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Patridge E, Gorakshakar A, Molusky MM, Ogundijo O, Janevski A, Julian C, Hu L, Vuyisich M, Banavar G. Microbial functional pathways based on metatranscriptomic profiling enable effective saliva-based health assessments for precision wellness. Comput Struct Biotechnol J 2024; 23:834-842. [PMID: 38328005 PMCID: PMC10847690 DOI: 10.1016/j.csbj.2024.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/25/2024] [Accepted: 01/25/2024] [Indexed: 02/09/2024] Open
Abstract
It is increasingly recognized that an important step towards improving overall health is to accurately measure biomarkers of health from the molecular activities prevalent in the oral cavity. We present a general methodology for computationally quantifying the activity of microbial functional pathways using metatranscriptomic data. We describe their implementation as a collection of eight oral pathway scores using a large salivary sample dataset (n = 9350), and we evaluate score associations with oropharyngeal disease phenotypes within an unseen independent cohort (n = 14,129). Through this validation, we show that the relevant oral pathway scores are significantly worse in individuals with periodontal disease, acid reflux, and nicotine addiction, compared with controls. Given these associations, we make the case to use these oral pathway scores to provide molecular health insights from simple, non-invasive saliva samples, and as molecular endpoints for actionable interventions to address the associated conditions.
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Affiliation(s)
- Eric Patridge
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | - Anmol Gorakshakar
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | | | - Oyetunji Ogundijo
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | - Angel Janevski
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | - Cristina Julian
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | - Lan Hu
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | | | - Guruduth Banavar
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
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Kawano-Sugaya T, Arikawa K, Saeki T, Endoh T, Kamata K, Matsuhashi A, Hosokawa M. A single amplified genome catalog reveals the dynamics of mobilome and resistome in the human microbiome. MICROBIOME 2024; 12:188. [PMID: 39358771 PMCID: PMC11446047 DOI: 10.1186/s40168-024-01903-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 08/07/2024] [Indexed: 10/04/2024]
Abstract
BACKGROUND The increase in metagenome-assembled genomes (MAGs) has advanced our understanding of the functional characterization and taxonomic assignment within the human microbiome. However, MAGs, as population consensus genomes, often aggregate heterogeneity among species and strains, thereby obfuscating the precise relationships between microbial hosts and mobile genetic elements (MGEs). In contrast, single amplified genomes (SAGs) derived via single-cell genome sequencing can capture individual genomic content, including MGEs. RESULTS We introduce the first substantial SAG dataset (bbsag20) from the human oral and gut microbiome, comprising 17,202 SAGs above medium-quality without co-assembly. This collection unveils a diversity of bacterial lineages across 312 oral and 647 gut species, demonstrating different taxonomic compositions from MAGs. Moreover, the SAGs showed cellular-level evidence of the translocation of oral bacteria to the gut. We also identified broad-host-range MGEs harboring antibiotic resistance genes (ARGs), which were not detected in the MAGs. CONCLUSIONS The difference in taxonomic composition between SAGs and MAGs indicates that combining both methods would be effective in expanding the genome catalog. By connecting mobilomes and resistomes in individual samples, SAGs could meticulously chart a dynamic network of ARGs on MGEs, pinpointing potential ARG reservoirs and their spreading patterns in the microbial community. Video Abstract.
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Affiliation(s)
| | - Koji Arikawa
- bitBiome, Inc., 513 Wasedatsurumaki-Cho, Shinjuku-Ku, Tokyo, 162-0041, Japan
- Department of Life Science and Medical Bioscience, Waseda University, 2-2 Wakamatsu-Cho, Shinjuku-Ku, Tokyo, 162-8480, Japan
| | - Tatsuya Saeki
- bitBiome, Inc., 513 Wasedatsurumaki-Cho, Shinjuku-Ku, Tokyo, 162-0041, Japan
| | - Taruho Endoh
- bitBiome, Inc., 513 Wasedatsurumaki-Cho, Shinjuku-Ku, Tokyo, 162-0041, Japan
| | - Kazuma Kamata
- bitBiome, Inc., 513 Wasedatsurumaki-Cho, Shinjuku-Ku, Tokyo, 162-0041, Japan
| | - Ayumi Matsuhashi
- bitBiome, Inc., 513 Wasedatsurumaki-Cho, Shinjuku-Ku, Tokyo, 162-0041, Japan
| | - Masahito Hosokawa
- bitBiome, Inc., 513 Wasedatsurumaki-Cho, Shinjuku-Ku, Tokyo, 162-0041, Japan.
- Department of Life Science and Medical Bioscience, Waseda University, 2-2 Wakamatsu-Cho, Shinjuku-Ku, Tokyo, 162-8480, Japan.
- Computational Bio Big-Data Open Innovation Laboratory, National Institute of Advanced Industrial Science and Technology, 3-4-1 Okubo, Shinjuku-Ku, Tokyo, 169-8555, Japan.
- Institute for Advanced Research of Biosystem Dynamics, Waseda Research Institute for Science and Engineering, 3-4-1 Okubo, Shinjuku-Ku, Tokyo, 169-8555, Japan.
- Research Organization for Nano and Life Innovation, Waseda University, 513 Wasedatsurumaki-Cho, Shinjuku-Ku, Tokyo, 162-0041, Japan.
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Sanjar F, Silliman DT, Johnson IJ, Htut Z, Peacock TJ, Thompson SF, Dion GR, Nahid MA, Decker JF, Leung KP. Identification of temporal shifts of oral bacteria in bone regeneration following mandibular bone defect injury and therapeutic surgery in a porcine model. Mol Oral Microbiol 2024; 39:381-392. [PMID: 38511906 DOI: 10.1111/omi.12460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 12/07/2023] [Accepted: 02/13/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Considered the second largest and most diverse microbiome after the gut, the human oral ecosystem is complex with diverse and niche-specific microorganisms. Although evidence is growing for the importance of oral microbiome in supporting a healthy immune system and preventing local and systemic infections, the influence of craniomaxillofacial (CMF) trauma and routine reconstructive surgical treatments on community structure and function of oral resident microbes remains unknown. CMF injuries affect a large number of people, needing extensive rehabilitation with lasting morbidity and loss of human productivity. Treatment efficacy can be complicated by the overgrowth of opportunistic commensals or multidrug-resistant pathogens in the oral ecosystem due to weakened host immune function and reduced colonization resistance in a dysbiotic oral microbiome. AIMS To understand the dynamics of microbiota's community structure during CMF injury and subsequent treatments, we induced supra-alveolar mandibular defect in Hanford miniature swine (n = 3) and compared therapeutic approaches of immediate mandibullar reconstructive (IMR) versus delayed mandibullar reconstructive (DMR) surgeries. METHODS Using bacterial 16S ribosomal RNA gene marker sequencing, the composition and abundance of the bacterial community of the uninjured maxilla (control) and the injured left mandibula (lingual and buccal) treated by DMR were surveyed up to 70-day post-wounding. For the injured right mandibula receiving IMR treatment, the microbial composition and abundance were surveyed up to 14-day post-wounding. Moreover, we measured sera level of biochemical markers (e.g., osteocalcin) associated with bone regeneration and healing. Computed tomography was used to measure and compare mandibular bone characteristics such as trabecular thickness between sites receiving DMR and IMR therapeutic approaches until day 140, the end of study period. RESULTS Independent of IMR versus DMR therapy, we observed similar dysbiosis and shifts of the mucosal bacteria residents after CMF injury and/or following treatment. There was an enrichment of Fusobacterium, Porphyromonadaceae, and Bacteroidales accompanied by a decline in Pasteurellaceae, Moraxella, and Neisseria relative abundance in days allotted for healing. We also observed a decline in species richness and abundance driven by reduction in temporal instability and inter-animal heterogeneity on days 0 and 56, with day 0 corresponding to injury in DMR group and day 56 corresponding to delayed treatment for DMR or injury and immediate treatment for the IMR group. Analysis of bone healing features showed comparable bone-healing profiles for IMR vs. DMR therapeutic approach.
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Affiliation(s)
- Fatemeh Sanjar
- Combat Wound Care Group, US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas, USA
| | - David T Silliman
- Combat Wound Care Group, US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas, USA
| | - Ian J Johnson
- Combat Wound Care Group, US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas, USA
| | - Zayer Htut
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Trent J Peacock
- Office of Research Compliance, Mississippi State University, Meridian, Mississippi, USA
| | - Samira F Thompson
- Carl R. Darnall Army Medical Center, Fort Hood Dental Activities-AEGD, Fort Hood, Texas, USA
| | - Gregory R Dion
- Combat Wound Care Group, US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas, USA
| | - Md A Nahid
- Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - John F Decker
- Carl R. Darnall Army Medical Center, Fort Hood Dental Activities-AEGD, Fort Hood, Texas, USA
| | - Kai P Leung
- Combat Wound Care Group, US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas, USA
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Pinto GR, Carvalho Filho PC, Carvalho RDO, Conceição RR, Fortuna V, Gomes-Filho IS, Trindade SC, Sarmento VA. Subgingival biofilm microbiome in individuals with asthma and periodontitis: Metagenomic analysis. Oral Dis 2024; 30:4721-4730. [PMID: 38438326 DOI: 10.1111/odi.14913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/22/2024] [Accepted: 02/18/2024] [Indexed: 03/06/2024]
Abstract
OBJECTIVE This observational study aimed to explore the metagenomics of subgingival biofilms in individuals with varying degrees of asthma, from severe to none, to elucidate the association between the subgingival microbiome and asthma. MATERIALS AND METHODS Subgingival biofilm samples were collected from thirty participants at the Asthma Control Program Outpatient Clinic in Bahia (ProAR). These samples were categorized into six groups based on the severity of asthma and the presence or absence of periodontitis. We employed next-generation sequencing (Illumina MiSeq), targeting the 16S rRNA gene, to characterize the microbial communities present. Our analysis included descriptive statistics and sequencing data, evaluated using multivariate statistical methods such as the Shannon index, principal coordinate analysis, and the Bray-Curtis dissimilarity. RESULTS Our findings indicate a higher prevalence of periodontally detrimental bacterial genera in individuals with severe asthma and periodontitis. Additionally, individuals with asthma, but without periodontitis, exhibited a tendency toward dysbiosis, particularly in cases of severe asthma. CONCLUSION This research provides new insights into the composition of the subgingival microbiome in individuals with varying severities of asthma and periodontitis. The genera identified in this study underscore the need for further investigations to build upon these findings.
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Affiliation(s)
- Giselle R Pinto
- Department of Dentistry, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
| | - Paulo C Carvalho Filho
- Department of Dentistry, Bahiana School of Medicine and Public Health, Salvador, Bahia, Brazil
| | - Rodrigo D O Carvalho
- Department of Biochemistry and Biophysics, Institute of Health Science, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
| | - Rogério R Conceição
- Department of Biointeraction, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
| | - Vitor Fortuna
- Department of Biochemistry and Biophysics, Institute of Health Science, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
| | - Isaac S Gomes-Filho
- Department of Health, State University of Feira de Santana (UEFS), Feira de Santana, Bahia, Brazil
| | - Soraya C Trindade
- Department of Biointeraction, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
- Department of Health, State University of Feira de Santana (UEFS), Feira de Santana, Bahia, Brazil
| | - Viviane A Sarmento
- Department of Dentistry, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
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Kuriki N, Asahi Y, Okamoto M, Noiri Y, Ebisu S, Machi H, Suzuki M, Hayashi M. Synergistic effects of arginine and fluoride on human dental biofilm control. J Dent 2024; 149:105307. [PMID: 39178800 PMCID: PMC11391429 DOI: 10.1016/j.jdent.2024.105307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 08/07/2024] [Accepted: 08/10/2024] [Indexed: 08/26/2024] Open
Abstract
OBJECTIVES The aim of this study was to quantitatively and comprehensively investigate the combined effects of arginine and fluoride on the suppression of pathogenicity using an in situ biofilm model and next-generation sequencing (NGS). METHODS Using the in situ model, dental biofilms were formed and the viable bacterial counts and arginine activity in the arginine- and fluoride-containing dentifrice and control groups were measured. We also compared their effects on the bacterial microbiota and predictive functional factors in the control, arginine (arg), and arginine + fluoride (argF) groups using NGS analysis. RESULTS Compared to the control treatment, the use of 8 % arginine and 1450 ppm fluoride toothpaste resulted in significantly high oral NH4+ concentrations without affecting the number of viable bacteria (P < 0.05). NGS analysis revealed that the oral microbiota of the control, arg, and argF groups were significantly different. Heat map analysis of the predicted functional factors revealed that the arg group had different properties from the other groups and activated specific substrate metabolic pathways; contrastingly, argF treatment inhibited the activity of these pathways and prevented an increase in the abundance of bacterial genera that utilize substrates such as sucrose, suggesting the synergistic effect of arginine and fluoride. CONCLUSIONS This study indicates that the combination of arginine and fluoride has a synergistic effect on the bacterial microbiota and pathogenicity of dental biofilms compared with arginine alone. CLINICAL SIGNIFICANCE Our findings suggest that the combination of arginine and fluoride could be used as an effective prebiotic and may inhibit the growth of bacteria associated with dental diseases.
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Affiliation(s)
- Nanako Kuriki
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan; Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA.
| | - Yoko Asahi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Motoki Okamoto
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Yuichiro Noiri
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Shigeyuki Ebisu
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Hiroyuki Machi
- Osaka University Dental Technology Institute, Osaka, Japan
| | - Maiko Suzuki
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Mikako Hayashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
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Shetty VV, Shetty SS. Exploring the gut microbiome and head and neck cancer interplay. Pathol Res Pract 2024; 263:155603. [PMID: 39368364 DOI: 10.1016/j.prp.2024.155603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 09/05/2024] [Accepted: 09/24/2024] [Indexed: 10/07/2024]
Abstract
The gut microbiome, a complex community of microorganisms residing in the gastrointestinal tract, plays a crucial role in maintaining human health and influencing disease outcomes. Recent advancements in sequencing technologies have revealed the intricate relationship between gut microbiota and various health conditions. This review explores the impact of gut microbiome dysbiosis on immune function, chronic inflammation, and cancer progression. Dysbiosis, characterized by an imbalance in microbial populations, can lead to immune dysfunction, creating a pro-inflammatory environment conducive to tumorigenesis. Gut microbiome metabolites, such as short-chain fatty acids and bile acids, also play a significant role in modulating these processes. The interplay between these factors contributes to the development and progression of HNC. Furthermore, this review highlights the potential of therapeutic interventions targeting the gut microbiome, including probiotics, prebiotics, and dietary modifications, to restore microbial balance and mitigate cancer risk. Understanding the mechanisms by which the gut microbiome influences HNC can provide valuable insights into novel preventive and therapeutic strategies. Future research should focus on elucidating the specific microbial taxa and metabolites involved in HNC, as well as the impact of lifestyle factors such as diet, alcohol consumption, and oral hygiene on the gut microbiome. By leveraging the growing knowledge of the gut microbiome, it may be possible to develop personalized approaches to cancer prevention and treatment, ultimately improving patient outcomes.
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Affiliation(s)
- Veeksha V Shetty
- Nitte (Deemed To Be University), KS Hegde Medical Academy (KSHEMA), Central Research Laboratory, Cellomics, Lipidomics and Molecular Genetics Division, India
| | - Shilpa S Shetty
- Nitte (Deemed To Be University), KS Hegde Medical Academy (KSHEMA), Central Research Laboratory, Cellomics, Lipidomics and Molecular Genetics Division, India.
