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Xu J, Xu H, Yang F, Xie Y, Cai F, Mao S, Lu M, Zhuang H, Hua Z. Different depths of food restriction and high-fat diet refeeding in mice impact host obesity and metabolic phenotypes with correlative changes in the gut microbiota. MedComm (Beijing) 2024; 5:e641. [PMID: 39021516 PMCID: PMC11253304 DOI: 10.1002/mco2.641] [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: 11/09/2023] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 07/20/2024] Open
Abstract
Overweight and obesity affect almost 2 billion adults worldwide, and food restriction (FR) is commonly used to reduce body fat. Whether refeeding (Re) after FR at different ages and to different degrees leads to overweight and its possible mechanisms are uncertain. In this study, adult and young mice were both restricted to 15% and 40% of their casual food intake, and then were fed 60% high-fat chow (FR15%-Re, FR40%-Re), whereas the control groups(CON) consumed high-fat or normal food throughout, respectively. The results of the study suggest that mild FR-heavy feeding may lead to more significant abnormal fat accumulation, liver damage, and increased recruitment of intestinal inflammatory factors and immune cells in mice of different ages and involves multiple types of alterations in the gut microbiota. Further fecal transplantation experiments as well as serum and liver enzyme-linked immunosorbent assay experiments preliminarily suggest that the link between lipid metabolism and inflammatory responses and the gut microbiota may be related to the regulation of the gut and live by Lipopolysaccharides(LPS) and Peroxisome Proliferator-Activated Receptor-Alpha(PPAR-α). In addition, our study may also serve as a reference for studying obesity prevention and treatment programs at different ages.
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Affiliation(s)
- Jiaqi Xu
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Neurology of Nanjing Drum Tower HospitalSchool of Life Sciences and The Affiliated Hospital of Nanjing University Medical School, Nanjing UniversityNanjingChina
| | - Huangru Xu
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Neurology of Nanjing Drum Tower HospitalSchool of Life Sciences and The Affiliated Hospital of Nanjing University Medical School, Nanjing UniversityNanjingChina
| | - Feiyan Yang
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Neurology of Nanjing Drum Tower HospitalSchool of Life Sciences and The Affiliated Hospital of Nanjing University Medical School, Nanjing UniversityNanjingChina
| | - Yawen Xie
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Neurology of Nanjing Drum Tower HospitalSchool of Life Sciences and The Affiliated Hospital of Nanjing University Medical School, Nanjing UniversityNanjingChina
| | - Fangfang Cai
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Neurology of Nanjing Drum Tower HospitalSchool of Life Sciences and The Affiliated Hospital of Nanjing University Medical School, Nanjing UniversityNanjingChina
| | - Siyu Mao
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Neurology of Nanjing Drum Tower HospitalSchool of Life Sciences and The Affiliated Hospital of Nanjing University Medical School, Nanjing UniversityNanjingChina
| | - Min Lu
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Neurology of Nanjing Drum Tower HospitalSchool of Life Sciences and The Affiliated Hospital of Nanjing University Medical School, Nanjing UniversityNanjingChina
| | - Hongqin Zhuang
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Neurology of Nanjing Drum Tower HospitalSchool of Life Sciences and The Affiliated Hospital of Nanjing University Medical School, Nanjing UniversityNanjingChina
| | - Zi‐Chun Hua
- The State Key Laboratory of Pharmaceutical Biotechnology and Department of Neurology of Nanjing Drum Tower HospitalSchool of Life Sciences and The Affiliated Hospital of Nanjing University Medical School, Nanjing UniversityNanjingChina
- Faculty of Pharmaceutical SciencesXinxiang Medical UniversityXinxiangChina
- Changzhou High‐Tech Research Institute of Nanjing University and Jiangsu TargetPharma Laboratories Inc.ChangzhouChina
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2
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Daysita LE, Aulia HR, Pradiva MI, Nandyawati D, Illaningtyas F, Gebrina AD, Mustafawi WZ, Benigna K, Nuraida L, Wulandari N. Characterization and shelf life of synbiotic drink powder from porang ( Amorphophallus muelleri). JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2024; 61:1272-1282. [PMID: 38910933 PMCID: PMC11189888 DOI: 10.1007/s13197-023-05894-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/19/2023] [Accepted: 11/04/2023] [Indexed: 06/25/2024]
Abstract
Amorphophallus muelleri BI was included in the Araceae family, which is a type of tuber. It is a tuber with high potential due to its abundant bioactive compounds. Amorphophallus muelleri BI flour (AF) contains a high glucomannan and carbon compounds that serve as nutrients for probiotic bacteria. Although Amorphophallus muelleri BI thrives in Indonesia, its utilization rate in the country remains relatively low and haven't been any studies conducted regarding synbiotic powder from AF. The primary objective of this research is to develop a synergistic beverage enriched with varying concentrations of Amorphophallus muelleri BI as a prebiotic and LA as probiotic (synbiotic). The process starts with culture preparation, synbiotic drink process, synbiotic and microencapsulation, includes the examination of solubility, proximate analysis, calorie content, viability, and shelf life. Results showed that the proximate and solubility had no significant effect. Synbiotic drink powder from AF can be produced using spray dry technology. The highest LA growth was observed when augmenting the AF quantity at a 0.4% concentration, which can be seen from the viability parameter with a value of 7.29 log CFU/g. Samples shelf life at -21 and 3 °C with LA viability critical parameter was determined to be 4 days.
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Affiliation(s)
- Lulu Eki Daysita
- Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia
| | - Hasna Rahma Aulia
- Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia
| | - Molina Indah Pradiva
- Research Center for Agroindustry, National Research and Innovation Agency, Bogor, Indonesia
| | - Dewi Nandyawati
- Research Center for Agroindustry, National Research and Innovation Agency, Bogor, Indonesia
| | - Fatim Illaningtyas
- Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia
| | - Amanda Dwi Gebrina
- Research Center for Agroindustry, National Research and Innovation Agency, Bogor, Indonesia
| | - Wike Zahra Mustafawi
- Research Center for Genetic Engineering, National Research and Innovation Agency, Bogor, Indonesia
| | - Kristin Benigna
- Department of Food Science and Technology, Faculty of Agricultural Technology, IPB University, 16680 Bogor, Indonesia
| | - Lilis Nuraida
- Department of Food Science and Technology, Faculty of Agricultural Technology, IPB University, 16680 Bogor, Indonesia
| | - Nur Wulandari
- Department of Food Science and Technology, Faculty of Agricultural Technology, IPB University, 16680 Bogor, Indonesia
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3
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Lyu W, Li DF, Li SY, Hu H, Zhou JY, Wang L. Gut microbiota modulation: a narrative review on a novel strategy for prevention and alleviation of ovarian aging. Crit Rev Food Sci Nutr 2024:1-13. [PMID: 38835159 DOI: 10.1080/10408398.2024.2361306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
The global rise in life expectancy corresponds with a delay in childbearing age among women. Ovaries, seen as the chronometers of female physiological aging, demonstrate features of sped up aging, evidenced by the steady decline in both the quality and quantity of ovarian follicles from birth. The multifaceted pathogenesis of ovarian aging has kindled intensive research interest from the biomedical and pharmaceutical sectors. Novel studies underscore the integral roles of gut microbiota in follicular development, lipid metabolism, and hormonal regulation, forging a nexus with ovarian aging. In this review, we outline the role of gut microbiota in ovarian function (follicular development, oocyte maturation, and ovulation), compile and present gut microbiota alterations associated with age-related ovarian aging. We also discuss potential strategies for alleviating ovarian aging from the perspective of gut microbiota, such as fecal microbiota transplantation and probiotics.
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Affiliation(s)
- Wei Lyu
- Clinical Medical Research Center, The Second Affiliated Hospital of Army Military Medical University, Chongqing, China
- Department of Pharmaceutical Chemistry, University of California-San Francisco, San Francisco, California, USA
| | - De-Feng Li
- Clinical Medical Research Center, The Second Affiliated Hospital of Army Military Medical University, Chongqing, China
| | - Shu-Ying Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Army Military Medical University, Chongqing, China
| | - Hua Hu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Army Military Medical University, Chongqing, China
| | - Jian-Yun Zhou
- Clinical Medical Research Center, The Second Affiliated Hospital of Army Military Medical University, Chongqing, China
| | - Ling Wang
- Clinical Medical Research Center, The Second Affiliated Hospital of Army Military Medical University, Chongqing, China
- Department of Pharmaceutical Chemistry, University of California-San Francisco, San Francisco, California, USA
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4
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Nguyen NTA, Jiang Y, McQuade JL. Eating away cancer: the potential of diet and the microbiome for shaping immunotherapy outcome. Front Immunol 2024; 15:1409414. [PMID: 38873602 PMCID: PMC11169628 DOI: 10.3389/fimmu.2024.1409414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Accepted: 05/14/2024] [Indexed: 06/15/2024] Open
Abstract
The gut microbiome (GMB) plays a substantial role in human health and disease. From affecting gut barrier integrity to promoting immune cell differentiation, the GMB is capable of shaping host immunity and thus oncogenesis and anti-cancer therapeutic response, particularly with immunotherapy. Dietary patterns and components are key determinants of GMB composition, supporting the investigation of the diet-microbiome-immunity axis as a potential avenue to enhance immunotherapy response in cancer patients. As such, this review will discuss the role of the GMB and diet on anti-cancer immunity. We demonstrate that diet affects anti-cancer immunity through both GMB-independent and GMB-mediated mechanisms, and that different diet patterns mold the GMB's functional and taxonomic composition in distinctive ways. Dietary modulation therefore shows promise as an intervention for improving cancer outcome; however, further and more extensive research in human cancer populations is needed.
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Affiliation(s)
| | | | - Jennifer L. McQuade
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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5
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Mecca M, Picerno S, Cortellino S. The Killer's Web: Interconnection between Inflammation, Epigenetics and Nutrition in Cancer. Int J Mol Sci 2024; 25:2750. [PMID: 38473997 DOI: 10.3390/ijms25052750] [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: 12/20/2023] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Inflammation is a key contributor to both the initiation and progression of tumors, and it can be triggered by genetic instability within tumors, as well as by lifestyle and dietary factors. The inflammatory response plays a critical role in the genetic and epigenetic reprogramming of tumor cells, as well as in the cells that comprise the tumor microenvironment. Cells in the microenvironment acquire a phenotype that promotes immune evasion, progression, and metastasis. We will review the mechanisms and pathways involved in the interaction between tumors, inflammation, and nutrition, the limitations of current therapies, and discuss potential future therapeutic approaches.
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Affiliation(s)
- Marisabel Mecca
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, PZ, Italy
| | - Simona Picerno
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), 85028 Rionero in Vulture, PZ, Italy
| | - Salvatore Cortellino
- Laboratory of Preclinical and Translational Research, Responsible Research Hospital, 86100 Campobasso, CB, Italy
- Scuola Superiore Meridionale (SSM), Clinical and Translational Oncology, 80138 Naples, NA, Italy
- S.H.R.O. Italia Foundation ETS, 10060 Candiolo, TO, Italy
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6
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Huang F, Cao Y, Liang J, Tang R, Wu S, Zhang P, Chen R. The influence of the gut microbiome on ovarian aging. Gut Microbes 2024; 16:2295394. [PMID: 38170622 PMCID: PMC10766396 DOI: 10.1080/19490976.2023.2295394] [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: 07/04/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024] Open
Abstract
Ovarian aging occurs prior to the aging of other organ systems and acts as the pacemaker of the aging process of multiple organs. As life expectancy has increased, preventing ovarian aging has become an essential goal for promoting extended reproductive function and improving bone and genitourinary conditions related to ovarian aging in women. An improved understanding of ovarian aging may ultimately provide tools for the prediction and mitigation of this process. Recent studies have suggested a connection between ovarian aging and the gut microbiota, and alterations in the composition and functional profile of the gut microbiota have profound consequences on ovarian function. The interaction between the gut microbiota and the ovaries is bidirectional. In this review, we examine current knowledge on ovary-gut microbiota crosstalk and further discuss the potential role of gut microbiota in anti-aging interventions. Microbiota-based manipulation is an appealing approach that may offer new therapeutic strategies to delay or reverse ovarian aging.
