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Safika S, Indrawati A, Afiff U, Hastuti YT, Zureni Z, Jati AP. First Study on profiling of gut microbiome in wild and captive Sumatran orangutans ( Pongo abelii). Vet World 2023; 16:717-727. [PMID: 37235163 PMCID: PMC10206964 DOI: 10.14202/vetworld.2023.717-727] [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: 11/08/2022] [Accepted: 02/27/2023] [Indexed: 05/28/2023] Open
Abstract
Background and Aim Orangutans are an "umbrella species" for conserving tropical forests in Sumatra and Kalimantan. There are remarkable changes between the gut microbiomes of wild and captive Sumatran orangutans. This study aimed to profile gut microbiota of wild and captive Sumatran orangutans. Materials and Methods Nine fecal samples collected from wild orangutans and nine fecal samples collected from captive orangutans were divided into three replicates. Each replicate randomly combined three pieces and were analyzed on the Illumina platform. A bioinformatics study of 16S rRNA according to Qiime2 (Version 2021.4) and microbiome profiling analysis was conducted. Results The relative abundance of different microbial taxa varied significantly between wild and captive Sumatran orangutans. Among the operational taxonomic units, various proportions of Firmicutes, Proteobacteria, Bacteroidetes, Euryarchaeota, Acidobacteria, Actinobacteria and Verrucomicrobia predominated. Solobacterium was found only in 19% of captive orangutans. Methanobrevibacter was identified to be prevalent among wild orangutans (16%). Analysis of the core microbiome from the combined wild and captive data revealed seven species as cores. According to linear discriminant analysis effect size, Micrococcus luteus, Bacteroidescaccae, Lachnospiraceae bacterium, Ruthenibacterium lactatiformans, Haemophilus haemolyticus, and Chishuiella spp. were microbiome biomarkers in captive orangutans, whereas Roseburia inulinivorans, Collinsella aerofaciens, Oscillibacter spp., and Eubacterium hallii were microbiome biomarkers in wild orangutans. Conclusion There were differences in the microbiome biomarkers of wild and captive Sumatran orangutans. This study is important for understanding the role of gut bacteria in the health of Sumatran orangutans.
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Affiliation(s)
- Safika Safika
- Division of Medical Microbiology, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, Indonesia
| | - Agustin Indrawati
- Division of Medical Microbiology, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, Indonesia
| | - Usamah Afiff
- Division of Medical Microbiology, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, Indonesia
| | | | - Zureni Zureni
- Class II Agricultural Quarantine Center Medan, Indonesia
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2
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Pignatelli P, Romei FM, Bondi D, Giuliani M, Piattelli A, Curia MC. Microbiota and Oral Cancer as A Complex and Dynamic Microenvironment: A Narrative Review from Etiology to Prognosis. Int J Mol Sci 2022; 23:ijms23158323. [PMID: 35955456 PMCID: PMC9368704 DOI: 10.3390/ijms23158323] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 11/23/2022] Open
Abstract
A complex balanced equilibrium of the bacterial ecosystems exists in the oral cavity that can be altered by tobacco smoking, psychological stressors, bad dietary habit, and chronic periodontitis. Oral dysbiosis can promote the onset and progression of oral squamous cell carcinoma (OSCC) through the release of toxins and bacterial metabolites, stimulating local and systemic inflammation, and altering the host immune response. During the process of carcinogenesis, the composition of the bacterial community changes qualitatively and quantitatively. Bacterial profiles are characterized by targeted sequencing of the 16S rRNA gene in tissue and saliva samples in patients with OSCC. Capnocytophaga gingivalis, Prevotella melaninogenica, Streptococcus mitis, Fusobacterium periodonticum, Prevotella tannerae, and Prevotella intermedia are the significantly increased bacteria in salivary samples. These have a potential diagnostic application to predict oral cancer through noninvasive salivary screenings. Oral lactic acid bacteria, which are commonly used as probiotic therapy against various disorders, are valuable adjuvants to improve the response to OSCC therapy.
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Affiliation(s)
- Pamela Pignatelli
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Via Caserta 6, 00161 Rome, Italy
- Correspondence:
| | - Federica Maria Romei
- Department of Medical, Oral and Biotechnological Sciences, “G. d’Annunzio” University of Chieti-Pescara, Via dei Vestini, 66100 Chieti, Italy; (F.M.R.); (M.C.C.)
| | - Danilo Bondi
- Department of Neuroscience, Imaging and Clinical Sciences, “G. d’Annunzio” University of Chieti-Pescara, Via dei Vestini, 66100 Chieti, Italy;
| | - Michele Giuliani
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy;
| | - Adriano Piattelli
- School of Dentistry, Saint Camillus International University for Health Sciences (Unicamillus), 00131 Rome, Italy;
- Fondazione Villa Serena per la Ricerca, 65013 Città Sant’Angelo, Italy
- Casa di Cura Villa Serena, 65013 Città Saint’Angelo, Italy
| | - Maria Cristina Curia
- Department of Medical, Oral and Biotechnological Sciences, “G. d’Annunzio” University of Chieti-Pescara, Via dei Vestini, 66100 Chieti, Italy; (F.M.R.); (M.C.C.)
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3
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Molino S, Lerma-Aguilera A, Jiménez-Hernández N, Rufián Henares JÁ, Francino MP. Evaluation of the Effects of a Short Supplementation With Tannins on the Gut Microbiota of Healthy Subjects. Front Microbiol 2022; 13:848611. [PMID: 35572677 PMCID: PMC9093706 DOI: 10.3389/fmicb.2022.848611] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/14/2022] [Indexed: 12/02/2022] Open
Abstract
Western diet, high in fats and sugars and low in greens, contributes to dysbiosis of the gut microbiota, which can lead to a variety of chronic diseases related with inflammation. Supplementation with bioactive compounds can help to maintain a healthy eubiotic state. Thus, we performed a 4-weeks nutritional intervention on healthy volunteers to investigate whether a blend of natural tannin extracts could induce healthy changes in the microbial intestinal ecosystem. Changes in the composition and functionality of the microbiota could be observed from the first two weeks onward. 16S rRNA amplicon next-generation sequencing (NGS) revealed a significant increase in microbial diversity at the end of the intervention, as well as trends toward increases in the relative abundances of several beneficial taxa, such as Ruminococcus bicirculans, Faecalibacterium prausnitzii, Lachnospiraceae UCG 010, Lachnospiraceae NK4A136, Bacteroides thetaiotaomicron and B. uniformis. Remarkably, some of the identified taxa were also identified as responsible for an increase in the production of short-chain fatty acids (SCFAs), microbial metabolites that contribute to the modulation of the immune system and have various other anti-inflammatory functions in the gut. Taken together, these results suggest that the tannin supplementation could exert a prebiotic effect by selectively stimulating the growth and the activity of bacteria that are advantageous for the host.
