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Alvarenga L, Kemp JA, Baptista BG, Ribeiro M, Lima LS, Mafra D. Production of Toxins by the Gut Microbiota: The Role of Dietary Protein. Curr Nutr Rep 2024; 13:340-350. [PMID: 38587573 DOI: 10.1007/s13668-024-00535-x] [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] [Accepted: 03/26/2024] [Indexed: 04/09/2024]
Abstract
PURPOSE OF REVIEW This narrative review will discuss how the intake of specific protein sources (animal and vegetable) providing specific amino acids can modulate the gut microbiota composition and generate toxins. A better understanding of these interactions could lead to more appropriate dietary recommendations to improve gut health and mitigate the risk of complications promoted by the toxic metabolites formed by the gut microbiota. RECENT FINDINGS Gut microbiota is vital in maintaining human health by influencing immune function and key metabolic pathways. Under unfavorable conditions, the gut microbiota can produce excess toxins, which contribute to inflammation and the breakdown of the integrity of the intestinal barrier. Genetic and environmental factors influence gut microbiota diversity, with diet playing a crucial role. Emerging evidence indicates that the gut microbiota significantly metabolizes amino acids from dietary proteins, producing various metabolites with beneficial and harmful effects. Amino acids such as choline, betaine, l-carnitine, tyrosine, phenylalanine, and tryptophan can increase the production of uremic toxins when metabolized by intestinal bacteria. The type of food source that provides these amino acids affects the production of toxins. Plant-based diets and dietary fiber are associated with lower toxin formation than animal-based diets due to the high amino acid precursors in animal proteins.
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Affiliation(s)
- Livia Alvarenga
- Graduate Program in Biological Sciences - Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro (RJ), Brazil.
- Graduate Program in Nutrition Science, Federal Fluminense University, Niteroi, Rio de Janeiro (RJ), Brazil.
| | - Julie A Kemp
- Graduate Program in Nutrition Science, Federal Fluminense University, Niteroi, Rio de Janeiro (RJ), Brazil
| | - Beatriz G Baptista
- Graduate Program in Medical Science, Federal Fluminense University, Niteroi, Rio de Janeiro (RJ), Brazil
| | - Marcia Ribeiro
- Graduate Program in Biological Sciences - Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro (RJ), Brazil
| | - Ligia Soares Lima
- Graduate Program in Biological Sciences - Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro (RJ), Brazil
| | - Denise Mafra
- Graduate Program in Biological Sciences - Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro (RJ), Brazil
- Graduate Program in Nutrition Science, Federal Fluminense University, Niteroi, Rio de Janeiro (RJ), Brazil
- Graduate Program in Medical Science, Federal Fluminense University, Niteroi, Rio de Janeiro (RJ), Brazil
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2
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Liversidge BD, Gomez DE, Dodd SAS, MacNicol JL, Adolphe JL, Blois SL, Verbrugghe A. Comparison of the fecal microbiota of adult healthy dogs fed a plant-based (vegan) or an animal-based diet. Front Microbiol 2024; 15:1367493. [PMID: 38694809 PMCID: PMC11061427 DOI: 10.3389/fmicb.2024.1367493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/02/2024] [Indexed: 05/04/2024] Open
Abstract
Purpose Pet guardians are increasingly seeking vegan dog foods. However, research on the impact of these diets on gastrointestinal (GI) physiology and health is limited. In humans, vegan diets modify the GI microbiota, increasing beneficial digestive microorganisms. This study aimed to examine the canine fecal microbiota in response to a vegan diet compared to an animal-based diet. Methods Sixty-one client-owned healthy adult dogs completed a randomized, double-blinded longitudinal study. Dogs were randomly assigned into two groups that were fed either a commercial extruded animal-based diet (MEAT, n = 30) or an experimental extruded vegan diet (PLANT, n = 31) for 12 weeks. Fecal collections occurred at the start of the experimental period and after 3 months of exclusively feeding either diet. Bacterial DNA was extracted from the feces, and the V4 region of the 16S rRNA gene was amplified using PCR and sequenced on Illumina MiSeq. Beta-diversity was measured using Jaccard and Bray-Curtis distances, and the PERMANOVA was used to assess for differences in fecal microbiota within and between groups. Alpha-diversity indices for richness, evenness, and diversity, as well as relative abundance, were calculated and compared between groups. Results Beta-diversity differences occurred between diet groups at exit time-point with differences on Bray-Curtis distances at the family and genus levels (p = 0.007 and p = 0.001, respectively), and for the Jaccard distance at the family and genus level (p = 0.006 and p = 0.011, respectively). Significant differences in alpha-diversity occurred when comparing the PLANT to the MEAT group at the exit time-point with the PLANT group having a lower evenness (p = 0.012), but no significant differences in richness (p = 0.188), or diversity (p = 0.06). At exit-timepoint, compared to the MEAT group, the relative abundance of Fusobacterium, Bacteroides, and Campylobacter was lower in the PLANT group. The relative abundance of Fusobacterium decreased over time in the PLANT group, while no change was observed in the MEAT group. Conclusion These results indicate that vegan diets may change the canine gut microbiota. Future studies are warranted to confirm our results and determine long-term effects of vegan diets on the canine gut microbiome.
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Affiliation(s)
- Brooklynn D. Liversidge
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Diego E. Gomez
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Sarah A. S. Dodd
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Jennifer L. MacNicol
- Department of Animal Biosciences, Ontario Agricultural College, University of Guelph, Guelph, ON, Canada
| | - Jennifer L. Adolphe
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
- Petcurean Pet Nutrition, Chilliwack, BC, Canada
| | - Shauna L. Blois
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Adronie Verbrugghe
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
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Goldman DM, Warbeck CB, Waterfall TJ, Sud A, Quarshie M, Craddock JC. Plant-based and Early Time-restricted Eating for Prevention and Treatment of Type 2 Diabetes in Adults: A Narrative Review. Can J Diabetes 2024:S1499-2671(24)00058-3. [PMID: 38513822 DOI: 10.1016/j.jcjd.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/21/2024] [Accepted: 03/11/2024] [Indexed: 03/23/2024]
Abstract
Type 2 diabetes (T2D) is a significant public health challenge for which effective lifestyle interventions are needed. A growing body of evidence supports the use of both plant-based eating patterns and early time-restricted eating (eTRE) for the prevention and treatment of T2D, but research has not yet explored the potential of these dietary strategies in combination. In this narrative review we assessed the evidence by which plant-based diets, in conjunction with eTRE, could support T2D care. The electronic databases MEDLINE and the Web of Science were searched for relevant articles published throughout the last decade. Observational research has shown that healthy plant-based eating patterns and eTRE are associated with reductions in T2D risk. Interventional trials demonstrated that plant-based diets promote improvements in glycated hemoglobin, insulin resistance, glycemic control, and cardiometabolic risk factors. These changes may be mediated, in part, by reductions in oxidative stress, dietary acid load, and hepatocellular and intramyocellular lipids. The eTRE strategies were also shown to improve insulin resistance and glycemic control, and mechanisms of action included enhanced regulation of circadian rhythm and increased metabolic flexibility. Integrating these dietary strategies may produce additive benefits, mediated by reduced visceral adiposity and beneficial shifts in gut microbiota composition. However, potential barriers to concurrent implementation of these interventions may exist, including social challenges, scheduling constraints, and tolerance. Prospective trials are needed to examine their acceptability and clinical effects.
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Affiliation(s)
| | - Cassandra B Warbeck
- Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
| | | | - Adam Sud
- Plant-Based for Positive Change, Austin, Texas, United States
| | | | - Joel C Craddock
- School of Medical, Indigenous and Health Sciences, University of Wollongong, Wollongong, New South Wales, Australia
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Kerman BE, Self W, Yassine HN. Can the gut microbiome inform the effects of omega-3 fatty acid supplementation trials on cognition? Curr Opin Clin Nutr Metab Care 2024; 27:116-124. [PMID: 38170690 PMCID: PMC10872319 DOI: 10.1097/mco.0000000000001007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
PURPOSE OF REVIEW Most omega-3 polyunsaturated fatty acid (n-3 PUFA) supplementation clinical trials report inconsistent or null findings on measures of cognition or Alzheimer's disease (AD) with a relatively large variability in the response to n-3 PUFA supplementation. The purpose of this review is to identify whether the gut microbiome together with the metabolome can provide critical insights to understand this heterogeneity in the response to n-3 PUFA supplementation. RECENT FINDINGS A Western diet with high saturated fat and omega-6 fatty acid content, obesity, and lack of exercise puts strain on the gut microbiome resulting in imbalance, dysbiosis, reduced bacterial diversity, and increased abundance of the pro-inflammatory taxa. A plant-based diet has beneficial effects on the gut microbiota even when deficient in n-3 PUFAs. Human and animal studies show that increased intake of the n-3 PUFAs correlates with increased beneficial intestinal bacteria when compared to a Western diet. SUMMARY The composition of the gut microbiota can help define the effects of n-3 PUFA supplementation on the brain and lead to more personalized nutritional interventions.
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Affiliation(s)
- Bilal E Kerman
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Wade Self
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Hussein N Yassine
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, California
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Schoeler M, Chakaroun R, Brolin H, Larsson I, Perkins R, Marschall HU, Caesar R, Bäckhed F. Moderate variations in the human diet impact the gut microbiota in humanized mice. Acta Physiol (Oxf) 2024; 240:e14100. [PMID: 38258357 DOI: 10.1111/apha.14100] [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: 08/17/2023] [Revised: 10/10/2023] [Accepted: 01/01/2024] [Indexed: 01/24/2024]
Abstract
AIM Drastic diet interventions have been shown to promote rapid and significant compositional changes of the gut microbiota, but the impact of moderate diet variations is less clear. Here, we aimed to clarify the impact of moderate diet variations that remain within the spectrum of the habitual human diet on gut microbiota composition. METHODS We performed a pilot diet intervention where five healthy volunteers consumed a vegetarian ready-made meal for three days to standardize dietary intake before switching to a meat-based ready-made western-style meal and high sugar drink for two days. We performed 16S rRNA sequencing from daily fecal sampling to assess gut microbiota changes caused by the intervention diet. Furthermore, we used the volunteers' fecal samples to colonize germ-free mice that were fed the same sterilized diets to study the effect of a moderate diet intervention on the gut microbiota in a setting of reduced interindividual variation. RESULTS In the human intervention, we found that fecal microbiota composition varied between and within individuals regardless of diet. However, when we fed the same diets to mice colonized with the study participants' feces, we observed significant, often donor-specific, changes in the mouse microbiota following this moderate diet intervention. CONCLUSION Moderate variations in the habitual human diet have the potential to alter the gut microbiota. Feeding humanized mice human diets may facilitate our understanding of individual human gut microbiota responses to moderate dietary changes and help improve individualized interventions.
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Affiliation(s)
- Marc Schoeler
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Rima Chakaroun
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Harald Brolin
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ingrid Larsson
- Department of Gastroenterology and Hepatology, Unit of Clinical Nutrition and the Regional Obesity Center, Sahlgrenska University Hospital, Gothenburg, Sweden
- Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Rosie Perkins
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Hanns-Ulrich Marschall
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Robert Caesar
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Fredrik Bäckhed
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Physiology, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Gou W, Miao Z, Deng K, Zheng JS. Nutri-microbiome epidemiology, an emerging field to disentangle the interplay between nutrition and microbiome for human health. Protein Cell 2023; 14:787-806. [PMID: 37099800 PMCID: PMC10636640 DOI: 10.1093/procel/pwad023] [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: 02/02/2023] [Accepted: 04/02/2023] [Indexed: 04/28/2023] Open
Abstract
Diet and nutrition have a substantial impact on the human microbiome, and interact with the microbiome, especially gut microbiome, to modulate various diseases and health status. Microbiome research has also guided the nutrition field to a more integrative direction, becoming an essential component of the rising area of precision nutrition. In this review, we provide a broad insight into the interplay among diet, nutrition, microbiome, and microbial metabolites for their roles in the human health. Among the microbiome epidemiological studies regarding the associations of diet and nutrition with microbiome and its derived metabolites, we summarize those most reliable findings and highlight evidence for the relationships between diet and disease-associated microbiome and its functional readout. Then, the latest advances of the microbiome-based precision nutrition research and multidisciplinary integration are described. Finally, we discuss several outstanding challenges and opportunities in the field of nutri-microbiome epidemiology.
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Affiliation(s)
- Wanglong Gou
- Westlake Intelligent Biomarker Discovery Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, China
- Research Center for Industries of the Future, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310030, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Zelei Miao
- Westlake Intelligent Biomarker Discovery Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, China
- Research Center for Industries of the Future, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310030, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Kui Deng
- Westlake Intelligent Biomarker Discovery Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, China
- Research Center for Industries of the Future, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310030, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Ju-Sheng Zheng
- Westlake Intelligent Biomarker Discovery Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, China
- Research Center for Industries of the Future, Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310030, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, China
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Alkader DAA, Asadi N, Solangi U, Singh R, Rasuli SF, Farooq MJ, Raheela FNU, Waseem R, Gilani SM, Abbas K, Ahmed M, Tanoh DB, Shah HH, Dulal A, Hussain MS, Talpur AS. Exploring the role of gut microbiota in autoimmune thyroid disorders: a systematic review and meta-analysis. Front Endocrinol (Lausanne) 2023; 14:1238146. [PMID: 37964972 PMCID: PMC10641821 DOI: 10.3389/fendo.2023.1238146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 08/15/2023] [Indexed: 11/16/2023] Open
Abstract
Background Autoimmune thyroid diseases (AITDs) are characterized by unique immune responses against thyroid antigens and persist over time. The most common types of AITDs are Graves' disease (GD) and Hashimoto's thyroiditis (HT). There is mounting evidence that changes in the microbiota may play a role in the onset and development of AITDs. Objective The purpose of this comprehensive literature study was to answer the following query: Is there a difference in microbiota in those who have AITDs? Methods According to the standards set out by the PRISMA statement, 16 studies met the requirements for inclusion after being screened for eligibility. Results The Simpson index was the only diversity measure shown to be considerably lower in patients with GD compared to healthy participants, whereas all other indices were found to be significantly greater in patients with HT. The latter group, however, showed a greater relative abundance of Bacteroidetes and Actinobacteria at the phylum level, and consequently of Prevotella and Bifidobacterium at the genus level. The strongest positive and negative relationships were seen for thyroid peroxidase antibodies and bacterial load. Conclusion Overall, both GD and HT patients showed significant changes in the gut microbiota's diversity and composition. Systematic review registration https://www.crd.york.ac.uk/PROSPERO/, identifier CRD42023432455.