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Affiliation(s)
- Feiling Huang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| | - Ying Cao
- School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Jinghui Liang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| | - Ruiyi Tang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| | - Si Wu
- School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Peng Zhang
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute; MOE Key Laboratory of Major Diseases in Children; Rare Disease Center, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Rong Chen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
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7
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Weinzierl A, Coerper M, Harder Y, Menger MD, Laschke MW. Caloric Restriction: A Novel Conditioning Strategy to Improve the Survival of Ischemically Challenged Musculocutaneous Random Pattern Flaps. Nutrients 2023; 15:4076. [PMID: 37764859 PMCID: PMC10536342 DOI: 10.3390/nu15184076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023] Open
Abstract
Caloric restriction (CR) is a cost-effective and easy-to-perform approach to counteracting surgical stress. The present study therefore evaluates the tissue-protective effects of a 30% CR in musculocutaneous flaps undergoing ischemia. For this purpose, a well-established murine dorsal skinfold chamber model, in combination with random pattern musculocutaneous flaps, was used. C57BL/6N mice were divided at random into a CR group (n = 8) and a control group with unrestricted access to standard chow (n = 8). The CR animals were subjected to a 30% reduction in caloric intake for 10 days before flap elevation. Intravital fluorescence microscopy was carried out on days 1, 3, 5, 7 and 10 after flap elevation to assess the nutritive blood perfusion, angiogenesis and flap necrosis. Subsequently, the flap tissue was harvested for additional histological and immunohistochemical analyses. The CR-treated animals exhibited a significantly higher functional capillary density and more newly formed microvessels within the flap tissue when compared to the controls; this was associated with a significantly higher flap survival rate. Immunohistochemical analyses showed a decreased invasion of myeloperoxidase-positive neutrophilic granulocytes into the flap tissue of the CR-treated mice. Moreover, the detection of cleaved caspase-3 revealed fewer cells undergoing apoptosis in the transition zone between the vital and necrotic tissue in the flaps of the CR-treated mice. These results demonstrate that a CR of 30% effectively prevents flap necrosis by maintaining microperfusion on a capillary level and inhibiting inflammation under ischemic stress. Hence, CR represents a promising novel conditioning strategy for improving the survival of musculocutaneous flaps with random pattern perfusion.
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Affiliation(s)
- Andrea Weinzierl
- Institute for Clinical and Experimental Surgery, Saarland University, 66421 Homburg, Germany
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Maximilian Coerper
- Institute for Clinical and Experimental Surgery, Saarland University, 66421 Homburg, Germany
| | - Yves Harder
- Department of Plastic, Reconstructive and Aesthetic Surgery, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale (EOC), 6900 Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, 6900 Lugano, Switzerland
| | - Michael D. Menger
- Institute for Clinical and Experimental Surgery, Saarland University, 66421 Homburg, Germany
| | - Matthias W. Laschke
- Institute for Clinical and Experimental Surgery, Saarland University, 66421 Homburg, Germany
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8
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Fan X, Lu Y, Zhao Y, Miao H, Qi K, Wang R. An Insight into the Exploration of Antibiotic Resistance Genes in Calorie Restricted Diet Fed Mice. Nutrients 2023; 15:3198. [PMID: 37513616 PMCID: PMC10384538 DOI: 10.3390/nu15143198] [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: 06/15/2023] [Revised: 07/15/2023] [Accepted: 07/16/2023] [Indexed: 07/30/2023] Open
Abstract
Antibiotic resistance genes (ARGs) threaten the success of modern drugs against multidrug resistant infections. ARGs can be transferred to opportunistic pathogens by horizontal gene transfer (HGT). Many studies have investigated the characteristics of ARGs in various chemical stressors. Studies on the effects of dietary nutrition and dietary patterns on ARGs are rare. The study first demonstrated the effect of calorie restricted (CR) diet on the ARGs and mobile genetic elements (MGEs) in mouse feces and explored their relationship with gut microbiota and their functions. The results showed that the abundance of the total ARGs in mouse feces of the CR group increased, especially tetracycline ARGs (tetW-01). The abundance of the MLSB ARGs (ermB) decreased evidently in mouse feces of the CR group. In addition, the total abundance of MGEs decreased evidently in the CR group, especially tnpA-03. In the meantime, the abundance of Lactobacillus and Bifidobacterium in mouse feces of the CR group increased remarkably. The Spearman correlation analysis between gut microbiota and ARGs showed that several probiotics were significantly positively correlated with ARGs (tetW-01), which might be the main contribution to the increase in ARGs of the CR group.
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Affiliation(s)
- Xiuqin Fan
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yuanyuan Lu
- Department of Children's Health Care Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yunfeng Zhao
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Sciences Research Unit (2019RU014), China National Center for Food Safety Risk Assessment, Beijing 100021, China
| | - Hongjian Miao
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Sciences Research Unit (2019RU014), China National Center for Food Safety Risk Assessment, Beijing 100021, China
| | - Kemin Qi
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Rui Wang
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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9
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Blachier F. Amino Acid-Derived Bacterial Metabolites in the Colorectal Luminal Fluid: Effects on Microbial Communication, Metabolism, Physiology, and Growth. Microorganisms 2023; 11:1317. [PMID: 37317289 DOI: 10.3390/microorganisms11051317] [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: 04/06/2023] [Revised: 05/14/2023] [Accepted: 05/15/2023] [Indexed: 06/16/2023] Open
Abstract
Undigested dietary and endogenous proteins, as well as unabsorbed amino acids, can move from the terminal part of the ileum into the large intestine, where they meet a dense microbial population. Exfoliated cells and mucus released from the large intestine epithelium also supply nitrogenous material to this microbial population. The bacteria in the large intestine luminal fluid release amino acids from the available proteins, and amino acids are then used for bacterial protein synthesis, energy production, and in other various catabolic pathways. The resulting metabolic intermediaries and end products can then accumulate in the colorectal fluid, and their concentrations appear to depend on different parameters, including microbiota composition and metabolic activity, substrate availability, and the capacity of absorptive colonocytes to absorb these metabolites. The aim of the present review is to present how amino acid-derived bacterial metabolites can affect microbial communication between both commensal and pathogenic microorganisms, as well as their metabolism, physiology, and growth.
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Affiliation(s)
- François Blachier
- Université Paris-Saclay, AgroParisTech, INRAe, UMR PNCA, 91120 Palaiseau, France
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10
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Wang M, Shen Y, Tan Z, Yasen A, Fan B, Shen X. Metabolomics analysis of dietary restriction results in a longer lifespan due to alters of amino acid levels in larval hemolymph of Bombyx mori. Sci Rep 2023; 13:6828. [PMID: 37100857 PMCID: PMC10133320 DOI: 10.1038/s41598-023-34132-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/25/2023] [Indexed: 04/28/2023] Open
Abstract
Dietary restriction (DR) has been a very important discovery in modern aging biology research. Its remarkable anti-aging effect has been proved in a variety of organisms, including members of Lepidoptera, but mechanisms by which DR increases longevity are not fully understood. By using the silkworm (Bombyx mori), a model of lepidopteran insect, we established a DR model, isolated hemolymph from fifth instar larvae and employed LC-MS/MS metabolomics to analyze the effect of DR on the endogenous metabolites of silkworm, and tried to clarify the mechanism of DR to prolong lifespan. We identified the potential biomarkers by analyzing the metabolites of the DR and control groups. Then, we constructed relevant metabolic pathways and networks with MetaboAnalyst. DR significantly prolonged the lifespan of silkworm. The differential metabolites between the DR and control groups were mainly organic acids (including amino acid), and amines. These metabolites are involved in metabolic pathways such as amino acid metabolism. Further analysis showed that, the levels of 17 amino acids were significantly changed in the DR group, indicating that the prolonged lifespan was mainly due to changes in amino acid metabolism. Furthermore, we identified 41 and 28 unique differential metabolites in males and females, respectively, demonstrating sex differences in biological responses to DR. The DR group showed higher antioxidant capacity and lower lipid peroxidation and inflammatory precursors, with differences between the sexes. These results provide evidence for various DR anti-aging mechanisms at the metabolic level and novel reference for the future development of DR-simulating drugs or foods.
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Affiliation(s)
- Meixian Wang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212100, Jiangsu, China
| | - Yichen Shen
- Department of Plastic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, Zhejiang, China
| | - Zhicheng Tan
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China
| | - Ayinuer Yasen
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212100, Jiangsu, China
| | - Bingyan Fan
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212100, Jiangsu, China
| | - Xingjia Shen
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China.
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212100, Jiangsu, China.
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11
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Intermittent fasting supports the balance of the gut microbiota composition. INTERNATIONAL MICROBIOLOGY : THE OFFICIAL JOURNAL OF THE SPANISH SOCIETY FOR MICROBIOLOGY 2023; 26:51-57. [PMID: 35953616 DOI: 10.1007/s10123-022-00272-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 01/06/2023]
Abstract
There is a growing body of detailed research demonstrating that intermittent fasting is essentially a cleansing activity in terms of health. Especially since its applications that exceed 16 h trigger autophagy, it continues its effect on all tissue and organ systems after the regeneration movement that starts at the cellular level. Similarly, it continues to be better understood with each passing day that the gut microbiota (GM) has many positive effects on all tissue and organ systems. Although the GM is affected by many different parameters, dietary habits are reported to be the most effective factor. Therefore, it is important to investigate the effects of different preferred fasting practices on the GM, which has numerous health benefits. Pointing out this situation, this study aims to determine the effects of 18-h intermittent fasting for 5 weeks on the shaping of GM. A 12-month-old male Wistar rat was chosen as the model organism in the study. At the end of the application, the metagenome was applied to the cecum content of the intestinal tissue collected from the sacrificed animals. Intermittent fasting practice led to an increase in alpha diversity, which expresses a significant bacterial diversity, the stabilization of Firmicutes and Bacteroidetes ratios (F/B), and the reshaping of the values with the highest prevalence in all stages of the classification, especially in the family, genus, and species care. Analysis results showed that the preferred intermittent fasting program helps balance the GM composition. This study is an important example showing the strong positive link between intermittent fasting and GM.
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12
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Kong CY, Li ZM, Chen HL, Mao YQ, Han B, Guo JJ, Wang LS. An Energy-Restricted Diet Including Yogurt, Fruit, and Vegetables Alleviates High-Fat Diet-Induced Metabolic Syndrome in Mice by Modulating the Gut Microbiota. J Nutr 2022; 152:2429-2440. [PMID: 36774109 DOI: 10.1093/jn/nxac181] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/02/2022] [Accepted: 08/12/2022] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The importance of the composition of an energy-restricted diet in the treatment of metabolic syndrome (MetS) is unknown. OBJECTIVES In this study we aimed to investigate the benefits of a novel dietary treatment (50% calorie restriction diet composed of yogurt, fruit, and vegetables [CR-YD]) in mice with MetS. METHODS Forty 7-wk-old male C57BL/6 J mice were randomly assigned to 4 groups (n = 10/group) that were fed for 14 wk ad libitum with a normal diet (ND; 10%:70%:20% energy from fat: carbohydrate: protein) or for 12 wk with a high-fat diet (HFD; 60:20:20) or the HFD followed by 2 wk of feeding with a 50% calorie-restricted HFD (CR-HFD) or YD (CR-YD, 21.2%:65.4%:13.4% energy). Body weight, fat deposition, hepatic steatosis, serum concentrations of inflammatory biomarkers, and glucose homeostasis were assessed. Fecal microbiota transplantation (FMT) was used to validate the roles of gut microbiota in MetS. RESULTS The HFD group had 50% greater body weight and 475% greater fat deposition than the ND group (P < 0.05). Compared with the HFD group, the CR-HFD and CR-YD groups had 22% and 31% lower body weight and 49% and 75% less fat deposition, respectively (P < 0.05). Compared with the CR-HFD group, the CR-YD group had 11% lower body weight, 96% less fat deposition, 500% less hepatic steatosis, 75% lower glucose, and 450% more hepatic Akkermansia bacteria (P < 0.05). The CR-YD group also had 50% lower histopathology scores and 1.35-fold higher levels of Claudin4 than the CR-HFD group (P < 0.05). The HFD + CR-YD fecal group had 10.6% lower body weight, 119% lower steatosis, and 17.9% lower glucose (P < 0.05) than the HFD + CR-HFD fecal group. CONCLUSIONS Compared with CR alone, the CR-YD diet has a better therapeutic effect in mice with HFD-induced MetS.
