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Lê S, Cecchin-Albertoni C, Thomas C, Kemoun P, Minty M, Blasco-Baque V. The Role of Dysbiotic Oral Microbiota in Cardiometabolic Diseases: A Narrative Review. Diagnostics (Basel) 2023; 13:3184. [PMID: 37892006 PMCID: PMC10605832 DOI: 10.3390/diagnostics13203184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/25/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
Over the past decade, there have been significant advancements in the high-flow analysis of "omics," shedding light on the relationship between the microbiota and the host. However, the full recognition of this relationship and its implications in cardiometabolic diseases are still underway, despite advancements in understanding the pathophysiology of these conditions. Cardiometabolic diseases, which include a range of conditions from insulin resistance to cardiovascular disease and type 2 diabetes, continue to be the leading cause of mortality worldwide, with a persistently high morbidity rate. While the link between the intestinal microbiota and cardiometabolic risks has been extensively explored, the role of the oral microbiota, the second-largest microbiota in the human body, and specifically the dysbiosis of this microbiota in causing these complications, remains incompletely defined. This review aims to examine the association between the oral microbiota and cardiometabolic diseases, focusing on the dysbiosis of the oral microbiota, particularly in periodontal disease. Additionally, we will dive into the mechanistic aspects of this dysbiosis that contribute to the development of these complications. Finally, we will discuss potential prevention and treatment strategies, including the use of prebiotics, probiotics, and other interventions.
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Affiliation(s)
- Sylvie Lê
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- Team InCOMM/Intestine ClinicOmics Metabolism & Microbiota, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC)—UMR1297 Inserm, Université Paul Sabatier, 1 Avenue Jean Poulhes, 31432 Toulouse, France
| | - Chiara Cecchin-Albertoni
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- RESTORE Research Center, CNRS, EFS, ENVT, Batiment INCERE, INSERM, Université de Toulouse, 4 bis Avenue Hubert Curien, 31100 Toulouse, France
| | - Charlotte Thomas
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- Team InCOMM/Intestine ClinicOmics Metabolism & Microbiota, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC)—UMR1297 Inserm, Université Paul Sabatier, 1 Avenue Jean Poulhes, 31432 Toulouse, France
| | - Philippe Kemoun
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- RESTORE Research Center, CNRS, EFS, ENVT, Batiment INCERE, INSERM, Université de Toulouse, 4 bis Avenue Hubert Curien, 31100 Toulouse, France
| | - Matthieu Minty
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- Team InCOMM/Intestine ClinicOmics Metabolism & Microbiota, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC)—UMR1297 Inserm, Université Paul Sabatier, 1 Avenue Jean Poulhes, 31432 Toulouse, France
| | - Vincent Blasco-Baque
- Département Dentaire, Université Paul Sabatier III (UPS), 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France; (S.L.); (C.C.-A.); (C.T.); (P.K.); (M.M.)
- Service d’Odontologie Toulouse, CHU Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- Team InCOMM/Intestine ClinicOmics Metabolism & Microbiota, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC)—UMR1297 Inserm, Université Paul Sabatier, 1 Avenue Jean Poulhes, 31432 Toulouse, France
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Wang H, Doumard E, Soule-Dupuy C, Kemoun P, Aligon J, Monsarrat P. Explanations as a New Metric for Feature Selection: A Systematic Approach. IEEE J Biomed Health Inform 2023; 27:4131-4142. [PMID: 37220033 DOI: 10.1109/jbhi.2023.3279340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
With the extensive use of Machine Learning (ML) in the biomedical field, there was an increasing need for Explainable Artificial Intelligence (XAI) to improve transparency and reveal complex hidden relationships between variables for medical practitioners, while meeting regulatory requirements. Feature Selection (FS) is widely used as a part of a biomedical ML pipeline to significantly reduce the number of variables while preserving as much information as possible. However, the choice of FS methods affects the entire pipeline including the final prediction explanations, whereas very few works investigate the relationship between FS and model explanations. Through a systematic workflow performed on 145 datasets and an illustration on medical data, the present work demonstrated the promising complementarity of two metrics based on explanations (using ranking and influence changes) in addition to accuracy and retention rate to select the most appropriate FS/ML models. Measuring how much explanations differ with/without FS are particularly promising for FS methods recommendation. While reliefF generally performs the best on average, the optimal choice may vary for each dataset. Positioning FS methods in a tridimensional space, integrating explanations-based metrics, accuracy and retention rate, would allow the user to choose the priorities to be given on each of the dimensions. In biomedical applications, where each medical condition may have its own preferences, this framework will make it possible to offer the healthcare professional the appropriate FS technique, to select the variables that have an important explainable impact, even if this comes at the expense of a limited drop of accuracy.
