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Takeuchi Y, Mizukami H, Kudoh K, Osonoi S, Sasaki T, Kushibiki H, Ogasawara S, Hara Y, Igawa A, Pan X, Yamada T, Yamazaki K, Mikami T, Daimon M, Yagihashi S, Hakamada K, Nakaji S. The diversity and abundance of gut microbiota are associated with the pain sensation threshold in the Japanese population. Neurobiol Dis 2022; 173:105839. [PMID: 35988875 DOI: 10.1016/j.nbd.2022.105839] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/02/2022] [Accepted: 08/13/2022] [Indexed: 10/15/2022] Open
Abstract
Small fibre neuropathy (SFN) is an initial pathology of diabetic polyneuropathy (DPN). Serum lipopolysaccharide binding protein levels are positively correlated with the pain threshold in the foot, suggesting that the abundance of gut Gram-negative bacilli, which are a source of lipopolysaccharides, may be involved in the development of DPN. Furthermore, the abundance of the gut and oral microbiota is assumed to be involved in the pathogenesis of diabetes. Nevertheless, the association between SFN and the microbiota has not been clarified. A total of 1056 individuals were recruited in the 2018 Iwaki Health Promotion Project. Pain sensation was evaluated based on the pain threshold from intraepidermal electrical stimulation (PINT). Patients with PINT scores <0.15 mA were categorized into the low-PINT group (n = 718); otherwise, they were categorized into the high-PINT group (n = 283). Furthermore, each group was divided into the subjects with or without glucose tolerance based on HbA1c levels, fasting blood glucose levels and diabetic history. Principal coordinate analysis and α- and β-diversity of the microbiota were evaluated. The correlation between clinical and microbiota data was examined. Oral microbiota diversity showed no structural differences according to PINT scores, whereas principal coordinate analysis and α- and β-diversity revealed significant structural differences in gut microbiota (p < 0.01, p < 0.05 and p < 0.05, respectively), even after the participants with glucose intolerance were excluded (p < 0.01, p < 0.05 and p < 0.05, respectively). The relative abundance of the genus Bacteroides was significantly lower in high-PINT participants compared with low-PINT participants (10 ± 6.7% vs. 11.3 ± 7.0%, p < 0.01), even after the exclusion of subjects with diabetes and impaired fasting glucose (10.0 ± 6.5% vs. 11.2 ± 6.9%, p < 0.05). In univariate linear regression analyses, PINT was significantly correlated with metabolic syndrome parameters, eGFR, uric acid level and the abundance of Bacteroides. The correlation between Bacteroides and PINT scores remained significant after adjustment for multiple factors (β = -0.07181, p < 0.05). Changes of bacterial diversity and a low abundance of gut Bacteroides were correlated with elevated PINT scores in the Japanese population. This correlation may represent a new therapeutic option for SFN.
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Affiliation(s)
- Yuki Takeuchi
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; Department of Endocrinology and Metabolism, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Hiroki Mizukami
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan.
| | - Kazuhiro Kudoh
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Sho Osonoi
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; Department of Endocrinology and Metabolism, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Takanori Sasaki
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Hanae Kushibiki
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Saori Ogasawara
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Yutaro Hara
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Akiko Igawa
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Xuekai Pan
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Takahiro Yamada
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Keisuke Yamazaki
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Tatsuya Mikami
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Makoto Daimon
- Department of Endocrinology and Metabolism, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Soroku Yagihashi
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Kenichi Hakamada
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
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Giordano-Kelhoffer B, Lorca C, March Llanes J, Rábano A, del Ser T, Serra A, Gallart-Palau X. Oral Microbiota, Its Equilibrium and Implications in the Pathophysiology of Human Diseases: A Systematic Review. Biomedicines 2022; 10:biomedicines10081803. [PMID: 36009350 PMCID: PMC9405223 DOI: 10.3390/biomedicines10081803] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/19/2022] [Accepted: 07/23/2022] [Indexed: 02/06/2023] Open
Abstract
Imbalances of the oral microbiota and dysbiosis have traditionally been linked to the occurrence of teeth and oral diseases. However, recent findings indicate that this microbiota exerts relevant influence in systemic health. Dysbiosis of the oral microbiota is implicated in the apparition and progression of cardiovascular, neurodegenerative and other major human diseases. In fact, the oral microbiota are the second most diverse and largely populated microbiota of the human body and its relationships with systemic health, although widely explored, they still lack of proper integration. The purpose of this systematic review is thus to widely examine the implications of oral microbiota in oral, cardiovascular and neurodegenerative diseases to offer integrative and up-to-date interpretations. To achieve that aim, we identified a total of 121 studies curated in PUBMED from the time interval January 2003–April 2022, which after careful screening resulted in 79 studies included. The reviewed scientific literature provides plausible vias of implication of dysbiotic oral microbiota in systemic human diseases, and encourages further research to continue elucidating the highly relevant and still poorly understood implications of this niche microbiota in systemic health. PROSPERO Registration Number: CRD42022299692. This systematic review follows relevant PRISMA guidelines.
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Affiliation(s)
- Barbara Giordano-Kelhoffer
- Faculty of Dentistry, Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain;
- Bioengineering Institute of Technology, Faculty of Health Sciences, Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
- Faculty of Health Sciences, Valencian International University, 46002 Valencia, Spain
- Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRB Lleida), Neuroscience Area, +Pec Proteomics Research Group (+PPRG), University Hospital Arnau de Vilanova (HUAV), 25198 Lleida, Spain;
| | - Cristina Lorca
- Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRB Lleida), Neuroscience Area, +Pec Proteomics Research Group (+PPRG), University Hospital Arnau de Vilanova (HUAV), 25198 Lleida, Spain;
- IMDEA—Food Research Institute, +Pec Proteomics, Campus of International Excellence UAM + CSIC, Old Cantoblanco Hospital, 8 Crta. Canto Blanco, 28049 Madrid, Spain
| | - Jaume March Llanes
- NeuroPGA Research Group—Psychology Department, University of Lleida (UdL), 25001 Lleida, Spain;
| | - Alberto Rábano
- Alzheimer’s Centre Reina Sofia—CIEN Foundation, 28031 Madrid, Spain; (A.R.); (T.d.S.)
| | - Teodoro del Ser
- Alzheimer’s Centre Reina Sofia—CIEN Foundation, 28031 Madrid, Spain; (A.R.); (T.d.S.)
| | - Aida Serra
- IMDEA—Food Research Institute, +Pec Proteomics, Campus of International Excellence UAM + CSIC, Old Cantoblanco Hospital, 8 Crta. Canto Blanco, 28049 Madrid, Spain
- Correspondence: (A.S.); (X.G.-P.); Tel.: +34-91-7278-100 (A.S.); +34-97-3702-224 (X.G.-P.)
| | - Xavier Gallart-Palau
- Faculty of Health Sciences, Valencian International University, 46002 Valencia, Spain
- Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRB Lleida), Neuroscience Area, +Pec Proteomics Research Group (+PPRG), University Hospital Arnau de Vilanova (HUAV), 25198 Lleida, Spain;
- Psychology Department, University of Lleida (UdL), 25001 Lleida, Spain
- Correspondence: (A.S.); (X.G.-P.); Tel.: +34-91-7278-100 (A.S.); +34-97-3702-224 (X.G.-P.)
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Rahman S. Ramadan Fasting and its Health Benefits: What’s New? Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.9508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Fasting is one of the five pillars of Islam. Fasting entails more than abstaining from food and drink, fasting improves impulse control and aids in the development of good behavior. The holy month of Ramadan falls on the 9th month of the lunar calendar. Ramadan is a month-long fasting period that takes place between dawn and sunset. Some people with diabetes and those who are sick or have certain medical conditions may be exempt. The majority of people with diabetes, on the other hand, choose to fast; even against medical advice. Many studies have been conducted to determine the health benefits of fasting. Apart from the benefits to the body’s organs, Ramadan fasting is also beneficial for the growth of the gut microbiota and gene expression and is believed to impact the body’s autophagy process. Furthermore, Ramadan fasting has an impact on mental health; TC and LDL were lower, while HDL and TG were higher, lowers inflammation, and oxidative stress markers.
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Ates HC, Nguyen PQ, Gonzalez-Macia L, Morales-Narváez E, Güder F, Collins JJ, Dincer C. End-to-end design of wearable sensors. NATURE REVIEWS. MATERIALS 2022; 7:887-907. [PMID: 35910814 PMCID: PMC9306444 DOI: 10.1038/s41578-022-00460-x] [Citation(s) in RCA: 227] [Impact Index Per Article: 113.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/15/2022] [Indexed: 05/03/2023]
Abstract
Wearable devices provide an alternative pathway to clinical diagnostics by exploiting various physical, chemical and biological sensors to mine physiological (biophysical and/or biochemical) information in real time (preferably, continuously) and in a non-invasive or minimally invasive manner. These sensors can be worn in the form of glasses, jewellery, face masks, wristwatches, fitness bands, tattoo-like devices, bandages or other patches, and textiles. Wearables such as smartwatches have already proved their capability for the early detection and monitoring of the progression and treatment of various diseases, such as COVID-19 and Parkinson disease, through biophysical signals. Next-generation wearable sensors that enable the multimodal and/or multiplexed measurement of physical parameters and biochemical markers in real time and continuously could be a transformative technology for diagnostics, allowing for high-resolution and time-resolved historical recording of the health status of an individual. In this Review, we examine the building blocks of such wearable sensors, including the substrate materials, sensing mechanisms, power modules and decision-making units, by reflecting on the recent developments in the materials, engineering and data science of these components. Finally, we synthesize current trends in the field to provide predictions for the future trajectory of wearable sensors.
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Affiliation(s)
- H. Ceren Ates
- FIT Freiburg Center for Interactive Materials and Bioinspired Technology, University of Freiburg, Freiburg, Germany
- IMTEK – Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
| | - Peter Q. Nguyen
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA USA
| | | | - Eden Morales-Narváez
- Biophotonic Nanosensors Laboratory, Centro de Investigaciones en Óptica, León, Mexico
| | - Firat Güder
- Department of Bioengineering, Imperial College London, London, UK
| | - James J. Collins
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA USA
- Institute of Medical Engineering & Science, Department of Biological Engineering, MIT, Cambridge, MA USA
- Broad Institute of MIT and Harvard, Cambridge, MA USA
| | - Can Dincer
- FIT Freiburg Center for Interactive Materials and Bioinspired Technology, University of Freiburg, Freiburg, Germany
- IMTEK – Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
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Long-Term Mastication Changed Salivary Metabolomic Profiles. Metabolites 2022; 12:metabo12070660. [PMID: 35888784 PMCID: PMC9322701 DOI: 10.3390/metabo12070660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/08/2022] [Accepted: 07/15/2022] [Indexed: 11/29/2022] Open
Abstract
Saliva is an ideal biofluid for monitoring oral and systemic health. Repeated mastication is a typical physical stimulus that improves salivary flow and oral hygiene. Recent metabolomic studies have shown the potential of salivary metabolomic components for various disease monitoring systems. Here, we evaluated the effect of long-term mastication on salivary metabolomic profiles. Young women with good oral hygiene (20.8 ± 0.3 years, n = 17) participated. They were prohibited from chewing gum during control periods (4 weeks each) and were instructed to chew a piece of gum base seven times a day for 10 min each time during the intervention period. Paired samples of unstimulated whole saliva collected on the last day of the control and intervention period were compared. Liquid chromatography−time-of-flight mass spectrometry successfully quantified 85 metabolites, of which 41 showed significant differences (p < 0.05, Wilcoxon paired test corrected by false discovery rate). Except for a few metabolites, such as citrate, most metabolites showed lower concentrations after the intervention. The pathways related to glycogenic amino acids, such as alanine, arginine, and glutamine, altered considerably. This study suggests that long-term mastication induces unstimulated salivary component-level changes.
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The New Era of Salivaomics in Dentistry: Frontiers and Facts in the Early Diagnosis and Prevention of Oral Diseases and Cancer. Metabolites 2022; 12:metabo12070638. [PMID: 35888762 PMCID: PMC9319392 DOI: 10.3390/metabo12070638] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/27/2022] [Accepted: 07/06/2022] [Indexed: 12/22/2022] Open
Abstract
Nowadays, with the development of new and highly sensitive, blood is not the only medium of choice for the diagnosis of several diseases and pathological conditions. Saliva is now considered a safe and non-invasive sample to study oral and systemic diseases, showing great diagnostic potential. According to several recent studies, saliva has emerged as an emerging biofluid for the early diagnosis of several diseases, indicated as a mirror of oral and systemic health and a valuable source of clinically relevant information. Indeed, several studies have observed that saliva is useful for detecting and diagnosing malignant tumours, human immunodeficiency virus, heart disease, and autoimmune diseases. The growing realisation that saliva is an inexhaustible source of information has led to the coining of the term ‘Salivaomics’, which includes five “omics” in connection with the main constituents of saliva: genome and epigenome, transcriptomics, metabolomics, lipidomics, proteomics and microbiota. All those may be changed by disease state, so they offer significant advantages in the early diagnosis and prognosis of oral diseases. The aim of the present review isto update and highlight the new frontiers of salivaomics in diagnosing and managing oral disorders, such as periodontitis, premalignant disorders, and oral squamous cell carcinoma (OSCC).
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Periodontitis may induce gut microbiota dysbiosis via salivary microbiota. Int J Oral Sci 2022; 14:32. [PMID: 35732628 PMCID: PMC9217941 DOI: 10.1038/s41368-022-00183-3] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 05/23/2022] [Accepted: 05/28/2022] [Indexed: 12/17/2022] Open
Abstract
The aim of this study was to identify whether periodontitis induces gut microbiota dysbiosis via invasion by salivary microbes. First, faecal and salivary samples were collected from periodontally healthy participants (PH group, n = 16) and patients with severe periodontitis (SP group, n = 21) and analysed by 16S ribosomal RNA sequencing. Significant differences were observed in both the faecal and salivary microbiota between the PH and SP groups. Notably, more saliva-sourced microbes were observed in the faecal samples of the SP group. Then, the remaining salivary microbes were transplanted into C57BL6/J mice (the C-PH group and the C-SP group), and it was found that the composition of the gut microbiota of the C-SP group was significantly different from that of the C-PH group, with Porphyromonadaceae and Fusobacterium being significantly enriched in the C-SP group. In the colon, the C-SP group showed significantly reduced crypt depth and zonula occludens-1 expression. The mRNA expression levels of pro-inflammatory cytokines, chemokines and tight junction proteins were significantly higher in the C-SP group. To further investigate whether salivary bacteria could persist in the intestine, the salivary microbiota was stained with carboxyfluorescein diacetate succinimidyl ester and transplanted into mice. We found that salivary microbes from both the PH group and the SP group could persist in the gut for at least 24 h. Thus, our data demonstrate that periodontitis may induce gut microbiota dysbiosis through the influx of salivary microbes.