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da Silva Goulart R, Oliveira-Silva M, Faria-Junior M, Silva-Sousa YTC, Miranda CES, Pitondo-Silva A. Optimized protocol for collecting root canal biofilms for in vitro studies. J Microbiol Methods 2024; 226:107048. [PMID: 39332642 DOI: 10.1016/j.mimet.2024.107048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 09/22/2024] [Accepted: 09/23/2024] [Indexed: 09/29/2024]
Abstract
Endodontic retreatment is often necessitated by several factors, including the persistence of microorganisms in the root canal system (RCS). Their complex organization in biofilms increases their pathogenic potential, necessitating new disinfection strategies. This study aimed to standardize a new in vitro protocol for collecting biofilm from the RCS. Thirty-four bovine incisors were used in the study, divided into two experimental groups with two collection steps each: (a) biofilm collection protocol and (b) absorbent paper points protocol. Twelve specimens from each group were selected for counting colony-forming units (CFUs), while eight specimens were prepared for scanning electron microscopy (SEM). Two additional specimens served as sterilization controls to ensure that experiments were free of contamination. The coronal region was removed and standardized at 15 mm. After preparation with ProTaper up to F5, the apical foramen was sealed with composite resin, and the roots were stabilized with acrylic resin in 1.5-mL Eppendorf tubes. The specimens were sterilized and inoculated with Enterococcus faecalis NTCT 775 every 24 h for 21 days. After this period, each group underwent biofilm collection protocols, and CFU and scanning electron microscopy (SEM) data were analyzed. The Shapiro-Wilk test was performed to assess the normality of log-transformed data, and the results indicated a normal distribution for all groups, allowing parametric testing. The Levene test was used to evaluate the equality of variances. The proposed biofilm collection method yielded significantly higher CFU counts compared with the absorbent paper points method, particularly when analyzed on a log₁₀ scale. An independent samples t-test confirmed a statistically significant difference between the two methods (p < 0.0001). The proposed protocol achieved an efficiency rate of 95.85 % ± 1.15 %, whereas the absorbent paper points protocol yielded a lower efficiency of 5.46 % ± 1.37 %. Therefore, the biofilm collection protocol proposed in this study proved to be more effective for biofilm removal from the RCS.
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Affiliation(s)
- Rafael da Silva Goulart
- Programa de Pós-Graduação em Odontologia, Universidade de Ribeirão Preto. Universidade de Ribeirão Preto. Av. Costábile Romano, 2201 - Ribeirânia, Ribeirão Preto, SP, Brazil CEP: 14096-900.
| | - Mariana Oliveira-Silva
- Programa de Pós-Graduação em Tecnologia Ambiental, Universidade de Ribeirão Preto. Av. Costábile Romano, 2201 - Ribeirânia, Ribeirão Preto, SP, Brazil CEP: 14096-900.
| | - Milton Faria-Junior
- Departamento de Exatas, Universidade de Ribeirão Preto. Av. Costábile Romano, 2201 - Ribeirânia, Ribeirão Preto, SP, Brazil CEP: 14096-900.
| | - Yara Teresinha Correa Silva-Sousa
- Programa de Pós-Graduação em Odontologia, Universidade de Ribeirão Preto. Universidade de Ribeirão Preto. Av. Costábile Romano, 2201 - Ribeirânia, Ribeirão Preto, SP, Brazil CEP: 14096-900.
| | - Carlos Eduardo Saraiva Miranda
- Programa de Pós-Graduação em Odontologia, Universidade de Ribeirão Preto. Universidade de Ribeirão Preto. Av. Costábile Romano, 2201 - Ribeirânia, Ribeirão Preto, SP, Brazil CEP: 14096-900; Curso de Ciências Farmacêuticas, Universidade de Ribeirão Preto. Av. Costábile Romano, 2201 - Ribeirânia, Ribeirão Preto, SP, Brazil CEP: 14096-900.
| | - André Pitondo-Silva
- Programa de Pós-Graduação em Odontologia, Universidade de Ribeirão Preto. Universidade de Ribeirão Preto. Av. Costábile Romano, 2201 - Ribeirânia, Ribeirão Preto, SP, Brazil CEP: 14096-900; Programa de Pós-Graduação em Tecnologia Ambiental, Universidade de Ribeirão Preto. Av. Costábile Romano, 2201 - Ribeirânia, Ribeirão Preto, SP, Brazil CEP: 14096-900.
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Feng X, Patel EU, White JL, Li S, Zhu X, Zhao N, Shi J, Park DE, Liu CM, Kaul R, Prodger JL, Quinn TC, Grabowski MK, Tobian AAR. Association of Oral Microbiome With Oral Human Papillomavirus Infection: A Population Study of the National Health and Nutrition Examination Survey, 2009-2012. J Infect Dis 2024; 230:726-735. [PMID: 38181070 PMCID: PMC11420769 DOI: 10.1093/infdis/jiae004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/19/2023] [Accepted: 01/04/2024] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND Oral human papillomavirus (HPV) infection and the oral microbiome are associated with oropharyngeal cancer. However, population-based data on the association of oral microbiome with oral HPV infection are limited. METHOD A cross-sectional analysis of 5496 20-59-year-old participants in the 2009-2012 National Health and Nutrition Examination Survey was performed. Associations with oral HPV infection were assessed using multivariable logistic regression for oral microbiome α-diversity (within-sample diversity), and using principal coordinate analysis and permutational multivariate analysis of variance for β-diversity (between-sample heterogeneity). RESULTS Overall, for α-diversity, a lower number of observed amplicon sequence variants (adjusted odds ratio [aOR] = 0.996; 95% confidence interval [CI] = .992-.999) and reduced Faith's phylogenetic diversity (aOR = 0.95; 95% CI = .90-.99) were associated with high-risk oral HPV infection. β-diversity showed differentiation of oral microbiome community by high-risk oral HPV infection as measured by Bray-Curtis dissimilarity (R2 = 0.054%; P = .029) and unweighted UniFrac distance (R2 = 0.046%; P = .045). There were differential associations when stratified by sex. CONCLUSIONS Both oral microbiome α-diversity and β-diversity were marginally associated with oral HPV infection. Longitudinal studies are needed to characterize the role of the microbiome in the natural history of oral HPV infection.
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Affiliation(s)
- Xinyi Feng
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Eshan U Patel
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Jodie L White
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Shilan Li
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Xianming Zhu
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ni Zhao
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Jianxin Shi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Daniel E Park
- Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA
| | - Cindy M Liu
- Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA
| | - Rupert Kaul
- Departments of Medicine and Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Jessica L Prodger
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Thomas C Quinn
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Division of Intramural Research, National Institute of Allergy and Infection Diseases, Baltimore, Maryland, USA
| | - M Kate Grabowski
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Aaron A R Tobian
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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Demehri S, Vardar S, Godoy C, Lopez JV, Samuel P, Kawai T, Ozga AT. Supragingival Plaque Microbiomes in a Diverse South Florida Population. Microorganisms 2024; 12:1921. [PMID: 39338595 PMCID: PMC11434252 DOI: 10.3390/microorganisms12091921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2024] [Revised: 08/31/2024] [Accepted: 09/05/2024] [Indexed: 09/30/2024] Open
Abstract
Trillions of microbes comprise the human oral cavity, collectively acting as another bodily organ. Although research is several decades into the field, there is no consensus on how oral microbiomes differ in underrepresented groups such as Hispanic, Black, and Asian populations living in the United States. Here, using 16S ribosomal RNA sequencing, we examine the bacterial ecology of supragingival plaque from four quadrants of the mouth along with a tongue swab from 26 healthy volunteers from South Florida (131 total sequences after filtering). As an area known to be a unique amalgamation of diverse cultures from across the globe, South Florida allows us to address the question of how supragingival plaque microbes differ across ethnic groups, thus potentially impacting treatment regiments related to oral issues. We assess overall phylogenetic abundance, alpha and beta diversity, and linear discriminate analysis of participants based on sex, ethnicity, sampling location in the mouth, and gingival health. Within this cohort, we find the presence of common phyla such as Firmicutes and common genera such as Streptococcus. Additionally, we find significant differences across sampling locations, sex, and gingival health. This research stresses the need for the continued incorporation of diverse populations within human oral microbiome studies.
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Affiliation(s)
- Sharlene Demehri
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA; (S.D.); (S.V.)
| | - Saynur Vardar
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA; (S.D.); (S.V.)
| | - Cristina Godoy
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Department of Public Health, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Jose V. Lopez
- Department of Biological Sciences, Halmos College of Arts and Sciences, Guy Harvey Oceanographic Center, Nova Southeastern University, Fort Lauderdale, FL 33328, USA (P.S.)
| | - Paisley Samuel
- Department of Biological Sciences, Halmos College of Arts and Sciences, Guy Harvey Oceanographic Center, Nova Southeastern University, Fort Lauderdale, FL 33328, USA (P.S.)
| | - Toshihisa Kawai
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Andrew T. Ozga
- Department of Biological Sciences, Halmos College of Arts and Sciences, Guy Harvey Oceanographic Center, Nova Southeastern University, Fort Lauderdale, FL 33328, USA (P.S.)
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10
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Li P, Zhang H, Dai M. Current status and prospect of gut and oral microbiome in pancreatic cancer: Clinical and translational perspectives. Cancer Lett 2024; 604:217274. [PMID: 39307411 DOI: 10.1016/j.canlet.2024.217274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 09/18/2024] [Accepted: 09/19/2024] [Indexed: 09/27/2024]
Abstract
Pancreatic cancer is a highly lethal malignancy, and its diagnosis and treatment continue to pose significant challenges. Despite advancements in surgical and comprehensive treatment methods, the five-year survival rate remains below 12 %. With the rapid development of microbiome science, the gut and oral microbiota, which are readily accessible and can be sampled non-invasively, have emerged as a novel area of interest in pancreatic cancer research. Dysbiosis in these microbial communities can induce persistent inflammatory responses and affect the host's immune system, promoting cancer development and impacting the efficacy of treatments like chemotherapy and immunotherapy. This review provides an up-to-date overview of the roles of both gut and oral microbiota in the onset, progression, diagnosis, and treatment of pancreatic cancer. It analyzes the potential of utilizing these microbiomes as biomarkers and therapeutic targets from a clinical application perspective. Furthermore, it discusses future research directions aimed at harnessing these insights to advance the diagnosis and treatment strategies for pancreatic cancer. By focusing on the microbiome's role in clinical and translational medicine, this review offers insights into improving pancreatic cancer diagnosis and treatment outcomes.
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Affiliation(s)
- Pengyu Li
- Department of General Surgery, Peking Union Medical College Hospital (PUMCH), Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Hanyu Zhang
- Department of General Surgery, Peking Union Medical College Hospital (PUMCH), Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China; Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Menghua Dai
- Department of General Surgery, Peking Union Medical College Hospital (PUMCH), Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.
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11
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Kamaruddin A, Harun WHAW, Bakri MM, Abidin SAZ, Giribabu N, Syed Abdul Rahman SN. Phytochemical profile and antimicrobial activity of Jatropha curcas extracts against oral microorganisms. Heliyon 2024; 10:e33422. [PMID: 39281546 PMCID: PMC11401117 DOI: 10.1016/j.heliyon.2024.e33422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 06/16/2024] [Accepted: 06/21/2024] [Indexed: 09/18/2024] Open
Abstract
Introduction The growing problem of antimicrobial resistance on a global scale has highlighted the need to investigate alternative antimicrobial agents with reduced side effects. Plant-derived secondary metabolites have emerged as potential contenders in tackling this challenge. Jatropha curcas, a perennial plant, has traditionally been utilized for the treatment of gum boils, toothaches, and infections. This plant exhibits a wide range of pharmacological properties. However, its potential as an antimicrobial agent against oral microorganisms has yet to be investigated. Hence, the objective of this study was to investigate the antimicrobial properties of Jatropha curcas extracts against selected bacteria and fungi commonly present in the oral cavity. Methodology Jatropha curcas samples were collected from Bagan Datuk, Perak, Malaysia, and subsequently identified at Universiti Malaya. The ethanolic extract of the leaves (ELJC) and the stem bark latex (LJC) of Jatropha curcas were tested against six species of oral microorganism: Streptococcus sanguinis , Streptococcus mutans, Streptococcus mitis, Lactobacillus helveticus, Candida albicans , Candida tropicalis, and a mixture of these microorganisms. The methods employed in this study were well diffusion assay, minimum inhibitory concentration, minimum bacterial concentration, live-dead assay, field emission scanning electron microscopy, and liquid chromatography with tandem mass spectrometry. Results ELJC and LJC demonstrated significant antimicrobial effects (p < 0.05). Treatment with ELJC and LJC resulted in morphological changes and increased death rates in the targeted microorganisms. ELJC was found to contain more than 300 bioactive compounds, with isovitexin, being the most abundant. In contrast, LJC exhibited over 1000 bioactive compounds with 2-hexyl-decanoic acid and 2,4,6-trihydroxybenzoic acid being the predominant constituents. Conclusion These findings suggest that the antimicrobial effects observed in ELJC and LJC against S. sanguinis and S. mutans can be primarily attributed to isovitexin, 2-hexyl-decanoic acid, and trihydroxybenzoic acid. However, further research and investigation are necessary to elucidate the mechanisms by which these constituents exert their antimicrobial effects on the microorganisms.
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Affiliation(s)
- Anita Kamaruddin
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | | | - Marina Mohd Bakri
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Syafiq Asnawi Zainal Abidin
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University, 47500, Subang Jaya, Selangor, Malaysia
| | - Nelli Giribabu
- Department of Physiology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
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12
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Anderson MH, Ait-Aissa K, Sahyoun AM, Abidi AH, Kassan M. Akkermansia muciniphila as a Potential Guardian against Oral Health Diseases: A Narrative Review. Nutrients 2024; 16:3075. [PMID: 39339675 PMCID: PMC11434887 DOI: 10.3390/nu16183075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2024] [Revised: 09/07/2024] [Accepted: 09/09/2024] [Indexed: 09/30/2024] Open
Abstract
The oral microbiome is a diverse ecosystem containing a community of symbiotic, commensal, and pathogenic microorganisms. One key microorganism linked to periodontal disease (PD) is Porphyromonas gingivalis (P. gingivalis), a Gram-negative anaerobic bacterium known to have several virulence factors that trigger inflammation and immune evasion. On the other hand, Akkermansia muciniphila (A. muciniphila), a symbiotic bacterium, has been recently shown to play an important role in mitigating inflammation and reducing periodontal damage. In vivo and in vitro studies have shown that A. muciniphila decreases inflammatory mediators and improves immune responses, suggesting its role in mitigating PD and related inflammatory systemic conditions such as diabetes, hypertension, and obesity. This review discusses the anti-inflammatory effects of A. muciniphila, its impact on periodontal health, and its potential role in managing systemic diseases. The overall aim is to elucidate how this bacterium might help reduce inflammation, improve oral health, and influence broader health outcomes.
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Affiliation(s)
- Molly H Anderson
- College of Dental Medicine, Lincoln Memorial University, LMU Tower, 1705 St. Mary Street, Knoxville, TN 37917, USA
| | - Karima Ait-Aissa
- College of Dental Medicine, Lincoln Memorial University, LMU Tower, 1705 St. Mary Street, Knoxville, TN 37917, USA
| | - Amal M Sahyoun
- College of Dental Medicine, Lincoln Memorial University, LMU Tower, 1705 St. Mary Street, Knoxville, TN 37917, USA
| | - Ammaar H Abidi
- College of Dental Medicine, Lincoln Memorial University, LMU Tower, 1705 St. Mary Street, Knoxville, TN 37917, USA
| | - Modar Kassan
- College of Dental Medicine, Lincoln Memorial University, LMU Tower, 1705 St. Mary Street, Knoxville, TN 37917, USA
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13
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de Lima PMN, Pereira TC, de Carvalho LS, dos Santos LF, Oliveira CER, Ramos LDP, Marcucci MC, Abu Hasna A, de Oliveira LD. Antimicrobial and synergistic effects of lemongrass and geranium essential oils against Streptococcus mutans, Staphylococcus aureus, and Candida spp. World J Crit Care Med 2024; 13:92531. [PMID: 39253314 PMCID: PMC11372514 DOI: 10.5492/wjccm.v13.i3.92531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/30/2024] [Accepted: 06/11/2024] [Indexed: 08/30/2024] Open
Abstract
BACKGROUND The oral cavity harbors more than 700 species of bacteria, which play crucial roles in the development of various oral diseases including caries, endodontic infection, periodontal infection, and diverse oral diseases. AIM To investigate the antimicrobial action of Cymbopogon Schoenanthus and Pelargonium graveolens essential oils against Streptococcus mutans, Staphylococcus aureus, Candida albicans, Ca. dubliniensis, and Ca. krusei. METHODS Minimum microbicidal concentration was determined following Clinical and Laboratory Standards Institute documents. The synergistic antimicrobial activity was evaluated using the Broth microdilution checkerboard method, and the antibiofilm activity was evaluated with the 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide assay. Data were analyzed by one-way analysis of variance followed by the Tukey post-hoc test (P ≤ 0.05). RESULTS C. schoenanthus and P. graveolens essential oils were as effective as 0.12% chlorhexidine against S. mutans and St. aureus monotypic biofilms after 24 h. After 24 h P. graveolens essential oil at 0.25% was more effective than the nystatin group, and C. schoenanthus essential oil at 0.25% was as effective as the nystatin group. CONCLUSION C. schoenanthus and P. graveolens essential oils are effective against S. mutans, St. aureus, Ca. albicans, Ca. dubliniensis, and Ca. krusei at different concentrations after 5 min and 24 h.
