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Souza JG, Costa RC, Sampaio AA, Abdo VL, Nagay BE, Castro N, Retamal-Valdes B, Shibli JA, Feres M, Barão VA, Bertolini M. Cross-kingdom microbial interactions in dental implant-related infections: is Candida albicans a new villain? iScience 2022; 25:103994. [PMID: 35313695 PMCID: PMC8933675 DOI: 10.1016/j.isci.2022.103994] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Candida albicans, an oral fungal opportunistic pathogen, has shown the ability to colonize implant surfaces and has been frequently isolated from biofilms associated with dental implant-related infections, possibly due to its synergistic interactions with certain oral bacteria. Moreover, evidence suggests that this cross-kingdom interaction on implant can encourage bacterial growth, leading to increased fungal virulence and mucosal damage. However, the role of Candida in implant-related infections has been overlooked and not widely explored or even considered by most microbiological analyses and therapeutic approaches. Thus, we summarized the scientific evidence regarding the ability of C. albicans to colonize implant surfaces, interact in implant-related polymicrobial biofilms, and its possible role in peri-implant infections as far as biologic plausibility. Next, a systematic review of preclinical and clinical studies was conducted to identify the relevance and the gap in the existing literature regarding the role of C. albicans in the pathogenesis of peri-implant infections.
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Affiliation(s)
- João G.S. Souza
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Sāo Paulo 07023-070, Brazil
- Dental Science School (Faculdade de Ciências Odontológicas - FCO), Montes Claros, Minas Gerais 39401-303, Brazil
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
- Corresponding author
| | - Raphael C. Costa
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - Aline A. Sampaio
- Department of Clinic, Pathology and Dental Surgery, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Victória L. Abdo
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Sāo Paulo 07023-070, Brazil
| | - Bruna E. Nagay
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - Nidia Castro
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Sāo Paulo 07023-070, Brazil
| | - Belén Retamal-Valdes
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Sāo Paulo 07023-070, Brazil
| | - Jamil A. Shibli
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Sāo Paulo 07023-070, Brazil
| | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Sāo Paulo 07023-070, Brazil
| | - Valentim A.R. Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
- Corresponding author
| | - Martinna Bertolini
- Department of Periodontics and Preventive Dentistry, School of Dental Medicine, University of Pittsburgh, Pennsylvania 15260, USA
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Stage II and stage III periodontitis clinical burdens of HIV-1 undergoing antiretroviral therapy. Clin Oral Investig 2021; 26:2187-2195. [PMID: 34601633 PMCID: PMC8487450 DOI: 10.1007/s00784-021-04201-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 09/22/2021] [Indexed: 12/01/2022]
Abstract
Objectives The aim of this retrospective cross-sectional study was to estimate the association of HIV-1 infection under highly active antiretroviral treatment (HAART) on the clinical parameters of periodontitis. Materials and methods A total of 205 patients were divided in two groups: 74 HIV + and 131 HIV − . Periodontal probing depth (PPD), clinical attachment loss (CAL), bleeding on probing (BOP), and visible supragingival biofilm (VSB) were recorded. The association of HIV-1 infection with the presence of at least 3 sites with PPD ≥ 5 mm and/or CAL ≥ 4 mm in non-adjacent teeth was estimated using binary logistic regression models. Results The variables HIV-1 infection (OR = 5.53, p < 0.0001, 95% CI: 2.45–13.64), age [range 35–50 years old (OR = 5.73, p < 0.0001, 95% CI: 2.49–13.20); > 50 years old (OR = 6.29, p = 0.002, 95% CI: 1.94–20.42)], and VSB (OR = 23.68, p < 0.0001, 95% CI: 8.07–69.53) showed a significant direct association with BOP outcome. Conclusions HIV-1 infection under HAART did not have association with the presence of at least 3 sites with PPD ≥ 5 mm and/or CAL ≥ 4 mm. However, HIV patients on HAART had direct association of HIV-1 infection with BOP and an inverse association with PPD. Clinical relevance These results support that monitoring gingival bleeding associated with oral prophylaxis would be beneficial in the prevention and management of periodontitis in HIV-1 patients on HAART.
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Weinberg A, Tugizov S, Pandiyan P, Jin G, Rakshit S, Vyakarnam A, Naglik JR. Innate immune mechanisms to oral pathogens in oral mucosa of HIV-infected individuals. Oral Dis 2020; 26 Suppl 1:69-79. [PMID: 32862519 PMCID: PMC7570967 DOI: 10.1111/odi.13470] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A crucial aspect of mucosal HIV transmission is the interaction between HIV, the local environmental milieu and immune cells. The oral mucosa comprises many host cell types including epithelial cells, CD4 + T cells, dendritic cells and monocytes/macrophages, as well as a diverse microbiome predominantly comprising bacterial species. While the oral epithelium is one of the first sites exposed to HIV through oral-genital contact and nursing infants, it is largely thought to be resistant to HIV transmission via mechanisms that are still unclear. HIV-1 infection is also associated with predisposition to secondary infections, such as tuberculosis, and other diseases including cancer. This review addresses the following questions that were discussed at the 8th World Workshop on Oral Health and Disease in AIDS held in Bali, Indonesia, 13 September –15 September 2019: (a) How does HIV infection affect epithelial cell signalling? (b) How does HIV infection affect the production of cytokines and other innate antimicrobial factors, (c) How is the mucosal distribution and function of immune cells altered in HIV infection? (d) How do T cells affect HIV (oral) pathogenesis and cancer? (e) How does HIV infection lead to susceptibility to TB infections?
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Affiliation(s)
- Aaron Weinberg
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Sharof Tugizov
- Department of Medicine, University of California-San Francisco, San Francisco, CA, USA
| | - Pushpa Pandiyan
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Ge Jin
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Srabanti Rakshit
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Annapurna Vyakarnam
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.,Laboratory of Immunology of HIV-TB co-infection, Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, India
| | - Julian R Naglik
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
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Ryder MI, Shiboski C, Yao TJ, Moscicki AB. Current trends and new developments in HIV research and periodontal diseases. Periodontol 2000 2020; 82:65-77. [PMID: 31850628 DOI: 10.1111/prd.12321] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
With the advent of combined antiretroviral therapies, the face of HIV infection has changed dramatically from a disease with almost certain mortality from serious comorbidities, to a manageable chronic condition with an extended lifespan. In this paper we present the more recent investigations into the epidemiology, microbiology, and pathogenesis of periodontal diseases in patients with HIV, and the effects of combined antiretroviral therapies on the incidence and progression of these diseases both in adults and perinatally infected children. In addition, comparisons and potential interactions between the HIV-associated microbiome, host responses, and pathogenesis in the oral cavity with the gastrointestinal tract and other areas of the body are presented. Also, the effects of HIV and combined antiretroviral therapies on comorbidities such as hyposalivation, dementia, and osteoporosis on periodontal disease progression are discussed.
