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Dwibedi C, Larsson P, Ahlinder J, Lindgren P, Myrtennäs K, Granberg M, Larsson E, Öhrman C, Sjödin A, Stenberg P, Forsman M, Johansson A. Corrigendum to "Biological amplification of low frequency mutations unravels laboratory culture history of the bio-threat agent Francisella tularensis" [Forensic Sci. Int.: Genet. 45 (2020) 102230]. Forensic Sci Int Genet 2024:103063. [PMID: 38762409 DOI: 10.1016/j.fsigen.2024.103063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2024]
Affiliation(s)
- Chinmay Dwibedi
- Department of Clinical Microbiology, Clinical Bacteriology, and Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå SE-901 85, Sweden; Swedish Defence Research Agency, Umeå, Sweden.
| | - Pär Larsson
- Swedish Defence Research Agency, Umeå, Sweden
| | | | | | | | | | - Eva Larsson
- Swedish Defence Research Agency, Umeå, Sweden
| | | | | | - Per Stenberg
- Swedish Defence Research Agency, Umeå, Sweden; Department of Ecology and Environmental Science (EMG), Umeå University, Umeå, Sweden
| | | | - Anders Johansson
- Department of Clinical Microbiology, Clinical Bacteriology, and Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå SE-901 85, Sweden
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Dwibedi C, Ekström O, Brandt J, Adiels M, Franzén S, Abrahamsson B, Rosengren AH. Randomized open-label trial of semaglutide and dapagliflozin in patients with type 2 diabetes of different pathophysiology. Nat Metab 2024; 6:50-60. [PMID: 38177805 PMCID: PMC10822775 DOI: 10.1038/s42255-023-00943-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 11/08/2023] [Indexed: 01/06/2024]
Abstract
The limited understanding of the heterogeneity in the treatment response to antidiabetic drugs contributes to metabolic deterioration and cardiovascular complications1,2, stressing the need for more personalized treatment1. Although recent attempts have been made to classify diabetes into subgroups, the utility of such stratification in predicting treatment response is unknown3. We enrolled participants with type 2 diabetes (n = 239, 74 women and 165 men) and features of severe insulin-deficient diabetes (SIDD) or severe insulin-resistant diabetes (SIRD). Participants were randomly assigned to treatment with the glucagon-like peptide 1 receptor agonist semaglutide or the sodium-glucose cotransporter 2 inhibitor dapagliflozin for 6 months (open label). The primary endpoint was the change in glycated haemoglobin (HbA1c). Semaglutide induced a larger reduction in HbA1c levels than dapagliflozin (mean difference, 8.2 mmol mol-1; 95% confidence interval, -10.0 to -6.3 mmol mol-1), with a pronounced effect in those with SIDD. No difference in adverse events was observed between participants with SIDD and those with SIRD. Analysis of secondary endpoints showed greater reductions in fasting and postprandial glucose concentrations in response to semaglutide in participants with SIDD than in those with SIRD and a more pronounced effect on postprandial glucose by dapagliflozin in participants with SIDD than in those with SIRD. However, no significant interaction was found between drug assignment and the SIDD or SIRD subgroup. In contrast, continuous measures of body mass index, blood pressure, insulin secretion and insulin resistance were useful in identifying those likely to have the largest improvements in glycaemic control and cardiovascular risk factors by adding semaglutide or dapagliflozin. Thus, systematic evaluation of continuous pathophysiological variables can guide the prediction of the treatment response to these drugs and provide more information than stratified subgroups ( NCT04451837 ).
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Affiliation(s)
- Chinmay Dwibedi
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
- Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Ola Ekström
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University, Malmö, Sweden
| | - Jasmine Brandt
- Department of Clinical Chemistry and Pharmacology, Skåne University Hospital, Lund, Sweden
- Clinical Studies Sweden, Forum South, Skåne University Hospital, Lund, Sweden
| | - Martin Adiels
- Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Stefan Franzén
- Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
- AstraZeneca, Gothenburg, Sweden
| | - Birgitta Abrahamsson
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Anders H Rosengren
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.