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Moussa DG, Ahmad P, Mansour TA, Siqueira WL. Current State and Challenges of the Global Outcomes of Dental Caries Research in the Meta-Omics Era. Front Cell Infect Microbiol 2022; 12:887907. [PMID: 35782115 PMCID: PMC9247192 DOI: 10.3389/fcimb.2022.887907] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/04/2022] [Indexed: 12/20/2022] Open
Abstract
Despite significant healthcare advances in the 21st century, the exact etiology of dental caries remains unsolved. The past two decades have witnessed a tremendous growth in our understanding of dental caries amid the advent of revolutionary omics technologies. Accordingly, a consensus has been reached that dental caries is a community-scale metabolic disorder, and its etiology is beyond a single causative organism. This conclusion was based on a variety of microbiome studies following the flow of information along the central dogma of biology from genomic data to the end products of metabolism. These studies were facilitated by the unprecedented growth of the next- generation sequencing tools and omics techniques, such as metagenomics and metatranscriptomics, to estimate the community composition of oral microbiome and its functional potential. Furthermore, the rapidly evolving proteomics and metabolomics platforms, including nuclear magnetic resonance spectroscopy and/or mass spectrometry coupled with chromatography, have enabled precise quantification of the translational outcomes. Although the majority supports 'conserved functional changes' as indicators of dysbiosis, it remains unclear how caries dynamics impact the microbiota functions and vice versa, over the course of disease onset and progression. What compounds the situation is the host-microbiota crosstalk. Genome-wide association studies have been undertaken to elucidate the interaction of host genetic variation with the microbiome. However, these studies are challenged by the complex interaction of host genetics and environmental factors. All these complementary approaches need to be orchestrated to capture the key players in this multifactorial disease. Herein, we critically review the milestones in caries research focusing on the state-of-art singular and integrative omics studies, supplemented with a bibliographic network analysis to address the oral microbiome, the host factors, and their interactions. Additionally, we highlight gaps in the dental literature and shed light on critical future research questions and study designs that could unravel the complexities of dental caries, the most globally widespread disease.
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Affiliation(s)
- Dina G. Moussa
- College of Dentistry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Paras Ahmad
- College of Dentistry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Tamer A. Mansour
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA, United States
- Department of Clinical Pathology, School of Medicine, Mansoura University, Mansoura, Egypt
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Clinical helminth infections alter host gut and saliva microbiota. PLoS Negl Trop Dis 2022; 16:e0010491. [PMID: 35675339 PMCID: PMC9212162 DOI: 10.1371/journal.pntd.0010491] [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: 10/01/2021] [Revised: 06/21/2022] [Accepted: 05/12/2022] [Indexed: 11/19/2022] Open
Abstract
Background
Previous reports show altered gut bacterial profiles are associated with helminth infected individuals. Our recently published molecular survey of clinical helminthiases in Thailand border regions demonstrated a more comprehensive picture of infection prevalence when Kato Katz microscopy and copro-qPCR diagnostics were combined. We revealed that Opisthorchis viverrini, hookworm, Ascaris lumbricoides and Trichuris trichiura were the most predominant helminth infections in these regions. In the current study, we have profiled the faecal and saliva microbiota of a subset of these helminth infected participants, in order to determine if microbial changes are associated with parasite infection.
Methods
A subset of 66 faecal samples from Adisakwattana et al., (2020) were characterised for bacterial diversity using 16S rRNA gene profiling. Of these samples a subset of 24 participant matched saliva samples were also profiled for microbiota diversity. Sequence data were compiled, OTUs assigned, and diversity and abundance analysed using the statistical software Calypso.
Results
The data reported here indicate that helminth infections impact on both the host gut and oral microbiota. The profiles of faecal and saliva samples, irrespective of the infection status, were considerably different from each other, with more alpha diversity associated with saliva (p-value≤ 0.0015). Helminth infection influenced the faecal microbiota with respect to specific taxa, but not overall microbial alpha diversity. Conversely, helminth infection was associated with increased saliva microbiota alpha diversity (Chao 1 diversity indices) at both the genus (p-value = 0.042) and phylum (p-value = 0.026) taxa levels, compared to uninfected individuals. Elevated individual taxa in infected individuals saliva were noted at the genus and family levels. Since Opisthorchis viverrini infections as a prominent health concern to Thailand, this pathogen was examined separately to other helminths infections present. Individuals with an O. viverrini mono-infection displayed both increases and decreases in genera present in their faecal microbiota, while increases in three families and one order were also observed in these samples.
Discussion
In this study, helminth infections appear to alter the abundance of specific faecal bacterial taxa, but do not impact on overall bacterial alpha or beta diversity. In addition, the faecal microbiota of O. viverrini only infected individuals differed from that of other helminth single and dual infections. Saliva microbiota analyses of individuals harbouring active helminth infections presented increased levels of both bacterial alpha diversity and abundance of individual taxa. Our data demonstrate that microbial change is associated with helminthiases in endemic regions of Thailand, and that this is reflected in both faecal and saliva microbiota. To our knowledge, this is the first report of an altered saliva microbiota in helminth infected individuals. This work may provide new avenues for improved diagnostics; and an enhanced understanding of both helminth infection pathology and the interplay between helminths, bacteria and their host.
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Salivary microbiome differences in prepubertal children with and without adrenal androgen excess. Pediatr Res 2022; 91:1797-1803. [PMID: 34341500 PMCID: PMC8807752 DOI: 10.1038/s41390-021-01661-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/30/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Premature adrenarche is a condition of childhood adrenal androgen excess (AAE) in the absence of gonadotropin-dependent puberty, and has been linked to insulin resistance and progression to metabolic syndrome. Microbial dysbiosis is associated with progression of inflammatory states and chronic diseases. Here, we aimed to examine the salivary microbiomes of children with AAE and assess the relationship with adrenal androgens and metabolic parameters. METHODS In a prospective cross-sectional study of children with AAE and healthy controls, adrenal and metabolic parameters were characterized and salivary microbiome was profiled using V3-V4 16S rDNA gene amplicon sequencing. RESULTS There was increased α-diversity in AAE (5 M, 15 F) compared to controls (3 M, 8 F), with positive correlation of 11OHA4, 11KA4, testosterone, androstenedione, DHEA, and DHEAS. Subanalyses showed increased α-diversity in both overweight/obese AAE and normal weight AAE compared to normal weight controls. Genus Peptostreptococcus, Veillonella, and Streptococcus salivarius were increased in normal weight AAE. Genus Prevotella, Abiotrophia, and Neisseria were increased in overweight/obese AAE. CONCLUSION These pilot data demonstrate differences in salivary microbiome profiles of children with and without AAE. Further studies are needed to assess the causal relationships between adrenal androgens, metabolic dysfunction, and salivary microbiome composition. IMPACT This study is the first to report the salivary microbiome of prepubertal children with adrenal androgen excess (AAE). α-Diversity is increased in the salivary microbiome of children with AAE independent of weight status, and in this study cohort several serum androgens are positively associated with α-diversity. Several taxa that have been associated with periodontal disease and inflammation are found to be significantly increased in AAE.
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Chen YL, Bai L, Dilimulati D, Shao S, Qiu C, Liu T, Xu S, Bai XB, Du LJ, Zhou LJ, Lin WZ, Meng XQ, Jin YC, Liu Y, Zhang XH, Duan SZ, Jia F. Periodontitis Salivary Microbiota Aggravates Ischemic Stroke Through IL-17A. Front Neurosci 2022; 16:876582. [PMID: 35663549 PMCID: PMC9160974 DOI: 10.3389/fnins.2022.876582] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Although epidemiological studies suggest that periodontitis is tightly associated with ischemic stroke, its impact on ischemic stroke and the underlysing mechanisms are poorly understood. Recent studies have shown that alteration in gut microbiota composition influences the outcomes of ischemic stroke. In the state of periodontitis, many oral pathogenic bacteria in the saliva are swallowed and transmitted to the gut. However, the role of periodontitis microbiota in the pathogenesis and progression of ischemic stroke is unclear. Therefore, we hypothesized that the periodontitis salivary microbiota influences the gut immune system and aggravates ischemic stroke. Mice receiving gavage of periodontitis salivary microbiota showed significantly worse stroke outcomes. And these mice also manifested more severe neuroinflammation, with higher infiltration of inflammatory cells and expression of inflammatory cytokines in the ischemic brain. More accumulation of Th17 cells and IL-17+ γδ T cells were observed in the ileum. And in Kaede transgenic mice after photoconversion. Migration of CD4+ T cells and γδ T cells from the ileum to the brain was observed after ischemic stroke in photoconverted Kaede transgenic mice. Furthermore, the worse stroke outcome was abolished in the IL-17A knockout mice. These findings suggest that periodontitis salivary microbiota increased IL-17A-producing immune cells in the gut, likely promoted the migration of these cells from the gut to the brain, and subsequently provoked neuroinflammation after ischemic stroke. These findings have revealed the role of periodontitis in ischemic stroke through the gut and provided new insights into the worse outcome of ischemic stroke coexisting with periodontitis in clinical trials.
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Affiliation(s)
- Yan-Lin Chen
- Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lan Bai
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Dilirebati Dilimulati
- Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuai Shao
- Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Che Qiu
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ting Liu
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Shuo Xu
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Xue-Bing Bai
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Lin-Juan Du
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Lu-Jun Zhou
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Wen-Zhen Lin
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Xiao-Qian Meng
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Yi-Chao Jin
- Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Liu
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Xiao-Hua Zhang
- Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Xiao-Hua Zhang,
| | - Sheng-Zhong Duan
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
- Sheng-Zhong Duan,
| | - Feng Jia
- Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Neurosurgery, Nantong First People’s Hospital, The Second Affiliated Hospital of Nantong University, Nantong, China
- Feng Jia,
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Lommi S, Manzoor M, Engberg E, Agrawal N, Lakka TA, Leinonen J, Kolho KL, Viljakainen H. The Composition and Functional Capacities of Saliva Microbiota Differ Between Children With Low and High Sweet Treat Consumption. Front Nutr 2022; 9:864687. [PMID: 35558746 PMCID: PMC9085455 DOI: 10.3389/fnut.2022.864687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/04/2022] [Indexed: 01/17/2023] Open
Abstract
Excess sugar consumption—common in youth—is associated with poor health. Evidence on the relationship between sugar consumption and the oral microbiome, however, remains scarce and inconclusive. We explored whether the diversity, composition, and functional capacities of saliva microbiota differ based on the consumption of select sugary foods and drinks (“sweet treats”). Using 16S rRNA gene sequencing, we characterized saliva microbiota from 11 to 13-year-old children who participated in the Finnish Health in Teens (Fin-HIT) cohort study. The sample comprised children in the lowest (n = 227) and highest (n = 226) tertiles of sweet treat consumption. We compared differences in the alpha diversity (Shannon, inverse Simpson, and Chao1 indices), beta diversity (principal coordinates analysis based on Bray–Curtis dissimilarity), and abundance (differentially abundant operational taxonomic units (OTUs) at the genus level) between these low and high consumption groups. We performed PICRUSt2 to predict the metabolic pathways of microbial communities. No differences emerged in the alpha diversity between low and high sweet treat consumption, whereas the beta diversity differed between groups (p = 0.001). The abundance of several genera such as Streptococcus, Prevotella, Veillonella, and Selenomonas was higher in the high consumption group compared with the low consumption group following false discovery rate correction (p < 0.05). Children with high sweet treat consumption exhibited higher proportions of nitrate reduction IV and gondoate biosynthesis pathways compared with the low consumption group (p < 0.05). To conclude, sweet treat consumption shapes saliva microbiota. Children who consume a high level of sweet treats exhibited different compositions and metabolic pathways compared with children who consume low levels of sweet treats. Our findings reveal novel insights into the relationship between sugary diets and oral microbiota.
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Affiliation(s)
- Sohvi Lommi
- Department of Public Health, University of Helsinki, Helsinki, Finland.,Folkhälsan Research Center, Helsinki, Finland
| | - Muhammed Manzoor
- Department of Oral and Maxillofacial Diseases, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Elina Engberg
- Folkhälsan Research Center, Helsinki, Finland.,Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Nitin Agrawal
- Folkhälsan Research Center, Helsinki, Finland.,Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Timo A Lakka
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio, Finland.,Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland.,Foundation for Research in Health Exercise and Nutrition, Kuopio Research Institute of Exercise Medicine, Kuopio, Finland
| | - Jukka Leinonen
- Department of Clinical Dentistry, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | - Kaija-Leena Kolho
- Children's Hospital, University of Helsinki and Helsinki University Hospital (HUS), Helsinki, Finland.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Heli Viljakainen
- Folkhälsan Research Center, Helsinki, Finland.,Faculty of Medicine, University of Helsinki, Helsinki, Finland
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63
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Zhang Z, Tang D. The huge clinical potential of microbiota in the treatment of pancreatic cancer: The next frontier. Biochim Biophys Acta Rev Cancer 2022; 1877:188733. [PMID: 35483491 DOI: 10.1016/j.bbcan.2022.188733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/18/2022] [Accepted: 04/21/2022] [Indexed: 02/07/2023]
Abstract
Microbes and their metabolites are found in all body organs; their interaction with body organs can influence inflammation, immunity, and cancer development. Pancreatic cancer development is closely related to intestinal, intrapancreatic, and oral flora. The microbiota plays a regulatory role in pancreatic cancer's malignant progression and treatment resistance. Thus, the study of microbiota-host interactions has emerged as a new hot topic in pancreatic cancer treatment, with microbiota control demonstrating significant clinical potential. This review summarizes recent advances in the clinical diagnosis and treatment of pancreatic cancer, emphasizing the enormous potential for operating microbiota in pancreatic cancer treatment.
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Affiliation(s)
- Zhilin Zhang
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Dong Tang
- Department of General Surgery, Institute of General Surgery, Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China.
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64
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Silva DNDA, Casarin M, Monajemzadeh S, Bezerra BDB, Lux R, Pirih FQ. The Microbiome in Periodontitis and Diabetes. FRONTIERS IN ORAL HEALTH 2022; 3:859209. [PMID: 35464780 PMCID: PMC9024052 DOI: 10.3389/froh.2022.859209] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/14/2022] [Indexed: 12/19/2022] Open
Abstract
Objectives To perform a comprehensive and integrative review of the available literature on the potential changes in the microbiome of healthy and individuals with diabetes under periodontal health and disease. Materials and Methods The review was conducted by two independent reviewers. Indexed electronic databases (PubMed/Medline, Cochrane Library, Web of Science and Scopus) were searched, including articles published in English and dated from 5 years ago until December 2021. A manual search also was performed to identify co-related articles. Following the removal of duplicates and eligibility criteria, the articles were included in tables for analysis and described in the manuscript. Results According to this review, diabetes mellitus was associated with significant changes in the subgingival and salivary microbiome, either in its association with periodontitis or in cases of periodontal health. In addition to affecting microbial diversity in terms of taxonomy, metagenomic studies have shown that this endocrine disorder may also be directly related to increased pathogenicity in the oral microbiome. Conclusion Although the reviewed studies demonstrate important differences in the subgingival and salivary microbiome composition because of diabetes mellitus, further studies are needed to clarify the real effects of hyperglycemia on oral microbial profiles and support new diagnostic approaches and innovative treatments.
