significant differences between CP and AgP was always higher than that of studies showing differences. CONCLUSION These results suggested an association of A. actinomycetemcomitans with AgP, but neither this species nor the other species studied to date were unique to or could differentiate between CP and AgP (PROSPERO #CRD42016039385).
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Affiliation(s)
| | - Belen Retamal-Valdes
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Bruno Bueno-Silva
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Poliana Mendes Duarte
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil.,Department of Periodontology, School of Advanced Dental Sciences, College of Dentistry, University of Florida, Gainesville, FL, USA
| | - Marcelo Faveri
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | | | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
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JP2 Genotype of Aggregatibacter actinomycetemcomitans in Caucasian Patients: A Presentation of Two Cases. Pathogens 2020; 9:pathogens9030178. [PMID: 32121596 PMCID: PMC7157654 DOI: 10.3390/pathogens9030178] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/25/2020] [Accepted: 02/25/2020] [Indexed: 12/31/2022] Open
Abstract
Aggregatibacter actinomycetemcomitans is a key pathogen that has been associated with periodontal disease. Its most important virulence factor is a leukotoxin capable of inactivating immune cells. The JP2 genotype of Aggregatibacter actinomycetemcomitans shows enhanced leukotoxic activity and is mostly present in individuals of North and West African origin with severe periodontitis. In this paper, two cases of Caucasians diagnosed with the JP2 genotype are presented. A 50-year-old female patient had three approximal sites with ≥ 6 mm clinical attachment loss (CAL) and eight sites with probing depth (PD) ≥ 5 mm. Microbiological diagnostics revealed A. actinomycetemcomitans JP2 genotype, but not Porphyromonas gingivalis. This JP2 genotype was highly leukotoxic to monocytic cells. The second case was a 55-year-old female patient with CAL of > 5 mm at all molars and PD of up to 12 mm. A. actinomycetemcomitans JP2 was identified, but not P. gingivalis. Her husband originated from North-Africa. In him, no A. actinomycetemcomitans was detected, but their 17-year-old daughter was diagnosed with periodontitis and was found to be positive for the JP2 genotype. Both patients were successfully treated with adjunctive antibiotics and the JP2 genotype was eliminated. In summary, here, the microbiological diagnosis was key for the treatment with adjunctive antibiotics.
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Luthfi M, Yuliati, Oki A, Sosiawan A, Cida B. Effectiveness of okra fruit (Abelmoschus esculentus) extract against Aggregatibacter actinomycetemcomitans (Aa) as a bacterium that causes aggressive periodontitis. J Int Oral Health 2020. [DOI: 10.4103/jioh.jioh_294_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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23
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Krueger E, Brown AC. Inhibition of bacterial toxin recognition of membrane components as an anti-virulence strategy. J Biol Eng 2019; 13:4. [PMID: 30820243 PMCID: PMC6380060 DOI: 10.1186/s13036-018-0138-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 12/27/2018] [Indexed: 12/21/2022] Open
Abstract
Over recent years, the development of new antibiotics has not kept pace with the rate at which bacteria develop resistance to these drugs. For this reason, many research groups have begun to design and study alternative therapeutics, including molecules to specifically inhibit the virulence of pathogenic bacteria. Because many of these pathogenic bacteria release protein toxins, which cause or exacerbate disease, inhibition of the activity of bacterial toxins is a promising anti-virulence strategy. In this review, we describe several approaches to inhibit the initial interactions of bacterial toxins with host cell membrane components. The mechanisms by which toxins interact with the host cell membrane components have been well-studied over the years, leading to the identification of therapeutic targets, which have been exploited in the work described here. We review efforts to inhibit binding to protein receptors and essential membrane lipid components, complex assembly, and pore formation. Although none of these molecules have yet been demonstrated in clinical trials, the in vitro and in vivo results presented here demonstrate their promise as novel alternatives and/or complements to traditional antibiotics.
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Affiliation(s)
- Eric Krueger
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015 USA
| | - Angela C. Brown
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015 USA
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24
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Del Castillo E, Meier R, Chung M, Koestler DC, Chen T, Paster BJ, Charpentier KP, Kelsey KT, Izard J, Michaud DS. The Microbiomes of Pancreatic and Duodenum Tissue Overlap and Are Highly Subject Specific but Differ between Pancreatic Cancer and Noncancer Subjects. Cancer Epidemiol Biomarkers Prev 2019; 28:370-383. [PMID: 30373903 PMCID: PMC6363867 DOI: 10.1158/1055-9965.epi-18-0542] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 09/06/2018] [Accepted: 10/26/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND In mice, bacteria from the mouth can translocate to the pancreas and impact pancreatic cancer progression. In humans, oral bacteria associated with periodontal disease have been linked to pancreatic cancer risk. It is not known if DNA bacterial profiles in the pancreas and duodenum are similar within individuals. METHODS Tissue samples were obtained from 50 subjects with pancreatic cancer or other conditions requiring foregut surgery at the Rhode Island Hospital (RIH), and from 34 organs obtained from the National Disease Research Interchange. 16S rRNA gene sequencing was performed on 189 tissue samples (pancreatic duct, duodenum, pancreas), 57 swabs (bile duct, jejunum, stomach), and 12 stool samples. RESULTS Pancreatic tissue samples from both sources (RIH and National Disease Research Interchange) had diverse bacterial DNA, including taxa typically identified in the oral cavity. Bacterial DNA across different sites in the pancreas and duodenum were highly subject specific in both cancer and noncancer subjects. Presence of genus Lactobacillus was significantly higher in noncancer subjects compared with cancer subjects and the relative abundance of Fusobacterium spp., previously associated with colorectal cancer, was higher in cancer subjects compared with noncancer subjects. CONCLUSIONS Bacterial DNA profiles in the pancreas were similar to those in the duodenum tissue of the same subjects, regardless of disease state, suggesting that bacteria may be migrating from the gut into the pancreas. Whether bacteria play a causal role in human pancreatic cancer needs to be further examined. IMPACT Identifying bacterial taxa that differ in cancer patients can provide new leads on etiologically relevant bacteria.
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Affiliation(s)
- Erika Del Castillo
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, Massachusetts
- The Forsyth Institute, Cambridge, Massachusetts
| | - Richard Meier
- Department of Biostatistics, The University of Kansas Medical Center, Kansas City, Kansas
| | - Mei Chung
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, Massachusetts
| | - Devin C Koestler
- Department of Biostatistics, The University of Kansas Medical Center, Kansas City, Kansas
- University of Kansas Cancer Center, The University of Kansas Medical Center, Kansas City, Kansas
| | - Tsute Chen
- The Forsyth Institute, Cambridge, Massachusetts
| | - Bruce J Paster
- The Forsyth Institute, Cambridge, Massachusetts
- Harvard School of Dental Medicine, Boston, Massachusetts
| | | | - Karl T Kelsey
- Department of Epidemiology and Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island
| | - Jacques Izard
- Food Science and Technology Department, University of Nebraska, Lincoln, Nebraska
- School of Biological Sciences, University of Nebraska, Lincoln, Nebraska
| | - Dominique S Michaud
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, Massachusetts.