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Affiliation(s)
- Patrícia Michelle Nagai de Lima
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, São José dos Campos 12245000, SP, Brazil
| | - Thaís Cristine Pereira
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, São José dos Campos 12245000, SP, Brazil
| | - Lara Steffany de Carvalho
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, São José dos Campos 12245000, SP, Brazil
| | - Letícia Ferreira dos Santos
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, São José dos Campos 12245000, SP, Brazil
| | | | - Lucas de Paula Ramos
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, São José dos Campos 12245000, SP, Brazil
| | - Maria Cristina Marcucci
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, São José dos Campos 12245000, SP, Brazil
| | - Amjad Abu Hasna
- Department of Restorative Dentistry, Endodontics Division, Institute of Science and Technology, São Paulo State University, São José dos Campos 12245000, São Paulo, Brazil
| | - Luciane Dias de Oliveira
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, São José dos Campos 12245000, SP, Brazil
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14
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Govender P, Ghai M. Population-specific differences in the human microbiome: Factors defining the diversity. Gene 2024; 933:148923. [PMID: 39244168 DOI: 10.1016/j.gene.2024.148923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 08/15/2024] [Accepted: 09/03/2024] [Indexed: 09/09/2024]
Abstract
Differences in microbial communities at different body habitats define the microbiome composition of the human body. The gut, oral, skin vaginal fluid and tissue microbiome, are pivotal for human development and immune response and cross talk between these microbiomes is evident. Population studies reveal that various factors, such as host genetics, diet, lifestyle, aging, and geographical location are strongly associated with population-specific microbiome differences. The present review discusses the factors that shape microbiome diversity in humans, and microbiome differences in African, Asian and Caucasian populations. Gut microbiome studies show that microbial species Bacteroides is commonly found in individuals living in Western countries (Caucasian populations), while Prevotella is prevalent in non-Western countries (African and Asian populations). This association is mainly due to the high carbohydrate, high fat diet in western countries in contrast to high fibre, low fat diets in African/ Asian regions. Majority of the microbiome studies focus on the bacteriome component; however, interesting findings reveal that increased bacteriophage richness, which makes up the virome component, correlates with decreased bacterial diversity, and causes microbiome dysbiosis. An increase of Caudovirales (bacteriophages) is associated with a decrease in enteric bacteria in inflammatory bowel diseases. Future microbiome studies should evaluate the interrelation between bacteriome and virome to fully understand their significance in the pathogenesis and progression of human diseases. With ethnic health disparities becoming increasingly apparent, studies need to emphasize on the association of population-specific microbiome differences and human diseases, to develop microbiome-based therapeutics. Additionally, targeted phage therapy is emerging as an attractive alternative to antibiotics for bacterial infections. With rapid rise in microbiome research, focus should be on standardizing protocols, advanced bioinformatics tools, and reducing sequencing platform related biases. Ultimately, integration of multi-omics data (genomics, transcriptomics, proteomics and metabolomics) will lead to precision models for personalized microbiome therapeutics advancement.
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Affiliation(s)
- Priyanka Govender
- Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Westville, South Africa
| | - Meenu Ghai
- Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Westville, South Africa.
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Gupta A, Saleena LM, Kannan P, Shivachandran A. The impact of oral diseases on respiratory health and the influence of respiratory infections on the oral microbiome. J Dent 2024; 148:105213. [PMID: 38936454 DOI: 10.1016/j.jdent.2024.105213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024] Open
Abstract
OBJECTIVE The objective of this review is to examine the relationship between oral diseases and respiratory health, investigating how oral microbiome disruptions contribute to respiratory tract infections. Additionally, it aims to explore the impact of respiratory disease symptoms and treatments on the oral microbiome. DATA SOURCES The literature utilized in this review was sourced from studies focusing on the correlation between oral health and respiratory infections, spanning a period of 40 years. Various databases and scholarly sources were likely consulted to gather relevant research articles, reviews, and clinical studies. STUDY SELECTION This review summarizes four decades-long research, providing insights into the intricate relationship between oral and respiratory health. It delves into how oral diseases influence respiratory tract conditions and vice versa. The selection process likely involved identifying studies that addressed the interaction between oral microbiome disruptions and respiratory complications. CONCLUSION Oral diseases or poor oral habits have been known to increase the risk of getting respiratory infections. Modern techniques have demonstrated the relationship between oral disease and respiratory tract infections like influenza, chronic obstructive pulmonary diseases, asthma, and Pneumonia. Apart from that, the medications used to treat respiratory diseases affect oral physiological factors like the pH of saliva, and saliva flow rate, which can cause significant changes in the oral microbiome. This review provides regular oral hygiene and care that can prevent respiratory health and respiratory infections. CLINICAL SIGNIFICANCE Understanding the intricate relationship between oral health and respiratory infections is crucial for healthcare providers. Implementing preventive measures and promoting good oral hygiene habits can reduce respiratory tract infections and improve overall respiratory health outcomes.
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Affiliation(s)
- Annapurna Gupta
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamil Nadu 603203, India
| | - Lilly M Saleena
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamil Nadu 603203, India.
| | - Priya Kannan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamil Nadu 603203, India
| | - A Shivachandran
- Department of Oral Pathology, SRM Dental College and Hospital, SRM Institute of Science and Technology, SRM Nagar Kattankulathur, Kanchipuram, Chennai, Tamil Nadu 603203, India
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Parveen S, Alqahtani AS, Aljabri MY, Bajonaid A, Khan SS, Hassan AAHAA, Dawood T. Nationwide exploration: assessing oral microbiome knowledge among dental professionals in Saudi Arabia and its implications for oral health care. BMC Oral Health 2024; 24:1028. [PMID: 39217310 PMCID: PMC11366131 DOI: 10.1186/s12903-024-04770-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024] Open
Abstract
BACKGROUND The relationship between the microbiome and oral health is intricate, yet there is a lack of comprehensive knowledge regarding the microbiome's impact on oral health. Integrating knowledge regarding the oral microbiome and its significance in oral and systemic diseases holds profound implications for dental professionals in patient care and professional development. This study assessed dental professionals' oral microbiome comprehension and knowledge levels in Saudi Arabia and its implications for oral healthcare. METHODS Data were gathered using a cross-sectional design by administering a comprehensive online questionnaire to 253 dental professionals from diverse demographic backgrounds. The questionnaire, administered in English, was divided into four sections: (1) Microbiome awareness and understanding, (2) Diet, nutrition, and microbiome relationship, (3) Microbiome and oral and systemic diseases, and (4) Counselling, education, and implications. Statistical analyses were used to identify and understand underlying patterns, including descriptive statistics, chi-squared tests, ANOVA, and post hoc tests. The Spearman rank correlation coefficient was applied to assess self-rated knowledge. RESULTS Of the 253 participants, 94.6% were familiar with the term "microbiome." Merely 13% of participants considered the oral microbiome to be the second most diverse, following the gut microbiome. About 39.9% of participants knew the connection between oral mucosal diseases and the oral microbiome. Furthermore, only 6.7% thought there was a connection between systemic diseases and the oral microbiome. Participant comprehension of oral microbiome questions averaged 9.19 out of 13, with 83.7% scoring "good". There were significant differences in knowledge scores among dental specializations (F = 7.082, P < 0.001) and years of professional experience (F = 4.755, P = 0.003). Significantly, 53.8% of participants had uncertain self-perceptions of their knowledge of the oral microbiome, while only 0.8% rated their understanding as 'very good'. CONCLUSION Our findings reveal that dental professionals have varying levels of awareness and comprehension of the oral microbiome. Despite widespread awareness, understanding its diversity and implications for oral and systemic health remains limited. It is essential to address these gaps in knowledge through future research and educational interventions, considering the vital part that dental professionals play in promoting oral health through personalised dietary recommendations, lifestyle changes, and hygiene practices. These initiatives may promote a robust oral microbial community, enhance patient outcomes, and advance oral healthcare locally and globally.
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Affiliation(s)
- Sameena Parveen
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia.
| | - Ahmed Shaher Alqahtani
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - Mohammed Y Aljabri
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - Amal Bajonaid
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - Samar Saeed Khan
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia
| | | | - Tazeen Dawood
- Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia
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Rajasekaran JJ, Krishnamurthy HK, Bosco J, Jayaraman V, Krishna K, Wang T, Bei K. Oral Microbiome: A Review of Its Impact on Oral and Systemic Health. Microorganisms 2024; 12:1797. [PMID: 39338471 PMCID: PMC11434369 DOI: 10.3390/microorganisms12091797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 08/07/2024] [Accepted: 08/16/2024] [Indexed: 09/30/2024] Open
Abstract
PURPOSE OF REVIEW This review investigates the oral microbiome's composition, functions, influencing factors, connections to oral and systemic diseases, and personalized oral care strategies. RECENT FINDINGS The oral microbiome is a complex ecosystem consisting of bacteria, fungi, archaea, and viruses that contribute to oral health. Various factors, such as diet, smoking, alcohol consumption, lifestyle choices, and medical conditions, can affect the balance of the oral microbiome and lead to dysbiosis, which can result in oral health issues like dental caries, gingivitis, periodontitis, oral candidiasis, and halitosis. Importantly, our review explores novel associations between the oral microbiome and systemic diseases including gastrointestinal, cardiovascular, endocrinal, and neurological conditions, autoimmune diseases, and cancer. We comprehensively review the efficacy of interventions like dental probiotics, xylitol, oral rinses, fluoride, essential oils, oil pulling, and peptides in promoting oral health by modulating the oral microbiome. SUMMARY This review emphasizes the critical functions of the oral microbiota in dental and overall health, providing insights into the effects of microbial imbalances on various diseases. It underlines the significant connection between the oral microbiota and general health. Furthermore, it explores the advantages of probiotics and other dental care ingredients in promoting oral health and addressing common oral issues, offering a comprehensive strategy for personalized oral care.
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Affiliation(s)
- John J. Rajasekaran
- Vibrant Sciences LLC, Santa Clara, CA 95054, USA; (H.K.K.); (V.J.); (K.K.); (T.W.); (K.B.)
| | | | - Jophi Bosco
- Vibrant America LLC, Santa Clara, CA 95054, USA;
| | - Vasanth Jayaraman
- Vibrant Sciences LLC, Santa Clara, CA 95054, USA; (H.K.K.); (V.J.); (K.K.); (T.W.); (K.B.)
| | - Karthik Krishna
- Vibrant Sciences LLC, Santa Clara, CA 95054, USA; (H.K.K.); (V.J.); (K.K.); (T.W.); (K.B.)
| | - Tianhao Wang
- Vibrant Sciences LLC, Santa Clara, CA 95054, USA; (H.K.K.); (V.J.); (K.K.); (T.W.); (K.B.)
| | - Kang Bei
- Vibrant Sciences LLC, Santa Clara, CA 95054, USA; (H.K.K.); (V.J.); (K.K.); (T.W.); (K.B.)
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Sulaiman Y, Pacauskienė IM, Šadzevičienė R, Anuzyte R. Oral and Gut Microbiota Dysbiosis Due to Periodontitis: Systemic Implications and Links to Gastrointestinal Cancer: A Narrative Review. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:1416. [PMID: 39336457 PMCID: PMC11433653 DOI: 10.3390/medicina60091416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 08/19/2024] [Accepted: 08/28/2024] [Indexed: 09/30/2024]
Abstract
Periodontitis can disrupt oral and gut microbiota, leading to dysbiosis that affects overall systemic health. Besides the spread of periodontal pathogens by the hematogenous route, they can also be translocated into the gastrointestinal tract, possibly intervening in the neoplastic process in the gastrointestinal tract. This manuscript reviews the relationship between oral and gut microbiota due to periodontitis, discussing systemic health implications and potential links to gastrointestinal cancer. This article highlights the significance and effect of dysbiosis in the gut, emphasizing the importance of maintaining oral health to prevent systemic diseases. Lastly, it will go through therapeutic innovations such as probiotics and oral microbiota analysis tools for systemic disease detection. These findings will mark the integration of oral health management in clinical practice to lower systemic disease risk and improve overall patient outcomes. Aim of work: This manuscript aims to unravel the pathological interaction between oral and gut microbiota and their bidirectional effect on systemic diseases. Materials and methods: The review was performed using the MEDLINE and ScienceDirect databases. Reviewed articles were published in English between the year 2015 and 2024. The search used keywords such as ("oral microbiota" AND "periodontal disease") OR ("oral microbiota" AND "gastrointestinal cancer") OR ("Porphyromonas gingivalis" AND "periodontal disease") OR ("Helicobacter pylori" AND "gastric cancer") OR ("gut microbiome" AND "inflammatory bowel disease") OR ("oral microbiome" AND "systemic diseases"). Conclusions: The dysbiotic change in the oral cavity due to periodontitis is linked directly and indirectly to systemic diseases such as IBS, neurodegenerative diseases, muscle joint diseases, respiratory infections, and gastrointestinal cancer; this underscores the importance of maintaining oral hygiene for prophylaxis of oral diseases and the prevention of systemic diseases. A better understanding of the interconnections between oral health and systemic diseases will integrate oral health management to offer new prevention, diagnostic, and treatment opportunities to improve overall patient outcomes.
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Affiliation(s)
- Yaman Sulaiman
- Clinic of Dental and Oral Pathology, Faculty of Odontology, Medical Academy, Lithuanian University of Health Sciences, Eivenių Str. 2, LT-50161 Kaunas, Lithuania
| | - Ingrida Marija Pacauskienė
- Clinic of Dental and Oral Pathology, Faculty of Odontology, Medical Academy, Lithuanian University of Health Sciences, Eivenių Str. 2, LT-50161 Kaunas, Lithuania
| | - Renata Šadzevičienė
- Clinic of Dental and Oral Pathology, Faculty of Odontology, Medical Academy, Lithuanian University of Health Sciences, Eivenių Str. 2, LT-50161 Kaunas, Lithuania
| | - Rugile Anuzyte
- Clinic of Dental and Oral Pathology, Faculty of Odontology, Medical Academy, Lithuanian University of Health Sciences, Eivenių Str. 2, LT-50161 Kaunas, Lithuania
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Talapko J, Erić S, Meštrović T, Stipetić MM, Juzbašić M, Katalinić D, Bekić S, Muršić D, Flam J, Belić D, Lešić D, Fureš R, Markanović M, Škrlec I. The Impact of Oral Microbiome Dysbiosis on the Aetiology, Pathogenesis, and Development of Oral Cancer. Cancers (Basel) 2024; 16:2997. [PMID: 39272855 PMCID: PMC11394246 DOI: 10.3390/cancers16172997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2024] [Revised: 08/25/2024] [Accepted: 08/27/2024] [Indexed: 09/15/2024] Open
Abstract
Oral squamous cell carcinoma (OSCC) is the most common head and neck cancer. Although the oral cavity is an easily accessible area for visual examination, the OSCC is more often detected at an advanced stage. The global prevalence of OSCC is around 6%, with increasing trends posing a significant health problem due to the increase in morbidity and mortality. The oral cavity microbiome has been the target of numerous studies, with findings highlighting the significant role of dysbiosis in developing OSCC. Dysbiosis can significantly increase pathobionts (bacteria, viruses, fungi, and parasites) that trigger inflammation through their virulence and pathogenicity factors. In contrast, chronic bacterial inflammation contributes to the development of OSCC. Pathobionts also have other effects, such as the impact on the immune system, which can alter immune responses and contribute to a pro-inflammatory environment. Poor oral hygiene and carbohydrate-rich foods can also increase the risk of developing oral cancer. The risk factors and mechanisms of OSCC development are not yet fully understood and remain a frequent research topic. For this reason, this narrative review concentrates on the issue of dysbiosis as the potential cause of OSCC, as well as the underlying mechanisms involved.