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Bernard D, Doumard E, Ader I, Kemoun P, Pagès J, Galinier A, Cussat‐Blanc S, Furger F, Ferrucci L, Aligon J, Delpierre C, Pénicaud L, Monsarrat P, Casteilla L. Explainable machine learning framework to predict personalized physiological aging. Aging Cell 2023; 22:e13872. [PMID: 37300327 PMCID: PMC10410015 DOI: 10.1111/acel.13872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/17/2023] [Accepted: 05/03/2023] [Indexed: 06/12/2023] Open
Abstract
Attaining personalized healthy aging requires accurate monitoring of physiological changes and identifying subclinical markers that predict accelerated or delayed aging. Classic biostatistical methods most rely on supervised variables to estimate physiological aging and do not capture the full complexity of inter-parameter interactions. Machine learning (ML) is promising, but its black box nature eludes direct understanding, substantially limiting physician confidence and clinical usage. Using a broad population dataset from the National Health and Nutrition Examination Survey (NHANES) study including routine biological variables and after selection of XGBoost as the most appropriate algorithm, we created an innovative explainable ML framework to determine a Personalized physiological age (PPA). PPA predicted both chronic disease and mortality independently of chronological age. Twenty-six variables were sufficient to predict PPA. Using SHapley Additive exPlanations (SHAP), we implemented a precise quantitative associated metric for each variable explaining physiological (i.e., accelerated or delayed) deviations from age-specific normative data. Among the variables, glycated hemoglobin (HbA1c) displays a major relative weight in the estimation of PPA. Finally, clustering profiles of identical contextualized explanations reveal different aging trajectories opening opportunities to specific clinical follow-up. These data show that PPA is a robust, quantitative and explainable ML-based metric that monitors personalized health status. Our approach also provides a complete framework applicable to different datasets or variables, allowing precision physiological age estimation.
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Affiliation(s)
- David Bernard
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTFrance
- Université Toulouse 1 – Capitole, Institute of Research in Informatics (IRIT) of Toulouse, CNRSToulouseFrance
| | - Emmanuel Doumard
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTFrance
| | - Isabelle Ader
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTFrance
| | - Philippe Kemoun
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTFrance
- Oral Medicine Department and Hospital of ToulouseToulouse Institute of Oral Medicine and Science, CHU de ToulouseToulouseFrance
| | - Jean‐Christophe Pagès
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTFrance
- UFR Santé, Département Médecine, Institut Fédératif de Biologie, CHU de ToulouseToulouseFrance
| | - Anne Galinier
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTFrance
- UFR Santé, Département Médecine, Institut Fédératif de Biologie, CHU de ToulouseToulouseFrance
| | - Sylvain Cussat‐Blanc
- Université Toulouse 1 – Capitole, Institute of Research in Informatics (IRIT) of Toulouse, CNRSToulouseFrance
- Artificial and Natural Intelligence Toulouse Institute ANITIToulouseFrance
| | - Felix Furger
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTFrance
| | - Luigi Ferrucci
- Biomedical Research Centre, National Institute on AgingNIHBaltimoreMarylandUSA
| | - Julien Aligon
- Université Toulouse 1 – Capitole, Institute of Research in Informatics (IRIT) of Toulouse, CNRSToulouseFrance
| | | | - Luc Pénicaud
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTFrance
| | - Paul Monsarrat
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTFrance
- Oral Medicine Department and Hospital of ToulouseToulouse Institute of Oral Medicine and Science, CHU de ToulouseToulouseFrance
