1
|
Ross FC, Mayer DE, Gupta A, Gill CIR, Del Rio D, Cryan JF, Lavelle A, Ross RP, Stanton C, Mayer EA. Existing and Future Strategies to Manipulate the Gut Microbiota With Diet as a Potential Adjuvant Treatment for Psychiatric Disorders. Biol Psychiatry 2024; 95:348-360. [PMID: 37918459 DOI: 10.1016/j.biopsych.2023.10.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 09/20/2023] [Accepted: 10/23/2023] [Indexed: 11/04/2023]
Abstract
Nutrition and diet quality play key roles in preventing and slowing cognitive decline and have been linked to multiple brain disorders. This review compiles available evidence from preclinical studies and clinical trials on the impact of nutrition and interventions regarding major psychiatric conditions and some neurological disorders. We emphasize the potential role of diet-related microbiome alterations in these effects and highlight commonalities between various brain disorders related to the microbiome. Despite numerous studies shedding light on these findings, there are still gaps in our understanding due to the limited availability of definitive human trial data firmly establishing a causal link between a specific diet and microbially mediated brain functions and symptoms. The positive impact of certain diets on the microbiome and cognitive function is frequently ascribed with the anti-inflammatory effects of certain microbial metabolites or a reduction of proinflammatory microbial products. We also critically review recent research on pro- and prebiotics and nondietary interventions, particularly fecal microbiota transplantation. The recent focus on diet in relation to brain disorders could lead to improved treatment outcomes with combined dietary, pharmacological, and behavioral interventions.
Collapse
Affiliation(s)
- Fiona C Ross
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Dylan E Mayer
- Institute of Human Nutrition, Columbia University, New York, New York
| | - Arpana Gupta
- Goodman-Luskin Microbiome Center, G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Chris I R Gill
- Nutrition Innovation Centre for Food and Health, Ulster University, Coleraine, United Kingdom
| | - Daniele Del Rio
- Department of Food and Drugs, University of Parma, Parma, Italy
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Aonghus Lavelle
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - R Paul Ross
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Catherine Stanton
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Teagasc Moorepark Food Research Centre, Fermoy, Cork, Ireland.
| | - Emeran A Mayer
- Goodman-Luskin Microbiome Center, G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.
| |
Collapse
|
2
|
Jenickova E, Andrén Aronsson C, Mascellani Bergo A, Cinek O, Havlik J, Agardh D. Effects of Lactiplantibacillus plantarum and Lacticaseibacillus paracasei supplementation on the faecal metabolome in children with coeliac disease autoimmunity: a randomised, double-blinded placebo-controlled clinical trial. Front Nutr 2023; 10:1183963. [PMID: 37485388 PMCID: PMC10359497 DOI: 10.3389/fnut.2023.1183963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 06/08/2023] [Indexed: 07/25/2023] Open
Abstract
Introduction Coeliac disease is a lifelong immune-mediated enteropathy manifested as gluten intolerance in individuals carrying specific human leukocyte antigen (HLA) molecules. Other factors than genetics and gluten intake, however, may play a role in triggering the disease. The gut internal environment is thought to be one of these potential contributing factors, and it can be influenced throughout life. Methods We examine the impact of Lactiplantibacillus plantarum HEAL9 and Lacticaseibacillus paracasei 8700:2 supplementation on the faecal metabolome in genetically predisposed children having tissue transglutaminase autoantibodies, i.e., coeliac disease autoimmunity. Probiotic strains were selected based on their beneficial properties, including mucosal permeability and immune modulation effects. The intervention group (n = 40) and control group (n = 38) took the probiotics or placebo daily for 6 months in a double-blinded randomised trial. Faecal samples were collected at baseline and after 3 and 6 months and analysed using the 1H NMR for metabolome. The incorporation of 16S rRNA sequencing as a supportive dataset complemented the analysis of the metabolome data. Results During the 6 months of intervention, the stool concentrations of 4-hydroxyphenylacetate increased in the intervention group as compared to controls, whereas concentrations of threonine, valine, leucine, isoleucine, methionine, phenylalanine, aspartate, and fumarate decreased. Additionally, a noteworthy effect on the glycine, serine, and threonine metabolic pathway has been observed. Conclusion The findings suggest a modest yet significant impact of the probiotics on the faecal metabolome, primarily influencing proteolytic processes in the gut. Clinical trial registration ClinicalTrials.gov, NCT03176095.
Collapse
Affiliation(s)
- Eliska Jenickova
- Department of Food Science, Czech University of Life Sciences Prague, Prague, Czechia
| | | | - Anna Mascellani Bergo
- Department of Food Science, Czech University of Life Sciences Prague, Prague, Czechia
| | - Ondrej Cinek
- Department of Pediatrics and Department of Medical Microbiology, Charles University in Prague and University Hospital Motol, Prague, Czechia
| | - Jaroslav Havlik
- Department of Food Science, Czech University of Life Sciences Prague, Prague, Czechia
| | - Daniel Agardh
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| |
Collapse
|
3
|
Lee HY, Lee JH, Kim SH, Jo SY, Min KJ. Probiotic Limosilactobacillus Reuteri (Lactobacillus Reuteri) Extends the Lifespan of Drosophila Melanogaster through Insulin/IGF-1 Signaling. Aging Dis 2023:AD.2023.0122. [PMID: 37163439 PMCID: PMC10389828 DOI: 10.14336/ad.2023.0122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/22/2023] [Indexed: 05/12/2023] Open
Abstract
The term probiotic refers to bacteria that provide a beneficial effect to the host. Limosilactobacillus reuteri (Lactobacillus reuteri) is a probiotic isolated from human breast milk. Although L. reuteri has antimicrobial and anti-inflammatory activities occasionally linked to anti-aging effects, there are no reports of the effects of L. reuteri on longevity. This study evaluated the anti-aging effects of L. reuteri on the lifespan and physiology of Drosophila melanogaster. L. reuteri increased the mean lifespan of fruit flies significantly without reducing the reproductive output, food intake, or locomotor activity. Furthermore, the data suggested that the longevity effect of L. reuteri is mediated by the reduction of the insulin/IGF-1 signaling pathway and the action of reuterin, an antimicrobial compound produced by L. reuteri. These results show that L. reuteri can be used as a probiotic that acts as a dietary restriction mimetic with anti-aging effects.