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Affiliation(s)
- Davi Neto de Araújo Silva
- Section of Periodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Maísa Casarin
- School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Sepehr Monajemzadeh
- Section of Periodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Beatriz de Brito Bezerra
- Section of Periodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Renate Lux
- Section of Periodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Flavia Q Pirih
- Section of Periodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
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65
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Bombin A, Yan S, Bombin S, Mosley JD, Ferguson JF. Obesity influences composition of salivary and fecal microbiota and impacts the interactions between bacterial taxa. Physiol Rep 2022; 10:e15254. [PMID: 35384379 PMCID: PMC8980904 DOI: 10.14814/phy2.15254] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 03/04/2022] [Accepted: 03/17/2022] [Indexed: 04/23/2023] Open
Abstract
Obesity is an increasing global health concern and is associated with a broad range of morbidities. The gut microbiota are increasingly recognized as important contributors to obesity and cardiometabolic health. This study aimed to characterize oral and gut microbial communities, and evaluate host: microbiota interactions between clinical obesity classifications. We performed 16S rRNA sequencing on fecal and salivary samples, global metabolomics profiling on plasma and stool samples, and dietary profiling in 135 healthy individuals. We grouped individuals by obesity status, based on body mass index (BMI), including lean (BMI 18-124.9), overweight (BMI 25-29.9), or obese (BMI ≥30). We analyzed differences in microbiome composition, community inter-relationships, and predicted microbial function by obesity status. We found that salivary bacterial communities of lean and obese individuals were compositionally and phylogenetically distinct. An increase in obesity status was positively associated with strong correlations between bacterial taxa, particularly with bacterial groups implicated in metabolic disorders including Fretibacterium, and Tannerella. Consumption of sweeteners, especially xylitol, significantly influenced compositional and phylogenetic diversities of salivary and fecal bacterial communities. In addition, obesity groups exhibited differences in predicted bacterial metabolic activity, which was correlated with host's metabolite concentrations. Overall, obesity was associated with distinct changes in bacterial community dynamics, particularly in saliva. Consideration of microbiome community structure and inclusion of salivary samples may improve our ability to understand pathways linking microbiota to obesity and cardiometabolic disease.
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Affiliation(s)
- Andrei Bombin
- Division of Clinical PharmacologyDepartment of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Shun Yan
- Department of GeneticsThe University of AlabamaBirminghamAlabamaUSA
| | - Sergei Bombin
- Department of Biological SciencesThe University of AlabamaTuscaloosaAlabamaUSA
| | - Jonathan D. Mosley
- Division of Clinical PharmacologyDepartment of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
- Department of Biomedical InformaticsVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Jane F. Ferguson
- Division of Cardiovascular MedicineDepartment of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
- Vanderbilt Microbiome Innovation Center (VMIC)NashvilleTennesseeUSA
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66
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D'Addario C, Pucci M, Bellia F, Girella A, Sabatucci A, Fanti F, Vismara M, Benatti B, Ferrara L, Fasciana F, Celebre L, Viganò C, Elli L, Sergi M, Maccarrone M, Buzzelli V, Trezza V, Dell'Osso B. Regulation of oxytocin receptor gene expression in obsessive-compulsive disorder: a possible role for the microbiota-host epigenetic axis. Clin Epigenetics 2022; 14:47. [PMID: 35361281 PMCID: PMC8973787 DOI: 10.1186/s13148-022-01264-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 03/18/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Obsessive-compulsive disorder (OCD) is a prevalent and severe clinical condition. Robust evidence suggests a gene-environment interplay in its etiopathogenesis, yet the underlying molecular clues remain only partially understood. In order to further deepen our understanding of OCD, it is essential to ascertain how genes interact with environmental risk factors, a cross-talk that is thought to be mediated by epigenetic mechanisms. The human microbiota may be a key player, because bacterial metabolites can act as epigenetic modulators. We analyzed, in the blood and saliva of OCD subjects and healthy controls, the transcriptional regulation of the oxytocin receptor gene and, in saliva, also the different levels of major phyla. We also investigated the same molecular mechanisms in specific brain regions of socially isolated rats showing stereotyped behaviors reminiscent of OCD as well as short chain fatty acid levels in the feces of rats. RESULTS Higher levels of oxytocin receptor gene DNA methylation, inversely correlated with gene expression, were observed in the blood as well as saliva of OCD subjects when compared to controls. Moreover, Actinobacteria also resulted higher in OCD and directly correlated with oxytocin receptor gene epigenetic alterations. The same pattern of changes was present in the prefrontal cortex of socially-isolated rats, where also altered levels of fecal butyrate were observed at the beginning of the isolation procedure. CONCLUSIONS This is the first demonstration of an interplay between microbiota modulation and epigenetic regulation of gene expression in OCD, opening new avenues for the understanding of disease trajectories and for the development of new therapeutic strategies.
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Affiliation(s)
- Claudio D'Addario
- Faculty of Bioscience, University of Teramo, Teramo, Italy. .,Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden. .,Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini, 1, 64100, Teramo, Italy.
| | | | - Fabio Bellia
- Faculty of Bioscience, University of Teramo, Teramo, Italy
| | | | | | - Federico Fanti
- Faculty of Bioscience, University of Teramo, Teramo, Italy
| | - Matteo Vismara
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milano, Milano, Italy
| | - Beatrice Benatti
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milano, Milano, Italy
| | - Luca Ferrara
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milano, Milano, Italy
| | - Federica Fasciana
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milano, Milano, Italy
| | - Laura Celebre
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milano, Milano, Italy
| | - Caterina Viganò
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milano, Milano, Italy
| | - Luca Elli
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milano, Milano, Italy
| | - Manuel Sergi
- Faculty of Bioscience, University of Teramo, Teramo, Italy
| | - Mauro Maccarrone
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.,European Center for Brain Research/Santa Lucia Foundation IRCCS, Rome, Italy
| | | | | | - Bernardo Dell'Osso
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milano, Milano, Italy. .,Department of Psychiatry, Department of Biomedical and Clinical Sciences "Luigi Sacco", Psychiatry Unit 2, ASST Sacco-Fatebenefratelli, Via G.B. Grassi, 74, 20157, Milan, Italy.
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La X, Jiang H, Chen A, Zheng H, Shen L, Chen W, Yang F, Zhang L, Cai X, Mao H, Cheng L. Profile of the oral microbiota from preconception to the third trimester of pregnancy and its association with oral hygiene practices. J Oral Microbiol 2022; 14:2053389. [PMID: 35341210 PMCID: PMC8942530 DOI: 10.1080/20002297.2022.2053389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background The oral microbiota plays vital roles in both oral and systemic health, but limited studies have explored the transition of the female oral microbiota from preconception to pregnancy along with pronounced hormonal fluctuations. Aim To characterize the oral microbiota among women in preconception and pregnancy through a prospective study and to explore the associations between the oral microbiota and oral hygiene practices. Methods A total of 202 unstimulated saliva samples were collected from 101 women in both preconception and late pregnancy. The oral microbiota was analyzed using 16S rRNA gene sequencing. Results The Ace and phylogenetic diversity (PD) index were significantly lower in the third trimester than preconception. The pathogenic taxa Prevotella and Atopobium parvulum were significantly higher during late pregnancy than preconception. Women with overall better oral hygiene practice showed lower richness and diversity in preconception compared to women with poorer oral hygiene practice. The abundance of pathogens such as Dialister during both preconception and pregnancy decreased among women with better oral hygiene practice. Conclusions The composition of the oral microbiota changed slightly from preconception to late pregnancy, with more pathogens in saliva samples during pregnancy. Improving oral hygiene practices has the potential to maintain oral micro-ecological balance.
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Affiliation(s)
- Xuena La
- School of Public Health, Key Laboratory of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Xuhui District, Shanghai,China.,Department of Non-communicable Diseases Surveillance, Shanghai Municipal Center for Disease Control and Prevention (SCDC), Changning District, Shanghai,China
| | - Hong Jiang
- School of Public Health, Key Laboratory of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Xuhui District, Shanghai,China
| | - An Chen
- Institute of Healthcare Engineering, Management and Architecture (HEMA), Department of Industrial Engineering and Management, Aalto University, Espoo, Finland
| | - Huajun Zheng
- NHC Key Laboratory of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Fudan University, Xuhui District, Shanghai,China
| | - Liandi Shen
- Department of Administrative Office, Jiading Maternal and Child Health Care Hospital, Jiading District, Shanghai,China
| | - Weiyi Chen
- School of Public Health, Key Laboratory of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Xuhui District, Shanghai,China
| | - Fengyun Yang
- Department of Administrative Office, Jiading Maternal and Child Health Care Hospital, Jiading District, Shanghai,China
| | - Lifeng Zhang
- Department of Administrative Office, Jiading Maternal and Child Health Care Hospital, Jiading District, Shanghai,China
| | - Xushan Cai
- Department of Woman Health care, Jiading Maternal and Child Health Care Hospital, Jiading District, Shanghai, China
| | - Hongfang Mao
- Department of Woman Health care, Jiading Maternal and Child Health Care Hospital, Jiading District, Shanghai, China
| | - Lu Cheng
- Department of Computer Science, Aalto University, Espoo, Finland
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68
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Identification of the specific microbial community compositions in saliva associated with periodontitis during pregnancy. Clin Oral Investig 2022; 26:4995-5005. [PMID: 35352183 DOI: 10.1007/s00784-022-04468-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/17/2022] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To identify the specific microbial community compositions in saliva associated with periodontitis during pregnancy. MATERIALS AND METHODS Unstimulated saliva samples were collected from 53 pregnant women during weeks 24-28 of gestation, and the V3-V4 regions of the 16S rRNA gene were amplified from isolated saliva DNA and sequenced. Phylum-, genus-, and species-level taxonomic compositions were separately compared between subjects with (n = 12) and without (n = 41) periodontitis. RESULTS Taxa were selected using the random forest algorithm to distinguish subjects with periodontitis at each taxonomic level, and principal component biplots were constructed to visualize the composition of selected taxa in each subject. The genus-level biplot indicated that 44 subjects clustered around the origin. The prevalence of periodontitis was significantly higher among subjects outside the cluster compared with subjects inside the cluster (6/9 [67%] vs. 6/44 [14%], respectively; p = 0.002). Subjects outside the cluster also had significantly decreased abundance of Neisseria and increased abundances of several putative periodontopathic genera. Phylum- and species-level biplots failed to discriminate subjects with periodontitis more efficiently than the genus-level biplot. CONCLUSIONS The specific taxonomic composition of the saliva microbiota in pregnant women with periodontitis could be clearly identified at the genus level. CLINICAL RELEVANCE The formula developed based on the present findings, (%Treponema + %Tannerella + %Filifactor + %Anaeroglobus)/%Neisseria, can be used to predict periodontitis during pregnancy with sensitivity and specificity values of 0.67 (8/12) and 0.95 (39/41), respectively.
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69
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Gebrayel P, Nicco C, Al Khodor S, Bilinski J, Caselli E, Comelli EM, Egert M, Giaroni C, Karpinski TM, Loniewski I, Mulak A, Reygner J, Samczuk P, Serino M, Sikora M, Terranegra A, Ufnal M, Villeger R, Pichon C, Konturek P, Edeas M. Microbiota medicine: towards clinical revolution. J Transl Med 2022; 20:111. [PMID: 35255932 PMCID: PMC8900094 DOI: 10.1186/s12967-022-03296-9] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/03/2022] [Indexed: 02/07/2023] Open
Abstract
The human gastrointestinal tract is inhabited by the largest microbial community within the human body consisting of trillions of microbes called gut microbiota. The normal flora is the site of many physiological functions such as enhancing the host immunity, participating in the nutrient absorption and protecting the body against pathogenic microorganisms. Numerous investigations showed a bidirectional interplay between gut microbiota and many organs within the human body such as the intestines, the lungs, the brain, and the skin. Large body of evidence demonstrated, more than a decade ago, that the gut microbial alteration is a key factor in the pathogenesis of many local and systemic disorders. In this regard, a deep understanding of the mechanisms involved in the gut microbial symbiosis/dysbiosis is crucial for the clinical and health field. We review the most recent studies on the involvement of gut microbiota in the pathogenesis of many diseases. We also elaborate the different strategies used to manipulate the gut microbiota in the prevention and treatment of disorders. The future of medicine is strongly related to the quality of our microbiota. Targeting microbiota dysbiosis will be a huge challenge.
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70
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Saboo K, Petrakov NV, Shamsaddini A, Fagan A, Gavis EA, Sikaroodi M, McGeorge S, Gillevet PM, Iyer RK, Bajaj JS. Stool microbiota are superior to saliva in distinguishing cirrhosis and hepatic encephalopathy using machine learning. J Hepatol 2022; 76:600-607. [PMID: 34793867 PMCID: PMC8858861 DOI: 10.1016/j.jhep.2021.11.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/29/2021] [Accepted: 11/05/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND & AIMS Saliva and stool microbiota are altered in cirrhosis. Since stool is logistically difficult to collect compared to saliva, it is important to determine their relative diagnostic and prognostic capabilities. We aimed to determine the ability of stool vs. saliva microbiota to differentiate between groups based on disease severity using machine learning (ML). METHODS Controls and outpatients with cirrhosis underwent saliva and stool microbiome analysis. Controls vs. cirrhosis and within cirrhosis (based on hepatic encephalopathy [HE], proton pump inhibitor [PPI] and rifaximin use) were classified using 4 ML techniques (random forest [RF], support vector machine, logistic regression, and gradient boosting) with AUC comparisons for stool, saliva or both sample types. Individual microbial contributions were computed using feature importance of RF and Shapley additive explanations. Finally, thresholds for including microbiota were varied between 2.5% and 10%, and core microbiome (DESeq2) analysis was performed. RESULTS Two hundred and sixty-nine participants, including 87 controls and 182 patients with cirrhosis, of whom 57 had HE, 78 were on PPIs and 29 on rifaximin were included. Regardless of the ML model, stool microbiota had a significantly higher AUC in differentiating groups vs. saliva. Regarding individual microbiota: autochthonous taxa drove the difference between controls vs. patients with cirrhosis, oral-origin microbiota the difference between PPI users/non-users, and pathobionts and autochthonous taxa the difference between rifaximin users/non-users and patients with/without HE. These were consistent with the core microbiome analysis results. CONCLUSIONS On ML analysis, stool microbiota composition is significantly more informative in differentiating between controls and patients with cirrhosis, and those with varying cirrhosis severity, compared to saliva. Despite logistic challenges, stool should be preferred over saliva for microbiome analysis. LAY SUMMARY Since it is harder to collect stool than saliva, we wanted to test whether microbes from saliva were better than stool in differentiating between healthy people and those with cirrhosis and, among those with cirrhosis, those with more severe disease. Using machine learning, we found that microbes in stool were more accurate than saliva alone or in combination, therefore, stool should be preferred for analysis and collection wherever possible.
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Affiliation(s)
- Krishnakant Saboo
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Nikita V Petrakov
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | | | - Andrew Fagan
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University and Central Virginia Veterans Healthcare System, Richmond, VA, USA
| | - Edith A Gavis
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University and Central Virginia Veterans Healthcare System, Richmond, VA, USA
| | | | - Sara McGeorge
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University and Central Virginia Veterans Healthcare System, Richmond, VA, USA
| | | | - Ravishankar K Iyer
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Jasmohan S Bajaj
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University and Central Virginia Veterans Healthcare System, Richmond, VA, USA.