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25
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Comparison of the oral microbiome of patients with generalized aggressive periodontitis and periodontitis-free subjects. Arch Oral Biol 2019; 99:169-176. [PMID: 30710838 DOI: 10.1016/j.archoralbio.2019.01.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/24/2019] [Accepted: 01/25/2019] [Indexed: 01/10/2023]
Abstract
OBJECTIVE The primary objectives of the study were to assess differences in complex subgingival bacterial composition between periodontitis-free persons and patients with generalized aggressive periodontitis (gAgP). BACKGROUND The composition of the oral microbiota plays an important role for both oral and systemic diseases. However, the complex nature of the oral microbiome and its homeostasis is still poorly understood. MATERIAL AND METHODS We compared the microbiome of 13 periodontitis-free persons to 13 patients with gAgP. The 16S rRNA genes were amplified, targeting the V3/V4 region using the MiSeq platform. RESULTS In total, 1713 different bacterial species were mapped according to the Greengenes database. Using the Shannon index, no significant differences in alpha diversity were found between the two study groups. In principal component and linear discriminant analyses, disease-specific differences in beta diversity of the microbiome composition were evaluated. Bacteroidetes, Spirochaetes, and Synergistetes were more abundant in gAgP whereas Proteobacteria, Firmicutes, and Actinobacteria were associated with a healthy periodontium. At the bacterial species level, we showed that Porphyromonas gingivalis is the strongest indicator of gAgP. Treponema denticola and Tanerella forsythia of the "red complex" as well as Filifactor alocis were among the ten best biomarkers for gAgP. CONCLUSIONS These results broaden our knowledge of disease-specific differences in the microbial community associated with generalized AgP. A more complex view of the composition of the oral microbiome describes the etiology of generalized AgP in more detail. These results could help to individually adapt periodontal therapy in these patients.
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26
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Sete MRC, Carlos JC, Lira-Junior R, Boström EA, Sztajnbok FR, Figueredo CM. Clinical, immunological and microbial gingival profile of juvenile systemic lupus erythematosus patients. Lupus 2018; 28:189-198. [PMID: 30563424 DOI: 10.1177/0961203318819134] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Periodontal disease has been associated with rheumatic diseases; however, few studies have evaluated the association with systemic lupus erythematosus (SLE), and its impact on the local inflammatory and microbial profiles. Therefore, this study evaluated the levels of several cytokines in gingival crevicular fluid (GCF) and serum from juvenile SLE (jSLE) patients with gingival inflammation, compared with controls. In addition, we assessed their subgingival microbial profile. Thirty jSLE patients and 29 systemically healthy individuals were recruited. Participants were rheumatologically and periodontally examined, and GCF, serum and intrasulcular biofilm were collected. Cytokines were analysed by bead-based multiplex assays and the bacterial profile by checkerboard DNA-DNA hybridization. jSLE patients presented higher percentages of dental plaque and bleeding than controls, as well as increased mean probing depth and attachment loss. After adjustment for multiple comparisons, GCF levels of interleukin (IL)-1β, IL-8, granulocyte colony-stimulating factor (G-CSF), interferon-γ and monocyte chemoattractant protein-1 were significantly higher, whereas the levels of granulocyte-macrophage colony-stimulating factor were significantly lower in jSLE patients. In serum, G-CSF levels tended to be higher in jSLE patients (adjusted p-value = 0.06). Intrasulcular counts of Aggregatibacter actinomycetemcomitans were significantly higher in jSLE patients as compared with controls. We conclude that patients with jSLE present a worse periodontal condition associated with altered levels of pro-inflammatory cytokines in GCF and increased counts of A. actinomycetemcomitans in the intrasulcular biofilm.
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Affiliation(s)
- M R C Sete
- 1 Department of Periodontology, Faculty of Odontology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - J C Carlos
- 1 Department of Periodontology, Faculty of Odontology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - R Lira-Junior
- 2 Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - E A Boström
- 2 Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - F R Sztajnbok
- 3 Unit of Rheumatology, Adolescent Health Studies Center, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - C M Figueredo
- 1 Department of Periodontology, Faculty of Odontology, Rio de Janeiro State University, Rio de Janeiro, Brazil.,4 Division of Periodontology, School of Dentistry and Oral Health, Griffith University, Queensland, Australia
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Krueger E, Hayes S, Chang EH, Yutuc S, Brown AC. Receptor-Based Peptides for Inhibition of Leukotoxin Activity. ACS Infect Dis 2018; 4:1073-1081. [PMID: 29742342 DOI: 10.1021/acsinfecdis.7b00230] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The Gram-negative bacterium Aggregatibacter actinomycetemcomitans, commonly associated with localized aggressive periodontitis (LAP), secretes an RTX (repeats-in-toxin) protein leukotoxin (LtxA) that targets human white blood cells, an interaction that is driven by its recognition of the lymphocyte function-associated antigen-1 (LFA-1) integrin. In this study, we report on the inhibition of LtxA-LFA-1 binding as an antivirulence strategy to inhibit LtxA-mediated cytotoxicity. Specifically, we designed and synthesized peptides corresponding to the reported LtxA binding domain on LFA-1 and characterized their capability to inhibit LtxA binding to LFA-1 and subsequent cytotoxic activity in human immune cells. We found that several of these peptides, corresponding to sequential β-strands in the LtxA-binding domain of LFA-1, inhibit LtxA activity, demonstrating the effectiveness of this approach. Further investigations into the mechanism by which these peptides inhibit LtxA binding to LFA-1 reveal a correlation between toxin-peptide affinity and LtxA-mediated cytotoxicity, leading to a diminished association between LtxA and LFA-1 on the cell membrane. Our results demonstrate the possibility of using target-based peptides to inhibit LtxA activity, and we expect that a similar approach could be used to hinder the activity of other RTX toxins.