Collapse
Affiliation(s)
- Hye-Yeon Lee
- Department of Biological Sciences and Bioengineering, Inha University, Incheon 22212, Korea
| | - Ji-Hyeon Lee
- Department of Biological Sciences and Bioengineering, Inha University, Incheon 22212, Korea
| | - Seung Hyung Kim
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon 34520, Korea
| | - Su-Yeon Jo
- WEDEA Co., Science Park 305, HNU, Daejeon 34054, Korea
| | - Kyung-Jin Min
- Department of Biological Sciences and Bioengineering, Inha University, Incheon 22212, Korea
| |
Collapse
|
4
|
Revisiting the bioavailability of flavan-3-ols in humans: A systematic review and comprehensive data analysis. Mol Aspects Med 2023; 89:101146. [PMID: 36207170 DOI: 10.1016/j.mam.2022.101146] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/08/2022] [Accepted: 09/24/2022] [Indexed: 11/07/2022]
Abstract
This systematic review summarizes findings from human studies investigating the different routes of absorption, metabolism, distribution and excretion (ADME) of dietary flavan-3-ols and their circulating metabolites in healthy subjects. Literature searches were performed in PubMed, Scopus and the Web of Science. Human intervention studies using single and/or multiple intake of flavan-3-ols from food, extracts, and pure compounds were included. Forty-nine human intervention studies met inclusion criteria. Up to 180 metabolites were quantified from blood and urine samples following intake of flavan-3-ols, mainly as phase 2 conjugates of microbial catabolites (n = 97), with phenyl-γ-valerolactones being the most representative ones (n = 34). Phase 2 conjugates of monomers and phenyl-γ-valerolactones, the main compounds in both plasma and urine, reached two peak plasma concentrations (Cmax) of 260 and 88 nmol/L at 1.8 and 5.3 h (Tmax) after flavan-3-ol intake. They contributed to the bioavailability of flavan-3-ols for over 20%. Mean bioavailability for flavan-3-ols was moderate (31 ± 23%, n bioavailability values = 20), and it seems to be scarcely affected by the amount of ingested compounds. While intra- and inter-source differences in flavan-3-ol bioavailability emerged, mean flavan-3-ol bioavailability was 82% (n = 1) and 63% (n = 2) after (-)-epicatechin and nut (hazelnuts, almonds) intake, respectively, followed by 25% after consumption of tea (n = 7), cocoa (n = 5), apples (n = 3) and grape (n = 2). This highlights the need to better clarify the metabolic yield with which monomer flavan-3-ols and proanthocyanidins are metabolized in humans. This work clarified in a comprehensive way for the first time the ADME of a (poly)phenol family, highlighting the pool of circulating compounds that might be determinants of the putative beneficial effects linked to flavan-3-ol intake. Lastly, methodological inputs for implementing well-designed human and experimental model studies were provided.
Collapse
|
5
|
Roager HM, Stanton C, Hall LJ. Microbial metabolites as modulators of the infant gut microbiome and host-microbial interactions in early life. Gut Microbes 2023; 15:2192151. [PMID: 36942883 PMCID: PMC10038037 DOI: 10.1080/19490976.2023.2192151] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 03/06/2023] [Indexed: 03/23/2023] Open
Abstract
The development of infant gut microbiome is a pivotal process affecting the ecology and function of the microbiome, as well as host health. While the establishment of the infant microbiome has been of interest for decades, the focus on gut microbial metabolism and the resulting small molecules (metabolites) has been rather limited. However, technological and computational advances are now enabling researchers to profile the plethora of metabolites in the infant gut, allowing for improved understanding of how gut microbial-derived metabolites drive microbiome community structuring and host-microbial interactions. Here, we review the current knowledge on development of the infant gut microbiota and metabolism within the first year of life, and discuss how these microbial metabolites are key for enhancing our basic understanding of interactions during the early life developmental window.
Collapse
Affiliation(s)
- Henrik M. Roager
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Frederiksberg, Denmark
| | - Catherine Stanton
- APC Microbiome Ireland, Teagasc Moorepark Food Research Centre, Fermoy, Co. Cork, Ireland
| | - Lindsay J. Hall
- Gut Microbes & Health, Quadram Institute Biosciences, Norwich, UK
- Intestinal Microbiome, School of Life Sciences, ZIEL – Institute for Food & Health, Technical University of Munich, Freising, Germany
- Norwich Medical School, University of East Anglia, Norwich, UK
| |
Collapse
|
6
|
Food Peptides, Gut Microbiota Modulation, and Antihypertensive Effects. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248806. [PMID: 36557936 PMCID: PMC9788432 DOI: 10.3390/molecules27248806] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/04/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
The gut microbiota is increasingly important in the overall human health and as such, it is a target in the search of novel strategies for the management of metabolic disorders including blood pressure, and cardiovascular diseases. The link between microbiota and hypertension is complex and this review is intended to provide an overview of the mechanism including the production of postbiotics, mitigation of inflammation, and the integration of food biological molecules within this complex system. The focus is on hydrolyzed food proteins and peptides which are less commonly investigated for prebiotic properties. The analysis of available data showed that food peptides are multifunctional and can prevent gut dysbiosis by positively affecting the production of postbiotics or gut metabolites (short-chain fatty acids, polysaccharides, biogenic amines, bile acids). Peptides and the postbiotics then displayed antihypertensive effects via the renin-angiotensin system, the gut barrier, the endothelium, and reduction in inflammation and oxidative stress. Despite the promising antihypertensive effect of the food peptides via the modulation of the gut, there is a lack of human studies as most of the works have been conducted in animal models.
Collapse
|
7
|
NAUREEN ZAKIRA, CRISTONI SIMONE, DONATO KEVIN, MEDORI MARIACHIARA, SAMAJA MICHELE, HERBST KARENL, AQUILANTI BARBARA, VELLUTI VALERIA, MATERA GIUSEPPINA, FIORETTI FRANCESCO, IACONELLI AMERIGO, PERRONE MARCOALFONSO, DI GIULIO LORENZO, GREGORACE EMANUELE, CHIURAZZI PIETRO, NODARI SAVINA, CONNELLY STEPHENTHADDEUS, BERTELLI MATTEO. Metabolomics application for the design of an optimal diet. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2022; 63:E142-E149. [PMID: 36479478 PMCID: PMC9710392 DOI: 10.15167/2421-4248/jpmh2022.63.2s3.2755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Precision nutrition is an emerging branch of nutrition science that aims to use modern omics technologies (genomics, proteomics, and metabolomics) to assess an individual's response to specific foods or dietary patterns and thereby determine the most effective diet or lifestyle interventions to prevent or treat specific diseases. Metabolomics is vital to nearly every aspect of precision nutrition. It can be targeted or untargeted, and it has many applications. Indeed, it can be used to comprehensively characterize the thousands of chemicals in foods, identify food by-products in human biofluids or tissues, characterize nutrient deficiencies or excesses, monitor biochemical responses to dietary interventions, track long- or short-term dietary habits, and guide the development of nutritional therapies. Indeed, metabolomics can be coupled with genomics and proteomics to study and advance the field of precision nutrition. Integrating omics with epidemiological and clinical data will begin to define the beneficial effects of human food metabolites. In this review, we present the metabolome and its relationship to precision nutrition. Moreover, we describe the different techniques used in metabolomics and present how metabolomics has been applied to advance the field of precision nutrition by providing notable examples and cases.