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Khan MT, Dwibedi C, Sundh D, Pradhan M, Kraft JD, Caesar R, Tremaroli V, Lorentzon M, Bäckhed F. Synergy and oxygen adaptation for development of next-generation probiotics. Nature 2023; 620:381-385. [PMID: 37532933 PMCID: PMC10412450 DOI: 10.1038/s41586-023-06378-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 06/27/2023] [Indexed: 08/04/2023]
Abstract
The human gut microbiota has gained interest as an environmental factor that may contribute to health or disease1. The development of next-generation probiotics is a promising strategy to modulate the gut microbiota and improve human health; however, several key candidate next-generation probiotics are strictly anaerobic2 and may require synergy with other bacteria for optimal growth. Faecalibacterium prausnitzii is a highly prevalent and abundant human gut bacterium associated with human health, but it has not yet been developed into probiotic formulations2. Here we describe the co-isolation of F. prausnitzii and Desulfovibrio piger, a sulfate-reducing bacterium, and their cross-feeding for growth and butyrate production. To produce a next-generation probiotic formulation, we adapted F. prausnitzii to tolerate oxygen exposure, and, in proof-of-concept studies, we demonstrate that the symbiotic product is tolerated by mice and humans (ClinicalTrials.gov identifier: NCT03728868 ) and is detected in the human gut in a subset of study participants. Our study describes a technology for the production of next-generation probiotics based on the adaptation of strictly anaerobic bacteria to tolerate oxygen exposures without a reduction in potential beneficial properties. Our technology may be used for the development of other strictly anaerobic strains as next-generation probiotics.
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Affiliation(s)
- Muhammad Tanweer Khan
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Metabogen, Mölndal, Sweden
| | - Chinmay Dwibedi
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Daniel Sundh
- Sahlgrenska Osteoporosis Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Meenakshi Pradhan
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Jamie D Kraft
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Robert Caesar
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Valentina Tremaroli
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Mattias Lorentzon
- Sahlgrenska Osteoporosis Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Region Västra Götaland, Geriatric Medicine Clinic, Sahlgrenska University Hospital Mölndal, Mölndal, Sweden
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Victoria, Australia
| | - Fredrik Bäckhed
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
- Department of Clinical Physiology, Sahlgrenska University Hospital, Gothenburg, Sweden.
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark.
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Dwibedi C, Mellergård E, Gyllensten AC, Nilsson K, Axelsson AS, Bäckman M, Sahlgren M, Friend SH, Persson S, Franzén S, Abrahamsson B, Carlsson KS, Rosengren AH. Effect of self-managed lifestyle treatment on glycemic control in patients with type 2 diabetes. NPJ Digit Med 2022; 5:60. [PMID: 35545657 PMCID: PMC9095642 DOI: 10.1038/s41746-022-00606-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 11/27/2021] [Accepted: 04/18/2022] [Indexed: 12/22/2022] Open
Abstract
The lack of effective, scalable solutions for lifestyle treatment is a global clinical problem, causing severe morbidity and mortality. We developed a method for lifestyle treatment that promotes self-reflection and iterative behavioral change, provided as a digital tool, and evaluated its effect in 370 patients with type 2 diabetes (ClinicalTrials.gov identifier: NCT04691973). Users of the tool had reduced blood glucose, both compared with randomized and matched controls (involving 158 and 204 users, respectively), as well as improved systolic blood pressure, body weight and insulin resistance. The improvement was sustained during the entire follow-up (average 730 days). A pathophysiological subgroup of obese insulin-resistant individuals had a pronounced glycemic response, enabling identification of those who would benefit in particular from lifestyle treatment. Natural language processing showed that the metabolic improvement was coupled with the self-reflective element of the tool. The treatment is cost-saving because of improved risk factor control for cardiovascular complications. The findings open an avenue for self-managed lifestyle treatment with long-term metabolic efficacy that is cost-saving and can reach large numbers of people.