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Affiliation(s)
- Mark I Ryder
- Department of Orofacial Sciences, School of Dentistry, University of California, San Francisco, California, USA
| | - Caroline Shiboski
- Department of Orofacial Sciences, School of Dentistry, University of California, San Francisco, California, USA
| | - Tzy-Jyun Yao
- Center for Biostatistics in AIDS Research (CBAR), Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Anna-Barbara Moscicki
- Division of Adolescent Medicine, Department of Pediatrics, University of California, Los Angeles, California, USA
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Gonçalves LS, Ferreira DDC, Heng NCK, Vidal F, Santos HF, Zanicotti DG, Vasconcellos M, Stambovsky M, Lawley B, Rubini NDPM, Santos KRN, Seymour GJ. Oral bacteriome of HIV‐1‐infected children from Rio de Janeiro, Brazil: Next‐generation DNA sequencing analysis. J Clin Periodontol 2019; 46:1192-1204. [DOI: 10.1111/jcpe.13176] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 07/15/2019] [Accepted: 07/30/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Lucio Souza Gonçalves
- Programa de Pós‐Graduação em Odontologia Universidade Estácio de Sá Rio de Janeiro Brazil
| | - Dennis de Carvalho Ferreira
- Programa de Pós‐Graduação em Odontologia Universidade Estácio de Sá Rio de Janeiro Brazil
- Universidade Veiga de Almeida Rio de Janeiro Brazil
| | | | - Fabio Vidal
- Programa de Pós‐Graduação em Odontologia Universidade Estácio de Sá Rio de Janeiro Brazil
| | | | | | | | | | - Blair Lawley
- Department of Microbiology and Immunology University of Otago Dunedin New Zealand
| | | | - Katia Regina Netto Santos
- Instituto de Microbiologia Paulo de Góes Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil
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Effect of 5 Popular Disinfection Methods on Microflora of Laboratory: Customized Implant Abutments. IMPLANT DENT 2019; 28:437-446. [PMID: 31584891 DOI: 10.1097/id.0000000000000906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE To compare the efficacy of 5 different decontamination methods of titanium abutments and to assess their possible effects on surface roughness of titanium. MATERIALS AND METHODS Micrococcus luteus, Acinetobacter baumannii, Enterococcus faecalis, and Candida albicans were cocultured to form a multispecies biofilm on 18 titanium discs. In another group, Bacillus subtilis, a spore-forming species, was cultivated on another set of 18 titanium discs. Each group was further divided into 5 test groups: high-pressure steam cleaning (4 Mpa, 5 seconds), NaOCl (1% active chlorine, 5 minutes), H2O2 (3%, 5 minutes), GaAlAs laser (810 nm, CW, 1 W, 400-μm fiber, 1-mm distance, 1 minute), Er:YAG laser (2940 nm, pulse mode, 100 mJ, 10 Hz, 230-μm noncontact handpiece, 4-mm distance, 50/50% air/water, 1 minute), and a control group of no treatment. After each decontamination procedure, the remaining microbial load was reported as colony-forming unit/disc. To evaluate the effect of each treatment on titanium discs, surface roughness parameters including Sa, Sq, Ssk, Sku, Sal, and Sdr were measured at 6 points of each disc using an atomic force microscope. RESULTS Complete disinfection was achieved using high-pressure steam, NaOCl, H2O2, and Er:YAG laser. GaAlAs laser was able to reduce microbial count over 90%. Sa and Sq parameters were only increased significantly in diluted NaOCl group in comparison with control group, whereas Sdr was increased significantly in both absolute and diluted NaOCl groups. CONCLUSION All the methods could decontaminate machined titanium surfaces, although complete microbial elimination was not achieved by diode laser. None of the treatments altered surface roughness significantly, except for sodium hypochlorite (NaOCl).
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The Dysbiosis and Inter-Kingdom Synergy Model in Oropharyngeal Candidiasis, a New Perspective in Pathogenesis. J Fungi (Basel) 2019; 5:jof5040087. [PMID: 31546600 PMCID: PMC6958497 DOI: 10.3390/jof5040087] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 12/28/2022] Open
Abstract
As more information emerges on oral microbiota using advanced sequencing methodologies, it is imperative to examine how organisms modulate the capacity of each other to colonize or trigger infection. Most mouse models of oral C. albicans infection have focused on interactions with single bacterial species. Thus, little is known about the microbiome-mediated interactions that control the switch of C. albicans from commensalism to infection. Evidence is accumulating that in immunosuppression where mucosal candidiasis is more prevalent, there is an altered oral bacterial microbiome with reduced diversity, but not an altered mycobiome. Oropharyngeal candidiasis in immunosuppressed humans and mice is associated with a further reduction in oral bacterial diversity and a dysbiotic shift with significant enrichment of streptococcal and enterococcal species. Our recent studies in a cancer chemotherapy mouse model supported the combined profound effect of immunosuppression and C. albicans in reducing oral bacterial diversity and provided the first direct evidence that these changes contribute to pathogenesis, representing dysbiosis. There is still a gap in understanding the relationship between Candida and the oral bacterial microbiome. We propose that certain oral commensal bacteria contribute to fungal pathogenesis and we identify gaps in our understanding of the mechanisms involved in this cooperative virulence.
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Alagl AS, Madi M, Bedi S, Al Onaizan F, Al-Aql ZS. The Effect of Er,Cr:YSGG and Diode Laser Applications on Dental Implant Surfaces Contaminated with Acinetobacter Baumannii and Pseudomonas Aeruginosa. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2073. [PMID: 31252629 PMCID: PMC6651164 DOI: 10.3390/ma12132073] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 06/20/2019] [Accepted: 06/25/2019] [Indexed: 12/17/2022]
Abstract
Treatment of peri-implantitis through several implant surface decontamination techniques have been reported, however, some of them can negatively alter the implant surface or enhance more bacterial resistance. The aim of this in vitro study was to evaluate implant surface decontamination by means of Er,Cr:YSGG and diode lasers. Fifty micro-textured (MTX) dental implants were contaminated with Acinetobacter baumannii (n = 25) and with Pseudomonas aeruginosa (n = 25). All implants were then divided into five groups for the decontamination procedure. In group I (GI), decontamination was done with an Er,Cr:YSGG laser (2780 nm), while in group II (GII) decontamination was performed using photodynamic therapy (a 650 nm diode laser). In Group III (GIII) decontamination was performed with photodynamic therapy (an 808 nm diode laser), and in group IV (GIV) decontamination was performed with 0.12% chlorhexidine. Group V (GV) was the control group with no decontamination. After decontamination, colony forming units (CFU) were counted and implants were prepared for SEM analysis. A significant difference (p < 0.001) was observed for GI compared to the other groups, and also for GIV compared to both GII and GIII. The Er,Cr:YSGG laser (GI) showed the best results in decontaminating the implant surface. Chlorhexidine (GIV), proved to be better in decontaminating the implant surface than photodynamic therapy GII and diode laser GIII. No significant difference was found between group GII and GIII. The SEM analysis showed no significant change in the implant surface topography. The results of this study suggest that the Er,Cr:YSGG laser can be considered as an effective technique for reducing bacteria contamination on implant surfaces.
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Affiliation(s)
- Adel S Alagl
- Department of Preventive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Marwa Madi
- Department of Preventive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
| | - Sumit Bedi
- Department of Preventive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Faisal Al Onaizan
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Zainab S Al-Aql
- Dental Services, King Abdulaziz Medical City, National Guard Health Affairs, Jeddah 21423, Saudi Arabia
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Bertolini M, Dongari-Bagtzoglou A. The Relationship of Candida albicans with the Oral Bacterial Microbiome in Health and Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1197:69-78. [PMID: 31732935 DOI: 10.1007/978-3-030-28524-1_6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Candida albicans is an opportunistic pathogen colonizing the oropharyngeal, esophageal, and gastrointestinal mucosa in most healthy humans. In immunocompromised hosts, this fungal organism can cause mucosal candidiasis in these sites. C. albicans also causes fungemia, a serious consequence of cancer cytotoxic chemotherapy, which is thought to develop from fungal translocation through compromised mucosal barriers. Changes in endogenous bacterial population size or composition as well as changes in the host environment can transform fungal commensals into opportunistic pathogens in the upper and lower GI tract. Pioneering studies from our group have shown that a ubiquitous oral commensal of the mitis streptococcal group (Streptococcus oralis) has a mutualistic relationship with C. albicans, with C. albicans enabling streptococcal biofilm growth at mucosal sites, and S. oralis facilitating invasion of the oral and esophageal mucosa by C. albicans. In these studies, we used a cortisone-induced immunosuppression mouse model. More recently, the development of a novel mouse chemotherapy model has allowed us to examine the interactions of C. albicans with the endogenous bacterial microbiota in the oral and small intestinal mucosa, two sites adversely affected by cytotoxic chemotherapy. In this model, oral inoculation with C. albicans causes severe dysbiosis in the mucosal bacterial composition in both sites. We also found that antibiotic treatment ameliorates invasion of the oral mucosa but aggravates dissemination through the intestinal mucosa. In this chapter, we discuss work from our laboratory and others examining the relationships of C. albicans with oral bacteria and their role in mucosal homeostasis or disease.
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Affiliation(s)
- Martinna Bertolini
- Department of Oral Health and Diagnostic Sciences, University of Connecticut Health Center, Farmington, CT, USA
| | - Anna Dongari-Bagtzoglou
- Department of Oral Health and Diagnostic Sciences, University of Connecticut Health Center, Farmington, CT, USA.