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71
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Dinis M, Agnello M, Cen L, Shokeen B, He X, Shi W, Wong DTW, Lux R, Tran NC. Oral Microbiome: Streptococcus mutans/Caries Concordant-Discordant Children. Front Microbiol 2022; 13:782825. [PMID: 35250921 PMCID: PMC8891984 DOI: 10.3389/fmicb.2022.782825] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 01/13/2022] [Indexed: 01/13/2023] Open
Abstract
Dental caries remains the most common chronic disease in children, and the respective etiology is not fully understood. Though Streptococcus mutans is an important factor in the initiation and progression of caries, its presence is not always associated with the disease. The existence of caries discordant populations, in which S. mutans counts do not correlate with caries experience, poses a challenging problem. This study explored the possible correlation of S. mutans and other microorganism levels on caries-associated ecology of caries-concordant and discordant populations. A total of forty-seven children were analyzed in this study and stratified into four clinical groups based on their S. mutans levels in saliva (HS/LS: High/low S. mutans) and caries experience. Streptococcus mutans levels were determined by culture-based selective plating. The salivary microbiome of caries concordant and discordant populations was investigated by 16S rRNA gene sequencing and downstream bioinformatics analysis. The salivary microbial communities significantly clustered based on S. mutans levels and independent of their caries experience. In addition to S. mutans levels, significant differences in the abundance of other species were observed between HS and LS groups. Interestingly, disease-associated species such as Veillonella dispar, Streptococcus spp., and Prevotella spp. were significantly increased in HS groups and may contribute, in combination with S. mutans, to the caries progression. Furthermore, health-associated species exhibited higher abundance in the LS groups, such as Veillonella rogosae, Haemophilus sp., and Alloprevotella spp. but their possible contribution to the caries process remains to be elucidated. This study provides evidence that S. mutans may play a role in shaping the salivary microbial community. Our results highlight that future caries research should consider additional species as health/disease microbial markers in conjunction with S. mutans to improve diagnosis and caries management of the caries-discordant population.
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Affiliation(s)
- Márcia Dinis
- Section of Pediatric Dentistry, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Melissa Agnello
- Section of Oral Biology, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
- M2Biome LLC, San Francisco, CA, United States
| | - Lujia Cen
- Microbiology, The Forsyth Institute, Cambridge, MA, United States
| | - Bhumika Shokeen
- Section of Periodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Xuesong He
- Microbiology, The Forsyth Institute, Cambridge, MA, United States
| | - Wenyuan Shi
- Microbiology, The Forsyth Institute, Cambridge, MA, United States
| | - David T. W. Wong
- Center for Oral/Head and Neck Oncology Research, Laboratory of Salivary Diagnostics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Renate Lux
- Section of Periodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Nini Chaichanasakul Tran
- Section of Pediatric Dentistry, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
- *Correspondence: Nini Chaichanasakul Tran,
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72
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Yang F, Dinis M, Haghighi F, He X, Shi W, Chaichanasakul Tran N. Oral colonization of Candida albicans and Streptococcus mutans in children with or without fixed orthodontic appliances: A pilot study. J Dent Sci 2022; 17:451-458. [PMID: 35028070 PMCID: PMC8739723 DOI: 10.1016/j.jds.2021.07.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/15/2021] [Indexed: 01/31/2023] Open
Abstract
Background/purpose Adolescents undergoing fixed orthodontic therapy have an increased risk of oral diseases due to additional plaque accumulation sites. However, the effect of fixed orthodontics appliances (FOAs) on the colonization of Candida albicans (Ca) and Streptococcus mutans (Sm), two synergistic oral pathogens, is largely unknown and was, therefore, the primary objective of this pilot investigation. Material and methods Sixteen children aged 10–15 years were enrolled, nine in the FOA and seven in the control groups. Saliva and occlusal plaque were collected, and the Ca and Sm levels were quantified with a quantitative real-time polymerase chain reaction (qPCR) assay. Results A trend of higher Ca levels was observed in the saliva and occlusal plaque of the FOA group, while the control group contained higher levels of Sm. Furthermore, for Sm levels, a positive correlation between saliva and occlusal plaque was shown in both the FOA and control groups; in contrast, Ca levels were negatively correlated between these samples only in the FOA group. Between Ca and Sm, a positive correlation was observed in saliva and occlusal plaque in the control group; however, this relationship was disrupted in the FOA group. Conclusion Our preliminary study demonstrated that the presence of FOAs disturbs the colonization of Ca and Sm within the oral cavity. This perturbation might increase orthodontic patients’ risk for Ca- and Sm-related diseases.
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Affiliation(s)
- Fang Yang
- Section of Pediatric Dentistry, School of Dentistry, University of California Los Angeles, Los Angeles, USA.,Department of Stomatology, Qingdao Municipal Hospital, Qingdao, Shandong Province, China.,Single-Cell Center, Qingdao Institute of Bioenergy and Bioprocess Technology, Qingdao, Shandong Province, China
| | - Márcia Dinis
- Section of Pediatric Dentistry, School of Dentistry, University of California Los Angeles, Los Angeles, USA
| | - Farnoosh Haghighi
- Section of Periodontics, Division of Constitutive & Regenerative Sciences, School of Dentistry, University of California Los Angeles, Los Angeles, USA
| | - Xuesong He
- The Forsyth Institute, Microbiology, Cambridge, USA
| | - Wenyuan Shi
- The Forsyth Institute, Microbiology, Cambridge, USA
| | - Nini Chaichanasakul Tran
- Section of Pediatric Dentistry, School of Dentistry, University of California Los Angeles, Los Angeles, USA
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73
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Wirth R, Pap B, Maróti G, Vályi P, Komlósi L, Barta N, Strang O, Minárovits J, Kovács KL. Toward Personalized Oral Diagnosis: Distinct Microbiome Clusters in Periodontitis Biofilms. Front Cell Infect Microbiol 2022; 11:747814. [PMID: 35004342 PMCID: PMC8727345 DOI: 10.3389/fcimb.2021.747814] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/29/2021] [Indexed: 12/21/2022] Open
Abstract
Periodontitis is caused by pathogenic subgingival microbial biofilm development and dysbiotic interactions between host and hosted microbes. A thorough characterization of the subgingival biofilms by deep amplicon sequencing of 121 individual periodontitis pockets of nine patients and whole metagenomic analysis of the saliva microbial community of the same subjects were carried out. Two biofilm sampling methods yielded similar microbial compositions. Taxonomic mapping of all biofilms revealed three distinct microbial clusters. Two clinical diagnostic parameters, probing pocket depth (PPD) and clinical attachment level (CAL), correlated with the cluster mapping. The dysbiotic microbiomes were less diverse than the apparently healthy ones of the same subjects. The most abundant periodontal pathogens were also present in the saliva, although in different representations. The single abundant species Tannerella forsythia was found in the diseased pockets in about 16–17-fold in excess relative to the clinically healthy sulcus, making it suitable as an indicator of periodontitis biofilms. The discrete microbial communities indicate strong selection by the host immune system and allow the design of targeted antibiotic treatment selective against the main periodontal pathogen(s) in the individual patients.
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Affiliation(s)
- Roland Wirth
- Department of Biotechnology, University of Szeged, Szeged, Hungary
| | - Bernadett Pap
- Biological Research Center, Institute of Plant Biology, Szeged, Hungary
| | - Gergely Maróti
- Biological Research Center, Institute of Plant Biology, Szeged, Hungary
| | - Péter Vályi
- Department of Periodontology, University of Szeged, Szeged, Hungary
| | - Laura Komlósi
- Department of Oral Surgery, University of Szeged, Szeged, Hungary
| | - Nikolett Barta
- Department of Biotechnology, University of Szeged, Szeged, Hungary
| | - Orsolya Strang
- Department of Biotechnology, University of Szeged, Szeged, Hungary.,Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary
| | - János Minárovits
- Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary
| | - Kornél L Kovács
- Department of Biotechnology, University of Szeged, Szeged, Hungary.,Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary
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74
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Jacob KM, Reguera G. Competitive advantage of oral streptococci for colonization of the middle ear mucosa. Biofilm 2022; 4:100067. [PMID: 35146417 PMCID: PMC8818537 DOI: 10.1016/j.bioflm.2022.100067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 12/17/2021] [Accepted: 01/10/2022] [Indexed: 10/29/2022] Open
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75
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Zagury-Orly I, Khaouam N, Noujaim J, Desrosiers MY, Maniakas A. The Effect of Radiation and Chemoradiation Therapy on the Head and Neck Mucosal Microbiome: A Review. Front Oncol 2021; 11:784457. [PMID: 34926301 PMCID: PMC8674486 DOI: 10.3389/fonc.2021.784457] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/11/2021] [Indexed: 12/12/2022] Open
Abstract
Radiation (RT) and chemoradiation therapy (CRT) play an essential role in head and neck cancer treatment. However, both cause numerous side effects in the oral cavity, paranasal sinuses, and pharynx, having deleterious consequences on patients’ quality of life. Concomitant with significant advances in radiation oncology, much attention has turned to understanding the role of the microbiome in the pathogenesis of treatment-induced tissue toxicity, to ultimately explore microbiome manipulation as a therapeutic intervention. This review sought to discuss current publications investigating the impact of RT and CRT-induced changes on the head and neck microbiome, using culture-independent molecular methods, and propose opportunities for future directions. Based on 13 studies derived from a MEDLINE, EMBASE, and Web of Science search on November 7, 2021, use of molecular methods has uncovered various phyla and genera in the head and neck microbiome, particularly the oral microbiome, not previously known using culture-based methods. However, limited research has investigated the impact of RT/CRT on subsites other than the oral cavity and none of the studies aimed to examine the relationship between the head and neck microbiome and treatment effectiveness. Findings from this review provide helpful insights on our current understanding of treatment-induced oral mucositis, dental plaque, and caries formation and highlight the need for future research to examine the effect of RT/CRT on the sinonasal and oropharyngeal microbiome. In addition, future research should use larger cohorts, examine the impact of the microbiome on treatment response, and study the effect of manipulating the microbiome to overcome therapy resistance.
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Affiliation(s)
- Ivry Zagury-Orly
- Faculty of Medicine, Université de Montréal, Montreal, QC, Canada
| | - Nader Khaouam
- Department of Radiation Oncology, Hôpital Maisonneuve-Rosemont, Montreal, QC, Canada
| | - Jonathan Noujaim
- Department of Oncology, Hôpital Maisonneuve-Rosemont, Montreal, QC, Canada
| | - Martin Y Desrosiers
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada.,Division of Otolaryngology-Head and Neck Surgery, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Anastasios Maniakas
- Division of Otolaryngology-Head and Neck Surgery, Hôpital Maisonneuve-Rosemont, Montreal, QC, Canada.,Department of Experimental Surgery, McGill University, Montreal, QC, Canada.,Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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76
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DeClercq V, Nearing JT, Langille MGI. Investigation of the impact of commonly used medications on the oral microbiome of individuals living without major chronic conditions. PLoS One 2021; 16:e0261032. [PMID: 34882708 PMCID: PMC8659300 DOI: 10.1371/journal.pone.0261032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 11/22/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Commonly used medications produce changes in the gut microbiota, however, the impact of these medications on the composition of the oral microbiota is understudied. METHODS Saliva samples were obtained from 846 females and 368 males aged 35-69 years from a Canadian population cohort, the Atlantic Partnership for Tomorrow's Health (PATH). Samples were analyzed by 16S rRNA gene sequencing and differences in microbial community compositions between nonusers, single-, and multi-drug users as well as the 3 most commonly used medications (thyroid hormones, statins, and proton pump inhibitors (PPI)) were examined. RESULTS Twenty-six percent of participants were taking 1 medication and 21% were reported taking 2 or more medications. Alpha diversity indices of Shannon diversity, Evenness, Richness, and Faith's phylogenetic diversity were similar among groups, likewise beta diversity as measured by Bray-Curtis dissimilarity (R2 = 0.0029, P = 0.053) and weighted UniFrac distances (R2 = 0.0028, P = 0.161) were non-significant although close to our alpha value threshold (P = 0.05). After controlling for covariates (sex, age, BMI), six genera (Saprospiraceae uncultured, Bacillus, Johnsonella, Actinobacillus, Stenotrophomonas, and Mycoplasma) were significantly different from non-medication users. Thyroid hormones, HMG-CoA reductase inhibitors (statins) and PPI were the most reported medications. Shannon diversity differed significantly among those taking no medication and those taking only thyroid hormones, however, there were no significant difference in other measures of alpha- or beta diversity with single thyroid hormone, statin, or PPI use. Compared to participants taking no medications, the relative abundance of eight genera differed significantly in participants taking thyroid hormones, six genera differed in participants taking statins, and no significant differences were observed with participants taking PPI. CONCLUSION The results from this study show negligible effect of commonly used medications on microbial diversity and small differences in the relative abundance of specific taxa, suggesting a minimal influence of commonly used medication on the salivary microbiome of individuals living without major chronic conditions.
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Affiliation(s)
- Vanessa DeClercq
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Community Health and Epidemiology, Dalhousie University, Halifax, Nova Scotia, Canada
- * E-mail:
| | - Jacob T. Nearing
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Morgan G. I. Langille
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
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77
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Daniele S, Scarfò G, Ceccarelli L, Fusi J, Zappelli E, Biagini D, Lomonaco T, Di Francesco F, Franzoni F, Martini C. The Mediterranean Diet Positively Affects Resting Metabolic Rate and Salivary Microbiota in Human Subjects: A Comparison with the Vegan Regimen. BIOLOGY 2021; 10:biology10121292. [PMID: 34943207 PMCID: PMC8699008 DOI: 10.3390/biology10121292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 01/02/2023]
Abstract
Simple Summary Salivary microbiota has been shown to be individualized and influenced by genetic and environmental factors, including macronutrient intake and lifestyle. Herein, the effect of two long-term dietary patterns, the Mediterranean and the vegan diet, was analyzed on oral microbiota composition and metabolic profile of human subjects. Moreover, we correlated microbial species to metabolic parameters. Subjects following the Mediterranean diet had a wider spectrum of oral bacteria and a better metabolic profile compared to the vegan diet, confirming the positive effects of a Mediterranean diet. Abstract Salivary microbiota, comprising bacteria shed from oral surfaces, has been shown to be individualized, temporally stable, and influenced by macronutrient intake and lifestyle. Nevertheless, the effect of long-term dietary patterns on oral microbiota composition and the relationship between oral microbiota composition and metabolic rate remains to be examined. Herein, salivary microbiota composition and metabolic profile were analyzed in human subjects with vegan (VEG) or Mediterranean (MED) long-term dietary patterns. MED subjects presented significantly higher percentages of Subflava and Prevotella species as compared to VEG ones. Moreover, MED subjects showed a lower carbohydrate and a higher lipid consumption than VEG subjects, and, accordingly, a significantly higher basal metabolic rate (BMR) and a lower respiratory quotient (RQ). Prevotella abundance was demonstrated to be inversely related to RQ and carbohydrate consumption, whereas Subflava percentages were demonstrated to be positively correlated to BMR. Lactobacillus abundance, which was inversely related to Subflava presence in MED subjects, was associated with decreased BMR (Harris–Benedict) values. Overall, our data evidence the influence of macronutrient intake on metabolic profile and oral microbiota and confirm the positive effects of the Mediterranean diet on BMR and on the abundance of microbial species associated with a better macronutrient metabolism.
