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Chun Y, Grishin A, Rose R, Zhao W, Arditi Z, Zhang L, Wood RA, Burks AW, Jones SM, Leung DYM, Jones DR, Sampson HA, Sicherer SH, Bunyavanich S. Longitudinal dynamics of the gut microbiome and metabolome in peanut allergy development. J Allergy Clin Immunol 2023; 152:1569-1580. [PMID: 37619819 DOI: 10.1016/j.jaci.2023.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 07/20/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND Rising rates of peanut allergy (PA) motivate investigations of its development to inform prevention and therapy. Microbiota and the metabolites they produce shape food allergy risk. OBJECTIVE We sought to gain insight into gut microbiome and metabolome dynamics in the development of PA. METHODS We performed a longitudinal, integrative study of the gut microbiome and metabolome of infants with allergy risk factors but no PA from a multicenter cohort followed through mid-childhood. We performed 16S rRNA sequencing, short chain fatty acid measurements, and global metabolome profiling of fecal samples at infancy and at mid-childhood. RESULTS In this longitudinal, multicenter sample (n = 122), 28.7% of infants developed PA by mid-childhood (mean age 9 years). Lower infant gut microbiome diversity was associated with PA development (P = .014). Temporal changes in the relative abundance of specific microbiota and gut metabolite levels significantly differed in children who developed PA. PA-bound children had different abundance trajectories of Clostridium sensu stricto 1 sp (false discovery rate (FDR) = 0.015) and Bifidobacterium sp (FDR = 0.033), with butyrate (FDR = 0.045) and isovalerate (FDR = 0.036) decreasing over time. Metabolites associated with PA development clustered within the histidine metabolism pathway. Positive correlations between microbiota, butyrate, and isovalerate and negative correlations with histamine marked the PA-free network. CONCLUSION The temporal dynamics of the gut microbiome and metabolome in early childhood are distinct for children who develop PA. These findings inform our thinking on the mechanisms underlying and strategies for potentially preventing PA.
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Affiliation(s)
- Yoojin Chun
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Alexander Grishin
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Rebecca Rose
- Metabolomics Core, New York University, New York, NY
| | - William Zhao
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Zoe Arditi
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Lingdi Zhang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Robert A Wood
- Department of Pediatrics, Johns Hopkins University, Baltimore, Md
| | - A Wesley Burks
- Department of Pediatrics, University of North Carolina, Chapel Hill, NC
| | - Stacie M Jones
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Ark
| | | | - Drew R Jones
- Metabolomics Core, New York University, New York, NY
| | - Hugh A Sampson
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Scott H Sicherer
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Supinda Bunyavanich
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY.
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Liu L, Mahalak KK, Bobokalonov JT, Narrowe AB, Firrman J, Lemons JMS, Bittinger K, Hu W, Jones SM, Moustafa AM. Impact of Ivermectin on the Gut Microbial Ecosystem. Int J Mol Sci 2023; 24:16125. [PMID: 38003317 PMCID: PMC10671733 DOI: 10.3390/ijms242216125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/02/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023] Open
Abstract
Ivermectin is a an anti-helminthic that is critical globally for both human and veterinary care. To the best of our knowledge, information available regarding the influence of ivermectin (IVM) on the gut microbiota has only been collected from diseased donors, who were treated with IVM alone or in combination with other medicines. Results thus obtained were influenced by multiple elements beyond IVM, such as disease, and other medical treatments. The research presented here investigated the impact of IVM on the gut microbial structure established in a Triple-SHIME® (simulator of the human intestinal microbial ecosystem), using fecal material from three healthy adults. The microbial communities were grown using three different culture media: standard SHIME media and SHIME media with either soluble or insoluble fiber added (control, SF, ISF). IVM introduced minor and temporary changes to the gut microbial community in terms of composition and metabolite production, as revealed by 16S rRNA amplicon sequencing analysis, flow cytometry, and GC-MS. Thus, it was concluded that IVM is not expected to induce dysbiosis or yield adverse effects if administered to healthy adults. In addition, the donor's starting community influences the relationship between IVM and the gut microbiome, and the soluble fiber component in feed could protect the gut microbiota from IVM; an increase in short-chain fatty acid production was predicted by PICRUSt2 and detected with IVM treatment.
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Affiliation(s)
- LinShu Liu
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA 19038, USA
| | - Karley K. Mahalak
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA 19038, USA
| | - Jamshed T. Bobokalonov
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA 19038, USA
| | - Adrienne B. Narrowe
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA 19038, USA
| | - Jenni Firrman
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA 19038, USA
| | - Johanna M. S. Lemons
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA 19038, USA
| | - Kyle Bittinger
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Weiming Hu
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Steven M. Jones
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Ahmed M. Moustafa
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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Li T, Rui Z, Mao L, Chang Y, Shao J, Chen Y, Han Q, Sui X, An N, Li H, Feng H, Jiang T, Wang Q. Eight Weeks of Bifidobacterium lactis BL-99 Supplementation Improves Lipid Metabolism and Sports Performance through Short-Chain Fatty Acids in Cross-Country Skiers: A Preliminary Study. Nutrients 2023; 15:4554. [PMID: 37960207 PMCID: PMC10648242 DOI: 10.3390/nu15214554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
(1) Background: Probiotics in the form of nutritional supplements are safe and potentially useful for strategic application among endurance athletes. Bifidobacterium animalis lactis BL-99 (BL-99) was isolated from the intestines of healthy Chinese infants. We combined plasma-targeted metabolomics and fecal metagenomics to explore the effect of 8 weeks of BL-99 supplementation on cross-country skiers' metabolism and sports performance. (2) Methods: Sixteen national top-level male cross-country skiers were recruited and randomly divided into a placebo group (C) and a BL-99 group (E). The participants took the supplements four times/day (with each of three meals and at 21:00) consistently for 8 weeks. The experiment was conducted in a single-blind randomized fashion. The subject's dietary intake and total daily energy consumption were recorded. Blood and stool samples were collected before and after the 8-week intervention, and body composition, muscle strength, blood biochemical parameters, plasma-targeted metabolomic data, and fecal metagenomic data were then analyzed. (3) Results: The following changes occurred after 8 weeks of BL-99 supplementation: (a) There was no significant difference in the average total daily energy consumption and body composition between the C and E groups. (b) The VO2max and 60°/s and 180°/s knee joint extensor strength significantly increased in both the C and E groups. By the eighth week, the VO2max and 60 s knee-joint extensor strength were significantly higher in the E group than in the C group. (c) The triglyceride levels significantly decreased in both the C and E groups. In addition, the LDL-C levels significantly decreased in the E group. (d) The abundance of Bifidobacterium animalis increased two-fold in the C group and forty-fold in the E group. (e) Plasma-targeted metabolomic analysis showed that, after eight weeks of BL-99 supplementation, the increases in DHA, adrenic acid, linoleic acid, and acetic acid and decreases in glycocholic acid and glycodeoxycholic acid in the E group were significantly higher than those in the C group. (f) Spearman correlation analysis showed that there was a significant positive correlation between Bifidobacterium animalis' abundance and SCFAs, PUFAs, and bile acids. (g) There was a significant correlation between the most significantly regulated metabolites and indicators related to sports performance and lipid metabolism. (4) Conclusions: Eight weeks of BL-99 supplementation combined with training may help to improve lipid metabolism and sports performance by increasing the abundance of Bifidobacterium, which can promote the generation of short-chain fatty acids and unsaturated fatty acids, and inhibit the synthesis of bile acids.
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Affiliation(s)
- Tieying Li
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing 100029, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing 100029, China
- National Testing & Research Center for Sports Nutrition, Ministry of Science and Technology of the People’s Republic of China, Beijing 100029, China
| | - Zihan Rui
- College of Exercise Science, Beijing Sport University, Beijing 100084, China
| | - Letian Mao
- College of Exercise & Health Science, Xi’an Physical Education University, Xi’an 710068, China
| | - Yashan Chang
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing 100029, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing 100029, China
- National Testing & Research Center for Sports Nutrition, Ministry of Science and Technology of the People’s Republic of China, Beijing 100029, China
| | - Jing Shao
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing 100029, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing 100029, China
- National Testing & Research Center for Sports Nutrition, Ministry of Science and Technology of the People’s Republic of China, Beijing 100029, China
| | - Yue Chen
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing 100029, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing 100029, China
- National Testing & Research Center for Sports Nutrition, Ministry of Science and Technology of the People’s Republic of China, Beijing 100029, China
| | - Qi Han
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing 100029, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing 100029, China
- National Testing & Research Center for Sports Nutrition, Ministry of Science and Technology of the People’s Republic of China, Beijing 100029, China
| | - Xuemei Sui
- Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
| | - Nan An
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing 100029, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing 100029, China
- National Testing & Research Center for Sports Nutrition, Ministry of Science and Technology of the People’s Republic of China, Beijing 100029, China
| | - Haoqiu Li
- Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot 010110, China
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot 010110, China
| | - Haotian Feng
- Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot 010110, China
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot 010110, China
| | - Tao Jiang
- College of Exercise & Health Science, Xi’an Physical Education University, Xi’an 710068, China
| | - Qirong Wang
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing 100029, China
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Yasuda R, Kamada K, Murakami T, Inoue R, Mizushima K, Hirose R, Inoue K, Dohi O, Yoshida N, Katada K, Uchiyama K, Handa O, Ishikawa T, Takagi T, Konishi H, Naito Y, Itoh Y. Astaxanthin attenuated the stress-induced intestinal motility disorder via altering the gut microbiota. INT J VITAM NUTR RES 2023; 93:427-437. [PMID: 35635517 DOI: 10.1024/0300-9831/a000756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Gut microbiota and short-chain fatty acids (SCFAs) are recognized as key factors in the pathophysiology of irritable bowel syndrome. Astaxanthin is a carotenoid with strong antioxidant and anti-inflammatory activities. In this study, we examined the effects of astaxanthin on gut microbiota-, SCFAs-, and corticotropin-releasing factor (CRH)-induced intestinal hypermotility. Male Wistar rats (n=12 per group) were fed a diet with or without 0. 02% (w/w) astaxanthin for four weeks and CRH or saline was administered intravenously. The number of fecal pellets was counted 2 h after injection. Then the rats were sacrificed, and the cecal content were collected 3 h after injection. The number of feces was significantly increased by CRH injection in the control group (2.0 vs. 6.5; p=0.028), but not in the astaxanthin group (1.0 vs. 2.2; p=0.229) (n=6 per group). The cecal microbiota in the astaxanthin group was significantly altered compared with that in the control group. The concentrations of acetic acid (81.1 μmol/g vs. 103.9 μmol/g; p=0.015) and butyric acid (13.4 μmol/g vs. 39.2 μmol/g; p<0.001) in the astaxanthin group were significantly lower than that in the control group (n=12 per group). Astaxanthin attenuates CRH-induced intestinal hypermotility and alters the composition of gut microbiota and SCFAs.
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Affiliation(s)
- Ritsu Yasuda
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Kazuhiro Kamada
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Takaaki Murakami
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Ryo Inoue
- Laboratory of Animal Science, Setsunan University, Hirakata, Japan
| | - Katsura Mizushima
- Department of Human Immunology and Nutrition Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ryohei Hirose
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Ken Inoue
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Osamu Dohi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Naohisa Yoshida
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Kazuhiro Katada
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Kazuhiko Uchiyama
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Osamu Handa
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Takeshi Ishikawa
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Tomohisa Takagi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Hideyuki Konishi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Yuji Naito
- Department of Human Immunology and Nutrition Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoshito Itoh
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
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Mansuy-Aubert V, Ravussin Y. Short chain fatty acids: the messengers from down below. Front Neurosci 2023; 17:1197759. [PMID: 37483350 PMCID: PMC10359501 DOI: 10.3389/fnins.2023.1197759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/19/2023] [Indexed: 07/25/2023] Open
Abstract
Short-chain fatty acids (SCFAs), produced by the metabolism of dietary fibers in the gut, have wide-ranging effects locally and throughout the body. They modulate the enteric and central nervous systems, benefit anti-inflammatory pathways, and serve as energy sources. Recent research reveals SCFAs as crucial communicators between the gut and brain, forming the gut-brain axis. This perspective highlights key findings and discusses signaling mechanisms connecting SCFAs to the brain. By shedding light on this link, the perspective aims to inspire innovative research in this rapidly developing field.
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Affiliation(s)
- Virginie Mansuy-Aubert
- Department of Biomedical Sciences, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Yann Ravussin
- Laboratory of Energetics and Advanced Nutrition (LEAN), Department of Endocrinology, Metabolism and Cardiovascular Systems (EMC), Faculty of Science and Medicine, University of Fribourg (UNIFR), Fribourg, Switzerland
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6
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Wang X, Wang Q, Cai D, Guo X, Tong P, Yin F, Liu X, Zhou D. In Vitro Gastrointestinal Digestion and Microbial Hydrolysis of Hydroxytyrosol-SCFA and Tyrosol-SCFA Acyl Esters: Controlled-Release of SCFAs and Polyphenols. J Agric Food Chem 2023. [PMID: 37294303 DOI: 10.1021/acs.jafc.3c00747] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Phenolipids such as hydroxytyrosol-SCFA acyl esters (HTy-SEs) and tyrosol-SCFA acyl esters (TYr-SEs) with various alkyl chains lengths (C1-C4) and different isomers (branched-chain and straight-chain) were successfully synthesized. All esters were hydrolyzed by pancreatic lipase to produce polyphenols (HTy and TYr) and SCFAs (iso-butyric acid, acetic acid, propionic acid, and n-butyric acid). Moreover, HTy-SEs (and TYr-SEs) could also be hydrolyzed to free HTy (and TYr) and SCFAs by gut microbiota and Lactobacillus from mice feces. Especially, the hydrolysis rates showed positive correlation with the carbon skeleton length, and the hydrolysis degree (DH) of ester with a branched-chain fatty acid was weaker than that of ester with a straight-chain fatty acid. Besides, the DH values of TYr -SEs were significantly higher than those of HTy-SEs. Therefore, through regulating the structures of polyphenols, carbon skeleton lengths, and isomers, controlled-release of polyphenols and SCFAs from phenolipids will be easily achieved.