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Affiliation(s)
- Chao-Yue Kong
- Center for Traditional Chinese Medicine and Gut Microbiota, Minhang Hospital, Fudan University, Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Zhan-Ming Li
- Center for Traditional Chinese Medicine and Gut Microbiota, Minhang Hospital, Fudan University, Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Hui-Ling Chen
- Center for Traditional Chinese Medicine and Gut Microbiota, Minhang Hospital, Fudan University, Shanghai, China
| | - Yu-Qin Mao
- Center for Traditional Chinese Medicine and Gut Microbiota, Minhang Hospital, Fudan University, Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Bing Han
- Center for Traditional Chinese Medicine and Gut Microbiota, Minhang Hospital, Fudan University, Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Jian-Jun Guo
- Sports and Medicine Integration Center, Capital University of Physical Education and Sports, Beijing, China.
| | - Li-Shun Wang
- Center for Traditional Chinese Medicine and Gut Microbiota, Minhang Hospital, Fudan University, Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China.
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13
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Anderson EM, Rozowsky JM, Fazzone BJ, Schmidt EA, Stevens BR, O’Malley KA, Scali ST, Berceli SA. Temporal Dynamics of the Intestinal Microbiome Following Short-Term Dietary Restriction. Nutrients 2022; 14:2785. [PMID: 35889742 PMCID: PMC9318361 DOI: 10.3390/nu14142785] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 06/28/2022] [Accepted: 07/02/2022] [Indexed: 12/04/2022] Open
Abstract
Short-term dietary restriction has been proposed as an intriguing pre-operative conditioning strategy designed to attenuate the surgical stress response and improve outcomes. However, it is unclear how this nutritional intervention influences the microbiome, which is known to modulate the systemic condition. Healthy individuals were recruited to participate in a four-day, 70% protein-restricted, 30% calorie-restricted diet, and stool samples were collected at baseline, after the restricted diet, and after resuming normal food intake. Taxonomy and functional pathway analysis was performed via shotgun metagenomic sequencing, prevalence filtering, and differential abundance analysis. High prevalence species were altered by the dietary intervention but quickly returned to baseline after restarting a regular diet. Composition and functional changes after the restricted diet included the decreased relative abundance of commensal bacteria and a catabolic phenotype. Notable species changes included Faecalibacterium prausnitzii and Roseburia intestinalis, which are major butyrate producers within the colon and are characteristically decreased in many disease states. The macronutrient components of the diet might have influenced these changes. We conclude that short-term dietary restriction modulates the ecology of the gut microbiome, with this modulation being characterized by a relative dysbiosis.
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Affiliation(s)
- Erik M. Anderson
- Department of Surgery, University of Florida College of Medicine, 1600 SW Archer Rd., Gainesville, FL 32610, USA; (E.M.A.); (J.M.R.); (B.J.F.); (E.A.S.); (K.A.O.); (S.T.S.)
- Department of Surgery, Malcolm Randall Veteran Affairs Medical Center, 1601 SW Archer Rd., Gainesville, FL 32610, USA
| | - Jared M. Rozowsky
- Department of Surgery, University of Florida College of Medicine, 1600 SW Archer Rd., Gainesville, FL 32610, USA; (E.M.A.); (J.M.R.); (B.J.F.); (E.A.S.); (K.A.O.); (S.T.S.)
- Department of Surgery, Malcolm Randall Veteran Affairs Medical Center, 1601 SW Archer Rd., Gainesville, FL 32610, USA
| | - Brian J. Fazzone
- Department of Surgery, University of Florida College of Medicine, 1600 SW Archer Rd., Gainesville, FL 32610, USA; (E.M.A.); (J.M.R.); (B.J.F.); (E.A.S.); (K.A.O.); (S.T.S.)
- Department of Surgery, Malcolm Randall Veteran Affairs Medical Center, 1601 SW Archer Rd., Gainesville, FL 32610, USA
| | - Emilie A. Schmidt
- Department of Surgery, University of Florida College of Medicine, 1600 SW Archer Rd., Gainesville, FL 32610, USA; (E.M.A.); (J.M.R.); (B.J.F.); (E.A.S.); (K.A.O.); (S.T.S.)
- Department of Surgery, Malcolm Randall Veteran Affairs Medical Center, 1601 SW Archer Rd., Gainesville, FL 32610, USA
| | - Bruce R. Stevens
- Department of Physiology and Functional Genomics, University of Florida College of Medicine, 1600 SW Archer Rd., Gainesville, FL 32610, USA;
| | - Kerri A. O’Malley
- Department of Surgery, University of Florida College of Medicine, 1600 SW Archer Rd., Gainesville, FL 32610, USA; (E.M.A.); (J.M.R.); (B.J.F.); (E.A.S.); (K.A.O.); (S.T.S.)
- Department of Surgery, Malcolm Randall Veteran Affairs Medical Center, 1601 SW Archer Rd., Gainesville, FL 32610, USA
| | - Salvatore T. Scali
- Department of Surgery, University of Florida College of Medicine, 1600 SW Archer Rd., Gainesville, FL 32610, USA; (E.M.A.); (J.M.R.); (B.J.F.); (E.A.S.); (K.A.O.); (S.T.S.)
- Department of Surgery, Malcolm Randall Veteran Affairs Medical Center, 1601 SW Archer Rd., Gainesville, FL 32610, USA
| | - Scott A. Berceli
- Department of Surgery, University of Florida College of Medicine, 1600 SW Archer Rd., Gainesville, FL 32610, USA; (E.M.A.); (J.M.R.); (B.J.F.); (E.A.S.); (K.A.O.); (S.T.S.)
- Department of Surgery, Malcolm Randall Veteran Affairs Medical Center, 1601 SW Archer Rd., Gainesville, FL 32610, USA
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14
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Dakic T, Jevdjovic T, Vujovic P, Mladenovic A. The Less We Eat, the Longer We Live: Can Caloric Restriction Help Us Become Centenarians? Int J Mol Sci 2022; 23:ijms23126546. [PMID: 35742989 PMCID: PMC9223351 DOI: 10.3390/ijms23126546] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 02/04/2023] Open
Abstract
Striving for longevity is neither a recent human desire nor a novel scientific field. The first article on this topic was published in 1838, when the average human life expectancy was approximately 40 years. Although nowadays people on average live almost as twice as long, we still (and perhaps more than ever) look for new ways to extend our lifespan. During this seemingly endless journey of discovering efficient methods to prolong life, humans were enthusiastic regarding several approaches, one of which is caloric restriction (CR). Where does CR, initially considered universally beneficial for extending both lifespan and health span, stand today? Does a lifelong decrease in food consumption represent one of the secrets of centenarians’ long and healthy life? Do we still believe that if we eat less, we will live longer? This review aims to summarize the current literature on CR as a potential life-prolonging intervention in humans and discusses metabolic pathways that underlie this effect.
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Affiliation(s)
- Tamara Dakic
- Department for Comparative Physiology and Ecophysiology, Institute for Physiology and Biochemistry “Ivan Djaja”, Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia; (T.D.); (T.J.); (P.V.)
| | - Tanja Jevdjovic
- Department for Comparative Physiology and Ecophysiology, Institute for Physiology and Biochemistry “Ivan Djaja”, Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia; (T.D.); (T.J.); (P.V.)
| | - Predrag Vujovic
- Department for Comparative Physiology and Ecophysiology, Institute for Physiology and Biochemistry “Ivan Djaja”, Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia; (T.D.); (T.J.); (P.V.)
| | - Aleksandra Mladenovic
- Department of Neurobiology, Institute for Biological Research “Sinisa Stankovic”—National Institute of Republic of Serbia, University of Belgrade, Bul.D. Stefana 142, 11000 Belgrade, Serbia
- Correspondence:
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15
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Gut microbiota-bile acid crosstalk contributes to the rebound weight gain after calorie restriction in mice. Nat Commun 2022; 13:2060. [PMID: 35440584 PMCID: PMC9018700 DOI: 10.1038/s41467-022-29589-7] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 03/24/2022] [Indexed: 12/13/2022] Open
Abstract
Calorie restriction (CR) and fasting are common approaches to weight reduction, but the maintenance is difficult after resuming food consumption. Meanwhile, the gut microbiome associated with energy harvest alters dramatically in response to nutrient deprivation. Here, we reported that CR and high-fat diet (HFD) both remodeled the gut microbiota with similar microbial composition, Parabacteroides distasonis was most significantly decreased after CR or HFD. CR altered microbiota and reprogramed metabolism, resulting in a distinct serum bile acid profile characterized by depleting the proportion of non-12α-hydroxylated bile acids, ursodeoxycholic acid and lithocholic acid. Downregulation of UCP1 expression in brown adipose tissue and decreased serum GLP-1 were observed in the weight-rebound mice. Moreover, treatment with Parabacteroides distasonis or non-12α-hydroxylated bile acids ameliorated weight regain via increased thermogenesis. Our results highlighted the gut microbiota-bile acid crosstalk in rebound weight gain and Parabacteroides distasonis as a potential probiotic to prevent rapid post-CR weight gain. Caloric restriction is a common approach to weight reduction, however, weight regain is common. Here the authors report that caloric restriction reduces the abundance of Parabacteroides distasonis in the gut and alters serum bile acid (BA) profile, which contribute to weight regain in mice.
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16
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Cantoni C, Dorsett Y, Fontana L, Zhou Y, Piccio L. Effects of dietary restriction on gut microbiota and CNS autoimmunity. Clin Immunol 2022; 235:108575. [PMID: 32822833 PMCID: PMC7889763 DOI: 10.1016/j.clim.2020.108575] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 05/12/2020] [Accepted: 08/14/2020] [Indexed: 02/03/2023]
Abstract
Multiple sclerosis (MS) is the most common central nervous system (CNS) autoimmune disease. It is due to the interplay of genetic and environmental factors. Current opinion is that diet could play a pathogenic role in disease onset and development. Dietary restriction (DR) without malnutrition markedly improves health and increases lifespan in multiple model organisms. DR regimens that utilize continuous or intermittent food restriction can induce anti-inflammatory, immuno-modulatory and neuroendocrine adaptations promoting health. These adaptations exert neuroprotective effects in the main MS animal model, experimental autoimmune encephalomyelitis (EAE). This review summarizes the current knowledge on DR-induced changes in gut microbial composition and metabolite production and its impact on underlying functional mechanisms. Studies demonstrating the protective effects of DR regimens on EAE and people with MS are also presented. This is a rapidly developing research field with important clinical implications for personalized dietary interventions in MS prevention and treatment.