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Affiliation(s)
- Silvia Molino
- Departamento de Nutrición y Bromatología, Instituto de Nutrición y Tecnología de los Alimentos, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain
| | - Alberto Lerma-Aguilera
- Area de Genòmica i Salut, Fundació per al Foment de la Investigació Sanitària i Biomèdica de la Comunitat Valenciana (FISABIO-Salut Pública), València, Spain
| | - Nuria Jiménez-Hernández
- Area de Genòmica i Salut, Fundació per al Foment de la Investigació Sanitària i Biomèdica de la Comunitat Valenciana (FISABIO-Salut Pública), València, Spain
- CIBER en Epidemiología y Salud Pública, Madrid, Spain
| | - José Ángel Rufián Henares
- Departamento de Nutrición y Bromatología, Instituto de Nutrición y Tecnología de los Alimentos, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.Granada, Granada, Spain
| | - M. Pilar Francino
- Area de Genòmica i Salut, Fundació per al Foment de la Investigació Sanitària i Biomèdica de la Comunitat Valenciana (FISABIO-Salut Pública), València, Spain
- CIBER en Epidemiología y Salud Pública, Madrid, Spain
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4
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Bachtiar BM, Soeroso Y, Sunarto H, Maitimu FC, Bachtiar EW. Relationships between Solobacterium moorei and Prevotella intermedia in subgingival microbiota of periodontitis patients with halitosis: A preliminary study using qPCR. Saudi Dent J 2022; 34:211-219. [PMID: 35935717 PMCID: PMC9346948 DOI: 10.1016/j.sdentj.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 01/28/2022] [Accepted: 02/08/2022] [Indexed: 10/31/2022] Open
Abstract
Objective Material & methods Results Conclusion
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5
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Yang K, Wang Y, Zhang S, Zhang D, Hu L, Zhao T, Zheng H. Oral Microbiota Analysis of Tissue Pairs and Saliva Samples From Patients With Oral Squamous Cell Carcinoma - A Pilot Study. Front Microbiol 2021; 12:719601. [PMID: 34712209 PMCID: PMC8546327 DOI: 10.3389/fmicb.2021.719601] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 09/23/2021] [Indexed: 12/24/2022] Open
Abstract
Oral microbiota dysbiosis is associated with the occurrence and progression of oral cancer. To investigate the association between the microbiota and risk of oral squamous cell carcinoma (OSCC), we identified the microbial composition of paired tumor (TT)/normal paracancerous tissues (NPT) and saliva (TS) samples in OSCC patients through 16S rRNA gene sequencing. A total of 22 phyla, 321 genera, and 869 species were identified in the oral samples. Paired comparisons revealed significant differences between TT, NPT, and TS groups, with the genus Filifactor significantly enriched in TT. The phylum Actinobacteria; genus Veillonella; and species Granulicatella adiacens, Streptococcus sanguinis, and Veillonella rogosae were significantly enriched in NPT, while the phylum Bacteroidetes; genera Capnocytophaga, Haemophilus, and Prevotella; and seven species, including Capnocytophaga sp., Haemophilus sp., and Neisseria sp., were significantly enriched in TS. In TTs, the abundance of Prevotella intermedia was profoundly higher in the gingiva, while Capnocytophaga gingivalis and Rothia mucilaginosa were enriched in the lining mucosa and tongue. Increasing in abundance from the early tumor stage to the late stage, Solobacterium moorei in TT and Campylobacter sp. strain HMT 044 in TS were positively correlated with OSCC development, suggesting that bacteria were selected by different microenvironments. The correlation between 11 microbial species and 17 pathway abundances was revealed, indicating the potential function of low-abundance bacteria. Overall, our analysis revealed that multiple oral bacterial taxa are associated with a subsequent risk of OSCC and may be used as biomarkers for risk prediction and intervention in oral cancers.
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Affiliation(s)
- Ke Yang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Health Management Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yuezhu Wang
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Fudan University, Shanghai, China.,Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai and Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Shizhou Zhang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Dongsheng Zhang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Lihua Hu
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Tengda Zhao
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Huajun Zheng
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Fudan University, Shanghai, China
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de Molla VC, Heidrich V, Bruno JS, Knebel FH, Miranda-Silva W, Asprino PF, Tucunduva L, Rocha V, Novis Y, Camargo AA, Fregnani ER, Arrais-Rodrigues C. Disruption of the oral microbiota is associated with a higher risk of relapse after allogeneic hematopoietic stem cell transplantation. Sci Rep 2021; 11:17552. [PMID: 34475459 PMCID: PMC8413296 DOI: 10.1038/s41598-021-96939-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 08/11/2021] [Indexed: 02/07/2023] Open
Abstract
Intestinal microbiota (IM) diversity and composition regulates host immunity and affects outcomes after allogeneic stem cell transplantation (allo-HSCT). We evaluated if the oral mucosa microbiota (OM) could impact the outcomes in patients who underwent allo-HSCT. Samples from the oral mucosa of 30 patients were collected at three time points: before the conditioning regimen, at aplasia, and at engraftment. We analyzed the associations of OM diversity and composition with allo-HSCT outcomes. Lower OM diversity at preconditioning was associated with a higher risk of relapse at 3 years (68% versus 33%, respectively; P = 0.04). Dominance (relative abundance ≥ 30%) by a single genus at preconditioning was also associated with a higher risk of relapse (63% versus 36% at 3 years, respectively; P = 0.04), as well as worse progression-free survival (PFS; 19% versus 55%, respectively; P = 0.01), and overall survival (OS) at 3 years (38% versus 81%, respectively; P = 0.02). In our study we observed that OM dysbiosis is associated with a higher risk of relapse and worse survival after allo-HSCT.
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Affiliation(s)
- Vinícius Campos de Molla
- Centro de Oncologia, Hospital Sírio Libanês, Rua Dona Adma Jafet, 91, São Paulo, SP, 01308-050, Brazil
- Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Vitor Heidrich
- Centro de Oncologia Molecular, Hospital Sírio Libanês, São Paulo, SP, Brazil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil
| | | | | | | | | | - Luciana Tucunduva
- Centro de Oncologia, Hospital Sírio Libanês, Rua Dona Adma Jafet, 91, São Paulo, SP, 01308-050, Brazil
| | - Vanderson Rocha
- Centro de Oncologia, Hospital Sírio Libanês, Rua Dona Adma Jafet, 91, São Paulo, SP, 01308-050, Brazil
- Hospital das Clínicas da Faculdade de Medicina, Universidade de São Paulo/ICESP, Sao Paulo, Brazil
- Churchill Hospital, NHS-BT, Oxford, UK
| | - Yana Novis
- Centro de Oncologia, Hospital Sírio Libanês, Rua Dona Adma Jafet, 91, São Paulo, SP, 01308-050, Brazil
| | | | | | - Celso Arrais-Rodrigues
- Centro de Oncologia, Hospital Sírio Libanês, Rua Dona Adma Jafet, 91, São Paulo, SP, 01308-050, Brazil.
- Universidade Federal de São Paulo, São Paulo, SP, Brazil.
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7
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Lee L, Samardzic K, Wallach M, Frumkin LR, Mochly-Rosen D. Immunoglobulin Y for Potential Diagnostic and Therapeutic Applications in Infectious Diseases. Front Immunol 2021; 12:696003. [PMID: 34177963 PMCID: PMC8220206 DOI: 10.3389/fimmu.2021.696003] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/26/2021] [Indexed: 01/14/2023] Open
Abstract
Antiviral, antibacterial, and antiparasitic drugs and vaccines are essential to maintaining the health of humans and animals. Yet, their production can be slow and expensive, and efficacy lost once pathogens mount resistance. Chicken immunoglobulin Y (IgY) is a highly conserved homolog of human immunoglobulin G (IgG) that has shown benefits and a favorable safety profile, primarily in animal models of human infectious diseases. IgY is fast-acting, easy to produce, and low cost. IgY antibodies can readily be generated in large quantities with minimal environmental harm or infrastructure investment by using egg-laying hens. We summarize a variety of IgY uses, focusing on their potential for the detection, prevention, and treatment of human and animal infections.
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Affiliation(s)
- Lucia Lee
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Kate Samardzic
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Michael Wallach
- School of Life Sciences, University of Technology, Sydney, NSW, Australia
| | | | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
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8
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Alauzet C, Aujoulat F, Lozniewski A, Ben Brahim S, Domenjod C, Enault C, Lavigne JP, Marchandin H. A New Look at the Genus Solobacterium: A Retrospective Analysis of Twenty-Seven Cases of Infection Involving S. moorei and a Review of Sequence Databases and the Literature. Microorganisms 2021; 9:microorganisms9061229. [PMID: 34198943 PMCID: PMC8229177 DOI: 10.3390/microorganisms9061229] [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: 05/12/2021] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 12/18/2022] Open
Abstract
Solobacterium moorei is an anaerobic Gram-positive bacillus present within the oral and the intestinal microbiota that has rarely been described in human infections. Besides its role in halitosis and oral infections, S. moorei is considered to be an opportunistic pathogen causing mainly bloodstream and surgical wound infections. We performed a retrospective study of 27 cases of infections involving S. moorei in two French university hospitals between 2006 and 2021 with the aim of increasing our knowledge of this unrecognized opportunistic pathogen. We also reviewed all the data available in the literature and in genetic and metagenomic sequence databases. In addition to previously reported infections, S. moorei had been isolated from various sites and involved in intra-abdominal, osteoarticular, and cerebral infections more rarely or not previously reported. Although mostly involved in polymicrobial infections, in seven cases, it was the only pathogen recovered. Not included in all mass spectrometry databases, its identification can require 16S rRNA gene sequencing. High susceptibility to antibiotics (apart from rifampicin, moxifloxacin, and clindamycin; 91.3%, 11.8%, and 4.3% of resistant strains, respectively) has been noted. Our global search strategy revealed S. moorei to be human-associated, widely distributed in the human microbiota, including the vaginal and skin microbiota, which may be other sources for infection in addition to the oral and gut microbiota.