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Affiliation(s)
- Simona Daniele
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (S.D.); (L.C.); (E.Z.); (C.M.)
| | - Giorgia Scarfò
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, 56126 Pisa, Italy; (G.S.); (J.F.)
| | - Lorenzo Ceccarelli
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (S.D.); (L.C.); (E.Z.); (C.M.)
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Jonathan Fusi
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, 56126 Pisa, Italy; (G.S.); (J.F.)
| | - Elisa Zappelli
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (S.D.); (L.C.); (E.Z.); (C.M.)
| | - Denise Biagini
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56126 Pisa, Italy; (D.B.); (T.L.); (F.D.F.)
| | - Tommaso Lomonaco
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56126 Pisa, Italy; (D.B.); (T.L.); (F.D.F.)
| | - Fabio Di Francesco
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56126 Pisa, Italy; (D.B.); (T.L.); (F.D.F.)
| | - Ferdinando Franzoni
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, 56126 Pisa, Italy; (G.S.); (J.F.)
- Correspondence: ; Tel.: +39-050-2211857; Fax: +39-050-40834
| | - Claudia Martini
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (S.D.); (L.C.); (E.Z.); (C.M.)
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78
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Li S, Su B, He QS, Wu H, Zhang T. Alterations in the oral microbiome in HIV infection: causes, effects and potential interventions. Chin Med J (Engl) 2021; 134:2788-2798. [PMID: 34670249 PMCID: PMC8667981 DOI: 10.1097/cm9.0000000000001825] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Indexed: 12/02/2022] Open
Abstract
ABSTRACT A massive depletion of CD4+ T lymphocytes has been described in early and acute human immunodeficiency virus (HIV) infection, leading to an imbalance between the human microbiome and immune responses. In recent years, a growing interest in the alterations in gut microbiota in HIV infection has led to many studies; however, only few studies have been conducted to explore the importance of oral microbiome in HIV-infected individuals. Evidence has indicated the dysbiosis of oral microbiota in people living with HIV (PLWH). Potential mechanisms might be related to the immunodeficiency in the oral cavity of HIV-infected individuals, including changes in secretory components such as reduced levels of enzymes and proteins in saliva and altered cellular components involved in the reduction and dysfunction of innate and adaptive immune cells. As a result, disrupted oral immunity in HIV-infected individuals leads to an imbalance between the oral microbiome and local immune responses, which may contribute to the development of HIV-related diseases and HIV-associated non-acquired immunodeficiency syndrome comorbidities. Although the introduction of antiretroviral therapy (ART) has led to a significant decrease in occurrence of the opportunistic oral infections in HIV-infected individuals, the dysbiosis in oral microbiome persists. Furthermore, several studies with the aim to investigate the ability of probiotics to regulate the dysbiosis of oral microbiota in HIV-infected individuals are ongoing. However, the effects of ART and probiotics on oral microbiome in HIV-infected individuals remain unclear. In this article, we review the composition of the oral microbiome in healthy and HIV-infected individuals and the possible effect of oral microbiome on HIV-associated oral diseases. We also discuss how ART and probiotics influence the oral microbiome in HIV infection. We believe that a deeper understanding of composition and function of the oral microbiome is critical for the development of effective preventive and therapeutic strategies for HIV infection.
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Affiliation(s)
- Shuang Li
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Bin Su
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Qiu-Shui He
- Institute of Biomedicine, Research Center for Infections and Immunity, University of Turku, Turku 20520, Finland
| | - Hao Wu
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Tong Zhang
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
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79
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Skallevold HE, Vallenari EM, Sapkota D. Salivary Biomarkers in Lung Cancer. Mediators Inflamm 2021; 2021:6019791. [PMID: 34690552 PMCID: PMC8528626 DOI: 10.1155/2021/6019791] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 09/13/2021] [Accepted: 09/21/2021] [Indexed: 12/17/2022] Open
Abstract
A very low percentage of lung cancer (LC) cases are discovered at an early and treatable stage of the disease, leading to an abysmally low 5-year survival rate. This underscores the immediate necessity for improved diagnostic, prognostic, and predictive biomarkers for LC. Biopsied lung tissue, blood, and plasma are common sources used for LC diagnosis and monitoring of the disease. A growing number of studies have reported saliva to be a useful biological sample for early and noninvasive detection of oral and systemic diseases. Nevertheless, salivary biomarker discovery remains underresearched. Here, we have compiled the available literature to provide an overview of the current understanding of salivary markers for LC detection and provided perspectives for future clinical significance. Valuable markers with diagnostic and prognostic potentials in LC have been discovered in saliva, including metabolic (catalase activity, triene conjugates, and Schiff bases), inflammatory (interleukin 10, C-X-C motif chemokine ligand 10), proteomic (haptoglobin, zinc-α-2-glycoprotein, and calprotectin), genomic (epidermal growth factor receptor), and microbial candidates (Veillonella and Streptococcus). In combination, with each other and with other established screening methods, these salivary markers could be useful for improving early detection of the disease and ultimately improve the survival odds of LC patients. The existing literature suggests that saliva is a promising biological sample for identification and validation of biomarkers in LC, but how saliva can be utilized most effectively in a clinical setting for LC management is still under investigation.
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Affiliation(s)
- Hans E. Skallevold
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo 0316, Norway
| | - Evan M. Vallenari
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo 0316, Norway
| | - Dipak Sapkota
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo 0316, Norway
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80
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Belstrøm D, Constancias F, Markvart M, Sikora M, Sørensen CE, Givskov M. Transcriptional Activity of Predominant Streptococcus Species at Multiple Oral Sites Associate With Periodontal Status. Front Cell Infect Microbiol 2021; 11:752664. [PMID: 34621696 PMCID: PMC8490622 DOI: 10.3389/fcimb.2021.752664] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 09/07/2021] [Indexed: 01/22/2023] Open
Abstract
Background Streptococcus species are predominant members of the oral microbiota in both health and diseased conditions. The purpose of the present study was to explore if different ecological characteristics, such as oxygen availability and presence of periodontitis, associates with transcriptional activity of predominant members of genus Streptococcus. We tested the hypothesis that genetically closely related Streptococcus species express different transcriptional activities in samples collected from environments with critically different ecological conditions determined by site and inflammatory status. Methods Metagenomic and metatranscriptomic data was retrieved from 66 oral samples, subgingival plaque (n=22), tongue scrapings (n=22) and stimulated saliva (n=22) collected from patients with periodontitis (n=11) and orally healthy individuals (n=11). Species-specific transcriptional activity was computed as Log2(RNA/DNA), and transcriptional activity of predominant Streptococcus species was compared between multiple samples collected from different sites in the same individual, and between individuals with different oral health status. Results The predominant Streptococcus species were identified with a site-specific colonization pattern of the tongue and the subgingival plaque. A total of 11, 4 and 2 pathways expressed by S. parasanguinis, S. infantis and S. salivarius, respectively, were recorded with significantly higher transcriptional activity in saliva than in tongue biofilm in healthy individuals. In addition, 18 pathways, including pathways involved in synthesis of peptidoglycan, amino acid biosynthesis, glycolysis and purine nucleotide biosynthesis expressed by S. parasanguinis and 3 pathways expressed by S. salivarius were identified with significantly less transcriptional activity in patients with periodontitis. Conclusion Data from the present study significantly demonstrates the association of site-specific ecological conditions and presence of periodontitis with transcriptional activity of the predominant Streptococcus species of the oral microbiota. In particular, pathways expressed by S. parasanguinis being involved in peptidoglycan, amino acid biosynthesis, glycolysis, and purine nucleotide biosynthesis were identified to be significantly associated with oral site and/or inflammation status.
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Affiliation(s)
- Daniel Belstrøm
- Section for Clinical Oral Microbiology, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Florentin Constancias
- Laboratory of Food Biotechnology, Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland.,Singapore Centre for Environmental Life Sciences Engineering (SCELSE) Nanyang Technological University, Singapore, Singapore
| | - Merete Markvart
- Section for Clinical Oral Microbiology, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Martin Sikora
- Lundbeck Foundation GeoGenetics Centre, Globe Institute, University of Copenhagen, Copenhagen, Denmark
| | - Christiane Elisabeth Sørensen
- Section for Clinical Oral Microbiology, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Michael Givskov
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE) Nanyang Technological University, Singapore, Singapore.,Costerton Biofilm Center, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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81
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Schwartz JL, Peña N, Kawar N, Zhang A, Callahan N, Robles SJ, Griebel A, Adami GR. Old age and other factors associated with salivary microbiome variation. BMC Oral Health 2021; 21:490. [PMID: 34602059 PMCID: PMC8489047 DOI: 10.1186/s12903-021-01828-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 08/27/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Many factors can contribute to the exact makeup of the salivary microbiome. Differences in the oral microbiome occur with old age, which may be due to oral conditions and diseases associated with old age, such as edentulism, as well as other unknown causes. METHODS The salivary microbiome was sampled in patients from a large urban clinic. For all subjects age, gender, periodontal status, caries status, presence of edentulism, medications, and tobacco usage were recorded. Multifactor analysis was used to study variation in salivary microbiome profiles linked to these factors. RESULTS In the population sampled, there were significantly higher numbers of edentulous subjects, and increased levels of polypharmacy found with aging. Large differences in alpha diversity and beta diversity of the salivary microbiome in the old age group were largely linked to edentulism. However, multivariable analysis revealed, even after adjusting for differences in edentulism, polypharmacy, tobacco usage, periodontal disease, caries level, and gender, that old age itself was associated with lower levels of taxa Porphyromonas endodontalis, Alloprevotella tannerae, Filifactor alocis, Treponema, Lautropia Mirabilis and Pseudopropionibacterium sp._HMT_194. Surprisingly, of these taxa, most were ones known to reside on or near tooth surfaces. CONCLUSIONS Another factor or factors beyond edentulism, polypharmacy and periodontal disease play a role in the differences seen in oral microbiome with old age. The nature of this factor(s) is not known.
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Affiliation(s)
- Joel L Schwartz
- Department of Oral Medicine and Diagnostics, College of Dentistry, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL, 60612, USA
| | - Natalia Peña
- Department of Oral Medicine and Diagnostics, College of Dentistry, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL, 60612, USA
| | - Nadia Kawar
- Department of Periodontics, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - Andrew Zhang
- Department of Oral Medicine and Diagnostics, College of Dentistry, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL, 60612, USA
| | - Nicholas Callahan
- Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - Steven J Robles
- Department of Oral Medicine and Diagnostics, College of Dentistry, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL, 60612, USA
| | - Andrew Griebel
- Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - Guy R Adami
- Department of Oral Medicine and Diagnostics, College of Dentistry, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL, 60612, USA.
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Periodontitis associates with species-specific gene expression of the oral microbiota. NPJ Biofilms Microbiomes 2021; 7:76. [PMID: 34556654 PMCID: PMC8460658 DOI: 10.1038/s41522-021-00247-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 08/18/2021] [Indexed: 12/12/2022] Open
Abstract
The purpose of the present investigation was to characterize species-specific bacterial activity of the oral microbiota in periodontitis. We tested the hypotheses that chronic inflammation, i.e., periodontitis, associates with bacterial gene expression of the oral microbiota. Oral microbial samples were collected from three oral sites—subgingival plaque, tongue, and saliva from patients with periodontitis and healthy controls. Paired metagenomics and metatranscriptomics were used to perform concomitant characterization of taxonomic composition and to determine species-specific bacterial activity as expressed by the ratio of specific messenger RNA reads to their corresponding genomic DNA reads. Here, we show the association of periodontitis with bacterial gene expression of the oral microbiota. While oral site was the main determinant of taxonomic composition as well as bacterial gene expression, periodontitis was significantly associated with a reduction of carbohydrate metabolism of the oral microbiota at three oral sites (subgingival plaque, tongue, and saliva). Data from the present study revealed the association of periodontitis with bacterial gene expression of the oral microbiota. Conditions of periodontitis was associated with bacterial activity of local subgingival plaque, but also on tongue and the salivary microbiota. Collectively, data suggest that periodontitis associates with impaired carbohydrate metabolism of the oral microbiota. Future longitudinal and interventional studies are warranted to evaluate the potential pathogenic role of impaired bacterial carbohydrate metabolism not only in periodontitis but also in other diseases with low-grade inflammation, such as type 2 diabetes mellitus.
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83
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Pereira AM, Clemente A. Dogs' Microbiome From Tip to Toe. Top Companion Anim Med 2021; 45:100584. [PMID: 34509665 DOI: 10.1016/j.tcam.2021.100584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 09/01/2021] [Accepted: 09/07/2021] [Indexed: 12/14/2022]
Abstract
Microbiota and microbiome, which refers, respectively, to the microorganisms and conjoint of microorganisms and genes are known to live in symbiosis with hosts, being implicated in health and disease. The advancements and cost reduction associated with high-throughput sequencing techniques have allowed expanding the knowledge of microbial communities in several species, including dogs. Throughout their body, dogs harbor distinct microbial communities according to the location (e.g., skin, ear canal, conjunctiva, respiratory tract, genitourinary tract, gut), which have been a target of study mostly in the last couple of years. Although there might be a core microbiota for different body sites, shared by dogs, it is likely influenced by intrinsic factors such as age, breed, and sex, but also by extrinsic factors such as the environment (e.g., lifestyle, urban vs rural), and diet. It starts to become clear that some medical conditions are mediated by alterations in microbiota namely dysbiosis. Moreover, understanding microbial colonization and function can be used to prevent medical conditions, for instance, modulation of gut microbiota of puppies is more effective to ensure a healthy gut than interventions in adults. This paper gathers current knowledge of dogs' microbial communities, exploring their function, implications in the development of diseases, and potential interactions among communities while providing hints for further research.