Collapse
Affiliation(s)
| | - SIMONE CRISTONI
- ISB Ion Source & Biotechnologies srl, Italy, Bresso, Milano, Italy
| | - KEVIN DONATO
- MAGI EUREGIO, Bolzano, Italy
- Correspondence: Kevin Donato, MAGI EUREGIO, Via Maso della Pieve 60/A, Bolzano (BZ), 39100, Italy. E-mail:
| | | | | | - KAREN L. HERBST
- Total Lipedema Care, Beverly Hills California and Tucson Arizona, USA
| | - BARBARA AQUILANTI
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - VALERIA VELLUTI
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - GIUSEPPINA MATERA
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - FRANCESCO FIORETTI
- Department of Cardiology, University of Brescia and ASST “Spedali Civili” Hospital, Brescia, Italy
| | - AMERIGO IACONELLI
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | | | - LORENZO DI GIULIO
- Department of Vascular Surgery, University of Rome Tor Vergata, Rome Italy
| | - EMANUELE GREGORACE
- Department of Cardiology and CardioLab, University of Rome Tor Vergata, Rome, Italy
| | - PIETRO CHIURAZZI
- Istituto di Medicina Genomica, Università Cattolica del Sacro Cuore, Rome, Italy
- UOC Genetica Medica, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Rome, Italy
| | - SAVINA NODARI
- Department of Cardiology, University of Brescia and ASST “Spedali Civili” Hospital, Brescia, Italy
| | - STEPHEN THADDEUS CONNELLY
- San Francisco Veterans Affairs Health Care System, Department of Oral & Maxillofacial Surgery, University of California, San Francisco, CA, USA
| | - MATTEO BERTELLI
- MAGI EUREGIO, Bolzano, Italy
- MAGI’S LAB, Rovereto (TN), Italy
- Total Lipedema Care, Beverly Hills California and Tucson Arizona, USA
- MAGISNAT, Peachtree Corners (GA), USA
| |
Collapse
|
8
|
Sudhakaran G, Guru A, Haridevamuthu B, Murugan R, Arshad A, Arockiaraj J. Molecular properties of postbiotics and their role in controlling aquaculture diseases. AQUACULTURE RESEARCH 2022; 53:3257-3273. [DOI: 10.1111/are.15846] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/13/2022] [Indexed: 10/16/2023]
Affiliation(s)
- Gokul Sudhakaran
- Department of Biotechnology, College of Science and Humanities SRM Institute of Science and Technology Chennai India
| | - Ajay Guru
- Department of Biotechnology, College of Science and Humanities SRM Institute of Science and Technology Chennai India
| | - B. Haridevamuthu
- Department of Biotechnology, College of Science and Humanities SRM Institute of Science and Technology Chennai India
| | - Raghul Murugan
- Department of Biotechnology, College of Science and Humanities SRM Institute of Science and Technology Chennai India
| | - Aziz Arshad
- International Institute of Aquaculture and Aquatic Sciences (I‐AQUAS) Universiti Putra Malaysia Port Dickson Malaysia
| | - Jesu Arockiaraj
- Department of Biotechnology, College of Science and Humanities SRM Institute of Science and Technology Chennai India
- Foundation for Aquaculture Innovations and Technology Transfer (FAITT) Chennai India
| |
Collapse
|
9
|
Rodríguez-Romero JDJ, Durán-Castañeda AC, Cárdenas-Castro AP, Sánchez-Burgos JA, Zamora-Gasga VM, Sáyago-Ayerdi SG. What we know about protein gut metabolites: Implications and insights for human health and diseases. Food Chem X 2022; 13:100195. [PMID: 35499004 PMCID: PMC9039920 DOI: 10.1016/j.fochx.2021.100195] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/10/2021] [Accepted: 12/22/2021] [Indexed: 12/18/2022] Open
Abstract
Gut microbiota is a complex ecosystem of symbiotic bacteria that contribute to human metabolism and supply intestinal metabolites, whose production is mainly influenced by the diet. Dietary patterns characterized by a high intake of protein promotes the growth of proteolytic bacteria's, which produce metabolites from undigested protein fermentation. Microbioal protein metabolites can regulate immune, metabolic and neuronal responses in different target organs. Metabolic pathways of these compounds and their mechanisms of action on different pathologies can lead to the discovery of new diagnostic techniques, drugs and the potential use as functional ingredients in food. This review discusses the potential mechanisms by which amino acid catabolism is involved in microbial protein metabolites. In addition, results from several studies on the association of products from the intestinal metabolism of indigestible proteins and the state of health or disease of the host are revised.
Collapse
Affiliation(s)
- José de Jesús Rodríguez-Romero
- Tecnológico Nacional de México, Instituto Tecnológico de Tepic, Laboratorio Integral de Investigación en Alimentos, División de Estudios de Posgrado, Av. Tecnológico No 2595, Col. Lagos del Country CP 63175, Tepic, Nayarit, México
| | - Alba Cecilia Durán-Castañeda
- Tecnológico Nacional de México, Instituto Tecnológico de Tepic, Laboratorio Integral de Investigación en Alimentos, División de Estudios de Posgrado, Av. Tecnológico No 2595, Col. Lagos del Country CP 63175, Tepic, Nayarit, México
| | - Alicia Paulina Cárdenas-Castro
- Tecnológico Nacional de México, Instituto Tecnológico de Tepic, Laboratorio Integral de Investigación en Alimentos, División de Estudios de Posgrado, Av. Tecnológico No 2595, Col. Lagos del Country CP 63175, Tepic, Nayarit, México
| | - Jorge Alberto Sánchez-Burgos
- Tecnológico Nacional de México, Instituto Tecnológico de Tepic, Laboratorio Integral de Investigación en Alimentos, División de Estudios de Posgrado, Av. Tecnológico No 2595, Col. Lagos del Country CP 63175, Tepic, Nayarit, México
| | - Victor Manuel Zamora-Gasga
- Tecnológico Nacional de México, Instituto Tecnológico de Tepic, Laboratorio Integral de Investigación en Alimentos, División de Estudios de Posgrado, Av. Tecnológico No 2595, Col. Lagos del Country CP 63175, Tepic, Nayarit, México
| | - Sonia Guadalupe Sáyago-Ayerdi
- Tecnológico Nacional de México, Instituto Tecnológico de Tepic, Laboratorio Integral de Investigación en Alimentos, División de Estudios de Posgrado, Av. Tecnológico No 2595, Col. Lagos del Country CP 63175, Tepic, Nayarit, México
| |
Collapse
|
10
|
Sabahi S, Homayouni Rad A, Aghebati-Maleki L, Sangtarash N, Ozma MA, Karimi A, Hosseini H, Abbasi A. Postbiotics as the new frontier in food and pharmaceutical research. Crit Rev Food Sci Nutr 2022; 63:8375-8402. [PMID: 35348016 DOI: 10.1080/10408398.2022.2056727] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Food is the essential need of human life and has nutrients that support growth and health. Gastrointestinal tract microbiota involves valuable microorganisms that develop therapeutic effects and are characterized as probiotics. The investigations on appropriate probiotic strains have led to the characterization of specific metabolic byproducts of probiotics named postbiotics. The probiotics must maintain their survival against inappropriate lethal conditions of the processing, storage, distribution, preparation, and digestion system so that they can exhibit their most health effects. Conversely, probiotic metabolites (postbiotics) have successfully overcome these unfavorable conditions and may be an appropriate alternative to probiotics. Due to their specific chemical structure, safe profile, long shelf-life, and the fact that they contain various signaling molecules, postbiotics may have anti-inflammatory, immunomodulatory, antihypertensive properties, inhibiting abnormal cell proliferation and antioxidative activities. Consequently, present scientific literature approves that postbiotics can mimic the fundamental and clinical role of probiotics, and due to their unique characteristics, they can be applied in an oral delivery system (pharmaceutical/functional foods), as a preharvest food safety hurdle, to promote the shelf-life of food products and develop novel functional foods or/and for developing health benefits, and therapeutic aims. This review addresses the latest postbiotic applications with regard to pharmaceutical formulations and commercial food-based products. Potential postbiotic applications in the promotion of host health status, prevention of disease, and complementary treatment are also reviewed.