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Affiliation(s)
- Corentine Alauzet
- Laboratoire SIMPA Stress Immunité Pathogènes EA 7300, Université de Lorraine, & Service de Microbiologie, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France; (C.A.); (A.L.)
| | - Fabien Aujoulat
- HydroSciences Montpellier, CNRS, IRD, Université de Montpellier, 34093 Montpellier, France;
| | - Alain Lozniewski
- Laboratoire SIMPA Stress Immunité Pathogènes EA 7300, Université de Lorraine, & Service de Microbiologie, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France; (C.A.); (A.L.)
| | - Safa Ben Brahim
- Service de Microbiologie, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France;
| | - Chloé Domenjod
- Service de Microbiologie et Hygiène Hospitalière, CHU de Nîmes, 30029 Nîmes, France; (C.D.); (C.E.)
| | - Cécilia Enault
- Service de Microbiologie et Hygiène Hospitalière, CHU de Nîmes, 30029 Nîmes, France; (C.D.); (C.E.)
| | - Jean-Philippe Lavigne
- VBIC, INSERM U1047, Université de Montpellier, Service de Microbiologie et Hygiène Hospitalière, CHU Nîmes, 30029 Nîmes, France;
| | - Hélène Marchandin
- HydroSciences Montpellier, CNRS, IRD, Université de Montpellier, Service de Microbiologie et Hygiène Hospitalière, CHU de Nîmes, 30029 Nîmes, France
- Correspondence:
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9
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Foo LH, Balan P, Pang LM, Laine ML, Seneviratne CJ. Role of the oral microbiome, metabolic pathways, and novel diagnostic tools in intra-oral halitosis: a comprehensive update. Crit Rev Microbiol 2021; 47:359-375. [PMID: 33653206 DOI: 10.1080/1040841x.2021.1888867] [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] [Indexed: 02/08/2023]
Abstract
Halitosis or oral malodor is one of the most common reasons for the patients' visit to the dental clinic, ranking behind only dental caries and periodontitis. In the present times, where social and professional communications are becoming unavoidable, halitosis has become a concern of growing importance. Oral malodor mostly develops due to the putrefaction of substrates by the indigenous bacterial populations. Although culture-based studies have provided adequate information on halitosis, the high throughput omics technologies have amplified the resolution at which oral microbial community can be examined and has led to the detection of a broader range of taxa associated with intra-oral halitosis (IOH). These microorganisms are regulated by the interactions of their ecological processes. Thus to develop effective treatment strategies, it is important to understand the microbial basis of halitosis. In the current review, we provide an update on IOH in context to the role of the oral microbiome, metabolic pathways involved, and novel diagnostic tools, including breathomics. Understanding oral microbiota associated with halitosis from a broader ecological perspective can provide novel insights into one's oral and systemic health. Such information can pave the way for the emergence of diagnostic tools that can revolutionize the early detection of halitosis and various associated medical conditions.
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Affiliation(s)
- Lean Heong Foo
- Department of Restorative Dentistry, Periodontic Unit, National Dental Centre Singapore, Singapore, Singapore.,Oral Health ACP, Duke NUS Medical School, Singapore, Singapore
| | - Preethi Balan
- Oral Health ACP, Duke NUS Medical School, Singapore, Singapore.,Singapore Oral Microbiomics Initiative (SOMI), National Dental Research Institute Singapore (NDRIS), National Dental Centre Singapore, Singapore, Singapore
| | - Li Mei Pang
- Singapore Oral Microbiomics Initiative (SOMI), National Dental Research Institute Singapore (NDRIS), National Dental Centre Singapore, Singapore, Singapore
| | - Marja L Laine
- Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University, Amsterdam, The Netherlands
| | - Chaminda Jayampath Seneviratne
- Oral Health ACP, Duke NUS Medical School, Singapore, Singapore.,Singapore Oral Microbiomics Initiative (SOMI), National Dental Research Institute Singapore (NDRIS), National Dental Centre Singapore, Singapore, Singapore
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10
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Stephenson T, Lee K, Griffith JE, McLelland DJ, Wilkes A, Bird PS, Trott DJ, Speight KN, Hemmatzadeh F, Woolford L. Pulmonary Actinomycosis in South Australian Koalas ( Phascolarctos cinereus). Vet Pathol 2021; 58:416-422. [PMID: 33461422 DOI: 10.1177/0300985820973459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Pneumonia has been reported in both free-ranging and captive koalas and a number of causative agents have been described. Between 2016 and 2019, 16 free-ranging and 1 captive koala (Phascolarctos cinereus) from the Mount Lofty Ranges of South Australia were identified with pyogranulomatous lobar pneumonia, which involved the left caudal lobe in 14/17 (82%) cases. Within lesions, numerous gram-positive or gram-variable, non-acid-fast filamentous bacteria were observed in association with Splendore-Hoeppli phenomenon. Culture yielded growth of anaerobic bacteria, which were unidentifiable by MALDI-TOF-MS (matrix-assisted laser desorption ionization-time of flight mass spectrometry) analysis in 5/5 cases. Sequencing of the bacterial 16S rRNA gene identified a novel Actinomyces species in 4 samples, confirming a diagnosis of pulmonary actinomycosis. Concurrent examination of resin lung casts from healthy koalas suggested greater laminar flow of air to the left caudal lung lobe in koalas. Actinomyces spp. have been reported as commensals of the oral microbiome in other species, and an association with similar pulmonary lesions in other species. Considering the predilection for involvement of the left caudal lung lobe, aspiration is suggested as the likely cause in some cases of pulmonary actinomycosis in koalas. Pulmonary actinomycosis has not been previously described in koalas and further work needs to be undertaken in order to classify this organism within the Actinomyces genus.
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Affiliation(s)
| | - Ken Lee
- University of Adelaide, Adelaide, South Australia, Australia
| | | | - David J McLelland
- University of Adelaide, Adelaide, South Australia, Australia.,Adelaide Zoo, ZoosSA, Adelaide, South Australia, Australia
| | - Anthony Wilkes
- University of Adelaide, Adelaide, South Australia, Australia
| | - Philip S Bird
- The University of Queensland, Gatton, Queensland, Australia
| | - Darren J Trott
- University of Adelaide, Adelaide, South Australia, Australia
| | | | | | - Lucy Woolford
- University of Adelaide, Adelaide, South Australia, Australia
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11
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Differences in the bacteriome of swab, saliva, and tissue biopsies in oral cancer. Sci Rep 2021; 11:1181. [PMID: 33441939 PMCID: PMC7806708 DOI: 10.1038/s41598-020-80859-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 12/22/2020] [Indexed: 12/15/2022] Open
Abstract
Microbial dysbiosis has been implicated in the pathogenesis of oral cancer. We analyzed the compositional and metabolic profile of the bacteriome in three specific niches in oral cancer patients along with controls using 16SrRNA sequencing (Illumina Miseq) and DADA2 software. We found major differences between patients and control subjects. Bacterial communities associated with the tumor surface and deep paired tumor tissue differed significantly. Tumor surfaces carried elevated abundances of taxa belonging to genera Porphyromonas, Enterobacteriae, Neisseria, Streptococcus and Fusobacteria, whereas Prevotella, Treponema, Sphingomonas, Meiothermus and Mycoplasma genera were significantly more abundant in deep tissue. The most abundant microbial metabolic pathways were those related to fatty-acid biosynthesis, carbon metabolism and amino-acid metabolism on the tumor surface: carbohydrate metabolism and organic polymer degradation were elevated in tumor tissues. The bacteriome of saliva from patients with oral cancer differed significantly from paired tumor tissue in terms of community structure, however remained similar at taxonomic and metabolic levels except for elevated abundances of Streptococcus, Lactobacillus and Bacteroides, and acetoin-biosynthesis, respectively. These shifts to a pro-inflammatory profile are consistent with other studies suggesting oncogenic properties. Importantly, selection of the principal source of microbial DNA is key to ensure reliable, reproducible and comparable results in microbiome studies.
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12
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Barrak I, Stájer A, Gajdács M, Urbán E. Small, but smelly: the importance of Solobacterium moorei in halitosis and other human infections. Heliyon 2020; 6:e05371. [PMID: 33163658 PMCID: PMC7610269 DOI: 10.1016/j.heliyon.2020.e05371] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/25/2020] [Accepted: 10/26/2020] [Indexed: 12/21/2022] Open
Abstract
Solobacterium moorei (S. moorei) has been described as Gram-positive, non spore forming, obligate anaerobic bacillus from human feces. The traditional culture and identification of these strains is very difficult (as the strains are often not cultivable or they grow only relatively slowly, in addition to producing only a very few positive biochemical reactions in commercially available identification kits); thus, reliable identification may only be carried out using methods, such as matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and DNA sequencing. Regarding its pathogenic role, the relevance of S. moorei in halitosis (oral malodor) has a good standing, as it has been suggested by multiple studies, while the isolation of these bacteria from invasive infections is very rare; there are only a few reports available in the literature, regarding infections outside the oral cavity. Based on these reports, affected patients are predominantly characterized compromised immunity and are frequently associated with a dental focus of infection. The aim of our present review is to summarize the currently available knowledge on the pathogenic role of S. moorei in halitosis and other infections and to emphasize the relevance of this neglected anaerobic pathogen.