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Affiliation(s)
- Xinmiao Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Qian Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Dong Cai
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Xu Guo
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Peiyong Tong
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Fawen Yin
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Xiaoyang Liu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Dayong Zhou
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, People's Republic of China
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Calabrò S, Kankowski S, Cescon M, Gambarotta G, Raimondo S, Haastert-Talini K, Ronchi G. Impact of Gut Microbiota on the Peripheral Nervous System in Physiological, Regenerative and Pathological Conditions. Int J Mol Sci 2023; 24:ijms24098061. [PMID: 37175764 PMCID: PMC10179357 DOI: 10.3390/ijms24098061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
It has been widely demonstrated that the gut microbiota is responsible for essential functions in human health and that its perturbation is implicated in the development and progression of a growing list of diseases. The number of studies evaluating how the gut microbiota interacts with and influences other organs and systems in the body and vice versa is constantly increasing and several 'gut-organ axes' have already been defined. Recently, the view on the link between the gut microbiota (GM) and the peripheral nervous system (PNS) has become broader by exceeding the fact that the PNS can serve as a systemic carrier of GM-derived metabolites and products to other organs. The PNS as the communication network between the central nervous system and the periphery of the body and internal organs can rather be affected itself by GM perturbation. In this review, we summarize the current knowledge about the impact of gut microbiota on the PNS, with regard to its somatic and autonomic divisions, in physiological, regenerative and pathological conditions.
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Affiliation(s)
- Sonia Calabrò
- Department of Molecular Medicine, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
- Department of Biology, University of Padova, Viale G. Colombo 3, 35131 Padova, Italy
| | - Svenja Kankowski
- Hannover Medical School, Institute of Neuroanatomy and Cell Biology, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Matilde Cescon
- Department of Molecular Medicine, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
| | - Giovanna Gambarotta
- Department of Clinical and Biological Sciences & Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, Orbassano, 10043 Torino, Italy
| | - Stefania Raimondo
- Department of Clinical and Biological Sciences & Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, Orbassano, 10043 Torino, Italy
| | - Kirsten Haastert-Talini
- Hannover Medical School, Institute of Neuroanatomy and Cell Biology, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
- Center for Systems Neuroscience Hannover (ZSN), Buenteweg 2, 30559 Hannover, Germany
| | - Giulia Ronchi
- Department of Clinical and Biological Sciences & Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, Orbassano, 10043 Torino, Italy
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8
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Zhang Y, Shen Y, Liufu N, Liu L, Li W, Shi Z, Zheng H, Mei X, Chen CY, Jiang Z, Abtahi S, Dong Y, Liang F, Shi Y, Cheng L, Yang G, Kang JX, Wilkinson J, Xie Z. Transmission of Alzheimer's Disease-Associated Microbiota Dysbiosis and its Impact on Cognitive Function: Evidence from Mouse Models and Human Patients. Res Sq 2023:rs.3.rs-2790988. [PMID: 37162940 PMCID: PMC10168447 DOI: 10.21203/rs.3.rs-2790988/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Spouses of Alzheimer's disease (AD) patients are at higher risk of developing AD dementia, but the reasons and underlying mechanism are unknown. One potential factor is gut microbiota dysbiosis, which has been associated with AD. However, it remains unclear whether the gut microbiota dysbiosis can be transmitted to non-AD individuals and contribute to the development of AD pathogenesis and cognitive impairment. The present study found that co-housing wild-type mice with AD transgenic mice or giving them AD transgenic mice feces caused AD-associated gut microbiota dysbiosis, Tau phosphorylation, and cognitive impairment. Gavage with Lactobacillus and Bifidobacterium restored these changes. The oral and gut microbiota of AD patient partners resembled that of AD patients but differed from healthy controls, indicating the transmission of oral and gut microbiota and its impact on cognitive function. The underlying mechanism of these findings includes that the butyric acid-mediated acetylation of GSK3β at lysine 15 regulated its phosphorylation at serine 9, consequently impacting Tau phosphorylation. These results provide insight into a potential link between gut microbiota dysbiosis and AD and underscore the need for further research in this area.
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Affiliation(s)
| | - Yuan Shen
- Tenth People's Hospital of Tongji University
| | | | | | - Wei Li
- Massachusetts General Hospital
| | | | | | | | | | | | | | - Yuanlin Dong
- Geriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School
| | | | | | | | - Guang Yang
- Department of Anesthesiology, Columbia University
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9
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Zhang Z, Liu B, Liu X, Hu W, Zhang C, Guo Y, Wu W. Effects of Steaming on Sweet Potato Soluble Dietary Fiber: Content, Structure, and Lactobacillus Proliferation In Vitro. Foods 2023; 12:foods12081620. [PMID: 37107415 PMCID: PMC10138094 DOI: 10.3390/foods12081620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/02/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
The influence of steaming treatment on the soluble dietary fiber (SDF) of sweet potato was investigated. The SDF content increased from 2.21 to 4.04 g/100 g (in dry basis) during 20 min of steaming. The microcosmic morphology of the fractured cell wall indicated the release of SDF components during steaming. The SDF from fresh (SDF-F) and 20 min steamed (SDF-S) sweet potato was characterized. The neutral carbohydrates and uronic acid levels in SDF-S were significantly higher than SDF-F (59.31% versus 46.83%, and 25.36% versus 9.60%, respectively) (p < 0.05). The molecular weight of SDF-S was smaller than SDF-F (5.32 kDa versus 28.79 kDa). The probiotic property was evaluated by four Lactobacillus spp. fermentation in vitro with these SDF as carbon source, using inulin as the references. SDF-F showed the best proliferation effects on the four Lactobacillus spp. in terms of the OD600 and pH in cultures, and the highest production of propanoic acid and butyric acid after 24 h fermentation. SDF-S presented higher Lactobacillus proliferation effects, but slight lower propanoic acid and butyric acid production than inulin. It was concluded that 20 min of steaming released SDF with inferior probiotic properties, which might derive from the degraded pectin, cell wall components, and resistant dextrin.
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Affiliation(s)
- Zhiguo Zhang
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Buyu Liu
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- College of Food and Health, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Xingquan Liu
- College of Food and Health, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Weiwei Hu
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Chengcheng Zhang
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yang Guo
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Weicheng Wu
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
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10
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Luo X, Han Z, Kong Q, Wang Y, Mou H, Duan X. Clostridium butyricum Prevents Dysbiosis and the Rise in Blood Pressure in Spontaneously Hypertensive Rats. Int J Mol Sci 2023; 24. [PMID: 36902386 DOI: 10.3390/ijms24054955] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 03/08/2023] Open
Abstract
Hypertension is accompanied by dysbiosis and a decrease in the relative abundance of short-chain fatty acid (SCFA)-producing bacteria. However, there is no report to examine the role of C. butyricum in blood pressure regulation. We hypothesized that a decrease in the relative abundance of SCFA-producing bacteria in the gut was the cause of spontaneously hypertensive rats (SHR)-induced hypertension. C. butyricum and captopril were used to treat adult SHR for six weeks. C. butyricum modulated SHR-induced dysbiosis and significantly reduced systolic blood pressure (SBP) in SHR (p < 0.01). A 16S rRNA analysis determined changes in the relative abundance of the mainly SCFA-producing bacteria Akkermansia muciniphila, Lactobacillus amylovorus, and Agthobacter rectalis, which increased significantly. Total SCFAs, and particularly butyrate concentrations, in the SHR cecum and plasma were reduced (p < 0.05), while C. butyricum prevented this effect. Likewise, we supplemented SHR with butyrate for six weeks. We analyzed the flora composition, cecum SCFA concentration, and inflammatory response. The results showed that butyrate prevented SHR-induced hypertension and inflammation, and the decline of cecum SCFA concentrations (p < 0.05). This research revealed that increasing cecum butyrate concentrations by probiotics, or direct butyrate supplementation, prevented the adverse effects of SHR on intestinal flora, vascular, and blood pressure.
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11
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Hildebrand CB, Lichatz R, Pich A, Mühlfeld C, Woltemate S, Vital M, Brandenberger C. Short chain fatty acids improve inflamm-aging and acute lung injury in old mice. Am J Physiol Lung Cell Mol Physiol 2023; 324:L480-L492. [PMID: 36802219 DOI: 10.1152/ajplung.00296.2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
A chronic pro-inflammatory milieu (inflamm-aging) is observed in the elderly and associated with poorer prognosis in acute lung injury (ALI). Gut microbiome-derived short chain fatty acids (SCFAs) are known to have immunomodulatory capabilities, but their function in the gut-lung axis in aging is poorly understood. Here we analyzed the gut microbiome and its impact on inflammatory signaling in the aging lung and tested the effects of SCFAs in young (3 months) and old (18 months) mice that received either drinking water with a mixture of each 50 mM acetate, butyrate and propionate for two weeks or water alone. ALI was induced by intranasal lipopolysaccharide (LPS; n=12/group) administration. Controls (n=8/group) received saline. Fecal pellets were sampled for gut microbiome analysis before and after LPS/saline treatment. The left lung lobe was collected for stereology and right lung lobes for cytokine and gene expression analysis, inflammatory cell activation and proteomics. Different gut microbial taxa, such as Bifidobacterium, Faecalibaculum and Lactobacillus correlated positively with pulmonary inflammation in aging, suggesting an impact on inflamm-aging in the gut-lung axis. The supplementation of SCFAs reduced inflamm-aging, oxidative stress, metabolic alteration, and enhanced activation of myeloid cells in the lungs of old mice. The enhanced inflammatory signaling in ALI of old mice was also reduced by SCFA-treatment. In summary, the study provides new evidence that SCFAs play a beneficial role in the gut-lung axis of the aging organism by reducing pulmonary inflamm-aging and ameliorating enhanced severity of ALI in old mice.
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Affiliation(s)
- Christina B Hildebrand
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Rita Lichatz
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany
| | - Andreas Pich
- Institute of Toxicology, Core Facility Proteomics, Hannover Medical School, Germany
| | - Christian Mühlfeld
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Sabrina Woltemate
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Marius Vital
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Christina Brandenberger
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany.,Institute of Functional Anatomy, Charité - Universitätsmedizin, Berlin, Germany
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12
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Tain YL, Hou CY, Chang-Chien GP, Lin S, Hsu CN. Resveratrol Butyrate Ester Supplementation Blunts the Development of Offspring Hypertension in a Maternal Di-2-ethylhexyl Phthalate Exposure Rat Model. Nutrients 2023; 15. [PMID: 36771404 DOI: 10.3390/nu15030697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/24/2023] [Accepted: 01/28/2023] [Indexed: 01/31/2023] Open
Abstract
Resveratrol (REV) is a plant polyphenol with a plethora of beneficial properties. We previously enhanced the efficacy of REV via esterification of REV with butyrate to form resveratrol butyrate ester (RBE). Compared with REV, RBE exhibits higher bioavailability and better antioxidant effects. Hypertension can originate in early life because of maternal toxic chemical exposure. This study aims to examine the effectiveness of RBE in the protection of offspring hypertension induced by maternal di-2-ethylhexylphthalate (DEHP) exposure and to explore the underlying mechanisms. DEHP (10 mg/kg/day) was used as oral gavage to pregnant rats during gestation and lactation. The control group received the vehicle. Three groups of DEHP-exposed dams received REV (6.67 mg/kg/day), or low-dose (3.33 mg/kg/day) or high-dose (6.67 mg/kg/day) RBE in drinking water during gestation and lactation. Perinatal DEHP exposure resulted in hypertension and bodyweight gain in adult male offspring, which was prevented by high-dose RBE. REV supplementation attenuated DEHP exposure-induced increases in blood pressure but not bodyweight. High-dose RBE decreased renal oxidative damage, increased plasma butyrate concentrations, and altered short chain fatty acid receptor (SCFA) expression. Low-dose RBE treatment reduced downstream mediators of the acryl hydrocarbon receptor (AHR) signaling pathway. Moreover, DEHP exposure, REV and RBE treatment differentially shaped the offspring's gut microbiota. In particular, high-dose RBE increased the abundance of the genus Duncaniella. The beneficial effects of RBE treatment were related to reducing oxidative damage, increasing plasma butyrate concentrations, downregulating SCFA receptor expression, antagonizing AHR signaling, and altering the gut microbiota. This study provides the first evidence of RBE as a novel plant polyphenol bioproduct targeting the oxidative stress and gut microbiota to protect against maternal DEHP exposure-primed offspring hypertension.
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Fourati S, Dumay A, Roy M, Willemetz A, Ribeiro-Parenti L, Mauras A, Mayeur C, Thomas M, Kapel N, Joly F, Le Gall M, Bado A, Le Beyec J. Fecal microbiota transplantation in a rodent model of short bowel syndrome: A therapeutic approach? Front Cell Infect Microbiol 2023; 13:1023441. [PMID: 36936775 PMCID: PMC10020656 DOI: 10.3389/fcimb.2023.1023441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 02/03/2023] [Indexed: 03/06/2023] Open
Abstract
Extensive intestinal resection leads to Short Bowel Syndrome (SBS), the main cause of chronic intestinal failure. Colon preservation is crucial for spontaneous adaptation, to improve absorption and reduce parenteral nutrition dependence. Fecal microbiota transplantation (FMT), a promising approach in pathologies with dysbiosis as the one observed in SBS patients, was assessed in SBS rats with jejuno-colonic anastomosis. The evolution of weight and food intake, the lenght of intestinal villi and crypts and the composition of fecal microbiota of Sham and SBS rats, transplanted or not with high fat diet rat microbiota, were analyzed. All SBS rats lost weight, increased their food intake and exhibited jejunal and colonic hyperplasia. Microbiota composition of SBS rats, transplanted or not, was largely enriched with Lactobacillaceae, and α- and β-diversity were significantly different from Sham. The FMT altered microbiota composition and α- and β-diversity in Sham but not SBS rats. FMT from high fat diet rats was successfully engrafted in Sham, but failed to take hold in SBS rats, probably because of the specific luminal environment in colon of SBS subjects favoring aero-tolerant over anaerobic bacteria. Finally, the level of food intake in SBS rats was positively correlated with their Lactobacillaceae abundance. Microbiota transfer must be optimized and adapted to this specific SBS environment.