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Affiliation(s)
- Chinmay Dwibedi
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | | | | | | | - Annika S Axelsson
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | | | | | - Stephen H Friend
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Sofie Persson
- Swedish Institute for Health Economics, Lund, Sweden
| | - Stefan Franzén
- RegisterCentrum Västra Götaland, Göteborg, Sweden.,Health Metrics, Department of Public Health and Community Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Birgitta Abrahamsson
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | | | - Anders H Rosengren
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden. .,Faculty of Medicine, Lund University, Lund, Sweden.
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Dwibedi C, Abrahamsson B, Rosengren AH. Effect of Digital Lifestyle Management on Metabolic Control and Quality of Life in Patients with Well-Controlled Type 2 Diabetes. Diabetes Ther 2022; 13:423-439. [PMID: 35150403 PMCID: PMC8934806 DOI: 10.1007/s13300-022-01214-2] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/27/2022] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION The lack of effective, scalable solutions for lifestyle treatment is a global clinical problem, causing severe morbidity and mortality. Digital tools could enable broad utility, but long-term metabolic outcomes and the influence on quality of life are unclear. METHODS We developed a new method for lifestyle treatment that promotes self-reflection and iterative behavioural change, provided as a digital tool, and evaluated its effect on glycaemic control in patients with type 2 diabetes with HbA1c below 52 mmol/mol (n = 297). As a secondary analysis, its effect on quality of life (using SF-12) was examined in both participants with and without diabetes (total n = 1914). The tool was evaluated during a 12-week randomization period to assess the existence of effect, with a subsequent open-label follow-up to study long-term outcomes. RESULTS Participants were randomized to wait or access the intervention tool. The mean difference in HbA1c was 2 mmol/mol (95% CI - 4 to 0; P = 0.02) after 12 weeks in participants with type 2 diabetes. The groups were then merged to enable all participants to use the tool. The mean HbA1c reduction from baseline in patients with type 2 diabetes using the tool was 2 mmol/mol compared with matched controls (95% CI - 3 to 0; P = 0.005). In users with HbA1c above 45 mmol/mol, the mean difference between the groups was 4 mmol/mol (95% CI - 7 to - 2). The improvements were sustained during the follow-up of 1 year on average. Users of the tool also had improved quality of life from baseline to 6 months, mainly observed in non-diabetic participants. CONCLUSION The tool does not require in-person reinforcement or increased healthcare resources, and the marginal cost is fundamentally lower than pharmacological treatment and most existing lifestyle interventions. The results therefore open a new means for self-managed lifestyle treatment with long-term metabolic efficacy that can benefit large numbers of people. TRIAL REGISTRATION ClinicalTrials.gov NCT04624321 and NCT05006508.
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Affiliation(s)
- Chinmay Dwibedi
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Medicinaregatan 11, 40530, Gothenburg, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Birgitta Abrahamsson
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Medicinaregatan 11, 40530, Gothenburg, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Anders H Rosengren
- Department of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Medicinaregatan 11, 40530, Gothenburg, Sweden.
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden.