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Affiliation(s)
- Jasminka Talapko
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Suzana Erić
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Radiotherapy and Oncology, University Hospital Center Osijek, 31000 Osijek, Croatia
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Tomislav Meštrović
- University Centre Varaždin, University North, 42000 Varaždin, Croatia
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA 98195, USA
- Department for Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA 98195, USA
| | - Marinka Mravak Stipetić
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Martina Juzbašić
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Darko Katalinić
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Sanja Bekić
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Family Medicine Practice, 31000 Osijek, Croatia
| | - Dora Muršić
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Radiotherapy and Oncology, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Josipa Flam
- Department of Radiotherapy and Oncology, University Hospital Center Osijek, 31000 Osijek, Croatia
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Dino Belić
- Department of Radiotherapy and Oncology, University Hospital Center Osijek, 31000 Osijek, Croatia
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | | | - Rajko Fureš
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Gynecology and Obstetrics, Zabok General Hospital and Croatian Veterans Hospital, 49210 Zabok, Croatia
| | - Manda Markanović
- Department of Clinical and Molecular Microbiology, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
| | - Ivana Škrlec
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
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20
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Anitua E, Murias-Freijo A, Tierno R, Tejero R, Alkhraisat MH. Assessing peri-implant bacterial community structure: the effect of microbiome sample collection method. BMC Oral Health 2024; 24:1001. [PMID: 39187802 PMCID: PMC11348724 DOI: 10.1186/s12903-024-04675-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 07/25/2024] [Indexed: 08/28/2024] Open
Abstract
BACKGROUND Oral microbiota comprises polymicrobial communities shaped by mutualistic coevolution with the host, contributing to homeostasis and regulating immune function. Nevertheless, dysbiosis of oral bacterial communities is associated with a number of clinical symptoms that ranges from infections to oral cancer. Peri-implant diseases are biofilm-associated inflammatory conditions affecting the soft and hard tissues around dental implants. Characterization and identification of the biofilm community are essential for the understanding of the pathophysiology of such diseases. For that sampling methods should be representative of the biofilm communities Therefore, there is a need to know the effect of different sampling strategies on the biofilm characterization by next generation sequencing. METHODS With the aim of selecting an appropriate microbiome sampling procedure for periimplant biofilms, next generation sequencing was used for characterizing the bacterial communities obtained by three different sampling strategies two months after transepithelial abutment placement: adjacent periodontal crevicular fluid (ToCF), crevicular fluid from transepithelial abutment (TACF) and transepithelial abutment (TA). RESULTS Significant differences in multiple alpha diversity indices were detected at both the OTU and the genus level between different sampling procedures. Differentially abundant taxa were detected between sample collection strategies, including peri-implant health and disease related taxa. At the community level significant differences were also detected between TACF and TA and also between TA and ToCF. Moreover, differential network properties and association patterns were identified. CONCLUSIONS The selection of sample collection strategy can significantly affect the community composition and structure. TRIAL REGISTRATION This research is part of a randomized clinical trial that was designed to assess the effect of transepithelial abutment surface on the biofilm formation. The trial was registered at Trial Registration ClinicalTrials.gov under the number NCT03554876.
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Affiliation(s)
- Eduardo Anitua
- BTI-Biotechnology Institute, Vitoria, Spain.
- University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Jacinto Quincoces, 39, Vitoria (Álava), 01007, Spain.
| | - Alia Murias-Freijo
- University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Jacinto Quincoces, 39, Vitoria (Álava), 01007, Spain
- Biomedical Investigation, Faculty of Medicine and Dentistry, University of the Basque Country, Leioa, Spain
| | - Roberto Tierno
- BTI-Biotechnology Institute, Vitoria, Spain
- University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Jacinto Quincoces, 39, Vitoria (Álava), 01007, Spain
| | - Ricardo Tejero
- BTI-Biotechnology Institute, Vitoria, Spain
- University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Jacinto Quincoces, 39, Vitoria (Álava), 01007, Spain
| | - Mohammad Hamdan Alkhraisat
- BTI-Biotechnology Institute, Vitoria, Spain
- University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Jacinto Quincoces, 39, Vitoria (Álava), 01007, Spain
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21
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Leonov G, Salikhova D, Starodubova A, Vasilyev A, Makhnach O, Fatkhudinov T, Goldshtein D. Oral Microbiome Dysbiosis as a Risk Factor for Stroke: A Comprehensive Review. Microorganisms 2024; 12:1732. [PMID: 39203574 PMCID: PMC11357103 DOI: 10.3390/microorganisms12081732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 08/07/2024] [Accepted: 08/19/2024] [Indexed: 09/03/2024] Open
Abstract
Stroke represents a significant global health burden, with a substantial impact on mortality, morbidity, and long-term disability. The examination of stroke biomarkers, particularly the oral microbiome, offers a promising avenue for advancing our understanding of the factors that contribute to stroke risk and for developing strategies to mitigate that risk. This review highlights the significant correlations between oral diseases, such as periodontitis and caries, and the onset of stroke. Periodontal pathogens within the oral microbiome have been identified as a contributing factor in the exacerbation of risk factors for stroke, including obesity, dyslipidemia, atherosclerosis, hypertension, and endothelial dysfunction. The alteration of the oral microbiome may contribute to these conditions, emphasizing the vital role of oral health in the prevention of cardiovascular disease. The integration of dental and medical health practices represents a promising avenue for enhancing stroke prevention efforts and improving patient outcomes.
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Affiliation(s)
- Georgy Leonov
- Federal Research Center of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia;
| | - Diana Salikhova
- Institute of Molecular and Cellular Medicine, RUDN University, 117198 Moscow, Russia; (D.S.); (A.V.); (T.F.)
- Research Centre for Medical Genetics, 115522 Moscow, Russia; (O.M.); (D.G.)
| | - Antonina Starodubova
- Federal Research Center of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia;
- Therapy Faculty, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Andrey Vasilyev
- Institute of Molecular and Cellular Medicine, RUDN University, 117198 Moscow, Russia; (D.S.); (A.V.); (T.F.)
- Research Centre for Medical Genetics, 115522 Moscow, Russia; (O.M.); (D.G.)
- E.V. Borovsky Institute of Dentistry, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), 119991 Moscow, Russia
- Central Research Institute of Dental and Maxillofacial Surgery, 119021 Moscow, Russia
| | - Oleg Makhnach
- Research Centre for Medical Genetics, 115522 Moscow, Russia; (O.M.); (D.G.)
| | - Timur Fatkhudinov
- Institute of Molecular and Cellular Medicine, RUDN University, 117198 Moscow, Russia; (D.S.); (A.V.); (T.F.)
| | - Dmitry Goldshtein
- Research Centre for Medical Genetics, 115522 Moscow, Russia; (O.M.); (D.G.)
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22
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Ibarlucea-Jerez M, Monnoye M, Chambon C, Gérard P, Licandro H, Neyraud E. Fermented food consumption modulates the oral microbiota. NPJ Sci Food 2024; 8:55. [PMID: 39174559 PMCID: PMC11341675 DOI: 10.1038/s41538-024-00298-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 07/26/2024] [Indexed: 08/24/2024] Open
Abstract
Fermented food consumption is recommended for health and environmental purposes. While it is known to impact gut microbiota, further investigation is needed to establish connections with the oral microbiota. For this purpose, we investigated the effect of daily consumption of a model cheese containing 3 Lactic Acid Bacteria (LAB) species on the oral microbiota of rats following a 3-week diet. Cheese consumption transiently modifies the oral microbiota and leads to a transient persistence of LAB in the oral cavity of 1/3 of the animals. The origin of this variability was partly explained by an overrepresentation of salivary proteins involved in the response to oxidative stress in animals without LAB persistence. These findings highlight the significance of fermented foods in shaping the diversity of the oral microbiota. Additionally, they suggest that variations in the salivary proteome among individuals may influence the permissiveness of the oral microbiota towards exogenous microorganisms.
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Affiliation(s)
- M Ibarlucea-Jerez
- Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, Dijon, France
- UMR A 02.102 Procédés Alimentaires et Microbiologiques (PAM), Institut Agro Dijon, Univ. Bourgogne Franche-Comté, Dijon, France
| | - M Monnoye
- Institut MICALIS, INRAE, AgroParisTech, Univ. Paris-Saclay, Jouy-en-Josas, France
| | - C Chambon
- Plateforme d'Exploration du Métabolisme Composante Protéomique (PFEMcp), INRAE, Saint-Genès Champanelle, France
- UR0370 Qualité des Produits Animaux (QuaPA), INRAE, Saint-Genès Champanelle, France
| | - P Gérard
- Institut MICALIS, INRAE, AgroParisTech, Univ. Paris-Saclay, Jouy-en-Josas, France
| | - H Licandro
- UMR A 02.102 Procédés Alimentaires et Microbiologiques (PAM), Institut Agro Dijon, Univ. Bourgogne Franche-Comté, Dijon, France
| | - E Neyraud
- Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, Dijon, France.
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23
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Bostanghadiri N, Kouhzad M, Taki E, Elahi Z, Khoshbayan A, Navidifar T, Darban-Sarokhalil D. Oral microbiota and metabolites: key players in oral health and disorder, and microbiota-based therapies. Front Microbiol 2024; 15:1431785. [PMID: 39228377 PMCID: PMC11368800 DOI: 10.3389/fmicb.2024.1431785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 08/02/2024] [Indexed: 09/05/2024] Open
Abstract
The review aimed to investigate the diversity of oral microbiota and its influencing factors, as well as the association of oral microbiota with oral health and the possible effects of dysbiosis and oral disorder. The oral cavity harbors a substantial microbial burden, which is particularly notable compared to other organs within the human body. In usual situations, the microbiota exists in a state of equilibrium; however, when this balance is disturbed, a multitude of complications arise. Dental caries, a prevalent issue in the oral cavity, is primarily caused by the colonization and activity of bacteria, particularly streptococci. Furthermore, this environment also houses other pathogenic bacteria that are associated with the onset of gingival, periapical, and periodontal diseases, as well as oral cancer. Various strategies have been employed to prevent, control, and treat these disorders. Recently, techniques utilizing microbiota, like probiotics, microbiota transplantation, and the replacement of oral pathogens, have caught the eye. This extensive examination seeks to offer a general view of the oral microbiota and their metabolites concerning oral health and disease, and also the resilience of the microbiota, and the techniques used for the prevention, control, and treatment of disorders in this specific area.
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Affiliation(s)
- Narjess Bostanghadiri
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mobina Kouhzad
- Department of Genetics, Faculty of Science, Islamic Azad University North Tehran Branch, Tehran, Iran
| | - Elahe Taki
- Department of Microbiology, School of Medicine, Kermanshah University of Medical Science, Kermanshah, Iran
| | - Zahra Elahi
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Amin Khoshbayan
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Tahereh Navidifar
- Department of Basic Sciences, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
| | - Davood Darban-Sarokhalil
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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24
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Hu W, Chen S, Zou X, Chen Y, Luo J, Zhong P, Ma D. Oral microbiome, periodontal disease and systemic bone-related diseases in the era of homeostatic medicine. J Adv Res 2024:S2090-1232(24)00362-X. [PMID: 39159722 DOI: 10.1016/j.jare.2024.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 08/03/2024] [Accepted: 08/12/2024] [Indexed: 08/21/2024] Open
Abstract
BACKGROUND Homeostasis is a state of self-regulation and dynamic equilibrium, maintaining the good physiological functions of each system in living organisms. In the oral cavity, the interaction between the host and the oral microbiome forms oral microbial homeostasis. Physiological bone remodeling and renewal can occur under the maintenance of oral microbial homeostasis. The imbalance of bone homeostasis is a key mechanism leading to the occurrence of systemic bone-related diseases. Considering the importance of oral microbial homeostasis in the maintenance of bone homeostasis, it still lacks a complete understanding of the relationship between oral microbiome, periodontal disease and systemic bone-related diseases. AIM OF REVIEW This review focuses on the homeostatic changes, pathogenic routes and potential mechanisms in the oral microbiome in periodontal disease and systemic bone-related diseases such as rheumatoid arthritis, osteoarthritis, osteoporosis and osteomyelitis. Additionally, this review discusses oral microbiome-based diagnostic approaches and explores probiotics, mesenchymal stem cells, and oral microbiome transplantation as promising treatment strategies. KEY SCIENTIFIC CONCEPTS OF REVIEW This review highlights the association between oral microbial homeostasis imbalance and systemic bone-related diseases, and highlights the possibility of remodeling oral microbial homeostasis for the prevention and treatment of systemic bone-related diseases.
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Affiliation(s)
- Weiqi Hu
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, No 366 Jiangnan Avenue South, Guangzhou, Guangdong Province 510280, China
| | - Shuoling Chen
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, No 366 Jiangnan Avenue South, Guangzhou, Guangdong Province 510280, China
| | - Xianghui Zou
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, No 366 Jiangnan Avenue South, Guangzhou, Guangdong Province 510280, China
| | - Yan Chen
- Department of Pediatric Dentistry, Stomatological Hospital, School of Stomatology, Southern Medical University, No 366 Jiangnan Avenue South, Guangzhou, Guangdong Province 510280, China
| | - Jiayu Luo
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, No 366 Jiangnan Avenue South, Guangzhou, Guangdong Province 510280, China
| | - Peiliang Zhong
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, No 366 Jiangnan Avenue South, Guangzhou, Guangdong Province 510280, China
| | - Dandan Ma
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, No 366 Jiangnan Avenue South, Guangzhou, Guangdong Province 510280, China.
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25
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Margutti P, D’Ambrosio A, Zamboni S. Microbiota-Derived Extracellular Vesicle as Emerging Actors in Host Interactions. Int J Mol Sci 2024; 25:8722. [PMID: 39201409 PMCID: PMC11354844 DOI: 10.3390/ijms25168722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 07/26/2024] [Accepted: 08/01/2024] [Indexed: 09/02/2024] Open
Abstract
The human microbiota is an intricate micro-ecosystem comprising a diverse range of dynamic microbial populations mainly consisting of bacteria, whose interactions with hosts strongly affect several physiological and pathological processes. The gut microbiota is being increasingly recognized as a critical player in maintaining homeostasis, contributing to the main functions of the intestine and distal organs such as the brain. However, gut dysbiosis, characterized by composition and function alterations of microbiota with intestinal barrier dysfunction has been linked to the development and progression of several pathologies, including intestinal inflammatory diseases, systemic autoimmune diseases, such as rheumatic arthritis, and neurodegenerative diseases, such as Alzheimer's disease. Moreover, oral microbiota research has gained significant interest in recent years due to its potential impact on overall health. Emerging evidence on the role of microbiota-host interactions in health and disease has triggered a marked interest on the functional role of bacterial extracellular vesicles (BEVs) as mediators of inter-kingdom communication. Accumulating evidence reveals that BEVs mediate host interactions by transporting and delivering into host cells effector molecules that modulate host signaling pathways and cell processes, influencing health and disease. This review discusses the critical role of BEVs from the gut, lung, skin and oral cavity in the epithelium, immune system, and CNS interactions.