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Affiliation(s)
| | | | - Uzma Solangi
- Department of Medicine, Liaquat University of Medical & Health Sciences, Jamshoro, Pakistan
| | - Ransherjit Singh
- Department of Medicine, Civil Hospital Karachi, Karachi, Pakistan
| | | | - Muhammad Jawad Farooq
- Department of Medicine, Liaquat University of Medical & Health Sciences, Jamshoro, Pakistan
| | - F. N. U. Raheela
- Department of Medicine, University of Toledo, Toledo, OH, United States
| | - Radeyah Waseem
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Syed Mujahid Gilani
- Department of Medicine, Shaheed Zulfiqar Ali Bhutto Medical University (SZABMU), Islamabad, Pakistan
| | - Kiran Abbas
- Department of Medicine, Aga Khan University, Karachi, Pakistan
| | - Moiz Ahmed
- Department of Medicine, National Institute of Cardiovascular Diseases, Karachi, Pakistan
| | - Desmond Boakye Tanoh
- Department of Medicine, Insight Hospital and Medical Center Chicago, Chicago, IL, United States
| | - Hussain Haider Shah
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Ayusha Dulal
- Department of Human Physiology, Nepalese Army Institute of Health Science, Kathmandu, Nepal
| | | | - Abdul Subhan Talpur
- Department of Medicine, Liaquat University of Medical & Health Sciences, Jamshoro, Pakistan
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Aljuraiban GS, Aljazairy EA, Alsahli AS, Sabico S, Al-Musharaf S. Plant-based dietary index in relation to gut microbiota in Arab women. Medicine (Baltimore) 2023; 102:e35262. [PMID: 37747018 PMCID: PMC10519475 DOI: 10.1097/md.0000000000035262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 07/31/2023] [Accepted: 08/25/2023] [Indexed: 09/26/2023] Open
Abstract
Plant-based foods may influence gut microbiota profiles and contribute to overall human health. However, not all plant-based diets are nutritionally equivalent. We aimed to assess the association between a plant-based dietary index (PDI), specifically unhealthy PDI and healthy PDI (hPDI), and gut microbial composition and diversity in young women in Saudi Arabia. This observational study included 92 healthy women aged 18 to 25 years. Dietary and anthropometric data were collected. Fecal samples were analyzed using a novel whole-genome shotgun sequencing technique. Alpha and beta diversities measured the richness and composition of the gastrointestinal system. Relationships were examined with Pearson correlation, linear regression, and Wilcoxon Rank-Sum tests. Participants with higher PDI had higher levels of Bacteroides_u_s than those with lower PDI. hPDI was positively correlated with Bifidobacterium pseudocatenulatum, Bifidobacterium longum, Oscillibacter, and Lactobacillus acidophilus and inversely correlated with Clostridioides difficile (P < .05). Unhealthy plant-based dietary index was inversely correlated with B pseudocatenulatum, B longum, and L acidophilus and positively correlated with C difficile (P < .05) and other species of interest. In conclusion, hPDI scores were significantly associated with microbiota species linked with favorable health outcomes, independent of body mass index and gut microbial richness and composition in Arab women. Future studies should investigate the modulating effect of plant-based diets on the species identified in the current study.
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Affiliation(s)
- Ghadeer S. Aljuraiban
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Esra’a A. Aljazairy
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abdulaziz S. Alsahli
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Shaun Sabico
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Sara Al-Musharaf
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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Sarmiento KR, Carr A, Diener C, Locey KJ, Gibbons SM. Island biogeography theory and the gut: why taller people tend to harbor more diverse gut microbiomes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.08.552554. [PMID: 37609334 PMCID: PMC10441360 DOI: 10.1101/2023.08.08.552554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Prior work has shown a positive scaling relationship between vertebrate body size and gut microbiome alpha-diversity. This observation mirrors commonly observed species area relationships (SAR) in many other ecosystems. Here, we show a similar scaling relationship between human height and gut microbiome alpha-diversity across two large, independent cohorts, controlling for a wide range of relevant covariates, such as body mass index, age, sex, and bowel movement frequency. Island Biogeography Theory (IBT), which predicts that larger islands tend to harbor greater species diversity through neutral demographic processes, provides a simple mechanism for these positive SARs. Using an individual-based model of IBT adapted to the gut, we demonstrate that increasing the length of a flow-through ecosystem is associated with increased species diversity. We delve into the possible clinical implications of these SARs in the American Gut Cohort. Consistent with prior observations that lower alpha-diversity is a risk factor for Clostridioides difficile infection (CDI), we found that individuals who reported a history of CDI were shorter than those who did not and that this relationship appeared to be mediated by alpha-diversity. We also observed that vegetable consumption mitigated this risk increase, also by mediation through alpha-diversity. In summary, we find that body size and gut microbiome diversity show a robust positive association, that this macroecological scaling relationship is related to CDI risk, and that greater vegetable intake can mitigate this effect.
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Affiliation(s)
| | - Alex Carr
- Institute for Systems Biology, Seattle, WA 98109, USA
- Molecular Engineering Graduate Program, University of Washington, Seattle, WA 98195, USA
| | | | - Kenneth J. Locey
- Center for Quality, Safety & Value Analytics, Rush University Medical Center, Chicago, IL 60612, USA
| | - Sean M. Gibbons
- Institute for Systems Biology, Seattle, WA 98109, USA
- Molecular Engineering Graduate Program, University of Washington, Seattle, WA 98195, USA
- Department of Biological Engineering, University of Washington, Seattle, WA 98195, USA
- Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA
- eScience Institute, University of Washington, Seattle, WA 98195, USA
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Peña-Jorquera H, Cid-Jofré V, Landaeta-Díaz L, Petermann-Rocha F, Martorell M, Zbinden-Foncea H, Ferrari G, Jorquera-Aguilera C, Cristi-Montero C. Plant-Based Nutrition: Exploring Health Benefits for Atherosclerosis, Chronic Diseases, and Metabolic Syndrome-A Comprehensive Review. Nutrients 2023; 15:3244. [PMID: 37513660 PMCID: PMC10386413 DOI: 10.3390/nu15143244] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023] Open
Abstract
Atherosclerosis, chronic non-communicable diseases, and metabolic syndrome are highly interconnected and collectively contribute to global health concerns that reduce life expectancy and quality of life. These conditions arise from multiple risk factors, including inflammation, insulin resistance, impaired blood lipid profile, endothelial dysfunction, and increased cardiovascular risk. Adopting a plant-based diet has gained popularity as a viable alternative to promote health and mitigate the incidence of, and risk factors associated with, these three health conditions. Understanding the potential benefits of a plant-based diet for human health is crucial, particularly in the face of the rising prevalence of chronic diseases like diabetes, hypertension, dyslipidemia, atherosclerosis, and cancer. Thus, this review focused on the plausible advantages of consuming a type of food pattern for the prevention and/or treatment of chronic diseases, emphasizing the dietary aspects that contribute to these conditions and the evidence supporting the benefits of a plant-based diet for human health. To facilitate a more in-depth analysis, we present separate evidence for each of these three concepts, acknowledging their intrinsic connection while providing a specific focus on each one. This review underscores the potential of a plant-based diet to target the underlying causes of these chronic diseases and enhance health outcomes for individuals and populations.
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Affiliation(s)
- Humberto Peña-Jorquera
- IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso, Viña del Mar 2530388, Chile
| | - Valeska Cid-Jofré
- Centro de Investigación Biomédica y Aplicada (CIBAP), Escuela de Medicina, Facultad de Ciencias Médicas, Universidad de Santiago de Chile (USACH), Santiago 9160019, Chile
| | - Leslie Landaeta-Díaz
- Facultad de Salud y Ciencias Sociales, Universidad de las Américas, Santiago 7500975, Chile
- Núcleo en Ciencias Ambientales y Alimentarias, Universidad de las Américas, Santiago 7500975, Chile
| | - Fanny Petermann-Rocha
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad Diego Portales, Santiago 8370068, Chile
- BHF Glasgow Cardiovascular Research Centre, School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow G12 8TA, UK
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, Centre for Healthy Living, University of Concepción, Concepción 4070386, Chile
| | - Hermann Zbinden-Foncea
- Laboratorio de Fisiología del Ejercicio y Metabolismo, Escuela de Kinesiología, Facultad de Medicina, Universidad Finis Terrae, Santiago 7500000, Chile
- Facultad de Ciencias de la Salud, Universidad Francisco de Vitoria, 28223 Madrid, Spain
| | - Gerson Ferrari
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Av. Pedro de Valdivia 425, Providencia 7500912, Chile
- Escuela de Ciencias de la Actividad Física, el Deporte y la Salud, Universidad de Santiago de Chile (USACH), Santiago 9170022, Chile
| | - Carlos Jorquera-Aguilera
- Escuela de Nutrición y Dietética, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile
| | - Carlos Cristi-Montero
- IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso, Viña del Mar 2530388, Chile
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Zambrano AK, Cadena-Ullauri S, Guevara-Ramírez P, Frias-Toral E, Ruiz-Pozo VA, Paz-Cruz E, Tamayo-Trujillo R, Chapela S, Montalván M, Sarno G, Guerra CV, Simancas-Racines D. The Impact of a Very-Low-Calorie Ketogenic Diet in the Gut Microbiota Composition in Obesity. Nutrients 2023; 15:2728. [PMID: 37375632 DOI: 10.3390/nu15122728] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
The very-low-calorie KD (VLCKD) is characterized by a caloric intake of under 800 kcal/day divided into less than 50 g/day of carbohydrate (13%) and 1 to 1.5 g of protein/kg of body weight (44%) and 43% of fat. This low carbohydrate intake changes the energy source from glucose to ketone bodies. Moreover, clinical trials have consistently shown a beneficial effect of VLCKD in several diseases, such as heart failure, schizophrenia, multiple sclerosis, Parkinson's, and obesity, among others. The gut microbiota has been associated with the metabolic conditions of a person and is regulated by diet interactions; furthermore, it has been shown that the microbiota has a role in body weight homeostasis by regulating metabolism, appetite, and energy. Currently, there is increasing evidence of an association between gut microbiota dysbiosis and the pathophysiology of obesity. In addition, the molecular pathways, the role of metabolites, and how microbiota modulation could be beneficial remain unclear, and more research is needed. The objective of the present article is to contribute with an overview of the impact that VLCKD has on the intestinal microbiota composition of individuals with obesity through a literature review describing the latest research regarding the topic and highlighting which bacteria phyla are associated with obesity and VLCKD.
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Affiliation(s)
- Ana Karina Zambrano
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador
| | - Santiago Cadena-Ullauri
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador
| | - Patricia Guevara-Ramírez
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador
| | - Evelyn Frias-Toral
- School of Medicine, Universidad Católica Santiago de Guayaquil, Guayaquil 090615, Ecuador
| | - Viviana A Ruiz-Pozo
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador
| | - Elius Paz-Cruz
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador
| | - Rafael Tamayo-Trujillo
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador
| | - Sebastián Chapela
- Departamento de Bioquímica, Facultad de Ciencias Médicas, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires C1121ABE, Argentina
- Hospital Británico de Buenos Aires, Equipo de Soporte Nutricional, Ciudad Autónoma de Buenos Aires C1280AEB, Argentina
| | - Martha Montalván
- School of Medicine, Universidad Espíritu Santo, Samborondón 091952, Ecuador
| | - Gerardo Sarno
- "San Giovanni di Dio e Ruggi D'Aragona" University Hospital, Scuola Medica Salernitana, 84131 Salerno, Italy
| | - Claudia V Guerra
- Centro de Investigación de Salud Pública y Epidemiología Clínica (CISPEC), Universidad UTE, Quito 170527, Ecuador
| | - Daniel Simancas-Racines
- Centro de Investigación de Salud Pública y Epidemiología Clínica (CISPEC), Universidad UTE, Quito 170527, Ecuador
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12
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Sun C, Li A, Xu C, Ma J, Wang H, Jiang Z, Hou J. Comparative Analysis of Fecal Microbiota in Vegetarians and Omnivores. Nutrients 2023; 15:nu15102358. [PMID: 37242241 DOI: 10.3390/nu15102358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Diet has a significant impact on fecal microbiota, which in turn plays an important role in human health. To evaluate the impact of dietary habits on fecal microbiota, we investigated the fecal microbial composition in vegetarians and omnivores using 16S rRNA gene sequencing, and estimated the correlation between fecal microbiota, body mass and diet. The dietary data showed that vegetarians consumed more plant-based foods rich in dietary fiber, omnivores consumed more animal-based foods rich in fat and overweight and obese people consumed more high-energy foods. Compared to omnivores, vegetarians had greater richness and diversity in their fecal microbiota. The Firmicutes/Bacteroidetes ratio was lower and the Prevotella/Bacteroides ratio was higher in vegetarians. The meat intake correlated positively with the proportion of Bacteroides and negatively with the proportion of Prevotella. The composition and diversity in fecal microbiota in the normal weight group, overweight group and obesity group were similar to that of vegetarians and omnivores, respectively. This paper revealed the distinctive characteristics of fecal microbiota in vegetarians and omnivores. The omnivorous diet contained more fat, which reduced the fecal microbial diversity, and was more likely to lead to being overweight or obese.