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Affiliation(s)
- Eric Krueger
- Department of Chemical and Biomolecular Engineering, Lehigh University, Iacocca Hall, Room B323, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - Shannon Hayes
- Department of Chemical and Biomolecular Engineering, Lehigh University, Iacocca Hall, Room B323, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - En Hyung Chang
- Department of Chemical and Biomolecular Engineering, Lehigh University, Iacocca Hall, Room B323, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - Shailagne Yutuc
- Department of Chemical and Biomolecular Engineering, Lehigh University, Iacocca Hall, Room B323, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - Angela C. Brown
- Department of Chemical and Biomolecular Engineering, Lehigh University, Iacocca Hall, Room B323, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
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Fine DH, Patil AG, Loos BG. Classification and diagnosis of aggressive periodontitis. J Periodontol 2018; 89 Suppl 1:S103-S119. [DOI: 10.1002/jper.16-0712] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 10/11/2017] [Accepted: 10/21/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Daniel H. Fine
- Department of Oral Biology; Rutgers School of Dental Medicine; Rutgers University - Newark; NJ USA
| | - Amey G. Patil
- Department of Oral Biology; Rutgers School of Dental Medicine; Rutgers University - Newark; NJ USA
| | - Bruno G. Loos
- Department of Periodontology; Academic Center of Dentistry Amsterdam (ACTA); University of Amsterdam and Vrije Universiteit; Amsterdam The Netherlands
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29
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Fine DH, Patil AG, Loos BG. Classification and diagnosis of aggressive periodontitis. J Clin Periodontol 2018; 45 Suppl 20:S95-S111. [DOI: 10.1111/jcpe.12942] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 10/11/2017] [Accepted: 10/21/2017] [Indexed: 12/30/2022]
Affiliation(s)
- Daniel H. Fine
- Department of Oral Biology; Rutgers School of Dental Medicine; Rutgers University - Newark; NJ USA
| | - Amey G. Patil
- Department of Oral Biology; Rutgers School of Dental Medicine; Rutgers University - Newark; NJ USA
| | - Bruno G. Loos
- Department of Periodontology; Academic Center of Dentistry Amsterdam (ACTA); University of Amsterdam and Vrije Universiteit; Amsterdam The Netherlands
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30
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Feres M, Louzoun Y, Haber S, Faveri M, Figueiredo LC, Levin L. Support vector machine-based differentiation between aggressive and chronic periodontitis using microbial profiles. Int Dent J 2018; 68:39-46. [DOI: 10.1111/idj.12326] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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31
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Mass E, Hershkovitz F, Zilberman U. Localised aggressive periodontitis in a 3-year-old-boy. Eur Arch Paediatr Dent 2018; 19:61-63. [PMID: 29332208 DOI: 10.1007/s40368-017-0321-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 12/06/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Localised aggressive periodontitis (LAgP), characterised by rapid attachment and bone loss, which may occur in children and adolescents, without clinical evidence of systemic disease. CASE REPORT Three-year-old boy was referred with excessive mobility of 83 and exfoliation of 73. Clinical examination revealed acceptable oral hygiene. Blood tests were performed to evaluate PMNs activity and the parents were advised to apply 0.2% chlorhexidine twice a day. One month later 83 was still excessively mobile. Blood tests were normal. TREATMENT A full mouth scaling and curettage were performed under general anaesthesia. Since 83 had been spontaneously exfoliated one day earlier, a biopsy was taken from its socket. The biopsy examination revealed granulation tissue with actinomyces colonies. A course of amoxicillin 250 mg three times a day for 7 days was prescribed. Cultures from periodontal pockets of the child's family members were found negative to Aggregatibacter actinomycetem comitans (Aa). FOLLOW-UP Examination 3 months later, no tooth mobility was observed and the cultures from the periodontal pockets were negative to Aa. Thereafter, the child was periodically reviewed every 3 months for 26 months with no signs of periodontal disease. CONCLUSION Amoxicillin combined with curettage around the involved teeth may be effective in LAgP treatment.
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Affiliation(s)
- E Mass
- Paediatric Dental Unit, Barzilai Medical University Center, 2nd Hahistadrut st., 7830604, Ashkelon, Israel.
| | - F Hershkovitz
- Paediatric Dental Unit, Barzilai Medical University Center, 2nd Hahistadrut st., 7830604, Ashkelon, Israel
| | - U Zilberman
- Paediatric Dental Unit, Barzilai Medical University Center, 2nd Hahistadrut st., 7830604, Ashkelon, Israel
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32
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Feres M, Teles F, Teles R, Figueiredo LC, Faveri M. The subgingival periodontal microbiota of the aging mouth. Periodontol 2000 2018; 72:30-53. [PMID: 27501490 DOI: 10.1111/prd.12136] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2015] [Indexed: 12/18/2022]
Abstract
Different mechanisms have been hypothesized to explain the increase in prevalence and severity of periodontitis in older adults, including shifts in the periodontal microbiota. However, the actual impact of aging on the composition of subgingival biofilms remains unclear. In the present article, we provide an overview of the composition of the subgingival biofilm in older adults and the potential effects of age on the oral microbiome. In particular, this review covers the following topics: (i) the oral microbiota of an aging mouth; (ii) the effects of age and time on the human oral microbiome; (iii) the potential impact of inflammaging and immunosenescence in the host-oral microbiota interactions; and (iv) the relationship of the aging oral microbiota and Alzheimer's disease. Finally, we present analyses of data compiled from large clinical studies that evaluated the subgingival microbiota of periodontally healthy subjects and patients with periodontitis from a wide age spectrum (20-83 years of age).
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Pérez-Chaparro PJ, McCulloch JA, Mamizuka EM, Moraes ADCL, Faveri M, Figueiredo LC, Duarte PM, Feres M. Do different probing depths exhibit striking differences in microbial profiles? J Clin Periodontol 2017; 45:26-37. [PMID: 28871594 DOI: 10.1111/jcpe.12811] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2017] [Indexed: 12/31/2022]
Abstract
AIM To perform a thorough characterization of the subgingival microbiota of shallow, moderate and deep sites in subjects with chronic periodontitis (ChP). MATERIAL AND METHODS Subgingival samples were collected from subjects with ChP (n = 3/category of probing depth: ≤3, 4-6 and ≥7 mm) and periodontal health (PH). Individual samples were submitted to 16S rDNA high- throughput sequencing and the analysis was made using mothur and R packages. RESULTS Nine subjects with ChP and seven with PH were included and 101 samples were evaluated. Thirteen phyla, 118 genera and 211 OTUs were detected. Taxa from Chloroflexi and Spirochaetes phyla were associated with initial stages of disease. Fretibacterium, Eubacterium[XI][G-6], Desulfobulbus, Peptostreptococcaceae[XI][G-1] and [G-3], Bacteroidetes[G-3], Bacteroidaceae[G-1] genera and Filifactor alocis, Fretibacterium fastidiosum, Johnsonella spHOT166, Peptostreptococcaceae[XIII][G-1]HOT113, Porphyromonas endodontalis and Treponema sp. HOT258, which are not conventionally associated with disease, increased with the deepening of the pockets and/or were elevated in ChP; while Streptococcus, Corynebacterium and Bergeyella genera were associated with PH (p < .05). CONCLUSION Striking differences were observed between the microbiota of shallow and moderate/deep sites, but not between moderate and deep sites in ChP subjects. Differences between shallow sites in PH and ChP were also observed. The characterized microbiota included known oral microorganisms and newly identified periodontal taxa, some of them not-yet-cultured.
