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Mancabelli L, Milani C, De Biase R, Bocchio F, Fontana F, Lugli GA, Alessandri G, Tarracchini C, Viappiani A, De Conto F, Nouvenne A, Ticinesi A, Bussolati O, Meschi T, Cecchi R, Turroni F, Ventura M. Taxonomic and metabolic development of the human gut microbiome across life stages: a worldwide metagenomic investigation. mSystems 2024; 9:e0129423. [PMID: 38441032 PMCID: PMC11019788 DOI: 10.1128/msystems.01294-23] [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: 12/01/2023] [Accepted: 02/09/2024] [Indexed: 03/06/2024] Open
Abstract
The human gut microbiota is a dynamic community of microorganisms that undergo variable changes over the entire life span. To thoroughly investigate the possible fluctuations of the microbiota throughout human life, we performed a pooled analysis of healthy fecal samples across different age groups covering the entire human life span. Our study integrated data from 79 publicly available studies and new stool samples from an Italian cohort, i.e., the Parma Microbiota project, resulting in 6,653 samples processed through the shotgun metagenomic approach. This approach has allowed species-level taxonomic reconstruction of the gut microbiota and investigation of its metabolic potential across the human life span. From a taxonomic point of view, our findings confirmed and detailed at species-level accuracy that the microbial richness of the gut microbiota gradually increases in the first stage of life, becoming relatively stable during adolescence. Moreover, the analysis identified the potential core microbiota representative of distinct age groups, revealing age-related bacterial patterns and the continuous rearrangement of the microbiota in terms of relative abundances across the life span rather than the acquisition and loss of taxa. Furthermore, the shotgun approach provided insights into the functional contribution of the human gut microbiome. The metagenomic analysis revealed functional age-related differences, particularly in carbohydrate and fiber metabolism, suggesting a co-evolution of the microbiome assembly with diet. Additionally, we identified correlations between vitamin synthesis, such as thiamine and niacin, and early life, suggesting a potential role of the microbiome in human physiology, in particular in the functions of the host's nervous and immune systems. IMPORTANCE In this study, we provided comprehensive insights into the dynamic nature of the human gut microbiota across the human life span. In detail, we analyzed a large data set based on a shotgun metagenomic approach, combining public data sets and new samples from the Parma Microbiota project and obtaining a detailed overview of the possible relationship between gut microbiota development and aging. Our findings confirmed the main stages in microbial richness development and revealed specific core microbiota associated with different age stages. Moreover, the shotgun metagenomic approach allowed the disentangling of the functional changes in the microbiome across the human life span, particularly in diet-related metabolism, which is probably correlated to bacterial co-evolution with dietary habits. Notably, our study also uncovered positive correlations with vitamin synthesis in early life, suggesting a possible impact of the microbiota on human physiology.
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Affiliation(s)
- Leonardo Mancabelli
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
| | - Christian Milani
- Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Rosita De Biase
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Fabiana Bocchio
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Federico Fontana
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Gabriele Andrea Lugli
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Giulia Alessandri
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Chiara Tarracchini
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | | | - Flora De Conto
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Antonio Nouvenne
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
- Parma University Hospital, Parma, Italy
| | - Andrea Ticinesi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
- Parma University Hospital, Parma, Italy
| | - Ovidio Bussolati
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
| | - Tiziana Meschi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
- Parma University Hospital, Parma, Italy
| | - Rossana Cecchi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
| | - Francesca Turroni
- Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Marco Ventura
- Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
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Ho E, Drake VJ, Michels AJ, Nkrumah-Elie YM, Brown LL, Scott JM, Newman JW, Shukitt-Hale B, Soumyanath A, Chilton FH, Lindemann SR, Shao A, Mitmesser SH. Perspective: Council for Responsible Nutrition Science in Session. Optimizing Health with Nutrition-Opportunities, Gaps, and the Future. Adv Nutr 2023; 14:948-958. [PMID: 37270030 PMCID: PMC10509435 DOI: 10.1016/j.advnut.2023.05.015] [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: 03/30/2023] [Revised: 05/20/2023] [Accepted: 05/30/2023] [Indexed: 06/05/2023] Open
Abstract
Achieving optimal health is an aspirational goal for the population, yet the definition of health remains unclear. The role of nutrition in health has evolved beyond correcting malnutrition and specific deficiencies and has begun to focus more on achieving and maintaining 'optimal' health through nutrition. As such, the Council for Responsible Nutrition held its October 2022 Science in Session conference to advance this concept. Here, we summarize and discuss the findings of their Optimizing Health through Nutrition - Opportunities and Challenges workshop, including several gaps that need to be addressed to advance progress in the field. Defining and evaluating various indices of optimal health will require overcoming these key gaps. For example, there is a strong need to develop better biomarkers of nutrient status, including more accurate markers of food intake, as well as biomarkers of optimal health that account for maintaining resilience-the ability to recover from or respond to stressors without loss to physical and cognitive performance. In addition, there is a need to identify factors that drive individualized responses to nutrition, including genotype, metabotypes, and the gut microbiome, and to realize the opportunity of precision nutrition for optimal health. This review outlines hallmarks of resilience, provides current examples of nutritional factors to optimize cognitive and performance resilience, and gives an overview of various genetic, metabolic, and microbiome determinants of individualized responses.
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Affiliation(s)
- Emily Ho
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon; Nutrition Program, College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon.
| | - Victoria J Drake
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon
| | | | | | - LaVerne L Brown
- National Institutes of Health, Office of Dietary Supplements, Bethesda, Maryland
| | - Jonathan M Scott
- Consortium for Health and Military Performance, Department of Military and Emergency Medicine, F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, Maryland
| | - John W Newman
- United States Department of Agriculture, Agricultural Research Service, Western Human Nutrition Research Center, Davis, California
| | - Barbara Shukitt-Hale
- United States Department of Agriculture, Agricultural Research Service, Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Amala Soumyanath
- BENFRA Botanical Dietary Supplements Research Center, Department of Neurology, Oregon Health and Science University, Portland, Oregon
| | - Floyd H Chilton
- Center for Precision Nutrition and Wellness, University of Arizona, Tucson, Arizona; School of Nutritional Sciences and Wellness, College of Agriculture and Life Sciences, University of Arizona, Tucson, Arizona
| | - Stephen R Lindemann
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, West Lafayette, Indiana
| | - Andrew Shao
- ChromaDex External Research Program, Los Angeles, California
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Elechi JOG, Sirianni R, Conforti FL, Cione E, Pellegrino M. Food System Transformation and Gut Microbiota Transition: Evidence on Advancing Obesity, Cardiovascular Diseases, and Cancers-A Narrative Review. Foods 2023; 12:2286. [PMID: 37372497 DOI: 10.3390/foods12122286] [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: 04/06/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Food, a vital component of our daily life, is fundamental to our health and well-being, and the knowledge and practices relating to food have been passed down from countless generations of ancestors. Systems may be used to describe this extremely extensive and varied body of agricultural and gastronomic knowledge that has been gathered via evolutionary processes. The gut microbiota also underwent changes as the food system did, and these alterations had a variety of effects on human health. In recent decades, the gut microbiome has gained attention due to its health benefits as well as its pathological effects on human health. Many studies have shown that a person's gut microbiota partially determines the nutritional value of food and that diet, in turn, shapes both the microbiota and the microbiome. The current narrative review aims to explain how changes in the food system over time affect the makeup and evolution of the gut microbiota, advancing obesity, cardiovascular disease (CVD), and cancer. After a brief discussion of the food system's variety and the gut microbiota's functions, we concentrate on the relationship between the evolution of food system transformation and gut microbiota system transition linked to the increase of non-communicable diseases (NCDs). Finally, we also describe sustainable food system transformation strategies to ensure healthy microbiota composition recovery and maintain the host gut barrier and immune functions to reverse advancing NCDs.
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Affiliation(s)
- Jasper Okoro Godwin Elechi
- Department of Pharmacy and Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Rosa Sirianni
- Department of Pharmacy and Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Francesca Luisa Conforti
- Department of Pharmacy and Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Erika Cione
- Department of Pharmacy and Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Michele Pellegrino
- Department of Pharmacy and Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
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Guo X, Okpara ES, Hu W, Yan C, Wang Y, Liang Q, Chiang JYL, Han S. Interactive Relationships between Intestinal Flora and Bile Acids. Int J Mol Sci 2022; 23:8343. [PMID: 35955473 PMCID: PMC9368770 DOI: 10.3390/ijms23158343] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/25/2022] [Accepted: 07/25/2022] [Indexed: 02/01/2023] Open
Abstract
The digestive tract is replete with complex and diverse microbial communities that are important for the regulation of multiple pathophysiological processes in humans and animals, particularly those involved in the maintenance of intestinal homeostasis, immunity, inflammation, and tumorigenesis. The diversity of bile acids is a result of the joint efforts of host and intestinal microflora. There is a bidirectional relationship between the microbial community of the intestinal tract and bile acids in that, while the microbial flora tightly modulates the metabolism and synthesis of bile acids, the bile acid pool and composition affect the diversity and the homeostasis of the intestinal flora. Homeostatic imbalances of bile acid and intestinal flora systems may lead to the development of a variety of diseases, such as inflammatory bowel disease (IBD), colorectal cancer (CRC), hepatocellular carcinoma (HCC), type 2 diabetes (T2DM), and polycystic ovary syndrome (PCOS). The interactions between bile acids and intestinal flora may be (in)directly involved in the pathogenesis of these diseases.