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Affiliation(s)
- Changbao Sun
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
- College of Food and Biological Engineering, Qiqihar University, Qiqihar 161006, China
| | - Ang Li
- College of Food and Biological Engineering, Qiqihar University, Qiqihar 161006, China
| | - Cong Xu
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Jiage Ma
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Huan Wang
- Branch of Animal Husbandry and Veterinary of Heilongjiang Academy of Agricultural Sciences, Qiqihar 161005, China
| | - Zhanmei Jiang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Juncai Hou
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
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13
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Šik Novak K, Bogataj Jontez N, Petelin A, Hladnik M, Baruca Arbeiter A, Bandelj D, Pražnikar J, Kenig S, Mohorko N, Jenko Pražnikar Z. Could Gut Microbiota Composition Be a Useful Indicator of a Long-Term Dietary Pattern? Nutrients 2023; 15:2196. [PMID: 37432336 DOI: 10.3390/nu15092196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/01/2023] [Accepted: 05/03/2023] [Indexed: 07/12/2023] Open
Abstract
Despite the known effects of diet on gut microbiota composition, not many studies have evaluated the relationship between distinct dietary patterns and gut microbiota. The aim of our study was to determine whether gut microbiota composition could be a useful indicator of a long-term dietary pattern. We collected data from 89 subjects adhering to omnivorous, vegetarian, vegan, and low-carbohydrate, high-fat diet that were equally distributed between groups and homogenous by age, gender, and BMI. Gut microbiota composition was analyzed with a metabarcoding approach using V4 hypervariable region of the 16S rRNA gene. K-means clustering of gut microbiota at the genus level was performed and the nearest neighbor classifier was applied to predict microbiota clustering classes. Our results suggest that gut microbiota composition at the genus level is not a useful indicator of a subject's dietary pattern, with the exception of a vegan diet that is represented by a high abundance of Prevotella 9. Based on our model, a combination of 26 variables (anthropometric measurements, serum biomarkers, lifestyle factors, gastrointestinal symptoms, psychological factors, specific nutrients intake) is more important to predict an individual's microbiota composition cluster, with 91% accuracy, than the dietary intake alone. Our findings could serve to develop strategies to educate individuals about changes of some modifiable lifestyle factors, aiming to classify them into clusters with favorable health markers, independent of their dietary pattern.
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Affiliation(s)
- Karin Šik Novak
- Faculty of Health Sciences, University of Primorska, Polje 42, 6310 Izola, Slovenia
| | - Nives Bogataj Jontez
- Faculty of Health Sciences, University of Primorska, Polje 42, 6310 Izola, Slovenia
| | - Ana Petelin
- Faculty of Health Sciences, University of Primorska, Polje 42, 6310 Izola, Slovenia
| | - Matjaž Hladnik
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, 6000 Koper, Slovenia
| | - Alenka Baruca Arbeiter
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, 6000 Koper, Slovenia
| | - Dunja Bandelj
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, 6000 Koper, Slovenia
| | - Jure Pražnikar
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, 6000 Koper, Slovenia
| | - Saša Kenig
- Faculty of Health Sciences, University of Primorska, Polje 42, 6310 Izola, Slovenia
| | - Nina Mohorko
- Faculty of Health Sciences, University of Primorska, Polje 42, 6310 Izola, Slovenia
| | - Zala Jenko Pražnikar
- Faculty of Health Sciences, University of Primorska, Polje 42, 6310 Izola, Slovenia
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14
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Seel W, Reiners S, Kipp K, Simon MC, Dawczynski C. Role of Dietary Fiber and Energy Intake on Gut Microbiome in Vegans, Vegetarians, and Flexitarians in Comparison to Omnivores-Insights from the Nutritional Evaluation (NuEva) Study. Nutrients 2023; 15:nu15081914. [PMID: 37111133 PMCID: PMC10146654 DOI: 10.3390/nu15081914] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/07/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
In recent years, there has been a global trend towards a plant-based lifestyle. In the NuEva study, dietary self-reports of 258 participants following one of four diets (Western diet (WD), flexitarians (Flex), vegetarians (VG), and vegans (VN)) were related to fecal microbiome composition. Reduced consumption of animal products (VN < VG < Flex < WD) was associated with a decreased intake of energy (p < 0.05), and an increased intake of soluble and non-soluble dietary fibers (p < 0.05). We observed the lowest average microbiome diversity in vegans and the highest in WD. Compared to WD, VG (p < 0.05) and VN (p < 0.01) differed significantly in their bacterial composition. These data were related to dietary fiber intake. Furthermore, we identified 14 diet-specific biomarkers at the genus level by using LefSe analysis. Of these, 11 showed minimum or maximum counts in WD or VN. While the VN-specific species were inversely associated with cardiovascular risk factors, a positive association was detected for the WD-specific species. Identifying biomarkers for the diets on extreme ends of the spectrum (WD and VN) and their association with cardiovascular risk factors provides a solid evidence base highlighting the potential and the need for the development of personalized recommendations dependent on dietary patterns. Even so, the mechanisms underlying these diet-specific differences in microbiome composition cannot yet be clearly assessed. The elucidation of these associations will provide the basis for personalized nutritional recommendations based on the microbiome.
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Affiliation(s)
- Waldemar Seel
- Nutrition and Microbiota, Institute of Nutrition and Food Sciences, University of Bonn, 53012 Bonn, Germany
| | - Sarah Reiners
- Junior Research Group Nutritional Concepts, Institute of Nutrition, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Kristin Kipp
- Department of Pediatrics and Adolescent Medicine, Sophien- and Hufeland Hospital, Henry-van-de-Velde-Str. 1, 99425 Weimar, Germany
| | - Marie-Christin Simon
- Nutrition and Microbiota, Institute of Nutrition and Food Sciences, University of Bonn, 53012 Bonn, Germany
| | - Christine Dawczynski
- Junior Research Group Nutritional Concepts, Institute of Nutrition, Friedrich Schiller University Jena, 07743 Jena, Germany
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15
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Marano G, Mazza M, Lisci FM, Ciliberto M, Traversi G, Kotzalidis GD, De Berardis D, Laterza L, Sani G, Gasbarrini A, Gaetani E. The Microbiota-Gut-Brain Axis: Psychoneuroimmunological Insights. Nutrients 2023; 15:nu15061496. [PMID: 36986226 PMCID: PMC10059722 DOI: 10.3390/nu15061496] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/18/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023] Open
Abstract
There is growing interest in the role that the intestinal microbiota and the related autoimmune processes may have in the genesis and presentation of some psychiatric diseases. An alteration in the communication of the microbiota-gut-brain axis, which constitutes a communicative model between the central nervous system (CNS) and the gastro-enteric tract, has been identified as one of the possible causes of some psychiatric diseases. The purpose of this narrative review is to describe evidence supporting a role of the gut microbiota in psychiatric diseases and the impact of diet on microbiota and mental health. Change in the composition of the gut microbiota could determine an increase in the permeability of the intestinal barrier, leading to a cytokine storm. This could trigger a systemic inflammatory activation and immune response: this series of events could have repercussions on the release of some neurotransmitters, altering the activity of the hypothalamic-pituitary-adrenal axis, and reducing the presence of trophic brain factors. Although gut microbiota and psychiatric disorders seem to be connected, more effort is needed to understand the potential causative mechanisms underlying the interactions between these systems.
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Affiliation(s)
- Giuseppe Marano
- Department of Geriatrics, Neuroscience and Orthopedics, Institute of Psychiatry and Psychology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Marianna Mazza
- Department of Geriatrics, Neuroscience and Orthopedics, Institute of Psychiatry and Psychology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Francesco Maria Lisci
- Department of Geriatrics, Neuroscience and Orthopedics, Institute of Psychiatry and Psychology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Michele Ciliberto
- Department of Geriatrics, Neuroscience and Orthopedics, Institute of Psychiatry and Psychology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Gianandrea Traversi
- Unit of Medical Genetics, Department of Laboratory Medicine, Fatebenefratelli Isola Tiberina-Gemelli Isola, 00168 Rome, Italy
| | - Georgios Demetrios Kotzalidis
- Department of Geriatrics, Neuroscience and Orthopedics, Institute of Psychiatry and Psychology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sant'Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy
| | | | - Lucrezia Laterza
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Gabriele Sani
- Department of Geriatrics, Neuroscience and Orthopedics, Institute of Psychiatry and Psychology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Antonio Gasbarrini
- Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, 00168 Rome, Italy
| | - Eleonora Gaetani
- Department of Medical and Surgical Sciences, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
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16
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Chen Y, Lai Y, Zheng J, Liu Z, Nong D, Liang J, Li Y, Huang Z. Seasonal variations in the gut microbiota of white-headed black langur (Trachypithecus leucocephalus) in a limestone forest in Southwest Guangxi, China. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2023.1126243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
Investigating gut microbiota is important for understanding the physiological adaptation of animals to food availability changes in fragmented habitats and consequently providing new ideas for the conservation of endangered wild animals. In this study, we explored the gut microbiota of the endangered white-headed black langur (Trachypithecus leucocephalus), which is endemic to the limestone forests of Southwest Guangxi, China, to understand its adaptation strategies to seasonal changes in habitat using 16S rRNA sequencing. Our results revealed significant seasonal variations in the gut microbiota of white-headed black langurs. In particular, the alpha diversity was higher in the rainy season than in the dry season, and the beta diversity was significantly different between the two seasons. At the phylum level, the relative abundance of Firmicutes, Actinobacteriota, and Proteobacteria was higher in the dry season than that in the rainy season, whereas that of Bacteroidetes, Spirochaetota, and Cyanobacteria was significantly higher in the rainy season than that in the dry season. At the family level, Oscillospiraceae and Eggerthellaceae were more abundant in the dry season than in the rainy season, whereas Lachnospiraceae, Ruminococcaceae, and Monoglobaceae were more abundant in the rainy season than in the dry season. These results could have been obtained due to seasonal changes in the diet of langurs in response to food plant phenology. In addition, the neutral community model revealed that the gut microbiota assembly of these langurs was dominated by deterministic processes and was more significantly affected by ecological factors in the dry season than in the rainy season, which could be linked to the higher dependence of these langurs on mature leaves in the dry season. We concluded that the seasonal variations in the gut microbiota of white-headed black langurs occurred in response to food plant phenology in their habitat, highlighting the importance of microbiota in responding to fluctuating ecological factors and adapting to seasonal dietary changes.
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17
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Dhopatkar N, Keeler JL, Mutwalli H, Whelan K, Treasure J, Himmerich H. Gastrointestinal symptoms, gut microbiome, probiotics and prebiotics in anorexia nervosa: A review of mechanistic rationale and clinical evidence. Psychoneuroendocrinology 2023; 147:105959. [PMID: 36327759 DOI: 10.1016/j.psyneuen.2022.105959] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 09/22/2022] [Accepted: 10/20/2022] [Indexed: 11/27/2022]
Abstract
Recent research has revealed the pivotal role that the gut microbiota might play in psychiatric disorders. In anorexia nervosa (AN), the gut microbiota may be involved in pathophysiology as well as in the gastrointestinal (GI) symptoms commonly experienced. This review collates evidence for the potential role of gut microbiota in AN, including modulation of the immune system, the gut-brain axis and GI function. We examined studies comparing gut microbiota in AN with healthy controls as well as those looking at modifications in gut microbiota with nutritional treatment. Changes in energy intake and nutritional composition influence gut microbiota and may play a role in the evolution of the gut microbial picture in AN. Additionally, some evidence indicates that pre-morbid gut microbiota may influence risk of developing AN. There appear to be similarities in gut microbial composition, mechanisms of interaction and GI symptoms experienced in AN and other GI disorders such as inflammatory bowel disease and functional GI disorders. Probiotics and prebiotics have been studied in these disorders showing therapeutic effects of probiotics in some cases. Additionally, some evidence exists for the therapeutic benefits of probiotics in depression and anxiety, commonly seen as co-morbidities in AN. Moreover, preliminary evidence for the use of probiotics in AN has shown positive effects on immune modulation. Based on these findings, we discuss the potential therapeutic role for probiotics in ameliorating symptoms in AN.
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Affiliation(s)
- Namrata Dhopatkar
- South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Monks Orchard Road, Beckenham BR3 3BX, UK.
| | - Johanna Louise Keeler
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK.
| | - Hiba Mutwalli
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK.
| | - Kevin Whelan
- Department of Nutritional Sciences, King's College London, London SE1 9NH, UK.
| | - Janet Treasure
- South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Monks Orchard Road, Beckenham BR3 3BX, UK; Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK.
| | - Hubertus Himmerich
- South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Monks Orchard Road, Beckenham BR3 3BX, UK; Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK.
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18
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Sawicka-Gutaj N, Gruszczyński D, Zawalna N, Nijakowski K, Muller I, Karpiński T, Salvi M, Ruchała M. Microbiota Alterations in Patients with Autoimmune Thyroid Diseases: A Systematic Review. Int J Mol Sci 2022; 23:13450. [PMID: 36362236 PMCID: PMC9654225 DOI: 10.3390/ijms232113450] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/23/2022] [Accepted: 11/01/2022] [Indexed: 08/18/2023] Open
Abstract
Autoimmune thyroid diseases (AITDs) are chronic autoimmune disorders that cause impaired immunoregulation, leading to specific immune responses against thyroid antigens. Graves' disease (GD) and Hashimoto's thyroiditis (HT) are the major forms of AITDs. Increasing evidence suggests a possible role of microbiota alterations in the pathogenesis and progression of AITDs. This systematic review was designed to address the following question: "Is microbiota altered in patients with AITDs?" After screening the selected studies using the inclusion and exclusion criteria, 16 studies were included in this review (in accordance with PRISMA statement guidelines). A meta-analysis revealed that patients with HT showed significantly higher values of diversity indices (except for the Simpson index) and that patients with GD showed significant tendencies toward lower values of all assessed indices compared with healthy subjects. However, the latter demonstrated a higher relative abundance of Bacteroidetes and Actinobacteria at the phylum level and thus Prevotella and Bifidobacterium at the genus level, respectively. Thyroid peroxidase antibodies showed the most significant positive and negative correlations between bacterial levels and thyroid functional parameters. In conclusion, significant alterations in the diversity and composition of the intestinal microbiota were observed in both GD and HT patients.
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Affiliation(s)
- Nadia Sawicka-Gutaj
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland
| | - Dawid Gruszczyński
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland
| | - Natalia Zawalna
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland
| | - Kacper Nijakowski
- Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, 60-812 Poznan, Poland
| | - Ilaria Muller
- Department of Endocrinology, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Graves’ Orbitopathy Center, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Tomasz Karpiński
- Department of Medical Microbiology, Poznan University of Medical Sciences, 61-712 Poznan, Poland
| | - Mario Salvi
- Department of Endocrinology, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Graves’ Orbitopathy Center, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Marek Ruchała
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland
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19
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Visvanathan R, Williamson G. Review of factors affecting citrus polyphenol bioavailability and their importance in designing in vitro, animal, and intervention studies. Compr Rev Food Sci Food Saf 2022; 21:4509-4545. [PMID: 36183163 DOI: 10.1111/1541-4337.13057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 07/07/2022] [Accepted: 09/07/2022] [Indexed: 01/28/2023]
Abstract
Evidence from in vitro, animal, and human studies links citrus fruit consumption with several health-promoting effects. However, many in vitro studies disregard bioavailability data, a key factor determining responses in humans. Citrus (poly)phenol metabolism and bioavailability follow specific pathways that vary widely among individuals and are affected by several intrinsic (age, sex, gut microbiota, metabolic state, genetic polymorphisms) and extrinsic (food matrix, co-consumed food, (poly)phenol solubility, dose, food processing, lifestyle) factors. The gut microbiota is crucial to both absorption of citrus (poly)phenols and the production of catabolites, and absorption of both takes place mostly in the colon. Citrus (poly)phenol absorption can reach up to 100% in some individuals when the sum of the gut microbiota products are taken into account. This review emphasizes the importance of understanding citrus (poly)phenol absorption, metabolism, and bioavailability using evidence primarily derived from human studies in designing in vitro, animal, and further human clinical studies.