Collapse
Affiliation(s)
- Sahar Sabahi
- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Aziz Homayouni Rad
- Department of Food Science and Technology, Faculty of Nutrition & Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Narges Sangtarash
- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahdi Asghari Ozma
- Department of Medical Bacteriology and Virology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Atefeh Karimi
- Department of Food Safety and Hygiene, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Hedayat Hosseini
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amin Abbasi
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
11
|
Abstract
The aim of this review is to provide an overview of how person-specific interactions between diet and the gut microbiota could play a role in affecting diet-induced weight loss responses. The highly person-specific gut microbiota, which is shaped by our diet, secretes digestive enzymes and molecules that affect digestion in the colon. Therefore, weight loss responses could in part depend on personal colonic fermentation responses, which affect energy extraction of food and production of microbial metabolites, such as short-chain fatty acids (SCFAs), which exert various effects on host metabolism. Colonic fermentation is the net result of the complex interplay between availability of dietary substrates, the functional capacity of the gut microbiome and environmental (abiotic) factors in the gut such as pH and transit time. While animal studies have demonstrated that the gut microbiota can causally affect obesity, causal and mechanistic evidence from human studies is still largely lacking. However, recent human studies have proposed that the baseline gut microbiota composition may predict diet-induced weight loss-responses. In particular, individuals characterised by high relative abundance of Prevotella have been found to lose more weight on diets rich in dietary fibre compared to individuals with low Prevotella abundance. Although harnessing of personal diet-microbiota interactions holds promise for more personalised nutrition and obesity management strategies to improve human health, there is currently insufficient evidence to unequivocally link the gut microbiota and weight loss in human subjects. To move the field forward, a greater understanding of the mechanistic underpinnings of personal diet-microbiota interactions is needed.
Collapse
|
12
|
The blood-brain barrier in aging and neurodegeneration. Mol Psychiatry 2022; 27:2659-2673. [PMID: 35361905 PMCID: PMC9156404 DOI: 10.1038/s41380-022-01511-z] [Citation(s) in RCA: 146] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 01/24/2022] [Accepted: 02/24/2022] [Indexed: 12/01/2022]
Abstract
The blood-brain barrier (BBB) is vital for maintaining brain homeostasis by enabling an exquisite control of exchange of compounds between the blood and the brain parenchyma. Moreover, the BBB prevents unwanted toxins and pathogens from entering the brain. This barrier, however, breaks down with age and further disruption is a hallmark of many age-related disorders. Several drugs have been explored, thus far, to protect or restore BBB function. With the recent connection between the BBB and gut microbiota, microbial-derived metabolites have been explored for their capabilities to protect and restore BBB physiology. This review, will focus on the vital components that make up the BBB, dissect levels of disruption of the barrier, and discuss current drugs and therapeutics that maintain barrier integrity and the recent discoveries of effects microbial-derived metabolites have on BBB physiology.
Collapse
|
13
|
Metabolite G-Protein Coupled Receptors in Cardio-Metabolic Diseases. Cells 2021; 10:cells10123347. [PMID: 34943862 PMCID: PMC8699532 DOI: 10.3390/cells10123347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 12/15/2022] Open
Abstract
G protein-coupled receptors (GPCRs) have originally been described as a family of receptors activated by hormones, neurotransmitters, and other mediators. However, in recent years GPCRs have shown to bind endogenous metabolites, which serve functions other than as signaling mediators. These receptors respond to fatty acids, mono- and disaccharides, amino acids, or various intermediates and products of metabolism, including ketone bodies, lactate, succinate, or bile acids. Given that many of these metabolic processes are dysregulated under pathological conditions, including diabetes, dyslipidemia, and obesity, receptors of endogenous metabolites have also been recognized as potential drug targets to prevent and/or treat metabolic and cardiovascular diseases. This review describes G protein-coupled receptors activated by endogenous metabolites and summarizes their physiological, pathophysiological, and potential pharmacological roles.
Collapse
|
14
|
Matusheski NV, Caffrey A, Christensen L, Mezgec S, Surendran S, Hjorth MF, McNulty H, Pentieva K, Roager HM, Seljak BK, Vimaleswaran KS, Remmers M, Péter S. Diets, nutrients, genes and the microbiome: recent advances in personalised nutrition. Br J Nutr 2021; 126:1489-1497. [PMID: 33509307 PMCID: PMC8524424 DOI: 10.1017/s0007114521000374] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 01/13/2021] [Accepted: 01/23/2021] [Indexed: 12/28/2022]
Abstract
As individuals seek increasingly individualised nutrition and lifestyle guidance, numerous apps and nutrition programmes have emerged. However, complex individual variations in dietary behaviours, genotypes, gene expression and composition of the microbiome are increasingly recognised. Advances in digital tools and artificial intelligence can help individuals more easily track nutrient intakes and identify nutritional gaps. However, the influence of these nutrients on health outcomes can vary widely among individuals depending upon life stage, genetics and microbial composition. For example, folate may elicit favourable epigenetic effects on brain development during a critical developmental time window of pregnancy. Genes affecting vitamin B12 metabolism may lead to cardiometabolic traits that play an essential role in the context of obesity. Finally, an individual's gut microbial composition can determine their response to dietary fibre interventions during weight loss. These recent advances in understanding can lead to a more complete and integrated approach to promoting optimal health through personalised nutrition, in clinical practice settings and for individuals in their daily lives. The purpose of this review is to summarise presentations made during the DSM Science and Technology Award Symposium at the 13th European Nutrition Conference, which focused on personalised nutrition and novel technologies for health in the modern world.
Collapse
Affiliation(s)
- Nathan V. Matusheski
- Nutrition Science and Advocacy, DSM Nutritional Products LLC, Parsippany, NJ, USA
| | - Aoife Caffrey
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, ColeraineBT52 1SA, Northern Republic of Ireland
| | - Lars Christensen
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Frederiksberg, Denmark
| | - Simon Mezgec
- Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000Ljubljana, Slovenia
| | - Shelini Surendran
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Whiteknights, ReadingRG6 6DZ, UK
| | - Mads F. Hjorth
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Frederiksberg, Denmark
| | - Helene McNulty
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, ColeraineBT52 1SA, Northern Republic of Ireland
| | - Kristina Pentieva
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, ColeraineBT52 1SA, Northern Republic of Ireland
| | - Henrik M. Roager
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Frederiksberg, Denmark
| | - Barbara Koroušić Seljak
- Computer Systems Department, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Ljubljana, Slovenia
| | | | | | - Szabolcs Péter
- Nutrition Innovation Center, DSM Nutritional Products Ltd, Kaiseraugst, Switzerland
| |
Collapse
|
15
|
Emwas AHM, Al-Rifai N, Szczepski K, Alsuhaymi S, Rayyan S, Almahasheer H, Jaremko M, Brennan L, Lachowicz JI. You Are What You Eat: Application of Metabolomics Approaches to Advance Nutrition Research. Foods 2021; 10:1249. [PMID: 34072780 PMCID: PMC8229064 DOI: 10.3390/foods10061249] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 12/17/2022] Open
Abstract
A healthy condition is defined by complex human metabolic pathways that only function properly when fully satisfied by nutritional inputs. Poor nutritional intakes are associated with a number of metabolic diseases, such as diabetes, obesity, atherosclerosis, hypertension, and osteoporosis. In recent years, nutrition science has undergone an extraordinary transformation driven by the development of innovative software and analytical platforms. However, the complexity and variety of the chemical components present in different food types, and the diversity of interactions in the biochemical networks and biological systems, makes nutrition research a complicated field. Metabolomics science is an "-omic", joining proteomics, transcriptomics, and genomics in affording a global understanding of biological systems. In this review, we present the main metabolomics approaches, and highlight the applications and the potential for metabolomics approaches in advancing nutritional food research.