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Ferreira MVM, Cavalcanti ÉFF, PM Rubini ND, Ferreira DC, Gonçalves LS, V Colombo AP. Oral status and periodontal microbiota of HIV-infected youth infected by vertical transmission. Future Virol 2018. [DOI: 10.2217/fvl-2018-0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: This study evaluated the oral status and microbiota of HIV+ youth infected by vertical transmission. Materials & methods: 34 HIV+ and 36 HIV- individuals (14–24 years of age) were examined for oral infections/lesions. Subgingival biofilm was collected and the microbiota determined by checkerboard DNA–DNA hybridization. Results: Over 90% of the HIV+ youth were under highly active antiretroviral therapy, but 64.6% had AIDS and 47% presented oral manifestations. HIV+ youth showed more periodontal attachment loss and inflammation than HIV- (p < 0.05), and also high prevalence of caries. Most species were detected in higher prevalence in the microbiota of HIV+ than controls. Conclusion: HIV+ youth infected by vertical transmission presented more periodontal destruction and inflammation, and greater prevalence of microbial pathogens compared with HIV- individuals.
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Affiliation(s)
- Mariana VM Ferreira
- School of Dentistry, Department of Clinics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Department of Medical Microbiology, Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Édila FF Cavalcanti
- School of Dentistry, Department of Clinics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Norma de PM Rubini
- Department of Allergy & Immunology, Gafrée e Guinle University Hospital, Federal University of the State of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Dennis C Ferreira
- School of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - Lucio S Gonçalves
- School of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - Ana Paula V Colombo
- Department of Medical Microbiology, Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Pataro AL, Cortelli SC, Abreu MHNG, Cortelli JR, Franco GCN, Aquino DR, Cota LOM, Costa FO. Frequency of periodontal pathogens and Helicobacter pylori in the mouths and stomachs of obese individuals submitted to bariatric surgery: a cross-sectional study. J Appl Oral Sci 2016; 24:229-38. [PMID: 27383704 PMCID: PMC5019838 DOI: 10.1590/1678-775720150534] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 03/15/2016] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES This cross-sectional study compared the frequency of oral periodontopathogens and H. pylori in the mouths and stomachs of obese individuals with or without periodontitis submitted to bariatric surgery. MATERIAL AND METHODS One hundred and fifty-four men and women aged 18-65 were conveniently distributed into four groups. Two groups were composed of individuals who underwent bariatric surgery with (BP) (n=40) and without (BNP) (n=39) periodontitis and two obese control groups with (CP) (n=35) and without (CNP) (n=40) periodontitis. The oral pathogens Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, Parvimonas micra, Treponema denticola, Tannerella forsythia, Campylobacter rectus, and Helicobacter pylori were detected by a polymerase chain reaction technique using saliva, tongue and stomach biopsy samples. RESULTS Statistical analysis demonstrated that periodontopathogens were highly frequent in the mouth (up to 91.4%). In the bariatric surgically treated group, orally, P. gingivalis, T. denticola and T. forsythia were more frequent in periodontitis, while C. rectus was more frequent in non-periodontitis subjects. Stomach biopsies also revealed the high frequency of five oral species in both candidates for bariatric surgery (91.6%) and the bariatric (83.3%) groups. H. pylori was frequently detected in the mouth (50.0%) and stomach (83.3%). In the stomach, oral species and H. pylori appeared in lower frequency in the bariatric group. CONCLUSIONS Obese individuals showed high frequencies of periodontopathogens and H. pylori in their mouths and stomachs. Bariatric surgery showed an inverse microbial effect on oral and stomach environments by revealing higher oral and lower stomach bacterial frequencies.
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Affiliation(s)
- André Luiz Pataro
- - Universidade Federal de Minas Gerais, Departamento de Periodontia, Belo Horizonte, Minas Gerais, Brasil
| | - Sheila Cavalca Cortelli
- - Universidade de Taubaté, Núcleo de Pesquisa Periodontal, Departamento de Odontologia, Taubaté, São Paulo, Brasil
| | | | - José Roberto Cortelli
- - Universidade de Taubaté, Núcleo de Pesquisa Periodontal, Departamento de Odontologia, Taubaté, São Paulo, Brasil
| | - Gilson Cesar Nobre Franco
- - Universidade de Taubaté, Núcleo de Pesquisa Periodontal, Departamento de Odontologia, Taubaté, São Paulo, Brasil.,- Universidade Estadual de Ponta Grossa, Laboratório de Fisiologia e Patofisiologia, Departamento de Biologia Geral, Ponta Grossa, Paraná, Brasil
| | - Davi Romeiro Aquino
- - Universidade de Taubaté, Núcleo de Pesquisa Periodontal, Departamento de Odontologia, Taubaté, São Paulo, Brasil
| | - Luis Otavio Miranda Cota
- - Universidade Federal de Minas Gerais, Departamento de Periodontia, Belo Horizonte, Minas Gerais, Brasil
| | - Fernando Oliveira Costa
- - Universidade Federal de Minas Gerais, Departamento de Periodontia, Belo Horizonte, Minas Gerais, Brasil
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De Rossi A, Ferreira DCA, da Silva RAB, de Queiroz AM, da Silva LAB, Nelson-Filho P. Antimicrobial activity of toothpastes containing natural extracts, chlorhexidine or triclosan. Braz Dent J 2016; 25:186-90. [PMID: 25252251 DOI: 10.1590/0103-6440201300027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Accepted: 05/23/2014] [Indexed: 11/21/2022] Open
Abstract
The objective of this in vitro study was to evaluate the antimicrobial effect of toothpastes containing natural extracts, chlorhexidine or triclosan. The effectiveness of toothpastes containing natural extracts (Parodontax®), 0.12% chlorhexidine (Cariax®), 0.3% triclosan (Sanogil®) or fluoride (Sorriso®, control) was evaluated against yeasts, Gram-positive and Gram-negative bacteria using the disk diffusion method. Water was used as a control. Disks impregnated with the toothpastes were placed in Petri dishes containing culture media inoculated with 23 indicative microorganisms by the pour plate method. After incubation, the inhibition growth halos were measured and statistical analyses (α=0.05) were performed. The results indicated that all formulations, except for conventional toothpaste (Sorriso®), showed antimicrobial activity against Gram-positive bacteria and yeasts. The toothpaste containing natural extracts (Parodontax®) was the only product able to inhibit the growth of Pseudomonas aeruginosa. The toothpastes containing chlorhexidine, triclosan or natural extracts presented antimicrobial activity against Gram-positive bacteria and yeasts.
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Affiliation(s)
- Andiara De Rossi
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Danielly Cunha Araújo Ferreira
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Raquel Assed Bezerra da Silva
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Alexandra Mussolino de Queiroz
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Léa Assed Bezerra da Silva
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Paulo Nelson-Filho
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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Zhang F, He S, Jin J, Dong G, Wu H. Exploring salivary microbiota in AIDS patients with different periodontal statuses using 454 GS-FLX Titanium pyrosequencing. Front Cell Infect Microbiol 2015; 5:55. [PMID: 26191508 PMCID: PMC4488753 DOI: 10.3389/fcimb.2015.00055] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 06/19/2015] [Indexed: 10/28/2022] Open
Abstract
Patients with acquired immunodeficiency syndrome (AIDS) are at high risk of opportunistic infections. Oral manifestations have been associated with the level of immunosuppression, these include periodontal diseases, and understanding the microbial populations in the oral cavity is crucial for clinical management. The aim of this study was to examine the salivary bacterial diversity in patients newly admitted to the AIDS ward of the Public Health Clinical Center (China). Saliva samples were collected from 15 patients with AIDS who were randomly recruited between December 2013 and March 2014. Extracted DNA was used as template to amplify bacterial 16S rRNA. Sequencing of the amplicon library was performed using a 454 GS-FLX Titanium sequencing platform. Reads were optimized and clustered into operational taxonomic units for further analysis. A total of 10 bacterial phyla (106 genera) were detected. Firmicutes, Bacteroidetes, and Proteobacteria were preponderant in the salivary microbiota in AIDS patients. The pathogen, Capnocytophaga sp., and others not considered pathogenic such as Neisseria elongata, Streptococcus mitis, and Mycoplasma salivarium but which may be opportunistic infective agents were detected. Dialister pneumosintes, Eubacterium infirmum, Rothia mucilaginosa, and Treponema parvum were preponderant in AIDS patients with periodontitis. Patients with necrotic periodontitis had a distinct salivary bacterial profile from those with chronic periodontitis. This is the first study using advanced sequencing techniques focused on hospitalized AIDS patients showing the diversity of their salivary microbiota.