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Affiliation(s)
- Paola Margutti
- Department of Neurosciences, Istituto Superiore di Sanità, 00161 Rome, Italy; (A.D.); (S.Z.)
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26
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Al-Sarraj F, Albiheyri R, Qari M, Alotaibi M, Al-Zahrani M, Anwar Y, Alghamdi MA, Nass NM, Bouback T, Alotibi I, Radhwi O, Sajer BH, Redhwan A, Al-Matary MA, Almanzalawi EA, Elshafie HS. Genetic Patterns of Oral Cavity Microbiome in Patients with Sickle Cell Disease. Int J Mol Sci 2024; 25:8570. [PMID: 39201258 PMCID: PMC11354819 DOI: 10.3390/ijms25168570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 07/29/2024] [Accepted: 08/01/2024] [Indexed: 09/02/2024] Open
Abstract
The Middle Eastern prevalence of sickle cell anemia, a genetic disorder that affects red blood cells, necessitates additional research. On a molecular level, we sought to identify and sort the oral microbiota of healthy individuals and those with sickle cell anemia. Furthermore, it is crucial to comprehend how changes in the genetic makeup of the oral microbiota impact the state of sickle cell anemia. Using next-generation sequencing, the 16S rRNA amplicon was examined using saliva samples from 36 individuals with sickle cell anemia and healthy individuals. These samples were obtained from sickle cell anemia patients (18 samples) and healthy control participants (controls, 18 samples). Various analyses are conducted using bioinformatic techniques to identify distinct species and their relative abundance. Streptococcus, followed by Fusobacterium nucleatum, Prevotella, and Veillonella were the most prevalent genera of bacteria in the saliva of the SCA and non-SCA individuals according to our findings. Rothia mucilaginosa, Prevotella scoposa, and Veillonella dispar species were the dominant species in both sickle cell anemia and non-sickle cell anemia subjects. Streptococcus salivarius, Actinomyces graevenitzii, Actinomyces odontolyticus, and Actinomyces georgiae spp. were the most prevalent bacterial spp. in the studied SCA cases. The sequencing of the 16S rRNA gene yielded relative abundance values that were visualized through a heatmap analysis. Alterations in the oral microflora's constitution can significantly affect the susceptibility of sickle cell anemia patients to develop more severe health complications. Salivary diagnosis is a potential tool for predicting and preventing oral microbiome-related diseases in the future.
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Affiliation(s)
- Faisal Al-Sarraj
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (R.A.); (Y.A.); (M.A.A.); (N.M.N.); (T.B.); (B.H.S.); (M.A.A.-M.); (E.A.A.)
| | - Raed Albiheyri
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (R.A.); (Y.A.); (M.A.A.); (N.M.N.); (T.B.); (B.H.S.); (M.A.A.-M.); (E.A.A.)
- Centre of Excellence in BioNanoscience Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammed Qari
- Hematology Department, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.Q.); (O.R.)
- Hematology Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammed Alotaibi
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (R.A.); (Y.A.); (M.A.A.); (N.M.N.); (T.B.); (B.H.S.); (M.A.A.-M.); (E.A.A.)
| | - Majid Al-Zahrani
- Biological Science Department, College of Science and Art, King Abdulaziz University, Rabigh 21991, Saudi Arabia;
| | - Yasir Anwar
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (R.A.); (Y.A.); (M.A.A.); (N.M.N.); (T.B.); (B.H.S.); (M.A.A.-M.); (E.A.A.)
| | - Mashail A. Alghamdi
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (R.A.); (Y.A.); (M.A.A.); (N.M.N.); (T.B.); (B.H.S.); (M.A.A.-M.); (E.A.A.)
| | - Nada M. Nass
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (R.A.); (Y.A.); (M.A.A.); (N.M.N.); (T.B.); (B.H.S.); (M.A.A.-M.); (E.A.A.)
- Immunology Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Thamer Bouback
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (R.A.); (Y.A.); (M.A.A.); (N.M.N.); (T.B.); (B.H.S.); (M.A.A.-M.); (E.A.A.)
- Princess Dr. Najla Bint Saud Al-Saud Center for Excellence Research in Biotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Ibrahim Alotibi
- Health Information Technology Department, Applied College, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Osman Radhwi
- Hematology Department, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.Q.); (O.R.)
- Hematology Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Bayan H. Sajer
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (R.A.); (Y.A.); (M.A.A.); (N.M.N.); (T.B.); (B.H.S.); (M.A.A.-M.); (E.A.A.)
- Immunology Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Alya Redhwan
- Department of Health, College of Health and Rehabilitation Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Mohammed A. Al-Matary
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (R.A.); (Y.A.); (M.A.A.); (N.M.N.); (T.B.); (B.H.S.); (M.A.A.-M.); (E.A.A.)
- Department of Animal Production, Faculty of Agriculture, Sana’a University, Sana’a P.O. Box 1247, Yemen
| | - Enas A. Almanzalawi
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (R.A.); (Y.A.); (M.A.A.); (N.M.N.); (T.B.); (B.H.S.); (M.A.A.-M.); (E.A.A.)
| | - Hazem S. Elshafie
- Department of Agricultural, Forestry, Food and Environmental Sciences (DAFE), University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
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Teles AM, Pina C, Cardoso IL, Tramontana A, Cardoso M, Duarte AS, Bartolomeu M, Noites R. Degree of Contamination of Gutta-Percha Points by Staphylococcus aureus (MRSA/MSSA) Strains. Int J Mol Sci 2024; 25:8566. [PMID: 39201252 PMCID: PMC11354985 DOI: 10.3390/ijms25168566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 07/31/2024] [Accepted: 08/02/2024] [Indexed: 09/02/2024] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is considered one of the most harmful bacteria to human health. Dentistry, like all healthcare disciplines, places great emphasis on preventing scenarios that may result in cross-infection. Although various tested and already used materials are suitable for filling the root canal system, Gutta-Percha (GP) remains the preferred and widely accepted gold standard. OBJECTIVE We performed an in vitro analysis of the contamination of GP points, regarding the strains of Methicillin-resistant (MRSA) and Methicillin-sensitive (MSSA) Staphylococcus aureus, using classical microbiology methods and molecular biology techniques. METHODS Gutta-Percha points of two different brands from opened packages (already in use for 1 month) were collected for analysis. The assessment involved incubating the GP points in Brain Heart Infusion (BHI) medium to detect microbial growth. Growing microorganisms were plated on a selective and differential chromogenic medium for MRSA/MSSA strains, and the identification of isolates was confirmed by Polymerase Chain Reaction (PCR). In the case of microbial growth, the GP point was submitted to a disinfection protocol. RESULTS From the 315 collected GP points, only 6 (1.9%) resulted in being positive for microbial growth. After confirmation by PCR, only one sample of the six GP points was contaminated by MRSA, and the remaining five were MSSA-contaminated. The disinfection protocol was effective in all contaminated GP points. CONCLUSIONS The Gutta-Percha points from opened pre-sterilized packages showed a very low degree of contamination by MRSA/MSSA. However, the detection of MSSA and MRSA strains raises concerns about potential contamination in dental clinic environments, and this risk cannot be considered negligible.
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Affiliation(s)
- Ana Moura Teles
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal; (A.M.T.); (M.C.); (A.S.D.); (M.B.)
- Centre for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | - Cristina Pina
- FCS-UFP, Universidade Fernando Pessoa, Faculdade de Ciências da Saúde, 4200-150 Porto, Portugal; (C.P.); (I.L.C.); (A.T.)
- FP-I3ID, Instituto de Investigação, Inovação e Desenvolvimento, FP-BHS, Universidade Fernando Pessoa, Biomedical and Health Sciences, 4249-004 Porto, Portugal
- CINTESIS.UFP@RISE, Centro de Investigação em Tecnologias e Serviços de Saúde, Rede de Investigação em Saúde, Universidade Fernando Pessoa, 4200-450 Porto, Portugal
| | - Inês Lopes Cardoso
- FCS-UFP, Universidade Fernando Pessoa, Faculdade de Ciências da Saúde, 4200-150 Porto, Portugal; (C.P.); (I.L.C.); (A.T.)
- FP-I3ID, Instituto de Investigação, Inovação e Desenvolvimento, FP-BHS, Universidade Fernando Pessoa, Biomedical and Health Sciences, 4249-004 Porto, Portugal
- CINTESIS.UFP@RISE, Centro de Investigação em Tecnologias e Serviços de Saúde, Rede de Investigação em Saúde, Universidade Fernando Pessoa, 4200-450 Porto, Portugal
| | - Antea Tramontana
- FCS-UFP, Universidade Fernando Pessoa, Faculdade de Ciências da Saúde, 4200-150 Porto, Portugal; (C.P.); (I.L.C.); (A.T.)
| | - Miguel Cardoso
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal; (A.M.T.); (M.C.); (A.S.D.); (M.B.)
| | - Ana Sofia Duarte
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal; (A.M.T.); (M.C.); (A.S.D.); (M.B.)
- Centre for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | - Maria Bartolomeu
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal; (A.M.T.); (M.C.); (A.S.D.); (M.B.)
- Centre for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | - Rita Noites
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal; (A.M.T.); (M.C.); (A.S.D.); (M.B.)
- Centre for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
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Tao K, Yuan Y, Xie Q, Dong Z. Relationship between human oral microbiome dysbiosis and neuropsychiatric diseases: An updated overview. Behav Brain Res 2024; 471:115111. [PMID: 38871130 DOI: 10.1016/j.bbr.2024.115111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/24/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024]
Abstract
The role of the gut-brain axis in mental health disorders has been extensively studied. As the oral cavity is the starting point of the digestive tract, the role that the oral microbiota plays in mental health disorders has gained recent attention. Oral microbiota can enter the bloodstream and trigger inflammatory responses or translocate to the brain through the trigeminal nerve or olfactory system. Hence, the concept of the oral microbiota-brain axis has emerged. Several hypotheses have been suggested that the oral microbiota can enter the gastrointestinal tract and affect the gut-brain axis; however, literature describing oral-brain communication remains limited. This review summarizes the characteristics of oral microbiota and its mechanisms associated with mental health disorders. Through a comprehensive examination of the relationship between oral microbiota and various neuropsychiatric diseases, such as anxiety, depression, schizophrenia, autism spectrum disorder, epilepsy, Parkinson's disease, and dementia, this review seeks to identify promising avenues of future research.
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Affiliation(s)
- Kai Tao
- West China School of Medicine, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Yanling Yuan
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Qinglian Xie
- Department of Outpatient, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China; Department of Outpatient, West China Xiamen Hospital, Sichuan University, Fujian 361022, People's Republic of China.
| | - Zaiquan Dong
- Mental Health Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China.
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Goloshchapov OV, Chukhlovin AB, Bug DS, Polev DE, Kosarev OV, Klementeva RV, Izmailova EA, Kazantsev IV, Khalipskaia MS, Goloshchapova МО, Yudintseva OS, Barkhatov IM, Petukhova NV, Zubarovskaya LS, Kulagin AD, Moiseev IS. Safety, Feasibility, and Advantages of Oral Microbiota Transplantation: The First Clinical Case. J Pediatr Hematol Oncol 2024; 46:287-296. [PMID: 38875447 PMCID: PMC11268550 DOI: 10.1097/mph.0000000000002896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 04/30/2024] [Indexed: 06/16/2024]
Abstract
The pilot clinical study presented demonstrates the possibility, safety, and effectiveness of oral microbiota transplantation from a healthy donor to a patient with neuroblastoma to prevent chemotherapy-induced oral mucositis. A 6-month-old patient with a diagnosis of retroperitoneal neuroblastoma was treated according to the NB 2004 protocol. Due to the development of severe oral mucositis, it was decided to perform oral microbiota transplantation. During the next 3 chemotherapy cycles and conditioning regimen before autologous hematopoietic cell transplantation (auto-HCT), the patient was repeatedly injected per os with donor saliva from her healthy mother. Oral microbiota transplantation was shown to effectively prevent the development of oral mucositis after chemotherapy, and only grade 1 oral mucositis developed after auto-HCT. In all loci of the oral cavity, there was a decreased abundance of bacteria from the Staphylococcaceae, Micrococcaceae, and Xanthomonadaceae families. Conversely, there was an increase in the relative abundance of Streptococcaceae and certain other bacterial taxa. In conclusion, the transplantation of maternal saliva in this patient prevented severe mucositis and was accompanied by a compositional change of the patient's oral microbiota. No adverse events due to the transplantation of maternal saliva were noted.
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Affiliation(s)
| | | | | | | | - Oleg V. Kosarev
- Saint Petersburg Mining University, Saint Petersburg, Russian Federation
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Jameie M, Ahli B, Ghadir S, Azami M, Amanollahi M, Ebadi R, Rafati A, Naser Moghadasi A. The hidden link: How oral and respiratory microbiomes affect multiple sclerosis. Mult Scler Relat Disord 2024; 88:105742. [PMID: 38964239 DOI: 10.1016/j.msard.2024.105742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/16/2024] [Accepted: 06/20/2024] [Indexed: 07/06/2024]
Abstract
BACKGROUND Extensive research has explored the role of gut microbiota in multiple sclerosis (MS). However, the impact of microbial communities in the oral cavity and respiratory tract on MS is an emerging area of investigation. PURPOSE We aimed to review the current literature related to the nasal, oral, and lung microbiota in people with MS (PwMS). METHODS We conducted a narrative review of clinical and preclinical original studies on PubMed that explored the relationship between the bacterial or viral composition of the nasal, lung, and oral microbiota and MS. Additionally, to find relevant studies not retrieved initially, we also searched for references in related review papers, as well as the references cited within the included studies. RESULTS AND CONCLUSIONS Thirteen studies were meticulously reviewed in three sections; oral microbiota (n = 8), nasal microbiota (n = 3), and lung microbiota (n = 2), highlighting considerable alterations in the oral and respiratory microbiome of PwMS compared to healthy controls (HCs). Genera like Aggregatibacter and Streptococcus were less abundant in the oral microbiota of PwMS compared to HCs, while Staphylococcus, Leptotrichia, Fusobacterium, and Bacteroides showed increased abundance in PwMS. Additionally, the presence of specific bacteria, including Streptococcus sanguinis, within the oral microbiota was suggested to influence Epstein-Barr virus reactivation, a well-established risk factor for MS. Studies related to the nasal microbiome indicated elevated levels of specific Staphylococcus aureus toxins, as well as nasal glial cell infection with human herpes virus (HHV)-6 in PwMS. Emerging research on lung microbiome in animal models demonstrated that manipulating the lung microbiome towards lipopolysaccharide-producing bacteria might suppress MS symptoms. These findings open avenues for potential therapeutic strategies. However, further research is crucial to fully understand the complex interactions between the microbiome and MS. This will help identify the most effective timing, bacterial strains, and modulation techniques.