Collapse
Affiliation(s)
- Abdul-Hamid M. Emwas
- Imaging and Characterization Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| | - Nahla Al-Rifai
- Environmental Technology Management (2005-2012), College for Women, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait;
| | - Kacper Szczepski
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (K.S.); (S.A.); (M.J.)
| | - Shuruq Alsuhaymi
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (K.S.); (S.A.); (M.J.)
| | - Saleh Rayyan
- Chemistry Department, Birzeit University, Birzeit 627, Palestine;
| | - Hanan Almahasheer
- Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University (IAU), Dammam 31441-1982, Saudi Arabia;
| | - Mariusz Jaremko
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (K.S.); (S.A.); (M.J.)
| | - Lorraine Brennan
- Institute of Food and Health and Conway Institute, School of Agriculture & Food Science, Dublin 4, Ireland;
| | - Joanna Izabela Lachowicz
- Department of Medical Sciences and Public Health, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy
| |
Collapse
|
16
|
Dorelli B, Gallè F, De Vito C, Duranti G, Iachini M, Zaccarin M, Preziosi Standoli J, Ceci R, Romano F, Liguori G, Romano Spica V, Sabatini S, Valeriani F, Cattaruzza MS. Can Physical Activity Influence Human Gut Microbiota Composition Independently of Diet? A Systematic Review. Nutrients 2021; 13:nu13061890. [PMID: 34072834 PMCID: PMC8228232 DOI: 10.3390/nu13061890] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/21/2021] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
Evidence suggests that physical activity (PA) influences the human gut microbiota composition, but its role is unclear because of dietary interference. The aim of this review is to clarify this issue from this new perspective in healthy individuals. Articles analyzing intestinal microbiota from fecal samples by 16S rRNA amplicon sequencing were selected by searching the electronic databases PubMed, Scopus, and Web of Science until December 2020. For each study, methodological quality was assessed, and results about microbiota biodiversity indices, phylum and genus composition, and information on PA and diet were considered. From 997 potentially relevant articles, 10 met the inclusion criteria and were analyzed. Five studies involved athletes, three were performed on active people classified on the basis of habitual PA level, and two among sedentary subjects undergoing exercise interventions. The majority of the studies reported higher variability and prevalence of the phylum Firmicutes (genera Ruminococcaceae or Fecalibacteria) in active compared to inactive individuals, especially in athletes. The assessment of diet as a possible confounder of PA/exercise effects was completed only in four studies. They reported a similar abundance of Lachnospiraceae, Paraprevotellaceae, Ruminococcaceae, and Veillonellaceae, which are involved in metabolic, protective, structural, and histological functions. Further studies are needed to confirm these findings.
Collapse
Affiliation(s)
- Barbara Dorelli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Roma, Italy; (B.D.); (C.D.V.); (M.I.); (M.Z.); (J.P.S.); (F.R.); (M.S.C.)
| | - Francesca Gallè
- Department of Movement Sciences and Wellbeing, University of Naples “Parthenope”, 80133 Napoli, Italy; (F.G.); (G.L.)
| | - Corrado De Vito
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Roma, Italy; (B.D.); (C.D.V.); (M.I.); (M.Z.); (J.P.S.); (F.R.); (M.S.C.)
| | - Guglielmo Duranti
- Department of Movement, Human, and Health Sciences, University of Rome “Foro Italico”, 00135 Roma, Italy; (R.C.); (V.R.S.); (S.S.)
- Correspondence: (G.D.); (F.V.); Tel.: +39-0636733479 (G.D.); +39-0636733223 (F.V.)
| | - Matteo Iachini
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Roma, Italy; (B.D.); (C.D.V.); (M.I.); (M.Z.); (J.P.S.); (F.R.); (M.S.C.)
| | - Matteo Zaccarin
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Roma, Italy; (B.D.); (C.D.V.); (M.I.); (M.Z.); (J.P.S.); (F.R.); (M.S.C.)
| | - Jacopo Preziosi Standoli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Roma, Italy; (B.D.); (C.D.V.); (M.I.); (M.Z.); (J.P.S.); (F.R.); (M.S.C.)
| | - Roberta Ceci
- Department of Movement, Human, and Health Sciences, University of Rome “Foro Italico”, 00135 Roma, Italy; (R.C.); (V.R.S.); (S.S.)
| | - Ferdinando Romano
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Roma, Italy; (B.D.); (C.D.V.); (M.I.); (M.Z.); (J.P.S.); (F.R.); (M.S.C.)
| | - Giorgio Liguori
- Department of Movement Sciences and Wellbeing, University of Naples “Parthenope”, 80133 Napoli, Italy; (F.G.); (G.L.)
| | - Vincenzo Romano Spica
- Department of Movement, Human, and Health Sciences, University of Rome “Foro Italico”, 00135 Roma, Italy; (R.C.); (V.R.S.); (S.S.)
| | - Stefania Sabatini
- Department of Movement, Human, and Health Sciences, University of Rome “Foro Italico”, 00135 Roma, Italy; (R.C.); (V.R.S.); (S.S.)
| | - Federica Valeriani
- Department of Movement, Human, and Health Sciences, University of Rome “Foro Italico”, 00135 Roma, Italy; (R.C.); (V.R.S.); (S.S.)
- Correspondence: (G.D.); (F.V.); Tel.: +39-0636733479 (G.D.); +39-0636733223 (F.V.)
| | - Maria Sofia Cattaruzza
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Roma, Italy; (B.D.); (C.D.V.); (M.I.); (M.Z.); (J.P.S.); (F.R.); (M.S.C.)
| |
Collapse
|
17
|
Yang KL, Lejeune A, Chang G, Scher JU, Koralov SB. Microbial-derived antigens and metabolites in spondyloarthritis. Semin Immunopathol 2021; 43:163-172. [PMID: 33569635 DOI: 10.1007/s00281-021-00844-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 01/20/2021] [Indexed: 12/30/2022]
Abstract
Spondyloarthritis (SpA) is a group of chronic, immune-mediated, inflammatory diseases affecting the bone, synovium, and enthesis. Microbiome, the community of microorganisms that has co-evolved with human hosts, plays a pivotal role in human health and disease. This invisible "essential organ" supplies the host with a myriad of chemicals and molecules. In turn, microbial metabolites can serve as messengers for microbes to communicate with each other and in the cross-talk with host cells. Gut dysbiosis in SpA is associated with altered microbial metabolites, and an accumulated body of research has contributed to the understanding that changes in intestinal microbiota can modulate disease pathogenesis. We review the novel findings from human and animal studies to provide an overview of the contribution of individual microbial metabolites and antigens to SpA.
Collapse
Affiliation(s)
- Katharine Lu Yang
- Department of Pathology, NYU School of Medicine, 522 First Ave. Smilow Research Bldg 511, New York, NY, 10016, USA
| | - Alannah Lejeune
- Department of Pathology, NYU School of Medicine, 522 First Ave. Smilow Research Bldg 511, New York, NY, 10016, USA
| | - Gregory Chang
- Department of Radiology, NYU School of Medicine, New York, NY, 10016, USA
| | - Jose U Scher
- Division of Rheumatology, Department of Medicine, NYU School of Medicine, New York, NY, 10016, USA. .,Division of Rheumatology and Psoriatic Arthritis Center, 301 East 17th St, Room 1608, New York, NY, 10003, USA.
| | - Sergei B Koralov
- Department of Pathology, NYU School of Medicine, 522 First Ave. Smilow Research Bldg 511, New York, NY, 10016, USA.