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Affiliation(s)
| | - John Anthony McCulloch
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil.,Trinchieri Lab, Cancer and Inflammation Program, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Elsa Masae Mamizuka
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Aline da Costa Lima Moraes
- Department of Plant Biology, Biology Institute, State University of Campinas, Campinas, São Paulo, Brazil
| | - Marcelo Faveri
- Dental Research Division, Department of Periodontology, Guarulhos University, Guarulhos, Brazil
| | | | - Poliana Mendes Duarte
- Dental Research Division, Department of Periodontology, Guarulhos University, Guarulhos, Brazil
| | - Magda Feres
- Dental Research Division, Department of Periodontology, Guarulhos University, Guarulhos, Brazil
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Pan S, Liu Y, Si Y, Zhang Q, Wang L, Liu J, Wang C, Xiao S. Prevalence of fimA genotypes of Porphyromonas gingivalis in adolescent orthodontic patients. PLoS One 2017; 12:e0188420. [PMID: 29176857 PMCID: PMC5703466 DOI: 10.1371/journal.pone.0188420] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 11/07/2017] [Indexed: 11/24/2022] Open
Abstract
Background The placement of fixed orthodontic appliances may alter the composition of oral microbiota and has the potential risk of periodontal complication. Porphyromonas gingivalis fimbriae play a critical role in colonization of P. gingivalis in subgingival regions. In this study, we investigated the association between the prevalence of P. gingivalis-specific fimA genotypes and periodontal health status in adolescent orthodontic patients, to identify the pathogencity of P. gingivalis during orthodontic therapy. Methods Sixty-one adolescent orthodontic patients were enrolled in the case group, while the control group consisted of 56 periodontally healthy adolescents. At baseline (T0), clinical parameter (gingival index) was tested, and subgingival plaque samples were obtained from the lower incisors. The incidences of P. gingivalis and fimA genotypes were detected by polymerase chain reaction. All parameters were reassessed after 1 month (T1), 2 months (T2), 3 months (T3), and 6 months (T4) in the case group and then compared with those of the controls. Results Both microbiological and clinical parameters from orthodontic patients started to increase after placement of fixed appliances. Maximum values were reached at 3 months after placement and followed by their decreases at six months. However, the microbiological and clinical parameters in the case group were significantly higher than those of the control group. The GI of fimA II, IV-positive samples was significantly higher than that of negative samples. Conclusion P. gingivalis carrying fimA II or IV was closely related to orthodontic gingivitis. In addition, proper oral hygiene control could lead to little increase in dental plaque accumulation, and exert a beneficial effect to periodontal tissues.
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Affiliation(s)
- Shuang Pan
- Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
- Department of Orthodontics, Jinan Stomatological Hospital, Jinan, China
| | - Yi Liu
- Pediatric Research Institute, Qilu Children’s Hospital of Shandong University, Jinan, China
| | - Yi Si
- Department of Oral Medicine, Shandong Medical College, Jinan, China
| | - Qiang Zhang
- Department of Implantology, Jinan Stomatological Hospital, Jinan, China
| | - Lin Wang
- Department of Stomatology, the First Hospital of Jinan, Jinan, China
| | - Jianwei Liu
- Department of Orthodontics, Jinan Stomatological Hospital, Jinan, China
| | - Chunling Wang
- Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
- * E-mail: (CW); (SX)
| | - Shuiqing Xiao
- Department of Oral Medicine, Shandong Medical College, Jinan, China
- Department of Implantology, Jinan Stomatological Hospital, Jinan, China
- * E-mail: (CW); (SX)
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Elamin A, Ali RW, Bakken V. Putative periodontopathic bacteria and herpes viruses interactions in the subgingival plaque of patients with aggressive periodontitis and healthy controls. Clin Exp Dent Res 2017; 3:183-190. [PMID: 29744199 PMCID: PMC5839261 DOI: 10.1002/cre2.80] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 12/17/2022] Open
Abstract
The microbial profile of aggressive periodontitis patients is considered to be complex with variations among populations in different geographical areas. The aim of this study was to assess the presences of 4 putative periodontopathic bacteria (Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola) and 2 periodontal herpes viruses (Epstein-Barr virus type 1 [EBV-1] and human cytomegalovirus [HMCV]) in subgingival plaque of Sudanese subjects with aggressive periodontitis and healthy controls. The study group consisted of 34 subjects, 17 aggressive periodontitis patients and 17 periodontally healthy controls (14-19 years of age). Pooled subgingival plaque samples were collected and analyzed for detection of bacteria and viruses using loop-mediated isothermal amplification. Prevalence of subgingival A. actinomycetemcomitans, HCMV, and P. gingivalis were significantly higher among aggressive periodontitis patients than periodontally healthy controls. Coinfection with A. actinomycetemcomitans, HCMV, and/or EBV-1 was restricted to the cases. Increased risk of aggressive periodontitis was the highest when A. actinomycetemcomitans was detected together with EBV-1 (OD 49.0, 95% CI [2.5, 948.7], p = .01) and HCMV (OD 39.1, 95% CI [2.0, 754.6], p = .02). In Sudanese patients, A. actinomycetemcomitans and HCMV were the most associated test pathogens with aggressive periodontitis.
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Affiliation(s)
- Amal Elamin
- Department of Health Sciences, College of Natural and Health SciencesZayed UniversityDubaiUAE
- Department of Clinical ScienceUniversity of BergenBergenNorway
| | - Raouf Wahab Ali
- Department of PeriodontologyUniversity of Science and TechnologyOmdurmanSudan
| | - Vidar Bakken
- Department of Clinical ScienceUniversity of BergenBergenNorway
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Hashim N, Linden G, Winning L, Ibrahim M, Gismalla B, Lundy F, El Karim I. Putative periodontal pathogens in the subgingival plaque of Sudanese subjects with aggressive periodontitis. Arch Oral Biol 2017; 81:97-102. [DOI: 10.1016/j.archoralbio.2017.04.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/20/2017] [Accepted: 04/21/2017] [Indexed: 12/26/2022]
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Claesson R, Höglund-Åberg C, Haubek D, Johansson A. Age-related prevalence and characteristics of Aggregatibacter actinomycetemcomitans in periodontitis patients living in Sweden. J Oral Microbiol 2017; 9:1334504. [PMID: 28748039 PMCID: PMC5508378 DOI: 10.1080/20002297.2017.1334504] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 05/11/2017] [Indexed: 02/08/2023] Open
Abstract
Background: The presence of Aggregatibacter actinomycetemcomitans in patients with periodontitis has been extensively studied for decades. Objective: To study the prevalence of A. actinomycetemcomitans in younger and older periodontitis patients and to genetically characterize isolates of this bacterium. Design: Data from microbiological analyses of 3459 subgingival plaque samples collected from 1445 patients, 337 ‘younger’ patients (≤35 yrs) and 1108 ‘older’ patients (>35 yrs) during 15 years (2000–2014), has been summerized. Isolates of A. actinomycetemcomitans were serotyped, leukotoxin promoter typed (JP2 and non JP2) and arbitrarily primed PCR (AP-PCR) genotyped. The origin of the JP2 genotype detected in the study population was determined. Results: The prevalence of A. actinomycetemcomitans was higher among younger than older patients and samples from the younger patients contained higher proportions of the bacterium. Serotype b was more prevalent among younger patients and the majorty of these isolates was from the same AP-PCR genotype. The JP2 genotype was detected in 1.2% of the patients, and the majority of these carriers were of non-African origin. Conslusions: For presence and charcteristics of A. actinomycetemcomitans in clinical samples the age of the carriers were a discriminating factor. Additional, apparently non-African carriers of the JP2 genotype of A. actinomycetemcomitans were identified.