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Affiliation(s)
- Melika Jameie
- Neuroscience Research Center, Iran University of Medical Sciences, Tehran, Iran; Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bahareh Ahli
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Ghadir
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Mobin Azami
- Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Mobina Amanollahi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Ebadi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Rafati
- School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Abdorreza Naser Moghadasi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
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31
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Kyaw TS, Patel HV, Jones C, Ha CWY, Khan AR, Hampson LA, Breyer BN, Shaw NM. Urinary and Oral Microbiota Among Men Undergoing Buccal Urethroplasty. Urology 2024; 190:142-147. [PMID: 38878829 DOI: 10.1016/j.urology.2024.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/27/2024] [Accepted: 06/04/2024] [Indexed: 07/02/2024]
Abstract
OBJECTIVE To assess changes in the urinary microbiota after buccal urethroplasty. METHODS At the University of California San Francisco, we enrolled 9 adult males with urethral strictures undergoing buccal urethroplasty where we collected urine and oral swabs intraoperatively and 3 months postoperatively. 16S rRNA sequencing was used to profile the microbiota. RESULTS At baseline, the mouth contains twice the number of unique bacteria (alpha diversity) and the microbial community is significantly distinct compared to the urinary tract. Despite having a buccal mucosa in the urinary tract after urethroplasty, the number of unique bacteria in the urine remained stable. However, the bacterial community composition and structure significantly changed in the urinary tract with the enrichment of Corynebacterium genus at 3 months post-urethroplasty procedure. CONCLUSION In this pilot study, we showed that the alpha diversity in the urinary microbiota did not significantly change despite having a buccal tissue with the capacity to support high bacterial diversity in the urinary tract. To our surprise, the post-urethroplasty urinary microbiota was not a hybrid of baseline oral and urine microbiotas; the changes detected, such as an enrichment of the Corynebacterium genus, were more nuanced yet could profoundly impact surgical outcomes like graft changes and stricture recurrence. Our study not only established the feasibility but also outlined a blueprint for conducting a large-scale study to assess alterations in the urinary microbiome in relation to surgical outcomes.
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Affiliation(s)
- Than S Kyaw
- Medical Scientist Training Program, University of California San Francisco, CA
| | - Hiren V Patel
- Department of Urology, University of California, San Francisco, CA
| | - Charles Jones
- Department of Urology, University of California, San Francisco, CA; Department of Urology, Washington University, Saint Louis, MO
| | - Connie W Y Ha
- Benioff Center for Microbiome Medicine, Division of Gastroenterology, Department of Medicine, University of California, San Francisco, CA
| | - Abdur Rahim Khan
- Benioff Center for Microbiome Medicine, Division of Gastroenterology, Department of Medicine, University of California, San Francisco, CA
| | - Lindsay A Hampson
- Department of Urology, University of California, San Francisco, CA; San Francisco Veterans Affairs Medical Center, San Francisco, CA
| | - Benjamin N Breyer
- Department of Urology, University of California, San Francisco, CA; Department of Epidemiology and Biostatistics, University of California, San Francisco
| | - Nathan M Shaw
- Department of Urology, University of California, San Francisco, CA; Department of Urology, MedStar Georgetown University Hospital, Washington DC; Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington DC.
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Zaidi SMH, Haider R, Kazmi SAB, Husnain A, Khan S, Merchant S, Tayyab H, Wazeen FR, Chaudhary AJ. Beyond Antibiotics: Novel Approaches in the Treatment of Recurrent Clostridioides difficile Infection. ACG Case Rep J 2024; 11:e01333. [PMID: 39081300 PMCID: PMC11286250 DOI: 10.14309/crj.0000000000001333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/06/2024] [Indexed: 08/02/2024] Open
Affiliation(s)
| | - Ramsha Haider
- Karachi Medical and Dental College, Karachi, Pakistan
| | | | - Ali Husnain
- Department of Medicine, King Edward Medical University, Lahore, Pakistan
| | - Saniah Khan
- Department of Medicine, King Edward Medical University, Lahore, Pakistan
| | | | - Hamnah Tayyab
- Department of Medicine, King Edward Medical University, Lahore, Pakistan
| | - Fazl Rahim Wazeen
- Department of Medicine, Greater Baltimore Medical Center, Towson, MD
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Peiffer AL, Dugan AE, Kiessling LL. Soluble Human Lectins at the Host-Microbe Interface. Annu Rev Biochem 2024; 93:565-601. [PMID: 38640018 PMCID: PMC11296910 DOI: 10.1146/annurev-biochem-062917-012322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
Human lectins are integral to maintaining microbial homeostasis on the skin, in the blood, and at mucosal barriers. These proteins can recognize microbial glycans and inform the host about its microbial status. In accordance with their roles, their production can vary with tissue type. They also can have unique structural and biochemical properties, and they can influence microbial colonization at sites proximal and distal to their tissue of origin. In line with their classification as innate immune proteins, soluble lectins have long been studied in the context of acute infectious disease, but only recently have we begun to appreciate their roles in maintaining commensal microbial communities (i.e., the human microbiota). This review provides an overview of soluble lectins that operate at host-microbe interfaces, their glycan recognition properties, and their roles in physiological and pathological mechanisms.
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Affiliation(s)
- Amanda L Peiffer
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA;
| | - A E Dugan
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA;
| | - L L Kiessling
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA;
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Wang S, Tan X, Cheng J, Liu Z, Zhou H, Liao J, Wang X, Liu H. Oral microbiome and its relationship with oral cancer. J Cancer Res Ther 2024; 20:1141-1149. [PMID: 39206975 DOI: 10.4103/jcrt.jcrt_44_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 07/01/2024] [Indexed: 09/04/2024]
Abstract
ABSTRACT As the initial point for digestion, the balance of oral microorganisms plays an important role in maintaining local and systemic health. Oral dysbiosis, or an imbalance in the oral microbial community, may lead to the onset of various diseases. The presence or abnormal increase of microbes in the oral cavity has attracted significant attention due to its complicated relationship with oral cancer. Oral cancer can remodel microbial profiles by creating a more beneficial microenvironment for its progression. On the other hand, altered microbial profiles can promote tumorigenesis by evoking a complex inflammatory response and affecting host immunity. This review analyzes the oncogenic potential of oral microbiome alterations as a driver and biomarker. Additionally, a potentially therapeutic strategy via the reversal of the oral microbiome dysbiosis in oral cancers has been discussed.
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Affiliation(s)
- Shengran Wang
- School of Stomatology and Ophthalmology, Xianning Medical College, Hubei University of Science and Technology, Xianning Hubei, China
| | - Xiao Tan
- School of Clinical Medicine, Xianning Medical College, Hubei University of Science and Technology, Xianning Hubei, China
| | - Juan Cheng
- School of Clinical Medicine, Xianning Medical College, Hubei University of Science and Technology, Xianning Hubei, China
| | - Zeyang Liu
- School of Clinical Medicine, Xianning Medical College, Hubei University of Science and Technology, Xianning Hubei, China
| | - Huiping Zhou
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning Hubei, China
| | - Jiyuan Liao
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning Hubei, China
| | - Xijun Wang
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning Hubei, China
| | - Hongyun Liu
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning Hubei, China
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Albu ŞD, Suciu I, Albu CC, Dragomirescu AO, Ionescu E. Impact of Malocclusions on Periodontopathogenic Bacterial Load and Progression of Periodontal Disease: A Quantitative Analysis. Microorganisms 2024; 12:1553. [PMID: 39203395 PMCID: PMC11356265 DOI: 10.3390/microorganisms12081553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Revised: 07/23/2024] [Accepted: 07/25/2024] [Indexed: 09/03/2024] Open
Abstract
BACKGROUND (1) Periodontal disease (PD) is a globally prevalent chronic inflammatory condition, exacerbated by the dysbiosis of the oral microbiota. This study aims to evaluate the bacterial load of specific periodontopathogenic bacteria in patients with malocclusions (MAL) compared to those without. (2) Methods: Conducted at the "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania, this pilot study involved two groups: patients with MAL and PD, and patients with PD but without MAL. We included 20 patients: 10 with MAL (9 with crowding and 1 with an open bite) and 10 without MAL. Gingival crevicular fluid was collected for bacterial DNA extraction and quantified bacterial load using real-time PCR, focusing on 12 periodontopathogenic bacteria across different complexity classes. (3) Results: The study identified significantly higher concentrations of Treponema denticola (p = 0.023, median = 4.32, IQR = 2.76-5.53 vs. median = 1.93, IQR = 0-3.19), Tannerella forsythia (p = 0.020, mean = 6.04 ± 0.72 vs. mean = 4.4 ± 1.89) and Porphyromonas gingivalis (p = 0.002, median = 5.64, IQR = 4.94-5.98 vs. median = 2.48, IQR = 0-4.05) in patients with MAL compared to those without. This suggests that MAL contributes to an environment conducive to the proliferation of specific pathogens, potentially accelerating PD progression. Additionally, Eikenella corrodens (p = 0.040, mean = 4.55 ± 1.02 vs. mean = 3.23 ± 1.56), Campylobacter rectus (p < 0.001, mean = 4.2 ± 0.56 vs. mean = 1.8 ± 1.51), Prevotella intermedia (p = 0.043, median = 5.04, IQR = 0-5.49 vs. median = 0, IQR = 0-3.39), Capnocytophaga sputigena (p = 0.011, median = 5.91, IQR = 5.47-6.17 vs. median = 4.63, IQR = 3.83-5.64), and Capnocytophaga gingivalis (p = 0.007, median = 5.87, IQR = 5.34-6.03 vs. median = 4.4, IQR = 3.5-5.71) also showed elevated concentrations, indicating the broad impacts of MAL on oral microbial profiles. (4) Conclusions: The findings demonstrate a significant relationship between MAL and increased bacterial loads, underscoring the need for its integration in managing PD. Future research should expand demographic diversity and employ longitudinal designs to better understand the causative mechanisms at play.
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Affiliation(s)
- Ştefan-Dimitrie Albu
- Department of Periodontology, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu Street, 020021 Bucharest, Romania;
| | - Ioana Suciu
- Department of Endodontics, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu Street, 020021 Bucharest, Romania;
| | - Cristina-Crenguţa Albu
- Department of Genetics, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu Street, 020021 Bucharest, Romania
| | - Anca-Oana Dragomirescu
- Department of Orthodontics and Dentofacial Orthopaedics, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu Street, 020021 Bucharest, Romania; (A.-O.D.); (E.I.)
| | - Ecaterina Ionescu
- Department of Orthodontics and Dentofacial Orthopaedics, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu Street, 020021 Bucharest, Romania; (A.-O.D.); (E.I.)
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Wadop YN, Vasquez EL, Mathews JJ, Muhammad JAS, Mavarez RP, Satizabal C, Gonzales MM, Tanner J, Maestre G, Fonteh AN, Seshadri S, Kautz TF, Fongang B. Differential Patterns of Gut and Oral Microbiomes in Hispanic Individuals with Cognitive Impairment. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.27.605455. [PMID: 39211240 PMCID: PMC11361189 DOI: 10.1101/2024.07.27.605455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Alzheimer's disease and related dementias (ADRD) have been associated with alterations in both oral and gut microbiomes. While extensive research has focused on the role of gut dysbiosis in ADRD, the contribution of the oral microbiome remains relatively understudied. Furthermore, the potential synergistic interactions between oral and gut microbiomes in ADRD pathology are largely unexplored. This study aims to evaluate distinct patterns and potential synergistic effects of oral and gut microbiomes in a cohort of predominantly Hispanic individuals with cognitive impairment (CI) and without cognitive impairment (NC). We conducted 16S rRNA gene sequencing on stool and saliva samples from 32 participants (17 CI, 15 NC; 62.5% female, mean age = 70.4 ± 6.2 years) recruited in San Antonio, Texas, USA. Correlation analysis through MaAslin2 assessed the relationship between participants' clinical measurements (e.g., fasting glucose and blood cholesterol) and their gut and saliva microbial contents. Differential abundance analysis evaluated taxa with significant differences between CI and NC groups, and alpha and beta diversity metrics assessed within-sample and group compositional differences. Our analyses revealed no significant differences between NC and CI groups in fasting glucose or blood cholesterol levels. However, a clear association was observed between gut microbiome composition and levels of fasting glucose and blood cholesterol. While alpha and beta diversity metrics showed no significant differences between CI and NC groups, differential abundance analysis revealed an increased presence of oral genera such as Dialister , Fretibacterium , and Mycoplasma in CI participants. Conversely, CI individuals exhibited a decreased abundance of gut genera, including Shuttleworthia , Holdemania , and Subdoligranulum , which are known for their anti-inflammatory properties. No evidence was found for synergistic contributions between oral and gut microbiomes in the context of ADRD. Our findings suggest that similar to the gut microbiome, the oral microbiome undergoes significant modifications as individuals transition from NC to CI. Notably, the identified oral microbes have been previously associated with periodontal diseases and gingivitis. These results underscore the necessity for further investigations with larger sample sizes to validate our findings and elucidate the complex interplay between oral and gut microbiomes in ADRD pathogenesis.
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Munteanu C, Schwartz B. Interactions between Dietary Antioxidants, Dietary Fiber and the Gut Microbiome: Their Putative Role in Inflammation and Cancer. Int J Mol Sci 2024; 25:8250. [PMID: 39125822 PMCID: PMC11311432 DOI: 10.3390/ijms25158250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 07/19/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
The intricate relationship between the gastrointestinal (GI) microbiome and the progression of chronic non-communicable diseases underscores the significance of developing strategies to modulate the GI microbiota for promoting human health. The administration of probiotics and prebiotics represents a good strategy that enhances the population of beneficial bacteria in the intestinal lumen post-consumption, which has a positive impact on human health. In addition, dietary fibers serve as a significant energy source for bacteria inhabiting the cecum and colon. Research articles and reviews sourced from various global databases were systematically analyzed using specific phrases and keywords to investigate these relationships. There is a clear association between dietary fiber intake and improved colon function, gut motility, and reduced colorectal cancer (CRC) risk. Moreover, the state of health is reflected in the reciprocal and bidirectional relationships among food, dietary antioxidants, inflammation, and body composition. They are known for their antioxidant properties and their ability to inhibit angiogenesis, metastasis, and cell proliferation. Additionally, they promote cell survival, modulate immune and inflammatory responses, and inactivate pro-carcinogens. These actions collectively contribute to their role in cancer prevention. In different investigations, antioxidant supplements containing vitamins have been shown to lower the risk of specific cancer types. In contrast, some evidence suggests that taking antioxidant supplements can increase the risk of developing cancer. Ultimately, collaborative efforts among immunologists, clinicians, nutritionists, and dietitians are imperative for designing well-structured nutritional trials to corroborate the clinical efficacy of dietary therapy in managing inflammation and preventing carcinogenesis. This review seeks to explore the interrelationships among dietary antioxidants, dietary fiber, and the gut microbiome, with a particular focus on their potential implications in inflammation and cancer.
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Affiliation(s)
- Camelia Munteanu
- Department of Plant Culture, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Betty Schwartz
- The Institute of Biochemistry, Food Science and Nutrition, The School of Nutritional Sciences, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel
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Abdelrahman SM, El Samak M, El-Baz LMF, Hanora AMS, Satyal P, Dosoky NS. Effects of Mint Oils on the Human Oral Microbiome: A Pilot Study. Microorganisms 2024; 12:1538. [PMID: 39203382 PMCID: PMC11356387 DOI: 10.3390/microorganisms12081538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 07/17/2024] [Accepted: 07/24/2024] [Indexed: 09/03/2024] Open
Abstract
The oral microbiome is a diverse and complex ecosystem essential for maintaining oral and systemic health. Our study is the first to define the oral microbial community in Egyptian young adults and investigate the effects of natural antimicrobials on the oral microbiome. SuperMint (SM) is a proprietary blend of peppermint, Japanese mint, bergamot mint, and spearmint essential oils encapsulated in a tiny soft beadlet. This work aimed to evaluate the effects of SM beadlets on the oral microbiome. This study recruited twenty healthy participants. A baseline investigation of the oral microbiome of the selected participants was performed by collecting saliva and swab samples before treatment. Treatment included chewing four SM beadlets twice a day for 7 days, and then, post-administration saliva and swab samples were collected at the end of treatment. The oral microbiome samples were analyzed by the high-throughput amplicon sequencing of 16S rRNA gene fragments, and the community composition was determined. The results showed that the abundance of some microbial genera and families decreased after using SM, including Prevotella, Streptococcus, Neisseria, and Haemophilus. However, some genera showed inconsistent patterns. We also found that the subject's gender and SM usage were significantly associated with diverse microbial composition. The results suggest that SM treatment decreased the abundance of several bacteria associated with halitosis and periodontal diseases, such as Actinomyces and Streptococcus. Furthermore, Corynebacterium species increased and Streptococcus decreased after SM usage. More research is needed to fully understand the antimicrobial effects of mint oils and their potential applications in maintaining good oral health.