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Affiliation(s)
- Ibrahim Barrak
- Department of Prosthodontics, Faculty of Dentistry, University of Szeged, Tiszta Lajos körút 62-64, 6720 Szeged, Hungary
| | - Anette Stájer
- Department of Prosthodontics, Faculty of Dentistry, University of Szeged, Tiszta Lajos körút 62-64, 6720 Szeged, Hungary
| | - Márió Gajdács
- Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, 6720 Szeged, Eötvös utca 6, Hungary
- Institute of Microbiology, Faculty of Medicine, Semmelweis University, 1089 Budapest, Nagyvárad tér 4, Hungary
| | - Edit Urbán
- Department of Medical Microbiology and Immunology, University of Pécs Medical School, 7624 Pécs, Szigeti út 12, Hungary
- Institute of Translational Medicine, University of Pécs Medical School, 7624 Pécs, Szigeti út 12, Hungary
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Ye W, Zhang Y, He M, Zhu C, Feng XP. Relationship of tongue coating microbiome on volatile sulfur compounds in healthy and halitosis adults. J Breath Res 2019; 14:016005. [DOI: 10.1088/1752-7163/ab47b4] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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14
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Liu WJ, Xiao M, Yi J, Li Y, Kudinha T, Xu YC. First case report of bacteremia caused by Solobacterium moorei in China, and literature review. BMC Infect Dis 2019; 19:730. [PMID: 31429713 PMCID: PMC6700775 DOI: 10.1186/s12879-019-4359-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 08/06/2019] [Indexed: 12/15/2022] Open
Abstract
Background Solobacterium moorei, the only species in the genus Solobacterium, is a Gram-positive, non-spore-forming, strict anaerobic, short to long bacillus. It has rarely been documented to cause blood stream infections. Here we report the first case of bacteremia caused by S.moorei in China. Case presentation A 61-year-old male presented to Peking Union Medical College Hospital (Beijing) with thrombotic thrombocytopenic purpura (TTP) and several other underlying diseases. He also had persistent coma accompanied by intermittent convulsions, halitosis, and intermittent fever. Blood cultures taken when the patient had a high fever were positive, with the anaerobic bottle yielding an organism identified as S.moorei by 16S rRNA gene sequencing, whilst the aerobic bottle grew Streptococcus mitis. After replacement of venous pipeline, and empirical use of vancomycin and meropenem, the patient’s body temperature and white blood cell count returned to normal. Unfortunately, the patient died of severe TTP. Conclusion This is the first case report of S. moorei isolation from blood stream in China. 16S rRNA gene sequencing is the only method that can identify S. moorei. Blood cultures must be taken before administration of antibiotics, and anaerobic culture should be considered for such rare pathogens in patients with oral diseases and immune deficiency.
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Affiliation(s)
- Wen-Jing Liu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
| | - Meng Xiao
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
| | - Jie Yi
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
| | - Ying Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
| | - Timothy Kudinha
- Charles Sturt University, Leeds Parade, Orange, Sydney, NSW, Australia.,Centre for Infectious Diseases and Microbiology LaboratoryServices, ICPMR-Pathology West, Westmead Hospital, Westmead, NSW, Australia
| | - Ying-Chun Xu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China. .,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China.
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Li Y, Jiang X, Hao J, Zhang Y, Huang R. Tea polyphenols: application in the control of oral microorganism infectious diseases. Arch Oral Biol 2019; 102:74-82. [PMID: 30974380 DOI: 10.1016/j.archoralbio.2019.03.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/16/2019] [Accepted: 03/28/2019] [Indexed: 02/05/2023]
Abstract
One of the most popular drinks worldwide, tea is rich in polyphenols and is beneficial to our health because it contributes to the prevention of many diseases. In the human oral cavity, there are more than 750 different species of bacteria living together within dental plaque. Some of the bacteria are pathogens that contribute to the development of oral diseases such as dental caries, periodontitis, pulpitis, mucosal disease, or halitosis through their virulence factors and their metabolites. Until now, many studies have reported that tea polyphenols (TPs) have evident inhibitory effects on some oral pathogenic microorganisms by suppressing pivotal steps of their pathogenic processes. The aim of this review is to summarize the effectiveness and mechanisms of TPs in inhibiting microorganisms, so as to provide new ideas for the prevention and treatment of oral diseases, and to contribute to the global dental public health.
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Affiliation(s)
- Yuan Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaoge Jiang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jianqi Hao
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Yifei Zhang
- School of Stomatology, Peking University, Beijing, China
| | - Ruijie Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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16
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Pham TAV, Nguyen NTX. Efficacy of chlorine dioxide mouthwash in reducing oral malodor: A 2-week randomized, double-blind, crossover study. Clin Exp Dent Res 2018; 4:206-215. [PMID: 30386642 PMCID: PMC6203824 DOI: 10.1002/cre2.131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/14/2018] [Accepted: 08/19/2018] [Indexed: 11/17/2022] Open
Abstract
The aim of this clinical trial was to assess the inhibitory effects of a mouthwash containing 0.1% ClO2 used for 2 weeks on oral malodor, periodontal and salivary parameters, tongue coating, and Gram-negative and Gram-positive bacteria in saliva. Thirty-nine subjects with oral malodor were randomly assigned into two groups. In the first stage, one group was instructed to rinse with the experimental mouthwash (containing 0.1% ClO2), whereas the other group was instructed to rinse with the control mouthwash (sodium chloride 0.9%) for 2 weeks. After 4 weeks of washing out, in the second stage, each group then used the other mouthwash for 2 weeks. Oral malodor, periodontal status, tongue coating, salivary pH and flow rate, and the amounts of the salivary bacteria Aggregatibacter actinomycetemcomitans, Fusobacterium nucleatum, Porphyromonas gingivalis, Solobacterium moorei, Streptococcus salivarius, Treponema denticola, and Tannerella forsythia were evaluated at baseline and after 2 weeks of mouthwash use. After 12 hr and after 2 weeks, organoleptic scores and the levels of H2S and CH3SH were significantly lower in the experimental group compared with those in the control group. After 2 weeks, the experimental mouthwash appeared significantly effective in reducing plaque index, tongue-coating score, and the amounts of F. nucleatum, S. moorei, T. denticola, and T. forsythia in the whole saliva, compared with those at baseline. Mouthwash containing 0.1% ClO2 is effective in reducing oral malodor, dental plaque, tongue-coating accumulation, and the amounts of F. nucleatum, S. moorei, T. denticola, and T. forsythia in saliva.
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Affiliation(s)
- Thuy Anh Vu Pham
- Department of Periodontology, Faculty of Odonto‐StomatologyUniversity of Medicine and PharmacyVietnam
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17
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de Lima PO, Nani BD, Almeida B, Marcondes FK, Groppo FC, de Moraes ABA, Franz-Montan M, Cogo-Müller K. Stress-related salivary proteins affect the production of volatile sulfur compounds by oral bacteria. Oral Dis 2018; 24:1358-1366. [PMID: 29761905 DOI: 10.1111/odi.12890] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 04/25/2018] [Accepted: 05/03/2018] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To determine whether stress-related substances and sex hormones influence the growth and in vitro production of volatile sulfur compounds (VSCs) by Solobacterium moorei and Fusobacterium nucleatum. MATERIALS AND METHODS Bacteria growth and VSCs production were evaluated in the presence of alpha-amylase, beta-defensin-2, mucin, estradiol, and progesterone. Growth was evaluated by colony counting, and the production of the VSCs hydrogen sulfide (H2 S) and methyl mercaptan (CH3 SH) was measured using the Oral Chroma™ instrument. RESULTS Mucin induced the production of H2 S by both bacteria, but had a slight inhibitory effect on CH3 SH production by F. nucleatum. It also increased the viability of F. nucleatum. Alpha-amylase increased H2 S production by S. moorei and CH3 SH production by F. nucleatum, but had no effect on H2 S production by F. nucleatum. No substance altered the viability of S. moorei. No effects of beta-defensin-2, estradiol, or progesterone were observed. CONCLUSION The salivary stress-related proteins mucin and alpha-amylase altered VSCs production by F. nucleatum and S. moorei, favoring H2 S production. These findings are a step toward understanding the relation between stress and increased amounts of H2 S.