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Affiliation(s)
- Rizliya Visvanathan
- Department of Nutrition, Dietetics, and Food, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Notting Hill, VIC, Australia
| | - Gary Williamson
- Department of Nutrition, Dietetics, and Food, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Notting Hill, VIC, Australia
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20
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Zhang J, Yi C, Han J, Ming T, Zhou J, Lu C, Li Y, Wang Z, Su X. Dose effect of high-docosahexaenoic acid tuna oil on dysbiosis in high-fat diet mice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:5531-5543. [PMID: 35368101 DOI: 10.1002/jsfa.11908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 03/15/2022] [Accepted: 04/03/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND The health benefits of tuna oil, which is different from the fish oil commonly studied, and its higher docosahexaenoic acid (DHA) content, have attracted much scientific attention in recent years. In this study, prepared tuna oil with higher DHA (HDTO) content was employed. It was the first to integrate microbiome and metabolome from a dose-effect perspective to investigate the influence of HDTO on gut dysbiosis and metabolic disorders in diet-induced obese mice. RESULTS Higher DHA tuna oil was effective in reversing high-fat-diet-induced metabolic disorders and altering the composition and function of gut microbiota, but these effects were not uniformly dose dependent. The flora and metabolites that were targeted to be regulated by HDTO supplementation were Prevotella, Bifidobacterium, Olsenella, glycine, l-aspartate, l-serine, l-valine, l-isoleucine, l-threonine, l-tyrosine, glyceric acid, glycerol, butanedioic acid, and citrate, respectively. Functional pathway analysis revealed that alterations in these metabolic biomarkers were associated with six main metabolic pathways: glycine, serine, and threonine metabolism; glycerolipid metabolism; glyoxylate and dicarboxylate metabolism; alanine, aspartate, and glutamate metabolism; aminoacyl-tRNA biosynthesis, and the citrate cycle (TCA cycle). CONCLUSION Various doses of HDTO could attenuate endogenous disorders to varying degrees by regulating multiple perturbed pathways to the normal state. This explicit dose research for novel fish oil with high-DHA will provide a valuable reference for those seeking to exploit its clinical therapeutic potential. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Jing Zhang
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Faculty of Food Science, Zhejiang Pharmaceutical College, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Congmin Yi
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Jiaojiao Han
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Tinghong Ming
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Jun Zhou
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Chenyang Lu
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Ye Li
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
| | - Zhonghua Wang
- Shandong beiyou biotechnology Co., Ltd., Weifang, China
| | - Xiurong Su
- State Key Laboratory for Quality and Safety of Argo-products, Ningbo University, Ningbo, China
- School of Marine Science, Ningbo University, Ningbo, China
- Key Laboratory of Aquacultral Biotechnology, (Ningbo University) Ministry of Education, Ningbo University, Ningbo, China
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21
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Di Profio E, Magenes VC, Fiore G, Agostinelli M, La Mendola A, Acunzo M, Francavilla R, Indrio F, Bosetti A, D’Auria E, Borghi E, Zuccotti G, Verduci E. Special Diets in Infants and Children and Impact on Gut Microbioma. Nutrients 2022; 14:nu14153198. [PMID: 35956374 PMCID: PMC9370825 DOI: 10.3390/nu14153198] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 07/29/2022] [Accepted: 08/01/2022] [Indexed: 02/07/2023] Open
Abstract
Gut microbiota is a complex system that starts to take shape early in life. Several factors influence the rise of microbial gut colonization, such as term and mode of delivery, exposure to antibiotics, maternal diet, presence of siblings and family members, pets, genetics, local environment, and geographical location. Breastfeeding, complementary feeding, and later dietary patterns during infancy and toddlerhood are major players in the proper development of microbial communities. Nonetheless, if dysbiosis occurs, gut microbiota may remain impaired throughout life, leading to deleterious consequences, such as greater predisposition to non-communicable diseases, more susceptible immune system and altered gut–brain axis. Children with specific diseases (i.e., food allergies, inborn errors of metabolism, celiac disease) need a special formula and later a special diet, excluding certain foods or nutrients. We searched on PubMed/Medline, Scopus and Embase for relevant pediatric studies published over the last twenty years on gut microbiota dietary patterns and excluded case reports or series and letters. The aim of this review is to highlight the changes in the gut microbiota in infants and children fed with special formula or diets for therapeutic requirements and, its potential health implications, with respect to gut microbiota under standard diets.
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Affiliation(s)
- Elisabetta Di Profio
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, Università di Milano, 20154 Milan, Italy
| | - Vittoria Carlotta Magenes
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, Università di Milano, 20154 Milan, Italy
| | - Giulia Fiore
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, Università di Milano, 20154 Milan, Italy
| | - Marta Agostinelli
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, Università di Milano, 20154 Milan, Italy
| | - Alice La Mendola
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, Università di Milano, 20154 Milan, Italy
| | - Miriam Acunzo
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, Università di Milano, 20154 Milan, Italy
| | - Ruggiero Francavilla
- Pediatric Section, Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy
| | - Flavia Indrio
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy
| | - Alessandra Bosetti
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, Università di Milano, 20154 Milan, Italy
| | - Enza D’Auria
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, Università di Milano, 20154 Milan, Italy
- Correspondence:
| | - Elisa Borghi
- Department of Health Sciences, University of Milan, 20142 Milan, Italy
| | - Gianvincenzo Zuccotti
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, Università di Milano, 20154 Milan, Italy
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, 20144 Milan, Italy
- Pediatric Clinical Research Center, Fondazione Romeo ed Enrica Invernizzi, University of Milan, 20122 Milan, Italy
| | - Elvira Verduci
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, Università di Milano, 20154 Milan, Italy
- Department of Health Sciences, University of Milan, 20142 Milan, Italy
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22
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Miao Z, Du W, Xiao C, Su C, Gou W, Shen L, Zhang J, Fu Y, Jiang Z, Wang Z, Jia X, Zheng JS, Wang H. Gut microbiota signatures of long-term and short-term plant-based dietary pattern and cardiometabolic health: a prospective cohort study. BMC Med 2022; 20:204. [PMID: 35701845 PMCID: PMC9199182 DOI: 10.1186/s12916-022-02402-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 05/11/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND The interplay among the plant-based dietary pattern, gut microbiota, and cardiometabolic health is still unclear, and evidence from large prospective cohorts is rare. We aimed to examine the association of long-term and short-term plant-based dietary patterns with gut microbiota and to assess the prospective association of the identified microbial features with cardiometabolic biomarkers. METHODS Using a population-based prospective cohort study: the China Health and Nutrition Survey, we included 3096 participants from 15 provinces/megacities across China. We created an overall plant-based diet index (PDI), a healthful plant-based diet index (hPDI), and an unhealthful plant-based diet index (uPDI). The average PDIs were calculated using repeat food frequency questionnaires collected in 2011 and 2015 to represent a long-term dietary pattern. Short-term dietary pattern was estimated using 3-day 24-h dietary recalls collected in 2015. Fecal samples were collected in 2015 and measured using 16S rRNA sequencing. We investigated the association of long-term and short-term plant-based dietary patterns with gut microbial diversity, taxonomies, and functional pathways using linear mixed models. Furthermore, we assessed the prospective associations between the identified gut microbiome signatures and cardiometabolic biomarkers (measured in 2018) using linear regression. RESULTS We found a significant association of short-term hPDI with microbial alpha-diversity. Both long-term and short-term plant-based diet indices were correlated with microbial overall structure, whereas long-term estimates explained more variance. Long-term and short-term PDIs were differently associated with microbial taxonomic composition, yet only microbes related to long-term estimates showed association with future cardiometabolic biomarkers. Higher long-term PDI was associated with the lower relative abundance of Peptostreptococcus, while this microbe was positively correlated with the high-sensitivity C-reactive protein and inversely associated with high-density lipoprotein cholesterol. CONCLUSIONS We found shared and distinct gut microbial signatures of long-term and short-term plant-based dietary patterns. The identified microbial genera may provide insights into the protective role of long-term plant-based dietary pattern for cardiometabolic health, and replication in large independent cohorts is needed.
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Affiliation(s)
- Zelei Miao
- College of Life Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, 18 Shilongshan Rd, Cloud Town, Hangzhou, China
| | - Wenwen Du
- Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, China
- Key Laboratory of Trace Element Nutrition, National Health Commission, Beijing, China
| | - Congmei Xiao
- College of Life Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, 18 Shilongshan Rd, Cloud Town, Hangzhou, China
- Westlake Intelligent Biomarker Discovery Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
| | - Chang Su
- Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, China
- Key Laboratory of Trace Element Nutrition, National Health Commission, Beijing, China
| | - Wanglong Gou
- College of Life Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, 18 Shilongshan Rd, Cloud Town, Hangzhou, China
- Westlake Intelligent Biomarker Discovery Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
| | - Luqi Shen
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, 18 Shilongshan Rd, Cloud Town, Hangzhou, China
- Westlake Intelligent Biomarker Discovery Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Jiguo Zhang
- Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, China
- Key Laboratory of Trace Element Nutrition, National Health Commission, Beijing, China
| | - Yuanqing Fu
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, 18 Shilongshan Rd, Cloud Town, Hangzhou, China
- Westlake Intelligent Biomarker Discovery Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Zengliang Jiang
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, 18 Shilongshan Rd, Cloud Town, Hangzhou, China
- Westlake Intelligent Biomarker Discovery Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Zhihong Wang
- Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, China
- Key Laboratory of Trace Element Nutrition, National Health Commission, Beijing, China
| | - Xiaofang Jia
- Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, China
- Key Laboratory of Trace Element Nutrition, National Health Commission, Beijing, China
| | - Ju-Sheng Zheng
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, 18 Shilongshan Rd, Cloud Town, Hangzhou, China.
- Westlake Intelligent Biomarker Discovery Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China.
| | - Huijun Wang
- Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, China.
- Key Laboratory of Trace Element Nutrition, National Health Commission, Beijing, China.
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23
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Park J, Park Y, Yu J. Can Multiple Attributes of Vegan Restaurants Affect the Behavioral Intentions by Customer Psychological Factors? Front Nutr 2022; 9:902498. [PMID: 35769378 PMCID: PMC9234452 DOI: 10.3389/fnut.2022.902498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/11/2022] [Indexed: 11/23/2022] Open
Abstract
Over the past decade, there has been an increased interest in veganism in several nations across the world. In 2021, there were around 79 million vegans. While veganism is growing, it still covers only 1% of the global population. But if the diet keeps its steady growth rate, it's predicted to increase to one in 10 people within the next 10 years. However, in addition to the traditional, though poorly studied, multiple attributes ascribed to vegan restaurants, there may be other factors influencing the approach intentions of vegan restaurant customers. Within this context, this study investigated the psychological resilience associated with customer engagement (identification, enthusiasm, attention, absorption, and interaction) with the vegan movement for Korean vegan customers. The analysis was conducted using SPSS 22.0 and AMOS 22.0. The results revealed that numerous attributes ascribed to vegan restaurants positively affected customer engagement, especially identification, and strongly influenced psychological resilience as well. However, the identification customer engagement factor did not significantly affect the approach intentions of vegan restaurant customers. The study results suggested that when eliciting customer engagement to increase approach intentions toward vegan restaurants, it is necessary to emphasize customer psychological resilience, enthusiasm, attention, absorption, and interaction. This study contributes to food and consumer behavior literature on the approach intentions toward vegan restaurants.
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Affiliation(s)
- Junghyun Park
- College of Hospitality and Tourism Management, Sejong University, Seoul, South Korea
| | - Yunmi Park
- Department of Aviation Service, Cheongju University, Cheongju-si, South Korea
| | - Jongsik Yu
- College of Business Division of Tourism and Hotel Management, Cheongju University, Cheongju-si, South Korea
- *Correspondence: Jongsik Yu
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24
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Morelli G, Patuzzi I, Losasso C, Ricci A, Contiero B, Andrighetto I, Ricci R. Characterization of intestinal microbiota in normal weight and overweight Border Collie and Labrador Retriever dogs. Sci Rep 2022; 12:9199. [PMID: 35655089 PMCID: PMC9163050 DOI: 10.1038/s41598-022-13270-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/12/2022] [Indexed: 11/08/2022] Open
Abstract
Obesity in dogs is an emerging issue that affects canine health and well-being. Its development is ascribed to several factors, including genetic predisposition and dietary management, and recent evidence suggests that intestinal microbiota may be involved as well. Previous works have shown obesity to be linked to significant changes in gut microbiota composition in humans and mice, but only limited information is available on the role played by canine gut microbiota. The aim of this exploratory study was to investigate whether composition of canine faecal microbiota may be influenced by overweight condition and breed. All the enrolled companion dogs were young adults, intact, healthy, and fed commercial extruded pet food; none had received antibiotics, probiotics or immunosuppressant drugs in the previous six months. Labrador Retriever (LR) and Border Collie (BC) were chosen as reference breeds and Body Condition Score (BCS) on a 9-point scale as reference method for evaluating body fat. The faecal microbial communities of 15 lean (BCS 4-5/9; 7 LRs and 8 BCs) and 14 overweight (BCS > 5/9; 8 LRs and 6 BCs) family dogs were analysed using 16S rRNA gene sequencing. Moreover, for each dog, the daily intake of energy (kcal/d) and dietary macronutrients (g/d) were calculated according to an accurate feeding history collection. Firmicutes and Bacteroidetes resulted the predominant phyla (51.5 ± 10.0% and 33.4 ± 8.5%, respectively) in all dogs. Bioinformatic and statistical analysis revealed that no bacterial taxon differed significantly based on body condition, except for genus Allisonella (p < 0.05); BC gut microbiota was richer (p < 0.05) in bacteria belonging to phyla Actinobacteria (family Coriobacteriaceae in particular) and Firmicutes (Allobaculum and Roseburia genera). No remarkable differences were recorded either for diversity indices (i.e., alpha diversity, p > 0.10) or for divergence within the sample set (i.e., beta diversity, p > 0.05). PERMANOVA tests performed on single factors demonstrated the tendency of dietary protein to influence the recruited dogs' microbiota beta-diversity at amplicon sequence variant level (p = 0.08). In conclusion, the faecal microbiota of dogs involved in this exploratory study showed no major variations based on body condition. However, our findings suggested that certain bacterial taxa previously acknowledged in obesity-related studies may be detected in dissimilar amounts depending on canine breed.