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Affiliation(s)
- Ana Margarida Pereira
- University of the Azores, Faculty of Agricultural and Environmental Sciences, Institute of Agricultural and Environmental Research and Technology (IITAA). Rua Capitão João d'Ávila, Azores, Portugal.
| | - Alfonso Clemente
- Department of Physiology and Biochemistry in Animal Nutrition, Estacion Experimental del Zaidin, Spanish National Research Council (CSIC), Granada, Spain
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84
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Arthur RA, Dos Santos Bezerra R, Ximenez JPB, Merlin BL, de Andrade Morraye R, Neto JV, Fava NMN, Figueiredo DLA, de Biagi CAO, Montibeller MJ, Guimarães JB, Alves EG, Schreiner M, da Costa TS, da Silva CFL, Malheiros JM, da Silva LHB, Ribas GT, Achallma DO, Braga CM, Andrade KFA, do Carmo Alves Martins V, Dos Santos GVN, Granatto CF, Terin UC, Sanches IH, Ramos DE, Garay-Malpartida HM, de Souza GMP, Slavov SN, Silva WA. Microbiome and oral squamous cell carcinoma: a possible interplay on iron metabolism and its impact on tumor microenvironment. Braz J Microbiol 2021; 52:1287-1302. [PMID: 34002353 PMCID: PMC8324744 DOI: 10.1007/s42770-021-00491-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 04/06/2021] [Indexed: 12/23/2022] Open
Abstract
There is increasing evidence showing positive association between changes in oral microbiome and the occurrence of oral squamous cell carcinoma (OSCC). Alcohol- and nicotine-related products can induce microbial changes but are still unknown if these changes are related to cancerous lesion sites. In an attempt to understand how these changes can influence the OSCC development and maintenance, the aim of this study was to investigate the oral microbiome linked with OSCC as well as to identify functional signatures and associate them with healthy or precancerous and cancerous sites. Our group used data of oral microbiomes available in public repositories. The analysis included data of oral microbiomes from electronic cigarette users, alcohol consumers, and precancerous and OSCC samples. An R-based pipeline was used for taxonomic and functional prediction analysis. The Streptococcus spp. genus was the main class identified in the healthy group. Haemophilus spp. predominated in precancerous lesions. OSCC samples revealed a higher relative abundance compared with the other groups, represented by an increased proportion of Fusobacterium spp., Prevotella spp., Haemophilus spp., and Campylobacter spp. Venn diagram analysis showed 52 genera exclusive of OSCC samples. Both precancerous and OSCC samples seemed to present a specific associated functional pattern. They were menaquinone-dependent protoporphyrinogen oxidase pattern enhanced in the former and both 3',5'-cyclic-nucleotide phosphodiesterase (purine metabolism) and iron(III) transport system ATP-binding protein enhanced in the latter. We conclude that although precancerous and OSCC samples present some differences on microbial profile, both microbiomes act as "iron chelators-like" potentially contributing to tumor growth.
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Affiliation(s)
- Rodrigo Alex Arthur
- Preventive and Community Dentistry Department, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, 90035-003, Brazil
| | - Rafael Dos Santos Bezerra
- Postgraduate Program in Clinical Oncology, Stem Cells and Cell Therapy, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
| | - João Paulo Bianchi Ximenez
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Bruna Laís Merlin
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, SP, 13418-900, Brazil
| | - Raphael de Andrade Morraye
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
- Ribeirão Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, 14049-900, Brazil
| | - João Valentini Neto
- Department of Nutrition, School of Public Health, University of Sao Paulo, São Paulo, SP, 01246-904, Brazil
| | - Natália Melo Nasser Fava
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, São Carlos, SP, 13563-120, Brazil
| | - David Livingstone Alves Figueiredo
- Institute for Cancer Research (IPEC), Guarapuava, PR, 85015-430, Brazil
- Department of Medicine, UNICENTRO, Guarapuava, PR, 85015-430, Brazil
| | - Carlos Alberto Oliveira de Biagi
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Maria Jara Montibeller
- Department of Food and Nutrition, School of Pharmaceutical Sciences, São Paulo State University, Araraquara, SP, Brazil
| | - Jhefferson Barbosa Guimarães
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | - Ellen Gomes Alves
- Undergraduate in Biological Sciences, Institute of Health Sciences, Universidade Paulista, Ribeirão Preto, SP, Brazil
| | - Monique Schreiner
- Graduate Program in Bioinformatics, Professional and Technological Education Sector, Federal University of Paraná, Curitiba, PR, Brazil
| | - Tiago Silva da Costa
- Department of Biological Sciences and Health, Federal University of Amapá, Macapá, AP, Brazil
| | - Charlie Felipe Liberati da Silva
- Graduate Program in Bioinformatics, Professional and Technological Education Sector, Federal University of Paraná, Curitiba, PR, Brazil
| | | | - Luan Henrique Burda da Silva
- Graduate Program in Bioinformatics, Professional and Technological Education Sector, Federal University of Paraná, Curitiba, PR, Brazil
| | - Guilherme Taborda Ribas
- Graduate Program in Bioinformatics, Professional and Technological Education Sector, Federal University of Paraná, Curitiba, PR, Brazil
| | - Daisy Obispo Achallma
- Laboratorios de Investigación y Desarrollo, FARVET, Chincha Alta, Ica, Perú & Centro de Investigación de Genética y Biología Molecular (CIGBM), Universidad de San Martín de Porres, Lima, Perú
| | - Camila Margalho Braga
- Graduate Program in Parasitic Biology in the Amazon, Pará State University, Belém, PA, Brazil
| | - Karen Flaviane Assis Andrade
- Department of Electrical and Biomedical Engineering, Institute of Technology, Federal University of Pará, Belém, PA, Brazil
| | | | | | | | | | - Igor Henrique Sanches
- Institute of Pathology Tropical and Public Health, Federal University of Goiás, Goiânia, GO, Brazil
| | - Diana Estefania Ramos
- Department of Oral; Maxillofacial Surgery, and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Gabriela Marcelino Pereira de Souza
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
| | - Svetoslav Nanev Slavov
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
| | - Wilson Araújo Silva
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil.
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil.
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501 - 14051-140 Ribeirão Preto, São Paulo, Brasil.
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85
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Chmielewski M, Załachowska O, Rybakowska W, Komandera D, Knura A, Albert A, Kostanowicz J, Garbacz K. COVID-19 in dental care: What do we know? J Oral Microbiol 2021; 13:1957351. [PMID: 34377355 PMCID: PMC8330703 DOI: 10.1080/20002297.2021.1957351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 01/04/2023] Open
Abstract
SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) is primarily transmitted by airborne droplets and its spread is favored by close human contact, thus the COVID-19 pandemic is the new challenge in dental practice. The oral cavity was considered as a SARS-CoV-2 reservoir, the viruses were detected in the saliva and periodontal pockets of infected persons. Therefore, aside from the most common symptoms, COVID-19 can manifest as lesions in the oral cavity. Due to the high risk of cross-contamination in the dental office, new precautionary measures were implemented in professional dental care to ensure safety for both, dental staff and patients. Given the dynamically changing situation, dental practitioners should follow local guidelines and implement them according to current needs and available resources. The key to success is to reduce the risk of cross-infection with SARS-CoV-2 at no cost to the good oral health of the population.
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Affiliation(s)
- Marek Chmielewski
- Oral Microbiology Student Scientific Club, Medical Faculty, Medical University of Gdansk, Gdansk, Poland
| | - Oliwia Załachowska
- Oral Microbiology Student Scientific Club, Medical Faculty, Medical University of Gdansk, Gdansk, Poland
| | - Weronika Rybakowska
- Oral Microbiology Student Scientific Club, Medical Faculty, Medical University of Gdansk, Gdansk, Poland
| | - Dominika Komandera
- Oral Microbiology Student Scientific Club, Medical Faculty, Medical University of Gdansk, Gdansk, Poland
| | - Agata Knura
- Oral Microbiology Student Scientific Club, Medical Faculty, Medical University of Gdansk, Gdansk, Poland
| | - Adrian Albert
- Oral Microbiology Student Scientific Club, Medical Faculty, Medical University of Gdansk, Gdansk, Poland
| | - Julia Kostanowicz
- Oral Microbiology Student Scientific Club, Medical Faculty, Medical University of Gdansk, Gdansk, Poland
| | - Katarzyna Garbacz
- Department of Oral Microbiology, Medical Faculty, Medical University of Gdansk, Gdansk, Poland
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86
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Liu Y, Huang W, Wang J, Ma J, Zhang M, Lu X, Liu J, Kou Y. Multifaceted Impacts of Periodontal Pathogens in Disorders of the Intestinal Barrier. Front Immunol 2021; 12:693479. [PMID: 34386004 PMCID: PMC8353228 DOI: 10.3389/fimmu.2021.693479] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 07/12/2021] [Indexed: 12/12/2022] Open
Abstract
Periodontal disease, a common inflammatory disease, is considered a hazardous factor that contributes to the development of diseases of the digestive system as well as other systems. The bridge between periodontitis and systemic diseases is believed to be periodontal pathogens. The intestine, as part of the lower gastrointestinal tract, has a close connection with the oral cavity. Within the intestine, the intestinal barrier acts as a multifunctional system including microbial, mucous, physical and immune barrier. The intestinal barrier forms the body's first line of defense against external pathogens; its breakdown can lead to pathological changes in the gut and other organs or systems. Reports in the literature have described how oral periodontal pathogens and pathobiont-reactive immune cells can transmigrate to the intestinal mucosa, causing the destruction of intestinal barrier homeostasis. Such findings might lead to novel ideas for investigating the relationship between periodontal disease and other systemic diseases. This review summarizes studies on the effects of periodontal pathogens on the intestinal barrier, which might contribute to understanding the link between periodontitis and gastrointestinal diseases.
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Affiliation(s)
- Yingman Liu
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Wenxuan Huang
- School of Stomatology, Shenyang Medical College, Shenyang, China
| | - Jiaqi Wang
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Jiaojiao Ma
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Manman Zhang
- Department of Oral Biology, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Xiaoying Lu
- Department of Oral Biology, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Jie Liu
- Science Experiment Center, China Medical University, Shenyang, China
| | - Yurong Kou
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
- Department of Oral Biology, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
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87
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Oliveira SG, Nishiyama RR, Trigo CAC, Mattos-Guaraldi AL, Dávila AMR, Jardim R, Aguiar FHB. Core of the saliva microbiome: an analysis of the MG-RAST data. BMC Oral Health 2021; 21:351. [PMID: 34271900 PMCID: PMC8283749 DOI: 10.1186/s12903-021-01719-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 07/07/2021] [Indexed: 11/10/2022] Open
Abstract
Background Oral microbiota is considered as the second most complex in the human body and its dysbiosis can be responsible for oral diseases. Interactions between the microorganism communities and the host allow establishing the microbiological proles. Identifying the core microbiome is essential to predicting diseases and changes in environmental behavior from microorganisms. Methods Projects containing the term “SALIVA”, deposited between 2014 and 2019 were recovered on the MG-RAST portal. Quality (Failed), taxonomic prediction (Unknown and Predicted), species richness (Rarefaction), and species diversity (Alpha) were analyzed according to sequencing approaches (Amplicon sequencing and Shotgun metagenomics). All data were checked for normality and homoscedasticity. Metagenomic projects were compared using the Mann–Whitney U test and Spearman's correlation. Microbiome cores were inferred by Principal Component Analysis. For all statistical tests, p < 0.05 was used. Results The study was performed with 3 projects, involving 245 Amplicon and 164 Shotgun metagenome datasets. All comparisons of variables, according to the type of sequencing, showed significant differences, except for the Predicted. In Shotgun metagenomics datasets the highest correlation was between Rarefaction and Failed (r = − 0.78) and the lowest between Alpha and Unknown (r = − 0.12). In Amplicon sequencing datasets, the variables Rarefaction and Unknown (r = 0.63) had the highest correlation and the lowest was between Alpha and Predicted (r = − 0.03). Shotgun metagenomics datasets showed a greater number of genera than Amplicon. Propionibacterium, Lactobacillus, and Prevotella were the most representative genera in Amplicon sequencing. In Shotgun metagenomics, the most representative genera were Escherichia, Chitinophaga, and Acinetobacter. Conclusions Core of the salivary microbiome and genera diversity are dependent on the sequencing approaches. Available data suggest that Shotgun metagenomics and Amplicon sequencing have similar sensitivities to detect the taxonomic level investigated, although Shotgun metagenomics allows a deeper analysis of the microorganism diversity. Microbiome studies must consider characteristics and limitations of the sequencing approaches. Were identified 20 genera in the core of saliva microbiome, regardless of the health condition of the host. Some bacteria of the core need further study to better understand their role in the oral cavity. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-021-01719-5.
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Affiliation(s)
- Simone G Oliveira
- Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas, Av. Limeira, 901, Piracicaba, Brazil.,Faculty of Dentistry, Rio de Janeiro State University, Boulevard 28 de setembro, 157, Rio de Janeiro, Brazil
| | - Rafaela R Nishiyama
- Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas, Av. Limeira, 901, Piracicaba, Brazil
| | - Claudio A C Trigo
- Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas, Av. Limeira, 901, Piracicaba, Brazil
| | - Ana Luiza Mattos-Guaraldi
- Laboratory of Diphtheria and Corynebacteria of Clinical Relevance, Faculty of Medical Sciences, Rio de Janeiro State University, Boulevard 28 de setembro, 77, Rio de Janeiro, Brazil
| | - Alberto M R Dávila
- Computational and Systems Biology Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, 4365, Rio de Janeiro, Brazil
| | - Rodrigo Jardim
- Computational and Systems Biology Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, 4365, Rio de Janeiro, Brazil.
| | - Flavio H B Aguiar
- Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas, Av. Limeira, 901, Piracicaba, Brazil
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Auffret M, Meuric V, Boyer E, Bonnaure-Mallet M, Vérin M. Oral Health Disorders in Parkinson's Disease: More than Meets the Eye. JOURNAL OF PARKINSONS DISEASE 2021; 11:1507-1535. [PMID: 34250950 PMCID: PMC8609694 DOI: 10.3233/jpd-212605] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Despite clinical evidence of poor oral health and hygiene in Parkinson’s disease (PD) patients, the mouth is often overlooked by both patients and the medical community, who generally focus on motor or psychiatric disorders considered more burdensome. Yet, oral health is in a two-way relationship with overall health—a weakened status triggering a decline in the quality of life. Here, we aim at giving a comprehensive overview of oral health disorders in PD, while identifying their etiologies and consequences. The physical (abnormal posture, muscle tone, tremor, and dyskinesia), behavioral (cognitive and neuropsychiatric disorders), and iatrogenic patterns associated with PD have an overall detrimental effect on patients’ oral health, putting them at risk for other disorders (infections, aspiration, pain, malnutrition), reducing their quality of life and increasing their isolation (anxiety, depression, communication issues). Interdisciplinary cooperation for prevention, management and follow-up strategies need to be implemented at an early stage to maintain and improve patients’ overall comfort and condition. Recommendations for practice, including (non-)pharmacological management strategies are discussed, with an emphasis on the neurologists’ role. Of interest, the oral cavity may become a valuable tool for diagnosis and prognosis in the near future (biomarkers). This overlooked but critical issue requires further attention and interdisciplinary research.