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Affiliation(s)
- Samar M. Abdelrahman
- Department of Botany and Microbiology, Faculty of Science, Suez University, Suez 43518, Egypt
| | - Manar El Samak
- Department of Microbiology & Immunology, College of Pharmacy, Suez Canal University, Ismailia 43221, Egypt; (M.E.S.); (A.M.S.H.)
| | - Lamis M. F. El-Baz
- Department of Zoology, Faculty of Science, Suez University, Suez 43533, Egypt;
| | - Amro M. S. Hanora
- Department of Microbiology & Immunology, College of Pharmacy, Suez Canal University, Ismailia 43221, Egypt; (M.E.S.); (A.M.S.H.)
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Ribeiro RF, da Mata VB, Tomaselli LDO, Simionato AA, Santos EDS, Faria ACL, Rodrigues RCS, do Nascimento C. Microbial Leakage through Three Different Implant-Abutment Interfaces on Morse Taper Implants In Vitro. Dent J (Basel) 2024; 12:226. [PMID: 39057013 PMCID: PMC11275855 DOI: 10.3390/dj12070226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/20/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
The objective of this study was to evaluate microbial leakage by means of genome counts, through the implant-abutment interface in dental implants with different Morse taper abutments. Fifty-six samples were prepared and divided in four groups: CMC TB (14 Cylindrical Implants-14 TiBase Abutments), CMX TB (14 Conical Implants-14 TiBase Abutments), CMX PU (14 Conical Implants-14 Universal Abutment) and CMX U (14 Tapered Implants-14 UCLA Abutments). Assemblies had their interface submerged in saliva as the contaminant. Samples were subjected either to thermomechanical cycling (2 × 106 mechanical cycles with frequency of 5 Hz and load of 120 N simultaneously with thermal cycles of 5-55 °C) or thermal cycling (5-55 °C). After cycling, the contents from the inner parts of assemblies were collected and analyzed using the Checkerboard DNA-DNA hybridization technique. Significant differences in the total genome counts were found after both thermomechanical or thermal cycling: CMX U > CMX PU > CMX TB > CMC TB. There were also significant differences in individual bacterial counts in each of the groups (p < 0.05). Irrespective of mechanical cycling, the type of abutment seems to influence not only the total microbial leakage through the interface, but also seems to significantly reflect differences considering individual target species.
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Affiliation(s)
- Ricardo Faria Ribeiro
- Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto, University of São Paulo, Ribeirão Preto 14040-904, Brazil; (V.B.d.M.); (L.d.O.T.); (A.A.S.); (A.C.L.F.); (R.C.S.R.)
| | - Victor Barboza da Mata
- Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto, University of São Paulo, Ribeirão Preto 14040-904, Brazil; (V.B.d.M.); (L.d.O.T.); (A.A.S.); (A.C.L.F.); (R.C.S.R.)
| | - Lucas de Oliveira Tomaselli
- Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto, University of São Paulo, Ribeirão Preto 14040-904, Brazil; (V.B.d.M.); (L.d.O.T.); (A.A.S.); (A.C.L.F.); (R.C.S.R.)
| | - Anselmo Agostinho Simionato
- Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto, University of São Paulo, Ribeirão Preto 14040-904, Brazil; (V.B.d.M.); (L.d.O.T.); (A.A.S.); (A.C.L.F.); (R.C.S.R.)
| | - Emerson de Souza Santos
- Department of Clinical Analysis, Toxicology, and Food Science, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto 14040-903, Brazil;
| | - Adriana Cláudia Lapria Faria
- Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto, University of São Paulo, Ribeirão Preto 14040-904, Brazil; (V.B.d.M.); (L.d.O.T.); (A.A.S.); (A.C.L.F.); (R.C.S.R.)
| | - Renata Cristina Silveira Rodrigues
- Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto, University of São Paulo, Ribeirão Preto 14040-904, Brazil; (V.B.d.M.); (L.d.O.T.); (A.A.S.); (A.C.L.F.); (R.C.S.R.)
| | - Cássio do Nascimento
- Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto, University of São Paulo, Ribeirão Preto 14040-904, Brazil; (V.B.d.M.); (L.d.O.T.); (A.A.S.); (A.C.L.F.); (R.C.S.R.)
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Kislik G, Zhou L, Rubbi L, Pellegrini M. Age-correlated changes in the canine oral microbiome. Front Microbiol 2024; 15:1426691. [PMID: 39081893 PMCID: PMC11287893 DOI: 10.3389/fmicb.2024.1426691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 07/02/2024] [Indexed: 08/02/2024] Open
Abstract
Introduction Canine oral disease has been associated with significant changes in the oral microbiome rather than the presence or absence of individual species. In addition, most studies focus on a single age group of canines and as of yet, the relationship between canine microbiomes and age is poorly understood. Methods This study used a shotgun whole gene sequencing approach in tandem with the Aladdin Bioinformatics platform to profile the microbiomes of 96 companion dogs, with the sourmash-zymo reference database being used to perform taxonomic profiling. Results Findings showed significant age correlations among 19 species, including positive correlations among several Porphyromonas species and a negative correlation with C. steedae. Although a significant correlation was found between predicted and actual ages, ElasticNet Regression was unable to successfully predict the ages of younger canines based on their microbiome composition. Both microbiome samples and microbial species were successfully clustered by age group or age correlation, showing that the age-microbiome relationship survives dimensionality reduction. Three distinct clusters of microbial species were found, which were characterized by Porphyromonas, Conchiformibius, and Prevotella genera, respectively. Discussion Findings showed that the microbiomes of older dogs resembled those that previous literature attributed to dogs with periodontal disease. This suggests that the process of aging may introduce greater risks for canine oral disease.
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Affiliation(s)
- Gregory Kislik
- Molecular Cell and Developmental Biology, University of California, Los Angeles (UCLA), Los Angeles, CA, United States
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Farhad SZ, Karbalaeihasanesfahani A, Dadgar E, Nasiri K, Esfahaniani M, Nabi Afjadi M. The role of periodontitis in cancer development, with a focus on oral cancers. Mol Biol Rep 2024; 51:814. [PMID: 39008163 DOI: 10.1007/s11033-024-09737-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 06/18/2024] [Indexed: 07/16/2024]
Abstract
Periodontitis is a severe gum infection that begins as gingivitis and can lead to gum recession, bone loss, and tooth loss if left untreated. It is primarily caused by bacterial infection, which triggers inflammation and the formation of periodontal pockets. Notably, periodontitis is associated with systemic health issues and has been linked to heart disease, diabetes, respiratory diseases, adverse pregnancy outcomes, and cancers. Accordingly, the presence of chronic inflammation and immune system dysregulation in individuals with periodontitis significantly contributes to the initiation and progression of various cancers, particularly oral cancers. These processes promote genetic mutations, impair DNA repair mechanisms, and create a tumor-supportive environment. Moreover, the bacteria associated with periodontitis produce harmful byproducts and toxins that directly damage the DNA within oral cells, exacerbating cancer development. In addition, chronic inflammation not only stimulates cell proliferation but also inhibits apoptosis, causes DNA damage, and triggers the release of pro-inflammatory cytokines. Collectively, these factors play a crucial role in the progression of cancer in individuals affected by periodontitis. Further, specific viral and bacterial agents, such as hepatitis B and C viruses, human papillomavirus (HPV), Helicobacter pylori (H. pylori), and Porphyromonas gingivalis, contribute to cancer development through distinct mechanisms. Bacterial infections have systemic implications for cancer development, while viral infections provoke immune and inflammatory responses that can lead to genetic mutations. This review will elucidate the link between periodontitis and cancers, particularly oral cancers, exploring their underlying mechanisms to provide insights for future research and treatment advancements.
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Affiliation(s)
- Shirin Zahra Farhad
- Department of Periodontics, Faculty of Dentistry, Isfahan(Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | | | - Esmaeel Dadgar
- Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kamyar Nasiri
- Faculty of Dentistry, Islamic Azad University of Medical Sciences, Tehran, Iran
| | - Mahla Esfahaniani
- Faculty of Dentistry, Golestan University of Medical Sciences, Gorgan, Iran.
| | - Mohsen Nabi Afjadi
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
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Chen Y, Li C, Wang X, Zhang CL, Ren ZG, Wang ZQ. Oral microbiota distinguishes patients with osteosarcoma from healthy controls. Front Cell Infect Microbiol 2024; 14:1383878. [PMID: 39055977 PMCID: PMC11269967 DOI: 10.3389/fcimb.2024.1383878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 06/17/2024] [Indexed: 07/28/2024] Open
Abstract
Objective The human microbiota plays a key role in cancer diagnosis, pathogenesis, and treatment. However, osteosarcoma-associated oral microbiota alterations have not yet been unraveled. The aim of this study was to explore the characteristics of oral microbiota in osteosarcoma patients compared to healthy controls, and to identify potential microbiota as a diagnostic tool for osteosarcoma. Methods The oral microbiota was analyzed in osteosarcoma patients (n = 45) and matched healthy controls (n = 90) using 16S rRNA MiSeq sequencing technology. Results The microbial richness and diversity of the tongue coat were increased in osteosarcoma patients as estimated by the abundance-based coverage estimator indices, the Chao, and observed operational taxonomy units (OTUs). Principal component analysis delineated that the oral microbial community was significant differences between osteosarcoma patients and healthy controls. 14 genera including Rothia, Halomonas, Rhodococcus, and Granulicatella were remarkably reduced, whereas Alloprevotella, Prevotella, Selenomonas, and Campylobacter were enriched in osteosarcoma. Eventually, the optimal four OTUs were identified to construct a microbial classifier by the random forest model via a fivefold cross-validation, which achieved an area under the curve of 99.44% in the training group (30 osteosarcoma patients versus 60 healthy controls) and 87.33% in the test group (15 osteosarcoma patients versus 30 healthy controls), respectively. Notably, oral microbial markers validated strong diagnostic potential distinguishing osteosarcoma patients from healthy controls. Conclusion This study comprehensively characterizes the oral microbiota in osteosarcoma and reveals the potential efficacy of oral microbiota-targeted biomarkers as a noninvasive biological diagnostic tool for osteosarcoma.
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Affiliation(s)
- Yu Chen
- Department of Pathogen Biology, Medical College, Zhengzhou University, Zhengzhou, China
| | - Chao Li
- Department of Orthopaedic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Xin Wang
- Department of Orthopaedic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Chun Lei Zhang
- Department of Orthopaedic Surgery, Henan Provincial Chest Hospital, Zhengzhou University, Zhengzhou, China
| | - Zhi Gang Ren
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhong Quan Wang
- Department of Pathogen Biology, Medical College, Zhengzhou University, Zhengzhou, China
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B N, Narayanarao G, T R S, B RS, Chandrasekaran D, Rakeeba F. Oral Commensals in Healthy Individuals: A Clinicocytological Study. Cureus 2024; 16:e65317. [PMID: 39184602 PMCID: PMC11344192 DOI: 10.7759/cureus.65317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2024] [Indexed: 08/27/2024] Open
Abstract
Background Each human being has a specific group of microorganisms that are necessary for both sustaining health and causing illness. Normally, these microorganisms maintain bio-communalism, do not harm the host, and lead to a state known as symbiosis or eubiosis. The commensal nature of these bacteria is always maintained in symbiosis and attains pathogenic potential when there is an imbalance between host immunity and microorganisms. Our study focuses on the identification and differentiation of the various commensals present in the oral cavity of healthy individuals over a given period of time. Aims and objectives This study aims to: (i) identify various commensal bacterial species present in the oral cavity; (ii) differentiate each commensal bacterial species present in the oral cavity of healthy individuals using cytological and culturing methods; (iii) identify the presence of different types of commensal bacterial species in the same individuals with the specific time intervals; (iv) compare and correlate the presence or absence of bacterial species present as a commensal in both male and female; (v) identify and characterize the commensal bacterial species present in the oral cavity of healthy individuals; (vi) investigate the consistency of commensal bacterial species presence over time and between genders. Methodology We included sixty healthy individuals between the ages of 20 and 24 from both genders, took buccal smears once every two days for ten days, stained them with Gram stain, and grew them in blood agar and Mac Conkey agar. Results The most common commensals include Gram-positive cocci, and among them, Coagulase-negative staphylococcus species (85%) are predominant, followed by Staphylococcus aureus (13.33%), and Streptococcus species (1.67%). The presence of colonies remains the same in all three samples obtained from the same healthy individuals. Conclusion Loss of balance between commensals and pathogens can lead to dysbiosis, which results in disease.
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Affiliation(s)
- Nandhinipriya B
- Oral and Maxillofacial Pathology, CSI College of Dental Science and Research, Madurai, IND
| | - Gururaj Narayanarao
- Oral and Maxillofacial Pathology, CSI College of Dental Sciences and Research, Madurai, IND
| | - Sabarinath T R
- Oral and Maxillofacial Pathology, CSI College of Dental Science and Research, Madurai, IND
| | - Rethika Singh B
- Oral and Maxillofacial Pathology, CSI College of Dental Sciences and Research, Madurai, IND
| | | | - Fadhila Rakeeba
- Oral and Maxillofacial Pathology, CSI College of Dental Sciences and Research, Madurai, IND
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Vegda HS, Patel B, Girdhar GA, Pathan MSH, Ahmad R, Haque M, Sinha S, Kumar S. Role of Nonalcoholic Fatty Liver Disease in Periodontitis: A Bidirectional Relationship. Cureus 2024; 16:e63775. [PMID: 39100036 PMCID: PMC11297857 DOI: 10.7759/cureus.63775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 07/03/2024] [Indexed: 08/06/2024] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) and periodontitis share common risk factors such as obesity, insulin resistance (IR), and dyslipidemia, which contribute to systemic inflammation. It has been suggested that a bidirectional relationship exists between NAFLD and periodontitis, indicating that one condition may exacerbate the other. NAFLD is characterized by excessive fat deposition in the liver and is associated with low-grade chronic inflammation. There are several risk factors for the development of NAFLD, including gender, geriatric community, race, ethnicity, poor sleep quality and sleep deprivation, physical activity, nutritional status, dysbiosis gut microbiota, increased oxidative stress, overweight, obesity, higher body mass index (BMI), IR, type 2 diabetes mellitus (T2DM), metabolic syndrome (MetS), dyslipidemia (hypercholesterolemia), and sarcopenia (decreased skeletal muscle mass). This systemic inflammation can contribute to the progression of periodontitis by impairing immune responses and exacerbating the inflammatory processes in the periodontal tissues. Furthermore, individuals with NAFLD often exhibit altered lipid metabolism, which may affect oral microbiota composition, leading to dysbiosis and increased susceptibility to periodontal disease. Conversely, periodontitis has been linked to the progression of NAFLD through mechanisms involving systemic inflammation and oxidative stress. Chronic periodontal inflammation can release pro-inflammatory cytokines and bacterial toxins into the bloodstream, contributing to liver inflammation and exacerbating hepatic steatosis. Moreover, periodontitis-induced oxidative stress may promote hepatic lipid accumulation and IR, further aggravating NAFLD. The interplay between NAFLD and periodontitis underscores the importance of comprehensive management strategies targeting both conditions. Lifestyle modifications such as regular exercise, a healthy diet, and proper oral hygiene practices are crucial for preventing and managing these interconnected diseases. Additionally, interdisciplinary collaboration between hepatologists and periodontists is essential for optimizing patient care and improving outcomes in individuals with NAFLD and periodontitis.