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Affiliation(s)
- Claudia Cantoni
- Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Yair Dorsett
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06032, USA
| | - Luigi Fontana
- Charles Perkins Center, Faculty of Medicine and Health, University of Sydney, NSW 2006, Australia,Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, NSW 2006, Australia,Department of Clinical and Experimental Sciences, Brescia University School of Medicine, Brescia, Italy
| | - Yanjiao Zhou
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06032, USA
| | - Laura Piccio
- Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA.,Brain and Mind Centre, University of Sydney, Sydney, NSW 2050, Australia.,Corresponding author: Laura Piccio, MD PhD, 1) Brain and Mind Centre, University of Sydney, 94 Mallett St Camperdown, NSW, 2050, Australia, , 2) Washington University School of Medicine, Dept. of Neurology, Campus Box 8111; 660 S. Euclid Avenue, St. Louis, MO 63110; USA, Phone: (314) 747-4591; Fax: (314) 747-1345;
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17
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Gregor A, Pignitter M, Trajanoski S, Auernigg-Haselmaier S, Somoza V, König J, Duszka K. Microbial contribution to the caloric restriction-triggered regulation of the intestinal levels of glutathione transferases, taurine, and bile acid. Gut Microbes 2022; 13:1992236. [PMID: 34693866 PMCID: PMC8547879 DOI: 10.1080/19490976.2021.1992236] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Recently we showed that caloric restriction (CR) triggers an increase in the levels of free taurine, taurine-conjugated bile acids (BA), and other taurine conjugates in intestinal mucosa while decreasing glutathione (GSH) levels in wild-type male mice. In the current project, we decided to investigate whether the microbiota is involved in the response to CR by depleting gut bacteria. The antibiotics treatment diminished CR-specific increase in the levels of free taurine and its conjugates as well as upregulated expression and activity of GSH transferases (GST) in the intestinal mucosa. Further, it diminished a CR-related increase in BAs levels in the liver, plasma, and intestinal mucosa. Transplant of microbiota from CR mice to ad libitum fed mice triggered CR-like changes in MGST1 expression, levels of taurine and taurine conjugates in the mucosa of the ileum. We show for the first time, that microbiota contributes to the intestinal response to CR-triggered changes in BA, taurine, and GST levels.
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Affiliation(s)
- András Gregor
- Department of Nutritional Sciences, University of Vienna, Vienna, Austria
| | - Marc Pignitter
- Department of Physiological Chemistry, University of Vienna, Vienna, Austria
| | - Slave Trajanoski
- Core Facility Computational Bioanalytics, Medical University of Graz, Graz, Austria
| | | | - Veronika Somoza
- Department of Physiological Chemistry, University of Vienna, Vienna, Austria,Leibniz-Institut for Food Systems Biology, Technical University of Munich, Munich, Germany
| | - Jürgen König
- Department of Nutritional Sciences, University of Vienna, Vienna, Austria
| | - Kalina Duszka
- Department of Nutritional Sciences, University of Vienna, Vienna, Austria,CONTACT Kalina Duszka Department of Nutritional Sciences, University of Vienna, Vienna, Austria
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18
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Seyfried F, Phetcharaburanin J, Glymenaki M, Nordbeck A, Hankir M, Nicholson JK, Holmes E, Marchesi JR, Li JV. Roux-en-Y gastric bypass surgery in Zucker rats induces bacterial and systemic metabolic changes independent of caloric restriction-induced weight loss. Gut Microbes 2022; 13:1-20. [PMID: 33535876 PMCID: PMC7872092 DOI: 10.1080/19490976.2021.1875108] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Mechanisms of Roux-en-Y gastric bypass (RYGB) surgery are not fully understood. This study aimed to investigate weight loss-independent bacterial and metabolic changes, as well as the absorption of bacterial metabolites and bile acids through the hepatic portal system following RYGB surgery. Three groups of obese Zucker (fa/fa) rats were included: RYGB (n = 11), sham surgery and body weight matched with RYGB (Sham-BWM, n = 5), and sham surgery fed ad libitum (Sham-obese, n = 5). Urine and feces were collected at multiple time points, with portal vein and peripheral blood obtained at the end of the study. Metabolic phenotyping approaches and 16S rRNA gene sequencing were used to determine the biochemical and bacterial composition of the samples, respectively. RYGB surgery-induced distinct metabolic and bacterial disturbances, which were independent of weight loss through caloric restriction. RYGB resulted in lower absorption of phenylalanine and choline, and higher urinary concentrations of host-bacterial co-metabolites (e.g., phenylacetylglycine, indoxyl sulfate), together with higher fecal trimethylamine, suggesting enhanced bacterial aromatic amino acid and choline metabolism. Short chain fatty acids (SCFAs) were lower in feces and portal vein blood from RYGB group compared to Sham-BWM, accompanied with lower abundances of Lactobacillaceae, and Ruminococcaceae known to contain SCFA producers, indicating reduced bacterial fiber fermentation. Fecal γ-amino butyric acid (GABA) was found in higher concentrations in RYGB than that in Sham groups and could play a role in the metabolic benefits associated with RYGB surgery. While no significant difference in urinary BA excretion, RYGB lowered both portal vein and circulating BA compared to Sham groups. These findings provide a valuable resource for how dynamic, multi-systems changes impact on overall metabolic health, and may provide potential therapeutic targets for developing downstream non-surgical treatment for metabolic disease.
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Affiliation(s)
- Florian Seyfried
- Department of General, Visceral, Transplant, Vascular, and Pediatric Surgery, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Jutarop Phetcharaburanin
- Department of Metabolism Digestion and Reproduction, Faculty of Medicine, Imperial College LondonLondon, UK,Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Maria Glymenaki
- Department of Metabolism Digestion and Reproduction, Faculty of Medicine, Imperial College LondonLondon, UK
| | - Arno Nordbeck
- Department of General, Visceral, Transplant, Vascular, and Pediatric Surgery, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Mohammed Hankir
- Department of General, Visceral, Transplant, Vascular, and Pediatric Surgery, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Jeremy K Nicholson
- Division of Organisms and Environment, School of Biosciences, Institute of Health Futures, Murdoch University, Perth, Western Australia, Australia
| | - Elaine Holmes
- Department of Metabolism Digestion and Reproduction, Faculty of Medicine, Imperial College LondonLondon, UK,Division of Organisms and Environment, School of Biosciences, Institute of Health Futures, Murdoch University, Perth, Western Australia, Australia
| | - Julian R. Marchesi
- Department of Metabolism Digestion and Reproduction, Faculty of Medicine, Imperial College LondonLondon, UK,School of Biosciences, Cardiff University, Cardiff, UK
| | - Jia V. Li
- Department of Metabolism Digestion and Reproduction, Faculty of Medicine, Imperial College LondonLondon, UK,CONTACT Jia V. Li Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
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19
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Hofer SJ, Carmona‐Gutierrez D, Mueller MI, Madeo F. The ups and downs of caloric restriction and fasting: from molecular effects to clinical application. EMBO Mol Med 2022; 14:e14418. [PMID: 34779138 PMCID: PMC8749464 DOI: 10.15252/emmm.202114418] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 10/05/2021] [Accepted: 10/08/2021] [Indexed: 12/15/2022] Open
Abstract
Age-associated diseases are rising to pandemic proportions, exposing the need for efficient and low-cost methods to tackle these maladies at symptomatic, behavioral, metabolic, and physiological levels. While nutrition and health are closely intertwined, our limited understanding of how diet precisely influences disease often precludes the medical use of specific dietary interventions. Caloric restriction (CR) has approached clinical application as a powerful, yet simple, dietary modulation that extends both life- and healthspan in model organisms and ameliorates various diseases. However, due to psychological and social-behavioral limitations, CR may be challenging to implement into real life. Thus, CR-mimicking interventions have been developed, including intermittent fasting, time-restricted eating, and macronutrient modulation. Nonetheless, possible side effects of CR and alternatives thereof must be carefully considered. We summarize key concepts and differences in these dietary interventions in humans, discuss their molecular effects, and shed light on advantages and disadvantages.
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Affiliation(s)
- Sebastian J Hofer
- Institute of Molecular BiosciencesNAWI GrazUniversity of GrazGrazAustria
- BioHealth GrazGrazAustria
- BioTechMed GrazGrazAustria
| | | | - Melanie I Mueller
- Institute of Molecular BiosciencesNAWI GrazUniversity of GrazGrazAustria
| | - Frank Madeo
- Institute of Molecular BiosciencesNAWI GrazUniversity of GrazGrazAustria
- BioHealth GrazGrazAustria
- BioTechMed GrazGrazAustria
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20
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Pinto FCS, Silva AAM, Souza SL. Repercussions of intermittent fasting on the intestinal microbiota community and body composition: a systematic review. Nutr Rev 2022; 80:613-628. [PMID: 35020929 DOI: 10.1093/nutrit/nuab108] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
CONTEXT Several therapies have been tested for combating weight gain and obesity-related metabolic diseases, and among these therapies, intermittent fasting (IF) has gained a great deal of interest. OBJECTIVE The aim of this study was to provide the reader with a current survey of IF protocols and an understanding of the outcomes found to date in terms of the profile of the intestinal microbiota (IM) in obese organisms. DATA SOURCES Data were obtained from 4 databases: PubMed, SCOPUS, LILACs, and Web of Science. DATA EXTRACTION Data from studies relating IF protocols to the microbiota and weight loss were extracted using a protocol in START program. DATA ANALYSIS Of the 82 original articles identified from the databases, 35 were eliminated due to duplication, and 32 were excluded due to not meeting the inclusion criteria. Two additional articles found in a new search were added, yielding a total of 17 studies to be included in this review. Among the protocols, alternate-day fasting (ADF) and time-restricted feeding (TRF) were the most common, and they were shown to have different mechanisms of metabolic signaling. TRF influences weight control and biochemical parameters by regulating the circadian system, and improving satiety control systems by acting on leptin secretion. On the other hand, ADF leads to a reduction of ±75% of all energy consumption regardless of dietary composition in addition to promoting hormonal adjustments that promote weight control. Furthermore, both protocols showed the ability to remodel the IM by changing the Firmicutes/Bacteroidetes ratio and increasing the abundance of strains such as Lactobacillus spp. and Akkermansia m. that have a protective effect on metabolism against the effects of weight gain. CONCLUSION In short, the ADF and TRF protocols have a positive effect on the remodeling of the IM and can possibly be used to control body adiposity, improve insulin sensitivity, and achieve other obesity-related metabolic changes.
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Affiliation(s)
- Flaydson C S Pinto
- Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | - Amanda A M Silva
- Faculty of Medical Sciences, University of Pernambuco, Recife, Brazil
| | - Sandra L Souza
- Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
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21
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Rendina-Ruedy E, Smith BJ. Common Dietary Modifications in Preclinical Models to Study Skeletal Health. Front Endocrinol (Lausanne) 2022; 13:932343. [PMID: 35909523 PMCID: PMC9329513 DOI: 10.3389/fendo.2022.932343] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 04/29/2022] [Accepted: 05/27/2022] [Indexed: 12/03/2022] Open
Abstract
Bone is a highly dynamic tissue that undergoes continuous remodeling by bone resorbing osteoclasts and bone forming osteoblasts, a process regulated in large part by osteocytes. Dysregulation of these coupled catabolic and anabolic processes as in the case of menopause, type 2 diabetes mellitus, anorexia nervosa, and chronic kidney disease is known to increase fracture risk. Recent advances in the field of bone cell metabolism and bioenergetics have revealed that maintenance of the skeleton places a high energy demand on these cells involved in bone remodeling. These new insights highlight the reason that bone tissue is the beneficiary of a substantial proportion of cardiac output and post-prandial chylomicron remnants and requires a rich supply of nutrients. Studies designed for the specific purpose of investigating the impact of dietary modifications on bone homeostasis or that alter diet composition and food intake to produce the model can be found throughout the literature; however, confounding dietary factors are often overlooked in some of the preclinical models. This review will examine some of the common pre-clinical models used to study skeletal biology and its pathologies and the subsequent impact of various dietary factors on these model systems. Furthermore, the review will include how inadvertent effects of some of these dietary components can influence bone cell function and study outcomes.