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Affiliation(s)
- Fang Zhang
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University Chengdu, China
| | - Shenghua He
- Public Health Clinical Center of Chengdu Chengdu, China
| | - Jieqi Jin
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University Chengdu, China
| | - Guangyan Dong
- State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University Chengdu, China
| | - Hongkun Wu
- Department of Geriatric Dentistry, West China College of Stomatology, Sichuan University Chengdu, China
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Ferreira DC, Gonçalves LS, Siqueira JF, Carmo FL, Santos HF, Feres M, Figueiredo LC, Soares GM, Rosado AS, dos Santos KRN, Colombo APV. Subgingival bacterial community profiles in HIV-infected Brazilian adults with chronic periodontitis. J Periodontal Res 2015; 51:95-102. [PMID: 26040412 DOI: 10.1111/jre.12287] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2015] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND OBJECTIVE To compare the subgingival microbial diversity between non-HIV-infected and HIV-infected individuals with chronic periodontitis using denaturing gradient gel electrophoresis (DGGE). MATERIAL AND METHODS Thirty-two patients were selected: 11 were HIV-infected and 21 were non-HIV-infected, and all had chronic periodontitis. Periodontal measurements included probing depth, clinical attachment level, visible supragingival biofilm and bleeding on probing. Subgingival biofilm samples were collected from periodontal sites (50% with probing depth ≤ 4 mm and 50% with probing depth ≥ 5 mm) and whole-genomic-amplified DNA was obtained. The DNA samples were subjected to amplification of a 16S rRNA gene fragment using universal bacterial primers, followed by DGGE analysis of the amplified gene sequences. RESULTS The non-HIV-infected group presented higher mean full-mouth visible supragingival biofilm (p = 0.004), bleeding on probing (p = 0.006), probing depth (p < 0.001) and clinical attachment level (p = 0.001) in comparison with the HIV-infected group. DGGE analysis revealed 81 distinct bands from all 33 individuals. Banding profiles revealed a higher diversity of the bacterial communities in the subgingival biofilm of HIV-infected patients with chronic periodontitis. Moreover, cluster and principal component analyses demonstrated that the bacterial community profiles differed between these two conditions. High interindividual and intra-individual variability in banding profiles were observed for both groups. CONCLUSION HIV-infected patients with chronic periodontitis present greater subgingival microbial diversity. In addition, the bacterial communities associated with HIV-infected and non-HIV-infected individuals are different in structure.
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Affiliation(s)
- D C Ferreira
- Department of Endodontics and Molecular Microbiology Laboratory, Estácio de Sá University, Rio de Janeiro, Brazil
| | - L S Gonçalves
- Department of Endodontics and Molecular Microbiology Laboratory, Estácio de Sá University, Rio de Janeiro, Brazil
| | - J F Siqueira
- Department of Endodontics and Molecular Microbiology Laboratory, Estácio de Sá University, Rio de Janeiro, Brazil
| | - F L Carmo
- Institute of Microbiology Prof. Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - H F Santos
- Institute of Microbiology Prof. Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - M Feres
- Dental Research Division, Department of Periodontology, Guarulhos University, Guarulhos, Brazil
| | - L C Figueiredo
- Dental Research Division, Department of Periodontology, Guarulhos University, Guarulhos, Brazil
| | - G M Soares
- Dental Research Division, Department of Periodontology, Guarulhos University, Guarulhos, Brazil
| | - A S Rosado
- Institute of Microbiology Prof. Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - K R N dos Santos
- Institute of Microbiology Prof. Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - A P V Colombo
- Institute of Microbiology Prof. Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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15
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Gušić I, Medić D, Radovanović Kanjuh M, Ðurić M, Brkić S, Turkulov V, Predin T, Mirnić J. Treatment of Periodontal Disease with an Octenidine-based Antiseptic in HIV-positive Patients. Int J Dent Hyg 2015; 14:108-16. [PMID: 25847374 DOI: 10.1111/idh.12141] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate the effects of a periodontal therapy with subsequent application of an octenidine (OCT)-based antiseptic in HIV-positive patients receiving highly active antiretroviral therapy. METHODS HIV-positive patients with a clinically diagnosed periodontal disease were randomly divided into two groups (n = 30/group). Both groups initially received a periodontal therapy. Patients in the OCT group additionally used an OCT-based mouthwash. Subgingival plaque samples and periodontal indices were analysed prior to treatment onset as well as one and 3 months post-treatment. RESULTS Periodontal therapy has resulted in a significant decrease in the values of all periodontal indices one and 3 months following the therapy completion (P = 0.000). The effects of the two applied therapeutic protocols differed significantly in terms of the variation in the PBI (F = 4.617; P = 0.017) and the PD (F = 3.203; P = 0.044) value. In the patients in the OCT group, a more pronounced decrease in the PBI and PD was noted at 1-month follow-up as well as a greater increase in the PD value 3 months upon treatment completion. In the OCT group, no more atypical microorganisms were detectable 1 month post-treatment, while in the control group they were found in 34.5% of patients. CONCLUSIONS The periodontal therapy bears good results in HIV-positive patients. Additional administration of OCT contributes to the significant decline in the PBI and DS values and eliminates atypical microorganisms within 1 month post-treatment. However, more favourable results were not noted in the OCT group at the 3-month assessment.
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Affiliation(s)
- I Gušić
- Department of Periodontology and Oral Medicine, Clinic for Dentistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - D Medić
- Institute of Public Health of Vojvodina, Centre for Microbiology, Novi Sad, Serbia
| | | | - M Ðurić
- Department of Periodontology and Oral Medicine, Clinic for Dentistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - S Brkić
- Clinic for Infectious Diseases, Clinical Centre of Vojvodina, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - V Turkulov
- Clinic for Infectious Diseases, Clinical Centre of Vojvodina, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - T Predin
- Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - J Mirnić
- Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
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16
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Arirachakaran P, Poovorawan Y, Dahlén G. Highly-active antiretroviral therapy and oral opportunistic microorganisms in HIV-positive individuals of Thailand. ACTA ACUST UNITED AC 2014; 7:158-67. [PMID: 25537925 DOI: 10.1111/jicd.12142] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 10/25/2014] [Indexed: 12/01/2022]
Abstract
AIM Oral mucosal lesions and opportunistic microorganisms in HIV-positive Thais treated with highly-active antiretroviral therapy (HAART) for more than 5 years were investigated. METHODS A total of 221 HIV-infected patients, comprising 148 HIV patients undergoing HAART for more than 5 years, 20 non-HAART HIV patients, 53 vertically-transmitted (VT) HAART HIV patients, and 30 HIV-negative controls, were examined for CD4+ counts, viral load, saliva secretion rate, and oral mucosal lesions. Samples from the tongue, gingival crevices, and mucosal lesions when present were cultured for the amounts of Candida, staphylococci, enterococci, and aerobic Gram-negative bacilli. RESULTS HAART (including HIV-VT) maintained oral microbial homeostasis predominated by alpha-hemolytic streptococci similar to the non-HIV controls and with a low prevalence of mucosal lesions. The HAART group had a reduced saliva secretion rate. The frequency and load of opportunistic microorganisms in the HAART group were similar to the non-HAART group, which was significantly higher than the HIV-negative controls. Candida spp. was found significantly more frequently on the tongue in HIV-infected individuals with CD4+ counts <500 cells/mm(3). CONCLUSION Although we did not find lower levels of mucosal lesions among HAART compared to non-HAART individuals, HAART therapy could prolong the time before opportunistic oral pathogens overwhelm the commensal members of oral microbiota.