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Affiliation(s)
- Giada Morelli
- Department of Animal Medicine, Production and Health, University of Padua, 35020, Legnaro, PD, Italy.
| | - Ilaria Patuzzi
- Laboratory of Microbial Ecology and Genomics, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, PD, Italy
- Research and Development Division, EuBiome S.R.L., 35129, Padua, Italy
| | - Carmen Losasso
- Laboratory of Microbial Ecology and Genomics, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, PD, Italy
| | - Antonia Ricci
- Laboratory of Microbial Ecology and Genomics, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, PD, Italy
| | - Barbara Contiero
- Department of Animal Medicine, Production and Health, University of Padua, 35020, Legnaro, PD, Italy
| | - Igino Andrighetto
- Department of Animal Medicine, Production and Health, University of Padua, 35020, Legnaro, PD, Italy
| | - Rebecca Ricci
- Department of Animal Medicine, Production and Health, University of Padua, 35020, Legnaro, PD, Italy
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25
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Zhao F, Wang C, Song S, Fang C, Kristiansen K, Li C. Intake of a Chicken Protein-Based or Soy Protein-Based Diet Differentially Affects Growth Performance, Absorptive Capacity, and Gut Microbiota in Young Rats. Mol Nutr Food Res 2022; 66:e2101124. [PMID: 35583811 DOI: 10.1002/mnfr.202101124] [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: 12/12/2021] [Revised: 04/12/2022] [Indexed: 11/06/2022]
Abstract
SCOPE Both plant and animal products provide protein for human demands. However, the effect of protein sources on the physiological responses and the composition and functions of the gut microbiota during the early stage of life have received little attention. METHODS AND RESULTS In the present study, chicken protein and soy protein are fed to young weaning rats for 14 days based on the AIN-93G diet formulation. The growth performance is recorded, and the morphology of the small intestine is analyzed to estimate the absorptive capacity. Shotgun metagenomic sequencing is applied to analyze the cecal microbiota. The chicken protein-based diet (CHPD) enhances growth performance and absorptive capacity in young rats compared to the soy protein-based diet (SPD). The CHPD maintains higher levels of Lactobacillus species, associated with glutathione synthesis. CONCLUSION The CHPD seems favorable for young growing rats in relation to growth performance and absorptive capacity, correlated with changes in the composition and functional potential of the gut microbiota.
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Affiliation(s)
- Fan Zhao
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, 2100, Denmark
| | - Chong Wang
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, 2100, Denmark.,Key Laboratory of Meat Processing and Quality Control, MOE; Key Laboratory of Meat Processing, MARA; Jiangsu Collaborative Innovation Centre of Meat Production and Processing, Quality and Safety Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Shangxin Song
- School of Food Science, Nanjing Xiaozhuang University, 3601 Hongjing Road, Nanjing, 211171, P. R. China
| | - Chao Fang
- BGI-Shenzhen, Shenzhen, 518083, P. R. China
| | - Karsten Kristiansen
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, 2100, Denmark.,BGI-Shenzhen, Shenzhen, 518083, P. R. China.,Institute of Metagenomics, Qingdao-Europe Advanced Institute for Life Sciences, BGI-Qingdao, Qingdao, 166555, P. R. China
| | - Chunbao Li
- Key Laboratory of Meat Processing and Quality Control, MOE; Key Laboratory of Meat Processing, MARA; Jiangsu Collaborative Innovation Centre of Meat Production and Processing, Quality and Safety Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P. R. China
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26
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Choi Y, Hoops SL, Thoma CJ, Johnson AJ. A Guide to Dietary Pattern-Microbiome Data Integration. J Nutr 2022; 152:1187-1199. [PMID: 35348723 PMCID: PMC9071309 DOI: 10.1093/jn/nxac033] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/27/2022] [Accepted: 02/11/2022] [Indexed: 11/13/2022] Open
Abstract
The human gut microbiome is linked to metabolic and cardiovascular disease risk. Dietary modulation of the human gut microbiome offers an attractive pathway to manipulate the microbiome to prevent microbiome-related disease. However, this promise has not been realized. The complex system of diet and microbiome interactions is poorly understood. Integrating observational human diet and microbiome data can help researchers and clinicians untangle the complex systems of interactions that predict how the microbiome will change in response to foods. The use of dietary patterns to assess diet-microbiome relations holds promise to identify interesting associations and result in findings that can directly translate into actionable dietary intake recommendations and eating plans. In this article, we first highlight the complexity inherent in both dietary and microbiome data and introduce the approaches generally used to explore diet and microbiome simultaneously in observational studies. Second, we review the food group and dietary pattern-microbiome literature focusing on dietary complexity-moving beyond nutrients. Our review identified a substantial and growing body of literature that explores links between the microbiome and dietary patterns. However, there was very little standardization of dietary collection and assessment methods across studies. The 54 studies identified in this review used ≥7 different methods to assess diet. Coupled with the variation in final dietary parameters calculated from dietary data (e.g., dietary indices, dietary patterns, food groups, etc.), few studies with shared methods and assessment techniques were available for comparison. Third, we highlight the similarities between dietary and microbiome data structures and present the possibility that multivariate and compositional methods, developed initially for microbiome data, could have utility when applied to dietary data. Finally, we summarize the current state of the art for diet-microbiome data integration and highlight ways dietary data could be paired with microbiome data in future studies to improve the detection of diet-microbiome signals.
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Affiliation(s)
- Yuni Choi
- Division of Epidemiology and Community Health, University of Minnesota, School of Public Health, Minneapolis, MN
| | - Susan L Hoops
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, Minnesota, MN
| | - Calvin J Thoma
- BioTechnology Institute, University of Minnesota, Saint Paul, MN
| | - Abigail J Johnson
- Division of Epidemiology and Community Health, University of Minnesota, School of Public Health, Minneapolis, MN
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27
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Zeng Y, Li J, Wei C, Zhao H, Wang T. mbDenoise: microbiome data denoising using zero-inflated probabilistic principal components analysis. Genome Biol 2022; 23:94. [PMID: 35422001 PMCID: PMC9011970 DOI: 10.1186/s13059-022-02657-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 03/21/2022] [Indexed: 12/13/2022] Open
Abstract
The analysis of microbiome data has several technical challenges. In particular, count matrices contain a large proportion of zeros, some of which are biological, whereas others are technical. Furthermore, the measurements suffer from unequal sequencing depth, overdispersion, and data redundancy. These nuisance factors introduce substantial noise. We propose an accurate and robust method, mbDenoise, for denoising microbiome data. Assuming a zero-inflated probabilistic PCA (ZIPPCA) model, mbDenoise uses variational approximation to learn the latent structure and recovers the true abundance levels using the posterior, borrowing information across samples and taxa. mbDenoise outperforms state-of-the-art methods to extract the signal for downstream analyses.
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Affiliation(s)
- Yanyan Zeng
- Department of Bioinformatics and Biostatistics, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Li
- Department of Bioinformatics and Biostatistics, Shanghai Jiao Tong University, Shanghai, China
| | - Chaochun Wei
- Department of Bioinformatics and Biostatistics, Shanghai Jiao Tong University, Shanghai, China
| | - Hongyu Zhao
- Department of Biostatistics, Yale University, New Haven, CT, USA.
- SJTU-Yale Joint Center for Biostatistics and Data Science, Shanghai Jiao Tong University, Shanghai, China.
| | - Tao Wang
- Department of Bioinformatics and Biostatistics, Shanghai Jiao Tong University, Shanghai, China.
- SJTU-Yale Joint Center for Biostatistics and Data Science, Shanghai Jiao Tong University, Shanghai, China.
- Department of Statistics, School of Mathematical Sciences, Shanghai Jiao Tong University, Shanghai, China.
- Joint International Research Laboratory of Metabolic & Developmental Sciences, Shanghai Jiao Tong University, Shanghai, China.
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28
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Suryani D, Subhan Alfaqih M, Gunadi JW, Sylviana N, Goenawan H, Megantara I, Lesmana R. Type, Intensity, and Duration of Exercise as Regulator of Gut Microbiome Profile. Curr Sports Med Rep 2022; 21:84-91. [PMID: 35245243 DOI: 10.1249/jsr.0000000000000940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
ABSTRACT Gut microbiome profile is related to individual health. In metabolic syndrome, there is a change in the gut microbiome profile, indicated by an increase in the ratio of Firmicutes to Bacteroidetes. Many studies have been conducted to determine the effect of exercise on modifying the gut microbiome profile. The effectiveness of exercise is influenced by its type, intensity, and duration. Aerobic training decreases splanchnic blood flow and shortens intestinal transit time. High-intensity exercise improves mitochondrial function and increases the essential bacteria in lactate metabolism and urease production. Meanwhile, exercise duration affects the hypothalamic-pituitary-adrenal axis. All of these mechanisms are related to each other in producing the effect of exercise on the gut microbiome profile.
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Affiliation(s)
| | | | - Julia Windi Gunadi
- Department of Physiology, Faculty of Medicine, Universitas Kristen Maranatha, Bandung, INDONESIA
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29
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Xiao W, Zhang Q, Yu L, Tian F, Chen W, Zhai Q. Effects of vegetarian diet-associated nutrients on gut microbiota and intestinal physiology. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2021.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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30
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Impact of long-term dietary habits on the human gut resistome in the Dutch population. Sci Rep 2022; 12:1892. [PMID: 35115599 PMCID: PMC8814023 DOI: 10.1038/s41598-022-05817-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 01/11/2022] [Indexed: 11/08/2022] Open
Abstract
The human gut microbiome plays a central role in health and disease. Environmental factors, such as lifestyle and diet, are known to shape the gut microbiome as well as the reservoir of resistance genes that these microbes harbour; the resistome. In this study we assessed whether long-term dietary habits within a single geographical region (the Netherlands) impact the human gut resistome. Faecal samples from Dutch omnivores, pescatarians, vegetarians and vegans were analysed by metagenomic shotgun sequencing (MSS) (n = 149) and resistome capture sequencing approach (ResCap) (n = 64). Among all diet groups, 119 and 145 unique antibiotic resistance genes (ARGs) were detected by MSS or ResCap, respectively. Five or fifteen ARGs were shared between all diet groups, based on MSS and ResCap, respectively. The total number of detected ARGs by MSS or ResCap was not significantly different between the groups. MSS also revealed that vegans have a distinct microbiome composition, compared to other diet groups. Vegans had a lower abundance of Streptococcus thermophilus and Lactococcus lactis compared to pescatarians and a lower abundance of S. thermophilus when compared to omnivores. In summary, our study showed that long-term dietary habits are not associated with a specific resistome signature.
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Prochazkova M, Budinska E, Kuzma M, Pelantova H, Hradecky J, Heczkova M, Daskova N, Bratova M, Modos I, Videnska P, Splichalova P, Sowah SA, Kralova M, Henikova M, Selinger E, Klima K, Chalupsky K, Sedlacek R, Landberg R, Kühn T, Gojda J, Cahova M. Vegan Diet Is Associated With Favorable Effects on the Metabolic Performance of Intestinal Microbiota: A Cross-Sectional Multi-Omics Study. Front Nutr 2022; 8:783302. [PMID: 35071294 PMCID: PMC8777108 DOI: 10.3389/fnut.2021.783302] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 11/25/2021] [Indexed: 12/14/2022] Open
Abstract
Background and Aim: Plant-based diets are associated with potential health benefits, but the contribution of gut microbiota remains to be clarified. We aimed to identify differences in key features of microbiome composition and function with relevance to metabolic health in individuals adhering to a vegan vs. omnivore diet. Methods: This cross-sectional study involved lean, healthy vegans (n = 62) and omnivore (n = 33) subjects. We assessed their glucose and lipid metabolism and employed an integrated multi-omics approach (16S rRNA sequencing, metabolomics profiling) to compare dietary intake, metabolic health, gut microbiome, and fecal, serum, and urine metabolomes. Results: The vegans had more favorable glucose and lipid homeostasis profiles than the omnivores. Long-term reported adherence to a vegan diet affected only 14.8% of all detected bacterial genera in fecal microbiome. However, significant differences in vegan and omnivore metabolomes were observed. In feces, 43.3% of all identified metabolites were significantly different between the vegans and omnivores, such as amino acid fermentation products p-cresol, scatole, indole, methional (lower in the vegans), and polysaccharide fermentation product short- and medium-chain fatty acids (SCFAs, MCFAs), and their derivatives (higher in the vegans). Vegan serum metabolome differed markedly from the omnivores (55.8% of all metabolites), especially in amino acid composition, such as low BCAAs, high SCFAs (formic-, acetic-, propionic-, butyric acids), and dimethylsulfone, the latter two being potential host microbiome co-metabolites. Using a machine-learning approach, we tested the discriminative power of each dataset. Best results were obtained for serum metabolome (accuracy rate 91.6%). Conclusion: While only small differences in the gut microbiota were found between the groups, their metabolic activity differed substantially. In particular, we observed a significantly different abundance of fermentation products associated with protein and carbohydrate intakes in the vegans. Vegans had significantly lower abundances of potentially harmful (such as p-cresol, lithocholic acid, BCAAs, aromatic compounds, etc.) and higher occurrence of potentially beneficial metabolites (SCFAs and their derivatives).