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Affiliation(s)
- Xiaohua Guo
- Department of Hepatobiliary Surgery, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (X.G.); (E.S.O.); (C.Y.)
| | - Edozie Samuel Okpara
- Department of Hepatobiliary Surgery, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (X.G.); (E.S.O.); (C.Y.)
| | - Wanting Hu
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Beijing Key Lab of Microanalytical Methods & Instrumentation, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China; (W.H.); (Y.W.); (Q.L.)
| | - Chuyun Yan
- Department of Hepatobiliary Surgery, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (X.G.); (E.S.O.); (C.Y.)
| | - Yu Wang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Beijing Key Lab of Microanalytical Methods & Instrumentation, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China; (W.H.); (Y.W.); (Q.L.)
| | - Qionglin Liang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Beijing Key Lab of Microanalytical Methods & Instrumentation, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China; (W.H.); (Y.W.); (Q.L.)
| | - John Y. L. Chiang
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA
| | - Shuxin Han
- Department of Hepatobiliary Surgery, Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (X.G.); (E.S.O.); (C.Y.)
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Catlett JL, Carr S, Cashman M, Smith MD, Walter M, Sakkaff Z, Kelley C, Pierobon M, Cohen MB, Buan NR. Metabolic Synergy between Human Symbionts Bacteroides and Methanobrevibacter. Microbiol Spectr 2022; 10:e0106722. [PMID: 35536023 PMCID: PMC9241691 DOI: 10.1128/spectrum.01067-22] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 04/11/2022] [Indexed: 12/12/2022] Open
Abstract
Trophic interactions between microbes are postulated to determine whether a host microbiome is healthy or causes predisposition to disease. Two abundant taxa, the Gram-negative heterotrophic bacterium Bacteroides thetaiotaomicron and the methanogenic archaeon Methanobrevibacter smithii, are proposed to have a synergistic metabolic relationship. Both organisms play vital roles in human gut health; B. thetaiotaomicron assists the host by fermenting dietary polysaccharides, whereas M. smithii consumes end-stage fermentation products and is hypothesized to relieve feedback inhibition of upstream microbes such as B. thetaiotaomicron. To study their metabolic interactions, we defined and optimized a coculture system and used software testing techniques to analyze growth under a range of conditions representing the nutrient environment of the host. We verify that B. thetaiotaomicron fermentation products are sufficient for M. smithii growth and that accumulation of fermentation products alters secretion of metabolites by B. thetaiotaomicron to benefit M. smithii. Studies suggest that B. thetaiotaomicron metabolic efficiency is greater in the absence of fermentation products or in the presence of M. smithii. Under certain conditions, B. thetaiotaomicron and M. smithii form interspecies granules consistent with behavior observed for syntrophic partnerships between microbes in soil or sediment enrichments and anaerobic digesters. Furthermore, when vitamin B12, hematin, and hydrogen gas are abundant, coculture growth is greater than the sum of growth observed for monocultures, suggesting that both organisms benefit from a synergistic mutual metabolic relationship. IMPORTANCE The human gut functions through a complex system of interactions between the host human tissue and the microbes which inhabit it. These diverse interactions are difficult to model or examine under controlled laboratory conditions. We studied the interactions between two dominant human gut microbes, B. thetaiotaomicron and M. smithii, using a seven-component culturing approach that allows the systematic examination of the metabolic complexity of this binary microbial system. By combining high-throughput methods with machine learning techniques, we were able to investigate the interactions between two dominant genera of the gut microbiome in a wide variety of environmental conditions. Our approach can be broadly applied to studying microbial interactions and may be extended to evaluate and curate computational metabolic models. The software tools developed for this study are available as user-friendly tutorials in the Department of Energy KBase.
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Affiliation(s)
- Jennie L. Catlett
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Sean Carr
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Mikaela Cashman
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Megan D. Smith
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Mary Walter
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Zahmeeth Sakkaff
- Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Christine Kelley
- Department of Mathematics, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Massimiliano Pierobon
- Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Myra B. Cohen
- Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
- Department of Computer Science, Iowa State University, Ames, Iowa, USA
| | - Nicole R. Buan
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
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Characteristics of Escherichia coli Isolated from Intestinal Microbiota Children of 0–5 Years Old in the Commune of Abomey-Calavi. J Pathog 2022; 2022:6253894. [PMID: 35707744 PMCID: PMC9192313 DOI: 10.1155/2022/6253894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 05/25/2022] [Indexed: 11/18/2022] Open
Abstract
Escherichia coli is a commensal bacterium and one of the first bacteria to colonize the digestive tract of newborns after birth. It is characterized by great versatility and metabolic flexibility that allows its survival in different niches. The present study aims at analyzing the diversity of E. coli strains isolated from the intestinal microbiota of children aged from 0 to 5 years in the commune of Abomey-Calavi in Benin. For this purpose, a descriptive and analytical cross-sectional study was conducted. A total of 135 stool samples were collected from the pediatric clinic of Abomey-Calavi. Microbiological analyses were performed according to standard microbiology analytical techniques. The molecular characterization of E. coli was performed by investigating eight genes (dinB, icdA, pabB, polB, putP, trpA, trpB, and uidA) using the PCR technique. The results showed that the average loading rate on stool samples was 3.74 × 107 CFU/g for TAMF. A total of 7 species of bacteria were identified at different proportions: Staphylococcus spp (55.36%), E. coli (14.29%), Klebsiella ornithinolytica (12.5%), Serratia odorifera (5.36%), and Enterobacter aerogenes (5.36%). Interestingly, isolated E. coli presented a resistance of 100% to cefotaxime and aztreonam. In addition, resistances of 95.24% and 50% were observed against erythromycin and nalidixic acid, respectively. The molecular characterization of the isolated E. coli strains allowed us to discover another molecular variation within the isolated strains. Genes encoding the enzymes isocitrate dehydrogenase (icd) and DNA polymerase II (polB) were detected at 96.30% in the isolated E. coli strains. Moreover, the genes encoding the enzymes beta-D-glucuronidase (uidA) and DNA polymerase (dinB) were detected at 88.89% in the isolated E. coli strains. Interestingly, 81.48%, 85.19, 92.59%, and 100% of isolated E. coli strains expressed the genes encoding the enzymes tryptophan synthase subunit A (trpA), proline permease (putP), p-aminobenzoate synthase, and tryptophan synthase subunit B (trpB), respectively. The diversity of E. coli strains reflects the importance of regulatory mechanisms in the adaptation of bacteria to the gut microbiota.
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Mancabelli L, Milani C, Fontana F, Lugli GA, Tarracchini C, Turroni F, van Sinderen D, Ventura M. Mapping bacterial diversity and metabolic functionality of the human respiratory tract microbiome. J Oral Microbiol 2022; 14:2051336. [PMID: 35309410 PMCID: PMC8933033 DOI: 10.1080/20002297.2022.2051336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background The Human Respiratory Tract (HRT) is colonized by various microbial taxa, known as HRT microbiota, in a manner that is indicative of mutualistic interaction between such microorganisms and their host. Aim To investigate the microbial composition of the HRT and its possible correlation with the different compartments of the respiratory tract. Methods In the current study, we performed an in-depth meta‐analysis of 849 HRT samples from public shotgun metagenomic datasets obtained through several distinct collection methods. Results The statistical robustness provided by this meta-analysis allowed the identification of 13 possible HRT-specific Community State Types (CSTs), which appear to be specific to each anatomical region of the respiratory tract. Furthermore, functional characterization of the metagenomic datasets revealed specific microbial metabolic features correlating with the different compartments of the respiratory tract. Conclusion The meta-analysis here performed suggested that the variable presence of certain bacterial species seems to be linked to a location-related abundance gradient in the HRT and seems to be characterized by a specific microbial metabolic capability.
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Affiliation(s)
- Leonardo Mancabelli
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Christian Milani
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy.,Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
| | - Federico Fontana
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Gabriele Andrea Lugli
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Chiara Tarracchini
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Francesca Turroni
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy.,Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
| | - Douwe van Sinderen
- APC Microbiome Institute and School of Microbiology, Bioscience Institute, National University of Ireland, Cork, Ireland
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy.,Interdepartmental Research Centre "Microbiome Research Hub", University of Parma, Parma, Italy
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8
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de Sire A, de Sire R, Curci C, Castiglione F, Wahli W. Role of Dietary Supplements and Probiotics in Modulating Microbiota and Bone Health: The Gut-Bone Axis. Cells 2022; 11:cells11040743. [PMID: 35203401 PMCID: PMC8870226 DOI: 10.3390/cells11040743] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 02/04/2022] [Accepted: 02/09/2022] [Indexed: 02/04/2023] Open
Abstract
Osteoporosis is characterized by an alteration of bone microstructure with a decreased bone mineral density, leading to the incidence of fragility fractures. Around 200 million people are affected by osteoporosis, representing a major health burden worldwide. Several factors are involved in the pathogenesis of osteoporosis. Today, altered intestinal homeostasis is being investigated as a potential additional risk factor for reduced bone health and, therefore, as a novel potential therapeutic target. The intestinal microflora influences osteoclasts’ activity by regulating the serum levels of IGF-1, while also acting on the intestinal absorption of calcium. It is therefore not surprising that gut dysbiosis impacts bone health. Microbiota alterations affect the OPG/RANKL pathway in osteoclasts, and are correlated with reduced bone strength and quality. In this context, it has been hypothesized that dietary supplements, prebiotics, and probiotics contribute to the intestinal microecological balance that is important for bone health. The aim of the present comprehensive review is to describe the state of the art on the role of dietary supplements and probiotics as therapeutic agents for bone health regulation and osteoporosis, through gut microbiota modulation.