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Affiliation(s)
- Pratanporn Arirachakaran
- Department of Oral Medicine, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Infectious Diseases Clinic and Dental Hospital, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Gunnar Dahlén
- Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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17
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Thurnheer T, Belibasakis GN. Integration of non-oral bacteria into in vitro oral biofilms. Virulence 2014; 6:258-64. [PMID: 25483866 PMCID: PMC4601515 DOI: 10.4161/21505594.2014.967608] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 09/01/2014] [Accepted: 09/13/2014] [Indexed: 01/23/2023] Open
Abstract
Biofilms are polymicrobial communities that grow on surfaces in nature. Oral bacteria can spontaneously form biofilms on the surface of teeth, which may compromise the health of the teeth, or their surrounding (periodontal) tissues. While the oral bacteria exhibit high tropism for their specialized ecological niche, it is not clear if bacteria that are not part of the normal oral microbiota can efficiently colonize and grow within oral biofilms. By using an in vitro "supragingival" biofilm model of 6 oral species, this study aimed to investigate if 3 individual bacterial species that are not part of the normal oral microbiota (Eschericia coli, Staphylococcus aureus, Enterococcus faecails) and one not previously tested oral species (Aggregatibacter actinomycetemcomitans) can be incorporated into this established supragingival biofilm model. Staphylococcus aureus and A. actinomycetemcomitans were able to grow efficiently in the biofilm, without disrupting the growth of the remaining species. They localized in sparse small aggregates within the biofilm mass. Enterococcus faecalis and E. coli were both able to populate the biofilm at high numbers, and suppressed the growth of A. oris and S. mutants. Enterococcus faecalis was arranged in a chain-like conformation, whereas E. coli was densely and evenly spread throughout the biofilm mass. In conclusion, it is possible for selected species that are not part of the normal oral microbiota to be introduced into an oral biofilm, under the given experimental micro-environmental conditions. Moreover, the equilibrated incorporation of A. actinomycetemcomitans and S. aureus in this oral biofilm model could be a useful tool in the study of aggressive periodontitis and peri-implantitis, in which these organisms are involved, respectively.
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Affiliation(s)
- Thomas Thurnheer
- Oral Microbiology and Immunology, Institute of Oral Biology, Center of Dental Medicine; University of Zürich; Zürich, Switzerland
| | - Georgios N Belibasakis
- Oral Microbiology and Immunology, Institute of Oral Biology, Center of Dental Medicine; University of Zürich; Zürich, Switzerland
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18
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Souto R, Silva-Boghossian CM, Colombo APV. Prevalence of Pseudomonas aeruginosa and Acinetobacter spp. in subgingival biofilm and saliva of subjects with chronic periodontal infection. Braz J Microbiol 2014; 45:495-501. [PMID: 25242933 PMCID: PMC4166274 DOI: 10.1590/s1517-83822014000200017] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Accepted: 09/09/2013] [Indexed: 01/31/2023] Open
Abstract
P. aeruginosa and Acinetobacter spp. are important pathogens associated with late nosocomial pneumonia in hospitalized and institutionalized individuals. The oral cavity may be a major source of these respiratory pathogens, particularly in the presence of poor oral hygiene and periodontal infection. This study investigated the prevalence of P. aeruginosa and Acinetobacter spp. in subgingival biofilm and saliva of subjects with periodontal disease or health. Samples were obtained from 55 periodontally healthy (PH) and 169 chronic periodontitis (CP) patients. DNA was obtained from the samples and detection of P. aeruginosa and Acinetobacter spp. was carried out by multiplex and nested PCR. P. aeruginosa and Acinetobacter spp. were detected in 40% and 45% of all samples, respectively. No significant differences in the distribution of these microorganisms between men and women, subgingival biofilm and saliva samples, patients ≤ 35 and > 35 years of age, and smokers and non-smokers were observed regardless periodontal status (p > 0.05). In contrast, the frequencies of P. aeruginosa and Acinetobacter spp. in saliva and biofilm samples were significantly greater in CP than PH patients (p < 0.01). Smokers presenting P. aeruginosa and high frequencies of supragingival plaque were more likely to present CP than PH. P. aeruginosa and Acinetobacter spp. are frequently detected in the oral microbiota of CP. Poor oral hygiene, smoking and the presence of P. aeruginosa are strongly associated with periodontitis.
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Affiliation(s)
- Renata Souto
- Instituto de Microbiologia Universidade Federal do Rio de Janeiro Rio de JaneiroRJ Brazil Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Carina M Silva-Boghossian
- Departamento de Clínica Odontológica Faculdade de Odontologia Universidade Federal do Rio de Janeiro Rio de JaneiroRJ Brazil Departamento de Clínica Odontológica, Faculdade de Odontologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Ana Paula Vieira Colombo
- Instituto de Microbiologia Universidade Federal do Rio de Janeiro Rio de JaneiroRJ Brazil Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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19
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Anand PS, Kamath KP, Anil S. Role of dental plaque, saliva and periodontal disease in Helicobacter pylori infection. World J Gastroenterol 2014; 20:5639-53. [PMID: 24914323 PMCID: PMC4024772 DOI: 10.3748/wjg.v20.i19.5639] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 01/19/2014] [Accepted: 03/06/2014] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori (H. pylori) infection is one of the most common bacterial infections in humans. Although H. pylori may be detected in the stomach of approximately half of the world's population, the mechanisms of transmission of the microorganism from individual to individual are not yet clear. Transmission of H. pylori could occur through iatrogenic, fecal-oral, and oral-oral routes, and through food and water. The microorganism may be transmitted orally and has been detected in dental plaque and saliva. However, the role of the oral cavity in the transmission and recurrence of H. pylori infection has been the subject of debate. A large number of studies investigating the role of oral hygiene and periodontal disease in H. pylori infection have varied significantly in terms of their methodology and sample population, resulting in a wide variation in the reported results. Nevertheless, recent studies have not only shown that the microorganism can be detected fairly consistently from the oral cavity but also demonstrated that the chances of recurrence of H. pylori infection is more likely among patients who harbor the organism in the oral cavity. Furthermore, initial results from clinical trials have shown that H. pylori-positive dyspeptic patients may benefit from periodontal therapy. This paper attempts to review the current body of evidence regarding the role of dental plaque, saliva, and periodontal disease in H. pylori infection.
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20
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Oral Cavity as an Extragastric Reservoir of Helicobacter pylori. ISRN GASTROENTEROLOGY 2014; 2014:261369. [PMID: 24701355 PMCID: PMC3950549 DOI: 10.1155/2014/261369] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 12/24/2013] [Indexed: 12/11/2022]
Abstract
Background. Several studies were reported on the prevalence, and relationship between the existence of Helicobacter pylori (H. pylori) in oral cavity and in stomach of patients. The purpose of this study was to systematically review the existing literature on the presence of H. pylori in the oral cavity and its link to gastric infection, the existence of coinfection, and the impact of anti-H. pylori therapy on the dental plaque and vice versa. Method. Two authors independently searched the Medline, EMBASE, Cochrane Library, Web of Science, Google Scholar, and Scopus databases for relevant studies. The articles were analyzed critically and all qualified studies were included. The search was carried out by using a combined text and the MeSH search strategies: using the key words Helicobacter, Helicobacter pylori, and H. pylori in combination with dental plaque, periodontitis, and oral hygiene. Results. The data was presented in 8 tables and each topic separately discussed. Conclusion. Based on the systematic review of the available literature on H. pylori infection and its presence in the oral cavity, it can be concluded that dental plaque can act as a reservoir, and proper oral hygiene maintenance is essential to prevent reinfection. Due to the diversified methods and population groups involved in the available literature, no concrete evidence can be laid down. Further studies are necessary to establish the role of H. pylori in the oral cavity and its eradication on preventing the gastroduodenal infection.
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21
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do Nascimento C, dos Santos JN, Pedrazzi V, Pita MS, Monesi N, Ribeiro RF, de Albuquerque RF. Impact of temperature and time storage on the microbial detection of oral samples by Checkerboard DNA–DNA hybridization method. Arch Oral Biol 2014; 59:12-21. [DOI: 10.1016/j.archoralbio.2013.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 09/16/2013] [Accepted: 10/15/2013] [Indexed: 11/29/2022]
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22
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Pereira VT, Pavan P, Souza RC, Souto R, Vettore MV, Torres SR, Colombo APV, de Uzeda M, Sansone C, Gonçalves LS. The association between detectable plasmatic human immunodeficiency virus (HIV) viral load and different subgingival microorganisms in Brazilian adults with HIV: a multilevel analysis. J Periodontol 2013; 85:697-705. [PMID: 23952074 DOI: 10.1902/jop.2013.130273] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND This study investigates the association between detectable plasmatic human immunodeficiency virus (HIV) viral load (HVL) and high levels of periodontal- and non-periodontal-related microorganisms in the subgingival microbiota of individuals with HIV. METHODS Thirty-seven individuals with HIV were divided into two groups: 1) detectable HVL (n = 15); and 2) undetectable HVL (n = 22). Subgingival biofilm samples were obtained, and the levels of 35 microbial species were determined by the checkerboard DNA-DNA hybridization method. Periodontal clinical measures and laboratory and sociodemographic data were also registered. χ(2) test, Fisher exact test, and Mann-Whitney U test were used to compare groups. Multilevel ordinal regression models were used to test the association between HVL and the levels of 35 microbial species in subgingival biofilm, adjusted for confounders. RESULTS Of the 35 species studied, 11 (31.4%) showed higher mean levels in the detectable HVL group than undetectable HVL group (P <0.001). These species included Actinomyces naeslundii II, Actinomyces israelii, Actinomyces odontolyticus, Veillonella parvula, Capnocytophaga gingivalis, Eikenella corrodens, Campylobacter concisus, Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola, and Candida albicans. Significant associations between detectable HVL and high levels of microorganisms, adjusted for confounders, were observed for A. naeslundii I, Actinomyces gerencseriae, C. gingivalis, E. corrodens, C. concisus, Prevotella nigrescens, T. forsythia, and Dialister pneumosintes. CONCLUSION Detectable plasmatic HVL in individuals with HIV was associated with elevated levels of known periodontal pathogens, such as P. nigrescens, T. forsythia, and E. corrodens, as well as C. concisus, C. gingivalis, and D. pneumosintes in the subgingival biofilm.