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Affiliation(s)
- Salma Fourati
- UMR-S1149, Centre de recherche sur l’inflammation, INSERM, Universite Paris Cite, Paris, France
- Sorbonne Université, AP-HP, Hôpital de la Pitié‐Salpêtrière‐Charles Foix, Service de Biochimie Endocrinienne et Oncologique, Paris, France
- Paris Center for Microbiome Medicine, Federation Hospitalo-Universitaire, Paris, France
| | - Anne Dumay
- UMR-S1149, Centre de recherche sur l’inflammation, INSERM, Universite Paris Cite, Paris, France
| | - Maryline Roy
- UMR-S1149, Centre de recherche sur l’inflammation, INSERM, Universite Paris Cite, Paris, France
| | - Alexandra Willemetz
- UMR-S1149, Centre de recherche sur l’inflammation, INSERM, Universite Paris Cite, Paris, France
| | - Lara Ribeiro-Parenti
- UMR-S1149, Centre de recherche sur l’inflammation, INSERM, Universite Paris Cite, Paris, France
- AP-HP, Hôpital Bichat -Claude Bernard, Service de chirurgie Générale OEsogastrique et Bariatrique, Paris, France
| | - Aurélie Mauras
- Paris Center for Microbiome Medicine, Federation Hospitalo-Universitaire, Paris, France
- UMR1319 - Micalis Institute, Institut National de Recherche pour l’Agriculture, l’alimentation et l’environnement (INRAE), AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Camille Mayeur
- Paris Center for Microbiome Medicine, Federation Hospitalo-Universitaire, Paris, France
- UMR1319 - Micalis Institute, Institut National de Recherche pour l’Agriculture, l’alimentation et l’environnement (INRAE), AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Muriel Thomas
- Paris Center for Microbiome Medicine, Federation Hospitalo-Universitaire, Paris, France
- UMR1319 - Micalis Institute, Institut National de Recherche pour l’Agriculture, l’alimentation et l’environnement (INRAE), AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Nathalie Kapel
- Paris Center for Microbiome Medicine, Federation Hospitalo-Universitaire, Paris, France
- UMR-S 1139, INSERM, Universite Paris Cite, Paris, France
- AP-HP, Hôpital de la Pitié‐Salpêtrière‐Charles Foix, Service de Coprologie fonctionnelle, Paris, France
| | - Francisca Joly
- UMR-S1149, Centre de recherche sur l’inflammation, INSERM, Universite Paris Cite, Paris, France
- Department of gastroenterology, IBD and nutrition Support, AP‐HP, CRMR MarDi, Hôpital Beaujon, Clichy, France
| | - Maude Le Gall
- UMR-S1149, Centre de recherche sur l’inflammation, INSERM, Universite Paris Cite, Paris, France
| | - André Bado
- UMR-S1149, Centre de recherche sur l’inflammation, INSERM, Universite Paris Cite, Paris, France
| | - Johanne Le Beyec
- UMR-S1149, Centre de recherche sur l’inflammation, INSERM, Universite Paris Cite, Paris, France
- Sorbonne Université, AP-HP, Hôpital de la Pitié‐Salpêtrière‐Charles Foix, Service de Biochimie Endocrinienne et Oncologique, Paris, France
- Paris Center for Microbiome Medicine, Federation Hospitalo-Universitaire, Paris, France
- *Correspondence: Johanne Le Beyec, ;;
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Yadikar N, Ahmet A, Zhu J, Bao X, Yang X, Han H, Rozi P. Exploring the mechanism of citric acid for treating glucose metabolism disorder induced by hyperlipidemia. J Food Biochem 2022; 46:e14404. [PMID: 36125852 DOI: 10.1111/jfbc.14404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 07/25/2022] [Accepted: 08/18/2022] [Indexed: 01/13/2023]
Abstract
Citric acid is a crucial organic in our daily life. The effect and mechanism of citric acid on glucose metabolism disorder induced by hyperlipidemia were explored by hyperlipidemic rat models which were established and treated with Xuezhikang and citric acid for 40 days. The results showed that citric acid significantly decreased liver index and reduced levels of triglyceride, total cholesterol and low-density lipoprotein cholesterol, while increasing high-density lipoprotein cholesterol. And citric acid observably decreased blood glucose and insulin resistance index, as well as increasing insulin sensitivity. Meanwhile, citric acid dramatically down-regulated mRNA and protein expression levels of glucose-6-phosphatase (G-6-Pase) (p < .01) and up-regulated those of glucose transporter 4 (GLUT-4) (p < .01). And significantly increased the contents of acetic, propionic and butyric acids (p < .01). These findings suggest that citric acid can regulate blood lipid levels in hyperlipidemic rats, reduce the resistance induced by hyperlipidemia, and improve insulin sensitivity. PRACTICAL APPLICATIONS: These findings suggest that citric acid can regulate blood lipid levels in hyperlipidemic rats, reduce the resistance induced by hyperlipidemia, and improve insulin sensitivity. and provide a theoretical basis for the application of citric acid in diseases related to glucose metabolism disorders.
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Affiliation(s)
- Nigary Yadikar
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, People's Republic of China
| | - Aygul Ahmet
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, People's Republic of China
| | - Jinfang Zhu
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, People's Republic of China
| | - Xiaowei Bao
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, People's Republic of China
| | - Xiaojun Yang
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, People's Republic of China
| | - Haixia Han
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, People's Republic of China
| | - Parhat Rozi
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, People's Republic of China
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15
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Wu Y, Li Y, Luo Y, Zhou Y, Wen J, Chen L, Liang X, Wu T, Tan C, Liu Y. Gut microbiome and metabolites: The potential key roles in pulmonary fibrosis. Front Microbiol 2022; 13:943791. [PMID: 36274689 PMCID: PMC9582946 DOI: 10.3389/fmicb.2022.943791] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
There are a wide variety of microbiomes in the human body, most of which exist in the gastrointestinal tract. Microbiomes and metabolites interact with the host to influence health. Rapid progress has been made in the study of its relationship with abenteric organs, especially lung diseases, and the concept the of "gut-lung axis" has emerged. In recent years, with the in-depth study of the "gut-lung axis," it has been found that changes of the gut microbiome and metabolites are related to fibrotic interstitial lung disease. Understanding their effects on pulmonary fibrosis is expected to provide new possibilities for the prevention, diagnosis and even treatment of pulmonary fibrosis. In this review, we focused on fibrotic interstitial lung disease, summarized the changes the gut microbiome and several metabolites of the gut microbiome in different types of pulmonary fibrosis, and discussed their contributions to the occurrence and development of pulmonary fibrosis.
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Affiliation(s)
- Yinlan Wu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Chengdu, China
| | - Yanhong Li
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Chengdu, China
| | - Yubin Luo
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Chengdu, China
| | - Yu Zhou
- Department of Respiratory and Critical Care Medicine, Chengdu First People’s Hospital, Chengdu, China
| | - Ji Wen
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Chengdu, China
| | - Lu Chen
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Chengdu, China
| | - Xiuping Liang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Chengdu, China
| | - Tong Wu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Chengdu, China
| | - Chunyu Tan
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Chengdu, China,*Correspondence: Chunyu Tan,
| | - Yi Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Chengdu, China,Yi Liu,
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16
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Sasaki M, Schwab C, Ramirez Garcia A, Li Q, Ferstl R, Bersuch E, Akdis CA, Lauener R, Frei R, Roduit C. The abundance of Ruminococcus bromii is associated with faecal butyrate levels and atopic dermatitis in infancy. Allergy 2022; 77:3629-3640. [PMID: 35917214 PMCID: PMC10087690 DOI: 10.1111/all.15440] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND Impaired microbial development and decreased levels of short chain fatty acids, particularly butyrate, is suggested to have a role in the development of atopic dermatitis (AD). METHODS Faecal microbiota composition, abundance of selected bacterial groups and fermentation metabolites were compared at 90, 180 and 360 days of life between 27 children who developed AD by age one (AD group), and 39 controls (non-AD group) among the CARE (Childhood AlleRgy, nutrition and Environment) study cohort. RESULTS Diversity within the Firmicutes and Bacteroidetes phylum in the faecal microbiota was lower in the AD group compared to the non-AD group. Longitudinal analysis showed multiple amplicon sequence variants (ASV) within the same bacterial family to be differentially abundant. Namely, Ruminococcus bromii, a keystone primary starch degrader, and Akkermansia muciniphila, a mucin-utilizer, had lower abundance among the AD group. Children with AD were less likely to have high levels of faecal butyrate at 360 days compared to those without AD (11.5% vs 34.2%). At 360 days, children with high abundance of R. bromii had higher level of butyrate as well as lower proportion of children with AD compared to children with low abundance of R. bromii (11.1-12.5% vs 44.4-52.5%), which was independent of the abundance of the major butyrate producers. CONCLUSION Our results suggested that R. bromii and other primary degraders might play an important role in the differences in microbial cross-feeding and metabolite formation between children with and without AD, which may influence the risk of developing the disease.
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Affiliation(s)
- Mari Sasaki
- University Children's Hospital ZürichZürichSwitzerland
| | - Clarissa Schwab
- Department of Biological and Chemical EngineeringAarhus UniversityAarhusDenmark
- Laboratory of Food BiotechnologyInstitute of Food, Nutrition and Health, ETH ZürichZürichSwitzerland
| | - Alejandro Ramirez Garcia
- Laboratory of Food BiotechnologyInstitute of Food, Nutrition and Health, ETH ZürichZürichSwitzerland
| | - Qing Li
- Department of Biological and Chemical EngineeringAarhus UniversityAarhusDenmark
| | - Ruth Ferstl
- Christine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZürichDavosSwitzerland
| | - Eugen Bersuch
- Christine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
- Children's Hospital of Eastern SwitzerlandSt GallenSwitzerland
| | - Cezmi A. Akdis
- Christine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZürichDavosSwitzerland
| | - Roger Lauener
- Christine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
- Children's Hospital of Eastern SwitzerlandSt GallenSwitzerland
| | | | - Remo Frei
- Christine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
- Division of Respiratory Medicine, Department of Paediatrics, InselspitalUniversity of BernBernSwitzerland
| | - Caroline Roduit
- University Children's Hospital ZürichZürichSwitzerland
- Christine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
- Children's Hospital of Eastern SwitzerlandSt GallenSwitzerland
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17
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Correction: The effects of myeloablative or non-myeloablative total body irradiations on intestinal tract in mice. Biosci Rep 2022; 42:BSR-2020-2993_COR. [PMID: 35856572 DOI: 10.1042/BSR-2020-2993_COR] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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18
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Schiweck C, Edwin Thanarajah S, Aichholzer M, Matura S, Reif A, Vrieze E, Weigert A, Visekruna A. Regulation of CD4 + and CD8 + T Cell Biology by Short-Chain Fatty Acids and Its Relevance for Autoimmune Pathology. Int J Mol Sci 2022; 23:8272. [PMID: 35955407 PMCID: PMC9368239 DOI: 10.3390/ijms23158272] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 07/07/2022] [Indexed: 02/01/2023] Open
Abstract
The gut microbiota encodes a broad range of enzymes capable of synthetizing various metabolites, some of which are still uncharacterized. One well-known class of microbiota-derived metabolites are the short-chain fatty acids (SCFAs) such as acetate, propionate, butyrate and valerate. SCFAs have long been considered a mere waste product of bacterial metabolism. Novel results have challenged this long-held dogma, revealing a central role for microbe-derived SCFAs in gut microbiota-host interaction. SCFAs are bacterial signaling molecules that act directly on host T lymphocytes by reprogramming their metabolic activity and epigenetic status. They have an essential biological role in promoting differentiation of (intestinal) regulatory T cells and in production of the anti-inflammatory cytokine interleukin-10 (IL-10). These small molecules can also reach the circulation and modulate immune cell function in remote tissues. In experimental models of autoimmune and inflammatory diseases, such as inflammatory bowel disease, multiple sclerosis or diabetes, a strong therapeutic potential of SCFAs through the modulation of effector T cell function was observed. In this review, we discuss current research activities toward understanding a relevance of microbial SCFA for treating autoimmune and inflammatory pathologies from in vitro to human studies.