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Affiliation(s)
- Magdalena Prochazkova
- Department of Internal Medicine, Kralovske Vinohrady University Hospital and Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Eva Budinska
- Research Centre for Toxic Compounds in the Environment, Faculty of Science, Masaryk University, Brno, Czechia
| | - Marek Kuzma
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Czech Academy of Sciences, Prague, Czechia
| | - Helena Pelantova
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Czech Academy of Sciences, Prague, Czechia
| | - Jaromir Hradecky
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czechia
| | - Marie Heczkova
- Center of Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czechia
| | - Nikola Daskova
- Center of Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czechia.,First Faculty of Medicine, Charles University, Prague, Czechia
| | - Miriam Bratova
- Center of Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czechia
| | - Istvan Modos
- Center of Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czechia
| | - Petra Videnska
- Research Centre for Toxic Compounds in the Environment, Faculty of Science, Masaryk University, Brno, Czechia
| | - Petra Splichalova
- Research Centre for Toxic Compounds in the Environment, Faculty of Science, Masaryk University, Brno, Czechia
| | - Solomon A Sowah
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Medical Faculty and University Hospital, Heidelberg University, Heidelberg, Germany
| | - Maria Kralova
- Department of Applied Mathematics and Computer Science, Masaryk University, Brno, Czechia
| | - Marina Henikova
- Department of Internal Medicine, Kralovske Vinohrady University Hospital and Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Eliska Selinger
- Department of Internal Medicine, Kralovske Vinohrady University Hospital and Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Krystof Klima
- Czech Centre for Phenogenomics, Institute of Molecular Genetics, Czech Academy of Sciences, Prague, Czechia
| | - Karel Chalupsky
- Czech Centre for Phenogenomics, Institute of Molecular Genetics, Czech Academy of Sciences, Prague, Czechia
| | - Radislav Sedlacek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics, Czech Academy of Sciences, Prague, Czechia
| | - Rikard Landberg
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Goteborg, Sweden
| | - Tilman Kühn
- Institute of Global Food Security, Queen's University Belfast, Belfast, United Kingdom.,Heidelberg Institute of Global Health (HIGH), Medical Faculty and University Hospital, Heidelberg University, Heidelberg, Germany
| | - Jan Gojda
- Department of Internal Medicine, Kralovske Vinohrady University Hospital and Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Monika Cahova
- Center of Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czechia
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32
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Jakše B. Placing a Well-Designed Vegan Diet for Slovenes. Nutrients 2021; 13:4545. [PMID: 34960098 PMCID: PMC8706043 DOI: 10.3390/nu13124545] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/14/2021] [Accepted: 12/17/2021] [Indexed: 02/06/2023] Open
Abstract
Interest in vegan diets has increased globally as well as in Slovenia. The quantity of new scientific data requires a thorough synthesis of new findings and considerations about the current reserved position of the vegan diet in Slovenia. There is frequently confusion about the benefits of vegetarian diets that are often uncritically passed on to vegan diets and vice versa. This narrative review aims to serve as a framework for a well-designed vegan diet. We present advice on how to maximize the benefits and minimize the risks associated with the vegan diet and lifestyle. We highlight the proper terminology, present the health effects of a vegan diet and emphasize the nutrients of concern. In addition, we provide guidance for implementing a well-designed vegan diet in daily life. We conducted a PubMed search, up to November 2021, for studies on key nutrients (proteins, vitamin B12, vitamin D, omega-3 long chain polyunsaturated fatty acids (eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)), calcium, iron, zinc, iodine and selenium) in vegan diets. Given the limited amount of scientific evidence, we focus primarily on the general adult population. A well-designed vegan diet that includes a wide variety of plant foods and supplementation of vitamin B12, vitamin D in the winter months and potentially EPA/DHA is safe and nutritionally adequate. It has the potential to maintain and/or to improve health. For physically active adult populations, athletes or individuals with fast-paced lifestyles, there is room for further appropriate supplementation of a conventional vegan diet according to individuals' health status, needs and goals without compromising their health. A healthy vegan lifestyle, as included in government guidelines for a healthy lifestyle, includes regular physical activity, avoidance of smoking, restriction of alcohol and appropriate sleep hygiene.
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Affiliation(s)
- Boštjan Jakše
- Department of Food Science, Biotechnical Faculty, University of Ljubljana, SI-1000 Ljubljana, Slovenia
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33
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Johansson C, Kampmann C, Nilsson A, Dicksved J, Engstrand L, Rautelin H. Genomic and Phenotypic Characteristics in Geographically Separated Clinical Campylobacter jejuni ST353CC Isolates. Microorganisms 2021; 9:2540. [PMID: 34946141 PMCID: PMC8709058 DOI: 10.3390/microorganisms9122540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/25/2021] [Accepted: 12/02/2021] [Indexed: 11/16/2022] Open
Abstract
Campylobacter jejuni fecal isolates of eight international travelers, 5 of which had traveled to Ecuador and 3 to Bangladesh, were characterized, and the possible relationship between bacterial traits and clinical symptoms was further analyzed. All eight isolates belonged to the same Multi-Locus Sequence Type clonal complex (ST353CC). The three isolates from Bangladesh were all of the same sequence type (ST-9438), and when compared to isolates of various other sequence types, they had a larger quantity of unique genetic content, higher expression levels of some putative virulence genes involved in adhesion and invasion (flpA, ciaB and iamA), and showed higher adhesion levels to human HT-29 colon cancer cells in an in vitro infection model. However, in contrast to the seemingly higher pathogenic potential of these bacterial isolates, travelers infected with the ST-9438 isolates had no or only very mild symptoms, whereas the other individuals, whose bacterial isolates seemed to have less pathogenic potential, generally reported severe symptoms. When studying the 16S rRNA gene-based fecal microbiota in samples collected prior to travel, there was an individual variation in the relative abundance of the three major bacterial phyla Actinobacteria, Bacteroidetes and Firmicutes, but there were no associations between composition and diversity of microbiota and development of severe symptoms from the infection. It remains to be confirmed by larger studies whether an individual's characteristics such as gut microbiota, might be related to the severity of symptoms in Campylobacter infections.
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Affiliation(s)
- Cecilia Johansson
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, SE-75185 Uppsala, Sweden; (C.J.); (C.K.); (A.N.)
| | - Christian Kampmann
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, SE-75185 Uppsala, Sweden; (C.J.); (C.K.); (A.N.)
| | - Anna Nilsson
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, SE-75185 Uppsala, Sweden; (C.J.); (C.K.); (A.N.)
| | - Johan Dicksved
- Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, SE-75007 Uppsala, Sweden;
| | - Lars Engstrand
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, SE-17177 Stockholm, Sweden;
| | - Hilpi Rautelin
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, SE-75185 Uppsala, Sweden; (C.J.); (C.K.); (A.N.)
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34
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Craig WJ, Mangels AR, Fresán U, Marsh K, Miles FL, Saunders AV, Haddad EH, Heskey CE, Johnston P, Larson-Meyer E, Orlich M. The Safe and Effective Use of Plant-Based Diets with Guidelines for Health Professionals. Nutrients 2021; 13:4144. [PMID: 34836399 PMCID: PMC8623061 DOI: 10.3390/nu13114144] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 12/13/2022] Open
Abstract
Plant-based diets, defined here as including both vegan and lacto-ovo-vegetarian diets, are growing in popularity throughout the Western world for various reasons, including concerns for human health and the health of the planet. Plant-based diets are more environmentally sustainable than meat-based diets and have a reduced environmental impact, including producing lower levels of greenhouse gas emissions. Dietary guidelines are normally formulated to enhance the health of society, reduce the risk of chronic diseases, and prevent nutritional deficiencies. We reviewed the scientific data on plant-based diets to summarize their preventative and therapeutic role in cardiovascular disease, cancer, diabetes, obesity, and osteoporosis. Consuming plant-based diets is safe and effective for all stages of the life cycle, from pregnancy and lactation, to childhood, to old age. Plant-based diets, which are high in fiber and polyphenolics, are also associated with a diverse gut microbiota, producing metabolites that have anti-inflammatory functions that may help manage disease processes. Concerns about the adequate intake of a number of nutrients, including vitamin B12, calcium, vitamin D, iron, zinc, and omega-3 fats, are discussed. The use of fortified foods and/or supplements as well as appropriate food choices are outlined for each nutrient. Finally, guidelines are suggested for health professionals working with clients consuming plant-based diets.
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Affiliation(s)
- Winston J. Craig
- Center for Nutrition, Healthy Lifestyles, and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA 92354, USA; (F.L.M.); (E.H.H.); (C.E.H.); (P.J.)
| | | | - Ujué Fresán
- eHealth Group, Instituto de Salud Global Barcelona (ISGlobal), 08036 Barcelona, Spain;
| | - Kate Marsh
- Private Practice, Chatswood, NSW 2067, Australia;
| | - Fayth L. Miles
- Center for Nutrition, Healthy Lifestyles, and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA 92354, USA; (F.L.M.); (E.H.H.); (C.E.H.); (P.J.)
- School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA;
| | - Angela V. Saunders
- Nutrition Insights, Sanitarium Health Food Company, Berkeley Vale, NSW 2261, Australia;
| | - Ella H. Haddad
- Center for Nutrition, Healthy Lifestyles, and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA 92354, USA; (F.L.M.); (E.H.H.); (C.E.H.); (P.J.)
| | - Celine E. Heskey
- Center for Nutrition, Healthy Lifestyles, and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA 92354, USA; (F.L.M.); (E.H.H.); (C.E.H.); (P.J.)
| | - Patricia Johnston
- Center for Nutrition, Healthy Lifestyles, and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA 92354, USA; (F.L.M.); (E.H.H.); (C.E.H.); (P.J.)
| | - Enette Larson-Meyer
- Human Nutrition, Foods, and Exercise Virginia Tech, Blacksburg, VA 24061, USA;
| | - Michael Orlich
- School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA;
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35
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Shock T, Badang L, Ferguson B, Martinez-Guryn K. The interplay between diet, gut microbes, and host epigenetics in health and disease. J Nutr Biochem 2021; 95:108631. [PMID: 33789148 PMCID: PMC8355029 DOI: 10.1016/j.jnutbio.2021.108631] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/31/2021] [Accepted: 03/05/2021] [Indexed: 12/11/2022]
Abstract
The mechanisms linking the function of microbes to host health are becoming better defined but are not yet fully understood. One recently explored mechanism involves microbe-mediated alterations in the host epigenome. Consumption of specific dietary components such as fiber, glucosinolates, polyphenols, and dietary fat has a significant impact on gut microbiota composition and function. Microbial metabolism of these dietary components regulates important epigenetic functions that ultimately influences host health. Diet-mediated alterations in the gut microbiome regulate the substrates available for epigenetic modifications like DNA methylation or histone methylation and/or acetylation. In addition, generation of microbial metabolites such as butyrate inhibits the activity of core epigenetic enzymes like histone deacetylases (HDACs). Reciprocally, the host epigenome also influences gut microbial composition. Thus, complex interactions exist between these three factors. This review comprehensively examines the interplay between diet, gut microbes, and host epigenetics in modulating host health. Specifically, the dietary impact on gut microbiota structure and function that in-turn regulates host epigenetics is evaluated in terms of promoting protection from disease development.
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Affiliation(s)
- Tori Shock
- Biomedical Sciences Program, Midwestern University, Downers Grove, IL, USA
| | - Luis Badang
- Biomedical Sciences Program, Midwestern University, Downers Grove, IL, USA
| | - Bradley Ferguson
- Department of Nutrition, University of Nevada Reno, Reno, NV, USA; Center of Biomedical Research Excellence for Molecular and Cellular Signal Transduction in the Cardiovascular System, University of Nevada Reno, Reno, NV, USA
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36
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The Metabolism of Glucosinolates by Gut Microbiota. Nutrients 2021; 13:nu13082750. [PMID: 34444909 PMCID: PMC8401010 DOI: 10.3390/nu13082750] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/30/2021] [Accepted: 08/08/2021] [Indexed: 02/08/2023] Open
Abstract
Glucosinolates (GLS) and their derivatives are secondary plant metabolites abundant in Brassicaceae. Due to the enzymatic reaction between GLS and myrosinase enzyme, characteristic compounds with a pungent taste are formed, used by plants to defend themselves against insect herbivores. These GLS derivatives have an important impact on human health, including anti-inflammation and anti-cancer effects. However, GLS derivatives' formation needs previous enzymatic reactions catalyzed by myrosinase enzyme. Many of the brassica-based foods are processed at a high temperature that inactivates enzymes, hindering its bioavailability. In the last decade, several studies showed that the human gut microbiome can provide myrosinase activity that potentially can raise the beneficial effects of consumption of vegetables rich in GLS. The variability of the human gut microbiome (HGM) in human populations and the diverse intake of GLS through the diet may lead to greater variability of the real dose of pro-healthy compounds absorbed by the human body. The exploitation of the genetic and biochemical potential of HGM and correct ecological studies of both isolated strains and mixed population are of great interest. This review focuses on the most recent advances in this field.
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37
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Koponen KK, Salosensaari A, Ruuskanen MO, Havulinna AS, Männistö S, Jousilahti P, Palmu J, Salido R, Sanders K, Brennan C, Humphrey GC, Sanders JG, Meric G, Cheng S, Inouye M, Jain M, Niiranen TJ, Valsta LM, Knight R, Salomaa VV. Associations of healthy food choices with gut microbiota profiles. Am J Clin Nutr 2021; 114:605-616. [PMID: 34020448 PMCID: PMC8326043 DOI: 10.1093/ajcn/nqab077] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 02/25/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Diet has a major influence on the human gut microbiota, which has been linked to health and disease. However, epidemiological studies on associations of a healthy diet with the microbiota utilizing a whole-diet approach are still scant. OBJECTIVES To assess associations between healthy food choices and human gut microbiota composition, and to determine the strength of association with functional potential. METHODS This population-based study sample consisted of 4930 participants (ages 25-74; 53% women) in the FINRISK 2002 study. Intakes of recommended foods were assessed using a food propensity questionnaire, and responses were transformed into healthy food choices (HFC) scores. Microbial diversity (alpha diversity) and compositional differences (beta diversity) and their associations with the HFC score and its components were assessed using linear regression. Multiple permutational multivariate ANOVAs were run from whole-metagenome shallow shotgun-sequenced samples. Associations between specific taxa and HFC were analyzed using linear regression. Functional associations were derived from Kyoto Encyclopedia of Genes and Genomes orthologies with linear regression models. RESULTS Both microbial alpha diversity (β/SD, 0.044; SE, 6.18 × 10-5; P = 2.21 × 10-3) and beta diversity (R2, 0.12; P ≤ 1.00 × 10-3) were associated with the HFC score. For alpha diversity, the strongest associations were observed for fiber-rich breads, poultry, fruits, and low-fat cheeses (all positive). For beta diversity, the most prominent associations were observed for vegetables, followed by berries and fruits. Genera with fiber-degrading and SCFA-producing capacities were positively associated with the HFC score. The HFC score was associated positively with functions such as SCFA metabolism and synthesis, and inversely with functions such as fatty acid biosynthesis and the sulfur relay system. CONCLUSIONS Our results from a large, population-based survey confirm and extend findings of other, smaller-scale studies that plant- and fiber-rich dietary choices are associated with a more diverse and compositionally distinct microbiota, and with a greater potential to produce SCFAs.