| |
Collapse
|
18
|
Mohseni AH, Taghinezhad-S S, Fu X. Gut microbiota-derived metabolites and colorectal cancer: New insights and updates. Microb Pathog 2020; 149:104569. [DOI: 10.1016/j.micpath.2020.104569] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 10/04/2020] [Accepted: 10/12/2020] [Indexed: 12/16/2022]
|
19
|
Yang F, DeLuca JAA, Menon R, Garcia-Vilarato E, Callaway E, Landrock KK, Lee K, Safe SH, Chapkin RS, Allred CD, Jayaraman A. Effect of diet and intestinal AhR expression on fecal microbiome and metabolomic profiles. Microb Cell Fact 2020; 19:219. [PMID: 33256731 PMCID: PMC7708923 DOI: 10.1186/s12934-020-01463-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 10/28/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Diet, loss of aryl hydrocarbon receptor (AhR) expression and their modification of the gut microbiota community composition and its metabolites affect the development of colorectal cancer (CRC). However, the concordance between fecal microbiota composition and the fecal metabolome is poorly understood. Mice with specific AhR deletion (AhRKO) in intestinal epithelial cell and their wild-type littermates were fed a low-fat diet or a high-fat diet. Shifts in the fecal microbiome and metabolome associated with diet and loss of AhR expression were assessed. Microbiome and metabolome data were integrated to identify specific microbial taxa that contributed to the observed metabolite shifts. RESULTS Our analysis shows that diet has a more pronounced effect on mouse fecal microbiota composition than the impact of the loss of AhR. In contrast, metabolomic analysis showed that the loss of AhR in intestinal epithelial cells had a more pronounced effect on metabolite profile compared to diet. Integration analysis of microbiome and metabolome identified unclassified Clostridiales, unclassified Desulfovibrionaceae, and Akkermansia as key contributors to the synthesis and/or utilization of tryptophan metabolites. CONCLUSIONS Akkermansia are likely to contribute to the synthesis and/or degradation of tryptophan metabolites. Our study highlights the use of multi-omic analysis to investigate the relationship between the microbiome and metabolome and identifies possible taxa that can be targeted to manipulate the microbiome for CRC treatment.
Collapse
Affiliation(s)
- Fang Yang
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | | | - Rani Menon
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | | | - Evelyn Callaway
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | | | - Kyongbum Lee
- Department of Chemical and Biological Engineering, Tufts University, Medford, MA, USA
| | - Stephen H Safe
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, USA
| | - Robert S Chapkin
- Department of Nutrition, Texas A&M University, College Station, TX, USA
| | - Clinton D Allred
- Department of Nutrition, Texas A&M University, College Station, TX, USA
| | - Arul Jayaraman
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, USA.
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA.
| |
Collapse
|
20
|
Davidson GL, Wiley N, Cooke AC, Johnson CN, Fouhy F, Reichert MS, de la Hera I, Crane JMS, Kulahci IG, Ross RP, Stanton C, Quinn JL. Diet induces parallel changes to the gut microbiota and problem solving performance in a wild bird. Sci Rep 2020; 10:20783. [PMID: 33247162 PMCID: PMC7699645 DOI: 10.1038/s41598-020-77256-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 10/15/2020] [Indexed: 12/11/2022] Open
Abstract
The microbial community in the gut is influenced by environmental factors, especially diet, which can moderate host behaviour through the microbiome-gut-brain axis. However, the ecological relevance of microbiome-mediated behavioural plasticity in wild animals is unknown. We presented wild-caught great tits (Parus major) with a problem-solving task and showed that performance was weakly associated with variation in the gut microbiome. We then manipulated the gut microbiome by feeding birds one of two diets that differed in their relative levels of fat, protein and fibre content: an insect diet (low content), or a seed diet (high content). Microbial communities were less diverse among individuals given the insect compared to those on the seed diet. Individuals were less likely to problem-solve after being given the insect diet, and the same microbiota metrics that were altered as a consequence of diet were also those that correlated with variation in problem solving performance. Although the effect on problem-solving behaviour could have been caused by motivational or nutritional differences between our treatments, our results nevertheless raise the possibility that dietary induced changes in the gut microbiota could be an important mechanism underlying individual behavioural plasticity in wild populations.
Collapse
Affiliation(s)
- Gabrielle L Davidson
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland.
- Department of Psychology, Downing Street, University of Cambridge, Cambridge, UK.
| | - Niamh Wiley
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - Amy C Cooke
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
| | - Crystal N Johnson
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - Fiona Fouhy
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - Michael S Reichert
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
- Department of Integrative Biology, Oklahoma State University, Stillwater, USA
| | - Iván de la Hera
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
- Department of Integrative Biology, Oklahoma State University, Stillwater, USA
| | - Jodie M S Crane
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
- Kākāpō Recovery Programme, Department of Conservation, 7th Floor, 33 Don Street, Invercargill, 9810, New Zealand
| | - Ipek G Kulahci
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
- Department of Biological Sciences, University of Notre Dame, 100 Galvin Life Science Center, Notre Dame, IN, 46556, USA
| | - R Paul Ross
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - Catherine Stanton
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - John L Quinn
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland.
- Environmental Research Institute, University College Cork, Cork, Ireland.
| |
Collapse
|
21
|
High Fat-High Fructose Diet-Induced Changes in the Gut Microbiota Associated with Dyslipidemia in Syrian Hamsters. Nutrients 2020; 12:nu12113557. [PMID: 33233570 PMCID: PMC7699731 DOI: 10.3390/nu12113557] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/15/2022] Open
Abstract
Aim: The objective of this study was to characterize the early effects of high fructose diets (with and without high fat) on both the composition of the gut microbiota and lipid metabolism in Syrian hamsters, a reproducible preclinical model of diet-induced dyslipidemia. Methods: Eight-week-old male hamsters were fed diets consisting of high-fat/high-fructose, low-fat/high-fructose or a standard chow diet for 14 days. Stool was collected at baseline (day 0), day 7 and day 14. Fasting levels of plasma triglycerides and cholesterol were monitored on day 0, day 7 and day 14, and nonfasting levels were also assayed on day 15. Then, 16S rRNA sequencing of stool samples was used to determine gut microbial composition, and predictive metagenomics was performed to evaluate dietary-induced shifts in deduced microbial functions. Results: Both high-fructose diets resulted in divergent gut microbiota composition. A high-fat/high-fructose diet induced the largest shift in overall gut microbial composition, with dramatic shifts in the Firmicute/Bacteroidetes ratio, and changes in beta diversity after just seven days of dietary intervention. Significant associations between genus level taxa and dietary intervention were identified, including an association with Ruminococceace NK4A214 group in high-fat/high-fructose fed animals and an association with Butryimonas with the low-fat/high-fructose diet. High-fat/high-fructose feeding induced dyslipidemia with increases in plasma triglycerides and cholesterol, and hepatomegaly. Dietary-induced changes in several genus level taxa significantly correlated with lipid levels over the two-week period. Differences in microbial metabolic pathways between high-fat/high-fructose and low-fat/high-fructose diet fed hamsters were identified, and several of these pathways also correlated with lipid profiles in hamsters. Conclusions: The high-fat/high-fructose diet caused shifts in the host gut microbiota. These dietary-induced alterations in gut microbial composition were linked to changes in the production of secondary metabolites, which contributed to the development of metabolic syndrome in the host.
Collapse
|
22
|
De Filippis F, Pasolli E, Ercolini D. Newly Explored Faecalibacterium Diversity Is Connected to Age, Lifestyle, Geography, and Disease. Curr Biol 2020; 30:4932-4943.e4. [PMID: 33065016 DOI: 10.1016/j.cub.2020.09.063] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/02/2020] [Accepted: 09/18/2020] [Indexed: 12/16/2022]
Abstract
Faecalibacterium is prevalent in the human gut and a promising microbe for the development of next-generation probiotics (NGPs) or biotherapeutics. Analyzing reference Faecalibacterium genomes and almost 3,000 Faecalibacterium-like metagenome-assembled genomes (MAGs) reconstructed from 7,907 human and 203 non-human primate gut metagenomes, we identified the presence of 22 different Faecalibacterium-like species-level genome bins (SGBs), some further divided in different strains according to the subject geographical origin. Twelve SGBs are globally spread in the human gut and show different genomic potential in the utilization of complex polysaccharides, suggesting that higher SGB diversity may be related with increased utilization of plant-based foods. Moreover, up to 11 different species may co-occur in the same subject, with lower diversity in Western populations, as well as intestinal inflammatory states and obesity. The newly explored Faecalibacterium diversity will be able to support the choice of strains suitable as NGPs, guided by the consideration of the differences existing in their functional potential.