- Artificial and Natural Intelligence Toulouse Institute ANITIToulouseFrance
| | - Louis Casteilla
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTFrance
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Piriou M, Lorenzo C, Raymond-Letron I, Coronas-Dupuis S, Pieruccioni L, Rouquette J, Guissard C, Chaumont J, Casteilla L, Planat-Benard V, Kemoun P, Monsarrat P. A Spectral Principal Component Analysis-Based Framework for Composite Hard/Soft Tissue Fluorescence Image Investigation. Front Physiol 2022; 13:899626. [PMID: 35910575 PMCID: PMC9325997 DOI: 10.3389/fphys.2022.899626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 06/06/2022] [Indexed: 11/25/2022] Open
Abstract
Traditional thin sectioning microscopy of large bone and dental tissue samples using demineralization may disrupt structure morphologies and even damage soft tissues, thus compromising the histopathological investigation. Here, we developed a synergistic and original framework on thick sections based on wide-field multi-fluorescence imaging and spectral Principal Component Analysis (sPCA) as an alternative, fast, versatile, and reliable solution, suitable for highly mineralized tissue structure sustain and visualization. Periodontal 2-mm thick sections were stained with a solution containing five fluorescent dyes chosen for their ability to discriminate close tissues, and acquisitions were performed with a multi-zoom macroscope for blue, green, red, and NIR (near-infrared) emissions. Eigen-images derived from both standard scaler (Std) and Contrast Limited Adaptive Histogram Equalization (Clahe) pre-preprocessing significantly enhanced tissue contrasts, highly suitable for histopathological investigation with an in-depth detail for sub-tissue structure discrimination. Using this method, it is possible to preserve and delineate accurately the different anatomical/morphological features of the periodontium, a complex tooth-supporting multi-tissue. Indeed, we achieve characterization of gingiva, alveolar bone, cementum, and periodontal ligament tissues. The ease and adaptability of this approach make it an effective method for providing high-contrast features that are not usually available in standard staining histology. Beyond periodontal investigations, this first proof of concept of an sPCA solution for optical microscopy of complex structures, especially including mineralized tissues opens new perspectives to deal with other chronic diseases involving complex tissue and organ defects. Overall, such an imaging framework appears to be a novel and convenient strategy for optical microscopy investigation.
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Affiliation(s)
- Marie Piriou
- Dental Faculty and Hospital of Toulouse—Toulouse Institute of Oral Medicine and Science, CHU de Toulouse, Toulouse, France
| | - Corinne Lorenzo
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Isabelle Raymond-Letron
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
- LabHPEC, Université de Toulouse, ENVT (Ecole Nationale Vétérinaire de Toulouse), Toulouse, France
| | - Sophie Coronas-Dupuis
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
- LabHPEC, Université de Toulouse, ENVT (Ecole Nationale Vétérinaire de Toulouse), Toulouse, France
| | - Laetitia Pieruccioni
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Jacques Rouquette
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Christophe Guissard
- Dental Faculty and Hospital of Toulouse—Toulouse Institute of Oral Medicine and Science, CHU de Toulouse, Toulouse, France
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Jade Chaumont
- Dental Faculty and Hospital of Toulouse—Toulouse Institute of Oral Medicine and Science, CHU de Toulouse, Toulouse, France
| | - Louis Casteilla
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Valérie Planat-Benard
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Philippe Kemoun
- Dental Faculty and Hospital of Toulouse—Toulouse Institute of Oral Medicine and Science, CHU de Toulouse, Toulouse, France
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Paul Monsarrat