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Affiliation(s)
- Hardika S Vegda
- Department of Periodontology and Implantology, School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Bhavin Patel
- Department of Periodontology and Implantology, School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Gaurav A Girdhar
- Department of Periodontology and Implantology, School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Mohd Shabankhan H Pathan
- Department of Periodontology and Implantology, School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Rahnuma Ahmad
- Department of Physiology, Medical College for Women and Hospital, Dhaka, BGD
| | - Mainul Haque
- Department of Research, Karnavati Scientific Research Center (KSRC) School of Dentistry, Karnavati University, Gandhinagar, IND
- Department of Pharmacology and Therapeutics, National Defence University of Malaysia, Kuala Lumpur, MYS
| | - Susmita Sinha
- Department of Physiology, Enam Medical College and Hospital, Dhaka, BGD
| | - Santosh Kumar
- Department of Periodontology and Implantology, School of Dentistry, Karnavati University, Gandhinagar, IND
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Ganesh PS. 4-hydroxy-3-methoxybenzaldehyde causes attrition of biofilm formation and quorum sensing-associated virulence factors of Streptococcus mutans. Arch Oral Biol 2024; 163:105976. [PMID: 38640776 DOI: 10.1016/j.archoralbio.2024.105976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 04/11/2024] [Accepted: 04/14/2024] [Indexed: 04/21/2024]
Abstract
OBJECTIVE The present study investigated the effects of 4-hydroxy-3-methoxybenzaldehyde (4-H-3-MB) against Streptococcus mutans (S. mutans) using an in vitro cariogenic biofilm model. DESIGN The antimicrobial susceptibility of biofilm-forming S. mutans was evaluated by disc diffusion method. In vitro investigations were performed using crystal violet staining assay (biofilm assay), exopolysaccharide (EPS) assay, acid production, growth curve analysis, optical microscopic, and FE-SEM analyses to determine the antibiofilm activity of 4-H-3-MB. RESULTS S. mutans (SDC-05) was resistant to ampicillin, piperacillin/tazobactam and ceftriaxone, whereas the other strains of S. mutans (SDC-01, 02, 03 and SDC-04) were sensitive to all the antibiotics tested. 4-H-3-MB showed promising antibiofilm activity on S. mutans UA159 (79.81 %, 67.76 % and 56.31 %) and S. mutans SDC-05 (77.00 %, 59.48 % and 48.22 %) at the lowest concentration of 0.2, 0.1, 0.05 mg/ml. 4-H-3-MB did not inhibit bacterial growth even at concentrations 0.2 mg/ml. Similarly, 4-H-3-MB led to significant attrition in exopolysaccharide (EPS) and acid production by S. mutans UA159 and S. mutans (SDC-05) at the concentration of 0.2, 0.1 mg/ml, respectively. Optical microscopy and FE-SEM analysis 4-H-3-MB reduced the biofilm thickness of S. mutans UA159 and S. mutans SDC-05 relative to the untreated specimens. CONCLUSION 4-H-3-MB significantly inhibited biofilm formation by S. mutans in a dose-dependent manner. Hence, our findings indicate that the active principle of 4-H-3-MB could be used as a biofilm inhibiting agent against S. mutans.
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Affiliation(s)
- Pitchaipillai Sankar Ganesh
- Department of Microbiology, Centre for Infectious Diseases, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University (Deemed to be University), Chennai 600 077, Tamilnadu, India.
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Stankevic E, Kern T, Borisevich D, Poulsen CS, Madsen AL, Hansen TH, Jonsson A, Schubert M, Nygaard N, Nielsen T, Belstrøm D, Ahluwalia TS, Witte DR, Grarup N, Arumugam M, Pedersen O, Hansen T. Genome-wide association study identifies host genetic variants influencing oral microbiota diversity and metabolic health. Sci Rep 2024; 14:14738. [PMID: 38926497 PMCID: PMC11208528 DOI: 10.1038/s41598-024-65538-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 06/20/2024] [Indexed: 06/28/2024] Open
Abstract
The microbial communities of the oral cavity are important elements of oral and systemic health. With emerging evidence highlighting the heritability of oral bacterial microbiota, this study aimed to identify host genome variants that influence oral microbial traits. Using data from 16S rRNA gene amplicon sequencing, we performed genome-wide association studies with univariate and multivariate traits of the salivary microbiota from 610 unrelated adults from the Danish ADDITION-PRO cohort. We identified six single nucleotide polymorphisms (SNPs) in human genomes that showed associations with abundance of bacterial taxa at different taxonomical tiers (P < 5 × 10-8). Notably, SNP rs17793860 surpassed our study-wide significance threshold (P < 1.19 × 10-9). Additionally, rs4530093 was linked to bacterial beta diversity (P < 5 × 10-8). Out of these seven SNPs identified, six exerted effects on metabolic traits, including glycated hemoglobin A1c, triglyceride and high-density lipoprotein cholesterol levels, the risk of type 2 diabetes and stroke. Our findings highlight the impact of specific host SNPs on the composition and diversity of the oral bacterial community. Importantly, our results indicate an intricate interplay between host genetics, the oral microbiota, and metabolic health. We emphasize the need for integrative approaches considering genetic, microbial, and metabolic factors.
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Affiliation(s)
- Evelina Stankevic
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Timo Kern
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Dmitrii Borisevich
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Casper Sahl Poulsen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anne Lundager Madsen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Tue Haldor Hansen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Medical Department, Zealand University Hospital, Koege, Denmark
| | - Anna Jonsson
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel Schubert
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Nikoline Nygaard
- Department of Odontology, Section for Clinical Oral Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Trine Nielsen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Medical Department, Zealand University Hospital, Koege, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Daniel Belstrøm
- Department of Odontology, Section for Clinical Oral Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Tarunveer S Ahluwalia
- Steno Diabetes Center Copenhagen, Herlev, Denmark
- The Bioinformatics Center, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Daniel R Witte
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Steno Diabetes Center Aarhus, Aarhus, Denmark
| | - Niels Grarup
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Manimozhiyan Arumugam
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Oluf Pedersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Center for Clinical Metabolic Research, Herlev-Gentofte University Hospital, Copenhagen, Denmark
| | - Torben Hansen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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Beattie RE. Probiotics for oral health: a critical evaluation of bacterial strains. Front Microbiol 2024; 15:1430810. [PMID: 38979537 PMCID: PMC11228166 DOI: 10.3389/fmicb.2024.1430810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 06/11/2024] [Indexed: 07/10/2024] Open
Abstract
Oral health is critical for total body health and well-being; however, little improvement in oral health status has occurred in the U.S. over the past 20 years. Tooth decay and gum disease remain highly prevalent, with more than 90% and 50% of adults suffering from these conditions, respectively. To combat this lack of improvement, alternative approaches to dental care are now being suggested. One such alternative therapy is probiotics for oral care. In the oral cavity, probiotic strains have been shown to reduce levels of oral pathogens, inhibit the formation of dental caries, and reduce the levels of bacteria that cause halitosis. However, as the oral care probiotic market expands, many products contain bacterial species and strains with no documented health benefits leading to confusion and mistrust among consumers and clinicians. This confusion is enhanced by the regulatory status of probiotic products which puts the onus of safety and efficacy on the manufacturer rather than a central regulatory body. The overarching goal of this review is to provide consumers and clinicians with documented evidence supporting (or refuting) the health benefits of oral care probiotics marketed for sale in the United States. This includes defining what constitutes an oral care probiotic product and a strain level analysis of candidate probiotics from the genera Streptococcus, Lactobacillus, Bifidobacterium, and Bacillus. Additionally, prebiotics and postbiotics will be discussed. Finally, a set of considerations for consumers and clinicians is provided to empower probiotic product decision making. Together, this review will improve understanding of oral care probiotics marketed in the US for dental professionals and consumers.
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Stam AJ, Groenewegen H, Vissink A, Wensing AMJ, Nijhuis M, Bierman WFW. Periodontal inflammation as a potential driver of HIV low level viremia. PLoS One 2024; 19:e0305641. [PMID: 38885222 PMCID: PMC11182545 DOI: 10.1371/journal.pone.0305641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 06/02/2024] [Indexed: 06/20/2024] Open
Abstract
HIV can be successfully suppressed to undetectable levels by antiretroviral therapy (ART) in most people with HIV (PWH). However, a small proportion continues to have persistent low-level viremia (LLV) during ART. A presumed source of LLV is production or replication from viral reservoirs, which are maintained in the presence of ART. It is unknown whether the oral cavity can be considered an HIV reservoir. As periodontal inflammation is a common problem in PWH, we hypothesize that periodontal inflammation in the oral cavity activates (latently) infected cells and thus might be associated with LLV. We included 11 individuals with HIV LLV, and compared HIV-RNA levels in saliva and plasma at baseline and at week 24 after switch of ART. We compared the LLV-group at baseline with 11 age-matched controls with suppressed viremia. To investigate the severity of periodontitis we used Periodontal Inflamed Surface Areas (PISA) by measuring probing depth, gingival recession, bleeding on probing and clinical attachment level. Severity of periodontitis was classified according to the CDC-AAP case definition. Additional insights in periodontal inflammation were obtained by comparing immune activation markers and the presence of periodontal pathogens. In four individuals of the LLV group, residual levels of HIV-RNA were detected in saliva at baseline (N = 1) or at week 24 (N = 2) or both (N = 1). Of the four individuals with LLV, three had residual levels of HIV-RNA in saliva. All 22 individuals had moderate to severe periodontitis. PISA was not significantly different between cases with LLV and controls. Similarly, periodontal pathogens were frequently observed in both groups. Total activated HLA-DR+CD38+ CD4+ cells and CD8+ cells were significantly higher in the LLV group than in the control group (p = <0.01). No immune markers were associated with LLV. In conclusion, periodontal inflammation is an unlikely driver of HIV LLV compared to HIV suppressed individuals.
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Affiliation(s)
- Arjen J. Stam
- Department of Medical Microbiology, Translational Virology, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Infectious Diseases, Public Health Service Amsterdam, Amsterdam, The Netherlands
| | - Hester Groenewegen
- Department of Oral and Maxillofacial Surgery, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands
| | - Arjan Vissink
- Department of Oral and Maxillofacial Surgery, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands
| | - Annemarie M. J. Wensing
- Department of Medical Microbiology, Translational Virology, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Health, Ezintsha, University of the Witwatersrand, Johannesburg, South Africa
| | - Monique Nijhuis
- Department of Medical Microbiology, Translational Virology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Wouter F. W. Bierman
- Department of Internal Medicine, Division of Infectious Diseases, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands
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49
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van Dijk MC, Petersen JF, Raber-Durlacher JE, Epstein JB, Laheij AMGA. Diversity and compositional differences in the oral microbiome of oral squamous cell carcinoma patients and healthy controls: a scoping review. FRONTIERS IN ORAL HEALTH 2024; 5:1366153. [PMID: 38919733 PMCID: PMC11196763 DOI: 10.3389/froh.2024.1366153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 05/16/2024] [Indexed: 06/27/2024] Open
Abstract
Objectives The human oral microbiome may play a role in the development of oral squamous cell carcinoma. The aim of this scoping review was to examine microbial diversity and differences in the composition of the oral microbiome between OSCC patients and healthy controls. Methods A literature search (in PubMed and Embase.com) was performed on January 9, 2023. The outcome variables used from the included studies of this review were alpha- and beta diversity and oral microbiome composition profiles for each taxonomic level (phylum-, class-, order-, genus- and species level). Results Thirteen out of 423 studies were included in this review compromising 1,677 subjects, of which 905 (54.0%) were OSCC patients and 772 (46.0%) were healthy controls. Most studies found a higher alpha diversity in the OSCC patient group and significantly different beta diversities between OSCC patient samples and healthy control samples. Studies reported more abundant Fusobacteria (on phylum level), Fusobacterium (on genus level), Fusobacterium nucleatum, Porphyromonas endodontalis and Prevotella intermedia (on species level) in OSCC patients. The healthy control group had more abundant Actinobacteria (on phylum level), Streptococcus and Veilonella (on genus level) and Veilonella parvula (on species level) according to most studies. Conclusions Our findings show differences in oral microbiome diversity and composition in OSCC patients. Clinical implications demand continuing study. Development of internationally accepted standard procedures for oral sample collection and oral microbiota analysis is needed for more conclusive and clinically relevant comparisons in future research.
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Affiliation(s)
- M. C. van Dijk
- Department of Oral Medicine, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University, Amsterdam, Netherlands
| | - J. F. Petersen
- Department of Oral Medicine, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University, Amsterdam, Netherlands
| | - J. E. Raber-Durlacher
- Department of Oral Medicine, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University, Amsterdam, Netherlands
- Department of Oral and Maxillofacial Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - J. B. Epstein
- City of Hope Comprehensive Cancer Center, Duarte CA and Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical System, Los Angeles, CA, United States
| | - A. M. G. A. Laheij
- Department of Oral Medicine, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University, Amsterdam, Netherlands
- Department of Oral and Maxillofacial Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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50
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Fan X, Monson KR, Peters BA, Whittington JM, Um CY, Oberstein PE, McCullough ML, Freedman ND, Huang WY, Ahn J, Hayes RB. Altered salivary microbiota associated with high-sugar beverage consumption. Sci Rep 2024; 14:13386. [PMID: 38862651 PMCID: PMC11167035 DOI: 10.1038/s41598-024-64324-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 06/07/2024] [Indexed: 06/13/2024] Open
Abstract
The human oral microbiome may alter oral and systemic disease risk. Consuming high sugar content beverages (HSB) can lead to caries development by altering the microbial composition in dental plaque, but little is known regarding HSB-specific oral microbial alterations. Therefore, we conducted a large, population-based study to examine associations of HSB intake with oral microbiome diversity and composition. Using mouthwash samples of 989 individuals in two nationwide U.S. cohorts, bacterial 16S rRNA genes were amplified, sequenced, and assigned to bacterial taxa. HSB intake was quantified from food frequency questionnaires as low (< 1 serving/week), medium (1-3 servings/week), or high (> 3 servings/week). We assessed overall bacterial diversity and presence of specific taxa with respect to HSB intake in each cohort separately and combined in a meta-analysis. Consistently in the two cohorts, we found lower species richness in high HSB consumers (> 3 cans/week) (p = 0.027), and that overall bacterial community profiles differed from those of non-consumers (PERMANOVA p = 0.040). Specifically, presence of a network of commensal bacteria (Lachnospiraceae, Peptostreptococcaceae, and Alloprevotella rava) was less common in high compared to non-consumers, as were other species including Campylobacter showae, Prevotella oulorum, and Mycoplasma faucium. Presence of acidogenic bacteria Bifodobacteriaceae and Lactobacillus rhamnosus was more common in high consumers. Abundance of Fusobacteriales and its genus Leptotrichia, Lachnoanaerobaculum sp., and Campylobacter were lower with higher HSB consumption, and their abundances were correlated. No significant interaction was found for these associations with diabetic status or with microbial markers for caries (S. mutans) and periodontitis (P. gingivalis). Our results suggest that soft drink intake may alter the salivary microbiota, with consistent results across two independent cohorts. The observed perturbations of overrepresented acidogenic bacteria and underrepresented commensal bacteria in high HSB consumers may have implications for oral and systemic disease risk.
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Affiliation(s)
- Xiaozhou Fan
- Division of Epidemiology, Department of Population Health, NYU Grossman School of Medicine, 180 Madison, New York, NY, 10016, USA
| | - Kelsey R Monson
- Division of Epidemiology, Department of Population Health, NYU Grossman School of Medicine, 180 Madison, New York, NY, 10016, USA
- Laura and Isaac Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | - Brandilyn A Peters
- Division of Epidemiology, Department of Population Health, NYU Grossman School of Medicine, 180 Madison, New York, NY, 10016, USA
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | | | - Caroline Y Um
- Department of Population Science, American Cancer Society, Atlanta, GA, USA
| | - Paul E Oberstein
- Laura and Isaac Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | | | - Neal D Freedman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Wen-Yi Huang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Jiyoung Ahn
- Division of Epidemiology, Department of Population Health, NYU Grossman School of Medicine, 180 Madison, New York, NY, 10016, USA
- Laura and Isaac Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | - Richard B Hayes
- Division of Epidemiology, Department of Population Health, NYU Grossman School of Medicine, 180 Madison, New York, NY, 10016, USA.
- Laura and Isaac Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA.
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