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Affiliation(s)
- Patricia Oliveira de Lima
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil
| | - Bruno Dias Nani
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil
| | - Barbara Almeida
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil
| | - Fernanda Klein Marcondes
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil
| | - Francisco Carlos Groppo
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil
| | - Antonio Bento Alves de Moraes
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil
| | - Michelle Franz-Montan
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil
| | - Karina Cogo-Müller
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil.,Faculty of Pharmaceutical Sciences, University of Campinas - UNICAMP, Campinas, SP, Brazil
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18
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Seerangaiyan K, Jüch F, Winkel EG. Tongue coating: its characteristics and role in intra-oral halitosis and general health—a review. J Breath Res 2018; 12:034001. [DOI: 10.1088/1752-7163/aaa3a1] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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19
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LeBel G, Haas B, Adam AA, Veilleux MP, Lagha AB, Grenier D. Effect of cinnamon (Cinnamomum verum) bark essential oil on the halitosis-associated bacterium Solobacterium moorei and in vitro cytotoxicity. Arch Oral Biol 2017; 83:97-104. [DOI: 10.1016/j.archoralbio.2017.07.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 07/04/2017] [Accepted: 07/09/2017] [Indexed: 01/04/2023]
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20
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Changes in salivary microbiota increase volatile sulfur compounds production in healthy male subjects with academic-related chronic stress. PLoS One 2017; 12:e0173686. [PMID: 28319129 PMCID: PMC5358872 DOI: 10.1371/journal.pone.0173686] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 02/24/2017] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To investigate the associations among salivary bacteria, oral emanations of volatile sulfur compounds, and academic-related chronic stress in healthy male subjects. MATERIALS AND METHODS Seventy-eight healthy male undergraduate dental students were classified as stressed or not by evaluation of burnout, a syndrome attributed to academic-related chronic stress. This evaluation was carried out using the Maslach Burnout Inventory-Student Survey questionnaire. Oral emanations of hydrogen sulfide, methyl mercaptan, and dimethyl sulfide were measured using an Oral Chroma™ portable gas chromatograph. The amounts in saliva of total bacteria and seven bacteria associated with halitosis were quantified by qPCR. The in vitro production of H2S by S. moorei and/or F. nucleatum was also measured with the Oral Chroma™ instrument. RESULTS The stressed students group showed increased oral emanations of hydrogen sulfide and dimethyl sulfide, together with higher salivary Solobacterium moorei levels (p < 0.05, Mann Whitney test). There were moderate positive correlations between the following pairs of variables: Fusobacterium nucleatum and S. moorei; F. nucleatum and hydrogen sulfide; Tannerella forsythia and F. nucleatum; T. forsythia and S. moorei. These correlations only occurred for the stressed group (p < 0.05, Spearman correlation). The in vitro experiment demonstrated that S. moorei increased H2S production by F. nucleatum (p < 0.05, ANOVA and Tukey's test). CONCLUSION The increased amount of S. moorei in saliva, and its coexistence with F. nucleatum and T. forsythia, seemed to be responsible for increased oral hydrogen sulfide in the healthy male stressed subjects.
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21
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Hiranmayi KV, Sirisha K, Ramoji Rao MV, Sudhakar P. Novel Pathogens in Periodontal Microbiology. J Pharm Bioallied Sci 2017; 9:155-163. [PMID: 28979069 PMCID: PMC5621177 DOI: 10.4103/jpbs.jpbs_288_16] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Periodontitis is a polymicrobial disease caused by complex interactions between distinct pathogens in a biofilm resulting in the destruction of periodontal tissues. It seems evident that unknown microorganisms might be involved in onset or progression of periodontitis. For many decades, research in the field of oral microbiology failed to identify certain subgingival microbiota due to technical limitations but, over a period of 12 years using molecular approaches and sequencing techniques, it became feasible to reveal the existence of new periodontal pathogens. Therefore, it is evident that in addition to conventional periodontal pathogens, other microbes might be involved in onset and progression of periodontitis. The novel pathogens enlisted under periodontal phylogeny include Cryptobacterium curtum, Dialister pneumosintes, Filifactor alocis, Mitsuokella dentalis, Slackia exigua, Selenomonas sputigena, Solobacterium moorei, Treponema lecithinolyticum, and Synergistes. The polymicrobial etiology of periodontitis has been elucidated by comprehensive techniques, and studies throwing light on the possible virulence mechanisms possessed by these novel periodontal pathogens are enlisted.
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Affiliation(s)
- K Vidya Hiranmayi
- Post Graduate Student, Department of Periodontics and Implantology, Drs S and NR Siddhartha Institute of Dental Sciences, Krishna District, Andhra Pradesh, India
| | - K Sirisha
- Reader, Department of Periodontics and Implantology, Drs S and NR Siddhartha Institute of Dental Sciences, Krishna District, Andhra Pradesh, India
| | - M V Ramoji Rao
- HOD, Department of Periodontics and Implantology, Drs S and NR Siddhartha Institute of Dental Sciences, Krishna District, Andhra Pradesh, India
| | - P Sudhakar
- Post Graduate Student, Department of Periodontics and Implantology, Drs S and NR Siddhartha Institute of Dental Sciences, Krishna District, Andhra Pradesh, India
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22
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Ren W, Xun Z, Wang Z, Zhang Q, Liu X, Zheng H, Zhang Q, Zhang Y, Zhang L, Wu C, Zheng S, Qin N, Ehrlich SD, Li Y, He X, Xu T, Chen T, Chen F. Tongue Coating and the Salivary Microbial Communities Vary in Children with Halitosis. Sci Rep 2016; 6:24481. [PMID: 27080513 PMCID: PMC4832241 DOI: 10.1038/srep24481] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 03/30/2016] [Indexed: 12/20/2022] Open
Abstract
Halitosis is a common symptom mainly caused by microbial activities in the oral cavity. Here, we used 16S rRNA gene pyrosequencing and metagenomic sequencing to examine oral microbial compositions and their functional variations in children with halitosis. We found that the tongue coating of subjects with halitosis had greater bacterial richness than those of healthy subjects. The relative abundance and prevalence of Leptotrichia wadei and Peptostreptococcus stomatis were higher in tongue coating samples from children with halitosis than those from children without halitosis; Prevotella shahii had higher relative abundance and prevalence in saliva samples from children with halitosis. We present the first comprehensive evaluation of the co-occurrence networks of saliva and tongue coating communities under healthy and halitosis conditions, and investigated patterns of significant differences between these communities. Moreover, we observed that bacterial genes associated with responses to infectious diseases and terpenoid and polyketide metabolism were enriched in subjects with halitosis, but not in healthy subjects. Hydrogen sulphide (H2S)-related metabolic pathways suggested that there was higher microbial production and less usage of H2S in subjects with halitosis. Thus, the mechanism of halitosis was implied for the first time via metagenomic sequencing.
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Affiliation(s)
- Wen Ren
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Zhe Xun
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Zicheng Wang
- Bioinformatics Division, TNLIST and Department of Automation, Tsinghua University, Beijing, China
| | - Qun Zhang
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Xuenan Liu
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Hui Zheng
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - Qian Zhang
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yifei Zhang
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | | | - Chunyan Wu
- Realbio Genomics Institute, Shanghai, China
| | - Shuguo Zheng
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Nan Qin
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - S Dusko Ehrlich
- Metagenopolis, Institut National de la Recherche Agronomique, Jouy en Josas, France.,King's College London, Centre for Host-Microbiome Interactions, Dental Institute Central Office, Guy's Hospital, London Bridge, London, UK
| | - Yihong Li
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, USA
| | - Xuesong He
- School of Dentistry, University of California Los Angeles, Los Angeles, USA
| | - Tao Xu
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Ting Chen
- Bioinformatics Division, TNLIST and Department of Automation, Tsinghua University, Beijing, China.,Programs in Computational Biology and Bioinformatics, University of Southern California, Los Angeles, USA
| | - Feng Chen
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
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Satheeshkumar PS, Mohan MP. Halitosis, an imperative constraint in measuring the outcome of the oral care in oncology patients. Oral Oncol 2016; 56:e9. [PMID: 27004697 DOI: 10.1016/j.oraloncology.2016.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 03/04/2016] [Indexed: 10/22/2022]
Affiliation(s)
- P S Satheeshkumar
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Qassim University, PO Box: 6700, Buraidah, Saudi Arabia.
| | - Minu P Mohan
- Department of Prosthetic Dental Science, College of Dentistry, Qassim University, PO Box: 6700, Buraidah, Saudi Arabia.