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Affiliation(s)
- Viviane Tiago Pereira
- Department of Dental Clinics, Division of Graduate Periodontics, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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23
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Colombo AV, Barbosa GM, Higashi D, di Micheli G, Rodrigues PH, Simionato MRL. Quantitative detection of Staphylococcus aureus, Enterococcus faecalis and Pseudomonas aeruginosa in human oral epithelial cells from subjects with periodontitis and periodontal health. J Med Microbiol 2013; 62:1592-1600. [PMID: 23800598 DOI: 10.1099/jmm.0.055830-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Epithelial cells in oral cavities can be considered reservoirs for a variety of bacterial species. A polymicrobial intracellular flora associated with periodontal disease has been demonstrated in buccal cells. Important aetiological agents of systemic and nosocomial infections have been detected in the microbiota of subgingival biofilm, especially in individuals with periodontal disease. However, non-oral pathogens internalized in oral epithelial cells and their relationship with periodontal status are poorly understood. The purpose of this study was to detect opportunistic species within buccal and gingival crevice epithelial cells collected from subjects with periodontitis or individuals with good periodontal health, and to associate their prevalence with periodontal clinical status. Quantitative detection of total bacteria and Staphylococcus aureus, Pseudomonas aeruginosa and Enterococcus faecalis in oral epithelial cells was determined by quantitative real-time PCR using universal and species-specific primer sets. Intracellular bacteria were visualized by confocal microscopy and fluorescence in situ hybridization. Overall, 33% of cell samples from patients with periodontitis contained at least one opportunistic species, compared with 15% of samples from healthy individuals. E. faecalis was the most prevalent species found in oral epithelial cells (detected in 20.6% of patients with periodontitis, P = 0.03 versus healthy individuals) and was detected only in cells from patients with periodontitis. Quantitative real-time PCR showed that high levels of P. aeruginosa and S. aureus were present in both the periodontitis and healthy groups. However, the proportion of these species was significantly higher in epithelial cells of subjects with periodontitis compared with healthy individuals (P = 0.016 for P. aeruginosa and P = 0.047 for S. aureus). Although E. faecalis and P. aeruginosa were detected in 57% and 50% of patients, respectively, with probing depth and clinical attachment level ≥6 mm, no correlation was found with age, sex, bleeding on probing or the presence of supragingival biofilm. The prevalence of these pathogens in epithelial cells is correlated with the state of periodontal disease.
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Affiliation(s)
- Andrea V Colombo
- Institute of Biomedical Sciences, Department of Microbiology, University of São Paulo, São Paulo, Brazil
| | - Graziela M Barbosa
- Institute of Biomedical Sciences, Department of Microbiology, University of São Paulo, São Paulo, Brazil
| | - Daniela Higashi
- Institute of Biomedical Sciences, Department of Microbiology, University of São Paulo, São Paulo, Brazil
| | - Giorgio di Micheli
- School of Dentistry, Department of Periodontology, University of São Paulo, São Paulo, Brazil
| | - Paulo H Rodrigues
- Institute of Biomedical Sciences, Department of Microbiology, University of São Paulo, São Paulo, Brazil
| | - Maria Regina L Simionato
- Institute of Biomedical Sciences, Department of Microbiology, University of São Paulo, São Paulo, Brazil
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Gonçalves LS, Gonçalves BML, Fontes TV. Periodontal disease in HIV-infected adults in the HAART era: Clinical, immunological, and microbiological aspects. Arch Oral Biol 2013; 58:1385-96. [PMID: 23755999 DOI: 10.1016/j.archoralbio.2013.05.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 03/31/2013] [Accepted: 05/13/2013] [Indexed: 02/08/2023]
Abstract
The introduction of highly active antiretroviral therapy (HAART) has decreased the incidence and prevalence of several oral manifestations such as oral candidiasis, hairy leukoplakia, and Kaposi's sarcoma in HIV-infected patients. Regarding periodontal disease the findings are not clear. This disease represents a group of chronic oral diseases characterized by infection and inflammation of the periodontal tissues. These tissues surround the teeth and provide periodontal protection (the gingival tissue) and periodontal support (periodontal ligament, root cementum, alveolar bone). Clinical, immunological, and microbiological aspects of these diseases, such as linear gingival erythema (LGE), necrotizing periodontal diseases (NPD) (necrotizing ulcerative gingivitis [NUG], necrotizing ulcerative periodontitis [NUP] and necrotizing stomatitis), and chronic periodontitis, have been widely studied in HIV-infected individuals, but without providing conclusive results. The purpose of this review was to contribute to a better overall understanding of the probable impact of HIV-infection on the characteristics of periodontal infections.
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Abstract
Since the early 1990's, the death rate from AIDS among adults has declined in most developed countries, largely because of newer antiretroviral therapies and improved access to these therapies. In addition, from 2006 to 2011, the total number of new cases of HIV infection worldwide has declined somewhat and has remained relatively constant. Nevertheless, because of the large numbers of existing and new cases of HIV infection, the dental practitioner and other healthcare practitioners will still be required to treat oral and periodontal conditions unique to HIV/AIDS as well as conventional periodontal diseases in HIV-infected adults and children. The oral and periodontal conditions most closely associated with HIV infection include oral candidiasis, oral hairy leukoplakia, Kaposi's sarcoma, salivary gland diseases, oral warts, other oral viral infections, linear gingival erythema and necrotizing gingival and periodontal diseases. While the incidence and prevalence of these oral lesions and conditions appear to be declining, in part because of antiretroviral therapy, dental and healthcare practitioners will need to continue to diagnose and treat the more conventional periodontal diseases in these HIV-infected populations. Finding low-cost and easily accessible and acceptable diagnostic and treatment approaches for both the microbiological and the inflammatory aspects of periodontal diseases in these populations are of particular importance, as the systemic spread of the local microbiota and inflammatory products of periodontal diseases may have adverse effects on both the progression of HIV infection and the effectiveness of antiretroviral therapy approaches. Developing and assessing low-cost and accessible diagnostic and treatment approaches to periodontal diseases, particularly in developing countries, will require an internationally coordinated effort to design and conduct standardized clinical trials.
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Silva-Boghossian CM, Neves AB, Resende FAR, Colombo APV. Suppuration-associated bacteria in patients with chronic and aggressive periodontitis. J Periodontol 2013; 84:e9-e16. [PMID: 23327648 DOI: 10.1902/jop.2013.120639] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Suppuration (SUP) on probing may be an indication of active periodontal breakdown. The aim of the present study is to analyze which subgingival species are associated with SUP in patients with chronic (CP) and aggressive (AgP) periodontitis. METHODS A total of 156 patients with CP and 66 with AgP were submitted to full-mouth periodontal examination and subgingival biofilm sampling (14 sites/patient). The counts of 44 bacterial species were determined by checkerboard. Comparisons between groups and sites were analyzed by the Mann-Whitney and Wilcoxon tests, respectively. Associations between frequency of SUP and bacterial species were analyzed by the Spearman correlation coefficient. RESULTS The prevalence of SUP in patients with CP was 24.4%, and in patients with AgP it was 30.3%, and the percentage of SUP sites in the groups was 5.72% ± 1.06% and 6.96% ± 1.70%, respectively (P >0.05). SUP sites from patients with CP had significantly higher counts of Veillonella parvula, Dialister pneumosintes, Tannerella forsythia, and Prevotella nigrescens than SUP sites from patients with AgP (P <0.005). Significant positive correlations between high frequency of SUP and high levels of Actinomyces spp, Streptococcus spp., members of the orange complex, Acinetobacter baumannii, and Pseudomonas aeruginosa were observed in patients with CP (P <0.05). In patients with AgP, Actinomyces oris, Propionibacterium acnes, P. aeruginosa, Staphylococcus aureus, and Streptococcus sanguinis were positively associated with SUP, whereas Prevotella intermedia presented a negative association with SUP (P <0.05). CONCLUSIONS SUP sites from patients with CP harbored significantly higher counts of several periodontal species than SUP sites from patients with AgP. Actinomyces spp., Streptococcus spp., members of the orange complex, T. forsythia, and certain non-oral pathogens were associated with a high number of sites with SUP.