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Affiliation(s)
- Carmen Schiweck
- Department for Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt-Goethe University, 60528 Frankfurt, Germany; (S.E.T.); (M.A.); (S.M.); (A.R.)
| | - Sharmili Edwin Thanarajah
- Department for Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt-Goethe University, 60528 Frankfurt, Germany; (S.E.T.); (M.A.); (S.M.); (A.R.)
| | - Mareike Aichholzer
- Department for Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt-Goethe University, 60528 Frankfurt, Germany; (S.E.T.); (M.A.); (S.M.); (A.R.)
| | - Silke Matura
- Department for Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt-Goethe University, 60528 Frankfurt, Germany; (S.E.T.); (M.A.); (S.M.); (A.R.)
| | - Andreas Reif
- Department for Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt-Goethe University, 60528 Frankfurt, Germany; (S.E.T.); (M.A.); (S.M.); (A.R.)
| | - Elske Vrieze
- Department of Psychiatry and Neurosciences, UPC KU Leuven, Campus Gasthuisberg, KU Leuven, 3000 Leuven, Belgium;
| | - Andreas Weigert
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt/Main, 60590 Frankfurt, Germany;
| | - Alexander Visekruna
- Institute for Medical Microbiology and Hygiene, Philipps-University Marburg, 35043 Marburg, Germany;
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19
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Huart J, Cirillo A, Saint-Remy A, Krzesinski JM, de Tullio P, Jouret F. The faecal abundance of short chain fatty acids is increased in men with a non-dipping blood pressure profile. Acta Cardiol 2022; 77:307-310. [PMID: 33787470 DOI: 10.1080/00015385.2021.1901020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND AND AIMS Gut microbiota (GM) has been involved in the pathophysiology of hypertension (HT), notably via short chain fatty acids (SCFAs). Among the clinical manifestations of HT, the absence of a significant drop in night-time blood pressure (BP) (also known as the non-dipping BP profile) has been associated with poor renal and cardiovascular outcomes. The putative link between GM-derived metabolites and BP dipping status is still unknown. METHODS Male volunteers (n = 44) were prospectively subjected to 24-hour ambulatory blood pressure monitoring, stool sample collection and a medical questionnaire. Metabolomics analyses of stool samples were conducted using Nuclear Magnetic Resonance (NMR). RESULTS Higher amounts of acetate, butyrate and propionate were found in the stools of non-dippers (n = 12) versus dippers (n = 26) (p = 0.0252, p = 0.0468, and p = 0.0496, respectively; n = 38 in toto). NMR spectral data were not interpretable in 5 dippers and 1 non-dipper. A similar significant association was found when including only patients without anti-HT medications (p = 0.0414, p = 0.0108, and p = 0.0602, respectively; n = 21 in toto). A not significant trend was observed when focussing only on HT patients without anti-HT medications (p = 0.0556; n = 14 in toto). CONCLUSION Our pilot study highlights a putative link between GM-derived SCFAs and the BP dipping status, independently of the BP status itself or the anti-hypertensive medications.
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Affiliation(s)
- Justine Huart
- Division of Nephrology, University of Liège Hospital (ULiège CHU), ULiège, Liège, Belgium
- Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Laboratory of Translational Research in Nephrology (LTRN), ULiège, Liège, Belgium
| | - Arianna Cirillo
- Center for Interdisciplinary Research on Medicines (CIRM), Metabolomics group, ULiège, Liège, Belgium
| | - Annie Saint-Remy
- Division of Nephrology, University of Liège Hospital (ULiège CHU), ULiège, Liège, Belgium
| | - Jean-Marie Krzesinski
- Division of Nephrology, University of Liège Hospital (ULiège CHU), ULiège, Liège, Belgium
- Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Laboratory of Translational Research in Nephrology (LTRN), ULiège, Liège, Belgium
| | - Pascal de Tullio
- Center for Interdisciplinary Research on Medicines (CIRM), Metabolomics group, ULiège, Liège, Belgium
| | - François Jouret
- Division of Nephrology, University of Liège Hospital (ULiège CHU), ULiège, Liège, Belgium
- Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Laboratory of Translational Research in Nephrology (LTRN), ULiège, Liège, Belgium
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Li Y, Zhao L, Hou M, Gao T, Sun J, Luo H, Wang F, Zhong F, Ma A, Cai J. Lactobacillus casei Improve Anti-Tuberculosis Drugs-Induced Intestinal Adverse Reactions in Rat by Modulating Gut Microbiota and Short-Chain Fatty Acids. Nutrients 2022; 14. [PMID: 35458230 DOI: 10.3390/nu14081668] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/05/2022] [Accepted: 04/14/2022] [Indexed: 02/07/2023] Open
Abstract
The adverse effects of anti-tuberculosis (TB) drugs in the intestines were related to alteration of the intestinal microbiota. However, there was less information about microbial metabolism on the adverse reactions. This study aimed to explore whether Lactobacillus casei could regulate gut microbiota or short-chain fatty acids (SCFAs) disorders to protect intestinal adverse reactions induced by isoniazid (H) and rifampicin (R). Male Wistar rats were given low and high doses of Lactobacillus casei two hours before daily administration of anti-TB drugs. After 42 days, colon tissue and blood were collected for analysis. The feces at two-week and six-week were collected to analyze the microbial composition and the content of SCFAs in colon contents was determined. Supplementation of Lactobacillus casei increased the proportion of intestinal goblet cells induced by H and R (p < 0.05). In addition, HR also reduced the level of mucin-2 (p < 0.05), and supplementation of Lactobacillus casei restored. After two weeks of HR intervention, a decrease in OTUs, diversity index, the abundance of Bacteroides, Akkermansia, and Blautia, and an increase of the abundance of Lacetospiraceae NK4A136 group and Rumencoccus UCG-005, were observed compared with the control group (p all < 0.05). These indices in Lactobacillus casei intervention groups were similar to the HR group. Six-week intervention resulted in a dramatic reduction of Lacetospiraceae NK4A136 group, butyric acid, valeric acid and hexanoic acid, while an increase of Bacteroides and Blautia (p all < 0.05). Pretreatment with Lactobacillus casei significantly increased the content of hexanoic acid compared with HR group (p < 0.05). Lactobacillus casei might prevent intestinal injury induced by anti-tuberculosis drugs by regulating gut microbiota and SCFAs metabolism.
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21
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Lu Y, Wan H, Wu Y, Yang J, Yu L, He Y, Wan H, Li C. Naoxintong Capsule Alternates Gut Microbiota and Prevents Hyperlipidemia in High-Fat-Diet Fed Rats. Front Pharmacol 2022; 13:843409. [PMID: 35387330 PMCID: PMC8978017 DOI: 10.3389/fphar.2022.843409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 02/18/2022] [Indexed: 12/19/2022] Open
Abstract
Background: Naoxintong Capsule (NXT) is a formulated Traditional Chinese Medicine (TCM) widely applied in the treatment of cardiovascular and metabolic diseases, most of which are closely related to hyperlipidemia as a major risk factor. Given the current limited understandings to the role of gut microbiota in the lipid-lowering effect of NXT and other TCM products, this study investigated the regulation of gut microbiota and lipid metabolism by NXT, and their potential relationship. Methods: The chemical components of NXT were firstly analyzed with HPLC-MS method. In high fat diet (HFD)-fed rat models, as well as normal rats as control, the histopathological and biochemical changes of serum and liver were examined, including total cholesterol (TC), triglyceride (TG), low density lipoprotein cholesterol (LDL-C) and high density lipoprotein cholesterol (HDL-C). In addition, the gut microbiota community was analyzed using 16S rRNA sequencing technique, the fecal levels of gut microbiota related metabolites, including bile acids (BAs) and short chain fatty acids (SCFAs) were determined with HPLC-MS. The correlations of the clinical indicators and gut microbiota related indicators were then investigated statistically. Results: The results showed that NXT exerted potential preventive effect on hyperlipidemia. Specifically, NXT significantly reduced the body weight, TC, TG and LDL-C in serum, increased HDL-C in serum, reduced the TC and TG in liver, as well as protected liver. The body weight, serum lipid levels and liver function were all significantly alleviated. The gut microbiota of the HFD-fed rats was reconstituted with supplementation of NXT. The fecal levels of gut microbiota related metabolites, including BAs and SCFAs were also altered. The correlation between the gut microbiota and clinical/metabolomic parameters was then studied. As the result, the amount of propionic aicd, Firmicutes/Bacteroidetes ratio (F/B) and the relative abundance of Collinsella in feces are the most possibly potential therapeutic biomarkers of NXT. Conclusion: NXT was effective in regulation of gut microbiota and prevention of hyperlipidemia in HFD fed rats. The present work might provide novel insights into the anti-hyperlipidemia effect of TCM and afford new scientific evidence for clinical application of TCM.
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Affiliation(s)
- Yihang Lu
- Key Laboratory of TCM Encephalopathy of Zhejiang Province, Zhejiang Chinese Medical University, Hangzhou, China
| | - Haofang Wan
- Key Laboratory of TCM Encephalopathy of Zhejiang Province, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yujia Wu
- Key Laboratory of TCM Encephalopathy of Zhejiang Province, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiehong Yang
- Key Laboratory of TCM Encephalopathy of Zhejiang Province, Zhejiang Chinese Medical University, Hangzhou, China
| | - Li Yu
- Key Laboratory of TCM Encephalopathy of Zhejiang Province, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yu He
- Key Laboratory of TCM Encephalopathy of Zhejiang Province, Zhejiang Chinese Medical University, Hangzhou, China
| | - Haitong Wan
- Key Laboratory of TCM Encephalopathy of Zhejiang Province, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chang Li
- Key Laboratory of TCM Encephalopathy of Zhejiang Province, Zhejiang Chinese Medical University, Hangzhou, China
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22
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Hsu CN, Yu HR, Chan JYH, Wu KLH, Lee WC, Tain YL. The Impact of Gut Microbiome on Maternal Fructose Intake-Induced Developmental Programming of Adult Disease. Nutrients 2022; 14:nu14051031. [PMID: 35268005 PMCID: PMC8912426 DOI: 10.3390/nu14051031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/24/2022] [Accepted: 02/26/2022] [Indexed: 12/11/2022] Open
Abstract
Excessive or insufficient maternal nutrition can influence fetal development and the susceptibility of offspring to adult disease. As eating a fructose-rich diet is becoming more common, the effects of maternal fructose intake on offspring health is of increasing relevance. The gut is required to process fructose, and a high-fructose diet can alter the gut microbiome, resulting in gut dysbiosis and metabolic disorders. Current evidence from animal models has revealed that maternal fructose consumption causes various components of metabolic syndrome in adult offspring, while little is known about how gut microbiome is implicated in fructose-induced developmental programming and the consequential risks for developing chronic disease in offspring. This review will first summarize the current evidence supporting the link between fructose and developmental programming of adult diseases. This will be followed by presenting how gut microbiota links to common mechanisms underlying fructose-induced developmental programming. We also provide an overview of the reprogramming effects of gut microbiota-targeted therapy on fructose-induced developmental programming and how this approach may prevent adult-onset disease. Using gut microbiota-targeted therapy to prevent maternal fructose diet-induced developmental programming, we have the potential to mitigate the global burden of fructose-related disorders.
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Affiliation(s)
- Chien-Ning Hsu
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan;
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Hong-Ren Yu
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan;
| | - Julie Y. H. Chan
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan; (J.Y.H.C.); (K.L.H.W.)
| | - Kay L. H. Wu
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan; (J.Y.H.C.); (K.L.H.W.)
| | - Wei-Chia Lee
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan;
| | - You-Lin Tain
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan;
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan; (J.Y.H.C.); (K.L.H.W.)
- Correspondence: ; Tel.: +886-975-056-995; Fax: +886-7733-8009
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23
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Stoeva MK, Garcia-So J, Justice N, Myers J, Tyagi S, Nemchek M, McMurdie PJ, Kolterman O, Eid J. Butyrate-producing human gut symbiont, Clostridium butyricum, and its role in health and disease. Gut Microbes 2022; 13:1-28. [PMID: 33874858 PMCID: PMC8078720 DOI: 10.1080/19490976.2021.1907272] [Citation(s) in RCA: 124] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Clostridium butyricum is a butyrate-producing human gut symbiont that has been safely used as a probiotic for decades. C. butyricum strains have been investigated for potential protective or ameliorative effects in a wide range of human diseases, including gut-acquired infection, intestinal injury, irritable bowel syndrome, inflammatory bowel disease, neurodegenerative disease, metabolic disease, and colorectal cancer. In this review we summarize the studies on C. butyricum supplementation with special attention to proposed mechanisms for the associated health benefits and the supporting experimental evidence. These mechanisms center on molecular signals (especially butyrate) as well as immunological signals in the digestive system that cascade well beyond the gut to the liver, adipose tissue, brain, and more. The safety of probiotic C. butyricum strains appears well-established. We identify areas where additional human randomized controlled trials would provide valuable further data related to the strains' utility as an intervention.
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Affiliation(s)
- Magdalena K. Stoeva
- R&D and Clinical departments, Pendulum Therapeutics, Inc, San Francisco, CA, USA
| | - Jeewon Garcia-So
- R&D and Clinical departments, Pendulum Therapeutics, Inc, San Francisco, CA, USA
| | - Nicholas Justice
- R&D and Clinical departments, Pendulum Therapeutics, Inc, San Francisco, CA, USA
| | - Julia Myers
- R&D and Clinical departments, Pendulum Therapeutics, Inc, San Francisco, CA, USA
| | - Surabhi Tyagi
- R&D and Clinical departments, Pendulum Therapeutics, Inc, San Francisco, CA, USA
| | - Madeleine Nemchek
- R&D and Clinical departments, Pendulum Therapeutics, Inc, San Francisco, CA, USA
| | - Paul J. McMurdie
- R&D and Clinical departments, Pendulum Therapeutics, Inc, San Francisco, CA, USA
| | - Orville Kolterman
- R&D and Clinical departments, Pendulum Therapeutics, Inc, San Francisco, CA, USA
| | - John Eid
- R&D and Clinical departments, Pendulum Therapeutics, Inc, San Francisco, CA, USA,CONTACT John Eid Pendulum Therapeutics, Inc, San Francisco, California, USA
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24
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Abstract
Dyslipidemia, as a common metabolic disease, could cause atherosclerosis, coronary heart disease, stroke and other cardio-cerebrovascular diseases. It is mainly caused by the interaction of genetic and environmental factors and its incidence has increased for several years. A large number of studies have shown that gut microbiota disorder is related to the development of dyslipidemia closely. Especially its metabolites such as short-chain fatty acids, bile acids and trimethylamine N-oxide affect dyslipidemia by regulating cholesterol balance. In this paper, we systematically reviewed the literature and used knowledge graphs to analyze the research trends and characteristics of dyslipidemia mediated by gut microbiota, revealing that the interaction between diet and gut microbiota leads to dyslipidemia as one of the main factors. In addition, starting from the destruction of the dynamic balance between gut microbiota and host caused by dyslipidemia, we systematically summarize the molecular mechanism of gut microbiota regulating dyslipidemia and provide a theoretical basis for the treatment of dyslipidemia by targeting the gut microbiota.