- Dental Faculty and Hospital of Toulouse—Toulouse Institute of Oral Medicine and Science, CHU de Toulouse, Toulouse, France
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
- Artificial and Natural Intelligence Toulouse Institute ANITI, Toulouse, France
- *Correspondence: Paul Monsarrat,
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Hagimont A, Bourdens L, Authier H, Lemaitre M, Guissard C, Monsarrat P, Courtois B, Chaput B, Planat V, Coste A, Kemoun P, Varin A. Mesenchymal Stem/Stromal Cells: ADIPOSE-DERIVED MESENCHYMAL STROMAL CELLS FROM BUCCAL FAT PAD AND SUBCUTANEOUS ADIPOSE TISSUES: SO SIMILAR SO DIFFERENT. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00178-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Monsarrat P, Laurencin-Dalicieux S, Blasco-Baque V, Jourdan G, Bouhsira E, Casteilla L, Raymond-Letron I, Kemoun P, Planat V. Mesenchymal Stem/Stromal Cells: PERIODONTITIS THERAPY USING COMBINED IMPLANTATION OF AUTOLOGOUS ADIPOSE-DERIVED STROMAL CELLS AND PLATELET LYSATE-BASED HYDROGEL: A DOUBLE-BLIND RANDOMIZED CONTROLLED PRECLINICAL STUDY IN A SPONTANEOUS CANINE MODEL. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00160-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Monsarrat P, Bernard D, Marty M, Cecchin-Albertoni C, Doumard E, Gez L, Aligon J, Vergnes JN, Casteilla L, Kemoun P. Systemic Periodontal Risk Score Using an Innovative Machine Learning Strategy: An Observational Study. J Pers Med 2022; 12:jpm12020217. [PMID: 35207705 PMCID: PMC8879877 DOI: 10.3390/jpm12020217] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 01/28/2022] [Accepted: 01/30/2022] [Indexed: 11/16/2022] Open
Abstract
Early diagnosis is crucial for individuals who are susceptible to tooth-supporting tissue diseases (e.g., periodontitis) that may lead to tooth loss, so as to prevent systemic implications and maintain quality of life. The aim of this study was to propose a personalized explainable machine learning algorithm, solely based on non-invasive predictors that can easily be collected in a clinic, to identify subjects at risk of developing periodontal diseases. To this end, the individual data and periodontal health of 532 subjects was assessed. A machine learning pipeline combining a feature selection step, multilayer perceptron, and SHapley Additive exPlanations (SHAP) explainability, was used to build the algorithm. The prediction scores for healthy periodontium and periodontitis gave final F1-scores of 0.74 and 0.68, respectively, while gingival inflammation was harder to predict (F1-score of 0.32). Age, body mass index, smoking habits, systemic pathologies, diet, alcohol, educational level, and hormonal status were found to be the most contributive variables for periodontal health prediction. The algorithm clearly shows different risk profiles before and after 35 years of age and suggests transition ages in the predisposition to developing gingival inflammation or periodontitis. This innovative approach to systemic periodontal disease risk profiles, combining both ML and up-to-date explainability algorithms, paves the way for new periodontal health prediction strategies.
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Affiliation(s)
- Paul Monsarrat
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, 31100 Toulouse, France; (D.B.); (C.C.-A.); (E.D.); (L.C.); (P.K.)
- Artificial and Natural Intelligence Toulouse Institute ANITI, 31013 Toulouse, France
- Dental Faculty and CHU de Toulouse—Toulouse Institute of Oral Medicine and Science, 31062 Toulouse, France; (M.M.); (L.G.); (J.-N.V.)
- Correspondence:
| | - David Bernard
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, 31100 Toulouse, France; (D.B.); (C.C.-A.); (E.D.); (L.C.); (P.K.)
| | - Mathieu Marty
- Dental Faculty and CHU de Toulouse—Toulouse Institute of Oral Medicine and Science, 31062 Toulouse, France; (M.M.); (L.G.); (J.-N.V.)
| | - Chiara Cecchin-Albertoni
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, 31100 Toulouse, France; (D.B.); (C.C.-A.); (E.D.); (L.C.); (P.K.)