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Affiliation(s)
- Carina M Silva-Boghossian
- Department of Dental Clinics, Division of Graduate Periodontics, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil.
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BANA-Positive Plaque Samples Are Associated with Oral Hygiene Practices and Not CD4+ T Cell Counts in HIV-Positive Patients. Int J Dent 2012; 2012:157641. [PMID: 23258979 PMCID: PMC3509373 DOI: 10.1155/2012/157641] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 10/03/2012] [Accepted: 10/04/2012] [Indexed: 11/29/2022] Open
Abstract
Background. The “red complex” microorganisms, namely, Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia are considered as potential pathogens causing HIV-associated periodontal diseases. Moreover, it has been recognized that an association exists between CD4+ T cell counts and periodontal disease progression. Objective. To establish whether CD4+ T cell counts or oral hygiene plays a greater role in producing BANA-positive results in HIV-associated periodontal disease. Materials and Methods. One hundred and twenty HIV-positive patients participated in the study, and their CD4+ T cell counts were obtained from their medical records. The six Ramfjord teeth were used for evaluating periodontal clinical indices and subgingival plaque sampling. BANA test was used for the detection and prevalence of the “red complex” bacteria in plaque samples. Results. A majority of 69.17% HIV-positive patients were BANA-positive. No significant associations were found between BANA and CD4+ T cell counts. A highly significant association was found between BANA with probing depth and clinical attachment level (P ≤ 0.0001) and between BANA and the use of interdental aids (P = 0.0168). Conclusion. HIV-associated periodontal diseases are strongly related to oral hygiene practices rather than the effect of CD4+ T cell counts, and the use of interdental aids was marked as a significant predictor of BANA-negative plaque samples.
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Rams TE, Feik D, Mortensen JE, Degener JE, van Winkelhoff AJ. Antibiotic susceptibility of periodontal Enterococcus faecalis. J Periodontol 2012; 84:1026-33. [PMID: 23106507 DOI: 10.1902/jop.2012.120050] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Enterococcus faecalis may contribute to periodontal breakdown in heavily infected subgingival sites, particularly in patients responding poorly to mechanical forms of periodontal therapy. Because only limited data are available on the antimicrobial sensitivity of enterococci of subgingival origin, this study evaluates the in vitro antibiotic susceptibility of E. faecalis isolated from periodontitis patients in the United States. METHODS Pure cultures of 47 subgingival E. faecalis clinical isolates were each inoculated onto specially prepared broth microdilution susceptibility panels containing vancomycin, teicoplanin, and six oral antibiotics of potential use in periodontal therapy. After incubation in ambient air for 18 to 20 hours, minimal inhibitory drug concentrations were determined using applicable Clinical and Laboratory Standards Institute criteria and interpretative guidelines. The organisms were additionally evaluated for in vitro resistance to metronidazole at 4 μg/mL. RESULTS Periodontal E. faecalis exhibited substantial in vitro resistance to tetracycline (53.2% resistant), erythromycin (80.8% resistant or intermediate resistant), clindamycin (100% resistant to 2 μg/mL), and metronidazole (100% resistant to 4 μg/mL). In comparison, the clinical isolates were generally sensitive to ciprofloxacin (89.4% susceptible; 10.6% intermediate resistant) and 100% susceptible in vitro to ampicillin, amoxicillin/clavulanate, vancomycin, and teicoplanin. CONCLUSIONS Tetracycline, erythromycin, clindamycin, and metronidazole revealed poor in vitro activity against human subgingival E. faecalis clinical isolates, and would likely be ineffective therapeutic agents against these species in periodontal pockets. Among orally administered antibiotics, ampicillin, amoxicillin/clavulanate, and ciprofloxacin exhibited marked in vitro inhibitory activity against periodontal E. faecalis, and may be clinically useful in treatment of periodontal infections involving enterococci.
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Affiliation(s)
- Thomas E Rams
- Department of Periodontology and Oral Implantology, Oral Microbiology Testing Service Laboratory, Temple University School of Dentistry, Philadelphia, PA 19140, USA.
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Al-Ahmad A, Kürschner A, Weckesser S, Wittmer A, Rauberger H, Jakob T, Hellwig E, Kist M, Waidner B. Is Helicobacter pylori resident or transient in the human oral cavity? J Med Microbiol 2012; 61:1146-1152. [PMID: 22499779 DOI: 10.1099/jmm.0.043893-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Helicobacter pylori colonizes the stomachs of at least half of the world's human population. The role of the oral cavity in this colonization is not clear and there are, to date, no comprehensive data that clearly demonstrate the isolation of this bacterium from the oral cavity. The aim of this study was to evaluate the prevalence of H. pylori in the oral cavity of 15 patients who tested positive for H. pylori. A comprehensive dental examination of all patients was conducted. Samples were taken from supragingival and subgingival plaque, saliva, periapical exudates and tongue swabs. All samples were taken before the application of antibiotics. A total of 163 oral samples were investigated by PCR using two different H. pylori-specific primer pairs. A PCR inhibition control using a modified plasmid was always included for the most specific primer pair. In addition, a culture technique was used to confirm PCR results. Despite a PCR detection limit of 10(2) bacteria ml(-1), out of 14 patients, H. pylori could not be detected in any of the samples taken. In one patient, H. pylori-positive PCR signals were obtained in two samples using only one primer pair. H. pylori could not be cultivated from these two PCR-positive samples; therefore, no correlation to oral colonization status could be established. This study challenges the misleading preconception that H. pylori resides in the human oral cavity and suggests that this bacterium should be considered transient and independent of the oral status. To date, positive PCR results for H. pylori in the oral cavity have been overestimated and not critically interpreted in literature.
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Affiliation(s)
- A Al-Ahmad
- Department of Operative Dentistry and Periodontology, Albert-Ludwigs University, Freiburg, Germany
| | - A Kürschner
- Department of Operative Dentistry and Periodontology, Albert-Ludwigs University, Freiburg, Germany
| | - S Weckesser
- Department of Dermatology, University Medical Center Freiburg, Freiburg, Germany
| | - A Wittmer
- Institute for Medical Microbiology and Hygiene, Albert-Ludwigs University, Freiburg, Germany
| | - H Rauberger
- Department of Operative Dentistry and Periodontology, Albert-Ludwigs University, Freiburg, Germany
| | - T Jakob
- Department of Dermatology, University Medical Center Freiburg, Freiburg, Germany
| | - E Hellwig
- Department of Operative Dentistry and Periodontology, Albert-Ludwigs University, Freiburg, Germany
| | - M Kist
- Institute for Medical Microbiology and Hygiene, Albert-Ludwigs University, Freiburg, Germany
| | - B Waidner
- Institute for Medical Microbiology and Hygiene, Albert-Ludwigs University, Freiburg, Germany
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Brito LCN, Sobrinho APR, Teles RP, Socransky SS, Haffajee AD, Vieira LQ, Teles FRF. Microbiologic profile of endodontic infections from HIV- and HIV+ patients using multiple-displacement amplification and checkerboard DNA-DNA hybridization. Oral Dis 2012; 18:558-67. [PMID: 22335194 DOI: 10.1111/j.1601-0825.2012.01908.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To compare the microbiota of endodontic infections in necrotic pulp from HIV-negative and HIV-positive subjects. MATERIALS AND METHODS Root canal samples from necrotic pulp were collected from 40 HIV- and 20 HIV+ subjects. Pulps were amplified using multiple displacement amplification (MDA). Then, checkerboard DNA-DNA hybridization was employed to assess the levels of 107 microbial taxa. The percentage of DNA probe count and the percentage of teeth colonized by each test species were investigated. Significant differences between groups regarding proportions of taxa and prevalence of the test species were sought using the Mann-Whitney test and the Chi-square analysis, respectively. RESULTS The most prevalent taxa detected were Dialister pneumosintes, Stenotrophomonas maltophilia, Streptococcus sobrinus, Corynebacterium diphteriae, and Helicobacter pylori among HIV- subjects and D. pneumosintes, Prevotella tannerae, Porphyromonas gingivalis, Parvimonas micra, Prevotella nigrescens, and Corynebacterium diphtheriae among HIV+ individuals. D. pneumosintes, C. diphtheria, and C. albicans were the most abundant species in the HIV- group, whereas the predominant taxa in HIV+ samples were P. tannerae, D. pneumosintes and Olsenella uli. P. tannerae, O. uli, Veilonella dispar, Bacteroides fragilis, and Actinomyces meyeri were significantly more abundant in HIV+ samples. CONCLUSIONS There were significant differences in the prevalence and proportions of specific microbial taxa between HIV- and HIV+ individuals. The root canal microbiota may represent a reservoir of important oral and medical pathogens, mainly in HIV+ individuals.