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Affiliation(s)
- Rolf Claesson
- Division of Oral Microbiology, Department of Odontology, Umeå University, Umeå, Sweden
| | - Carola Höglund-Åberg
- Division of Molecular Periodontology, Department of Odontology, Umeå University, Umeå, Sweden
| | - Dorte Haubek
- Section for Pediatric Dentistry, Department of Dentistry, Health, Aarhus UniversityAarhus, Denmark
| | - Anders Johansson
- Division of Molecular Periodontology, Department of Odontology, Umeå University, Umeå, Sweden
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Feres M, Figueiredo LC, Soares GMS, Faveri M. Systemic antibiotics in the treatment of periodontitis. Periodontol 2000 2017; 67:131-86. [PMID: 25494600 DOI: 10.1111/prd.12075] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2014] [Indexed: 12/12/2022]
Abstract
Despite the fact that several clinical studies have shown additional benefits when certain systemic antibiotics are used as adjuncts to periodontal treatment, clear guidelines for the use of these agents in the clinical practice are not yet available. Basic questions concerning the use of systemic antibiotics to treat periodontitis remain unanswered, such as: which drug(s) should be used; which patients would most benefit from treatment; which are the most effective protocols (i.e. doses and durations); and in which phase of the mechanical therapy should the drug(s) be administered? Although not all of those questions have been directly addressed by controlled randomized clinical trials, recent concepts related to the ecology of periodontal diseases, as well as the major advances in laboratory and clinical research methods that have occurred in the past decade, have significantly broadened our knowledge in this field. This article endeavored to provide a 'state of the art' overview on the use of systemic antibiotics in the treatment of periodontitis, based on the most recent literature on the topic as well as on a compilation of data from studies conducted at the Center of Clinical Trials at Guarulhos University (São Paulo, Brazil) from 2002 to 2012.
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Pan S, Liu Y, Zhang L, Li S, Zhang Y, Liu J, Wang C, Xiao S. Profiling of subgingival plaque biofilm microbiota in adolescents after completion of orthodontic therapy. PLoS One 2017; 12:e0171550. [PMID: 28158292 PMCID: PMC5291508 DOI: 10.1371/journal.pone.0171550] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 01/23/2017] [Indexed: 11/19/2022] Open
Abstract
Background Fixed orthodontic treatment is the most common method for malocclusion but has the potential risk of periodontal complication with unclear outcomes of whether microbiologic and clinical changes could be reversible in adolescents after orthodontic therapy. Methods Twenty adolescents with orthodontic treatment were enrolled in the study as the case group at end of the therapy, while 19 periodontally healthy adolescents were involved in the control group. At baseline (T0), clinical parameters including gingival index, probing depth and sulcus bleeding index were tested, and subgingival plaque samples were collected from the lower incisors. The counts of A. actinomycetemcomitans, P. gingivalis, P. intermedia, T. forsythia and total bacteria were determined by real-time PCR. All parameters were reassessed after 1 month (T1) and 3 months (T2) in the case group and compared with that of the controls. Results At baseline (T0), clinical parameters (including GI, PD, SBI) of the test sites in the case group were significantly higher than that of the control group (P<0.05 or P<0.01). At 3 months (T2), no differences were noticed in GI and SBI between two groups. The prevalence and counts of periodontopathogens tend to be normal (P>0.05), while PD and the amount of P.intermedia were still significantly higher compared with that of the control group (P<0.05 or P<0.01). Conclusion After removal of appliances, the periodontal changes induced by orthodontic therapy are only partially reversible at 3 months after removal.
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Affiliation(s)
- Shuang Pan
- Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
- Department of Orthodontics, Jinan Stomatological Hospital, Jinan, China
| | - Yi Liu
- Pediatric Research Institute, Qilu Children’s Hospital of Shandong University, Jinan, China
| | - Li Zhang
- Department of Orthodontics, Jinan Stomatological Hospital, Jinan, China
| | - Shuxiang Li
- Department of Stomatology, Hospital of Zhangqiu, Jinan, China
| | - Yujie Zhang
- Department of Orthodontics, Jinan Stomatological Hospital, Jinan, China
| | - Jianwei Liu
- Department of Orthodontics, Jinan Stomatological Hospital, Jinan, China
| | - Chunling Wang
- Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
- * E-mail: (CW); (SX)
| | - Shuiqing Xiao
- Department of Orthodontics, Jinan Stomatological Hospital, Jinan, China
- Department of Oral Medicine, Shandong Medical College, Jinan, China
- * E-mail: (CW); (SX)
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Mehrotra N, Reddy Palle A, Kumar Gedela R, Vasudevan S. Efficacy of Natural and Allopathic Antimicrobial Agents Incorporated onto Guided Tissue Regeneration Membrane Against Periodontal Pathogens: An in vitro Study. J Clin Diagn Res 2017; 11:ZC84-ZC87. [PMID: 28274052 DOI: 10.7860/jcdr/2017/23851.9227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/07/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Periodontal disease is one of the most prevalent afflictions worldwide. It is an infection of the periodontium as a result of subgingival colonization of the specific microbiota, leading to loss of attachment, which requires optimal care for regeneration to its pre-disease state. Guided Tissue Regeneration (GTR) is one of the successful treatment modalities in Periodontal Regenerative Therapy, but is vulnerable to bacterial colonization. The conflict between usage of classical antibiotics and plant origin antimicrobial agents has recently been in the limelight. AIM The aim of this study was to assess the in vitro antimicrobial activity of amoxicillin, metronidazole and green coffee extract loaded onto GTR membrane against periodonto-pathogens. MATERIALS AND METHODS Pure form of amoxicillin, metronidazole and green coffee extract were obtained. One percent concentration of each antimicrobial agent was prepared by appropriate dilution with distilled water. GTR membrane was cut into a size of 1x0.5 cm under sterile conditions and was coated with the antimicrobial agents respectively and with distilled water as the negative control. Antimicrobial activity was checked against Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans) and Porphyromonas gingivalis (P. gingivalis) using agar disc diffusion method. The statistical analysis was done using Kruskal Wallis ANOVA and Mann-Whitney U test. RESULTS One percent amoxicillin showed level of significance (p>0.05) against both A. actinomycetemcomitans and P. gingivalis. Green coffee extract showed no zone of inhibition against both the bacterial species. CONCLUSION Loading of commercially available antimicrobial agents onto GTR membrane can prevent its bacterial colonization leading to better treatment outcomes for periodontal regeneration.