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Affiliation(s)
- Elizabeth Rendina-Ruedy
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, United States
- *Correspondence: Elizabeth Rendina-Ruedy,
| | - Brenda J. Smith
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN, United States
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, United States
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22
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Ke S, Mitchell SJ, MacArthur MR, Kane AE, Sinclair DA, Venable EM, Chadaideh KS, Carmody RN, Grodstein F, Mitchell JR, Liu Y. Gut Microbiota Predicts Healthy Late-Life Aging in Male Mice. Nutrients 2021; 13:3290. [PMID: 34579167 PMCID: PMC8467910 DOI: 10.3390/nu13093290] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 12/21/2022] Open
Abstract
Calorie restriction (CR) extends lifespan and retards age-related chronic diseases in most species. There is growing evidence that the gut microbiota has a pivotal role in host health and age-related pathological conditions. Yet, it is still unclear how CR and the gut microbiota are related to healthy aging. Here, we report findings from a small longitudinal study of male C57BL/6 mice maintained on either ad libitum or mild (15%) CR diets from 21 months of age and tracked until natural death. We demonstrate that CR results in a significantly reduced rate of increase in the frailty index (FI), a well-established indicator of aging. We observed significant alterations in diversity, as well as compositional patterns of the mouse gut microbiota during the aging process. Interrogating the FI-related microbial features using machine learning techniques, we show that gut microbial signatures from 21-month-old mice can predict the healthy aging of 30-month-old mice with reasonable accuracy. This study deepens our understanding of the links between CR, gut microbiota, and frailty in the aging process of mice.
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Affiliation(s)
- Shanlin Ke
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA; (S.K.); (F.G.)
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang 330045, China
| | - Sarah J. Mitchell
- Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA;
- Department of Health Sciences and Technology, ETH Zurich, 8005 Zurich, Switzerland;
| | - Michael R. MacArthur
- Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA;
- Department of Health Sciences and Technology, ETH Zurich, 8005 Zurich, Switzerland;
| | - Alice E. Kane
- Paul F. Glenn Center for Biology of Aging Research, Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA; (A.E.K.); (D.A.S.)
| | - David A. Sinclair
- Paul F. Glenn Center for Biology of Aging Research, Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA; (A.E.K.); (D.A.S.)
| | - Emily M. Venable
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA; (E.M.V.); (K.S.C.); (R.N.C.)
| | - Katia S. Chadaideh
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA; (E.M.V.); (K.S.C.); (R.N.C.)
| | - Rachel N. Carmody
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA; (E.M.V.); (K.S.C.); (R.N.C.)
| | - Francine Grodstein
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA; (S.K.); (F.G.)
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - James R. Mitchell
- Department of Health Sciences and Technology, ETH Zurich, 8005 Zurich, Switzerland;
| | - Yangyu Liu
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA; (S.K.); (F.G.)
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Li Y, Dong J, Xiao H, Wang B, Chen Z, Zhang S, Jin Y, Li Y, Fan S, Cui M. Caloric restriction alleviates radiation injuries in a sex-dependent fashion. FASEB J 2021; 35:e21787. [PMID: 34320242 DOI: 10.1096/fj.202100351rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/15/2021] [Accepted: 06/24/2021] [Indexed: 12/14/2022]
Abstract
Safe and effective regimens are still needed given the risk of radiation toxicity from iatrogenic irradiation. The gut microbiota plays an important role in radiation damage. Diet has emerged as a key determinant of the intestinal microbiome signature and function. In this report, we investigated whether a 30% caloric restriction (CR) diet may ameliorate radiation enteritis and hematopoietic toxicity. Experimental mice were either fed ad libitum (AL) or subjected to CR preconditioning for 10 days and then exposed to total body irradiation (TBI) or total abdominal irradiation (TAI). Gross examinations showed that short-term CR pretreatment restored hematogenic organs and improved the intestinal architecture in both male and female mice. Intriguingly, CR preconditioning mitigated radiation-induced systemic and enteric inflammation in female mice, while gut barrier function improved in irradiated males. 16S rRNA high-throughput sequencing showed that the frequency of pro-inflammatory microbes, including Helicobacter and Desulfovibrionaceae, was reduced in female mice after 10 days of CR preconditioning, while an enrichment of short-chain fatty acid (SCFA)-producing bacteria, such as Faecalibaculum, Clostridiales, and Lactobacillus, was observed in males. Using fecal microbiota transplantation (FMT) or antibiotic administration to alter the gut microbiota counteracted the short-term CR-elicited radiation tolerance of both male and female mice, further indicating that the radioprotection of a 30% CR diet depends on altering the gut microbiota. Together, our findings provide new insights into CR in clinical applications and indicate that a short-term CR diet prior to radiation modulates sex-specific gut microbiota configurations, protecting male and female mice against the side effects caused by radiation challenge.
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Affiliation(s)
- Yuan Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Jiali Dong
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Huiwen Xiao
- Department of Microbiology, College of Life Sciences, Nankai University, Tianjin, China
| | - Bin Wang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Zhiyuan Chen
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Shuqin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Yuxiao Jin
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Yiliang Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Saijun Fan
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Ming Cui
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
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Tang L, Li L, Bu L, Guo S, He Y, Liu L, Xing Y, Lou F, Zhang F, Wang S, Lv J, Guo N, Tong J, Xu L, Tang S, Zhu C, Wang Z. Bigu-Style Fasting Affects Metabolic Health by Modulating Taurine, Glucose, and Cholesterol Homeostasis in Healthy Young Adults. J Nutr 2021; 151:2175-2187. [PMID: 33979839 DOI: 10.1093/jn/nxab123] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/20/2021] [Accepted: 04/06/2021] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Dynamic orchestration of metabolic pathways during continuous fasting remains unclear. OBJECTIVE We investigated the physiological effects of Bigu-style fasting and underlying metabolic reprogramming in healthy adults. METHODS We conducted a 5-d Bigu trial in 43 healthy subjects [age 23.2 ± 2.4 y; BMI (in kg/m2) 22.52 ± 1.79]. Physiological indicators and body composition were monitored daily during fasting day 1 (F1D) to F5D and after 10-d refeeding postfasting (R10D) and R30D. Blood samples were collected in the morning. Risk factors associated with inflammation, aging, cardiovascular diseases, malnutrition, and organ dysfunction were evaluated by biochemical measurements. Untargeted plasma metabolomics and gut microbial profiling were performed using plasma and fecal samples. Data were analyzed by repeated measures ANOVA with Greenhouse-Geisser correction. Correlation analyses for metabolite modules and taurine were analyzed by Spearman's rank and Pearson tests, respectively. RESULTS Heart rate was accelerated throughout the fasting period. Risk factors associated with inflammation and cardiovascular diseases were significantly lowered during or after Bigu (P < 0.05). Body composition measurement detected an overconsumption of fat starting from F3D till 1 mo after refeeding. Metabolomics unveiled a coupling between gluconeogenesis and cholesterol biosynthesis beyond F3D. Plasma taurine significantly increased at F3D by 31%-46% followed by a reduction to basal level at F5D (P < 0.001), a pattern inversely correlated with changes in glucose and de novo synthesized cholesterol (r = -0.407 and -0.296, respectively; P < 0.001). Gut microbial profiling showed an enrichment of taurine-utilizing bacteria at F5D, which was completely recovered at R10D. CONCLUSIONS Our data demonstrate that 5-d Bigu is potentially beneficial to health in young adults. A starvation threshold of 3-d fasting is necessary for maintaining glucose and cholesterol homeostasis via a taurine-microbiota regulatory loop. Our findings provide novel insights into the physiological and metabolic responses of the human body to continuous Bigu-style fasting. This trial was registered at http://www.chictr.org.cn as ChiCTR1900022917.
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Affiliation(s)
- Lixu Tang
- School of Martial Arts, Wuhan Sports University, Wuhan, China
| | - Lili Li
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lihong Bu
- PET-CT/MRI Centre, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shaoying Guo
- School of Martial Arts, Wuhan Sports University, Wuhan, China
| | - Yuan He
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Liying Liu
- Department of Physical Education, Hubei University of Education, Wuhan, China
| | - Yangqi Xing
- School of Martial Arts, Wuhan Sports University, Wuhan, China
| | - Fangxiao Lou
- School of Martial Arts, Wuhan Sports University, Wuhan, China
| | - Fengcheng Zhang
- School of Martial Arts, Wuhan Sports University, Wuhan, China
| | - Shun Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jian Lv
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ningning Guo
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jingjing Tong
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Lijuan Xu
- Physical Examination Centre, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shiqi Tang
- Physical Examination Centre, Renmin Hospital of Wuhan University, Wuhan, China
| | - Chengliang Zhu
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhihua Wang
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China.,Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, Shenzhen, Shenzhen, China
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25
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Diabetes Mellitus and Cardiovascular Diseases: Nutraceutical Interventions Related to Caloric Restriction. Int J Mol Sci 2021; 22:ijms22157772. [PMID: 34360538 PMCID: PMC8345941 DOI: 10.3390/ijms22157772] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/15/2021] [Accepted: 07/18/2021] [Indexed: 12/17/2022] Open
Abstract
Type 2 diabetes (T2DM) and cardiovascular disease (CVD) are closely associated and represent a key public health problem worldwide. An excess of adipose tissue, NAFLD, and gut dysbiosis establish a vicious circle that leads to chronic inflammation and oxidative stress. Caloric restriction (CR) is the most promising nutritional approach capable of improving cardiometabolic health. However, adherence to CR represents a barrier to patients and is the primary cause of therapeutic failure. To overcome this problem, many different nutraceutical strategies have been designed. Based on several data that have shown that CR action is mediated by AMPK/SIRT1 activation, several nutraceutical compounds capable of activating AMPK/SIRT1 signaling have been identified. In this review, we summarize recent data on the possible role of berberine, resveratrol, quercetin, and L-carnitine as CR-related nutrients. Additionally, we discuss the limitations related to the use of these nutrients in the management of T2DM and CVD.
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26
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Tan LY, Yeo XY, Bae HG, Lee DPS, Ho RC, Kim JE, Jo DG, Jung S. Association of Gut Microbiome Dysbiosis with Neurodegeneration: Can Gut Microbe-Modifying Diet Prevent or Alleviate the Symptoms of Neurodegenerative Diseases? Life (Basel) 2021; 11:698. [PMID: 34357070 PMCID: PMC8305650 DOI: 10.3390/life11070698] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/09/2021] [Accepted: 07/12/2021] [Indexed: 12/11/2022] Open
Abstract
The central nervous system was classically perceived as anatomically and functionally independent from the other visceral organs. But in recent decades, compelling evidence has led the scientific community to place a greater emphasis on the role of gut microbes on the brain. Pathological observations and early gastrointestinal symptoms highlighted that gut dysbiosis likely precedes the onset of cognitive deficits in Alzheimer's disease (AD) and Parkinson's disease (PD) patients. The delicate balance in the number and functions of pathogenic microbes and alternative probiotic populations is critical in the modulation of systemic inflammation and neuronal health. However, there is limited success in restoring healthy microbial biodiversity in AD and PD patients with general probiotics interventions and fecal microbial therapies. Fortunately, the gut microflora is susceptible to long-term extrinsic influences such as lifestyle and dietary choices, providing opportunities for treatment through comparatively individual-specific control of human behavior. In this review, we examine the impact of restrictive diets on the gut microbiome populations associated with AD and PD. The overall evidence presented supports that gut dysbiosis is a plausible prelude to disease onset, and early dietary interventions are likely beneficial for the prevention and treatment of progressive neurodegenerative diseases.
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Affiliation(s)
- Li Yang Tan
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore; (L.Y.T.); (X.Y.Y.)