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Affiliation(s)
- Lirong Lei
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China
| | - Ning Zhao
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China
| | - Lei Zhang
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China
| | - Jiamei Chen
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China
| | - Xiaomin Liu
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China
| | - Shenghua Piao
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China
- *Correspondence: Shenghua Piao,
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25
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Fink H, Maihöfer T, Bender J, Schulat J. Indole as a new tentative marker in exhaled breath for non-invasive blood glucose monitoring of diabetic subjects. J Breath Res 2021; 16. [PMID: 34942609 DOI: 10.1088/1752-7163/ac4610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/23/2021] [Indexed: 11/12/2022]
Abstract
Blood glucose monitoring (BGM) is the most important part of diabetes management. In classical BGM, glucose measurement by test strips involves invasive finger pricking. We present results of a clinical study that focused on a non-invasive approach based on volatile organic compounds (VOCs) in exhaled breath. Main objective was the discovery of markers for prediction of blood glucose levels (BGL) in diabetic patients. Exhaled breath was measured repeatedly in 60 diabetic patients (30 type 1, 30 type 2) in fasting state and after a standardized meal. Proton Transfer Reaction Time of Flight Mass Spectrometry (PTR-ToF-MS) was used to sample breath every 15 minutes for a total of six hours. BGLs were tested in parallel via BGM test strips. VOC signals were plotted against glucose trends for each subject to identify correlations. Exhaled indole (a bacterial metabolite of tryptophan) showed significant mean correlation to BGL (with negative trend) and significant individual correlation in 36 patients. The type of diabetes did not affect this result. Additional experiments of one healthy male subject by ingestion of lactulose and 13C-labeled glucose (n=3) revealed that exhaled indole does not directly originate from food digestion by intestinal microbiota. As indole has been linked to human glucose metabolism, it might be a tentative marker in breath for non-invasive BGM. Clinical studies with greater diversity are required for confirmation of such results and further investigation of metabolic pathways.
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Affiliation(s)
- Herbert Fink
- Chemical and Instrumental Analytics, Roche Diabetes Care, Sandhofer Str 116, Mannheim, 68305, GERMANY
| | - Tim Maihöfer
- Chemical and Instrumental Analytics, Roche Diabetes Care, Sandhofer Str 116, Mannheim, 68305, GERMANY
| | - Jeffrey Bender
- Chemical & Instrumental Analytics, Roche Diabetes Care Incorporated, 9115 Hague Rd, PO Box 50547, Indianapolis, Indiana, IN 46256-0457, UNITED STATES
| | - Jochen Schulat
- Chemical and Instrumental Analytics, Roche Diabetes Care, Sandhofer Str 116, Mannheim, 68305, GERMANY
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26
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Cui M, Wang Y, Elango J, Wu J, Liu K, Jin Y. Cereus sinensis Polysaccharide Alleviates Antibiotic-Associated Diarrhea Based on Modulating the Gut Microbiota in C57BL/6 Mice. Front Nutr 2021; 8:751992. [PMID: 34966769 PMCID: PMC8711652 DOI: 10.3389/fnut.2021.751992] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/19/2021] [Indexed: 11/25/2022] Open
Abstract
The present study investigated whether the purified polysaccharide from Cereus sinensis (CSP-1) had beneficial effects on mice with antibiotic-associated diarrhea (AAD). The effects of CSP-1 on gut microbiota were evaluated by 16S rRNA high-throughput sequencing. Results showed that CSP-1 increased the diversity and richness of gut microbiota. CSP-1 enriched Phasecolarctobacterium, Bifidobacterium and reduced the abundance of Parabacteroides, Sutterella, Coprobacillus to near normal levels, modifying the gut microbial community. Microbial metabolites were further analyzed by gas chromatography-mass spectrometry (GC-MS). Results indicated CSP-1 promoted the production of various short-chain fatty acids (SCFAs) and significantly improved intestinal microflora dysfunction in AAD mice. In addition, enzyme linked immunosorbent assay and hematoxylin-eosin staining were used to assess the effects of CSP-1 on cytokine levels and intestinal tissue in AAD mice. Results demonstrated that CSP-1 inhibited the secretion of interleukin-2 (IL-2), interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) and improved the intestinal barrier. Correspondingly, the daily records also showed that CSP-1 promoted recovery of diarrhea status score, water intake and body weight in mice with AAD. In short, CSP-1 helped alleviate AAD by regulating the inflammatory cytokines, altering the composition and richness of intestinal flora, promoting the production of SCFAs, improving the intestinal barrier as well as reversing the dysregulated microbiota function.
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Affiliation(s)
- Mingxiao Cui
- Department of Biopharmaceutics, College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Yu Wang
- Department of Biopharmaceutics, College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Jeevithan Elango
- Department of Biopharmaceutics, College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Junwen Wu
- Department of Biopharmaceutics, College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Kehai Liu
- Department of Biopharmaceutics, College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- National R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Shanghai, China
| | - Yinzhe Jin
- Department of Biopharmaceutics, College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- National R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Shanghai, China
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27
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Deng M, Li X, Li W, Gong J, Zhang X, Ge S, Zhao L. Short-Chain Fatty Acids Alleviate Hepatocyte Apoptosis Induced by Gut-Derived Protein-Bound Uremic Toxins. Front Nutr 2021; 8:756730. [PMID: 34712690 PMCID: PMC8545797 DOI: 10.3389/fnut.2021.756730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 09/07/2021] [Indexed: 01/03/2023] Open
Abstract
Chronic kidney disease (CKD) is characterized with the influx of uremic toxins, which impairs the gut microbiome by decreasing beneficial bacteria that produce short-chain fatty acids (SCFAs) and increasing harmful bacteria that produce gut-derived protein-bound uremic toxins (PBUTs). This study aimed to assess the proapoptotic effects of three major gut-derived PBUTs in hepatocytes, and the effects of SCFAs on apoptosis phenotype in vitro. HepG2 (human liver carcinoma cells) and THLE-2 (immortalized human normal liver cells) cell line were incubated with 0, 2, 20, 200, 2000 μM p-cresol sulfate (PCS), indoxyl sulfate (IS), and hippuric acid (HA), respectively, for 24 h. Flow cytometry analysis indicated that three uremic toxins induced varying degrees of apoptosis in hepatocytes and HA represented the highest efficacy. These phenotypes were further confirmed by western blot of apoptosis protein expression [Caspase-3, Caspase-9, B-cell lymphoma 2 (Bcl-2), and Bcl-2-associated X protein (Bax)]. Human normal hepatocytes (THLE-2) are more sensitive to PBUTs-induced apoptosis compared with human hepatoma cells (HepG2). Mechanistically, extracellular HA could enter hepatocytes, increase reactive oxygen species (ROS) generation, and decrease mitochondrial membrane potential dose-dependently in THLE-2 cells. Notably, coculture with SCFAs (acetate, propionate, butyrate) for 24 h significantly improved HA-induced apoptosis in THLE-2 cells, and propionate (500 μM) represented the highest efficacy. Propionate reduction of apoptosis was associated with improving mitochondria dysfunction and oxidative stress in a manner involving reducing Caspase-3 expression, ROS production, and increasing the Bcl-2/Bax level. As such, our studies validated PBUTs accumulation might be an important cause of liver dysfunction in patients with CKD, and supplementation of SCFAs might be a viable way to protect the liver for patients with CKD.
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Affiliation(s)
- Mingjuan Deng
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Xingqi Li
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Weiwei Li
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Jiahui Gong
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Xiaoying Zhang
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
| | - Shaoyang Ge
- Hebei Engineering Research Center of Animal Product, Sanhe, China
| | - Liang Zhao
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,Department of Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, China
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28
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Li W, Deng M, Gong J, Zhang X, Ge S, Zhao L. Sodium Acetate Inhibit TGF-β1-Induced Activation of Hepatic Stellate Cells by Restoring AMPK or c-Jun Signaling. Front Nutr 2021; 8:729583. [PMID: 34660662 PMCID: PMC8515000 DOI: 10.3389/fnut.2021.729583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/02/2021] [Indexed: 11/13/2022] Open
Abstract
Short-chain fatty acids (SCFAs) are crucial gut microbial metabolites that play a major role in the occurrence and development of hepatic fibrosis (HF). However, the effect of SCFAs on hepatic stellate cells (HSCs), the major pro-fibrogenic cells, is yet undefined. In this study, the effects of three major SCFAs (acetate, propionate, and butyrate) were assessed on the activation of HSCs. LX2 cells were activated with TGF-β1 and treated with sodium acetate (NaA), sodium propionate (NaP), or sodium butyrate (NaB). SCFA treatment significantly reduced the protein levels of α-SMA and the phosphorylation of Smad2 and decreased the mRNA expression of Acta2/Col1a1/Fn in cells compared to the TGF-β1 treatment. Among the three SCFAs, NaA revealed the best efficacy at alleviating TGF-β1-induced LX2 cell activation. Additionally, acetate accumulated in the cells, and G protein-coupled receptor (GPR) 43 silencing did not have any impact on the inhibition of LX2 cell activation by NaA. These findings indicated that NaA enters into the cells to inhibit LX2 cell activation independent of GPR43. The results of phosphokinase array kit and Western blot indicated that NaA increased the AMP-activated protein kinase (AMPK) activation and reduced the phosphorylation of c-Jun in cultured LX2 cells, and siRNA-peroxisome proliferator-activated receptor (PPAR) -γ abolished the inhibitory effects of NaA against TGF-β1-induced LX2 cell activation. In conclusion, this study showed that NaA inhibited LX2 cell activation by activating the AMPK/PPARγ and blocking the c-Jun signaling pathways. Thus, SCFAs might represent a novel and viable approach for alleviating HF.
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Affiliation(s)
- Weiwei Li
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Mingjuan Deng
- Department of Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, China
| | - Jiahui Gong
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Xiaoying Zhang
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
| | - Shaoyang Ge
- Hebei Engineering Research Center of Animal Product, Sanhe, China
| | - Liang Zhao
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,Department of Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, China
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Appunni S, Rubens M, Ramamoorthy V, Tonse R, Saxena A, McGranaghan P, Kaiser A, Kotecha R. Emerging Evidence on the Effects of Dietary Factors on the Gut Microbiome in Colorectal Cancer. Front Nutr 2021; 8:718389. [PMID: 34708063 PMCID: PMC8542705 DOI: 10.3389/fnut.2021.718389] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/13/2021] [Indexed: 12/22/2022] Open
Abstract
Dietary factors have important role in modulating the gut microbiome, which in-turn regulates the molecular events in colonic mucosa. The composition and resulting metabolism of the gut microbiome are decisive factors in colorectal cancer (CRC) tumorigenesis. Altered gut microbiome is associated with impaired immune response, and the release of carcinogenic or genotoxic substances which are the major microbiome-induced mechanisms implicated in CRC pathogenesis. Diets low in dietary fibers and phytomolecules as well as high in red meat are important dietary changes which predispose to CRC. Dietary fibers which reach the colon in an undigested form are further metabolized by the gut microbiome into enterocyte friendly metabolites such as short chain fatty acid (SCFA) which provide anti-inflammatory and anti-proliferative effects. Healthy microbiome supported by dietary fibers and phytomolecules could decrease cell proliferation by regulating the epigenetic events which activate proto-oncogenes and oncogenic pathways. Emerging evidence show that predominance of microbes such as Fusobacterium nucleatum can predispose the colonic mucosa to malignant transformation. Dietary and lifestyle modifications have been demonstrated to restrict the growth of potentially harmful opportunistic organisms. Synbiotics can protect the intestinal mucosa by improving immune response and decreasing the production of toxic metabolites, oxidative stress and cell proliferation. In this narrative review, we aim to update the emerging evidence on how diet could modulate the gut microbial composition and revive colonic epithelium. This review highlights the importance of healthy plant-based diet and related supplements in CRC prevention by improving the gut microbiome.
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Affiliation(s)
- Sandeep Appunni
- Government Medical College, Kozhikode, India
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Muni Rubens
- Office of Clinical Research, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, United States
| | | | - Raees Tonse
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, United States
| | - Anshul Saxena
- Baptist Health South Florida, Miami, FL, United States
- Department of Radiation Oncology, Florida International University, Miami, FL, United States
| | - Peter McGranaghan
- Office of Clinical Research, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, United States
| | - Adeel Kaiser
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, United States
- Department of Radiation Oncology, Florida International University, Miami, FL, United States
| | - Rupesh Kotecha
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, United States
- Department of Radiation Oncology, Florida International University, Miami, FL, United States
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Zhang X, Li N, Chen Q, Qin H. Fecal Microbiota Transplantation Modulates the Gut Flora Favoring Patients With Functional Constipation. Front Microbiol 2021; 12:700718. [PMID: 34690948 PMCID: PMC8529243 DOI: 10.3389/fmicb.2021.700718] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 08/23/2021] [Indexed: 12/14/2022] Open
Abstract
Intestinal dysmotility is common in many diseases and is correlated with gut microbiota dysbiosis and systemic inflammation. Functional constipation (FC) is the most typical manifestation of intestinal hypomotility and reduces patients' quality of life. Some studies have reported that fecal micriobiota transplantation (FMT) may be an effective and safe therapy for FC as it corrects intestinal dysbiosis. This study was conducted to evaluate how FMT remodels the gut microbiome and to determine a possible correlation between certain microbes and clinical symptoms in constipated individuals. Data were retrospectively collected on 18 patients who underwent FMT between January 1, 2019 and June 30, 2020. The fecal bacterial genome was detected by sequencing the V3-V4 hypervariable regions of the 16S rDNA gene. Fecal short chain fatty acids (SCFAs) were detected by gas chromatography-mass spectrometry, and serum inflammatory factor concentrations were detected via enzyme-linked immunosorbent assay. Comparing the changes in fecal microbiome compositions before and after FMT revealed a significant augmentation in the alpha diversity and increased abundances of some flora such as Clostridiales, Fusicatenibacter, and Paraprevotella. This was consistent with the patients experiencing relief from their clinical symptoms. Abundances of other flora, including Lachnoanaerobaculum, were decreased, which might correlate with the severity of patients' constipation. Although no differences were found in SCFA production, the butyric acid concentration was correlated with both bacterial alterations and clinical symptoms. Serum IL-8 levels were significantly lower after FMT than at baseline, but IL-4, IL-6, IL-10, and IL-12p70 levels were not noticeably changed. This study showed how FMT regulates the intestinal microenvironment and affects systemic inflammation in constipated patients, providing direction for further research on the mechanisms of FMT. It also revealed potential microbial targets for precise intervention, which may bring new breakthroughs in treating constipation.