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Affiliation(s)
- Alessandro de Sire
- Physical Medicine and Rehabilitation Unit, Department of Medical and Surgical Sciences, University of Catanzaro “Magna Graecia”, 88100 Catanzaro, Italy
- Correspondence: (A.d.S.); (W.W.)
| | - Roberto de Sire
- Gastroenterology Unit, Department of Clinical Medicine and Surgery, University Federico II of Naples, 80126 Naples, Italy; (R.d.S.); (F.C.)
| | - Claudio Curci
- Physical Medicine and Rehabilitation Unit, Department of Neurosciences, ASST Carlo Poma, 46100 Mantova, Italy;
| | - Fabiana Castiglione
- Gastroenterology Unit, Department of Clinical Medicine and Surgery, University Federico II of Naples, 80126 Naples, Italy; (R.d.S.); (F.C.)
| | - Walter Wahli
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, Singapore 308232, Singapore
- Toxalim Research Center in Food Toxicology (UMR 1331), French National Research Institute for Agriculture, Food, and the Environment (INRAE), F-31300 Toulouse, France
- Center for Integrative Genomics, University of Lausanne, Le Génopode, CH-1015 Lausanne, Switzerland
- Correspondence: (A.d.S.); (W.W.)
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Anderson JL, Tierney AC, Miles C, Kotsimbos T, King SJ. PROBIOTIC USE IN ADULTS WITH CYSTIC FIBROSIS IS COMMON AND INFLUENCED BY GASTROINTESTINAL HEALTH NEEDS: A CROSS SECTIONAL SURVEY STUDY. J Hum Nutr Diet 2022; 35:444-454. [DOI: 10.1111/jhn.12991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 01/10/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Jacqueline L Anderson
- Department of Dietetics, Nutrition and Sport, School of Allied Health La Trobe University Victoria Australia
| | - Audrey C Tierney
- Department of Dietetics, Nutrition and Sport, School of Allied Health La Trobe University Victoria Australia
- School of Allied Health, Health Implementation Science and Technology Centre, Health Research Institute University of Limerick Limerick Ireland
| | - Caitlin Miles
- Nutrition and Dietetics Department, Monash Health Clayton Victoria Australia
| | - Tom Kotsimbos
- Cystic Fibrosis Service, Department of Allergy, Immunology and Respiratory Medicine, Alfred Health Melbourne Victoria Australia
- Department of Medicine Monash University Melbourne Australia
| | - Susannah J King
- Department of Dietetics, Nutrition and Sport, School of Allied Health La Trobe University Victoria Australia
- Cystic Fibrosis Service, Department of Allergy, Immunology and Respiratory Medicine, Alfred Health Melbourne Victoria Australia
- Nutrition Department Alfred Health Melbourne Victoria Australia
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Szigethy E, Tansel A, Pavlick AN, Marroquin MA, Serio CD, Silfee V, Wallace ML, Kingsley MJ, Levinthal DJ. A Coached Digital Cognitive Behavioral Intervention Reduces Anxiety and Depression in Adults With Functional Gastrointestinal Disorders. Clin Transl Gastroenterol 2021; 12:e00436. [PMID: 34874018 PMCID: PMC8751763 DOI: 10.14309/ctg.0000000000000436] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Traditional cognitive behavioral interventions (CBIs) improve mood and gastrointestinal symptom severity in patients with functional gastrointestinal disorders (FGIDs) but face substantial barriers to implementation. Integrating behavioral health technology into medical clinic workflows could overcome these barriers. We evaluated the feasibility and impact of a coached digital CBI (dCBI) as a first-line intervention in a prospective cohort of emotionally distressed patients with FGID. METHODS Patients with anxiety and/or depressive symptoms were offered a dCBI (an app called RxWell) during routine clinic visits. RxWell provides cognitive behavioral techniques enhanced by within-app text messaging with a health coach. Both gastroenterology and behavioral health-care providers electronically prescribed RxWell. We tracked patient interactions with RxWell, and patients completed anxiety (General Anxiety Disorder-7) and depression (Personal Health Questionniare Depression Scale) measures through the app. Our primary study outcome was the change in General Anxiety Disorder-7 and Personal Health Questionniare Depression Scale scores. RESULTS Of 364 patients with FGID (mean age 43 years [SD 16 years]; 73.1% women) prescribed the dCBI, 48.4% enrolled (median use, 3 techniques [interquartile range 1-14]). About half of RxWell enrollees communicated with health coaches. The mean baseline anxiety score was 11.4 (SD 5.5), and the depression score was 11.5 (SD 6.1). RxWell users experienced improvements in anxiety (mean change 2.71 [t = 3.7, df = 58; P < 0.001]) and depression (mean change 2.9 [t = 4.2, df = 45; P < 0.001]) at 4 months. DISCUSSION Patients with FGIDs and moderately severe anxiety and depressive symptoms are willing to use dCBI tools recommended by their providers. Our pilot data demonstrate that dCBI usage is associated with clinically and statistically significant mood symptom reductions.
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Affiliation(s)
- Eva Szigethy
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA;
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA;
| | - Aylin Tansel
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA;
| | - Alexa N. Pavlick
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA;
| | - Maria A. Marroquin
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA;
| | - Catherine D. Serio
- University of Pittsburgh Medical Center Insurance Services Division, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Valerie Silfee
- University of Pittsburgh Medical Center Insurance Services Division, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Meredith L. Wallace
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA;
| | - Michael J. Kingsley
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA;
| | - David J. Levinthal
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA;
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11
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Prokopidis K, Chambers E, Ni Lochlainn M, Witard OC. Mechanisms Linking the Gut-Muscle Axis With Muscle Protein Metabolism and Anabolic Resistance: Implications for Older Adults at Risk of Sarcopenia. Front Physiol 2021; 12:770455. [PMID: 34764887 PMCID: PMC8576575 DOI: 10.3389/fphys.2021.770455] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/07/2021] [Indexed: 12/13/2022] Open
Abstract
Aging is associated with a decline in skeletal muscle mass and function-termed sarcopenia-as mediated, in part, by muscle anabolic resistance. This metabolic phenomenon describes the impaired response of muscle protein synthesis (MPS) to the provision of dietary amino acids and practice of resistance-based exercise. Recent observations highlight the gut-muscle axis as a physiological target for combatting anabolic resistance and reducing risk of sarcopenia. Experimental studies, primarily conducted in animal models of aging, suggest a mechanistic link between the gut microbiota and muscle atrophy, mediated via the modulation of systemic amino acid availability and low-grade inflammation that are both physiological factors known to underpin anabolic resistance. Moreover, in vivo and in vitro studies demonstrate the action of specific gut bacteria (Lactobacillus and Bifidobacterium) to increase systemic amino acid availability and elicit an anti-inflammatory response in the intestinal lumen. Prospective lifestyle approaches that target the gut-muscle axis have recently been examined in the context of mitigating sarcopenia risk. These approaches include increasing dietary fiber intake that promotes the growth and development of gut bacteria, thus enhancing the production of short-chain fatty acids (SCFA) (acetate, propionate, and butyrate). Prebiotic/probiotic/symbiotic supplementation also generates SCFA and may mitigate low-grade inflammation in older adults via modulation of the gut microbiota. Preliminary evidence also highlights the role of exercise in increasing the production of SCFA. Accordingly, lifestyle approaches that combine diets rich in fiber and probiotic supplementation with exercise training may serve to produce SCFA and increase microbial diversity, and thus may target the gut-muscle axis in mitigating anabolic resistance in older adults. Future mechanistic studies are warranted to establish the direct physiological action of distinct gut microbiota phenotypes on amino acid utilization and the postprandial stimulation of muscle protein synthesis in older adults.
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Affiliation(s)
- Konstantinos Prokopidis
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Edward Chambers
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College, London, United Kingdom
| | - Mary Ni Lochlainn
- Department of Twin Research and Genetic Epidemiology, King’s College London, London, United Kingdom
| | - Oliver C. Witard
- Faculty of Life Sciences and Medicine, Centre for Human and Applied Physiological Sciences, King’s College London, London, United Kingdom
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12
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Beydoun S, Fardous AM, Saruna MM, Beydoun AG, Sorge JA, Ma H, Aoun G, Unnikrishnan A, Cabelof DC, Heydari AR. Succinylsulfathiazole modulates the mTOR signaling pathway in the liver of c57BL/6 mice via a folate independent mechanism. Exp Gerontol 2021; 150:111387. [PMID: 33957263 PMCID: PMC8165018 DOI: 10.1016/j.exger.2021.111387] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/25/2021] [Accepted: 04/28/2021] [Indexed: 01/27/2023]
Abstract
Researchers studying the effect of folate restriction on rodents have resorted to the use of the antibiotic succinylsulfathiazole (SST) in the folate depleted diet to induce a folate deficient status. SST has been used extensively in rodent studies since the 1940s. Its localized effect on the gut bacteria as well as its effectiveness in reducing folate producing species is well documented. The possible overlap between the pathways affected by folate depletion and SST could potentially produce a confounding variable in such studies. In our novel study, we analyzed the effect of SST on folate levels in c57Bl/6 male mice fed folate supplemented and deficient diets. We did not observe any significant difference on growth and weight gain at 21 weeks. SST did not significantly affect folate levels in the plasma, liver and colon tissues; however, it did alter energy metabolism and expression of key genes in the mTOR signaling pathway in the liver. This research sheds light on a possible confounding element when using SST to study folate depletion due to the potential overlap with multiple critical pathways such as mTOR. SUMMARY: The antibiotic succinylsulfathiazole (SST) is used to reduce folate producing bacteria in rodent folate depletion studies. SST can modulate critical energy and nutrient sensing pathways converging onto mTOR signaling, and potentially confounding cancer studies.