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Affiliation(s)
- Neha Mehrotra
- Postgraduate Student, Department of Periodontics, Army College of Dental Sciences , Secunderabad, Telangana, India
| | - Ajay Reddy Palle
- Reader, Department of Periodontics, Army College of Dental Sciences , Secunderabad, Telangana, India
| | - Rajani Kumar Gedela
- Reader, Department of Periodontics, Army College of Dental Sciences , Secunderabad, Telangana, India
| | - Sanjay Vasudevan
- Professor and Head, Department of Periodontics, Army College of Dental Sciences , Secunderabad, Telangana, India
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Sampaio-Maia B, Caldas IM, Pereira ML, Pérez-Mongiovi D, Araujo R. The Oral Microbiome in Health and Its Implication in Oral and Systemic Diseases. ADVANCES IN APPLIED MICROBIOLOGY 2016; 97:171-210. [PMID: 27926431 DOI: 10.1016/bs.aambs.2016.08.002] [Citation(s) in RCA: 159] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The oral microbiome can alter the balance between health and disease, locally and systemically. Within the oral cavity, bacteria, archaea, fungi, protozoa, and viruses may all be found, each having a particular role, but strongly interacting with each other and with the host, in sickness or in health. A description on how colonization occurs and how the oral microbiome dynamically evolves throughout the host's life is given. In this chapter the authors also address oral and nonoral conditions in which oral microorganisms may play a role in the etiology and progression, presenting the up-to-date knowledge on oral dysbiosis as well as the known underlying pathophysiologic mechanisms involving oral microorganisms in each condition. In oral pathology, oral microorganisms are associated with several diseases, namely dental caries, periodontal diseases, endodontic infections, and also oral cancer. In systemic diseases, nonoral infections, adverse pregnancy outcomes, cardiovascular diseases, and diabetes are among the most prevalent pathologies linked with oral cavity microorganisms. The knowledge on how colonization occurs, how oral microbiome coevolves with the host, and how oral microorganisms interact with each other may be a key factor to understand diseases etiology and progression.
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Affiliation(s)
| | - I M Caldas
- Universidade do Porto, Portugal; Institute of Research and Advanced Training in Health Sciences and Technologies, University Institute of Health Sciences (IUCS), CESPU, CRL, Gandra, Portugal; Universidade de Coimbra, Portugal
| | | | - D Pérez-Mongiovi
- Institute of Research and Advanced Training in Health Sciences and Technologies, University Institute of Health Sciences (IUCS), CESPU, CRL, Gandra, Portugal
| | - R Araujo
- Universidade do Porto, Portugal; Flinders University, Adelaide, SA, Australia
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Lai PC, Schibler MR, Walters JD. Azithromycin enhances phagocytic killing of Aggregatibacter actinomycetemcomitans Y4 by human neutrophils. J Periodontol 2016; 86:155-61. [PMID: 25186779 DOI: 10.1902/jop.2014.140183] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Aggregatibacter actinomycetemcomitans resists killing by neutrophils and is inhibited by azithromycin (AZM) and amoxicillin (AMX). AZM actively concentrates inside host cells, whereas AMX enters by diffusion. The present study is conducted to determine whether AZM is more effective than AMX at enhancing phagocytic killing of A. actinomycetemcomitans by neutrophils. METHODS Killing assays were conducted in the presence of either 2 μg/mL AZM or 16 μg/mL AMX (equipotent against A. actinomycetemcomitans). Neutrophils were loaded by incubation with the appropriate antibiotic. Opsonized A. actinomycetemcomitans strain Y4 was incubated with the indicated antibiotic alone, with loaded neutrophils and antibiotic, or with control neutrophils (without antibiotic) at multiplicities of infection (MOIs) of 30 and 90 bacteria per neutrophil. RESULTS Neutrophil incubation with 2 μg/mL AZM yielded an intracellular concentration of 10 μg/mL. At an MOI of 30, neutrophils loaded with AZM failed to kill significantly more bacteria than control neutrophils during the 60- and 90-minute assay periods. At an MOI of 90, neutrophils loaded with AZM killed significantly more bacteria than either AZM alone or control neutrophils during 60- and 90-minute incubations (P < 0.05), and killed significantly more bacteria after 90 minutes than the sum of the killing produced by AZM alone or neutrophils alone. Neutrophils incubated with AMX under identical conditions also killed significantly more bacteria than either AMX alone or control neutrophils, but there was no evidence of synergism between AMX and neutrophils. CONCLUSIONS Neutrophils possess a concentrative transport system for AZM that may enhance killing of A. actinomycetemcomitans. Its effects are most pronounced when neutrophils are greatly outnumbered by bacteria.
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Affiliation(s)
- Pin-Chuang Lai
- Division of Periodontology, College of Dentistry, The Ohio State University Wexner Medical Center, Columbus, OH
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Corrêa JD, Saraiva AM, Queiroz-Junior CM, Madeira MFM, Duarte PM, Teixeira MM, Souza DG, da Silva TA. Arthritis-induced alveolar bone loss is associated with changes in the composition of oral microbiota. Anaerobe 2016; 39:91-6. [PMID: 26996070 DOI: 10.1016/j.anaerobe.2016.03.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/22/2016] [Accepted: 03/15/2016] [Indexed: 01/22/2023]
Abstract
Rheumatoid arthritis (RA) and periodontitis (PD) are chronic inflammatory disorders that cause bone loss. PD tends to be more prevalent and severe in RA patients. Previous experimental studies demonstrated that RA triggers alveolar bone loss similarly to PD. The aim of this study was to investigate if arthritis-induced alveolar bone loss is associated with modification in the oral microbiota. Checkerboard DNA-DNA hybridization was employed to analyze forty oral bacterial species in 3 groups of C57BL/6 mice: control (n = 12; without any challenge); Y4 (n = 8; received oral inoculation of Aggregatibacter Actinomycetemcomitans strain FDC Y4) and AIA group (n = 12; chronic antigen-induced arthritis). The results showed that AIA and Y4 group exhibited similar patterns of bone loss. The AIA group exhibited higher counts of most bacterial species analyzed with predominance of Gram-negative species similarly to infection-induced PD. Prevotella nigrescens and Treponema denticola were detected only in the Y4 group whereas Campylobacter showae, Streptococcus mitis and Streptococcus oralis were only found in the AIA group. Counts of Parvimonas micra, Selenomonas Noxia and Veillonella parvula were greater in the AIA group whereas Actinomyces viscosus and Neisseira mucosa were in large proportion in Y4 group. In conclusion, AIA is associated with changes in the composition of the oral microbiota, which might account for the alveolar bone loss observed in AIA mice.
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Affiliation(s)
- Jôice Dias Corrêa
- Department of Oral Surgery and Pathology, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Adriana Machado Saraiva
- Department of Oral Surgery and Pathology, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Celso Martins Queiroz-Junior
- Department of Morphology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Mila Fernandes Moreira Madeira
- Department of Microbiology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Poliana Mendes Duarte
- Department of Periodontology, Faculdade de Odontologia, Universidade de Guarulhos, São Paulo, Brazil
| | - Mauro Martins Teixeira
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Danielle Glória Souza
- Department of Microbiology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Tarcília Aparecida da Silva
- Department of Oral Surgery and Pathology, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Minas Gerais, Brazil.