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Affiliation(s)
| | | | - Qiyi Chen
- Intestinal Microenvironment Treatment Center, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Huanlong Qin
- Intestinal Microenvironment Treatment Center, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
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Jin X, Jian Z, Chen X, Ma Y, Ma H, Liu Y, Gong L, Xiang L, Zhu S, Shu X, Qi S, Li H, Wang K. Short Chain Fatty Acids Prevent Glyoxylate-Induced Calcium Oxalate Stones by GPR43-Dependent Immunomodulatory Mechanism. Front Immunol 2021; 12:729382. [PMID: 34675921 PMCID: PMC8523925 DOI: 10.3389/fimmu.2021.729382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/20/2021] [Indexed: 02/05/2023] Open
Abstract
Calcium oxalate (CaOx) stones are the most common type of kidney stones and are associated with high recurrence, short chain fatty acids (SCFAs), and inflammation. However, it remains uncertain whether SCFAs affect the formation of CaOx stones through immunomodulation. We first performed mass cytometry (CyTOF) and RNA sequencing on kidney immune cells with glyoxylate-induced CaOx crystals (to elucidate the landscape of the associated immune cell population) and explored the role of SCFAs in renal CaOx stone formation through immunomodulation. We identified 29 distinct immune cell subtypes in kidneys with CaOx crystals, where CX3CR1+CD24- macrophages significantly decreased and GR1+ neutrophils significantly increased. In accordance with the CyTOF data, RNA sequencing showed that most genes involved were related to monocytes and neutrophils. SCFAs reduced kidney CaOx crystals by increasing the frequency of CX3CR1+CD24- macrophages and decreasing GR1+ neutrophil infiltration in kidneys with CaOx crystals, which was dependent on the gut microbiota. GPR43 knockdown by transduction with adeno-associated virus inhibited the alleviation of crystal formation and immunomodulatory effects in the kidney, due to SCFAs. Moreover, CX3CR1+CD24- macrophages regulated GR1+ neutrophils via GPR43. Our results demonstrated a unique trilateral relationship among SCFAs, immune cells, and the kidneys during CaOx formation. These findings suggest that future immunotherapies may be used to prevent kidney stones using SCFAs.
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Affiliation(s)
- Xi Jin
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
| | - Zhongyu Jian
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoting Chen
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
- Animal Experimental Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yucheng Ma
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
| | - Hongwen Ma
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
| | - Yu Liu
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
| | - Lina Gong
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
| | - Liyuan Xiang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
| | - Shiyu Zhu
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoling Shu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Shiqian Qi
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Li
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
| | - Kunjie Wang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China
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Hsu CN, Hou CY, Lee CT, Chang-Chien GP, Lin S, Tain YL. Maternal 3,3-Dimethyl-1-Butanol Therapy Protects Adult Male Rat Offspring against Hypertension Programmed by Perinatal TCDD Exposure. Nutrients 2021; 13:nu13093041. [PMID: 34578924 PMCID: PMC8467313 DOI: 10.3390/nu13093041] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 12/18/2022] Open
Abstract
Maternal exposure to environmental pollutants affects fetal development, which can result in hypertension in adulthood. Gut microbiota-derived metabolite trimethylamine (TMA), trimethylamine-N-oxide (TMAO), and short chain fatty acids (SCFAs) have been associated with hypertension. We tested a hypothesis that maternal 3,3-Dimethyl-1-butanol (DMB, a TMA inhibitor) therapy prevents 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure-induced hypertension in adult offspring relevant to alterations of gut microbiota-derived metabolites, the mediation of aryl hydrocarbon receptor (AHR) signaling, and the renin-angiotensin system (RAS). Pregnant Sprague-Dawley rats were given weekly oral dose of TCDD 200 ng/kg for four doses (T), 1% DMB in drinking water (D), TCDD + DMB (TD), or vehicle (C) in pregnancy and lactation periods. Male progeny (n = 8/group) were sacrificed at the age of 12 weeks. Perinatal TCDD exposure caused hypertension in adult male offspring coinciding with reduced α-diversity, increased the Firmicutes to Bacteroidetes ratio, less abundant beneficial bacteria, impaired SCFA receptors' expression, the activation of AHR signaling, and the aberrant activation of the RAS. Treatment with DMB during pregnancy and lactation rescued hypertension induced by perinatal TCDD exposure. This was accompanied by reshaping gut microbiota, mediating TMA-TMAO metabolic pathway, increasing acetic acid and its receptors, and restoring the AHR and RAS pathway. Our data provide new insights into the therapeutic potential of DMB, a microbiome-based metabolite treatment, for the prevention of hypertension of developmental origins.
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Affiliation(s)
- Chien-Ning Hsu
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan;
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chih-Yao Hou
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung 811, Taiwan;
| | - Chien-Te Lee
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan;
| | - Guo-Ping Chang-Chien
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung 833, Taiwan; (G.-P.C.-C.); (S.L.)
- Super Micro Mass Research and Technology Center, Cheng Shiu University, Kaohsiung 833, Taiwan
| | - Sufan Lin
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung 833, Taiwan; (G.-P.C.-C.); (S.L.)
- Super Micro Mass Research and Technology Center, Cheng Shiu University, Kaohsiung 833, Taiwan
| | - You-Lin Tain
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan
- Correspondence: ; Tel.: +886-975-056-995; Fax: +886-7733-8009
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Kanda N, Hoashi T, Saeki H. The Defect in Regulatory T Cells in Psoriasis and Therapeutic Approaches. J Clin Med 2021; 10:3880. [PMID: 34501328 DOI: 10.3390/jcm10173880] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 08/26/2021] [Indexed: 12/11/2022] Open
Abstract
Psoriasis is a chronic inflammatory skin disease characterized by accelerated tumor necrosis factor-α/interleukin (IL)-23/IL-17 axis. Patients with psoriasis manifest functional defects in CD4+CD25+ forkhead box protein 3 (Foxp3)+ regulatory T cells (Tregs), which suppress the excess immune response and mediate homeostasis. Defects in Tregs contribute to the pathogenesis of psoriasis and may attribute to enhanced inhibition and/or impaired stimulation of Tregs. IL-23 induces the conversion of Tregs into type 17 helper T (Th17) cells. IL-17A reduces transforming growth factor (TGF)-β1 production, Foxp3 expression, and suppresses Treg activity. Short-chain fatty acids (SCFAs), butyrate, propionate, and acetate are microbiota-derived fermentation products that promote Treg development and function by inducing Foxp3 expression or inducing dendritic cells or intestinal epithelial cells to produce retinoic acids or TGF-β1, respectively. The gut microbiome of patients with psoriasis revealed reduced SCFA-producing bacteria, Bacteroidetes, and Faecallibacterium, which may contribute to the defect in Tregs. Therapeutic agents currently used, viz., anti-IL-23p19 or anti-IL-17A antibodies, retinoids, vitamin D3, dimethyl fumarate, narrow-band ultraviolet B, or those under development for psoriasis, viz., signal transducer and activator of transcription 3 inhibitors, butyrate, histone deacetylase inhibitors, and probiotics/prebiotics restore the defected Tregs. Thus, restoration of Tregs is a promising therapeutic target for psoriasis.
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Morgan NK, Gomes GA, Kim JC. Comparing the efficacy of stimbiotic and a combination of xylanase and beta-glucanase, in broilers fed wheat-barley based diets with high or low AME. Poult Sci 2021; 100:101383. [PMID: 34438325 PMCID: PMC8383100 DOI: 10.1016/j.psj.2021.101383] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/30/2021] [Accepted: 07/04/2021] [Indexed: 11/25/2022] Open
Abstract
A stimbiotic is defined as a product that stimulates a fiber-degrading microbiome to increase fiber fermentability. The aim of this study was to examine if it is more advantageous to feed a stimbiotic (xylanase + xylo-oligosaccharides [STB]) or a combination of xylanase and beta-glucanase (Xyl + BG) to broilers fed wheat-barley based diets with differing AME levels. Cobb 500 broilers (n = 480, 80 birds per treatment) were fed 6 dietary treatments in a 2 × 3 factorial arrangement; 2 AME levels, ‘High’ or ‘Low’, which differed by 100 kcal ME/kg, and 3 additive supplementations, with no supplemental additives, STB or Xyl + BG. Diets were fed as 3 phases, starter (d 0–14), grower (d 14–21) and finisher (d 21–35). On bird age d 14, 21 and 35, total pen body weight and feed intake were determined, and feed conversion ratio corrected for mortality (cFCR) was calculated. On d 21 and d 35 ileal viscosity and beta-glucan content and caecal SCFA concentration were determined. Additive suplementation had no impact on cFCR in birds fed the low AME diet, but in birds fed the high AME diet the cFCR value was reduced in the presence of the additives (P = 0.001 and P = 0.015, at d 14–21 and d 21–35, respectively). At d 21, cecal SCFA concentration was consistently higher (P = 0.015), and ileal beta-glucan level lower (P = 0.002), in birds fed the diet supplemented with STB compared to those without additives. At d 35, ileal viscosity was lower in birds fed STB compared to those fed the diet without supplementation of additives, irrespective of diet AME level (P = 0.017). These results suggest that both STB and Xyl + BG ameliorate the antinutritive effects of the non-starch polysaccharides (NSP) present in wheat-barley based diets, resulting in improved bird performance. However, supplementation with STB induces a comparatively greater positive effect on NSP hydrolysis and SCFA production.
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Affiliation(s)
- N K Morgan
- Department of Animal Science, University of New England, Armidale, NSW 2350, Australia.
| | - G A Gomes
- AB Vista, Marlborough, Wiltshire SN48 4AN, UK
| | - J C Kim
- AB Vista, Marlborough, Wiltshire SN48 4AN, UK
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Abstract
Over the last 15 years there has been an accumulation of data supporting the concept of a gut-brain axis whereby dysbiosis of the gut microbiota can impact neurological function. Such dysbiosis has been suggested as a possible environmental exposure triggering multiple sclerosis (MS). Dysbiosis has been consistently shown to result in a reduction in short-chain fatty acid (SCFA) producing bacteria and a reduction in stool and plasma levels of propionate has been shown for MS patients independent of disease stage and in different geographies. A wealth of evidence supports the action of propionate on T-cell activity, resulting in decreased T-helper cell 1 (Th1) and T-helper cell 17 (Th17) numbers/activity and increased regulatory T cell (Treg cell) numbers/activity and an overall anti-inflammatory profile. These different T-cell populations play various roles in the pathophysiology of MS. A recent clinical study in MS patients demonstrated that supplementation of propionate reduces the annual relapse rate and slows disease progression. This review discusses this data and the relevant mechanistic background and discusses whether taming of the overactive immune system in MS is likely to allow easier bacterial and viral infection.
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Affiliation(s)
| | | | - Philip C Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.,NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
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Salvi PS, Cowles RA. Butyrate and the Intestinal Epithelium: Modulation of Proliferation and Inflammation in Homeostasis and Disease. Cells 2021; 10:1775. [PMID: 34359944 DOI: 10.3390/cells10071775] [Citation(s) in RCA: 132] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/29/2021] [Accepted: 07/06/2021] [Indexed: 12/12/2022] Open
Abstract
The microbial metabolite butyrate serves as a link between the intestinal microbiome and epithelium. The monocarboxylate transporters MCT1 and SMCT1 are the predominant means of butyrate transport from the intestinal lumen to epithelial cytoplasm, where the molecule undergoes rapid β-oxidation to generate cellular fuel. However, not all epithelial cells metabolize butyrate equally. Undifferentiated colonocytes, including neoplastic cells and intestinal stem cells at the epithelial crypt base preferentially utilize glucose over butyrate for cellular fuel. This divergent metabolic conditioning is central to the phenomenon known as “butyrate paradox”, in which butyrate induces contradictory effects on epithelial proliferation in undifferentiated and differentiated colonocytes. There is evidence that accumulation of butyrate in epithelial cells results in histone modification and altered transcriptional activation that halts cell cycle progression. This manifests in the apparent protective effect of butyrate against colonic neoplasia. A corollary to this process is butyrate-induced inhibition of intestinal stem cells. Yet, emerging research has illustrated that the evolution of the crypt, along with butyrate-producing bacteria in the intestine, serve to protect crypt base stem cells from butyrate’s anti-proliferative effects. Butyrate also regulates epithelial inflammation and tolerance to antigens, through production of anti-inflammatory cytokines and induction of tolerogenic dendritic cells. The role of butyrate in the pathogenesis and treatment of intestinal neoplasia, inflammatory bowel disease and malabsorptive states is evolving, and holds promise for the potential translation of butyrate’s cellular function into clinical therapies.