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Affiliation(s)
- Safa Beydoun
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA; Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ali M Fardous
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA
| | - Michael M Saruna
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA
| | - Ali G Beydoun
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA
| | - Johnathan A Sorge
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA
| | - Hongzhi Ma
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA
| | - Ghada Aoun
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA
| | - Archana Unnikrishnan
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health and Science Center, OK 73104, USA
| | - Diane C Cabelof
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA; Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, MI 48202, USA
| | - Ahmad R Heydari
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA; Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, MI 48202, USA.
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13
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Nardone OM, de Sire R, Petito V, Testa A, Villani G, Scaldaferri F, Castiglione F. Inflammatory Bowel Diseases and Sarcopenia: The Role of Inflammation and Gut Microbiota in the Development of Muscle Failure. Front Immunol 2021; 12:694217. [PMID: 34326845 PMCID: PMC8313891 DOI: 10.3389/fimmu.2021.694217] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/28/2021] [Indexed: 12/13/2022] Open
Abstract
Sarcopenia represents a major health burden in industrialized country by reducing substantially the quality of life. Indeed, it is characterized by a progressive and generalized loss of muscle mass and function, leading to an increased risk of adverse outcomes and hospitalizations. Several factors are involved in the pathogenesis of sarcopenia, such as aging, inflammation, mitochondrial dysfunction, and insulin resistance. Recently, it has been reported that more than one third of inflammatory bowel disease (IBD) patients suffered from sarcopenia. Notably, the role of gut microbiota (GM) in developing muscle failure in IBD patient is a matter of increasing interest. It has been hypothesized that gut dysbiosis, that typically characterizes IBD, might alter the immune response and host metabolism, promoting a low-grade inflammation status able to up-regulate several molecular pathways related to sarcopenia. Therefore, we aim to describe the basis of IBD-related sarcopenia and provide the rationale for new potential therapeutic targets that may regulate the gut-muscle axis in IBD patients.
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Affiliation(s)
- Olga Maria Nardone
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Roberto de Sire
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Valentina Petito
- Department of Medicine and Translational Surgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, University Cattolica del Sacro Cuore, Rome, Italy
| | - Anna Testa
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Guido Villani
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Franco Scaldaferri
- Department of Medicine and Translational Surgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, University Cattolica del Sacro Cuore, Rome, Italy
| | - Fabiana Castiglione
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
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14
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de Marco Castro E, Murphy CH, Roche HM. Targeting the Gut Microbiota to Improve Dietary Protein Efficacy to Mitigate Sarcopenia. Front Nutr 2021; 8:656730. [PMID: 34235167 PMCID: PMC8256992 DOI: 10.3389/fnut.2021.656730] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/24/2021] [Indexed: 12/11/2022] Open
Abstract
Sarcopenia is characterised by the presence of diminished skeletal muscle mass and strength. It is relatively common in older adults as ageing is associated with anabolic resistance (a blunted muscle protein synthesis response to dietary protein consumption and resistance exercise). Therefore, interventions to counteract anabolic resistance may benefit sarcopenia prevention and are of utmost importance in the present ageing population. There is growing speculation that the gut microbiota may contribute to sarcopenia, as ageing is also associated with [1) dysbiosis, whereby the gut microbiota becomes less diverse, lacking in healthy butyrate-producing microorganisms and higher in pathogenic bacteria, and [2) loss of epithelial tight junction integrity in the lining of the gut, leading to increased gut permeability and higher metabolic endotoxemia. Animal data suggest that both elements may impact muscle physiology, but human data corroborating the causality of the association between gut microbiota and muscle mass and strength are lacking. Mechanisms wherein the gut microbiota may alter anabolic resistance include an attenuation of gut-derived low-grade inflammation and/or the increased digestibility of protein-containing foods and consequent higher aminoacidemia, both in favour of muscle protein synthesis. This review focuses on the putative links between the gut microbiota and skeletal muscle in the context of sarcopenia. We also address the issue of plant protein digestibility because plant proteins are increasingly important from an environmental sustainability perspective, yet they are less efficient at stimulating muscle protein synthesis than animal proteins.
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Affiliation(s)
- Elena de Marco Castro
- Nutrigenomics Research Group, School of Public Health, Physiotherapy, and Sports Science, UCD Conway Institute, UCD Institute of Food and Health, University College Dublin, Dublin, Ireland
| | - Caoileann H Murphy
- Nutrigenomics Research Group, School of Public Health, Physiotherapy, and Sports Science, UCD Conway Institute, UCD Institute of Food and Health, University College Dublin, Dublin, Ireland.,Teagasc Food Research Centre, Ashtown, Dublin, Ireland
| | - Helen M Roche
- Nutrigenomics Research Group, School of Public Health, Physiotherapy, and Sports Science, UCD Conway Institute, UCD Institute of Food and Health, University College Dublin, Dublin, Ireland.,Institute for Global Food Security, Queen's University Belfast, Belfast, United Kingdom
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15
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Ankri S. Entamoeba histolytica-Gut Microbiota Interaction: More Than Meets the Eye. Microorganisms 2021; 9:microorganisms9030581. [PMID: 33809056 PMCID: PMC7998739 DOI: 10.3390/microorganisms9030581] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/05/2021] [Accepted: 03/10/2021] [Indexed: 12/16/2022] Open
Abstract
Amebiasis is a disease caused by the unicellular parasite Entamoeba histolytica. In most cases, the infection is asymptomatic but when symptomatic, the infection can cause dysentery and invasive extraintestinal complications. In the gut, E. histolytica feeds on bacteria. Increasing evidences support the role of the gut microbiota in the development of the disease. In this review we will discuss the consequences of E. histolytica infection on the gut microbiota. We will also discuss new evidences about the role of gut microbiota in regulating the resistance of the parasite to oxidative stress and its virulence.
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Affiliation(s)
- Serge Ankri
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, Haifa 31096, Israel
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16
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Schelkle B, Galland Q. Microbiome Research: Open Communication Today, Microbiome Applications in the Future. Microorganisms 2020; 8:E1960. [PMID: 33322055 PMCID: PMC7763060 DOI: 10.3390/microorganisms8121960] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/27/2020] [Accepted: 12/08/2020] [Indexed: 11/16/2022] Open
Abstract
Microbiome research has recently gained centre-stage in both basic science and translational applications, yet researchers often feel that public communication about its potential overpromises. This manuscript aims to share a perspective on how scientists can engage in more open, ethical and transparent communication using an ongoing research project on food systems microbiomes as a case study. Concrete examples of strategically planned communication efforts are outlined, which aim to inspire and empower other researchers. Finally, we conclude with a discussion on the benefits of open and transparent communication from early-on in innovation pathways, mainly increasing trust in scientific processes and thus paving the way to achieving societal milestones such as the UN Sustainable Development Goals and the EU Green Deal.
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Affiliation(s)
- Bettina Schelkle
- European Food Information Council, Rue des Deux Eglises 14, 1000 Brussels, Belgium
| | - Quentin Galland
- Hague Corporate Affairs, Rue Belliard 40, 1040 Brussels, Belgium;
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17
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Abstract
PURPOSE OF REVIEW This review focuses on recent evidence examining the role gut microbiota play in coronary heart disease. It also provides a succinct overview of current and future therapies targeting the gut microbiota for coronary heart disease risk reduction. RECENT FINDINGS A consensus has been reached that differences exist in the gut microbiotas of patients with coronary heart disease. Studies have shown that the gut microbiota is associated with obesity, diabetes, dyslipidemia, and hypertension, which are risk factors for coronary heart disease. The gut microbiota is involved in mediating basic metabolic processes, such as cholesterol metabolism, uric acid metabolism, oxidative stress, and inflammatory reactions, through its metabolites, which can induce the development of atherosclerosis and coronary heart disease. Interfering with the composition of gut microbiota, supplementing probiotics, and fecal donation are active areas of research to potentially prevent and treat coronary heart disease. Gut microbiota are causally associated with coronary heart disease. We analyzed the gut microbiota's effects on risk factors for coronary heart disease and studied the effects of gut microbiota metabolites on coronary heart disease. Gut microbiota is a potential target for preventing and treating coronary heart disease.
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18
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Chrzastek Z, Guligowska A, Piglowska M, Soltysik B, Kostka T. Association between sucrose and fiber intake and symptoms of depression in older people. Nutr Neurosci 2020; 25:886-897. [PMID: 32945734 DOI: 10.1080/1028415x.2020.1819106] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Objectives: This study aimed to analyze the relationship between sucrose and fiber intake and symptoms of depression in older people.Material and Methods: The research group consisted of 813 community-dwelling subjects (221 males and 592 females, median age 75). The symptoms of depression were assessed using the Geriatric Depression Scale (GDS). Participants were divided into two subgroups according to the GDS scale. Group A: 0-5 points - no symptoms of depression (612, M:167, W:445), and group B: 6-15 points - with symptoms of depression (201, M:54, W:147). The level of nutrient consumption was assessed with a 24 h Recall Questionnaire and the software 'Dieta 5.0'.Results: In males, consumption of sucrose (A: 30 g (18.1-53.3), B: 62.8 g (43.2-92.6)) (median (25%-75% quartile) and % of energy from sucrose (A: 7.3% (4.8-11.9), B: 13.5% (7.8-18.6)) were significantly higher in the group with symptoms of depression. Kilocalories per 1 g of fiber intake ratios were higher in depressive groups of both males (A: 89.1 kcal/g (68.1-109), B: 103.9 kcal/g (86.1-134.1)) and females (A: 78.6 kcal/g (62.1-99.9), B: 93 kcal/g (67.1-118.3)). Females without symptoms of depression consumed significantly more fiber (17.2 g (12.9-23.1)) than females with symptoms of depression (16.1 g (11.3-20)).Conclusions: This analysis shows increased kilocalories per 1 g of fiber intake in patients with symptoms of depression. In males, symptoms of depression were connected with higher consumption of sucrose and higher % of energy intake from sucrose. In females, greater fiber consumption was related to less frequent symptoms of depression.