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Lopes RG, da Mota ACC, Soares C, Tarzia O, Deana AM, Prates RA, França CM, Fernandes KPS, Ferrari RAM, Bussadori SK. Immediate results of photodynamic therapy for the treatment of halitosis in adolescents: a randomized, controlled, clinical trial. Lasers Med Sci 2015; 31:41-7. [PMID: 26510574 DOI: 10.1007/s10103-015-1822-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 10/13/2015] [Indexed: 12/12/2022]
Abstract
UNLABELLED Light with or without chemical agents has been used to induce therapeutic and antimicrobial effects. With photodynamic therapy, the antimicrobial effect is confined to areas covered by a photosensitive dye and irradiated with light. The aim of the present study was to evaluate the effect of photodynamic therapy for the treatment of halitosis in adolescents through the analysis of volatile sulfur compounds, especially sulfide. A controlled, clinical trial was conducted with 45 adolescents randomly allocated to three groups: group 1, photodynamic therapy administered to the dorsum of the tongue; group 2, treatment with a tongue scraper; and group 3, treatment with a tongue scraper combined with photodynamic therapy. The diagnosis of halitosis was performed using gas chromatography before and after treatment. Comparisons were made using the Kruskal-Wallis test followed by the Student-Newman-Keuls test, with the level of significance set at 5 % (p < 0.05). After treatment, a statistically significant reduction in halitosis was found in all groups (p < 0.001). The greatest reduction in total sulfides (median = 0) occurred with the combination of tongue scraper and photodynamic therapy. The present study describes a novel option for the treatment of halitosis in adolescents with an immediate effect that does not involve the mechanical aggression of the lingual papillae that occurs with conventional treatment. TRIAL REGISTRATION Photodynamic Therapy in Adolescents Halitosis ( https://clinicaltrials.gov/ct2/show/NCT02007993?term=NCT02007993&rank=1 )Number: NCT02007993FUNDING:FAPESPNumber: 2013/13032-8.
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Affiliation(s)
- Rubia Garcia Lopes
- Biophotonics Applied to Science Health Post Graduation Program, Nove de Julho University, São Paulo, Brazil
| | - Ana Carolina Costa da Mota
- Biophotonics Applied to Science Health Post Graduation Program, Nove de Julho University, São Paulo, Brazil
| | - Carolina Soares
- Center of Excellence in the Treatment of Halitosis, São Paulo, Brazil
| | - Olinda Tarzia
- Center of Excellence in the Treatment of Halitosis, São Paulo, Brazil
| | - Alessandro Melo Deana
- Biophotonics Applied to Science Health Post Graduation Program, Nove de Julho University, São Paulo, Brazil
| | - Renato Araújo Prates
- Biophotonics Applied to Science Health Post Graduation Program, Nove de Julho University, São Paulo, Brazil
| | - Cristiane Miranda França
- Biophotonics Applied to Science Health Post Graduation Program, Nove de Julho University, São Paulo, Brazil
| | | | | | - Sandra Kalil Bussadori
- Biophotonics Applied to Science Health Post Graduation Program, Nove de Julho University, São Paulo, Brazil.
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25
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Morin MP, Bedran TBL, Fournier-Larente J, Haas B, Azelmat J, Grenier D. Green tea extract and its major constituent epigallocatechin-3-gallate inhibit growth and halitosis-related properties of Solobacterium moorei. Altern Ther Health Med 2015; 15:48. [PMID: 25880992 PMCID: PMC4415245 DOI: 10.1186/s12906-015-0557-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 09/29/2014] [Indexed: 12/24/2022]
Abstract
Background Solobacterium moorei is a volatile sulfide compound (VSC)-producing Gram-positive anaerobic bacterium that has been associated with halitosis. The aim of this study was to investigate the effects of green tea extract and its major constituent epigallocatechin-3-gallate (EGCG) on growth and several halitosis-related properties of S. moorei. Methods A microplate dilution assay was used to determine the antibacterial activity of green tea extract and EGCG against S. moorei. Their effects on bacterial cell membrane integrity were investigated by transmission electron microscopy and a fluorescence-based permeability assay. Biofilm formation was quantified by crystal violet staining. Adhesion of FITC-labeled S. moorei to oral epithelial cells was monitored by fluorometry. The modulation of β-galactosidase gene expression in S. moorei was evaluated by quantitative RT-PCR. Results The green tea extract as well as EGCG inhibited the growth of S. moorei, with MIC values of 500 and 250 μg/ml, respectively. Transmission electron microscopy analysis and a permeabilization assay brought evidence that the bacterial cell membrane was the target of green tea polyphenols. Regarding the effects of green tea polyphenols on the S. moorei colonization properties, it was found that biofilm formation on EGCG-treated surfaces was significantly affected, and that green tea extract and EGCG can cause the eradication of pre-formed S. moorei biofilms. Moreover, both the green tea extract and EGCG were found to reduce the adherence of S. moorei to oral epithelial cells. The β-galactosidase activity of S. moorei, which plays a key role in VSC production, was dose-dependently inhibited by green tea polyphenols. In addition, EGCG at ½ MIC significantly decreased the β-galactosidase gene expression. Conclusion Our study brought evidence to support that green tea polyphenols possess a number of properties that may contribute to reduce S. moorei-related halitosis. Therefore, these natural compounds may be of interest to be used to supplement oral healthcare products.
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Sayedi SJ, Modaresi MR, Saneian H. Effect of Metronidazole on Halitosis of 2 to 10 Years Old Children. IRANIAN JOURNAL OF PEDIATRICS 2015. [PMID: 26199692 PMCID: PMC4505974 DOI: 10.5812/ijp.252] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Background: Regarding the fact that halitosis has social and personal aspects which can lead to social embarrassment and consequently low self-esteem and self-confidence in subjects suffering from the problem, especially children, its proper treatment is an important issue. Objectives: The aim of this study was to evaluate the effect of metronidazole as a nonspecific antimicrobial agent in the treatment of halitosis in children. Materials and Methods: In this study, 2-10 years old children with oral halitosis were enrolled. Children without H. pylori infection and parasitic infection were randomized in two interventional and control groups. Metronidazole was given 5mg/kg/day for one week. Information regarding the demographic characteristics of studied population and halitosis (duration and time of day with more halitosis and its severity) before and after intervention was recorded using a questionnaire Results: 77 children with halitosis were studied in two interventional (40 children) and control (37 children) groups. There was no significant difference between two groups before intervention. After intervention, halitosis improvement rate - according to the reports of mothers of studied children - was higher significantly in intervention group (P < 0.05). Conclusions: The results support the effectiveness of metronidazole in the treatment of halitosis. Moreover, it supports recent findings regarding the participation of specific bacteria specially unculturable ones in the pathogenesis of the disease.
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Affiliation(s)
- Sayed Javad Sayedi
- Department of Pediatrics, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Mohammad Reza Modaresi
- Department of Pediatrics, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Mohammad Reza Modaresi, Pediatric Pulmonolary Division, Children’s Medical Center, No. 62, Dr Gharib St, Tehran, IR Iran. Tel: +98-2161475, E-mail:
| | - Hosein Saneian
- Department of Pediatrics, Isfahan University of Medical Sciences, Isfahan, IR Iran
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Lopes RG, de Godoy CHL, Deana AM, de Santi MESO, Prates RA, França CM, Fernandes KPS, Mesquita-Ferrari RA, Bussadori SK. Photodynamic therapy as a novel treatment for halitosis in adolescents: study protocol for a randomized controlled trial. Trials 2014; 15:443. [PMID: 25394474 PMCID: PMC4236439 DOI: 10.1186/1745-6215-15-443] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 10/07/2014] [Indexed: 12/25/2022] Open
Abstract
Background Halitosis is a common problem that affects a large portion of the population worldwide. The origin of this condition is oral in 90% and systemic in 10% of cases. The unpleasant odor is mainly the result of volatile sulfur compounds produced by Gram-negative bacteria. However, it has recently been found that anaerobic Gram-positive bacteria also produce hydrogen sulfide (H2S) in the presence of amino acids, such as cysteine. Light, both with and without the use of chemical agents, has been used to induce therapeutic and antimicrobial effects. In photodynamic therapy, the antimicrobial effect is confined to areas covered by photosensitizing dye. The aim of the present study is to evaluate the antimicrobial effect of photodynamic therapy on halitosis in adolescents through the analysis of volatile sulfur compounds measured using gas chromatography and microbiological analysis of coated tongue. Methods/Design A quantitative clinical trial will be carried out involving 60 adolescents randomly divided into the following groups: group 1 will receive treatment with a tongue scraper, group 2 will receive photodynamic therapy applied to the posterior two-thirds of the dorsum of the tongue, and group 3 will receive combined treatment (tongue scraper and photodynamic therapy). Gas chromatography (OralChromaTM) and microbiological analysis will be used for the diagnosis of halitosis at the beginning of the study. Post-treatment evaluations will be conducted at one hour and 24 hours after treatment. The statistical analysis will include the Shapiro-Wilk test for the determination of the distribution of the data. If normal distribution is demonstrated, analysis of variance followed by Tukey’s test will be used to compare groups. The Kruskal-Wallis test followed by the Student-Newman-Keuls test will be used for data with non-normal distribution. Either the paired t-test or the Wilcoxon test will be used to compare data before and after treatment, depending on the distribution of the data. Discussion The results of this trial will determine the efficacy of using photodynamic therapy alone or in combination with a tongue scraper to treat bad breath in adolescents. Trial registration The protocol for this study was registered with Clinical Trials (registration number NCT02007993) on 10 December 2013.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Sandra Kalil Bussadori
- University Nove de Julho, Rua Vergueiro, 235, Liberdade, São Paulo, SP 01504-000, Brazil.