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Oliveira RRDS, Fermiano D, Feres M, Figueiredo LC, Teles FRF, Soares GMS, Faveri M. Levels of Candidate Periodontal Pathogens in Subgingival Biofilm. J Dent Res 2016; 95:711-8. [PMID: 26936213 DOI: 10.1177/0022034516634619] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In recent years, several new periodontal taxa have been associated with the etiology of periodontitis. A recent systematic review provides further support for the pathogenic role of 17 species/phylotypes. Thus, the aim of this study was to assess the prevalence and levels of these species in subjects with generalized chronic periodontitis (GChP; n = 30), generalized aggressive periodontitis (GAgP; n = 30), and periodontal health (PH; n = 30). All subjects underwent clinical and microbiological assessment. Nine subgingival plaque samples were collected from each subject and analyzed for their content of 20 bacterial species/phylotypes through the RNA-oligonucleotide quantification technique. Subjects from the GChP and GAgP groups presented the highest mean values for all clinical parameters in comparison with the PH group (P < 0.05). Subjects with GChP and GAgP showed significantly higher mean levels of Bacteroidetes sp. human oral taxon (HOT) 274, Fretibacterium sp. HOT 360, and TM7 sp. HOT 356 phylotypes, as well as higher mean levels of Filifactor alocis, Fretibacterium fastidiosum, Porphyromonas gingivalis, Tannerella forsythia, and Selenomonas sputigena species than PH subjects (P < 0.05). GAgP subjects presented higher mean levels of TM7 sp. HOT 356 and F. alocis than GChP subjects (P < 0.05). A significantly higher mean prevalence of Bacteroidales sp. HOT 274, Desulfobulbus sp. HOT 041, Fretibacterium sp. HOT 360, and Fretibacterium sp. HOT 362 was found in subjects with GChP and GAgP than in PH subjects. Mean levels of P. gingivalis (r = 0.68), T. forsythia (r = 0.62), F. alocis (r = 0.51, P = 0.001), and Fretibacterium sp. HOT 360 (r = 0.41) were correlated with pocket depth (P < 0.001). In conclusion, Bacteroidales sp. HOT 274, Desulfobulbus sp. HOT 041, Fretibacterium sp. HOT 360, Fretibacterium sp. HOT 362, and TM7 sp. HOT 356 phylotypes, in addition to F. alocis, F. fastidiosum, and S. sputigena, seem to be associated with periodontitis, and their role in periodontal pathogenesis should be further investigated.
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Affiliation(s)
- R R D S Oliveira
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | - D Fermiano
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | - M Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | - L C Figueiredo
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | - F R F Teles
- Department of Periodontology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
| | - G M S Soares
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | - M Faveri
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
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Abstract
A paradigm shift several decades ago elucidated that aggressive periodontitis (AgP) was not a degenerative disorder but a rapid progressive form of plaque-induced inflammatory periodontal disease. Ensuing years of research have led to linkage analysis identification of specific genetic defects responsible for AgP in some families and to the finding that subgingival detection of A. actinomycet-emcomitans JP2 clone is a predictive factor for disease onset and progression. However, rather disappointingly, these ‘proven’ risk factors are only detected in a small subset of AgP cases. Recent advances are leading to a new paradigm shift, with the realization that genetically-driven dysbiotic changes in the subgingival microbiota may predispose to a cascade of events leading to the rapid periodontal tissue destruction seen in AgP. This review tries to dissect the existing literature on the host response-microbial axis of AgP and to propose possible pathogenic pathways in line with current theories.
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Affiliation(s)
- Luigi Nibali
- a Periodontology Unit and Department of Clinical Research; UCL Eastman Dental Institute ; London , UK
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TIAN L, SATO T, NIWA K, KAWASE M, MAYANAGI G, WASHIO J, TAKAHASHI N. PCR-dipstick DNA chromatography for profiling of a subgroup of cariesassociated bacterial species in plaque from healthy coronal surfaces and periodontal pockets . Biomed Res 2016; 37:29-36. [DOI: 10.2220/biomedres.37.29] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Lingyang TIAN
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry
- State Key Laboratory of Oral Diseases, Sichuan University
| | - Takuichi SATO
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry
| | - Kousuke NIWA
- Future Technology Management Center, Corporate R&D, NGK Insulators
| | - Mitsuo KAWASE
- Tohoku University Graduate School of Biomedical Engineering
| | - Gen MAYANAGI
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry
| | - Jumpei WASHIO
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry
| | - Nobuhiro TAKAHASHI
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry
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Deng S, Wang Y, Sun W, Chen H, Wu G. Scaling and root planning, and locally delivered minocycline reduces the load of Prevotella intermedia in an interdependent pattern, correlating with symptomatic improvements of chronic periodontitis: a short-term randomized clinical trial. Ther Clin Risk Manag 2015; 11:1795-803. [PMID: 26676022 PMCID: PMC4675638 DOI: 10.2147/tcrm.s93982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background To evaluate the respective or combinatory efficacy of locally delivered 2% minocycline (MO), and scaling and root planning (SRP) by assessing both clinical parameters and the loads of four main periodontal pathogens in treating chronic periodontitis (CP). Methods Seventy adults with CP were randomly assigned to the three treatment groups: 1) SRP alone; 2) MO alone; and 3) combinatory use of SRP and MO (SRP + MO). Before and 7 days after the treatments, we evaluated both clinical parameters (pocket depth [PD] and sulcus bleeding index [SBI]) and the gene load of four main periodontal pathogens (Aggregatibacter actinomycetemcomitans [Aa], Fusobacterium nucleatum [Fn], Porphyromonas gingivalis [Pg], and Prevotella intermedia [Pi]). Results The bacterial prevalence per patient was: Aa, 31.25%; Fn, 100%; Pg, 95.31%; and Pi, 98.44%. Seven days after treatment, the three treatments significantly reduced both PD and SBI, but not detection frequencies of the four pathogens. For PD, the reduction efficacy of SRP + MO was significantly higher than that of either MO or SRP. Only Pg responded significantly to SRP. Pg and Fn were significantly reduced in the presence of MO. Only SRP + MO showed a significant reduction effect on the gene load of Pi. The reduction of PD significantly correlated with the gene load of Pi (r=0.26; P=0.042) but not of the other bacteria. Conclusion SRP and MO reduced the load of Pi in an interdependent pattern, which correlated with symptomatic improvements of CP.