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Affiliation(s)
- L C N Brito
- Department of Operative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
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Mori K, Morisaki H, Yajima S, Suzuki T, Ishikawa A, Nakamura N, Innami Y, Takeda J. Beta-1 blocker improves survival of septic rats through preservation of gut barrier function. Intensive Care Med 2011; 37:1849-56. [DOI: 10.1007/s00134-011-2326-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Accepted: 06/06/2011] [Indexed: 12/21/2022]
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Amaral CDSF, da Silva-Boghossian CM, Leão ATT, Colombo APV. Evaluation of the subgingival microbiota of alcoholic and non-alcoholic individuals. J Dent 2011; 39:729-38. [PMID: 21864643 DOI: 10.1016/j.jdent.2011.08.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Revised: 07/14/2011] [Accepted: 08/06/2011] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES The aim of this study was to evaluate the composition of the subgingival microbiota of alcoholic and non-alcoholic individuals. METHODS The study was conducted with 49 alcoholic and 49 non-alcoholic males of the Philippe Pinel Institute, Rio de Janeiro, Brazil. The subjects were selected by convenience and two criteria were used to diagnose alcohol dependence: the CAGE (cut-down, annoyed, guilt, eyes-opener) questionnaire and the International Statistical Classification of Diseases, 10th edition (WHO). Subgingival biofilm samples were obtained from 4 sites, 2 with probing depth (PD) ≥ 4 mm and 2 sites with PD < 4 mm. The presence and levels of 45 bacterial taxa were analysed using the checkerboard technique. RESULTS The prevalence of bacterial species was not significantly different between groups. However, alcoholics showed significantly higher mean counts of Aggregactibacter actinomycetemcomitans, Fusobacterium nucleatum nucleatum, and Porphyromonas gingivalis (adjusted p < 0.001). Moreover, alcoholics harboured significantly higher mean levels of Capnocytophaga sputigena, Fusobacterium nucleatum vincentii, F. nuc. nucleatum, Gemella morbillorum, Neisseria mucosa, P. gingivalis, Streptococcus gordonii, and Tannerella forsythia at sites with PD < 4 mm or ≥ 4 mm compared to non-alcoholics (p ≤ 0.001). Of interest, shallow sites of alcoholics presented significantly higher mean levels of F. nuc. vincentii, F. nuc nucleatum, P. gingivalis, and T. forsythia than sites with PD ≥ 4 mm of non-alcoholics (p ≤ 0.001). CONCLUSIONS Alcoholics and non-alcoholics present a diverse and complex microbiota; however, alcoholics harbour significantly higher levels of periodontopathic species in the subgingival microbiota than non-alcoholics.
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Nair RG, Owotade FJ, Leao JC, Hegarty AM, Hodgson TA. Coinfections associated with human immunodeficiency virus infection: workshop 1A. Adv Dent Res 2011; 23:97-105. [PMID: 21441489 DOI: 10.1177/0022034511399916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The importance of opportunistic pathogens in HIV disease has been demonstrated from the onset of the epidemic. This workshop aimed to review the evidence for the role of oral microorganisms in HIV-related periodontal disease and HIV transmission and the effect of HIV therapy on periodontal disease. Despite being a common copathogen, tuberculosis seems to have limited oral presentation. The oral manifestations seem to have little impact on the individual and, once diagnosed, are responsive to chemotherapy. The participants debated the available evidence on the role of microorganisms and whether further research was warranted and justified. Although the effects of lipodystrophy on facial aesthetics may be profound and may markedly affect quality of life, there is no evidence to suggest a direct effect on the oral cavity. Though of interest to oral health care workers, lipodystrophy and associated metabolic syndromes were thought to be further investigated by other, more appropriate groups.
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Affiliation(s)
- R G Nair
- Oral Medicine, School of Dentistry and Oral Health, Griffith University, Gold Coast, Australia
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da Silva-Boghossian CM, do Souto RM, Luiz RR, Colombo APV. Association of red complex, A. actinomycetemcomitans and non-oral bacteria with periodontal diseases. Arch Oral Biol 2011; 56:899-906. [PMID: 21397893 DOI: 10.1016/j.archoralbio.2011.02.009] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Revised: 01/25/2011] [Accepted: 02/11/2011] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Pathogens related to systemic infections have been detected in the periodontal microbiota. The relationship amongst these pathogens, periodontal bacteria and periodontal clinical status is poorly understood. This study evaluated the association amongst red complex, A. actinomycetemcomitans (A.a) and non-oral pathogenic bacteria in subjects with good periodontal health (PH), gingivitis (G), chronic (CP) and aggressive (AP) periodontitis. METHODS Subgingival biofilm samples were obtained from 51 PH, 42 G, 219 CP and 90 AP subjects. The presence and levels of A.a, red complex (Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola), Acinetobacter baumannii, Escherichia coli, Enterococcus faecalis, Pseudomonas aeruginosa, and Staphylococcus aureus were determined by DNA probes and DNA-DNA hybridization technique. RESULTS CP and AP subjects presented significantly higher prevalence and levels of A.a, red complex and A. baumannii than G and PH individuals (p<0.01), whereas S. aureus was detected in lower frequency and counts in AP as compared to the other groups (p<0.001). The predictor variables age, prevalence of red complex, and the presence of A. baumannii and P. aeruginosa were strongly associated with the frequency of sites with PD and CAL ≥5 mm. Increasing age (OR 1.08), high frequency of red complex (OR 6.10), and the presence of A.a with P. aeruginosa (OR 1.90) were associated with periodontal disease (p<0.001). Subjects harbouring a high prevalence of A.a, A. baumannii, and red complex with P. aeruginosa were more likely to have AP than CP (p<0.001). CONCLUSION Putative periodontal pathogens and non-oral bacteria alone or in association were strongly associated with periodontitis.
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Abstract
The oral cavity of the hospitalized or bedridden elderly is often a reservoir for opportunistic pathogens associated with respiratory diseases. Commensal flora and the host interact in a balanced fashion and oral infections are considered to appear following an imbalance in the oral resident microbiota, leading to the emergence of potentially pathogenic bacteria. The definition of the process involved in colonization by opportunistic respiratory pathogens needs to elucidate the factors responsible for the transition of the microbiota from commensal to pathogenic flora. The regulatory factors influencing the oral ecosystem can be divided into three major categories: the host defense system, commensal bacteria, and external pathogens. In this article, we review the profile of these categories including the intricate cellular interaction between immune factors and commensal bacteria and the disturbance in homeostasis in the oral cavity of hospitalized or bedridden elderly, which facilitates oral colonization by opportunistic respiratory pathogens.
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Affiliation(s)
- Akio Tada
- Department of Oral Health, National Institute of Public Health, Wako, Saitama, Japan.
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Mataftsi M, Skoura L, Sakellari D. HIV infection and periodontal diseases: an overview of the post-HAART era. Oral Dis 2010; 17:13-25. [DOI: 10.1111/j.1601-0825.2010.01727.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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