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Petrini M, Costacurta M, Ferrante M, Trentini P, Docimo R, Spoto G. Association between the organoleptic scores, oral condition and salivary β-galactosidases in children affected by halitosis. Int J Dent Hyg 2014; 12:213-8. [DOI: 10.1111/idh.12083] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2014] [Indexed: 11/29/2022]
Affiliation(s)
- M Petrini
- Department of Medical, Oral and Biotechnologicalical Sciences; University of Chieti; Chieti Italy
| | - M Costacurta
- Paediatric Dentistry Unit; University of Rome “Tor Vergata”; Rome Italy
| | - M Ferrante
- Department of Medical, Oral and Biotechnologicalical Sciences; University of Chieti; Chieti Italy
| | - P Trentini
- Department of Medical, Oral and Biotechnologicalical Sciences; University of Chieti; Chieti Italy
| | - R Docimo
- Paediatric Dentistry Unit; University of Rome “Tor Vergata”; Rome Italy
| | - G Spoto
- Department of Medical, Oral and Biotechnologicalical Sciences; University of Chieti; Chieti Italy
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Vancauwenberghe F, Dadamio J, Laleman I, Van Tornout M, Teughels W, Coucke W, Quirynen M. The role of
Solobacterium moorei
in oral malodour. J Breath Res 2013; 7:046006. [DOI: 10.1088/1752-7155/7/4/046006] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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García-Sánchez JE, García-Sánchez E, Martín-Del-Rey Á, García-Merino E. [Anaerobic bacteria 150 years after their discovery by Pasteur]. Enferm Infecc Microbiol Clin 2013; 33:119-28. [PMID: 23648369 DOI: 10.1016/j.eimc.2013.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 03/07/2013] [Accepted: 03/11/2013] [Indexed: 01/05/2023]
Abstract
In 2011 we celebrated the 150th anniversary of the discovery of anaerobic bacteria by Louis Pasteur. The interest of the biomedical community on such bacteria is still maintained, and is particularly focused on Clostridium difficile. In the past few years important advances in taxonomy have been made due to the genetic, technological and computing developments. Thus, a significant number of new species related to human infections have been characterised, and some already known have been reclassified. At pathogenic level some specimens of anaerobic microflora, that had not been isolated from human infections, have been now isolated in some clinical conditions. There was emergence (or re-emergence) of some species and clinical conditions. Certain anaerobic bacteria have been associated with established infectious syndromes. The virulence of certain strains has increased, and some hypotheses on their participation in certain diseases have been given. In terms of diagnosis, the routine use of MALDI-TOF has led to a shortening of time and a cost reduction in the identification, with an improvement directly related to the improvement of data bases. The application of real-time PCR has been another major progress, and the sequencing of 16srRNA gene and others is currently a reality for several laboratories. Anaerobes have increased their resistance to antimicrobial agents, and the emergence of resistance to carbapenems and metronidazole, and multi-resistance is a current reality. In this situation, linezolid could be an effective alternative for Bacteroides. Fidaxomicin is the only anti-anaerobic agent introduced in the recent years, specifically for the diarrhoea caused by C.difficile. Moreover, some mathematical models have also been proposed in relation with this species.
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Affiliation(s)
- José Elías García-Sánchez
- Departamento de Medicina Preventiva, Salud Pública y Microbiología Médica, Facultad de Medicina, Universidad de Salamanca, Salamanca, España.
| | - Enrique García-Sánchez
- Departamento de Medicina Preventiva, Salud Pública y Microbiología Médica, Facultad de Medicina, Universidad de Salamanca, Salamanca, España
| | - Ángel Martín-Del-Rey
- Departamento de Matemática Aplicada, Escuela Politécnica Superior de Ávila, Universidad de Salamanca, Ávila, España
| | - Enrique García-Merino
- Departamento de Salud, Instituto de Educación Secundaria Ramón y Cajal, Valladolid, España
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Forrer M, Kulik EM, Filippi A, Waltimo T. The antimicrobial activity of alpha-bisabolol and tea tree oil against Solobacterium moorei, a Gram-positive bacterium associated with halitosis. Arch Oral Biol 2013; 58:10-6. [DOI: 10.1016/j.archoralbio.2012.08.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Revised: 06/26/2012] [Accepted: 08/04/2012] [Indexed: 11/26/2022]
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Tanabe SI, Grenier D. Characterization of volatile sulfur compound production by Solobacterium moorei. Arch Oral Biol 2012; 57:1639-43. [PMID: 23088790 DOI: 10.1016/j.archoralbio.2012.09.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 08/16/2012] [Accepted: 09/20/2012] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Solobacterium moorei is a Gram positive bacterium that has been specifically associated with halitosis. The aim of this study was to characterize volatile sulfur compound (VSC) production by S. moorei. METHODS S. moorei was either grown or incubated in the presence of various supplements prior to determining VSC production with a Halimeter sulfide monitor. The effect of exogenous proteases or glycosidase inhibitors on VSC production by S. moorei was examined. RESULTS We first showed that S. moorei can convert cysteine into hydrogen sulfide. The capacity of S. moorei to produce VSCs from serum, saliva, and mucin was dependent on the presence of an exogenous source of proteases such as pancreatic trypsin or Porphyromonas gingivalis gingipains. VSC production from mucin was inhibited by the presence of a β-galactosidase inhibitor, thus suggesting that deglycosylation of mucin by S. moorei is critical for VSC production. CONCLUSION Our study suggests that S. moorei can be a major source of malodorous compounds in halitosis by producing VSCs through a process involving the β-galactosidase activity of the bacterium and an exogenous source of proteases.
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Affiliation(s)
- Shin-ichi Tanabe
- Groupe de Recherche en Écologie Buccale, Faculté de Médecine Dentaire, Université Laval, Quebec City, Quebec, Canada
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Chicken egg yolk antibody (IgY) controls Solobacterium moorei under in vitro and in vivo conditions. Appl Biochem Biotechnol 2012; 168:1448-58. [PMID: 22968588 DOI: 10.1007/s12010-012-9869-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2012] [Accepted: 08/27/2012] [Indexed: 10/27/2022]
Abstract
Solobacterium moorei is a causative agent in diseases such as oral halitosis, bacteremia, and necrobacillosis-associated thrombophlebitis. The objective of this study was to determine the effectiveness of chicken egg yolk antibody (IgY) in controlling S. moorei. Intact S. moorei cells were used as an immunogen to immunize four White Leghorn laying hens. IgY, extracted from egg yolks obtained from these immunized hens, was purified using water dilution, two-step salt precipitation, and ultrafiltration. The purity of the IgY obtained was approximately 87.3 %. The antibody titer of the IgY was determined by enzyme-linked immunosorbent assay. The antibody titer peaked at 10,000 following the third immunization. In order to evaluate the inhibitory effects of the specific IgY, the growth of S. moorei in liquid media was measured every 12 h using a microplate reader at 600 nm. Biofilm formation of S. moorei was quantified by staining with crystal violet. The specific binding ability of IgY was further confirmed by the use of immunofluorescence and immunoelectron microscopy. Growth and biofilm formation of S. moorei were significantly (P<0.05) inhibited by 20 and 40 mg/ml specific IgY compared with the control. The specific IgY also decreased the bacterial level in the oral cavity of mice after infection with S. moorei. This study demonstrates that the growth and biofilm formation of S. moorei can be effectively inhibited by specific IgY. As a result, IgY technology may have application in the control of diseases caused by S. moorei.