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Haghikia A, Zimmermann F, Schumann P, Jasina A, Roessler J, Schmidt D, Heinze P, Kaisler J, Nageswaran V, Aigner A, Ceglarek U, Cineus R, Hegazy AN, van der Vorst EPC, Döring Y, Strauch CM, Nemet I, Tremaroli V, Dwibedi C, Kränkel N, Leistner DM, Heimesaat MM, Bereswill S, Rauch G, Seeland U, Soehnlein O, Müller DN, Gold R, Bäckhed F, Hazen SL, Haghikia A, Landmesser U. Propionate attenuates atherosclerosis by immune-dependent regulation of intestinal cholesterol metabolism. Eur Heart J 2021; 43:518-533. [PMID: 34597388 DOI: 10.1093/eurheartj/ehab644] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 06/30/2021] [Accepted: 09/01/2021] [Indexed: 12/28/2022] Open
Abstract
AIMS Atherosclerotic cardiovascular disease (ACVD) is a major cause of mortality and morbidity worldwide, and increased low-density lipoproteins (LDLs) play a critical role in development and progression of atherosclerosis. Here, we examined for the first time gut immunomodulatory effects of the microbiota-derived metabolite propionic acid (PA) on intestinal cholesterol metabolism. METHODS AND RESULTS Using both human and animal model studies, we demonstrate that treatment with PA reduces blood total and LDL cholesterol levels. In apolipoprotein E-/- (Apoe-/-) mice fed a high-fat diet (HFD), PA reduced intestinal cholesterol absorption and aortic atherosclerotic lesion area. Further, PA increased regulatory T-cell numbers and interleukin (IL)-10 levels in the intestinal microenvironment, which in turn suppressed the expression of Niemann-Pick C1-like 1 (Npc1l1), a major intestinal cholesterol transporter. Blockade of IL-10 receptor signalling attenuated the PA-related reduction in total and LDL cholesterol and augmented atherosclerotic lesion severity in the HFD-fed Apoe-/- mice. To translate these preclinical findings to humans, we conducted a randomized, double-blinded, placebo-controlled human study (clinical trial no. NCT03590496). Oral supplementation with 500 mg of PA twice daily over the course of 8 weeks significantly reduced LDL [-15.9 mg/dL (-8.1%) vs. -1.6 mg/dL (-0.5%), P = 0.016], total [-19.6 mg/dL (-7.3%) vs. -5.3 mg/dL (-1.7%), P = 0.014] and non-high-density lipoprotein cholesterol levels [PA vs. placebo: -18.9 mg/dL (-9.1%) vs. -0.6 mg/dL (-0.5%), P = 0.002] in subjects with elevated baseline LDL cholesterol levels. CONCLUSION Our findings reveal a novel immune-mediated pathway linking the gut microbiota-derived metabolite PA with intestinal Npc1l1 expression and cholesterol homeostasis. The results highlight the gut immune system as a potential therapeutic target to control dyslipidaemia that may introduce a new avenue for prevention of ACVDs.
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Affiliation(s)
- Arash Haghikia
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straβe 2, Berlin 10178, Germany
| | - Friederike Zimmermann
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Paul Schumann
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Andrzej Jasina
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Johann Roessler
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - David Schmidt
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Philipp Heinze
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Johannes Kaisler
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Vanasa Nageswaran
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Annette Aigner
- Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straβe 2, Berlin 10178, Germany.,Institute of Biometry and Clinical Epidemiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Uta Ceglarek
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Paul-List-Str. 13-15, Leipzig 04103, Germany.,LIFE-Leipzig Research Center for Civilization Diseases, University of Leipzig, Leipzig, Germany
| | - Roodline Cineus
- Department of Gastroenterology, Infectiology, and Rheumatology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany.,Deutsches Rheumaforschungszentrum Berlin (DRFZ), An Institute of the Leibniz Association, Berlin, Germany
| | - Ahmed N Hegazy
- Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straβe 2, Berlin 10178, Germany.,Department of Gastroenterology, Infectiology, and Rheumatology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany.,Deutsches Rheumaforschungszentrum Berlin (DRFZ), An Institute of the Leibniz Association, Berlin, Germany
| | - Emiel P C van der Vorst
- Institute for Cardiovascular Prevention (IPEK), LMU München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich, Heart Alliance Munich, Munich, Germany.,Interdisciplinary Center for Clinical Research (IZKF), Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Pauwelsstraße 30, Aachen 52074, Germany.,Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Universiteitssingel 50, Maastricht 6200 MD, the Netherlands