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Affiliation(s)
- Manon Auffret
- Behavior & Basal Ganglia Research Unit (EA 4712), University of Rennes 1, Rennes, France.,Institut des Neurosciences Cliniques de Rennes (INCR), Rennes, France
| | - Vincent Meuric
- INSERM, INRAE, Université de Rennes 1, CHU de Rennes, Nutrition Metabolisms and Cancer, Rennes, France
| | - Emile Boyer
- INSERM, INRAE, Université de Rennes 1, CHU de Rennes, Nutrition Metabolisms and Cancer, Rennes, France
| | - Martine Bonnaure-Mallet
- INSERM, INRAE, Université de Rennes 1, CHU de Rennes, Nutrition Metabolisms and Cancer, Rennes, France
| | - Marc Vérin
- Behavior & Basal Ganglia Research Unit (EA 4712), University of Rennes 1, Rennes, France.,Institut des Neurosciences Cliniques de Rennes (INCR), Rennes, France.,Movement Disorders Unit, Neurology Department, Pontchaillou University Hospital, Rennes, France
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89
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Watanabe A, Kawada-Matsuo M, Le MNT, Hisatsune J, Oogai Y, Nakano Y, Nakata M, Miyawaki S, Sugai M, Komatsuzawa H. Comprehensive analysis of bacteriocins in Streptococcus mutans. Sci Rep 2021; 11:12963. [PMID: 34155274 PMCID: PMC8217173 DOI: 10.1038/s41598-021-92370-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 06/07/2021] [Indexed: 12/24/2022] Open
Abstract
Streptococcus mutans produces bacteriocins that show antibacterial activity against several bacteria. However, comprehensive analysis of these bacteriocins has not been well done. In this study, we isolated 125 S. mutans strains from volunteers and determined their whole genome sequence. Based on the genome analysis, the distribution of each bacteriocin gene (mutacins I-IV, K8 and Smb) was investigated. We found 17, 5, and 2 strains showing 100% matches with mutacin I, mutacin II and mutacin III, respectively. Five mutacin III-positive strains had 2 mismatches compared to mature mutacin III. In 67 mutacin IV-positive strains, 38 strains showed 100% match with mutacin IV, while 29 strains showed some variations. In 23 mutacin K8- and 32 mutacin Smb-positive strains, all except one mutacin K8-positive strain showed 100% match with the mature peptides. Among 125 strains, 84 (65.1%), 26 (20.2%), and 5 (3.9%) strains were positive for one, two and three bacteriocin genes, respectively. Then, the antibacterial activity against oral streptococci and other oral bacterial species was investigated by using bacteriocin gene single-positive strains. Each bacteriocin gene-positive strain showed a different pattern of antibacterial activity. These results speculate that individual S. mutans strains may affect the bacterial composition of dental plaques.
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Affiliation(s)
- Atsuko Watanabe
- Department of Orthodontics and Dentofacial Orthopedics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Miki Kawada-Matsuo
- Department of Bacteriology, Hiroshima University Graduate School of Biomedical and Health Sciences, Kasumi 1-2-3, Hiroshima City, Hiroshima, 734-8551, Japan.,Project Research Centre for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima, Japan
| | - Mi Nguyen-Tra Le
- Department of Bacteriology, Hiroshima University Graduate School of Biomedical and Health Sciences, Kasumi 1-2-3, Hiroshima City, Hiroshima, 734-8551, Japan.,Project Research Centre for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima, Japan
| | - Junzo Hisatsune
- Project Research Centre for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima, Japan.,Antimicrobial Resistance Research Centre, National Institute of Infectious Diseases, Higashi Murayama, Japan
| | - Yuichi Oogai
- Department of Oral Microbiology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yoshio Nakano
- Department of Chemistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Masanobu Nakata
- Department of Oral Microbiology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shouichi Miyawaki
- Department of Orthodontics and Dentofacial Orthopedics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Motoyuki Sugai
- Project Research Centre for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima, Japan.,Antimicrobial Resistance Research Centre, National Institute of Infectious Diseases, Higashi Murayama, Japan
| | - Hitoshi Komatsuzawa
- Department of Bacteriology, Hiroshima University Graduate School of Biomedical and Health Sciences, Kasumi 1-2-3, Hiroshima City, Hiroshima, 734-8551, Japan. .,Project Research Centre for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima, Japan.
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90
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Omori M, Kato-Kogoe N, Sakaguchi S, Kamiya K, Fukui N, Gu YH, Nakamura S, Nakano T, Hoshiga M, Imagawa A, Kit CH, Tamaki J, Ueno T. Characterization of salivary microbiota in elderly patients with type 2 diabetes mellitus: a matched case-control study. Clin Oral Investig 2021; 26:493-504. [PMID: 34143307 DOI: 10.1007/s00784-021-04027-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/04/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The importance of oral health in type 2 diabetes mellitus (T2DM) is widely recognized; however, oral microbiota characteristics associated with T2DM in the elderly population are not well-understood. This study was conducted to evaluate the characteristics of the salivary microbiota in elderly Japanese patients with T2DM. METHODS Saliva samples were collected from 42 elderly Japanese patients with T2DM and 42 age- and sex-matched subjects without T2DM (control). 16S ribosomal RNA metagenomic analysis and comparative analysis of both groups were performed. Random forest classification by machine learning was performed to discriminate between the salivary microbiota in the two groups. RESULTS There were significant differences in the overall salivary microbiota structure between the T2DM and control groups (beta diversity; unweighted UniFrac distances, p = 0.001; weighted UniFrac distances, p = 0.001). The phylum Firmicutes was abundant in patients with T2DM, whereas the phylum Bacteroidetes was abundant in controls. The T2DM prediction model by random forest based on salivary microbiota data was verified with a high predictive potential in five cross-validation tests (area under the curve (AUC) = 0.938 (95% CI, 0.824-1.000)). CONCLUSION Characterization revealed that the salivary microbiota profile of the elderly patients with T2DM is significantly distinct from that of the controls. CLINICAL RELEVANCE These data indicate the necessity of oral health management based on the characteristics of the salivary microbiota in elderly patients with T2DM. Our findings will contribute to future research on the development of new diagnostic and therapeutic methods for this purpose.
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Affiliation(s)
- Michi Omori
- Department of Dentistry and Oral Surgery, Osaka Medical College, 2-7 Daigaku-machi. Takatsuki City, Osaka, 569-8686, Japan
| | - Nahoko Kato-Kogoe
- Department of Dentistry and Oral Surgery, Osaka Medical College, 2-7 Daigaku-machi. Takatsuki City, Osaka, 569-8686, Japan.
| | - Shoichi Sakaguchi
- Department of Microbiology and Infection Control, Osaka Medical College, Takatsuki, Japan
| | - Kuniyasu Kamiya
- Department of Hygiene and Public Health, Osaka Medical College, Takatsuki, Japan
| | - Nozomu Fukui
- Department of Dentistry and Oral Surgery, Osaka Medical College, 2-7 Daigaku-machi. Takatsuki City, Osaka, 569-8686, Japan
| | - Yan-Hong Gu
- Department of Hygiene and Public Health, Osaka Medical College, Takatsuki, Japan
| | - Shota Nakamura
- Department of Infection Metagenomics, Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Takashi Nakano
- Department of Microbiology and Infection Control, Osaka Medical College, Takatsuki, Japan
| | - Masaaki Hoshiga
- Department of Cardiology, Osaka Medical College, Takatsuki, Japan
| | - Akihisa Imagawa
- Department of Internal Medicine (I), Osaka Medical College, Takatsuki, Japan
| | - Chee Hoe Kit
- Periodontics Unit, Department of Restorative Dentistry, National Dental Centre Singapore, Singapore, Singapore
| | - Junko Tamaki
- Department of Hygiene and Public Health, Osaka Medical College, Takatsuki, Japan
| | - Takaaki Ueno
- Department of Dentistry and Oral Surgery, Osaka Medical College, 2-7 Daigaku-machi. Takatsuki City, Osaka, 569-8686, Japan
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91
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Salivary Microbiome Diversity in Kuwaiti Adolescents with Varied Body Mass Index-A Pilot Study. Microorganisms 2021; 9:microorganisms9061222. [PMID: 34200004 PMCID: PMC8228046 DOI: 10.3390/microorganisms9061222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/23/2021] [Accepted: 05/25/2021] [Indexed: 02/07/2023] Open
Abstract
The potential role of the salivary microbiome in human diseases has increasingly been explored. The salivary microbiome has been characterized in several global populations, except the Arabian Gulf region. Hence, in this pilot study, we profiled the salivary microbiome of Kuwaiti adolescents with varied body mass indexes (BMI). The analyses of core microbiome composition showed Firmicutes, Bacteroidota, Proteobacteria, Patescibacteria, Fusobacteriota, Actinobacteriota, and Campylobacterota as the common phylum found in the Kuwaiti adolescent population. We also illustrated a diverse microbial community among the sampled individuals grouped according to their BMI. Notably, the overweight group was found with a higher number of distinct taxa than other groups. As such, the core microbiome composition was found to be significantly different (p-value < 0.001) across different BMI groups. Overall, this pilot investigation outlined the microbial diversity and suggested that changes in salivary microbiome composition in people with obese or overweight BMI might reflect their susceptibility to oral diseases.
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92
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Garcia BA, Acosta NC, Tomar SL, Roesch LFW, Lemos JA, Mugayar LRF, Abranches J. Association of Candida albicans and Cbp + Streptococcus mutans with early childhood caries recurrence. Sci Rep 2021; 11:10802. [PMID: 34031498 PMCID: PMC8144385 DOI: 10.1038/s41598-021-90198-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/04/2021] [Indexed: 02/08/2023] Open
Abstract
Early childhood caries (ECC) recurrence occurs in approximately 40% of treated cases within one year. The association of Streptococcus mutans and Candida albicans with the onset of ECC is well known. Also, S. mutans strains harboring collagen-binding proteins (Cbps) avidly bind to collagen-rich dentin and are linked to increased caries risk. Here, we investigated the presence of Cbp+ S. mutans and C. albicans in saliva and dental plaque of children with varying caries statuses, and their salivary microbiome. In this cross-sectional study, 143 children who were caries-free (n = 73), treated for ECC with no signs of recurrence after 6 months (n = 45), or treated for ECC and experiencing recurrence within 6 months following treatment (n = 25) were enrolled. Co-infection with C. albicans and S. mutans, especially Cbp+ S. mutans, was strongly associated with caries recurrence. Subjects of the recurrence group infected with Cbp+ S. mutans showed a greater burden of Candida spp. and of Mutans streptococci in dentin than those infected with Cbp- strains. Salivary microbiome analysis revealed that Streptococcus parasanguinis was overrepresented in the caries recurrence group. Our findings indicate that Cbp+ S. mutans and C. albicans are intimately associated with caries recurrence, contributing to the establishment of recalcitrant biofilms.
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Affiliation(s)
- B A Garcia
- Department of Oral Biology, University of Florida College of Dentistry, 1395 Center Drive, PO Box 100424, Gainesville, FL, 32610, USA
| | - N C Acosta
- Department of Oral Biology, University of Florida College of Dentistry, 1395 Center Drive, PO Box 100424, Gainesville, FL, 32610, USA.,San Francisco School of Dentistry, University of California, San Francisco, CA, USA
| | - S L Tomar
- Department of Community Dentistry and Behavioral Science, University of Florida College of Dentistry, Gainesville, FL, USA.,Prevention and Public Health Sciences, University of Illinois at Chicago College of Dentistry, Chicago, IL, USA
| | - L F W Roesch
- Interdisciplinary Research Center On Biotechnology-CIP-Biotec, Universidade Federal Do Pampa, São Gabriel, Rio Grande do Sul, Brazil
| | - J A Lemos
- Department of Oral Biology, University of Florida College of Dentistry, 1395 Center Drive, PO Box 100424, Gainesville, FL, 32610, USA
| | - L R F Mugayar
- Department of Pediatric Dentistry, University of Florida College of Dentistry, Gainesville, FL, USA.,Department of Pediatric Dentistry, University of Illinois at Chicago College of Dentistry, Chicago, IL, USA
| | - J Abranches
- Department of Oral Biology, University of Florida College of Dentistry, 1395 Center Drive, PO Box 100424, Gainesville, FL, 32610, USA.
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93
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Hollingsworth BA, Cassatt DR, DiCarlo AL, Rios CI, Satyamitra MM, Winters TA, Taliaferro LP. Acute Radiation Syndrome and the Microbiome: Impact and Review. Front Pharmacol 2021; 12:643283. [PMID: 34084131 PMCID: PMC8167050 DOI: 10.3389/fphar.2021.643283] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 03/04/2021] [Indexed: 12/12/2022] Open
Abstract
Study of the human microbiota has been a centuries-long endeavor, but since the inception of the National Institutes of Health (NIH) Human Microbiome Project in 2007, research has greatly expanded, including the space involving radiation injury. As acute radiation syndrome (ARS) is multisystemic, the microbiome niches across all areas of the body may be affected. This review highlights advances in radiation research examining the effect of irradiation on the microbiome and its potential use as a target for medical countermeasures or biodosimetry approaches, or as a medical countermeasure itself. The authors also address animal model considerations for designing studies, and the potential to use the microbiome as a biomarker to assess radiation exposure and predict outcome. Recent research has shown that the microbiome holds enormous potential for mitigation of radiation injury, in the context of both radiotherapy and radiological/nuclear public health emergencies. Gaps still exist, but the field is moving forward with much promise.
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Affiliation(s)
- Brynn A Hollingsworth
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, United States
| | - David R Cassatt
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, United States
| | - Andrea L DiCarlo
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, United States
| | - Carmen I Rios
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, United States
| | - Merriline M Satyamitra
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, United States
| | - Thomas A Winters
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, United States
| | - Lanyn P Taliaferro
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, United States
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94
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Kruse AB, Schlueter N, Kortmann VK, Frese C, Anderson A, Wittmer A, Hellwig E, Vach K, Al-Ahmad A. Long-Term Use of Oral Hygiene Products Containing Stannous and Fluoride Ions: Effect on Viable Salivary Bacteria. Antibiotics (Basel) 2021; 10:481. [PMID: 33921981 PMCID: PMC8143473 DOI: 10.3390/antibiotics10050481] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/14/2021] [Accepted: 04/20/2021] [Indexed: 11/17/2022] Open
Abstract
The aim of this randomized, controlled clinical trial was to isolate and identify viable microorganisms in the saliva of study participants that continuously used a stannous and fluoride ion (F/Sn)-containing toothpaste and mouth rinse over a period of three years in comparison to a control group that used stannous ion free preparations (noF/Sn) over the same time period. Each group (F/Sn and noF/Sn) included 16 participants that used the respective oral hygiene products over a 36-month period. Stimulated saliva samples were collected at baseline (T0) and after 36 months (T1) from all participants for microbiological examination. The microbial composition of the samples was analyzed using culture technique, matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry, and 16S rDNA Polymerase Chain Reaction (PCR). There were only minor differences between both groups when comparing the absolute values of viable microbiota and bacterial composition. The treatment with F/Sn led to a slight decrease in disease-associated and a slight increase in health-associated bacteria. It was shown that the use of stannous ions had no negative effects on physiological oral microbiota even after prolonged use. In fact, a stabilizing effect of the oral hygiene products containing stannous ions on the health-associated oral microbiota could be expected.