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Petrini M, Trentini P, Ferrante M, D'Alessandro L, Spoto G. Spectrophotometric assessment of salivary β-galactosidases in halitosis. J Breath Res 2012; 6:021001. [DOI: 10.1088/1752-7155/6/2/021001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Masdea L, Kulik EM, Hauser-Gerspach I, Ramseier AM, Filippi A, Waltimo T. Antimicrobial activity of Streptococcus salivarius K12 on bacteria involved in oral malodour. Arch Oral Biol 2012; 57:1041-7. [PMID: 22405584 DOI: 10.1016/j.archoralbio.2012.02.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 01/23/2012] [Accepted: 02/11/2012] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To investigate the antimicrobial activity of the bacteriocin-producing strain Streptococcus salivarius K12 against several bacteria involved in halitosis. DESIGN The inhibitory activity of S. salivarius K12 against Solobacterium moorei CCUG39336, four clinical S. moorei isolates, Atopobium parvulum ATCC33793 and Eubacterium sulci ATCC35585 was examined by a deferred antagonism test. Eubacterium saburreum ATCC33271 and Parvimonas micra ATCC33270, which have been tested in previous studies, served as positive controls, and the Gram-negative strain Bacteroides fragilis ZIB2800 served as a negative control. Additionally, the occurrence of resistance in S. moorei CCUG39336 to S. salivarius K12 was analysed by either direct plating or by passage of S. moorei CCUG39336 on chloroform-inactived S. salivarius K12-containing agar plates. RESULTS S. salivarius K12 suppressed the growth of all Gram-positive bacteria tested, but the extent to which the bacteria were inhibited varied. E. sulci ATCC35585 was the most sensitive strain, while all five S. moorei isolates were inhibited to a lesser extent. Natural resistance seems to be very low in S. moorei CCUG39336, and there was only a slight decrease in sensitivity after exposure to S. salivarius K12 over 10 passages. CONCLUSION Our studies demonstrate that S. salivarius K12 has antimicrobial activity against bacteria involved in halitosis. This strain might be an interesting and valuable candidate for the development of an antimicrobial therapy for halitosis.
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Affiliation(s)
- L Masdea
- Institute of Preventive Dentistry and Oral Microbiology, School of Dental Medicine, University of Basel, Switzerland
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Tanabe SI, Desjardins J, Bergeron C, Gafner S, Villinski JR, Grenier D. Reduction of bacterial volatile sulfur compound production by licoricidin and licorisoflavan A from licorice. J Breath Res 2012; 6:016006. [PMID: 22368239 DOI: 10.1088/1752-7155/6/1/016006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Halitosis affects a large proportion of the population and is, in most cases, caused by the production of volatile sulfur compounds (VSCs), particularly methyl mercaptan and hydrogen sulfide, by specific bacterial species colonizing the oral cavity. In this study, a supercritical extract of Chinese licorice (Glycyrrhiza uralensis), and its major isoflavans, licoricidin and licorisoflavan A, were investigated for their effect on growth, VSC production and protease activity of Porphyromonas gingivalis, Prevotella intermedia and Solobacterium moorei, which have been associated with halitosis. The effects of licorice extract, licoricidin, and licorisoflavan A on VSC production in a saliva model were also tested. We first showed that licoricidin and licorisoflavan A, and to a lesser extent the licorice extract, were effective in inhibiting the growth of all three bacterial species, with minimal inhibitory concentrations in the range of 2-80 µg ml(-1). The licorice extract and the two isolates licoricidin and licorisoflavan A, were able to dose-dependently reduce VSC production by P. gingivalis, Prev. intermedia, and S. moorei as well as by a human saliva model. Although the extract and isolates did not inhibit the proteolytic activity of bacteria, they blocked the conversion of cysteine into hydrogen sulfide by Prev. intermedia. Lastly, the deodorizing effects of the licorice extract, licoricidin, and licorisoflavan A were demonstrated, as they can neutralize P. gingivalis-derived VSCs. Licorisoflavan A (10 µg ml(-1)) was found to be the most effective by reducing VSC levels by 50%. Within the limitations of this study, it can be concluded that a licorice supercritical extract and its major isoflavans (licoricidin and licorisoflavan A) represent natural ingredients with a potential for reducing bacterial VSC production and therefore for controlling halitosis.
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Solobacterium moorei bacteremia: identification, antimicrobial susceptibility, and clinical characteristics. J Clin Microbiol 2011; 49:2766-8. [PMID: 21525228 DOI: 10.1128/jcm.02525-10] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
We present five cases of Solobacterium moorei bacteremia. The isolates were identified with 16S rRNA gene sequencing and were susceptible to common antibiotics used for anaerobic infections. Bacteremia with S. moorei seems to be associated with debilitating conditions, but the prognosis of the infection appears to be good.
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Phenotypic and molecular characterization of Solobacterium moorei isolates from patients with wound infection. J Clin Microbiol 2010; 48:873-6. [PMID: 20071554 DOI: 10.1128/jcm.01381-09] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Though seldom reported, Solobacterium moorei, which was first described in 2000, has been identified in specimens from patients with root canals, periradicular lesions, periodontal disease, dentoalveolar abscesses, bacteremia, septic thrombophlebitis, and halitosis. In the present study, we describe 9 cases of mixed wound infection, from a pool of 400 surgical wound infections that we have studied, in which S. moorei was isolated or found in a clone library. All isolates of S. moorei were identified by 16S rRNA gene sequence analysis, and then six were examined for their physiological and biochemical characteristics and for antimicrobial susceptibility. The results of the present study indicate that Solobacterium moorei may be a significant component in some mixed surgical wound infections and that surgical management and antimicrobial therapy may be indicated when these bacteria are identified in significant situations.
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Colombo APV, Boches SK, Cotton SL, Goodson JM, Kent R, Haffajee AD, Socransky SS, Hasturk H, Van Dyke TE, Dewhirst F, Paster BJ. Comparisons of subgingival microbial profiles of refractory periodontitis, severe periodontitis, and periodontal health using the human oral microbe identification microarray. J Periodontol 2009; 80:1421-32. [PMID: 19722792 DOI: 10.1902/jop.2009.090185] [Citation(s) in RCA: 387] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND This study compared the subgingival microbiota of subjects with refractory periodontitis (RP) to those in subjects with treatable periodontitis (GRs = good responders) or periodontal health (PH) using the Human Oral Microbe Identification Microarray (HOMIM). METHODS At baseline, subgingival plaque samples were taken from 47 subjects with periodontitis and 20 individuals with PH and analyzed for the presence of 300 species by HOMIM. The subjects with periodontitis were classified as having RP (n = 17) based on mean attachment loss (AL) and/or more than three sites with AL >or=2.5 mm after scaling and root planing, surgery, and systemically administered amoxicillin and metronidazole or as GRs (n = 30) based on mean attachment gain and no sites with AL >or=2.5 mm after treatment. Significant differences in taxa among the groups were sought using the Kruskal-Wallis and chi(2) tests. RESULTS More species were detected in patients with disease (GR or RP) than in those without disease (PH). Subjects with RP were distinguished from GRs or those with PH by a significantly higher frequency of putative periodontal pathogens, such as Parvimonas micra (previously Peptostreptococcus micros or Micromonas micros), Campylobacter gracilis, Eubacterium nodatum, Selenomonas noxia, Tannerella forsythia (previously T. forsythensis), Porphyromonas gingivalis, Prevotella spp., Treponema spp., and Eikenella corrodens, as well as unusual species (Pseudoramibacter alactolyticus, TM7 spp. oral taxon [OT] 346/356, Bacteroidetes sp. OT 272/274, Solobacterium moorei, Desulfobulbus sp. OT 041, Brevundimonas diminuta, Sphaerocytophaga sp. OT 337, Shuttleworthia satelles, Filifactor alocis, Dialister invisus/pneumosintes, Granulicatella adiacens, Mogibacterium timidum, Veillonella atypica, Mycoplasma salivarium, Synergistes sp. cluster II, and Acidaminococcaceae [G-1] sp. OT 132/150/155/148/135) (P <0.05). Species that were more prevalent in subjects with PH than in patients with periodontitis included Actinomyces sp. OT 170, Actinomyces spp. cluster I, Capnocytophaga sputigena, Cardiobacterium hominis, Haemophilus parainfluenzae, Lautropia mirabilis, Propionibacterium propionicum, Rothia dentocariosa/mucilaginosa, and Streptococcus sanguinis (P <0.05). CONCLUSION As determined by HOMIM, patients with RP presented a distinct microbial profile compared to patients in the GR and PH groups.
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Affiliation(s)
- 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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