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Affiliation(s)
- Zuzanna Chrzastek
- Department of Geriatrics Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland
| | - Agnieszka Guligowska
- Department of Geriatrics Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland
| | - Malgorzata Piglowska
- Department of Geriatrics Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland
| | - Bartlomiej Soltysik
- Department of Geriatrics Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland
| | - Tomasz Kostka
- Department of Geriatrics Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland
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19
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Longhi G, van Sinderen D, Ventura M, Turroni F. Microbiota and Cancer: The Emerging Beneficial Role of Bifidobacteria in Cancer Immunotherapy. Front Microbiol 2020; 11:575072. [PMID: 33013813 PMCID: PMC7507897 DOI: 10.3389/fmicb.2020.575072] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/17/2020] [Indexed: 12/15/2022] Open
Abstract
Many intestinal bacteria are believed to be involved in various inflammatory and immune processes that influence tumor etiology because of their metabolic properties and their ability to alter the microbiota homeostasis. Although many functions of the microbiota are still unclear, there is compelling experimental evidence showing that the intestinal microbiota is able to modulate carcinogenesis and the response to anticancer therapies, both in the intestinal tract and other body sites. Among the wide variety of gut-colonizing microorganisms, various species belonging to the Bifidobacterium genus are believed to elicit beneficial effects on human physiology and on the host-immune system. Recent findings, based on preclinical mouse models and on human clinical trials, have demonstrated the impact of gut commensals including bifidobacteria on the efficacy of tumor-targeting immunotherapy. Although the underlying molecular mechanisms remain obscure, bifidobacteria and other microorganisms have become a promising aid to immunotherapeutic procedures that are currently applied to treat cancer. The present review focuses on strategies to recruit the microbiome in order to enhance anticancer responses and develop therapies aimed at fighting the onset and progression of malignancies.
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Affiliation(s)
- Giulia Longhi
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Douwe van Sinderen
- Alimentary Pharmabotic Centre (APC) Microbiome Institute and School of Microbiology, Bioscience Institute, National University of Ireland, Cork, Ireland
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy.,Microbiome Research Hub, University of Parma, Parma, Italy
| | - Francesca Turroni
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy.,Microbiome Research Hub, University of Parma, Parma, Italy
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20
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Tang W, Han S, Zhou J, Xu Q, Dong M, Fan X, Rui X, Zhang Q, Chen X, Jiang M, Wu J, Li W. Selective fermentation of Lactobacillus delbrueckii ssp. Bulgaricus SRFM-1 derived exopolysaccharide by Lactobacillus and Streptococcus strains revealed prebiotic properties. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103952] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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21
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Gonzalez-Freire M, Diaz-Ruiz A, Hauser D, Martinez-Romero J, Ferrucci L, Bernier M, de Cabo R. The road ahead for health and lifespan interventions. Ageing Res Rev 2020; 59:101037. [PMID: 32109604 DOI: 10.1016/j.arr.2020.101037] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/21/2020] [Accepted: 02/23/2020] [Indexed: 12/20/2022]
Abstract
Aging is a modifiable risk factor for most chronic diseases and an inevitable process in humans. The development of pharmacological interventions aimed at delaying or preventing the onset of chronic conditions and other age-related diseases has been at the forefront of the aging field. Preclinical findings have demonstrated that species, sex and strain confer significant heterogeneity on reaching the desired health- and lifespan-promoting pharmacological responses in model organisms. Translating the safety and efficacy of these interventions to humans and the lack of reliable biomarkers that serve as predictors of health outcomes remain a challenge. Here, we will survey current pharmacological interventions that promote lifespan extension and/or increased healthspan in animals and humans, and review the various anti-aging interventions selected for inclusion in the NIA's Interventions Testing Program as well as the ClinicalTrials.gov database that target aging or age-related diseases in humans.
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Affiliation(s)
- Marta Gonzalez-Freire
- Translational Gerontology Branch, Biomedical Research Center, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, 21224, USA; Cardiovascular and Metabolic Diseases Group, Fundació Institut d'Investigació Sanitària Illes Balears (IdISBa), Palma de Mallorca, Spain.
| | - Alberto Diaz-Ruiz
- Translational Gerontology Branch, Biomedical Research Center, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, 21224, USA; Nutritional Interventions Group, Precision Nutrition and Aging, Madrid Institute for Advanced Studies - IMDEA Food, CEI UAM+CSIC, Madrid, Spain
| | - David Hauser
- Translational Gerontology Branch, Biomedical Research Center, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, 21224, USA
| | - Jorge Martinez-Romero
- Molecular Oncology and Nutritional Genomics of Cancer Group, Precision Nutrition and Cancer Program, IMDEA Food, CEI, UAM/CSIC, Madrid, Spain
| | - Luigi Ferrucci
- Translational Gerontology Branch, Biomedical Research Center, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, 21224, USA
| | - Michel Bernier
- Translational Gerontology Branch, Biomedical Research Center, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, 21224, USA
| | - Rafael de Cabo
- Translational Gerontology Branch, Biomedical Research Center, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, 21224, USA
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22
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Gut-Joint Axis: The Role of Physical Exercise on Gut Microbiota Modulation in Older People with Osteoarthritis. Nutrients 2020; 12:nu12020574. [PMID: 32098380 PMCID: PMC7071456 DOI: 10.3390/nu12020574] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 02/19/2020] [Accepted: 02/21/2020] [Indexed: 02/07/2023] Open
Abstract
Osteoarthritis (OA) is considered one of the most common joint disorders worldwide and its prevalence is constantly increasing due to the global longevity and changes in eating habits and lifestyle. In this context, the role of gut microbiota (GM) in the pathogenesis of OA is still unclear. Perturbation of GM biodiversity and function, defined as ‘gut dysbiosis’, might be involved in the development of inflammaging, one of the main risk factors of OA development. It is well known that physical exercise could play a key role in the prevention and treatment of several chronic diseases including OA, and it is recommended by several guidelines as a first line intervention. Several studies have shown that physical exercise could modulate GM composition, boosting intestinal mucosal immunity, increasing the Bacteroidetes–Firmicutes ratio, modifying the bile acid profile, and improving the production of short chain fatty acids. Moreover, it has been shown that low intensity exercise might reduce the risk of gastrointestinal diseases, confirming the hypothesis of a strict correlation between skeletal muscle and GM. However, up to date, there is still a lack of clinical trials focusing on this research field. Therefore, in this narrative, we aimed to summarize the state-of-the-art of the literature regarding the correlation between these conditions, supporting the hypothesis of a ‘gut–joint axis’ and highlighting the role of physical exercise combined with adequate diet and probiotic supplements in rebalancing microbial dysbiosis.
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23
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Rossi M. Nutrition: an old science in a new microbial light. J Hum Nutr Diet 2019; 32:689-692. [PMID: 31663204 DOI: 10.1111/jhn.12705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M Rossi
- Department of Nutritional Sciences, King's College London, London, UK
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24
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Affiliation(s)
- M. Rossi
- Department of Nutritional Sciences King's College London London UK
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25
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Pilipenko VI, Isakov VA, Morozov SV, Vlasova AV, Naydenova MA. [Association of food patterns with different forms of small intestinal bacterial overgroth syndrome and treatment efficacy]. TERAPEVT ARKH 2019; 91:82-90. [PMID: 32598636 DOI: 10.26442/00403660.2019.10.000496] [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: 04/16/2020] [Indexed: 02/07/2023]
Abstract
AIM To assess food patterns in patients with different types of SIBO and their impact onto the course and treatment outcomes. MATERIALS AND METHODS The data of 988 patients who signed informed consent surved as a source data. On the basis of lactulose breath test (LBT; GastroCH4eck, Bedfont, UK), the patients were selected into one of the studied groups: SIBO-H2, SIBO-CH4, SIBO-CH4-H2 and control. Twenty - four hours food recall test was used to analyze nutritional habits. In patients with SIBO-H2, standard treatment with Tilichinol 100 mg/Tilbrochinol 200 mg (Intetrix, Beaufour-Ipsen International, France) 2 caps BID for 10 days) was provided. Efficacy of treatment was assessed on the bass of the result of LBT 2 month after treatment completion. Mann-Whitney T test (Statistica 10, StatSoft, USA) was used to compare nutritional patterns in patients with or without SIBO, in different types of SIBO and in accordance to the results of treatment. RESULTS AND DISCUSSION Nine hundred eighty eight patients were enrolled. On the basis of hydrogene breath test they were divided into 4 main groups: SIBO of hydrogen - producing flora (SIBO-H2, n=526), methane - producing flora (SIBO-CH4, n=129), SIBO with hyperproduction of methane and hydrogene (SIBO-CH4-H2, n=225). The control group consisted of 108 patients with no no excessive gas production on LBT. In contrast to controls, nutritional patterns of patients with SIBO were characterized by low dietary fiber and amount of red meat dishes in the rations. Those with SIBO-CH4 consumed more fruits (p=0.03), vegetables (p=0.003), and fish (p=0.026), compared to those with other variants of SIBO and the control group. Nutritional patterns of SIBO-H2 group were characterized by larger amount of poultry meat consumption (p=0.026) compared to other SIBO groups and controls. In SIBO-H2 "cured" group greater amounts of buckwheat (p.