Collapse
Affiliation(s)
- Francesca De Filippis
- Department of Agricultural Sciences, University of Naples Federico II, Portici 80055, Italy; Task Force on Microbiome Studies, University of Naples Federico II, Naples 80100, Italy
| | - Edoardo Pasolli
- Department of Agricultural Sciences, University of Naples Federico II, Portici 80055, Italy; Task Force on Microbiome Studies, University of Naples Federico II, Naples 80100, Italy
| | - Danilo Ercolini
- Department of Agricultural Sciences, University of Naples Federico II, Portici 80055, Italy; Task Force on Microbiome Studies, University of Naples Federico II, Naples 80100, Italy.
| |
Collapse
|
23
|
Puccetti M, Xiroudaki S, Ricci M, Giovagnoli S. Postbiotic-Enabled Targeting of the Host-Microbiota-Pathogen Interface: Hints of Antibiotic Decline? Pharmaceutics 2020; 12:E624. [PMID: 32635461 PMCID: PMC7408102 DOI: 10.3390/pharmaceutics12070624] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/24/2020] [Accepted: 07/01/2020] [Indexed: 02/06/2023] Open
Abstract
Mismanagement of bacterial infection therapies has undermined the reliability and efficacy of antibiotic treatments, producing a profound crisis of the antibiotic drug market. It is by now clear that tackling deadly infections demands novel strategies not only based on the mere toxicity of anti-infective compounds. Host-directed therapies have been the first example as novel treatments with alternate success. Nevertheless, recent advances in the human microbiome research have provided evidence that compounds produced by the microbial metabolism, namely postbiotics, can have significant impact on human health. Such compounds target the host-microbe-pathogen interface rescuing biotic and immune unbalances as well as inflammation, thus providing novel therapeutic opportunities. This work discusses critically, through literature review and personal contributions, these novel nonantibiotic treatment strategies for infectious disease management and resistance prevention, which could represent a paradigm change rocking the foundation of current antibiotic therapy tenets.
Collapse
Affiliation(s)
| | | | | | - Stefano Giovagnoli
- Department of Pharmaceutical Sciences, via del Liceo 1, University of Perugia, 06123 Perugia, Italy; (M.P.); (S.X.); (M.R.)
| |
Collapse
|
24
|
De Filippis F, Pasolli E, Ercolini D. The food-gut axis: lactic acid bacteria and their link to food, the gut microbiome and human health. FEMS Microbiol Rev 2020; 44:454-489. [PMID: 32556166 PMCID: PMC7391071 DOI: 10.1093/femsre/fuaa015] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 05/20/2020] [Indexed: 12/18/2022] Open
Abstract
Lactic acid bacteria (LAB) are present in foods, the environment and the animal gut, although fermented foods (FFs) are recognized as the primary niche of LAB activity. Several LAB strains have been studied for their health-promoting properties and are employed as probiotics. FFs are recognized for their potential beneficial effects, which we review in this article. They are also an important source of LAB, which are ingested daily upon FF consumption. In this review, we describe the diversity of LAB and their occurrence in food as well as the gut microbiome. We discuss the opportunities to study LAB diversity and functional properties by considering the availability of both genomic and metagenomic data in public repositories, as well as the different latest computational tools for data analysis. In addition, we discuss the role of LAB as potential probiotics by reporting the prevalence of key genomic features in public genomes and by surveying the outcomes of LAB use in clinical trials involving human subjects. Finally, we highlight the need for further studies aimed at improving our knowledge of the link between LAB-fermented foods and the human gut from the perspective of health promotion.
Collapse
Affiliation(s)
- Francesca De Filippis
- Department of Agricultural Sciences, University of Naples Federico II, via Università, 100, 80055, Portici (NA)Italy
- Task Force on Microbiome Studies, Corso Umberto I, 40, 80100, Napoli, Italy
| | - Edoardo Pasolli
- Department of Agricultural Sciences, University of Naples Federico II, via Università, 100, 80055, Portici (NA)Italy
- Task Force on Microbiome Studies, Corso Umberto I, 40, 80100, Napoli, Italy
| | - Danilo Ercolini
- Department of Agricultural Sciences, University of Naples Federico II, via Università, 100, 80055, Portici (NA)Italy
- Task Force on Microbiome Studies, Corso Umberto I, 40, 80100, Napoli, Italy
| |
Collapse
|
25
|
Meslier V, Laiola M, Roager HM, De Filippis F, Roume H, Quinquis B, Giacco R, Mennella I, Ferracane R, Pons N, Pasolli E, Rivellese A, Dragsted LO, Vitaglione P, Ehrlich SD, Ercolini D. Mediterranean diet intervention in overweight and obese subjects lowers plasma cholesterol and causes changes in the gut microbiome and metabolome independently of energy intake. Gut 2020; 69:1258-1268. [PMID: 32075887 PMCID: PMC7306983 DOI: 10.1136/gutjnl-2019-320438] [Citation(s) in RCA: 227] [Impact Index Per Article: 56.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/17/2020] [Accepted: 01/21/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVES This study aimed to explore the effects of an isocaloric Mediterranean diet (MD) intervention on metabolic health, gut microbiome and systemic metabolome in subjects with lifestyle risk factors for metabolic disease. DESIGN Eighty-two healthy overweight and obese subjects with a habitually low intake of fruit and vegetables and a sedentary lifestyle participated in a parallel 8-week randomised controlled trial. Forty-three participants consumed an MD tailored to their habitual energy intakes (MedD), and 39 maintained their regular diets (ConD). Dietary adherence, metabolic parameters, gut microbiome and systemic metabolome were monitored over the study period. RESULTS Increased MD adherence in the MedD group successfully reprogrammed subjects' intake of fibre and animal proteins. Compliance was confirmed by lowered levels of carnitine in plasma and urine. Significant reductions in plasma cholesterol (primary outcome) and faecal bile acids occurred in the MedD compared with the ConD group. Shotgun metagenomics showed gut microbiome changes that reflected individual MD adherence and increase in gene richness in participants who reduced systemic inflammation over the intervention. The MD intervention led to increased levels of the fibre-degrading Faecalibacterium prausnitzii and of genes for microbial carbohydrate degradation linked to butyrate metabolism. The dietary changes in the MedD group led to increased urinary urolithins, faecal bile acid degradation and insulin sensitivity that co-varied with specific microbial taxa. CONCLUSION Switching subjects to an MD while maintaining their energy intake reduced their blood cholesterol and caused multiple changes in their microbiome and metabolome that are relevant in future strategies for the improvement of metabolic health.