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Affiliation(s)
- Shuli Deng
- Department of Conservative Dentistry, Affiliated Hospital of Stomatology, Medical College, Zhejiang University, Hangzhou, People's Republic of China
| | - Ying Wang
- Department of Conservative Dentistry, Affiliated Hospital of Stomatology, Medical College, Zhejiang University, Hangzhou, People's Republic of China
| | - Wei Sun
- Department of Conservative Dentistry, Affiliated Hospital of Stomatology, Medical College, Zhejiang University, Hangzhou, People's Republic of China
| | - Hui Chen
- Department of Conservative Dentistry, Affiliated Hospital of Stomatology, Medical College, Zhejiang University, Hangzhou, People's Republic of China
| | - Gang Wu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), VU University Amsterdam and University of Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, the Netherlands
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Abstract
For decades, Aggregatibacter actinomycetemcomitans has been considered the most likely etiologic agent in aggressive periodontitis. Implementation of DNA-based microbiologic methodologies has considerably improved our understanding of the composition of subgingival biofilms, and advanced open-ended molecular techniques even allow for genome mapping of the whole bacterial spectrum in a sample and characterization of both the cultivable and not-yet-cultivable microbiota associated with periodontal health and disease. Currently, A. actinomycetemcomitans is regarded as a minor component of the resident oral microbiota and as an opportunistic pathogen in some individuals. Its specific JP2 clone, however, shows properties of a true exogenous pathogen and has an important role in the development of aggressive periodontitis in certain populations. Still, limited data exist on the impact of other microbes specifically in aggressive periodontitis. Despite a wide heterogeneity of bacteria, especially in subgingival samples collected from patients, bacteria of the red complex in particular, and those of the orange complex, are considered as potential pathogens in generalized aggressive periodontitis. These types of bacterial findings closely resemble those found for chronic periodontitis, representing a mixed polymicrobial infection without a clear association with any specific microorganism. In aggressive periodontitis, the role of novel and not-yet-cultivable bacteria has not yet been elucidated. There are geographic and ethnic differences in the carriage of periodontitis-associated microorganisms, and they need to be taken into account when comparing study reports on periodontal microbiology in different study populations. In the present review, we provide an overview on the colonization of potential periodontal pathogens in childhood and adolescence, and on specific microorganisms that have been suspected for their role in the initiation and progression of aggressive forms of periodontal disease.
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Calandrini CA, Ribeiro AC, Gonnelli AC, Ota-Tsuzuki C, Rangel LP, Saba-Chujfi E, Mayer MPA. Microbial composition of atherosclerotic plaques. Oral Dis 2015; 20:e128-34. [PMID: 24188425 DOI: 10.1111/odi.12205] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 10/08/2013] [Accepted: 10/14/2013] [Indexed: 12/20/2022]
Abstract
OBJECTIVE The association of infections such as periodontitis with atherosclerotic diseases is well documented. In spite of the high diversity of the human oral microbiota, and its close contact with the circulatory system, few oral species were detected in atherosclerotic plaques. Thus, we attempted to evaluate the microbial diversity of atherosclerotic plaques from patients with different periodontal conditions, submitted to endarterectomy by a broad-range microbial method. MATERIALS AND METHODS Patients indicated for aorta endarterectomy due to myocardial infarction were recruited for periodontal clinical examination. The microbial diversity of atherosclerotic plaques (n = 35) was evaluated by sequence analysis of bacterial 16S rRNA libraries. RESULTS Bacterial DNA was detected in 12 endarterectomy specimens (34.3%). Twenty-three bacterial species/phylotypes were identified. Proteobacteria and Firmicutes comprised 78.3% and 21.7% of the identified taxa, respectively. Fifteen (60.9%) phylotypes were reported as yet uncultivable or as yet uncharacterized species. Two uncultured phylotypes were previously detected in the human mouth. The periodontopathogen Aggregatibacter actinomycetemcomitans was detected in seven samples (20%), followed by Pseudomonas species. There was no association between periodontal parameters and detection of A. actinomycetemcomitans or other phylotypes in atherosclerotic plaques. CONCLUSION Our results suggest a role of the oral microbiota in the development of inflammation in atherogenesis, particularly of A. actinomycetemcomitans.
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Affiliation(s)
- C A Calandrini
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil; Department of Periodontology, São Leopoldo Mandic University, Campinas, SP, Brazil
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Vielkind P, Jentsch H, Eschrich K, Rodloff AC, Stingu CS. Prevalence of Actinomyces spp. in patients with chronic periodontitis. Int J Med Microbiol 2015; 305:682-8. [PMID: 26324012 DOI: 10.1016/j.ijmm.2015.08.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
This study investigated the prevalence of Actinomyces spp. in shallow, deep and very deep pockets of patients with chronic periodontitis compared to healthy controls and correlated the results with clinical status. Twenty patients with chronic periodontitis and 15 healthy subjects were enrolled in this study. Clinical indices were recorded in a six-point measurement per tooth. From each patient samples of supra and subgingival plaque were taken separately from teeth with shallow, deep and very deep pockets. Samples of supragingival plaque and sulcular microflora were collected from the healthy subjects. All the samples were cultivated on different media at 37̊C in an anaerobic atmosphere for 7 days. All the suspect colonies were identified using a rapid ID 32 A system (bioMèrieux) and MALDI-TOF-MS analysis using an Autoflex II Instrument (Bruker Daltonics) together with in house developed identification software and a reference spectra database. A total of 977 strains were identified as Actinomyces. Actinomyces naeslundii/oris/johnsonii (430 isolates) was the most prevalent species and was found in all patients and in almost all of the healthy subjects. Significant differences (p=0.003) between the groups were found for Actinomyces odontolyticus/meyeri and Actinomyces israelii which were associated with periodontitis patients. Actinomyces dentalis was found in higher percentage (p=0.015) in the periodontitis group. Actinomyces gerencseriae and Actinomyces massiliensis were significantly more often found supragingivally than subgingivally (p=0.004, p=0.022, respectively) in the periodontitis group. Whether some Actinomyces species, definitely important plaque formers, are actively involved in the pathogenicity of chronic periodontitis needs further investigation.
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Affiliation(s)
- Paul Vielkind
- Institute for Medical Microbiology and Epidemiology of Infectious Diseases, Consultant Laboratory for Anaerobic Bacteria, University Hospital of Leipzig, Liebigstr. 21, 04103 Leipzig, Germany
| | - Holger Jentsch
- Center for Periodontology, Department of Cariology, Endodontology and Periodontology, University of Leipzig, Liebigstr. 12, 04103 Leipzig, Germany
| | - Klaus Eschrich
- Institute of Biochemistry, Medical Faculty, University of Leipzig, Johannisallee 30, 04103 Leipzig, Germany
| | - Arne C Rodloff
- Institute for Medical Microbiology and Epidemiology of Infectious Diseases, Consultant Laboratory for Anaerobic Bacteria, University Hospital of Leipzig, Liebigstr. 21, 04103 Leipzig, Germany
| | - Catalina-Suzana Stingu
- Institute for Medical Microbiology and Epidemiology of Infectious Diseases, Consultant Laboratory for Anaerobic Bacteria, University Hospital of Leipzig, Liebigstr. 21, 04103 Leipzig, Germany.
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