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Affiliation(s)
- V I Pilipenko
- Federal Research Centre of Nutrition and Biotechnology
| | - V A Isakov
- Federal Research Centre of Nutrition and Biotechnology
| | - S V Morozov
- Federal Research Centre of Nutrition and Biotechnology
| | - A V Vlasova
- Federal Research Centre of Nutrition and Biotechnology
| | - M A Naydenova
- Federal Research Centre of Nutrition and Biotechnology
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26
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Ticinesi A, Nouvenne A, Tana C, Prati B, Cerundolo N, Miraglia C, De' Angelis GL, Di Mario F, Meschi T. The impact of intestinal microbiota on bio-medical research: definitions, techniques and physiology of a "new frontier". ACTA BIO-MEDICA : ATENEI PARMENSIS 2018; 89:52-59. [PMID: 30561396 PMCID: PMC6502191 DOI: 10.23750/abm.v89i9-s.7906] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Indexed: 12/19/2022]
Abstract
In recent years the metagenomics techniques have allowed to study composition and function of the intestinal microbiota. The microbiota is a new frontier of biomedical research to be explored and there is growing evidence of its fundamental health-promoting activity. The present review gives a synthetic overview on the characteristics and the role of the microbiota in the adult with particular reference to physiology, pathophysiology and relationships with the host and the environment.
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Affiliation(s)
- Andrea Ticinesi
- Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma.
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Ticinesi A, Tana C, Nouvenne A, Prati B, Lauretani F, Meschi T. Gut microbiota, cognitive frailty and dementia in older individuals: a systematic review. Clin Interv Aging 2018; 13:1497-1511. [PMID: 30214170 PMCID: PMC6120508 DOI: 10.2147/cia.s139163] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Cognitive frailty, defined as the coexistence of mild cognitive impairment symptoms and physical frailty phenotype in older persons, is increasingly considered the main geriatric condition predisposing to dementia. Recent studies have demonstrated that gut microbiota may be involved in frailty physiopathology by promoting chronic inflammation and anabolic resistance. The contribution of gut microbiota to the development of cognitive impairment and dementia is less defined, even though the concept of "gut-brain axis" has been well demonstrated for other neuropsychiatric disorders. The aim of this systematic review was to summarize the current state-of-the-art literature on the gut microbiota alterations associated with cognitive frailty, mild cognitive impairment and dementia and elucidate the effects of pre- or probiotic administration on cognitive symptom modulation in animal models of aging and human beings. We identified 47 papers with original data (31 from animal studies and 16 from human studies) suitable for inclusion according to our aims. We concluded that several observational and intervention studies performed in animal models of dementia (mainly Alzheimer's disease) support the concept of a gut-brain regulation of cognitive symptoms. Modulation of vagal activity and bacterial synthesis of substances active on host neural metabolism, inflammation and amyloid deposition are the main mechanisms involved in this physiopathologic link. Conversely, there is a substantial lack of human data, both from observational and intervention studies, preventing to formulate any clinical recommendation on this topic. Gut microbiota modulation of cognitive function represents, however, a promising area of research for identifying novel preventive and treatment strategies against dementia.
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Affiliation(s)
- Andrea Ticinesi
- Department of Medicine and Surgery, University of Parma, Parma, Italy,
- Geriatric-Rehabilitation Department, Parma University Hospital, Parma, Italy,
- Microbiome Research Hub, University of Parma, Parma, Italy,
| | - Claudio Tana
- Geriatric-Rehabilitation Department, Parma University Hospital, Parma, Italy,
| | - Antonio Nouvenne
- Geriatric-Rehabilitation Department, Parma University Hospital, Parma, Italy,
- Microbiome Research Hub, University of Parma, Parma, Italy,
| | - Beatrice Prati
- Geriatric-Rehabilitation Department, Parma University Hospital, Parma, Italy,
| | - Fulvio Lauretani
- Geriatric-Rehabilitation Department, Parma University Hospital, Parma, Italy,
| | - Tiziana Meschi
- Department of Medicine and Surgery, University of Parma, Parma, Italy,
- Geriatric-Rehabilitation Department, Parma University Hospital, Parma, Italy,
- Microbiome Research Hub, University of Parma, Parma, Italy,
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28
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Kwon MS, Lim SK, Jang JY, Lee J, Park HK, Kim N, Yun M, Shin MY, Jo HE, Oh YJ, Roh SW, Choi HJ. Lactobacillus sakei WIKIM30 Ameliorates Atopic Dermatitis-Like Skin Lesions by Inducing Regulatory T Cells and Altering Gut Microbiota Structure in Mice. Front Immunol 2018; 9:1905. [PMID: 30154801 PMCID: PMC6102352 DOI: 10.3389/fimmu.2018.01905] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 08/01/2018] [Indexed: 12/16/2022] Open
Abstract
Lactobacillus sakei WIKIM30 is a Gram-positive facultative anaerobic bacterium isolated from kimchi, a Korean fermented vegetable food. In this study, we found that WIKIM30 promoted regulatory T cell (Treg) differentiation by inducing dendritic cells with tolerogenic properties. The production of the T helper (Th) 2-associated cytokine interleukin (IL)-4 was decreased, but that of the Treg-associated cytokine IL-10 was increased in splenocytes from ovalbumin-sensitized mice treated with WIKIM30. We also investigated the inhibitory capacity of WIKIM30 on the development of 2,4-dinitrochlorobenzene-induced atopic dermatitis (AD), a Th2-dominant allergic disease in mice. Oral administration of L. sakei WIKIM30 significantly reduced AD-like skin lesions and serum immunoglobulin E and IL-4 levels while decreasing the number of CD4+ T cells and B cells and the levels of Th2 cytokines (IL-4, IL-5, and IL-13) in peripheral lymph nodes and enhancing Treg differentiation and IL-10 secretion in mesenteric lymph nodes. In addition, WIKIM30 modulated gut microbiome profiles that were altered in AD mice, which showed increases in Arthromitus and Ralstonia and a decrease in Ruminococcus abundance. These changes were reversed by WIKIM30 treatment. Notably, the increase in Ruminococcus was highly correlated with Treg-related responses and may contribute to the alleviation of AD responses. Together, these results suggest that oral administration of L. sakei WIKIM30 modulates allergic Th2 responses enhancing Treg generation and increases the relative abundance of intestinal bacteria that are positively related to Treg generation, and therefore has therapeutic potential for the treatment of AD.
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Affiliation(s)
- Min-Sung Kwon
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea
| | - Seul Ki Lim
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea
| | - Ja-Young Jang
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea
| | - Jieun Lee
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea
| | - Hyo Kyeong Park
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea
| | - Namhee Kim
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea
| | - Misun Yun
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea
| | - Mi-Young Shin
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea.,Division of Animal Science, Chonnam National University, Gwangju, South Korea
| | - Hee Eun Jo
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea.,Division of Animal Science, Chonnam National University, Gwangju, South Korea
| | - Young Joon Oh
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea
| | - Seong Woon Roh
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea
| | - Hak-Jong Choi
- Microbiology and Functionality Research Group, World Institute of Kimchi, Gwangju, South Korea
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29
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A critical review on the health promoting effects of mushrooms nutraceuticals. FOOD SCIENCE AND HUMAN WELLNESS 2018. [DOI: 10.1016/j.fshw.2018.05.002] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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30
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Harnessing the Power of Microbiome Assessment Tools as Part of Neuroprotective Nutrition and Lifestyle Medicine Interventions. Microorganisms 2018; 6:microorganisms6020035. [PMID: 29693607 PMCID: PMC6027349 DOI: 10.3390/microorganisms6020035] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 04/02/2018] [Accepted: 04/20/2018] [Indexed: 12/11/2022] Open
Abstract
An extensive body of evidence documents the importance of the gut microbiome both in health and in a variety of human diseases. Cell and animal studies describing this relationship abound, whilst clinical studies exploring the associations between changes in gut microbiota and the corresponding metabolites with neurodegeneration in the human brain have only begun to emerge more recently. Further, the findings of such studies are often difficult to translate into simple clinical applications that result in measurable health outcomes. The purpose of this paper is to appraise the literature on a select set of faecal biomarkers from a clinician’s perspective. This practical review aims to examine key physiological processes that influence both gastrointestinal, as well as brain health, and to discuss how tools such as the characterisation of commensal bacteria, the identification of potential opportunistic, pathogenic and parasitic organisms and the quantification of gut microbiome biomarkers and metabolites can help inform clinical decisions of nutrition and lifestyle medicine practitioners.
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31
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Ticinesi A, Lauretani F, Milani C, Nouvenne A, Tana C, Del Rio D, Maggio M, Ventura M, Meschi T. Aging Gut Microbiota at the Cross-Road between Nutrition, Physical Frailty, and Sarcopenia: Is There a Gut-Muscle Axis? Nutrients 2017; 9:nu9121303. [PMID: 29189738 PMCID: PMC5748753 DOI: 10.3390/nu9121303] [Citation(s) in RCA: 190] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 11/22/2017] [Accepted: 11/27/2017] [Indexed: 02/06/2023] Open
Abstract
Inadequate nutrition and physical inactivity are the mainstays of primary sarcopenia-physiopathology in older individuals. Gut microbiota composition is strongly dependent on both of these elements, and conversely, can also influence the host physiology by modulating systemic inflammation, anabolism, insulin sensitivity, and energy production. The bacterial metabolism of nutrients theoretically influences skeletal muscle cell functionality through producing mediators that drive all of these systemic effects. In this study, we review the scientific literature supporting the concept of the involvement of gut microbiota in primary sarcopenia physiopathology. First, we examine studies associating fecal microbiota alterations with physical frailty, i.e., the loss of muscle performance and normal muscle mass. Then, we consider studies exploring the effects of exercise on gut microbiota composition. Finally, we examine studies demonstrating the possible effects of mediators produced by gut microbiota on skeletal muscle, and intervention studies considering the effects of prebiotic or probiotic administration on muscle function. Even if there is no evidence of a distinct gut microbiota composition in older sarcopenic patients, we conclude that the literature supports the possible presence of a "gut-muscle axis", whereby gut microbiota may act as the mediator of the effects of nutrition on muscle cells.