Collapse
Affiliation(s)
| | - Manolo Laiola
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Henrik Munch Roager
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Francesca De Filippis
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy,Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy
| | - Hugo Roume
- Université Paris-Saclay, INRAE, MGP, Jouy-en-Josas, France
| | | | | | - Ilario Mennella
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Rosalia Ferracane
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Nicolas Pons
- Université Paris-Saclay, INRAE, MGP, Jouy-en-Josas, France
| | - Edoardo Pasolli
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy,Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy
| | - Angela Rivellese
- Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy,Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Lars Ove Dragsted
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Paola Vitaglione
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy .,Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy
| | | | - Danilo Ercolini
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy .,Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy
| |
Collapse
|
26
|
Johnson AJ, Zheng JJ, Kang JW, Saboe A, Knights D, Zivkovic AM. A Guide to Diet-Microbiome Study Design. Front Nutr 2020; 7:79. [PMID: 32596250 PMCID: PMC7303276 DOI: 10.3389/fnut.2020.00079] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 05/04/2020] [Indexed: 12/12/2022] Open
Abstract
Intense recent interest in understanding how the human gut microbiome influences health has kindled a concomitant interest in linking dietary choices to microbiome variation. Diet is known to be a driver of microbiome variation, and yet the precise mechanisms by which certain dietary components modulate the microbiome, and by which the microbiome produces byproducts and secondary metabolites from dietary components, are not well-understood. Interestingly, despite the influence of diet on the gut microbiome, the majority of microbiome studies published to date contain little or no analysis of dietary intake. Although an increasing number of microbiome studies are now collecting some form of dietary data or even performing diet interventions, there are no clear standards in the microbiome field for how to collect diet data or how to design a diet-microbiome study. In this article, we review the current practices in diet-microbiome analysis and study design and make several recommendations for best practices to provoke broader discussion in the field. We recommend that microbiome studies include multiple consecutive microbiome samples per study timepoint or phase and multiple days of dietary history prior to each microbiome sample whenever feasible. We find evidence that direct effects of diet on the microbiome are likely to be observable within days, while the length of an intervention required for observing microbiome-mediated effects on the host phenotype or host biomarkers, depending on the outcome, may be much longer, on the order of weeks or months. Finally, recent studies demonstrating that diet-microbiome interactions are personalized suggest that diet-microbiome studies should either include longitudinal sampling within individuals to identify personalized responses, or should include an adequate number of participants spanning a range of microbiome types to identify generalized responses.
Collapse
Affiliation(s)
- Abigail J Johnson
- BioTechnology Institute, College of Biological Sciences, University of Minnesota, Minneapolis, MN, United States
| | - Jack Jingyuan Zheng
- Department of Nutrition, University of California, Davis, Davis, CA, United States
| | - Jea Woo Kang
- Department of Nutrition, University of California, Davis, Davis, CA, United States
| | - Anna Saboe
- BioTechnology Institute, College of Biological Sciences, University of Minnesota, Minneapolis, MN, United States
| | - Dan Knights
- BioTechnology Institute, College of Biological Sciences, University of Minnesota, Minneapolis, MN, United States.,Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN, United States
| | - Angela M Zivkovic
- Department of Nutrition, University of California, Davis, Davis, CA, United States
| |
Collapse
|
27
|
Gibson‐Moore H. Gutsy red wine: Could this be a literal meaning in terms of gut microbial diversity? NUTR BULL 2020. [DOI: 10.1111/nbu.12436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
28
|
Cortés-Martín A, Selma MV, Tomás-Barberán FA, González-Sarrías A, Espín JC. Where to Look into the Puzzle of Polyphenols and Health? The Postbiotics and Gut Microbiota Associated with Human Metabotypes. Mol Nutr Food Res 2020; 64:e1900952. [PMID: 32196920 DOI: 10.1002/mnfr.201900952] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/19/2020] [Indexed: 12/23/2022]
Abstract
The full consensus on the role of dietary polyphenols as human-health-promoting compounds remains elusive. The two-way interaction between polyphenols and gut microbiota (GM) (i.e., modulation of GM by polyphenols and their catabolism by the GM) is determinant in polyphenols' effects. The identification of human metabotypes associated with a differential gut microbial metabolism of polyphenols has opened new research scenarios to explain the inter-individual variability upon polyphenols consumption. The metabotypes unequivocally identified so far are those involved in the metabolism of isoflavones (equol and(or) O-desmethylangolesin producers versus non-producers) and ellagic acid (urolithin metabotypes, including producers of only urolithin-A (UM-A), producers of urolithin-A, isourolithin-A, and urolithin-B (UM-B), and non-producers (UM-0)). In addition, the microbial metabolites (phenolic-derived postbiotics) such as equol, urolithins, valerolactones, enterolactone, and enterodiol, and 8-prenylnaringenin, among others, can exert differential health effects. The knowledge is updated and position is taken here on i) the two-way interaction between GM and polyphenols, ii) the evidence between phenolic-derived postbiotics and health, iii) the role of metabotypes as biomarkers of GM and the clustering of individuals depending on their metabotypes (metabotyping) to explain polyphenols' effects, and iv) the gut microbial metabolism of catecholamines to illustrate the intersection between personalized nutrition and precision medicine.
Collapse
Affiliation(s)
- Adrián Cortés-Martín
- Laboratory of Food & Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC, Campus de Espinardo, Murcia, 30100, Spain
| | - María Victoria Selma
- Laboratory of Food & Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC, Campus de Espinardo, Murcia, 30100, Spain
| | - Francisco Abraham Tomás-Barberán
- Laboratory of Food & Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC, Campus de Espinardo, Murcia, 30100, Spain
| | - Antonio González-Sarrías
- Laboratory of Food & Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC, Campus de Espinardo, Murcia, 30100, Spain
| | - Juan Carlos Espín
- Laboratory of Food & Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC, Campus de Espinardo, Murcia, 30100, Spain
| |
Collapse
|
29
|
Extraction, Enrichment, and Quantification of Main Antioxidant Aglycones of Flavonoids and Tannins from Melastoma Dodecandrum Lour.: Guided by UPLC-ESI-MS/MS. J CHEM-NY 2019. [DOI: 10.1155/2019/2793058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The objective of this work was to determine the main antioxidant aglycones of flavonoids and tannins in antioxidant extracts from Melastoma dodecandrum Lour. (MD), based on its extraction and purification process optimization and component identification by UPLC-ESI-MS/MS. Firstly, the ultrasound-assisted extraction (UAE) process for antioxidants was established by using single factor tests and response surface optimization. Evaluating by DPPH radical scavenging assay, the antioxidant capacity of MD could reach 2742.27 ± 93.86 (μmol Trolox/g) under the optimized conditions including methanol concentration (61%, v/v), extraction time (45 min), liquid-solid ratio (0.46 ml/mg), and extraction temperature (25°C). Then, the antioxidants in the solution were enriched by using macroporous resins. Because of the highest adsorption capacity and desorption ratio, HPD 500 was selected out of 14 macroporous resins for further study based on the static adsorption and desorption tests. The adsorption mechanism of the HPD 500 resin presented that pseudo-first-order kinetics model and Freundlich isotherm model could adequately explain the adsorption process. After the antioxidants were dynamically saturated by HPD 500, the column was eluted with different concentrations of ethanol (0, 25, 50, 75, and 100%, v/v). Among the above five ethanol fractions, 50% ethanol fraction showed the strongest antioxidant activity and more than 95% antioxidants adsorbed in HPD500 could be eluted by 75% ethanol. Guided by analysis results of UPLC-ESI-MS/MS, main antioxidant aglycones of flavonoids and tannins in each ethanol elution fraction were quantitatively detected. Finally, according to the correlation analysis between the antioxidant capacity of each ethanol elution fraction and its content of 10 main flavonoids and phenolic acids, the antioxidant activities of MD could mainly contribute to tannins containing phenolic units such as ellagic acid and/or gallic acid. The results of this work would provide useful information for the production of antioxidants from MD. Thus, the analysis methods could also be a quality control tool for material or products related with MD.
Collapse
|