- Dental Faculty and CHU de Toulouse—Toulouse Institute of Oral Medicine and Science, 31062 Toulouse, France; (M.M.); (L.G.); (J.-N.V.)
| | - Emmanuel Doumard
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, 31100 Toulouse, France; (D.B.); (C.C.-A.); (E.D.); (L.C.); (P.K.)
| | - Laure Gez
- Dental Faculty and CHU de Toulouse—Toulouse Institute of Oral Medicine and Science, 31062 Toulouse, France; (M.M.); (L.G.); (J.-N.V.)
| | - Julien Aligon
- Institute of Research in Informatics (IRIT) of Toulouse, CNRS—UMR5505, 31062 Toulouse, France;
| | - Jean-Noël Vergnes
- Dental Faculty and CHU de Toulouse—Toulouse Institute of Oral Medicine and Science, 31062 Toulouse, France; (M.M.); (L.G.); (J.-N.V.)
- CERPOP, UMR1295 (Axe MAINTAIN), Université P. Sabatier, 31000 Toulouse, France
- Population Oral Health Research Cluster of the McGill Faculty of Dental Medicine and Oral Health Sciences, Montreal, QC H3A 1G1, Canada
| | - Louis Casteilla
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, 31100 Toulouse, France; (D.B.); (C.C.-A.); (E.D.); (L.C.); (P.K.)
| | - Philippe Kemoun
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Université P. Sabatier, 31100 Toulouse, France; (D.B.); (C.C.-A.); (E.D.); (L.C.); (P.K.)
- Dental Faculty and CHU de Toulouse—Toulouse Institute of Oral Medicine and Science, 31062 Toulouse, France; (M.M.); (L.G.); (J.-N.V.)
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Bourdens L, Lemaitre M, Guissard C, Monsarrat P, Courtois B, Chaput B, Planat V, Kemoun P, Varin A. Human buccal fat pad-derived mesenchymal stromal cells present different immunosuppressive capacities compared to human abdominal sub cutaneous adipose-derived stromal cells. Cytotherapy 2021. [DOI: 10.1016/s146532492100325x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Blasco-Baque V, Garidou L, Pomié C, Escoula Q, Loubieres P, Le Gall-David S, Lemaitre M, Nicolas S, Klopp P, Waget A, Azalbert V, Colom A, Bonnaure-Mallet M, Kemoun P, Serino M, Burcelin R. Periodontitis induced by Porphyromonas gingivalis drives periodontal microbiota dysbiosis and insulin resistance via an impaired adaptive immune response. Gut 2017; 66:872-885. [PMID: 26838600 PMCID: PMC5531227 DOI: 10.1136/gutjnl-2015-309897] [Citation(s) in RCA: 181] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 12/18/2015] [Indexed: 01/11/2023]
Abstract
OBJECTIVE To identify a causal mechanism responsible for the enhancement of insulin resistance and hyperglycaemia following periodontitis in mice fed a fat-enriched diet. DESIGN We set-up a unique animal model of periodontitis in C57Bl/6 female mice by infecting the periodontal tissue with specific and alive pathogens like Porphyromonas gingivalis (Pg), Fusobacterium nucleatum and Prevotella intermedia. The mice were then fed with a diabetogenic/non-obesogenic fat-enriched diet for up to 3 months. Alveolar bone loss, periodontal microbiota dysbiosis and features of glucose metabolism were quantified. Eventually, adoptive transfer of cervical (regional) and systemic immune cells was performed to demonstrate the causal role of the cervical immune system. RESULTS Periodontitis induced a periodontal microbiota dysbiosis without mainly affecting gut microbiota. The disease concomitantly impacted on the regional and systemic immune response impairing glucose metabolism. The transfer of cervical lymph-node cells from infected mice to naive recipients guarded against periodontitis-aggravated metabolic disease. A treatment with inactivated Pg prior to the periodontal infection induced specific antibodies against Pg and protected the mouse from periodontitis-induced dysmetabolism. Finally, a 1-month subcutaneous chronic infusion of low rates of lipopolysaccharides from Pg mimicked the impact of periodontitis on immune and metabolic parameters. CONCLUSIONS We identified that insulin resistance in the high-fat fed mouse is enhanced by pathogen-induced periodontitis. This is caused by an adaptive immune response specifically directed against pathogens and associated with a periodontal dysbiosis.