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Affiliation(s)
- Andrea Ticinesi
- Microbiome Research Hub, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy.
- Department of Medicine and Surgery, University of Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
- Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
| | - Fulvio Lauretani
- Department of Medicine and Surgery, University of Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
- Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
| | - Christian Milani
- Microbiome Research Hub, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy.
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy.
| | - Antonio Nouvenne
- Microbiome Research Hub, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy.
- Department of Medicine and Surgery, University of Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
- Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
| | - Claudio Tana
- Department of Medicine and Surgery, University of Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
- Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
| | - Daniele Del Rio
- Microbiome Research Hub, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy.
- Laboratory of Phytochemicals in Physiology, Department of Food and Drug Science, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Marcello Maggio
- Department of Medicine and Surgery, University of Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
- Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
| | - Marco Ventura
- Microbiome Research Hub, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy.
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy.
| | - Tiziana Meschi
- Microbiome Research Hub, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy.
- Department of Medicine and Surgery, University of Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
- Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Via Antonio Gramsci 14, 43126 Parma, Italy.
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32
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Ferrario C, Statello R, Carnevali L, Mancabelli L, Milani C, Mangifesta M, Duranti S, Lugli GA, Jimenez B, Lodge S, Viappiani A, Alessandri G, Dall'Asta M, Del Rio D, Sgoifo A, van Sinderen D, Ventura M, Turroni F. How to Feed the Mammalian Gut Microbiota: Bacterial and Metabolic Modulation by Dietary Fibers. Front Microbiol 2017; 8:1749. [PMID: 28955319 PMCID: PMC5600934 DOI: 10.3389/fmicb.2017.01749] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 08/28/2017] [Indexed: 12/19/2022] Open
Abstract
The composition of the gut microbiota of mammals is greatly influenced by diet. Therefore, evaluation of different food ingredients that may promote changes in the gut microbiota composition is an attractive approach to treat microbiota disturbances. In this study, three dietary fibers, such as inulin (I, 10%), resistant starch (RS, 10%), and citrus pectin (3%), were employed as supplements to normal chow diet of adult male rats for 2 weeks. Fecal microbiota composition and corresponding metabolite profiles were assessed before and after prebiotics supplementation. A general increase in the Bacteroidetes phylum was detected with a concurrent reduction in Firmicutes, in particular for I and RS experiments, while additional changes in the microbiota composition were evident at lower taxonomic levels for all the three substrates. Such modifications in the microbiota composition were correlated with changes in metabolic profiles of animals, in particular changes in acetate and succinate levels. This study represents a first attempt to modulate selectively the abundance and/or metabolic activity of various members of the gut microbiota by means of dietary fiber.
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Affiliation(s)
- Chiara Ferrario
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
| | - Rosario Statello
- Stress Physiology Laboratory, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
| | - Luca Carnevali
- Stress Physiology Laboratory, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
| | - Leonardo Mancabelli
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
| | - Christian Milani
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
| | | | - Sabrina Duranti
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
| | - Gabriele A Lugli
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
| | - Beatriz Jimenez
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College LondonLondon, United Kingdom
| | - Samantha Lodge
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College LondonLondon, United Kingdom
| | | | - Giulia Alessandri
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
| | | | - Daniele Del Rio
- Department of Food and Drug, University of ParmaParma, Italy
| | - Andrea Sgoifo
- Stress Physiology Laboratory, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
| | - Douwe van Sinderen
- APC Microbiome Institute and School of Microbiology, National University of IrelandCork, Ireland
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
| | - Francesca Turroni
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of ParmaParma, Italy
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33
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Ticinesi A, Milani C, Lauretani F, Nouvenne A, Mancabelli L, Lugli GA, Turroni F, Duranti S, Mangifesta M, Viappiani A, Ferrario C, Maggio M, Ventura M, Meschi T. Gut microbiota composition is associated with polypharmacy in elderly hospitalized patients. Sci Rep 2017; 7:11102. [PMID: 28894183 PMCID: PMC5593887 DOI: 10.1038/s41598-017-10734-y] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 08/14/2017] [Indexed: 02/07/2023] Open
Abstract
Reduced biodiversity and increased representation of opportunistic pathogens are typical features of gut microbiota composition in aging. Few studies have investigated their correlation with polypharmacy, multimorbidity and frailty. To assess it, we analyzed the fecal microbiota from 76 inpatients, aged 83 ± 8. Microbiome biodiversity (Chao1 index) and relative abundance of individual bacterial taxa were determined by next-generation 16S rRNA microbial profiling. Their correlation with number of drugs, and indexes of multimorbidity and frailty were verified using multivariate linear regression models. The impact of gut microbiota biodiversity on mortality, rehospitalizations and incident sepsis was also assessed after a 2-year follow-up, using Cox regression analysis. We found a significant negative correlation between the number of drugs and Chao1 Index at multivariate analysis. The number of drugs was associated with the average relative abundance of 15 taxa. The drug classes exhibiting the strongest association with single taxa abundance were proton pump inhibitors, antidepressants and antipsychotics. Conversely, frailty and multimorbidity were not significantly associated with gut microbiota biodiversity. Very low Chao1 index was also a significant predictor of mortality, but not of rehospitalizations and sepsis, at follow-up. In aging, polypharmacy may thus represent a determinant of gut microbiota composition, with detrimental clinical consequences.
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Affiliation(s)
- Andrea Ticinesi
- Department of Medicine and Surgery, University of Parma, Parma, Italy. .,Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy.
| | - Christian Milani
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Fulvio Lauretani
- Department of Medicine and Surgery, University of Parma, Parma, Italy.,Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Antonio Nouvenne
- Department of Medicine and Surgery, University of Parma, Parma, Italy.,Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Leonardo Mancabelli
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Gabriele Andrea Lugli
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Francesca Turroni
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Sabrina Duranti
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Marta Mangifesta
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | | | - Chiara Ferrario
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Marcello Maggio
- Department of Medicine and Surgery, University of Parma, Parma, Italy.,Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Tiziana Meschi
- Department of Medicine and Surgery, University of Parma, Parma, Italy.,Dipartimento Medico-Geriatrico-Riabilitativo, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
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34
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Memba R, Duggan SN, Ni Chonchubhair HM, Griffin OM, Bashir Y, O'Connor DB, Murphy A, McMahon J, Volcov Y, Ryan BM, Conlon KC. The potential role of gut microbiota in pancreatic disease: A systematic review. Pancreatology 2017; 17:867-874. [PMID: 28935288 DOI: 10.1016/j.pan.2017.09.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 09/04/2017] [Accepted: 09/05/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND Several studies have suggested a link between microbiota imbalance and some gastrointestinal, inflammatory and neoplastic diseases. However, the role in pancreatic diseases remain unclear. To evaluate the available evidence for pancreatic diseases, we undertook a systematic review. METHODS OVID Medline (1946-2017), EMBASE (1980-2017) and the Cochrane Central Register of Controlled Trials (CENTRAL Issue 3, 2017) were searched for studies on microbiota in pancreatic disease. We also searched the reference lists of retrieved papers, and conference proceedings. We excluded animal studies, reviews, and case reports. RESULTS A total of 2833 articles were retrieved. After screening and applying the exclusion criteria, 10 studies were included. Three studies showed lower levels of Bifidobacterium or Lactobacillus and higher levels of Enterobacteriaceae in chronic pancreatitis. Two of these studies were uncontrolled, and the third (controlled) study which compared patients with endocrine and exocrine insufficiency, reported that Bacteroidetes levels were lower in those patients without diabetes, while Bifidobacteria levels were higher in those without exocrine insufficiency. Only one study investigated acute pancreatitis, showing higher levels of Enterococcus and lower levels of Bifidobacterium versus healthy participants. There was an overall association between pancreatic cancer and lower levels of Neisseria elongate, Streptococcus mitis and higher levels of Porphyromonas gingivalis and Granulicatella adiacens. CONCLUSIONS Current evidence suggests a possible link between microbiota imbalance and pancreatic cancer. Regarding acute and chronic pancreatitis, data are scarce, dysbiosis appears to be present in both conditions. However, further investigation is required to confirm these findings and to explore therapeutic possibilities.