| | - Yvonne Döring
- Institute for Cardiovascular Prevention (IPEK), LMU München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich, Heart Alliance Munich, Munich, Germany.,Departement of Angiology, Swiss Cardiovascular Center, Inselspital, Bern University Hospital, University of Bern, Murtenstrasse 35, Bern CH-3008, Switzerland
| | - Christopher M Strauch
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44106, USA
| | - Ina Nemet
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44106, USA
| | - Valentina Tremaroli
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Bruna Stråket 16, Gothenburg SE-413 45, Sweden
| | - Chinmay Dwibedi
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Bruna Stråket 16, Gothenburg SE-413 45, Sweden.,Institute of Neuroscience and Physiology, University of Gothenburg, Box 430, Gothenburg 405 30, Sweden
| | - Nicolle Kränkel
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - David M Leistner
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straβe 2, Berlin 10178, Germany
| | - Markus M Heimesaat
- Insitute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, Berlin 12203, Germany
| | - Stefan Bereswill
- Insitute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, Berlin 12203, Germany
| | - Geraldine Rauch
- Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straβe 2, Berlin 10178, Germany.,Institute of Biometry and Clinical Epidemiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Ute Seeland
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Social Medicine, Epidemiology and Health Economics, Campus Charité Mitte Luisenstraße 57, Berlin 10117, Germany
| | - Oliver Soehnlein
- Institute for Cardiovascular Prevention (IPEK), LMU München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich, Heart Alliance Munich, Munich, Germany.,Institute for Experimental Pathology (ExPat), Center for Molecular Biology of Inflammation (ZMBE), Von-Esmarch-Straße 56, WWU Münster 48149, Germany
| | - Dominik N Müller
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straβe 2, Berlin 10178, Germany.,Experimental and Clinical Research Center, a joint cooperation of Max Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany.,Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Robert-Rössle-Str. 10, Berlin 13092, Germany
| | - Ralf Gold
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Fredrik Bäckhed
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Bruna Stråket 16, Gothenburg SE-413 45, Sweden.,Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, Copenhagen DK-2200, Denmark.,Department of Clinical Physiology, Region Västra Götaland, Sahlgrenska University Hospital, Box 430, Gothenburg 405 30, Sweden
| | - Stanley L Hazen
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44106, USA.,Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, 9500 Euclid Ave., NC-10 Cleveland 44195, OH, USA
| | - Aiden Haghikia
- Department of Neurology, Otto-von-Guericke University, Leipziger Str. 44, Magdeburg 39120, Germany
| | - Ulf Landmesser
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straβe 2, Berlin 10178, Germany
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Ratner C, Shin JH, Dwibedi C, Tremaroli V, Bjerregaard A, Hartmann B, Bäckhed F, Leinninger G, Seeley RJ, Holst B. Anorexia and Fat Aversion Induced by Vertical Sleeve Gastrectomy Is Attenuated in Neurotensin Receptor 1-Deficient Mice. Endocrinology 2021; 162:6311588. [PMID: 34190328 PMCID: PMC8294690 DOI: 10.1210/endocr/bqab130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Indexed: 12/25/2022]
Abstract
Neurotensin (NT) is an anorexic gut hormone and neuropeptide that increases in circulation following bariatric surgery in humans and rodents. We sought to determine the contribution of NT to the metabolic efficacy of vertical sleeve gastrectomy (VSG). To explore a potential mechanistic role of NT in VSG, we performed sham or VSG surgeries in diet-induced obese NT receptor 1 (NTSR1) wild-type and knockout (ko) mice and compared their weight and fat mass loss, glucose tolerance, food intake, and food preference after surgery. NTSR1 ko mice had reduced initial anorexia and body fat loss. Additionally, NTSR1 ko mice had an attenuated reduction in fat preference following VSG. Results from this study suggest that NTSR1 signaling contributes to the potent effect of VSG to initially reduce food intake following VSG surgeries and potentially also on the effects on macronutrient selection induced by VSG. However, maintenance of long-term weight loss after VSG requires signals in addition to NT.