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
| | - Xin Yi Yeo
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore; (L.Y.T.); (X.Y.Y.)
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
| | - Han-Gyu Bae
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea;
| | - Delia Pei Shan Lee
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Singapore 117542, Singapore;
| | - Roger C. Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
- Institute for Health Innovation & Technology (iHealthtech), National University of Singapore, Singapore 117599, Singapore
| | - Jung Eun Kim
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Singapore 117542, Singapore;
| | - Dong-Gyu Jo
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea;
| | - Sangyong Jung
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore; (L.Y.T.); (X.Y.Y.)
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore
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27
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Martin OA, Grant-Beurmann S, Orellana ER, Hajnal A, Fraser CM. Changes in the Gut Microbiota Following Bariatric Surgery Are Associated with Increased Alcohol Intake in a Female Rat Model. Alcohol Alcohol 2021; 56:605-613. [PMID: 34155502 DOI: 10.1093/alcalc/agab041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/21/2021] [Accepted: 05/08/2021] [Indexed: 01/16/2023] Open
Abstract
AIMS We aimed to investigate if differences in gut microbiota diversity and composition are associated with post-operative alcohol intake following bariatric surgery in a rat model. METHODS Twenty-four female rats were randomized to three treatment groups: sham surgery, vertical sleeve gastrectomy (VSG) or Roux-en-Y gastric bypass (RYGB). Stool was collected pre- and post-operatively and 16S rRNA gene amplification and sequencing was performed. Analysis focused on correlating microbial diversity, type of surgery and alcohol (EtOH) intake. RESULTS Pre-operative stools samples on regular diet showed similar taxonomic composition and Shannon diversity among the three treatment groups. There was a significant decrease in Shannon diversity and a change in taxonomic composition of the gut microbiota after rats was fed high fat diet. Post-operatively, the RYGB group showed significantly lower taxonomic diversity than the VSG and sham groups, while the VSG and sham groups diversity were not significantly different. Taxonomic composition and function prediction based on PICRUSt analysis showed the RYGB group to be distinct from the VSG and sham groups. Shannon diversity was found to be negatively associated with EtOH intake. CONCLUSIONS Changes in the taxonomic profile of the gut microbiota following bariatric surgery, particularly RYGB, are associated with increased EtOH intake and may contribute to increased alcohol use disorder risk through the gut-brain-microbiome axis.
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Affiliation(s)
- Olivia A Martin
- Institute for Genome Sciences, University of Maryland School of Medicine, West Baltimore St. 21201, Baltimore, MD, USA.,Department of Surgery, University of Maryland School of Medicine, West Baltimore St. 21201, Baltimore, MD, USA
| | - Silvia Grant-Beurmann
- Institute for Genome Sciences, University of Maryland School of Medicine, West Baltimore St. 21201, Baltimore, MD, USA
| | - Elise R Orellana
- Department of Neural and Behavioral Sciences, Pennsylvania State University College of Medicine, University Drive. 10733, Hershey, PA, USA
| | - Andras Hajnal
- Department of Neural and Behavioral Sciences, Pennsylvania State University College of Medicine, University Drive. 10733, Hershey, PA, USA
| | - Claire M Fraser
- Institute for Genome Sciences, University of Maryland School of Medicine, West Baltimore St. 21201, Baltimore, MD, USA.,Department of Medicine, University of Maryland School of Medicine, West Baltimore St. 21201, Baltimore, MD, USA.,Department of Microbiology and Immunology, University of Maryland School of Medicine, West Baltimore St. 21201, Baltimore, MD, USA
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The role of the microbiome in gastrointestinal inflammation. Biosci Rep 2021; 41:228872. [PMID: 34076695 PMCID: PMC8201460 DOI: 10.1042/bsr20203850] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/27/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022] Open
Abstract
The microbiome plays an important role in maintaining human health. Despite multiple factors being attributed to the shaping of the human microbiome, extrinsic factors such diet and use of medications including antibiotics appear to dominate. Mucosal surfaces, particularly in the gut, are highly adapted to be able to tolerate a large population of microorganisms whilst still being able to produce a rapid and effective immune response against infection. The intestinal microbiome is not functionally independent from the host mucosa and can, through presentation of microbe-associated molecular patterns (MAMPs) and generation of microbe-derived metabolites, fundamentally influence mucosal barrier integrity and modulate host immunity. In a healthy gut there is an abundance of beneficial bacteria that help to preserve intestinal homoeostasis, promote protective immune responses, and limit excessive inflammation. The importance of the microbiome is further highlighted during dysbiosis where a loss of this finely balanced microbial population can lead to mucosal barrier dysfunction, aberrant immune responses, and chronic inflammation that increases the risk of disease development. Improvements in our understanding of the microbiome are providing opportunities to harness members of a healthy microbiota to help reverse dysbiosis, reduce inflammation, and ultimately prevent disease progression.
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29
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Harper JM, Holmes DJ. New Perspectives on Avian Models for Studies of Basic Aging Processes. Biomedicines 2021; 9:biomedicines9060649. [PMID: 34200297 PMCID: PMC8230007 DOI: 10.3390/biomedicines9060649] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/28/2021] [Accepted: 05/29/2021] [Indexed: 12/18/2022] Open
Abstract
Avian models have the potential to elucidate basic cellular and molecular mechanisms underlying the slow aging rates and exceptional longevity typical of this group of vertebrates. To date, most studies of avian aging have focused on relatively few of the phenomena now thought to be intrinsic to the aging process, but primarily on responses to oxidative stress and telomere dynamics. But a variety of whole-animal and cell-based approaches to avian aging and stress resistance have been developed-especially the use of primary cell lines and isolated erythrocytes-which permit other processes to be investigated. In this review, we highlight newer studies using these approaches. We also discuss recent research on age-related changes in neural function in birds in the context of sensory changes relevant to homing and navigation, as well as the maintenance of song. More recently, with the advent of "-omic" methodologies, including whole-genome studies, new approaches have gained momentum for investigating the mechanistic basis of aging in birds. Overall, current research suggests that birds exhibit an enhanced resistance to the detrimental effects of oxidative damage and maintain higher than expected levels of cellular function as they age. There is also evidence that genetic signatures associated with cellular defenses, as well as metabolic and immune function, are enhanced in birds but data are still lacking relative to that available from more conventional model organisms. We are optimistic that continued development of avian models in geroscience, especially under controlled laboratory conditions, will provide novel insights into the exceptional longevity of this animal taxon.
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Affiliation(s)
- James M. Harper
- Department of Biological Sciences, Sam Houston State University, Huntsville, TX 77341, USA
- Correspondence: ; Tel.: +1-936-294-1543
| | - Donna J. Holmes
- Department of Biological Sciences and WWAMI Medical Education Program, University of Idaho, Moscow, ID 83844, USA;
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30
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Zheng X, Chen T, Jiang R, Zhao A, Wu Q, Kuang J, Sun D, Ren Z, Li M, Zhao M, Wang S, Bao Y, Li H, Hu C, Dong B, Li D, Wu J, Xia J, Wang X, Lan K, Rajani C, Xie G, Lu A, Jia W, Jiang C, Jia W. Hyocholic acid species improve glucose homeostasis through a distinct TGR5 and FXR signaling mechanism. Cell Metab 2021; 33:791-803.e7. [PMID: 33338411 DOI: 10.1016/j.cmet.2020.11.017] [Citation(s) in RCA: 180] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 07/31/2020] [Accepted: 11/20/2020] [Indexed: 02/08/2023]
Abstract
Hyocholic acid (HCA) and its derivatives are found in trace amounts in human blood but constitute approximately 76% of the bile acid (BA) pool in pigs, a species known for its exceptional resistance to type 2 diabetes. Here, we show that BA depletion in pigs suppressed secretion of glucagon-like peptide-1 (GLP-1) and increased blood glucose levels. HCA administration in diabetic mouse models improved serum fasting GLP-1 secretion and glucose homeostasis to a greater extent than tauroursodeoxycholic acid. HCA upregulated GLP-1 production and secretion in enteroendocrine cells via simultaneously activating G-protein-coupled BA receptor, TGR5, and inhibiting farnesoid X receptor (FXR), a unique mechanism that is not found in other BA species. We verified the findings in TGR5 knockout, intestinal FXR activation, and GLP-1 receptor inhibition mouse models. Finally, we confirmed in a clinical cohort, that lower serum concentrations of HCA species were associated with diabetes and closely related to glycemic markers.
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Affiliation(s)
- Xiaojiao Zheng
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Tianlu Chen
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Runqiu Jiang
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210093, China
| | - Aihua Zhao
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Qing Wu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, and the Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
| | - Junliang Kuang
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Dongnan Sun
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Zhenxing Ren
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Mengci Li
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Mingliang Zhao
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Shouli Wang
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Yuqian Bao
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai 200233, China
| | - Huating Li
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai 200233, China
| | - Cheng Hu
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai 200233, China
| | - Bing Dong
- National Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China
| | - Defa Li
- National Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China
| | - Jiayu Wu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, and the Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
| | - Jialin Xia
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, and the Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
| | - Xuemei Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, and the Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
| | - Ke Lan
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Cynthia Rajani
- University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Guoxiang Xie
- University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Aiping Lu
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Weiping Jia
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai 200233, China.
| | - Changtao Jiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, and the Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China.
| | - Wei Jia
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus and Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; University of Hawaii Cancer Center, Honolulu, HI 96813, USA; School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
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Narasimhan H, Ren CC, Deshpande S, Sylvia KE. Young at Gut-Turning Back the Clock with the Gut Microbiome. Microorganisms 2021; 9:microorganisms9030555. [PMID: 33800340 PMCID: PMC8001982 DOI: 10.3390/microorganisms9030555] [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: 02/09/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 12/17/2022] Open
Abstract
Over the past century, we have witnessed an increase in life-expectancy due to public health measures; however, we have also seen an increase in susceptibility to chronic disease and frailty. Microbiome dysfunction may be linked to many of the conditions that increase in prevalence with age, including type 2 diabetes, cardiovascular disease, Alzheimer's disease, and cancer, suggesting the need for further research on these connections. Moreover, because both non-modifiable (e.g., age, sex, genetics) and environmental (e.g., diet, infection) factors can influence the microbiome, there are vast opportunities for the use of interventions related to the microbiome to promote lifespan and healthspan in aging populations. To understand the mechanisms mediating many of the interventions discussed in this review, we also provide an overview of the gut microbiome's relationships with the immune system, aging, and the brain. Importantly, we explore how inflammageing (low-grade chronic inflammation that often develops with age), systemic inflammation, and senescent cells may arise from and relate to the gut microbiome. Furthermore, we explore in detail the complex gut-brain axis and the evidence surrounding how gut dysbiosis may be implicated in several age-associated neurodegenerative diseases. We also examine current research on potential interventions for healthspan and lifespan as they relate to the changes taking place in the microbiome during aging; and we begin to explore how the reduction in senescent cells and senescence-associated secretory phenotype (SASP) interplay with the microbiome during the aging process and highlight avenues for further research in this area.