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Affiliation(s)
- Robert Memba
- Professorial Surgical Unit, Department of Surgery, Trinity College Dublin, Tallaght Hospital, Dublin 24, Ireland.
| | - Sinead N Duggan
- Professorial Surgical Unit, Department of Surgery, Trinity College Dublin, Tallaght Hospital, Dublin 24, Ireland
| | - Hazel M Ni Chonchubhair
- Professorial Surgical Unit, Department of Surgery, Trinity College Dublin, Tallaght Hospital, Dublin 24, Ireland
| | - Oonagh M Griffin
- Professorial Surgical Unit, Department of Surgery, Trinity College Dublin, Tallaght Hospital, Dublin 24, Ireland
| | - Yasir Bashir
- Professorial Surgical Unit, Department of Surgery, Trinity College Dublin, Tallaght Hospital, Dublin 24, Ireland
| | - Donal B O'Connor
- Professorial Surgical Unit, Department of Surgery, Trinity College Dublin, Tallaght Hospital, Dublin 24, Ireland
| | - Anne Murphy
- Tallaght Hospital Library, Tallaght Hospital, Dublin, Ireland
| | - Jean McMahon
- Tallaght Hospital Library, Tallaght Hospital, Dublin, Ireland
| | - Yuri Volcov
- Department of Molecular and Translational Medicine, Trinity College Dublin, St James Hospital, Dublin 8, Ireland
| | - Barbara M Ryan
- Department of Gastroenterology, Tallaght Hospital, Dublin 24, Ireland
| | - Kevin C Conlon
- Professorial Surgical Unit, Department of Surgery, Trinity College Dublin, Tallaght Hospital, Dublin 24, Ireland
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35
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Zheng CJ, Liu R, Xue B, Luo J, Gao L, Wang Y, Ou S, Li S, Peng X. Impact and consequences of polyphenols and fructooligosaccharide interplay on gut microbiota in rats. Food Funct 2017; 8:1925-1932. [PMID: 28451660 DOI: 10.1039/c6fo01783e] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Both fructooligosaccharide (FOS) and polyphenols can be individually and directly transferred to the large intestine of mammals and are beneficial for human health as they reshape the composition of gut microbiota. The combination impact of FOS and polyphenols on rats' gut microbiota and the corresponding consequences on rats were investigated via MiSeq sequencing technique and bioinformatics. The results showed that the combination of different phenolic compounds and FOS displayed distinct impact on the host. The addition of catechin to a FOS diet inhibited Firmicutes and enhanced Bacteroidetes. Moreover, the content of each short chain fatty acid fluctuated in various groups because different unique bacterial species survived or were inhibited under three conditions. On the other aspects, the supplement of catechin controlled the body weight (BW), up-regulated serum leptin, induced more soluble carbohydrates and less soluble polysaccharides in feces, and inhibited or activated some specific genera. The inhibition of genera by catechin could be responsible for the degradation of carbohydrates in gut and the activation of genera might be keystones for the increment of serum leptin. The effect of consuming FOS and/or polyphenols on the health of hosts needs to be further explored.
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Affiliation(s)
- Chuan-Jin Zheng
- School of Food Science, Guangdong Pharmaceutical University, Guangzhou 528458, China
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Lomer MC, Hart AL, Verjee A, Daly A, Solomon J, Mclaughlin J. What are the dietary treatment research priorities for inflammatory bowel disease? A short report based on a priority setting partnership with the James Lind Alliance. J Hum Nutr Diet 2017; 30:709-713. [DOI: 10.1111/jhn.12494] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- M. C. Lomer
- Department of Nutrition and Dietetics; Guy's and St Thomas’ NHS Foundation Trust; London UK
- Diabetes & Nutritional Sciences Division; Kings College London; London UK
| | - A. L. Hart
- IBD Unit; St Mark's Hospital; Harrow Middlesex UK
| | - A. Verjee
- Bowel Disease Research Foundation; Royal College of Surgeons of England; London UK
| | - A. Daly
- Birmingham Women's Hospital; Birmingham Women's NHS Foundation Trust; Birmingham UK
| | - J. Solomon
- British Society of Gastroenterology; London UK
| | - J. Mclaughlin
- Division of Endocrinology, Diabetes & Gastroenterology; School of Medical Sciences; Faculty of Biology, Medicine and Health; University of Manchester and Manchester Academic Health Sciences Centre; Salford UK
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Raza GS, Putaala H, Hibberd AA, Alhoniemi E, Tiihonen K, Mäkelä KA, Herzig KH. Polydextrose changes the gut microbiome and attenuates fasting triglyceride and cholesterol levels in Western diet fed mice. Sci Rep 2017; 7:5294. [PMID: 28706193 PMCID: PMC5509720 DOI: 10.1038/s41598-017-05259-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 05/25/2017] [Indexed: 02/07/2023] Open
Abstract
Obesity and dyslipidemia are hallmarks of metabolic and cardiovascular diseases. Polydextrose (PDX), a soluble fiber has lipid lowering effects. We hypothesize that PDX reduces triglycerides and cholesterol by influencing gut microbiota, which in turn modulate intestinal gene expression. C57BL/6 male mice were fed a Western diet (WD) ±75 mg PDX twice daily by oral gavage for 14 days. Body weight and food intake were monitored daily. Fasting plasma lipids, caecal microbiota and gene expression in intestine and liver were measured after 14 days of feeding. PDX supplementation to WD significantly reduced food intake (p < 0.001), fasting plasma triglyceride (p < 0.001) and total cholesterol (p < 0.05). Microbiome analysis revealed that the relative abundance of Allobaculum, Bifidobacterium and Coriobacteriaceae taxa associated with lean phenotype, increased in WD + PDX mice. Gene expression analysis with linear mixed-effects model showed consistent downregulation of Dgat1, Cd36, Fiaf and upregulation of Fxr in duodenum, jejunum, ileum and colon in WD + PDX mice. Spearman correlations indicated that genera enriched in WD + PDX mice inversely correlated with fasting lipids and downregulated genes Dgat1, Cd36 and Fiaf while positively with upregulated gene Fxr. These results suggest that PDX in mice fed WD promoted systemic changes via regulation of the gut microbiota and gene expression in intestinal tract.
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Affiliation(s)
- Ghulam Shere Raza
- Research unit of Biomedicine and Biocenter of Oulu, Department of Physiology, University of Oulu, Oulu, Finland
| | - Heli Putaala
- DuPont Nutrition and Health, Global Health and Nutrition Science, Kantvik, Finland
| | - Ashley A Hibberd
- DuPont Nutrition and Health, Genomics & Microbiome Science, St. Louis, MO, USA
| | | | - Kirsti Tiihonen
- DuPont Nutrition and Health, Global Health and Nutrition Science, Kantvik, Finland
| | - Kari Antero Mäkelä
- Research unit of Biomedicine and Biocenter of Oulu, Department of Physiology, University of Oulu, Oulu, Finland
| | - Karl-Heinz Herzig
- Research unit of Biomedicine and Biocenter of Oulu, Department of Physiology, University of Oulu, Oulu, Finland. .,Department of Gastroenterology and Metabolism, Poznan University of Medical Sciences, Poznan, Poland. .,Medical Research Center (MRC), University of Oulu, and University Hospital, Oulu, Finland.
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Hayes S, Mahony J, Nauta A, van Sinderen D. Metagenomic Approaches to Assess Bacteriophages in Various Environmental Niches. Viruses 2017; 9:v9060127. [PMID: 28538703 PMCID: PMC5490804 DOI: 10.3390/v9060127] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 05/18/2017] [Accepted: 05/19/2017] [Indexed: 12/15/2022] Open
Abstract
Bacteriophages are ubiquitous and numerous parasites of bacteria and play a critical evolutionary role in virtually every ecosystem, yet our understanding of the extent of the diversity and role of phages remains inadequate for many ecological niches, particularly in cases in which the host is unculturable. During the past 15 years, the emergence of the field of viral metagenomics has drastically enhanced our ability to analyse the so-called viral ‘dark matter’ of the biosphere. Here, we review the evolution of viral metagenomic methodologies, as well as providing an overview of some of the most significant applications and findings in this field of research.
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Affiliation(s)
- Stephen Hayes
- School of Microbiology, University College Cork, Cork T12 YT20, Ireland.
| | - Jennifer Mahony
- School of Microbiology, University College Cork, Cork T12 YT20, Ireland.
- APC Microbiome Institute, University College Cork, Cork T12 YT20, Ireland.
| | - Arjen Nauta
- Friesland Campina, Amersfoort 3800 BN, The Netherlands.
| | - Douwe van Sinderen
- School of Microbiology, University College Cork, Cork T12 YT20, Ireland.
- APC Microbiome Institute, University College Cork, Cork T12 YT20, Ireland.
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Yasmeen R, Fukagawa NK, Wang TT. Establishing health benefits of bioactive food components: a basic research scientist's perspective. Curr Opin Biotechnol 2017; 44:109-114. [PMID: 28056363 DOI: 10.1016/j.copbio.2016.11.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 11/14/2016] [Indexed: 12/23/2022]
Abstract
Bioactive food components or functional foods have recently received significant attention because of their widely touted positive effects on health beyond basic nutrition. However, a question continues to lurk: are these claims for 'super foods' backed by sound science or simply an exaggerated portrayal of very small 'benefits'? Efforts to establish health benefits by scientific means pose a real challenge in regards to defining what those benefits are, as well as how effective the foods are in justifying any health claim. This review discusses the pitfalls associated with the execution, interpretation, extrapolation of the results to humans and the challenges encountered in the dietary research arena from a basic scientist's perspective.
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Affiliation(s)
- Rumana Yasmeen
- Diet, Genomics and Immunology Lab, Beltsville Human Nutrition Research Center, ARS, USDA, Beltsville, MD 20705, USA
| | - Naomi K Fukagawa
- Diet, Genomics and Immunology Lab, Beltsville Human Nutrition Research Center, ARS, USDA, Beltsville, MD 20705, USA
| | - Thomas Ty Wang
- Diet, Genomics and Immunology Lab, Beltsville Human Nutrition Research Center, ARS, USDA, Beltsville, MD 20705, USA.
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Erdman SE, Poutahidis T. Microbes and Oxytocin: Benefits for Host Physiology and Behavior. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2016; 131:91-126. [PMID: 27793228 DOI: 10.1016/bs.irn.2016.07.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
It is now understood that gut bacteria exert effects beyond the local boundaries of the gastrointestinal tract to include distant tissues and overall health. Prototype probiotic bacterium Lactobacillus reuteri has been found to upregulate hormone oxytocin and systemic immune responses to achieve a wide array of health benefits involving wound healing, mental health, metabolism, and myoskeletal maintenance. Together these display that the gut microbiome and host animal interact via immune-endocrine-brain signaling networks. Such findings provide novel therapeutic strategies to stimulate powerful homeostatic pathways and genetic programs, stemming from the coevolution of mammals and their microbiome.
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Affiliation(s)
- S E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, United States; Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - T Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, United States; Aristotle University of Thessaloniki, Thessaloniki, Greece
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