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Affiliation(s)
- Cecilia Ratner
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
- Correspondence: Cecilia Ratner, University of Copenhagen: Kobenhavns Universitet, Blegdamsvej 3B, 2200, Copenhagen N, Denmark. E-mail:
| | - Jae Hoon Shin
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Chinmay Dwibedi
- Wallenberg Laboratory, University of Gothenburg, Gothenburg, Sweden
- Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | | | - Anette Bjerregaard
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Bolette Hartmann
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Fredrik Bäckhed
- Wallenberg Laboratory, University of Gothenburg, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
- Region Västra Götaland, Sahlgrenska University Hospital, Department of Clinical Physiology, Gothenburg, Sweden
| | - Gina Leinninger
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Randy J Seeley
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Birgitte Holst
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
- Correspondence: Birgitte Holst, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark.
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Jeffery IB, Das A, O'Herlihy E, Coughlan S, Cisek K, Moore M, Bradley F, Carty T, Pradhan M, Dwibedi C, Shanahan F, O'Toole PW. Differences in Fecal Microbiomes and Metabolomes of People With vs Without Irritable Bowel Syndrome and Bile Acid Malabsorption. Gastroenterology 2020; 158:1016-1028.e8. [PMID: 31843589 DOI: 10.1053/j.gastro.2019.11.301] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 11/16/2019] [Accepted: 11/01/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Irritable bowel syndrome (IBS) is a heterogeneous disorder, but diagnoses and determination of subtypes are made based on symptoms. We profiled the fecal microbiomes of patients with and without IBS to identify biomarkers of this disorder. METHODS We collected fecal and urine samples from 80 patients with IBS (Rome IV criteria; 16-70 years old) and 65 matched individuals without IBS (control individuals), along with anthropometric, medical, and dietary information. Shotgun and 16S ribosomal RNA amplicon sequencing were performed on feces, whereas urine and fecal metabolites were analyzed by gas chromatography and liquid chromatography-mass spectrometry. Co-occurrence networks were generated based on significant Spearman correlations between data. Bile acid malabsorption (BAM) was identified in patients with diarrhea by retention of radiolabeled selenium-75 homocholic acid taurine. RESULTS Patients with IBS had significant differences in network connections between diet and fecal microbiomes compared with control individuals; these were accompanied by differences in fecal metabolomes. We did not find significant differences in fecal microbiota composition among patients with different IBS symptom subtypes. Fecal metabolome profiles could discriminate patients with IBS from control individuals. Urine metabolomes also differed significantly between patients with IBS and control individuals, but most discriminatory metabolites were related to diet or medications. Fecal metabolomes, but not microbiomes, could distinguish patients with IBS with vs those without BAM. CONCLUSIONS Despite the heterogeneity of IBS, patients have significant differences in urine and fecal metabolomes and fecal microbiome vs control individuals, independent of symptom-based subtypes of IBS. Fecal metabolome analysis can be used to distinguish patients with IBS with vs those without BAM. These findings might be used for developing microbe-based treatments for these disorders.
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Affiliation(s)
- Ian B Jeffery
- 4D pharma Cork Limited, Cavanagh Pharmacy Building, University College Cork, National University of Ireland, Cork, Ireland
| | - Anubhav Das
- 4D pharma Cork Limited, Cavanagh Pharmacy Building, University College Cork, National University of Ireland, Cork, Ireland
| | - Eileen O'Herlihy
- 4D pharma Cork Limited, Cavanagh Pharmacy Building, University College Cork, National University of Ireland, Cork, Ireland
| | - Simone Coughlan
- 4D pharma Cork Limited, Cavanagh Pharmacy Building, University College Cork, National University of Ireland, Cork, Ireland
| | - Katryna Cisek
- 4D pharma Cork Limited, Cavanagh Pharmacy Building, University College Cork, National University of Ireland, Cork, Ireland
| | - Michael Moore
- Department of Radiology, Cork University Hospital, Cork, Ireland
| | - Fintan Bradley
- Medical Physics Department, Cork University Hospital, Cork, Ireland
| | - Tom Carty
- Medical Physics Department, Cork University Hospital, Cork, Ireland
| | - Meenakshi Pradhan
- 4D pharma Cork Limited, Cavanagh Pharmacy Building, University College Cork, National University of Ireland, Cork, Ireland
| | - Chinmay Dwibedi
- 4D pharma Cork Limited, Cavanagh Pharmacy Building, University College Cork, National University of Ireland, Cork, Ireland
| | - Fergus Shanahan
- 4D pharma Cork Limited, Cavanagh Pharmacy Building, University College Cork, National University of Ireland, Cork, Ireland; APC Microbiome Ireland, University College Cork, Ireland
| | - Paul W O'Toole
- 4D pharma Cork Limited, Cavanagh Pharmacy Building, University College Cork, National University of Ireland, Cork, Ireland; APC Microbiome Ireland, University College Cork, Ireland; School of Microbiology, University College Cork, Ireland.