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Affiliation(s)
- Anne Brigitte Kruse
- Department of Operative Dentistry & Periodontology, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (V.K.K.); (A.A.); (E.H.); (A.A.-A.)
| | - Nadine Schlueter
- Division for Cariology, Department of Operative Dentistry and Periodontology, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany;
| | - Viktoria Konstanze Kortmann
- Department of Operative Dentistry & Periodontology, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (V.K.K.); (A.A.); (E.H.); (A.A.-A.)
| | - Cornelia Frese
- Clinic for Oral, Dental and Maxillofacial Diseases, Department of Conservative Dentistry, University Hospital Heidelberg, 69120 Heidelberg, Germany;
| | - Annette Anderson
- Department of Operative Dentistry & Periodontology, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (V.K.K.); (A.A.); (E.H.); (A.A.-A.)
| | - Annette Wittmer
- Institute of Medical Microbiology and Hygiene, Department of Microbiology and Hygiene, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany;
| | - Elmar Hellwig
- Department of Operative Dentistry & Periodontology, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (V.K.K.); (A.A.); (E.H.); (A.A.-A.)
| | - Kirstin Vach
- Institute of Medical Biometry and Statistics, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany;
| | - Ali Al-Ahmad
- Department of Operative Dentistry & Periodontology, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (V.K.K.); (A.A.); (E.H.); (A.A.-A.)
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95
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Lundtorp-Olsen C, Enevold C, Juel Jensen CA, Stofberg SN, Twetman S, Belstrøm D. Impact of Probiotics on the Salivary Microbiota and Salivary Levels of Inflammation-Related Proteins during Short-Term Sugar Stress: A Randomized Controlled Trial. Pathogens 2021; 10:pathogens10040392. [PMID: 33805894 PMCID: PMC8064398 DOI: 10.3390/pathogens10040392] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 11/16/2022] Open
Abstract
Background: The purpose of the present investigation was to characterize the effect of probiotics on the composition of the salivary microbiota and salivary levels of inflammation-related proteins during short-term sugar stress. We tested the hypotheses that consumption of probiotics may partly counteract the detrimental influence of sugar stress on oral homeostasis. Methods: The present study was a five-week, blinded, randomized controlled trial with four study arms—A: sucrose and probiotic (n = 20); B: sucrose and placebo (n = 20); C: xylitol and probiotic (n = 20); D: xylitol and placebo (n = 20). Saliva samples were collected at baseline and after two and five weeks. The salivary microbiota was characterized by means of 16S rDNA sequencing, and sequences were referenced against the Human Oral Microbiome Database (HOMD). Neutrophil gelatinase-associated lipocalin (NGAL) and transferrin levels were quantified using immunoassays. Results: Sugar stress induced a significant increase in the relative abundance of the genus Streptococcus from 29.8% at baseline to 42.9% after two weeks. Changes were transient and were completely reversed three weeks after discontinuation of sugar stress. Xylitol and probiotics alone had no effect on the salivary microbiota, whereas the combination of xylitol and probiotics induced a significant decrease in the relative abundance of Streptococcus species from 37.6% at baseline to 23.0% at week 2. Sugar stress significantly increased salivary transferrin levels, and the effect was partly counteracted by concomitant use of probiotics. Conclusions: The data clearly demonstrate an impact of combined consumption of xylitol and probiotics on the composition of the salivary microbiota. Future studies are needed to evaluate whether the combined use of xylitol and the probiotic strains tested could have clinically protective effects during periods of sugar stress.
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Affiliation(s)
- Christine Lundtorp-Olsen
- Department of Odontology, Section for Clinical Oral Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark; (C.L.-O.); (S.T.)
| | - Christian Enevold
- Center for Rheumatology and Spine Diseases, Institute for Inflammation Research, Rigshospitalet, Copenhagen University Hospital, 2100 Copenhagen, Denmark;
| | - Claus Antonio Juel Jensen
- Department of Clinical Biochemistry, Nordsjællands Hospital, 3400 Hillerød, Denmark; (C.A.J.J.); (S.N.S.)
| | - Steen Nymann Stofberg
- Department of Clinical Biochemistry, Nordsjællands Hospital, 3400 Hillerød, Denmark; (C.A.J.J.); (S.N.S.)
| | - Svante Twetman
- Department of Odontology, Section for Clinical Oral Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark; (C.L.-O.); (S.T.)
| | - Daniel Belstrøm
- Department of Odontology, Section for Clinical Oral Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark; (C.L.-O.); (S.T.)
- Correspondence: ; Tel.: +45-21-30-05-80
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96
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Rowińska I, Szyperska-Ślaska A, Zariczny P, Pasławski R, Kramkowski K, Kowalczyk P. The Influence of Diet on Oxidative Stress and Inflammation Induced by Bacterial Biofilms in the Human Oral Cavity. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1444. [PMID: 33809616 PMCID: PMC8001659 DOI: 10.3390/ma14061444] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 12/12/2022]
Abstract
The article is a concise compendium of knowledge on the etiology of pathogenic microorganisms of all complexes causing oral diseases. The influence of particular components of the diet and the role of oxidative stress in periodontal diseases were described. The study investigated the bacteriostatic effect of the diet of adults in in vivo and in vitro tests on the formation of bacterial biofilms living in the subgingival plaque, causing diseases called periodontitis. If left untreated, periodontitis can damage the gums and alveolar bones. Anaerobic bacteria, called periopathogens or periodontopathogens, play a key role in the etiopathogenesis of periodontitis. The most important periopathogens of the oral microbiota are bacteria of all complexes, including the red complex. The obtained results suggest the possibility of using a specific diet in the prevention and treatment of periodontal diseases-already treated as a disease of civilization. The quoted article is an innovative compilation of knowledge on this subject and it can be a valuable source of knowledge for professional hygienists, dentists, peridontologists, dentistry students and anyone who cares about proper oral hygiene. The obtained results suggest the possibility of using this type of diet in the prophylaxis of the oral cavity in order to avoid periodontitis.
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Affiliation(s)
- Ilona Rowińska
- The Medical and Social Center for Vocational and Continuing Education in Toruń, St. Jana 1/3, 87-100 Toruń, Poland; (I.R.); (A.S.-Ś.)
| | - Adrianna Szyperska-Ślaska
- The Medical and Social Center for Vocational and Continuing Education in Toruń, St. Jana 1/3, 87-100 Toruń, Poland; (I.R.); (A.S.-Ś.)
| | - Piotr Zariczny
- Toruń City Hall, Business Support Center in Toruń, ul. Marii Konopnickiej 13, 87-100 Toruń, Poland;
| | - Robert Pasławski
- Veterinary Insitute, Nicolaus Copernicus University in Toruń, str. Gagarina 7, 87-100 Toruń, Poland;
| | - Karol Kramkowski
- Department of Physical Chemistry, Medical University of Bialystok, Kilińskiego 1str, 15-089 Bialystok, Poland;
| | - Paweł Kowalczyk
- Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland
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97
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Dong T, Zhao F, Yuan K, Zhu X, Wang N, Xia F, Lu Y, Huang Z. Association Between Serum Thyroid-Stimulating Hormone Levels and Salivary Microbiome Shifts. Front Cell Infect Microbiol 2021; 11:603291. [PMID: 33718264 PMCID: PMC7952758 DOI: 10.3389/fcimb.2021.603291] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 01/11/2021] [Indexed: 01/10/2023] Open
Abstract
High serum thyroid-stimulating hormone (TSH) levels are linked to many metabolic disorders, but the effects of TSH levels on the oral microbiota are still largely unknown. This study aimed to explore the association between the salivary microbiome in adults and serum TSH levels. Saliva and fasting blood samples were obtained from a health census conducted in Southeast China. All participants were divided according to serum TSH levels. The microbial genetic profiles and changes were acquired by 16S rDNA sequencing and bioinformatics analysis. Relevant anthropometric and biochemical measurements such as insulin resistance, blood lipids, and body composition were evaluated with laboratory tests and physical examinations. The salivary microbiome in individuals with higher TSH level showed significantly higher taxa diversity. Principal coordinates analysis and partial least squares discriminant analysis showed distinct clustering in the Abnormal and Normal Groups (Adonis, P=0.0320). Granulicatella was identified as a discriminative genus for comparison of the two groups. Fasting serum insulin, Homeostatic Model Assessment for Insulin Resistance, and hemoglobin A1 were elevated in the Abnormal Group (P<0.05), showing the presence of insulin resistance in individuals with abnormal higher serum TSH levels. Distance-based redundancy analysis revealed the association of this distinctive difference with salivary microbiome. In conclusion, shifts in microbial profile were observed in the saliva of individuals with different serum TSH levels, and insulin resistance may play an important role in the biochemical and microbial alteration.
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Affiliation(s)
- Ting Dong
- Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Shanghai Research Institute of Stomatology, Shanghai, China
| | - Fen Zhao
- Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Shanghai Research Institute of Stomatology, Shanghai, China
| | - Keyong Yuan
- Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Shanghai Research Institute of Stomatology, Shanghai, China
| | - Xiaohan Zhu
- Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Shanghai Research Institute of Stomatology, Shanghai, China
| | - Ningjian Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fangzhen Xia
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yingli Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhengwei Huang
- Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Shanghai Research Institute of Stomatology, Shanghai, China
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Armstrong H, Bording-Jorgensen M, Wine E. The Multifaceted Roles of Diet, Microbes, and Metabolites in Cancer. Cancers (Basel) 2021; 13:cancers13040767. [PMID: 33673140 PMCID: PMC7917909 DOI: 10.3390/cancers13040767] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 02/07/2023] Open
Abstract
Many studies performed to date have implicated select microbes and dietary factors in a variety of cancers, yet the complexity of both these diseases and the relationship between these factors has limited the ability to translate findings into therapies and preventative guidelines. Here we begin by discussing recently published studies relating to dietary factors, such as vitamins and chemical compounds used as ingredients, and their contribution to cancer development. We further review recent studies, which display evidence of the microbial-diet interaction in the context of cancer. The field continues to advance our understanding of the development of select cancers and how dietary factors are related to the development, prevention, and treatment of these cancers. Finally, we highlight the science available in the discussion of common misconceptions with regards to cancer and diet. We conclude this review with thoughts on where we believe future research should focus in order to provide the greatest impact towards human health and preventative medicine.
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Affiliation(s)
- Heather Armstrong
- CEGIIR, University of Alberta, Edmonton, AB T6G 2X8, Canada;
- Department of Pediatrics, University of Alberta, Edmonton, AB T6G 1C9, Canada
- Correspondence: (H.A.); (E.W.)
| | - Michael Bording-Jorgensen
- CEGIIR, University of Alberta, Edmonton, AB T6G 2X8, Canada;
- Department of Pediatrics, University of Alberta, Edmonton, AB T6G 1C9, Canada
| | - Eytan Wine
- CEGIIR, University of Alberta, Edmonton, AB T6G 2X8, Canada;
- Department of Pediatrics, University of Alberta, Edmonton, AB T6G 1C9, Canada
- Department of Physiology, University of Alberta, Edmonton, AB T6G 1C9, Canada
- Correspondence: (H.A.); (E.W.)
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99
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Bachtiar BM, Theodorea CF, Tahapary DL, Astrella C, n/a N, Bachtiar EW. A pilot study of red complex and three genera subgingival microbiome in periodontitis subjects with and without diabetes, evaluated by MinION platform. F1000Res 2021; 10:79. [PMID: 34249333 PMCID: PMC8261760 DOI: 10.12688/f1000research.28216.4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/07/2021] [Indexed: 01/12/2023] Open
Abstract
Background: Subgingival niche is one biofilm habitat containing rich microbiota, which plays an active role in maintaining the health of periodontal tissue and determining host response. As such, a study of changing subgingival biofilms is important for understanding the effect of a systemic condition. In this study, we compared the occurrence of six bacteria cohabiting in the subgingival area of periodontitis subjects, with (DP, n = 8) and without (NDP, n = 4) diabetes. Methods: The six genus and species of targeted bacteria were confirmed by 16S rRNA amplicon sequencing on MinION nanopore platform. Descriptive statistic was used to describe the obtained data. Results: We found that the six genus and species of targeted bacteria were detected but in different quantities in either group's periodontal pocket. Our data showed that Tannerella forsythia was the most abundant species in subgingival biofilms of the DP group of the red complex bacteria. In contrast, Aggregatibacter sp., which belongs to the phylum of proteobacteria, was present at a relatively lower level. In contrast, Fusobacterium sp., which belongs to orange complex bacteria, showed relative similarities in subgingival biofilms of both groups tested, while Veillonella sp., were abundant in the DP groups. Conclusions: Our data show that the diversity of classic periodontopathogens increased in the subgingival niche of periodontitis subjects with diabetes. It is the first study in Indonesia to apply MinION-based, full-length 16S rRNA amplicon sequencing in periodontitis patients with and without diabetes.
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Affiliation(s)
- Boy M Bachtiar
- Department of Oral Biology and Oral Science Research Center, Faculty of Dentistry, Universitas Indonesia, Jakarta, 10430, Indonesia
| | - Citra F Theodorea
- Department of Oral Biology and Oral Science Research Center, Faculty of Dentistry, Universitas Indonesia, Jakarta, 10430, Indonesia
| | - Dicky L Tahapary
- Division of Endocrinology, Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, 10430, Indonesia.,Metabolic, Cardiovascular and Aging Cluster, The Indonesian Medical Education and Research Institute, Faculty of Medicine, Universitas Indonesia, Jakarta, 10430, Indonesia
| | - Cindy Astrella
- Metabolic, Cardiovascular and Aging Cluster, The Indonesian Medical Education and Research Institute, Faculty of Medicine, Universitas Indonesia, Jakarta, 10430, Indonesia.,Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, 10430, Indonesia
| | - Natalina n/a
- Department of Periodontology, Faculty of Dentistry, Universitas Indonesia, Jakarta, 10430, Indonesia
| | - Endang W Bachtiar
- Department of Oral Biology and Oral Science Research Center, Faculty of Dentistry, Universitas Indonesia, Jakarta, 10430, Indonesia
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100
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González-Olmo MJ, Delgado-Ramos B, Ortega-Martínez AR, Romero-Maroto M, Carrillo-Díaz M. Fear of COVID-19 in Madrid. Will patients avoid dental care? Int Dent J 2021; 72:76-82. [PMID: 33743992 PMCID: PMC7970159 DOI: 10.1016/j.identj.2021.01.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Introduction The objective of this research is to describe how perceived infectability, germ aversion, and fear of COVID-19 in adults in Madrid have changed from the beginning of the pandemic until the lockdown exit phase and their influence on dental care behaviour. Materials and Methods Some 961 participants were monitored in a study in Madrid at 2 time points: before lockdown (T0) and after completion of the total lockdown (T1). A questionnaire that included basic sociodemographic variables, the perceived vulnerability to disease scale (including perceived infectability and germ aversion), the fear of COVID-19 scale, and dental visiting behaviour after confinement for fear of COVID was administered. Results The participants had higher scores for infectability and germ aversion at T1 than at T0 (P < 0.01). Of those studied, 24.5% (235) of the participants would not go to the dentist for fear of COVID-19. Those who had a high perceived infectability scale score were at least 5 times more likely to not visit the dentist. Those with high COVID-19 fear were at least 6 times more likely to not visit the dentist, and those older than 60 years were 8 times more likely to not visit. Conclusions The population's high levels of vulnerability to infectability and perceived germ aversion associated with fear of COVID-19 and the resultant avoidance behaviour to dental care will remain until an effective drug or vaccine for SARS-CoV2 is found.
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