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Affiliation(s)
- Vincent Blasco-Baque
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France,Faculté de Chirurgie-Dentaire de Toulouse, Technical platform of Research in Odontology, Toulouse Cedex 09, France
| | - Lucile Garidou
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Céline Pomié
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Quentin Escoula
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Pascale Loubieres
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France,Faculté de Chirurgie-Dentaire de Toulouse, Technical platform of Research in Odontology, Toulouse Cedex 09, France
| | | | - Mathieu Lemaitre
- Faculté de Chirurgie-Dentaire de Toulouse, Technical platform of Research in Odontology, Toulouse Cedex 09, France
| | - Simon Nicolas
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Pascale Klopp
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Aurélie Waget
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Vincent Azalbert
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - André Colom
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | | | - Philippe Kemoun
- Faculté de Chirurgie-Dentaire de Toulouse, Technical platform of Research in Odontology, Toulouse Cedex 09, France
| | - Matteo Serino
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Rémy Burcelin
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
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Monsarrat P, Kemoun P, Vergnes JN, Sensebe L, Casteilla L, Planat-Benard V. Spatial and temporal structure of the clinical research based on mesenchymal stromal cells: A network analysis. Cytotherapy 2016; 19:47-60. [PMID: 27765602 DOI: 10.1016/j.jcyt.2016.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/24/2016] [Accepted: 09/10/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND AIMS Using innovative tools derived from social network analysis, the aims of this study were (i) to decipher the spatial and temporal structure of the research centers network dedicated to the therapeutic uses of mesenchymal stromal cells (MSCs) and (ii) to measure the influence of fields of applications, cellular sources and industry funding on network topography. METHODS From each trial using MSCs reported on ClinicalTrials.gov, all research centers were extracted. Networks were generated using Cytoscape 3.2.2, where each center was assimilated to a node, and one trial to an edge connecting two nodes. RESULTS The analysis included 563 studies. An independent segregation was obvious between continents. Asian, South American and African centers were significantly more isolated than other centers. Isolated centers had fewer advanced phases (P <0.001), completed studies (P = 0.01) and industry-supported studies (P <0.001). Various thematic priorities among continents were identified: the cardiovascular, digestive and nervous system diseases were strongly studied by North America, Europe and Asia, respectively. The choice of cellular sources also affected the network topography; North America was primarily involved in bone-marrow-derived MSC research, whereas Europe and Asia dominated the use of adipose-derived MSCs. Industrial funding was the highest for North American centers (90.5%). CONCLUSIONS Strengthening of international standards and statements with institutional, federal and industrial partners is necessary. More connections would facilitate the transfer of knowledge, sharing of resources, mobility of researchers and advancement of trials. Developing partnerships between industry and academic centers seems beneficial to the advancement of trials across different phases and would facilitate the translation of research discoveries.
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Affiliation(s)
- Paul Monsarrat
- Department of Anatomical Sciences and Radiology, Dental Faculty, Paul Sabatier University, Toulouse University Hospital, Toulouse, France; STROMALab, Université de Toulouse, CNRS ERL 5311, EFS, INP-ENVT, Inserm U1031, UPS, Toulouse, France.