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Dwibedi C, Larsson P, Ahlinder J, Lindgren P, Myrtennäs K, Granberg M, Larsson E, Öhrman C, Sjödin A, Stenberg P, Forsman M, Johansson A. Biological amplification of low frequency mutations unravels laboratory culture history of the bio-threat agent Francisella tularensis. Forensic Sci Int Genet 2020; 45:102230. [PMID: 31924594 DOI: 10.1016/j.fsigen.2019.102230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 11/22/2019] [Accepted: 12/18/2019] [Indexed: 01/15/2023]
Abstract
Challenges of investigating a suspected bio attack include establishing if microorganisms have been cultured to produce attack material and to identify their source. Addressing both issues, we have investigated genetic variations that emerge during laboratory culturing of the bacterial pathogen Francisella tularensis. Key aims were to identify genetic variations that are characteristic of laboratory culturing and explore the possibility of using biological amplification to identify genetic variation present at exceedingly low frequencies in a source sample. We used parallel serial passage experiments and high-throughput sequencing of F. tularensis to explore the genetic variation. We found that during early laboratory culture passages of F. tularensis, gene duplications emerged in the pathogen genome followed by single-nucleotide polymorphisms in genes for bacterial capsule synthesis. Based on a biological enrichment scheme and the use of high-throughput sequencing, we identified genetic variation that likely pre-existed in a source sample. The results support that capsule synthesis gene mutations are common during laboratory culture, and that a biological amplification strategy is useful for linking a F. tularensis sample to a specific laboratory variant among many highly similar variants.
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Affiliation(s)
- Chinmay Dwibedi
- Department of Clinical Microbiology, Clinical Bacteriology, and Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, SE-901 85 Umeå, Sweden; Swedish Defense Research Agency, Umeå, Sweden.
| | - Pär Larsson
- Swedish Defense Research Agency, Umeå, Sweden
| | | | | | | | | | - Eva Larsson
- Swedish Defense Research Agency, Umeå, Sweden
| | | | | | - Per Stenberg
- Swedish Defense Research Agency, Umeå, Sweden; Department of Ecology and Environmental Science (EMG), Umeå University, Umeå, Sweden
| | | | - Anders Johansson
- Department of Clinical Microbiology, Clinical Bacteriology, and Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, SE-901 85 Umeå, Sweden
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Dwibedi C, Birdsell D, Lärkeryd A, Myrtennäs K, Öhrman C, Nilsson E, Karlsson E, Hochhalter C, Rivera A, Maltinsky S, Bayer B, Keim P, Scholz HC, Tomaso H, Wittwer M, Beuret C, Schuerch N, Pilo P, Hernández Pérez M, Rodriguez-Lazaro D, Escudero R, Anda P, Forsman M, Wagner DM, Larsson P, Johansson A. Long-range dispersal moved Francisella tularensis into Western Europe from the East. Microb Genom 2016; 2:e000100. [PMID: 28348839 PMCID: PMC5359409 DOI: 10.1099/mgen.0.000100] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 11/22/2016] [Indexed: 01/31/2023] Open
Abstract
For many infections transmitting to humans from reservoirs in nature, disease dispersal patterns over space and time are largely unknown. Here, a reversed genomics approach helped us understand disease dispersal and yielded insight into evolution and biological properties of Francisella tularensis, the bacterium causing tularemia. We whole-genome sequenced 67 strains and characterized by single-nucleotide polymorphism assays 138 strains, collected from individuals infected 1947-2012 across Western Europe. We used the data for phylogenetic, population genetic and geographical network analyses. All strains (n=205) belonged to a monophyletic population of recent ancestry not found outside Western Europe. Most strains (n=195) throughout the study area were assigned to a star-like phylogenetic pattern indicating that colonization of Western Europe occurred via clonal expansion. In the East of the study area, strains were more diverse, consistent with a founder population spreading from east to west. The relationship of genetic and geographic distance within the F. tularensis population was complex and indicated multiple long-distance dispersal events. Mutation rate estimates based on year of isolation indicated null rates; in outbreak hotspots only, there was a rate of 0.4 mutations/genome/year. Patterns of nucleotide substitution showed marked AT mutational bias suggestive of genetic drift. These results demonstrate that tularemia has moved from east to west in Europe and that F. tularensis has a biology characterized by long-range geographical dispersal events and mostly slow, but variable, replication rates. The results indicate that mutation-driven evolution, a resting survival phase, genetic drift and long-distance geographical dispersal events have interacted to generate genetic diversity within this species.