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Affiliation(s)
| | - Clarissa C. Ren
- Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA;
| | | | - Kristyn E. Sylvia
- The Society for Cardiovascular Angiography and Interventions, Washington, DC 20036, USA
- Correspondence: ; Tel.: +1-774-226-6214
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Elucidating the Relations between Gut Bacterial Composition and the Plasma and Fecal Metabolomes of Antibiotic Treated Wistar Rats. MICROBIOLOGY RESEARCH 2021. [DOI: 10.3390/microbiolres12010008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The gut microbiome is vital to the health and development of an organism, specifically in determining the host response to a chemical (drug) administration. To understand this, we investigated the effects of six antibiotic (AB) treatments (Streptomycin sulfate, Roxithromycin, Sparfloxacin, Vancomycin, Clindamycin and Lincomycin hydrochloride) and diet restriction (–20%) on the gut microbiota in 28-day oral toxicity studies on Wistar rats. The fecal microbiota was determined using 16S rDNA marker gene sequencing. AB-class specific alterations were observed in the bacterial composition, whereas restriction in diet caused no observable difference. These changes associated well with the changes in the LC–MS/MS- and GC–MS-based metabolome profiles, particularly of feces and to a lesser extent of plasma. Particularly strong and AB-specific metabolic alterations were observed for bile acids in both plasma and feces matrices. Although AB-group-specific plasma metabolome changes were observed, weaker associations between fecal and plasma metabolome suggest a profound barrier between them. Numerous correlations between the bacterial families and the fecal metabolites were established, providing a holistic overview of the gut microbial functionality. Strong correlations were observed between microbiota and bile acids, lipids and fatty acids, amino acids and related metabolites. These microbiome–metabolome correlations promote understanding of the functionality of the microbiome for its host.
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Adriansjach J, Baum ST, Lefkowitz EJ, Van Der Pol WJ, Buford TW, Colman RJ. Age-Related Differences in the Gut Microbiome of Rhesus Macaques. J Gerontol A Biol Sci Med Sci 2021; 75:1293-1298. [PMID: 32052009 DOI: 10.1093/gerona/glaa048] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Indexed: 02/06/2023] Open
Abstract
Aging is a multifactorial process characterized by progressive changes in gut physiology and the intestinal mucosal immune system. These changes, along with alterations in lifestyle, diet, nutrition, inflammation and immune function alter both composition and stability of the gut microbiota. Given the impact of environmental influences on the gut microbiota, animal models are particularly useful in this field. To understand the relationship between the gut microbiota and aging in nonhuman primates, we collected fecal samples from 20 male and 20 female rhesus macaques (Macaca mulatta), across the natural macaque age range, for 16S rRNA gene analyses. Operational taxonomic units were then grouped together to summarize taxon abundance at different hierarchical levels of classification and alpha- and beta-diversity were calculated. There were no age or sex differences in alpha diversity. At the phylum level, relative abundance of Proteobacteria and Firmicutes and Firmicutes to Bacteriodetes ratio were different between age groups though significance disappeared after correction for multiple comparisons. At the class level, relative abundance of Firmicutes_Bacilli decreased and Proteobacteria_Alphaproteobacteria and Proteobacteria_Betaproteobacteria increased with each successively older group. Only differences in Firmicutes_Bacilli remained significant after correction for multiple comparisons. No sex differences were identified in relative abundances after correction for multiple comparisons. Our results are not surprising given the known impact of environmental factors on the gut microbiota.
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Affiliation(s)
- Julie Adriansjach
- Wisconsin National Primate Research Center, University of Wisconsin, Madison
| | - Scott T Baum
- Wisconsin National Primate Research Center, University of Wisconsin, Madison
| | - Elliot J Lefkowitz
- Department of Microbiology, University of Alabama at Birmingham, Madison
| | - William J Van Der Pol
- Biomedical Informatics, Center for Clinical and Translational Sciences, University of Alabama at Birmingham, Madison
| | - Thomas W Buford
- Department of Medicine, University of Alabama at Birmingham, Madison
| | - Ricki J Colman
- Wisconsin National Primate Research Center, University of Wisconsin, Madison.,Department of Cell and Regenerative Biology, University of Wisconsin, Madison
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Pistollato F, Forbes-Hernandez TY, Iglesias RC, Ruiz R, Elexpuru Zabaleta M, Dominguez I, Cianciosi D, Quiles JL, Giampieri F, Battino M. Effects of caloric restriction on immunosurveillance, microbiota and cancer cell phenotype: Possible implications for cancer treatment. Semin Cancer Biol 2020; 73:45-57. [PMID: 33271317 DOI: 10.1016/j.semcancer.2020.11.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 12/12/2022]
Abstract
Fasting, caloric restriction and foods or compounds mimicking the biological effects of caloric restriction, known as caloric restriction mimetics, have been associated with a lower risk of age-related diseases, including cardiovascular diseases, cancer and cognitive decline, and a longer lifespan. Reduced calorie intake has been shown to stimulate cancer immunosurveillance, reducing the migration of immunosuppressive regulatory T cells towards the tumor bulk. Autophagy stimulation via reduction of lysine acetylation, increased sensitivity to chemo- and immunotherapy, along with a reduction of insulin-like growth factor 1 and reactive oxygen species have been described as some of the major effects triggered by caloric restriction. Fasting and caloric restriction have also been shown to beneficially influence gut microbiota composition, modify host metabolism, reduce total cholesterol and triglyceride levels, lower diastolic blood pressure and elevate morning cortisol level, with beneficial modulatory effects on cardiopulmonary fitness, body fat and weight, fatigue and weakness, and general quality of life. Moreover, caloric restriction may reduce the carcinogenic and metastatic potential of cancer stem cells, which are generally considered responsible of tumor formation and relapse. Here, we reviewed in vitro and in vivo studies describing the effects of fasting, caloric restriction and some caloric restriction mimetics on immunosurveillance, gut microbiota, metabolism, and cancer stem cell growth, highlighting the molecular and cellular mechanisms underlying these effects. Additionally, studies on caloric restriction interventions in cancer patients or cancer risk subjects are discussed. Considering the promising effects associated with caloric restriction and caloric restriction mimetics, we think that controlled-randomized large clinical trials are warranted to evaluate the inclusion of these non-pharmacological approaches in clinical practice.
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Affiliation(s)
- Francesca Pistollato
- Centre for Nutrition and Health, Universidad Europea del Atlántico (UEA), Santander, Spain
| | - Tamara Yuliett Forbes-Hernandez
- Nutrition and Food Science Group, Department of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo, Vigo, Spain
| | | | - Roberto Ruiz
- Centre for Nutrition and Health, Universidad Europea del Atlántico (UEA), Santander, Spain
| | | | - Irma Dominguez
- Universidad Internacional Iberoamericana (UNINI), Camphece, Mexico; Universidade Internacional do Cuanza, Cuito, Angola
| | - Danila Cianciosi
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Università Politecnica delle Marche, Ancona, Italy
| | - Josè L Quiles
- Department of Physiology, Institute of Nutrition and Food Technology "Jose Mataix", Biomedical Research Center, University of Granada, Granada, 18000, Spain
| | - Francesca Giampieri
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Università Politecnica delle Marche, Ancona, Italy; Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia; College of Food Science and Technology, Northwest University, Xi'an, 710069, China.
| | - Maurizio Battino
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Università Politecnica delle Marche, Ancona, Italy; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, 212013, China.
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Peroxisome Proliferator-Activated Receptors and Caloric Restriction-Common Pathways Affecting Metabolism, Health, and Longevity. Cells 2020; 9:cells9071708. [PMID: 32708786 PMCID: PMC7407644 DOI: 10.3390/cells9071708] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/14/2020] [Accepted: 07/14/2020] [Indexed: 02/06/2023] Open
Abstract
Caloric restriction (CR) is a traditional but scientifically verified approach to promoting health and increasing lifespan. CR exerts its effects through multiple molecular pathways that trigger major metabolic adaptations. It influences key nutrient and energy-sensing pathways including mammalian target of rapamycin, Sirtuin 1, AMP-activated protein kinase, and insulin signaling, ultimately resulting in reductions in basic metabolic rate, inflammation, and oxidative stress, as well as increased autophagy and mitochondrial efficiency. CR shares multiple overlapping pathways with peroxisome proliferator-activated receptors (PPARs), particularly in energy metabolism and inflammation. Consequently, several lines of evidence suggest that PPARs might be indispensable for beneficial outcomes related to CR. In this review, we present the available evidence for the interconnection between CR and PPARs, highlighting their shared pathways and analyzing their interaction. We also discuss the possible contributions of PPARs to the effects of CR on whole organism outcomes.
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36
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Bose S, Allen AE, Locasale JW. The Molecular Link from Diet to Cancer Cell Metabolism. Mol Cell 2020; 78:1034-1044. [PMID: 32504556 PMCID: PMC7305994 DOI: 10.1016/j.molcel.2020.05.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/13/2020] [Accepted: 05/13/2020] [Indexed: 12/17/2022]
Abstract
Malignant cells remodel their metabolism to meet the demands of uncontrolled cell proliferation. These demands lead to differential requirements in energy, biosynthetic precursors, and signaling intermediates. Both genetic programs arising from oncogenic events and transcriptional programs and epigenomic events are important in providing the necessary metabolic network activity. Accumulating evidence has established that environmental factors play a major role in shaping cancer cell metabolism. For metabolism, diet and nutrition are the major environmental aspects and have emerged as key components in determining cancer cell metabolism. In this review, we discuss these emerging concepts in cancer metabolism and how diet and nutrition influence cancer cell metabolism.
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Affiliation(s)
- Shree Bose
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC 27710, USA
| | - Annamarie E Allen
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC 27710, USA
| | - Jason W Locasale
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC 27710, USA; Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC 27695, USA.
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Ikeda T, Aida M, Yoshida Y, Matsumoto S, Tanaka M, Nakayama J, Nagao Y, Nakata R, Oki E, Akahoshi T, Okano S, Nomura M, Hashizume M, Maehara Y. Alteration in faecal bile acids, gut microbial composition and diversity after laparoscopic sleeve gastrectomy. Br J Surg 2020; 107:1673-1685. [DOI: 10.1002/bjs.11654] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/02/2020] [Accepted: 04/06/2020] [Indexed: 12/20/2022]
Abstract
Abstract
Background
Laparoscopic sleeve gastrectomy (LSG) is a well established treatment for severe obesity and type 2 diabetes. Although the gut microbiota is linked to the efficacy of LSG, the underlying mechanisms remain elusive. The effect of LSG for morbid obesity on the gut microbiota and bile acids was assessed here.
Methods
Severely obese subjects who were candidates for LSG were included and followed until 6 months after surgery. The composition and abundance of the microbiota and bile acids in faeces were assessed by 16S ribosomal RNA sequencing, quantitative PCR and liquid chromatography–mass spectrometry.
Results
In total, 28 patients with a mean(s.d.) BMI of 44·2(6·6) kg/m2 were enrolled. These patients had achieved excess weight loss of 53·2(19·0) per cent and showed improvement in metabolic diseases by 6 months after LSG, accompanied by an alteration in the faecal microbial community. The increase in α-diversity and abundance of specific taxa, such as Rikenellaceae and Christensenellaceae, was strongly associated with reduced faecal bile acid levels. These changes had a significant positive association with excess weight loss and metabolic alterations. However, the total number of faecal bacteria was lower in patients before (mean(s.d.) 10·26(0·36) log10 cells per g faeces) and after (10·39(0·29) log10 cells per g faeces) operation than in healthy subjects (10·83(0·27) log10 cells per g faeces).
Conclusion
LSG is associated with a reduction in faecal bile acids and greater abundance of specific bacterial taxa and α-diversity that may contribute to the metabolic changes.