| | - Philippe Kemoun
- Department of Biological Sciences, Dental Faculty, Toulouse University Hospital, Toulouse, France
| | - Jean-Noel Vergnes
- Department of Epidemiology and Public Health, Dental Faculty, Paul Sabatier University, Toulouse University Hospital, Toulouse, France; Division of Oral Health and Society, Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | - Luc Sensebe
- STROMALab, Université de Toulouse, CNRS ERL 5311, EFS, INP-ENVT, Inserm U1031, UPS, Toulouse, France
| | - Louis Casteilla
- STROMALab, Université de Toulouse, CNRS ERL 5311, EFS, INP-ENVT, Inserm U1031, UPS, Toulouse, France
| | - Valerie Planat-Benard
- STROMALab, Université de Toulouse, CNRS ERL 5311, EFS, INP-ENVT, Inserm U1031, UPS, Toulouse, France
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12
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Blasco-Baque V, Serino M, Vergnes JN, Riant E, Loubieres P, Arnal JF, Gourdy P, Sixou M, Burcelin R, Kemoun P. High-fat diet induces periodontitis in mice through lipopolysaccharides (LPS) receptor signaling: protective action of estrogens. PLoS One 2012; 7:e48220. [PMID: 23133617 PMCID: PMC3487901 DOI: 10.1371/journal.pone.0048220] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 09/21/2012] [Indexed: 01/12/2023] Open
Abstract
Background A fat-enriched diet favors the development of gram negative bacteria in the intestine which is linked to the occurrence of type 2 diabetes (T2D). Interestingly, some pathogenic gram negative bacteria are commonly associated with the development of periodontitis which, like T2D, is characterized by a chronic low-grade inflammation. Moreover, estrogens have been shown to regulate glucose homeostasis via an LPS receptor dependent immune-modulation. In this study, we evaluated whether diet-induced metabolic disease would favor the development of periodontitis in mice. In addition, the regulatory role of estrogens in this process was assessed. Methods Four-week-old C57BL6/J WT and CD14 (part of the TLR-4 machinery for LPS-recognition) knock-out female mice were ovariectomised and subcutaneously implanted with pellets releasing either placebo or 17β-estradiol (E2). Mice were then fed with either a normal chow or a high-fat diet for four weeks. The development of diabetes was monitored by an intraperitoneal glucose-tolerance test and plasma insulin concentration while periodontitis was assessed by identification of pathogens, quantification of periodontal soft tissue inflammation and alveolar bone loss. Results The fat-enriched diet increased the prevalence of periodontal pathogenic microbiota like Fusobacterium nucleatum and Prevotella intermedia, gingival inflammation and alveolar bone loss. E2 treatment prevented this effect and CD14 knock-out mice resisted high-fat diet-induced periodontal defects. Conclusions/Significance Our data show that mice fed with a diabetogenic diet developed defects and microflora of tooth supporting-tissues typically associated with periodontitis. Moreover, our results suggest a causal link between the activation of the LPS pathway on innate immunity by periodontal microbiota and HFD-induced periodontitis, a pathophysiological mechanism that could be targeted by estrogens.
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Affiliation(s)
- Vincent Blasco-Baque
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Université Paul Sabatier, Unité Mixte de Recherche (UMR) 1048, Institut de Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France
- L.U. 51, Parodontites et Maladies Générales, Université Paul Sabatier, Faculté de Chirurgie Dentaire, 3, Chemin des Maraîchers, Toulouse, France
| | - Matteo Serino
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Université Paul Sabatier, Unité Mixte de Recherche (UMR) 1048, Institut de Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France
| | - Jean-Noël Vergnes
- L.U. 51, Parodontites et Maladies Générales, Université Paul Sabatier, Faculté de Chirurgie Dentaire, 3, Chemin des Maraîchers, Toulouse, France
| | - Elodie Riant
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Université Paul Sabatier, Unité Mixte de Recherche (UMR) 1048, Institut de Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France
| | - Pascale Loubieres
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Université Paul Sabatier, Unité Mixte de Recherche (UMR) 1048, Institut de Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France
- L.U. 51, Parodontites et Maladies Générales, Université Paul Sabatier, Faculté de Chirurgie Dentaire, 3, Chemin des Maraîchers, Toulouse, France
| | - Jean-François Arnal
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Université Paul Sabatier, Unité Mixte de Recherche (UMR) 1048, Institut de Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France