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Nguyen HT, Bedford MR, Wu SB, Morgan NK. Soluble non-starch polysaccharide modulates broiler gastrointestinal tract environment. Poult Sci 2021; 100:101183. [PMID: 34198096 DOI: 10.1016/j.psj.2021.101183] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/19/2021] [Accepted: 04/05/2021] [Indexed: 12/19/2022] Open
Abstract
The aim of this study was to evaluate the importance of considering dietary soluble non-starch polysaccharides (sNSP) when formulating broiler diets, due to their impact on the gastrointestinal tract environment. Cobb 500 broilers (n = 480, 80 birds per treatment) were fed either wheat- or corn-soybean meal-based diets formulated to contain either a high, medium or low sNSP content, resulting in 6 dietary treatments in a 2 × 3 factorial arrangement of treatments. On d14 and d 35 of age, pH of the gizzard, ileum and caeca, ileum viscosity, caecal short chain fatty acid (SCFA) concentration, and ileal and caecal microbiota profile were determined. Ileal viscosity at d 35 was greater in birds fed high sNSP compared to low sNSP (P = 0.022). At both d 14 and d 35, birds fed the wheat-based diet presented higher ileal viscosity (P < 0.001) and lower ileal pH (P = 0.027 and P < 0.001, respectively) compared to those fed the corn-based diet. At d 14, birds fed low sNSP exhibited higher caecal pH (P = 0.010) and propionic, isobutyric and valeric acid concentrations (P = 0.035, P = 0.007 and P = 0.011, respectively), and lower ileal Lactobacillus content (P = 0.043), compared to birds fed high sNSP. This effect was also seen for total SCFA (P = 0.017) and acetic acid (P = 0.005) concentrations in the caeca at d 14, but only in birds fed wheat-, not corn-, based diets. At d 35, total caecal SCFA concentration was greater in birds fed the wheat-based diet with high sNSP level compared to those fed the corn-based diet with high or low sNSP level (P = 0.028). In comparison to birds fed corn, birds fed wheat presented greater caecal concentrations of acetic, butyric, lactic, and succinic acids (P = 0.001, P < 0.001, P = 0.003 and P = 0.007, respectively) and Bifidobacteria at d 35 (P = 0.003) and succinic acid at d14 (P = 0.041). However, caecal populations of Ruminococcus and concentrations of valeric acid at d14 and isobutyric acid at d 35 were greater in birds fed the corn- compared to wheat-based diets (P = 0.043, P = 0.019 and P < 0.001, respectively). These results illustrate that dietary sNSP concentration, as well as its composition, have a direct impact on gastrointestinal viscosity and pH, and fuel beneficial microbial species, resulting in production of SCFA. It appears to be particularly important to consider sNSP level when formulating wheat-based diets for broilers.
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Hsu CN, Hou CY, Hsu WH, Tain YL. Cardiovascular Diseases of Developmental Origins: Preventive Aspects of Gut Microbiota-Targeted Therapy. Nutrients 2021; 13:2290. [PMID: 34371800 DOI: 10.3390/nu13072290] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/24/2021] [Accepted: 06/30/2021] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular diseases (CVDs) can originate from early life. Accumulating evidence suggests that gut microbiota in early life is linked to CVDs in later life. Gut microbiota-targeted therapy has gained significant importance in recent decades for its health-promoting role in the prevention (rather than just treatment) of CVDs. Thus far, available gut microbiota-based treatment modalities used as reprogramming interventions include probiotics, prebiotics, and postbiotics. The purpose of this review is, first, to highlight current studies that link dysbiotic gut microbiota to the developmental origins of CVD. This is followed by a summary of the connections between the gut microbiota and CVD behind cardiovascular programming, such as short chain fatty acids (SCFAs) and their receptors, trimethylamine-N-oxide (TMAO), uremic toxins, and aryl hydrocarbon receptor (AhR), and the renin-angiotensin system (RAS). This review also presents an overview of how gut microbiota-targeted reprogramming interventions can prevent the developmental origins of CVD from animal studies. Overall, this review reveals that recent advances in gut microbiota-targeted therapy might provide the answers to reduce the global burden of CVDs. Still, additional studies will be needed to put research findings into practice.
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Yoon LS, Michels KB. Characterizing the Effects of Calcium and Prebiotic Fiber on Human Gut Microbiota Composition and Function Using a Randomized Crossover Design-A Feasibility Study. Nutrients 2021; 13:1937. [PMID: 34200105 PMCID: PMC8227192 DOI: 10.3390/nu13061937] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/16/2021] [Accepted: 06/02/2021] [Indexed: 12/16/2022] Open
Abstract
Consumption of prebiotic inulin has been found to increase calcium absorption, which may protect against gut diseases such as colorectal cancer. This dietary relation may be modulated by compositional changes in the gut microbiota; however, no human study has addressed this hypothesis. We determined the feasibility of a randomized crossover trial to evaluate the effect of three interventions (combined calcium and inulin supplementation, calcium supplementation alone, and inulin supplementation alone) on the intestinal microbiota composition and function. We conducted a 16-week pilot study in 12 healthy adults who consumed the three interventions in a random sequence. Participants provided fecal and blood samples before and after each intervention. Each intervention period lasted four weeks and was flanked by one-week washout periods. 16S ribosomal RNA sequencing and quantification of short chain fatty acids (SCFA) was determined in fecal samples. Systemic lipopolysaccharide binding protein (LBP) was quantified in serum. Of the 12 individuals assigned to an intervention sequence, seven completed the study. Reasons for dropout included time (n = 3), gastrointestinal discomfort (n = 1), and moving (n = 1). Overall, participants reported positive attitudes towards the protocol (n = 9) but were unsatisfied by the practicalities of supplement consumption (44%) and experienced digestive discomfort (56%). We found no appreciable differences in microbial composition, SCFA concentration, nor LBP concentrations when comparing intervention periods. In conclusion, an intervention study using a randomized crossover design with calcium and a prebiotic fiber is feasible. Improvements of our study design include using a lower dose prebiotic fiber supplement and a larger sample size.
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Affiliation(s)
- Lara S. Yoon
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA 90095, USA;
| | - Karin B. Michels
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA 90095, USA;
- Institute for Prevention and Cancer Epidemiology, Faculty of Medicine and Medical Center, University of Freiburg, 79110 Freiburg, Germany
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Frau A, Lett L, Slater R, Young GR, Stewart CJ, Berrington J, Hughes DM, Embleton N, Probert C. The Stool Volatile Metabolome of Pre-Term Babies. Molecules 2021; 26:3341. [PMID: 34199338 PMCID: PMC8199543 DOI: 10.3390/molecules26113341] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/13/2021] [Accepted: 05/27/2021] [Indexed: 11/16/2022] Open
Abstract
The fecal metabolome in early life has seldom been studied. We investigated its evolution in pre-term babies during their first weeks of life. Multiple (n = 152) stool samples were studied from 51 babies, all <32 weeks gestation. Volatile organic compounds (VOCs) were analyzed by headspace solid phase microextraction gas chromatography mass spectrometry. Data were interpreted using Automated Mass Spectral Deconvolution System (AMDIS) with the National Institute of Standards and Technology (NIST) reference library. Statistical analysis was based on linear mixed modelling, the number of VOCs increased over time; a rise was mainly observed between day 5 and day 10. The shift at day 5 was associated with products of branched-chain fatty acids. Prior to this, the metabolome was dominated by aldehydes and acetic acid. Caesarean delivery showed a modest association with molecules of fungal origin. This study shows how the metabolome changes in early life in pre-term babies. The shift in the metabolome 5 days after delivery coincides with the establishment of enteral feeding and the transition from meconium to feces. Great diversity of metabolites was associated with being fed greater volumes of milk.
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Affiliation(s)
- Alessandra Frau
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 3GE, UK; (L.L.); (R.S.); (C.P.)
| | - Lauren Lett
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 3GE, UK; (L.L.); (R.S.); (C.P.)
| | - Rachael Slater
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 3GE, UK; (L.L.); (R.S.); (C.P.)
| | - Gregory R. Young
- Hub for Biotechnology in the Built Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK;
| | - Christopher J. Stewart
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 8ST, UK; (C.J.S.); (J.B.)
| | - Janet Berrington
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 8ST, UK; (C.J.S.); (J.B.)
- Department of Neonatology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 8ST, UK;
| | - David M. Hughes
- Department of Health Data Science, University of Liverpool, Liverpool, Merseyside L69 3GA, UK;
| | - Nicholas Embleton
- Department of Neonatology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 8ST, UK;
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne NE1 8ST, UK
| | - Chris Probert
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown Street, Liverpool L69 3GE, UK; (L.L.); (R.S.); (C.P.)
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Hsu CN, Hou CY, Chang-Chien GP, Lin S, Tain YL. Maternal Garlic Oil Supplementation Prevents High-Fat Diet-Induced Hypertension in Adult Rat Offspring: Implications of H2S-Generating Pathway in the Gut and Kidneys. Mol Nutr Food Res 2021; 65:e2001116. [PMID: 33547712 DOI: 10.1002/mnfr.202001116] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/07/2021] [Indexed: 12/15/2022]
Abstract
SCOPE Perinatal high-fat (HF) diet induces hypertension in adult offspring. Garlic, a naturally dietary source of Hydrogen sulfide (H2 S) donor, has been shown benefits in hypertension. The article examines whether maternal garlic oil supplementation can prevent hypertension induced by HF diet and elucidate its protective effects. METHODS AND RESULTS Pregnant rats are given either a normal diet or HF diet. Rat dams are given garlic oil or vehicle daily by oral gavage at 100 mg kg-1 day-1 during pregnancy and lactation. Male offspring are sacrificed at 16 weeks of age. Garlic oil supplementation during pregnancy and lactation protected against hypertension induced by HF diet in adult male offspring. The beneficial effects of garlic oil are associated with increased renal mRNA expression and activity of H2 S-generating enzymes, increased NO bioavailability, increased plasma short chain fatty acid levels, and alterations of gut microbiota composition. Garlic oil supplementation increases abundance of genus Lactobacillus, but decreases genera Turicibacter and Staphylococcus. CONCLUSION The data reveals associations between H2 S-generating pathway in the gut and kidneys, NO system, gut microbiota, and microbiota-derived metabolites in hypertension induced by HF intake and provide insight to garlic oil as a hypertension reprogramming strategy for further translational research.
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Affiliation(s)
- Chien-Ning Hsu
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Yao Hou
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Guo-Ping Chang-Chien
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, Taiwan
- Super Micro Mass Research and Technology Center, Cheng Shiu University, Kaohsiung, Taiwan
| | - Sufan Lin
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, Taiwan
- Super Micro Mass Research and Technology Center, Cheng Shiu University, Kaohsiung, Taiwan
| | - You-Lin Tain
- Department of Pediatrics, College of Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, Kaohsiung, Taiwan
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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42
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Sahuri-Arisoylu M, Mould RR, Shinjyo N, Bligh SWA, Nunn AVW, Guy GW, Thomas EL, Bell JD. Acetate Induces Growth Arrest in Colon Cancer Cells Through Modulation of Mitochondrial Function. Front Nutr 2021; 8:588466. [PMID: 33937302 PMCID: PMC8081909 DOI: 10.3389/fnut.2021.588466] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 03/15/2021] [Indexed: 12/14/2022] Open
Abstract
Acetate is one of the main short chain fatty acids produced in the colon when fermentable carbohydrates are digested. It has been shown to affect normal metabolism, modulating mitochondrial function, and fatty acid oxidation. Currently, there is no clear consensus regarding the effects of acetate on tumorigenesis and cancer metabolism. Here, we investigate the metabolic effects of acetate on colon cancer. HT29 and HCT116 colon cancer cell lines were treated with acetate and its effect on mitochondrial proliferation, reactive oxygen species, density, permeability transition pore, cellular bioenergetics, gene expression of acetyl-CoA synthetase 1 (ACSS1) and 2 (ACSS2), and lipid levels were investigated. Acetate was found to reduce proliferation of both cell lines under normoxia as well as reducing glycolysis; it was also found to increase both oxygen consumption and ROS levels. Cell death observed was independent of ACSS1/2 expression. Under hypoxic conditions, reduced proliferation was maintained in the HT29 cell line but no longer observed in the HCT116 cell line. ACSS2 expression together with cellular lipid levels was increased in both cell lines under hypoxia which may partly protect cells from the anti-proliferative effects of reversed Warburg effect caused by acetate. The findings from this study suggest that effect of acetate on proliferation is a consequence of its impact on mitochondrial metabolism and during normoxia is independent of ACCS1/2 expression.
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Affiliation(s)
- Meliz Sahuri-Arisoylu
- Research Centre of Optimal Health, School of Life Sciences, University of Westminster, London, United Kingdom.,Health Innovation Ecosystem, University of Westminster, London, United Kingdom
| | - Rhys R Mould
- Research Centre of Optimal Health, School of Life Sciences, University of Westminster, London, United Kingdom
| | - Noriko Shinjyo
- Research Centre of Optimal Health, School of Life Sciences, University of Westminster, London, United Kingdom
| | - S W Annie Bligh
- Research Centre of Optimal Health, School of Life Sciences, University of Westminster, London, United Kingdom.,School of Health Sciences, Caritas Institute of Higher Education, Hong Kong, China
| | - Alistair V W Nunn
- Research Centre of Optimal Health, School of Life Sciences, University of Westminster, London, United Kingdom
| | - Geoffrey W Guy
- Research Centre of Optimal Health, School of Life Sciences, University of Westminster, London, United Kingdom
| | - Elizabeth Louise Thomas
- Research Centre of Optimal Health, School of Life Sciences, University of Westminster, London, United Kingdom
| | - Jimmy D Bell
- Research Centre of Optimal Health, School of Life Sciences, University of Westminster, London, United Kingdom
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Favero C, Carriazo S, Cuarental L, Fernandez-Prado R, Gomá-Garcés E, Perez-Gomez MV, Ortiz A, Fernandez-Fernandez B, Sanchez-Niño MD. Phosphate, Microbiota and CKD. Nutrients 2021; 13:1273. [PMID: 33924419 DOI: 10.3390/nu13041273] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 02/08/2023] Open
Abstract
Phosphate is a key uremic toxin associated with adverse outcomes. As chronic kidney disease (CKD) progresses, the kidney capacity to excrete excess dietary phosphate decreases, triggering compensatory endocrine responses that drive CKD-mineral and bone disorder (CKD-MBD). Eventually, hyperphosphatemia develops, and low phosphate diet and phosphate binders are prescribed. Recent data have identified a potential role of the gut microbiota in mineral bone disorders. Thus, parathyroid hormone (PTH) only caused bone loss in mice whose microbiota was enriched in the Th17 cell-inducing taxa segmented filamentous bacteria. Furthermore, the microbiota was required for PTH to stimulate bone formation and increase bone mass, and this was dependent on bacterial production of the short-chain fatty acid butyrate. We review current knowledge on the relationship between phosphate, microbiota and CKD-MBD. Topics include microbial bioactive compounds of special interest in CKD, the impact of dietary phosphate and phosphate binders on the gut microbiota, the modulation of CKD-MBD by the microbiota and the potential therapeutic use of microbiota to treat CKD-MBD through the clinical translation of concepts from other fields of science such as the optimization of phosphorus utilization and the use of phosphate-accumulating organisms.