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Affiliation(s)
- T Ikeda
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
- Department of Oral Medicine Research Centre, Fukuoka, Japan
| | - M Aida
- Yakult Central Institute, Tokyo, Japan
| | - Y Yoshida
- Yakult Central Institute, Tokyo, Japan
| | | | - M Tanaka
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Fukuoka, Japan
| | - J Nakayama
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Fukuoka, Japan
| | - Y Nagao
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - R Nakata
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - E Oki
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Akahoshi
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - S Okano
- Department of Pathology, Fukuoka Dental College, Fukuoka, Japan
| | - M Nomura
- Department of Medicine and Bioregulatory Science, Fukuoka, Japan
| | - M Hashizume
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - Y Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Mohr AE, Jäger R, Carpenter KC, Kerksick CM, Purpura M, Townsend JR, West NP, Black K, Gleeson M, Pyne DB, Wells SD, Arent SM, Kreider RB, Campbell BI, Bannock L, Scheiman J, Wissent CJ, Pane M, Kalman DS, Pugh JN, Ortega-Santos CP, Ter Haar JA, Arciero PJ, Antonio J. The athletic gut microbiota. J Int Soc Sports Nutr 2020; 17:24. [PMID: 32398103 PMCID: PMC7218537 DOI: 10.1186/s12970-020-00353-w] [Citation(s) in RCA: 146] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/28/2020] [Indexed: 12/11/2022] Open
Abstract
The microorganisms in the gastrointestinal tract play a significant role in nutrient uptake, vitamin synthesis, energy harvest, inflammatory modulation, and host immune response, collectively contributing to human health. Important factors such as age, birth method, antibiotic use, and diet have been established as formative factors that shape the gut microbiota. Yet, less described is the role that exercise plays, particularly how associated factors and stressors, such as sport/exercise-specific diet, environment, and their interactions, may influence the gut microbiota. In particular, high-level athletes offer remarkable physiology and metabolism (including muscular strength/power, aerobic capacity, energy expenditure, and heat production) compared to sedentary individuals, and provide unique insight in gut microbiota research. In addition, the gut microbiota with its ability to harvest energy, modulate the immune system, and influence gastrointestinal health, likely plays an important role in athlete health, wellbeing, and sports performance. Therefore, understanding the mechanisms in which the gut microbiota could play in the role of influencing athletic performance is of considerable interest to athletes who work to improve their results in competition as well as reduce recovery time during training. Ultimately this research is expected to extend beyond athletics as understanding optimal fitness has applications for overall health and wellness in larger communities. Therefore, the purpose of this narrative review is to summarize current knowledge of the athletic gut microbiota and the factors that shape it. Exercise, associated dietary factors, and the athletic classification promote a more “health-associated” gut microbiota. Such features include a higher abundance of health-promoting bacterial species, increased microbial diversity, functional metabolic capacity, and microbial-associated metabolites, stimulation of bacterial abundance that can modulate mucosal immunity, and improved gastrointestinal barrier function.
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Affiliation(s)
- Alex E Mohr
- College of Health Solutions, Arizona State University, Phoenix, AZ, USA.
| | - Ralf Jäger
- Increnovo LLC, Milwaukee, WI, 53202, USA
| | | | - Chad M Kerksick
- Exercise and Performance Nutrition Laboratory, School of Health Sciences, Lindenwood University, St. Charles, MO, USA
| | | | - Jeremy R Townsend
- Exercise and Nutrition Science Graduate Program, Lipscomb University, Nashville, TN, 37204, USA
| | - Nicholas P West
- School of Medical Research and Menzies Health Institute of QLD, Griffith Health, Griffith University, Southport, Australia
| | - Katherine Black
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Michael Gleeson
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - David B Pyne
- Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT 2617, Australia
| | | | - Shawn M Arent
- Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Richard B Kreider
- Exercise & Sport Nutrition Lab, Human Clinical Research Facility, Department of Health & Kinesiology, Texas A&M University, College Station, TX, 77843-4253, USA
| | - Bill I Campbell
- Performance & Physique Enhancement Laboratory, University of South Florida, Tampa, FL, USA
| | | | | | - Craig J Wissent
- Jamieson Wellness Inc., 4025 Rhodes Drive, Windsor, Ontario, N8W 5B5, Canada
| | - Marco Pane
- Bioloab Research, Via E. Mattei 3, 28100, Novara, Italy
| | - Douglas S Kalman
- Scientific Affairs, Nutrasource Diagnostics, Inc. Guelph, Guelph, Ontario, Canada
| | - Jamie N Pugh
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Tom Reilly Building, Byrom St Campus, Liverpool, L3 3AF, UK
| | | | | | - Paul J Arciero
- Health and Human Physiological Sciences Department, Skidmore College, Saratoga Springs, NY, USA
| | - Jose Antonio
- Exercise and Sport Science, Nova Southeastern University, Davie, FL, USA
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SOD1 deficiency alters gastrointestinal microbiota and metabolites in mice. Exp Gerontol 2019; 130:110795. [PMID: 31805337 DOI: 10.1016/j.exger.2019.110795] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 02/06/2023]
Abstract
Redox imbalance induces oxidative damage and causes age-related pathologies. Mice lacking the antioxidant enzyme SOD1 (Sod1-/-) exhibit various aging-like phenotypes throughout the body and are used as aging model mice. Recent reports suggested that age-related changes in the intestinal environment are involved in various diseases. We investigated cecal microbiota profiles and gastrointestinal metabolites in wild-type (Sod1+/+) and Sod1-/- mice. Firmicutes and Bacteroidetes were dominant in Sod1+/+ mice, and most of the detected bacterial species belong to these two phyla. Meanwhile, the Sod1-/- mice had an altered Firmicutes and Bacteroidetes ratio compared to Sod1+/+ mice. Among the identified genera, Paraprevotella, Prevotella, Ruminococcus, and Bacteroides were significantly increased, but Lactobacillus was significantly decreased in Sod1-/- mice compared to Sod1+/+ mice. The correlation analyses between cecal microbiota and liver metabolites showed that Bacteroides and Prevotella spp. were grouped into the same cluster, and Paraprevotella and Ruminococcus spp. were also grouped as another cluster. These four genera showed a positive and a negative correlation with increased and decreased liver metabolites in Sod1-/- mice, respectively. In contrast, Lactobacillus spp. showed a negative correlation with increased liver metabolites and a positive correlation with decreased liver metabolites in Sod1-/- mice. These results suggest that the redox imbalance induced by Sod1 loss alters gastrointestinal microflora and metabolites.
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Cabrera-Mulero A, Tinahones A, Bandera B, Moreno-Indias I, Macías-González M, Tinahones FJ. Keto microbiota: A powerful contributor to host disease recovery. Rev Endocr Metab Disord 2019; 20:415-425. [PMID: 31720986 PMCID: PMC6938789 DOI: 10.1007/s11154-019-09518-8] [Citation(s) in RCA: 40] [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] [Indexed: 12/21/2022]
Abstract
Gut microbiota (GM) is a key contributor to host metabolism and physiology. Data generated on comparing diseased and healthy subjects have reported changes in the GM profile between both health states, suggesting certain bacterial composition could be involved in pathogenesis. Moreover, studies reported that reshaping of GM could contribute actively to disease recovery. Interestingly, ketogenic diets (KD) have emerged recently as new economic dietotherapeutic strategy to combat a myriad of diseases (refractory epilepsy, obesity, cancer, neurodegenerative diseases…). KD, understood in a broad sense, refers to whatever dietetic approximation, which causes physiological ketosis. Therefore, high fat-low carbs diets, fasting periods or caloric restriction constitute different strategies to produce an increase of main ketones bodies, acetoacetate and β-hydroxybutyrate, in blood. Involved biological mechanisms in ketotherapeutic effects are still to be unravelled. However, it has been pointed out that GM remodelling by KD, from now on "keto microbiota", may play a crucial role in patient response to KD treatment. In fact, germ-free animals were resistant to ketotherapeutic effects; reinforcing keto microbiota may be a powerful contributor to host disease recovery. In this review, we will comment the influence of gut microbiota on host, as well as, therapeutic potential of ketogenic diets and keto microbiota to restore health status. Current progress and limitations will be argued too. In spite of few studies have defined applicability and mechanisms of KD, in the light of results, keto microbiota might be a new useful therapeutic agent.
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Affiliation(s)
- Amanda Cabrera-Mulero
- Deparment of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA) and University of Malaga, Campus de Teatinos s/n, 29010, Malaga, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
| | - Alberto Tinahones
- Deparment of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA) and University of Malaga, Campus de Teatinos s/n, 29010, Malaga, Spain
| | - Borja Bandera
- Deparment of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA) and University of Malaga, Campus de Teatinos s/n, 29010, Malaga, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
| | - Isabel Moreno-Indias
- Deparment of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA) and University of Malaga, Campus de Teatinos s/n, 29010, Malaga, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
| | - Manuel Macías-González
- Deparment of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA) and University of Malaga, Campus de Teatinos s/n, 29010, Malaga, Spain.
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain.
| | - Francisco J Tinahones
- Deparment of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA) and University of Malaga, Campus de Teatinos s/n, 29010, Malaga, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
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Allostatic load and ageing: linking the microbiome and nutrition with age-related health. Biochem Soc Trans 2019; 47:1165-1172. [PMID: 31416886 DOI: 10.1042/bst20190110] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/17/2019] [Accepted: 07/23/2019] [Indexed: 12/14/2022]
Abstract
Ageing is a process of decline in physiological function and capability over time. It is an anticipated major burden on societal health-care costs due to an increasingly aged global population. Accelerated biological ageing is a feature of age-related morbidities, which also appear to share common underpinning features, including low-grade persistent inflammation, phosphate toxicity, diminished Nrf2 activity, a depleted metabolic capability, depressed mitochondrial biogenesis and a low diversity gut microbiome.Social, psychological, lifestyle and nutritional risk factors can all influence the trajectory of age-related health, as part of an individual's exposome, which reflects the interplay between the genome and the environment. This is manifest as allostatic (over)load reflecting the burden of lifestyle/disease at both a physiological and molecular level. In particular, age-related genomic methylation levels and inflammatory status reflect exposome differences. These features may be mediated by changes in microbial diversity. This can drive the generation of pro-inflammatory factors, such as TMAO, implicated in the 'diseasome' of ageing. Additionally, it can be influenced by the 'foodome', via nutritional differences affecting the availability of methyl donors required for maintenance of the epigenome and by the provision of nutritionally derived Nrf2 agonists. Both these factors influence age-related physiological resilience and health. This offers novel insights into possible interventions to improve health span, including a rage of emerging senotherapies and simple modifications of the nutritional and environmental exposome. In essence, the emerging strategy is to treat ageing processes common to the diseasome of ageing itself and thus preempt the development or progression of a range of age-related morbidities.
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Diabesity and mood disorders: Multiple links through the microbiota-gut-brain axis. Mol Aspects Med 2018; 66:80-93. [PMID: 30513310 DOI: 10.1016/j.mam.2018.11.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/30/2018] [Accepted: 11/30/2018] [Indexed: 02/07/2023]
Abstract
The global prevalence of diabesity is on the rise, and the clinical, social and economic health burden arising from this epidemic is aggravated by a significant co-morbidity of diabesity with neuropsychiatric disease, particularly depression. Importantly, not only is the prevalence of mood disorders elevated in patients with type 2 diabetes, depressed patients are also more prone to develop diabetes. This reciprocal relationship calls for a molecular and systemic analysis of diabesity-brain interactions to guide preventive and therapeutic strategies. The analysis we are presenting in this review is modelled on the microbiota-gut-brain axis, which provides the brain with information from the gut not only via the nervous system, but also via a continuous stream of microbial, endocrine, metabolic and immune messages. This communication network offers important clues as to how obesity and diabetes could target the brain to provoke neuropsychiatric disease. There is emerging evidence that the gut microbiota is orchestrating a multiplicity of bodily functions that are intimately related to the immune, metabolic and nervous systems and that gut dysbiosis spoils the homeostasis between these systems. In our article we highlight two groups of molecular links that seem to have a significant bearing on the impact of diabesity on the brain. On the one hand, we focus on microbiota-related metabolites such as short-chain fatty acids, tryptophan metabolites, immune stimulants and endocannabinoids that are likely to play a mediator role. On the other hand, we discuss signalling molecules that operate primarily in the brain, specifically neuropeptide Y, brain-derived neurotrophic factor and γ-amino butyric acid, that are disturbed by microbial factors, obesity and diabetes and are relevant to mental illness. Finally, we address the usefulness of diet-related interventions to suspend the deleterious relationship between diabesity and mood disorders.
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