| | - Pierre Gourdy
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Université Paul Sabatier, Unité Mixte de Recherche (UMR) 1048, Institut de Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France
| | - Michel Sixou
- L.U. 51, Parodontites et Maladies Générales, Université Paul Sabatier, Faculté de Chirurgie Dentaire, 3, Chemin des Maraîchers, Toulouse, France
| | - Rémy Burcelin
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Université Paul Sabatier, Unité Mixte de Recherche (UMR) 1048, Institut de Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France
- * E-mail: (RB); (PK)
| | - Philippe Kemoun
- L.U. 51, Parodontites et Maladies Générales, Université Paul Sabatier, Faculté de Chirurgie Dentaire, 3, Chemin des Maraîchers, Toulouse, France
- * E-mail: (RB); (PK)
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Abstract
Platelets play a key role in thrombosis and hemostasis. Accumulation of platelets at the site of vascular injury is the first step in the formation of hemostatic plugs, which play a pivotal role in preventing blood loss after injury. Platelet adhesion at sites of injury results in spreading, secretion, recruitment of additional platelets, and formation of platelet aggregates. Inherited platelet disorders are rare causes of bleeding syndromes, ranging from mild bruising to severe hemorrhage. The defects can reflect deficiency or dysfunction of platelet surface glycoproteins, granule contents, cytoskeletal proteins, platelet pro-coagulant function, and signaling pathways. For instance, Bernard-Soulier syndrome and Glanzmann thrombasthenia are attributed to deficiencies of glycoprotein Ib/IX/V and GPIIb/IIIa, respectively, and are rare but severe platelet disorders. Inherited defects that impair platelet secretion and/or signal transduction are among the most common forms of mild platelet disorders and include gray platelet syndrome, Hermansky-Pudlak syndrome, and Chediak-Higashi syndrome. When necessary, desmopressin, antifibrinolytic agents, and transfusion of platelets remain the most common treatment of inherited platelet disorders. Alternative therapies such as recombinant activated factor VII are also available for a limited number of situations. In this review, we will discuss the management of patients with inherited platelet disorders in various clinical situations related to dental cares, including surgical intervention.
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Affiliation(s)
- Marie-Cécile Valera
- INSERM, U1048, Université Toulouse 3, I2MC, Equipe 11, CHU-Rangueil, Toulouse, France
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Blasco-Baque V, Kemoun P, Loubieres P, Arnal JF, Gourdy P, Serino M, Burcelin R, Sixou M. Impact of type 2 diabetes on the development of periodontal disease in the mouse. Bull Group Int Rech Sci Stomatol Odontol 2011; 50:11-12. [PMID: 22750698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Accepted: 11/22/2011] [Indexed: 06/01/2023]
Affiliation(s)
- V Blasco-Baque
- Parodontites et maladies générales L.U. 46 Faculté de chirurgie dentaire, 3 chemin des Maraîchers, Toulouse Cedex, France.
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Armand S, Kirsch A, Sergent C, Kemoun P, Brunel G. Radiographic and histologic evaluation of a sinus augmentation with composite bone graft: a clinical case report. J Periodontol 2002; 73:1082-8. [PMID: 12296596 DOI: 10.1902/jop.2002.73.9.1082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The purpose of the present study was to present a clinical case report of a sinus augmentation with a composite bone graft and delayed implant placement with a 5-year follow-up. METHODS A 40-year-old female in good health required replacement of her partial upper removable denture with a prosthesis supported by implants. Due to insufficient bone, she had to undergo a sinus lift. A block graft of autogenous chin bone, along with anorganic bovine bone covered by collagen, was utilized. Eight months postsurgery, a biopsy core was taken and 3 endosseous implants were placed. RESULTS The sinus lift and implantation site are illustrated with clinical, radiological, and histological data. The discussion covers the problems raised by the choice of the surgical technique, grafting material, and immediate or delayed placement of the appropriate implant design. CONCLUSION Our results show that a maxillary sinus augmentation with a composite bone graft is a possible method for creating adequate bone volume before implantation.
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Affiliation(s)
- Serge Armand
- Department of Prosthodontics, Faculty of Odontology, Paul Sabatier University, Toulouse, France
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