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Affiliation(s)
- Chinmay Dwibedi
- Department of Clinical Microbiology and the Laboratory for Molecular Infection Medicine Sweden, Umeå University, Umeå, Sweden
- Division of CBRN Security and Defence, Swedish Defense Research Agency, Umeå, Sweden
| | - Dawn Birdsell
- Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff AZ, USA
| | - Adrian Lärkeryd
- Division of CBRN Security and Defence, Swedish Defense Research Agency, Umeå, Sweden
| | - Kerstin Myrtennäs
- Division of CBRN Security and Defence, Swedish Defense Research Agency, Umeå, Sweden
| | - Caroline Öhrman
- Division of CBRN Security and Defence, Swedish Defense Research Agency, Umeå, Sweden
| | - Elin Nilsson
- Division of CBRN Security and Defence, Swedish Defense Research Agency, Umeå, Sweden
| | - Edvin Karlsson
- Division of CBRN Security and Defence, Swedish Defense Research Agency, Umeå, Sweden
| | - Christian Hochhalter
- Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff AZ, USA
| | - Andrew Rivera
- Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff AZ, USA
| | - Sara Maltinsky
- Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff AZ, USA
| | - Brittany Bayer
- Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff AZ, USA
| | - Paul Keim
- Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff AZ, USA
- Translational Genomics Research Institute North, Flagstaff AZ, USA
| | | | - Herbert Tomaso
- Institute of Bacterial Infections and Zoonoses Friedrich-Loeffler, Institut Federal Research Institute for Animal Health, Jena, Germany
| | - Matthias Wittwer
- Biology Division, Spietz Laboratory, Federal Office for Civil Protection, Spietz, Switzerland
| | - Christian Beuret
- Biology Division, Spietz Laboratory, Federal Office for Civil Protection, Spietz, Switzerland
| | - Nadia Schuerch
- Biology Division, Spietz Laboratory, Federal Office for Civil Protection, Spietz, Switzerland
| | - Paola Pilo
- Institute of Veterinary Bacteriology, University of Bern, Bern, Switzerland
| | - Marta Hernández Pérez
- Laboratory of Molecular Biology and Microbiology, Instituto Tecnológico Agrario de Castilla y León, Valladolid, Spain
- Departamento de Ingeniería Agrícola y Forestal, Universidad de Valladolid, Palencia, Spain
| | | | - Raquel Escudero
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Pedro Anda
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Mats Forsman
- Division of CBRN Security and Defence, Swedish Defense Research Agency, Umeå, Sweden
| | - David M. Wagner
- Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff AZ, USA
| | - Pär Larsson
- Division of CBRN Security and Defence, Swedish Defense Research Agency, Umeå, Sweden
| | - Anders Johansson
- Department of Clinical Microbiology and the Laboratory for Molecular Infection Medicine Sweden, Umeå University, Umeå, Sweden
- Correspondence Anders Johansson ()
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