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Affiliation(s)
- Kari K Koponen
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Aaro Salosensaari
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Turku, Finland
- Department of Future Technologies, University of Turku, Turku, Finland
| | - Matti O Ruuskanen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Aki S Havulinna
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
- Institute for Molecular Medicine Finland, Helsinki, Finland
| | - Satu Männistö
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Pekka Jousilahti
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Joonatan Palmu
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Turku, Finland
- Department of Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Rodolfo Salido
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Karenina Sanders
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Caitriona Brennan
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Gregory C Humphrey
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Jon G Sanders
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
- Cornell Institute for Host-Microbe Interaction and Disease, Cornell University, Ithaca, NY, USA
| | - Guillaume Meric
- Department of Infectious Diseases, Central Clinical School, Monash University, Melbourne, Australia
- Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Susan Cheng
- Division of Cardiology, Brigham and Women's Hospital, Boston, MA, USA
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Michael Inouye
- Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, Australia
- Cambridge Baker Systems Genomics Initiative, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Mohit Jain
- Departments of Medicine and Pharmacology, University of California San Diego, La Jolla, CA, USA
| | - Teemu J Niiranen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Turku, Finland
- Department of Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Liisa M Valsta
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Rob Knight
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Veikko V Salomaa
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
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Berding K, Vlckova K, Marx W, Schellekens H, Stanton C, Clarke G, Jacka F, Dinan TG, Cryan JF. Diet and the Microbiota-Gut-Brain Axis: Sowing the Seeds of Good Mental Health. Adv Nutr 2021; 12:1239-1285. [PMID: 33693453 PMCID: PMC8321864 DOI: 10.1093/advances/nmaa181] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 02/06/2023] Open
Abstract
Over the past decade, the gut microbiota has emerged as a key component in regulating brain processes and behavior. Diet is one of the major factors involved in shaping the gut microbiota composition across the lifespan. However, whether and how diet can affect the brain via its effects on the microbiota is only now beginning to receive attention. Several mechanisms for gut-to-brain communication have been identified, including microbial metabolites, immune, neuronal, and metabolic pathways, some of which could be prone to dietary modulation. Animal studies investigating the potential of nutritional interventions on the microbiota-gut-brain axis have led to advancements in our understanding of the role of diet in this bidirectional communication. In this review, we summarize the current state of the literature triangulating diet, microbiota, and host behavior/brain processes and discuss potential underlying mechanisms. Additionally, determinants of the responsiveness to a dietary intervention and evidence for the microbiota as an underlying modulator of the effect of diet on brain health are outlined. In particular, we emphasize the understudied use of whole-dietary approaches in this endeavor and the need for greater evidence from clinical populations. While promising results are reported, additional data, specifically from clinical cohorts, are required to provide evidence-based recommendations for the development of microbiota-targeted, whole-dietary strategies to improve brain and mental health.
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Affiliation(s)
| | | | - Wolfgang Marx
- Deakin University, iMPACT – the Institute for Mental and Physical Health and Clinical Translation, Food & Mood Centre, School of Medicine, Barwon Health, Geelong, VIC,Australia
| | - Harriet Schellekens
- APC Microbiome Ireland, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Catherine Stanton
- APC Microbiome Ireland, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Sciences, University College Cork, Cork, Ireland
| | - Felice Jacka
- Deakin University, iMPACT – the Institute for Mental and Physical Health and Clinical Translation, Food & Mood Centre, School of Medicine, Barwon Health, Geelong, VIC,Australia
- Centre for Adolescent Health, Murdoch Children's Research Institute, Parkville, VIC, Australia
- Black Dog Institute, Randwick, NSW, Australia
- College of Public Health, Medical & Veterinary Sciences, James Cook University, Douglas, QLD, Australia
| | - Timothy G Dinan
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Sciences, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
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39
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Losno EA, Sieferle K, Perez-Cueto FJA, Ritz C. Vegan Diet and the Gut Microbiota Composition in Healthy Adults. Nutrients 2021; 13:nu13072402. [PMID: 34371912 PMCID: PMC8308632 DOI: 10.3390/nu13072402] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 11/17/2022] Open
Abstract
The human gut microbiota are the microorganisms (generally bacteria and archaea) that live in the digestive tracts of humans. Due to their numerous functions, the gut microbiota can be considered a virtual organ of the body, playing a pivotal role in health maintenance. Dietary habits contribute to gut microbiota composition, and evidence from observational and intervention studies suggest that vegan diets may promote health, potentially through affecting the diverse ecosystem of beneficial bacteria in the gut. A systematic literature search was conducted on PubMed and Scopus to identify studies investigating the microbiota composition in vegans. Vegans are defined as people excluding food products that are derived from animals from their diet. Nine observational studies were identified. The main outcome of the systematic review was an increase in Bacteroidetes on the phylum level and a higher abundance of Prevotella on the genus level. In conclusion, the present systematic literature review highlighted some benefits of a vegan diet but also demonstrated the complexity of evaluating results from gut microbiota research. The available evidence only consisted of cross-sectional studies, therefore suggesting the need for well-designed randomised controlled trials. Furthermore, the quality assessment of the studies included in the review suggested a lack of standardised and validated methods for participant selection as well as for faecal sampling and faecal analysis.
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Affiliation(s)
- Emily A. Losno
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark;
- Correspondence: (E.A.L.); (K.S.); Tel.: +45-52655220 (E.A.L.); +45-52521810 (K.S.)
| | - Katharina Sieferle
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark;
- Correspondence: (E.A.L.); (K.S.); Tel.: +45-52655220 (E.A.L.); +45-52521810 (K.S.)
| | | | - Christian Ritz
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark;
- National Institute of Public Health, University of Southern Denmark, Studiestræde 6, 1455 Copenhagen K, Denmark
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Oh YJ, Nam K, Kim Y, Lee SY, Kim HS, Kang JI, Lee SY, Hwang KT. Effect of a Nutritionally Balanced Diet Comprising Whole Grains and Vegetables Alone or in Combination with Probiotic Supplementation on the Gut Microbiota. Prev Nutr Food Sci 2021; 26:121-131. [PMID: 34316477 PMCID: PMC8276713 DOI: 10.3746/pnf.2021.26.2.121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 04/04/2021] [Accepted: 04/19/2021] [Indexed: 11/23/2022] Open
Abstract
Dysbiosis is a microbial imbalance, which often causes diseases and can be triggered by diet. Here, we deter-mined the effect of a nutritionally balanced diet rich in vegetables and whole grains alone and/or in combination with probiotics on the gut microbiota of healthy adults. We conducted a parallel-group randomized trial enrolling 63 healthy participants who were administered either a balanced diet (B-diet group), a probiotic capsule containing Lactobacillus plantarum PMO 08 (probiotics group), or a balanced diet plus probiotic capsule (synbiotics group) once daily for 2 weeks. The gut microbiota of each participant was analyzed via 16S ribosomal RNA MiSeq-based sequencing. Gastrointestinal symptoms and defecation habits were evaluated using questionnaires. The B-diet group showed significantly reduced Firmicutes-to-Bacteroidetes ratio (P<0.05) and abundances of the genera Blautia (P<0.01), Dorea (P<0.05), and Lachnoclostridium (P<0.05). Furthermore, the abundance of Bacteroides increased (P<0.05) compared to baseline levels. In the synbiotics group, Lactobacillus abundance increased significantly (P<0.05) and defecation difficulty decreased (P<0.05), confirming a synergistic effect of combined intake. All groups showed a significant reduction in the abundance of Clostridiaceae (P<0.001) and alleviation of bloating symptoms (P<0.05). Moreover, the relative abundance of Faecalibacterium significantly increased in the probiotics group (P<0.05). Therefore, the individual or combined intake of a nutritionally balanced diet and L. plantarum PMO 08 beneficially modifies the gut microbiota with the potential to alleviate gastrointestinal symptoms and improve defecation habits.
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Affiliation(s)
- Young Joo Oh
- Pulmuone Co., Ltd., Seoul 06367, Korea.,Department of Food and Nutrition, and Research Institute of Human Ecology, Seoul National University, Seoul 08826, Korea
| | - Kisun Nam
- Pulmuone Co., Ltd., Seoul 06367, Korea
| | | | | | - Hyung Sook Kim
- Department of Food and Nutrition, The University of Suwon, Gyeonggi 18323, Korea
| | | | | | - Keum Taek Hwang
- Department of Food and Nutrition, and Research Institute of Human Ecology, Seoul National University, Seoul 08826, Korea
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Dietary Habits and Gut Microbiota in Healthy Adults: Focusing on the Right Diet. A Systematic Review. Int J Mol Sci 2021; 22:ijms22136728. [PMID: 34201611 PMCID: PMC8269086 DOI: 10.3390/ijms22136728] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 06/13/2021] [Accepted: 06/15/2021] [Indexed: 12/17/2022] Open
Abstract
Diet is the first to affect our intestinal microbiota and therefore the state of eubiosis. Several studies are highlighting the potential benefits of taking certain nutritional supplements, but a dietary regime that can ensure the health of the intestinal microbiota, and the many pathways it governs, is not yet clearly defined. We performed a systematic review of the main studies concerning the impact of an omnivorous diet on the composition of the microbiota and the production of short-chain fatty acids (SCFAs). Some genera and phyla of interest emerged significantly and about half of the studies evaluated consider them to have an equally significant impact on the production of SCFAs, to be a source of nutrition for our colon cells, and many other processes. Although numerous randomized trials are still needed, the Mediterranean diet could play a valuable role in ensuring our health through direct interaction with our microbiota.
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Sugurmar ANK, Mohd R, Shah SA, Neoh HM, Cader RA. Gut microbiota in Immunoglobulin A Nephropathy: a Malaysian Perspective. BMC Nephrol 2021; 22:145. [PMID: 33882859 PMCID: PMC8060124 DOI: 10.1186/s12882-021-02315-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 03/11/2021] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION The alteration of the gut microbiome in the gut-kidney axis has been associated with a pro-inflammatory state and chronic kidney disease (CKD). A small-scaled Italian study has shown an association between the gut microbiome and Immunoglobulin A Nephropathy (IgAN). However, there is no data on gut microbiota in IgAN in the Asian population. This study compares the gut microbial abundance and diversity between healthy volunteers and Malaysian IgAN cohort. METHODS A comparative cross-sectional study was conducted involving biopsy-proven IgAN patients in clinical remission with matched controls in a Malaysian tertiary centre. Demographic data, routine blood and urine results were recorded. Stool samples were collected and their DNA was extracted by 16S rRNA gene sequencing to profile their gut microbiota. RESULTS Thirty-six IgAN patients (13 male; 23 female) with the mean age of 45.5 ± 13.4 years and median estimated glomerular filtration rate (eGFR) of 79.0 (62.1-92.2) mls/min/1.73m2 with median remission of 7 years were analysed and compared with 12 healthy controls (4 male; 8 female) with the mean age of 46.5 ± 13.5 years and eGFR of 86.5 (74.2-93.7) mls/min/1.73m2. Other demographic and laboratory parameters such as gender, ethnicity, body mass index (BMI), haemoglobin, serum urea and serum albumin were comparable between the two groups. There were no significant differences seen in the Operational Taxonomic Unit (OTU) and alpha diversity (Shannon index) between IgAN and healthy controls. Alpha diversity increased with increasing CKD stage (p = 0.025). Firmicutes/Bacteroidetes (F/B) ratio was low in both IgAN and healthy cohort. Fusobacteria phylum was significantly increased (p = 0.005) whereas Euryarchaoeota phylum was reduced (p = 0.016) in the IgAN group as compared to the control cohort. CONCLUSION Although we found no differences in OTU and alpha diversity between IgAN in remission and control cohort, there were some differences between the two groups at phylum level.
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Affiliation(s)
- Agni Nhirmal Kumar Sugurmar
- Department of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, 56000, Kuala Lumpur, Malaysia.
| | - Rozita Mohd
- Department of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, 56000, Kuala Lumpur, Malaysia
| | - Shamsul Azhar Shah
- Department of Community Health, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Hui-Min Neoh
- UKM Molecular Biology Institute, Kuala Lumpur, Malaysia
| | - Rizna Abdul Cader
- Department of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, 56000, Kuala Lumpur, Malaysia.,ParkCity Medical Centre, No.2, Jalan Intisari Perdana, Desa ParkCity, Kuala Lumpur, 52200, Malaysia
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Kohnert E, Kreutz C, Binder N, Hannibal L, Gorkiewicz G, Müller A, Storz MA, Huber R, Lederer AK. Changes in Gut Microbiota after a Four-Week Intervention with Vegan vs. Meat-Rich Diets in Healthy Participants: A Randomized Controlled Trial. Microorganisms 2021; 9:727. [PMID: 33807447 PMCID: PMC8066554 DOI: 10.3390/microorganisms9040727] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/26/2021] [Accepted: 03/29/2021] [Indexed: 12/15/2022] Open
Abstract
An essential role of the gut microbiota in health and disease is strongly suggested by recent research. The composition of the gut microbiota is modified by multiple internal and external factors, such as diet. A vegan diet is known to show beneficial health effects, yet the role of the gut microbiota is unclear. Within a 4-week, monocentric, randomized, controlled trial with a parallel group design (vegan (VD) vs. meat-rich (MD)) with 53 healthy, omnivore, normal-weight participants (62% female, mean 31 years of age), fecal samples were collected at the beginning and at the end of the trial and were analyzed using 16S rRNA gene amplicon sequencing (Clinical Trial register: DRKS00011963). Alpha diversity as well as beta diversity did not differ significantly between MD and VD. Plotting of baseline and end samples emphasized a highly intra-individual microbial composition. Overall, the gut microbiota was not remarkably altered between VD and MD after the trial. Coprococcus was found to be increased in VD while being decreased in MD. Roseburia and Faecalibacterium were increased in MD while being decreased in VD. Importantly, changes in genera Coprococcus, Roseburia and Faecalibacterium should be subjected to intense investigation as markers for physical and mental health.
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Affiliation(s)
- Eva Kohnert
- Institute of Medical Biometry and Statistics, Medical Center, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany; (E.K.); (C.K.)
| | - Clemens Kreutz
- Institute of Medical Biometry and Statistics, Medical Center, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany; (E.K.); (C.K.)
| | - Nadine Binder
- Institute of Digitalization in Medicine, Medical Center, Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany;
| | - Luciana Hannibal
- Laboratory of Clinical Biochemistry and Metabolism, Department of General Pediatrics, Adolescent Medicine and Neonatology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany;
| | - Gregor Gorkiewicz
- Diagnostic & Research Institute of Pathology, Medical University Graz, 8010 Graz, Austria;
| | - Alexander Müller
- Center for Complementary Medicine, Institute for Infection Prevention and Hospital Epidemiology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.M.); (M.A.S.); (R.H.)
| | - Maximilian Andreas Storz
- Center for Complementary Medicine, Institute for Infection Prevention and Hospital Epidemiology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.M.); (M.A.S.); (R.H.)
| | - Roman Huber
- Center for Complementary Medicine, Institute for Infection Prevention and Hospital Epidemiology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.M.); (M.A.S.); (R.H.)
| | - Ann-Kathrin Lederer
- Center for Complementary Medicine, Institute for Infection Prevention and Hospital Epidemiology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.M.); (M.A.S.); (R.H.)
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Tap J, Störsrud S, Le Nevé B, Cotillard A, Pons N, Doré J, Öhman L, Törnblom H, Derrien M, Simrén M. Diet and gut microbiome interactions of relevance for symptoms in irritable bowel syndrome. MICROBIOME 2021; 9:74. [PMID: 33771219 PMCID: PMC8004395 DOI: 10.1186/s40168-021-01018-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/02/2021] [Indexed: 05/06/2023]
Abstract
BACKGROUND While several studies have documented associations between dietary habits and microbiota composition and function in healthy individuals, no study explored these associations in patients with irritable bowel syndrome (IBS), and especially with symptoms. METHODS Here, we used a novel approach that combined data from a 4-day food diary, integrated into a food tree, together with gut microbiota (shotgun metagenomic) for individuals with IBS (N = 149) and healthy controls (N = 52). Paired microbiota and food-based trees allowed us to detect new associations between subspecies and diet. Combining co-inertia analysis and linear regression models, exhaled gas levels and symptom severity could be predicted from metagenomic and dietary data. RESULTS We showed that individuals with severe IBS are characterized by a higher intake of poorer-quality food items during their main meals. Our analysis suggested that covariations between gut microbiota at subspecies level and diet could be explained with IBS symptom severity, exhaled gas, glycan metabolism, and meat/plant ratio. We provided evidence that IBS severity is associated with altered gut microbiota hydrogen function in correlation with microbiota enzymes involved in animal carbohydrate metabolism. CONCLUSIONS Our study provides an unprecedented resolution of diet-microbiota-symptom interactions and ultimately guides new interventional studies that aim to identify gut microbiome-based nutritional recommendations for the management of gastrointestinal symptoms. TRIAL REGISTRATION This trial was registered on the ClinicalTrials.gov, with the registration number NCT01252550 , on 3rd December 2010. Video abstract.
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Affiliation(s)
- Julien Tap
- Danone Nutricia Research, Palaiseau, France.
| | - Stine Störsrud
- Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Gothenburg, Sweden
| | | | | | - Nicolas Pons
- MGP MetaGénoPolis, INRA, Université Paris-Saclay, Jouy en Josas, France
| | - Joël Doré
- MGP MetaGénoPolis, INRA, Université Paris-Saclay, Jouy en Josas, France
| | - Lena Öhman
- Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Gothenburg, Sweden
- Department of Immunology and Microbiology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Hans Törnblom
- Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Gothenburg, Sweden
| | | | - Magnus Simrén
- Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Gothenburg, Sweden.
- Center for Functional Gastrointestinal and Motility Disorders, University of North Carolina, Chapel Hill, NC, USA.
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Flynn MM, George P, Schiffman FJ. Improving Food Security in Medical Students Using a Cooking Program. JOURNAL OF HUNGER & ENVIRONMENTAL NUTRITION 2021. [DOI: 10.1080/19320248.2019.1693470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Paul George
- Family Medicine and Medical Science, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Fred Jay Schiffman
- Lifespan Cancer Institute, The Miriam Hospital, Providence, Rhode Island, USA
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Moles L, Egimendia A, Osorio-Querejeta I, Iparraguirre L, Alberro A, Suárez J, Sepúlveda L, Castillo-Triviño T, Muñoz-Culla M, Ramos-Cabrer P, Otaegui D. Gut Microbiota Changes in Experimental Autoimmune Encephalomyelitis and Cuprizone Mice Models. ACS Chem Neurosci 2021; 12:893-905. [PMID: 33566588 DOI: 10.1021/acschemneuro.0c00695] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic and neurodegenerative disease of the central nervous system (CNS) characterized by the immune mediated attack on axons and the subsequent demyelination. There is growing evidence that the gut microbiota of MS patients is altered; however, the connection between demyelination events and changes in the gut microbiota has not been determined. The objective of the current work was to characterize the microbial dysbiosis in two murine demyelinating models and to study the correlation between them. Concurrently, their suitability as predictors of microbial changes in MS patients was assessed. To this purpose, experimental autoimmune encephalomyelitis (EAE) and cuprizone (CPZ) models were induced in C57BL/6 mice that were monitored for 4 and 9 weeks, respectively. Fecal samples were collected during disease progression. Motor skill performance was evaluated by EAE scale measurement in EAE mice and demyelination by magnetic resonance imaging (MRI) in CPZ ones. EAE and CPZ mice revealed drastic microbial changes according to disease progression, adding a new layer of complexity to the understanding of demyelination and remyelination processes. Besides, the reported microbial changes replicate most of the characteristics that define the potential dysbiosis in MS patients. The controlled environment and stable diet that animals have in research centers offer an exceptional scenario to modify animal's microbiota and provide opportunities to study host microbiota interplay with restrained conditions not achievable in human studies. Nevertheless the slight differences from murine model's and patient's microbiota should be considered in the design of studies aiming to modulate the microbiota.
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Affiliation(s)
- Laura Moles
- Multiple Sclerosis Group, Neuroscience Area, Biodonostia Research Institute, San Sebastian 20014, Spain
| | - Ander Egimendia
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, Donostia, San Sebastián 20014, Spain
| | - Iñaki Osorio-Querejeta
- Multiple Sclerosis Group, Neuroscience Area, Biodonostia Research Institute, San Sebastian 20014, Spain
| | - Leire Iparraguirre
- Multiple Sclerosis Group, Neuroscience Area, Biodonostia Research Institute, San Sebastian 20014, Spain
| | - Ainhoa Alberro
- Multiple Sclerosis Group, Neuroscience Area, Biodonostia Research Institute, San Sebastian 20014, Spain
| | - Jose Suárez
- Multiple Sclerosis Group, Neuroscience Area, Biodonostia Research Institute, San Sebastian 20014, Spain
| | - Lucía Sepúlveda
- Multiple Sclerosis Group, Neuroscience Area, Biodonostia Research Institute, San Sebastian 20014, Spain
- Spanish Network of Multiple Sclerosis (REEM),, Barcelona 08028Spain
| | - Tamara Castillo-Triviño
- Multiple Sclerosis Group, Neuroscience Area, Biodonostia Research Institute, San Sebastian 20014, Spain
- Spanish Network of Multiple Sclerosis (REEM),, Barcelona 08028Spain
- Neurology Department, Donostia University Hospital, Osakidetza, San Sebastián 20014, Spain
| | - Maider Muñoz-Culla
- Multiple Sclerosis Group, Neuroscience Area, Biodonostia Research Institute, San Sebastian 20014, Spain
- Spanish Network of Multiple Sclerosis (REEM),, Barcelona 08028Spain
| | - Pedro Ramos-Cabrer
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, Donostia, San Sebastián 20014, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao 48009, Spain
| | - David Otaegui
- Multiple Sclerosis Group, Neuroscience Area, Biodonostia Research Institute, San Sebastian 20014, Spain
- Spanish Network of Multiple Sclerosis (REEM),, Barcelona 08028Spain
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de Paula A, Medeiros JD, Fernandes G, da Silva V, Diniz CG. Microbiome of industrialized Minas Frescal Cheese reveals high prevalence of putative bacteria: A concern in the One Health context. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110791] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Yu D, Nguyen SM, Yang Y, Xu W, Cai H, Wu J, Cai Q, Long J, Zheng W, Shu XO. Long-term diet quality is associated with gut microbiome diversity and composition among urban Chinese adults. Am J Clin Nutr 2021; 113:684-694. [PMID: 33471054 PMCID: PMC7948864 DOI: 10.1093/ajcn/nqaa350] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 10/28/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Few population-based studies have evaluated the influence of long-term diet on the gut microbiome, and data among Asian populations are lacking. OBJECTIVE We examined the association of long-term diet quality, comprising 8 food groups (fruit, vegetables, dairy, fish/seafood, nuts/legumes, refined grains, red meat, and processed meat), with gut microbiome among Chinese adults. METHODS Included were 1920 men and women, enrolled in 2 prospective cohorts (baseline 1996-2006), who remained free of cardiovascular diseases, diabetes, and cancer at stool collection (2015-2018) and had no diarrhea or antibiotic use in the last 7 d before stool collection. Microbiome was profiled by 16S rRNA sequencing. Long-term diet was assessed by repeated surveys at baseline and follow-ups (1996-2011), with intervals of 5.2 to 20.5 y between dietary surveys and stool collection. Associations of dietary variables with microbiome diversity and composition were evaluated by linear or negative binomial hurdle models, adjusting for potential confounders. False discovery rate (FDR) <0.1 was considered significant. RESULTS The mean ± SD age at stool collection was 68 ± 1.5 y. Diet quality was positively associated with microbiome α-diversity (P = 0.03) and abundance of Firmicutes, Actinobacteria, Tenericutes, and genera/species within these phyla, including Coprococcus, Faecalibacterium/Faecalibacterium prausnitzii, Bifidobacterium / Bifidobacterium adolescentis, and order RF39 (all FDRs <0.1). Significant associations were also observed for intakes of dairy, fish/seafood, nuts/legumes, refined grains, and processed meat, including a positive association of dairy with Bifidobacterium and inverse associations of processed meat with Roseburia /Roseburia faecis. Most associations were similar, with or without adjustment for BMI and hypertension status or excluding participants with antibiotic use in the past 6 mo. CONCLUSION Among apparently healthy Chinese adults, long-term diet quality is positively associated with fecal microbiome diversity and abundance of fiber-fermenting bacteria, although magnitudes are generally small. Future studies are needed to examine if these bacteria may mediate or modify diet-disease relations.
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Affiliation(s)
- Danxia Yu
- Address correspondence to DY (e-mail: )
| | - Sang M Nguyen
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Yaohua Yang
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Wanghong Xu
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
| | - Hui Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jie Wu
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Qiuyin Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jirong Long
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
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Faecal Microbiota of Dogs Offered a Vegetarian Diet with or without the Supplementation of Feather Meal and either Cornmeal, Rye or Fermented Rye: A Preliminary Study. Microorganisms 2020; 8:microorganisms8091363. [PMID: 32899987 PMCID: PMC7565823 DOI: 10.3390/microorganisms8091363] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/01/2020] [Accepted: 09/04/2020] [Indexed: 12/30/2022] Open
Abstract
Anthropomorphism of dogs has affected feeding and the choice of components present in diets for dogs. Conflicting trends are present: raw or vegetarian appear more prevalent. Animal-derived proteins seem to have unfavourable impacts on intestinal microflora by decreasing the presence of Bacteroidetes. This preliminary study evaluates whether effects of diets with animal proteins on intestinal microbiota can be compensated by the addition of certain carbohydrates to dog diet. Eight female beagles were included in a cross-over study and fed a vegetarian diet or the same diet supplemented with feather meal (2.7%) and either 20% of cornmeal, fermented or non-fermented rye (moisture content of the diets about 42%). A 16S rRNA gene amplification was performed within the hypervariable region V4 on faecal samples and sequenced with the Illumina MiSeq platform. The Firmicutes/Bacteroidetes ratio tended to shift to the advantage of Firmicutes when feather meal and cornmeal were added (Firmicutes/Bacteroidetes ratio of 5.12 compared to 2.47 when offered the vegetarian diet) and tended to switch back to the advantage of Bacteroidetes if rye: fermented (2.17) or not (1.03) was added. The addition of rye might have the potential to compensate possible unfavourable effects of diets with animal proteins on intestinal microbiota of dogs.
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50
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Jakše B, Jakše B, Pinter S, Pajek J, Fidler Mis N. Whole-Food Plant-Based Lifestyle Program and Decreased Obesity. Am J Lifestyle Med 2020; 16:260-270. [DOI: 10.1177/1559827620949205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Failure of weight-loss programs is high. We evaluated a whole-food plant-based (WFPB) lifestyle program. We investigated the obesity indices of 151 healthy adults who were on our ongoing, community-based program for the short (0.5 to ≤2 years), medium (2 to ≤5 years), or long term (5 to 10 years). Body composition indices were measured by medically approved bioimpedance. Body composition changes were favorable for all 3 groups and both genders. There were no differences in body composition between the males for all 3 groups, while there were lower body mass (BM), body mass index (BMI), and muscle mass in females on long-term versus short-term programs. All participants experienced a decrease in BMI (−2.5 kg/m2), BM (−7.1 kg), and body fat percentage (−6.4%; P < .001 for all). The reductions for those with a baseline BMI of obese, overweight, and normal were −5.6, −2.4, and −0.9 kg/m2 for BMI, −16.1, −7.1, and −2.5 kg for total BM, and −9.5%, −6.6%, and −4.8% for body fat percentage (baseline vs current; P < .001 for all). A total of 86% of parents of underage children introduced the WFPB lifestyle to children. Our WFPB lifestyle program provides a long-term reversal of obesity.
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Affiliation(s)
- Boštjan Jakše
- Department of Food science, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | | | - Stanislav Pinter
- Basics of Movements in Sport, Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
| | - Jernej Pajek
- Department of Nephrology, University Medical Centre Ljubljana, Ljubljana, Slovenia and Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Nataša Fidler Mis
- Department of Gastroenterology, Hepatology and Nutrition, University Children’s Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
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