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Zhu S, Liang J, Zhu F, Zhang X, Xu M, Zhao K, Zeng L, Xu K. The effects of myeloablative or non-myeloablative total body irradiations on intestinal tract in mice. Biosci Rep 2021; 41:BSR20202993. [PMID: 33605406 PMCID: PMC7926181 DOI: 10.1042/bsr20202993] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 01/25/2021] [Accepted: 02/18/2021] [Indexed: 12/12/2022] Open
Abstract
Acute radiation injury caused by high-dose radiation exposure severely impedes the application of radiotherapy in cancer management. To deeply understand the side effects of radiation on intestinal tract, an irradiation murine model was applied and evaluated. C57BL/6 mice were given 4 Gy non-myeloablative irradiation, 8 Gy myeloablative irradiation and non-irradiation (control), respectively. Results demonstrated that the 8 Gy myeloablative irradiations significantly damaged the gut barrier along with decreasing MECA32 and ZO-1. However, a slight increase in MECA32 and ZO-1 was detected in the 4 Gy non-myeloablative irradiations treatment from day 5 to day 10. Further, the irradiations affected the expression of P38 and JNK mitogen-activated protein kinase (MAPK) but not ERK1/2 MAPK signal pathway. Moreover, irradiation had adverse effects on hematopoietic system, altered the numbers and percentages of intestinal inflammatory cells. The IL-17/AhR had big increase in the gut of 4 Gy irradiation mice at day 10 compared with other groups. Both 8 Gy myeloablative and 4 Gy non-myeloablative irradiation disturbed the levels of short-chain fatty acids (SCFAs) in intestine. Meanwhile, high dosage of irradiation decreased the intestinal bacterial diversity and altered the community composition. Importantly, the fatty acids generating bacteria Bacteroidaceae and Ruminococcaceae played key roles in community distribution and SCFAs metabolism after irradiation. Collectively, the irradiation induced gut barrier damage with dosages dependent that led to the decreased p38 MAPK and increased JNK MAPK, unbalanced the mononuclear cells (MNCs) of gut, disturbed intestinal bacterial community and SCFAs level.
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Affiliation(s)
- Shengyun Zhu
- Institute of Blood Diseases, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
- The Key Laboratory of Bone Marrow Stem Cell, Jiangsu 221002, China
| | - Jing Liang
- Institute of Blood Diseases, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Feng Zhu
- Institute of Blood Diseases, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
- The Key Laboratory of Bone Marrow Stem Cell, Jiangsu 221002, China
| | - Xue Zhang
- Institute of Blood Diseases, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Mengdi Xu
- Institute of Blood Diseases, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Kai Zhao
- Institute of Blood Diseases, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
- The Key Laboratory of Bone Marrow Stem Cell, Jiangsu 221002, China
| | - Lingyu Zeng
- Institute of Blood Diseases, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
- The Key Laboratory of Bone Marrow Stem Cell, Jiangsu 221002, China
| | - Kailin Xu
- Institute of Blood Diseases, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
- The Key Laboratory of Bone Marrow Stem Cell, Jiangsu 221002, China
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Wongkaew M, Tinpovong B, Sringarm K, Leksawasdi N, Jantanasakulwong K, Rachtanapun P, Hanmoungjai P, Sommano SR. Crude Pectic Oligosaccharide Recovery from Thai Chok Anan Mango Peel Using Pectinolytic Enzyme Hydrolysis. Foods 2021; 10:627. [PMID: 33809517 PMCID: PMC7999440 DOI: 10.3390/foods10030627] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/09/2021] [Accepted: 03/12/2021] [Indexed: 12/17/2022] Open
Abstract
Pectin recovered from mango peel biomass can be used as a potential source for pectic oligosaccharide hydrolysate with excellent probiotic growth-enhancing performance and prebiotic potentials. Consequently, the objectives of the current study were to optimise the enzyme hydrolysis treatment of mango peel pectin (MPP) and to evaluate the pectic oligosaccharide effects of Lactobacillus reuteri DSM 17938 and Bifidobacterium animalis TISTR 2195. Mango of "chok anan" variety was chosen due to its excessive volume of biomass in processing and high pectin content. The optimal treatment for mango peel pectic oligosaccharide (MPOS) valorisation was 24 h of fermentation with 0.3% (v/v) pectinase. This condition provided small oligosaccharides with the molecular weight of 643 Da that demonstrated the highest score of prebiotic activity for both of B. animalis TISTR 2195 (7.76) and L. reuteri DSM 17938 (6.87). The major sugar compositions of the oligosaccharide were fructose (24.41% (w/w)) and glucose (19.52% (w/w)). For the simulation of prebiotic fermentation, B. animalis TISTR 2195 showed higher proliferation in 4% (w/v) of MPOS supplemented (8.92 log CFU/mL) than that of L. reuteri (8.53 CFU/mL) at 72 h of the fermentation time. The main short chain fatty acids (SCFAs) derived from MPOS were acetic acid and propionic acid. The highest value of total SCFA was achieved from the 4% (w/v) MPOS supplementation for both of B. animalis (68.57 mM) and L. reuteri (69.15 mM). The result of this study therefore conclusively advises that MPOS is a novel pectic oligosaccharide resource providing the opportunity for the sustainable development approach through utilising by-products from the fruit industry.
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Affiliation(s)
- Malaiporn Wongkaew
- Interdisciplinary Program in Biotechnology, Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand;
- Program of Food Production and Innovation, Faculty of Integrated Science and Technology, Rajamangala University of Technology Lanna, Chiang Mai 50300, Thailand;
- Plant Bioactive Compound Laboratory, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Bow Tinpovong
- Program of Food Production and Innovation, Faculty of Integrated Science and Technology, Rajamangala University of Technology Lanna, Chiang Mai 50300, Thailand;
| | - Korawan Sringarm
- Department of Animal and Aquatic Science, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand;
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50200, Thailand; (N.L.); (K.J.); (P.R.)
| | - Noppol Leksawasdi
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50200, Thailand; (N.L.); (K.J.); (P.R.)
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Kittisak Jantanasakulwong
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50200, Thailand; (N.L.); (K.J.); (P.R.)
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Pornchai Rachtanapun
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50200, Thailand; (N.L.); (K.J.); (P.R.)
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Prasert Hanmoungjai
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Sarana Rose Sommano
- Plant Bioactive Compound Laboratory, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50200, Thailand; (N.L.); (K.J.); (P.R.)
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Hsu CN, Chan JYH, Wu KLH, Yu HR, Lee WC, Hou CY, Tain YL. Altered Gut Microbiota and Its Metabolites in Hypertension of Developmental Origins: Exploring Differences between Fructose and Antibiotics Exposure. Int J Mol Sci 2021; 22:2674. [PMID: 33800916 DOI: 10.3390/ijms22052674] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 02/07/2023] Open
Abstract
Gut microbiota-derived metabolites, in particular short chain fatty acids (SCFAs) and their receptors, are linked to hypertension. Fructose and antibiotics are commonly used worldwide, and they have a negative impact on the gut microbiota. Our previous study revealed that maternal high-fructose (HF) diet-induced hypertension in adult offspring is relevant to altered gut microbiome and its metabolites. We, therefore, intended to examine whether minocycline administration during pregnancy and lactation may further affect blood pressure (BP) programmed by maternal HF intake via mediating gut microbiota and SCFAs. Pregnant Sprague-Dawley rats received a normal diet or diet containing 60% fructose throughout pregnancy and lactation periods. Additionally, pregnant dams received minocycline (50 mg/kg/day) via oral gavage or a vehicle during pregnancy and lactation periods. Four groups of male offspring were studied (n = 8 per group): normal diet (ND), high-fructose diet (HF), normal diet + minocycline (NDM), and HF + minocycline (HFM). Male offspring were killed at 12 weeks of age. We observed that the HF diet and minocycline administration, both individually and together, causes the elevation of BP in adult male offspring, while there is no synergistic effect between them. Four groups displayed distinct enterotypes. Minocycline treatment leads to an increase in the F/B ratio, but decreased abundance of genera Lactobacillus, Ruminococcus, and Odoribacter. Additionally, minocycline treatment decreases plasma acetic acid and butyric acid levels. Hypertension programmed by maternal HF diet plus minocycline exposure is related to the increased expression of several SCFA receptors. Moreover, minocycline- and HF-induced hypertension, individually or together, is associated with the aberrant activation of the renin-angiotensin system (RAS). Conclusively, our results provide a new insight into the support of gut microbiota and its metabolite SCAFs in the developmental programming of hypertension and cast new light on the role of RAS in this process, which will help prevent hypertension programmed by maternal high-fructose and antibiotic exposure.
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Freedman KE, Hill JL, Wei Y, Vazquez AR, Grubb DS, Trotter RE, Wrigley SD, Johnson SA, Foster MT, Weir TL. Examining the Gastrointestinal and Immunomodulatory Effects of the Novel Probiotic Bacillus subtilis DE111. Int J Mol Sci 2021; 22:2453. [PMID: 33671071 DOI: 10.3390/ijms22052453] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 12/12/2022] Open
Abstract
Probiotics make up a large and growing segment of the commercial market of dietary supplements and are touted as offering a variety of human health benefits. Some of the purported positive impacts of probiotics include, but are not limited to, stabilization of the gut microbiota, prevention of gastrointestinal disorders and modulation of the host immune system. Current research suggests that the immunomodulatory effects of probiotics are strain-specific and vary in mode of action. Here, we examined the immunomodulatory properties of Bacillus subtilis strain DE111 in a healthy human population. In a pilot randomized, double blind, placebo-controlled four-week intervention, we examined peripheral blood mononuclear cells (PBMCs) at basal levels pre- and post-intervention, as well as in response to stimulation with bacterial lipopolysaccharide (LPS). We observed an increase in anti-inflammatory immune cell populations in response to ex vivo LPS stimulation of PBMCs in the DE111 intervention group. Overall perceived gastrointestinal health, microbiota, and circulating and fecal markers of inflammation (Il-6, sIgA) and gut barrier function (plasma zonulin) were largely unaffected by DE111 intervention, although the study may have been underpowered to detect these differences. These pilot data provide information and justification to conduct an appropriately powered clinical study to further examine the immunomodulatory potential of B. subtilis DE111 in human populations.
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Cooney OD, Nagareddy PR, Murphy AJ, Lee MKS. Healthy Gut, Healthy Bones: Targeting the Gut Microbiome to Promote Bone Health. Front Endocrinol (Lausanne) 2021; 11:620466. [PMID: 33679604 PMCID: PMC7933548 DOI: 10.3389/fendo.2020.620466] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/24/2020] [Indexed: 12/11/2022] Open
Abstract
Over the past decade, the use of probiotics to modify the gut microbiome has become a public spotlight in reducing the severity of a number of chronic diseases such as autoimmune disease, diabetes, cancer and cardiovascular disease. Recently, the gut microbiome has been shown to play an important role in regulating bone mass. Therefore, targeting the gut microbiome may be a potential alternative avenue for those with osteopenia or osteoporosis. In this mini-review, we take the opportunity to delve into how the different components of the gut work together and how the gut-related diseases impact on bone health.
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Affiliation(s)
- Olivia D. Cooney
- Haematopoiesis and Leukocyte Biology, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Department of Diabetes, Monash University, Melbourne, VIC, Australia
| | - Prabhakar R. Nagareddy
- Division of Cardiac Surgery, Department of Surgery, Ohio State University, Columbus, OH, United States
| | - Andrew J. Murphy
- Haematopoiesis and Leukocyte Biology, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Department of Diabetes, Monash University, Melbourne, VIC, Australia
- Department of Cardiometabolic Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Man K. S. Lee
- Haematopoiesis and Leukocyte Biology, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Department of Diabetes, Monash University, Melbourne, VIC, Australia
- Department of Cardiometabolic Health, The University of Melbourne, Melbourne, VIC, Australia
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49
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Thorringer NW, Weisberg MR, Jensen RB. The effects of processing barley and maize on metabolic and digestive responses in horses. J Anim Sci 2021; 98:5956277. [PMID: 33150365 DOI: 10.1093/jas/skaa353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 10/31/2020] [Indexed: 11/12/2022] Open
Abstract
The competition for customers increases the search for new grain processing methods for equine feed, but the effect on starch digestibility and metabolic responses varies. Therefore, to evaluate the effect of the processing methods, toasting and micronizing, on starch digestion and the effect on metabolic responses, the mobile bag technique (MBT) and plasma glucose and insulin concentrations in the blood were used to estimate nutrient disappearance and metabolic responses pre-cecally. Further, cecal pH, ammonium nitrogen (N), and short-chain fatty acid (SCFA) concentrations were used to estimate the metabolic response in the cecum. Four cecally cannulated horses (body weight [BW] 565 ± 35 kg) were used in a 4 × 4 Latin square design with four periods of 8 d of diet adaptation and 2 d of data collection. Diets were formulated using hay and processed grains: micronized barley (MB), toasted barley (TB), micronized maize (MM), and toasted maize (TM) and were balanced to provide 1 g starch/kg BW in the morning meal. On day 9 in each period, blood and cecal fluid samples were taken before the morning meal and hourly thereafter for 8 h. On day 10 in each period, 15 bags of either MB, TB, MM, or TM (1 × 1 × 12 cm; 15 μm pore size; 1 g feed) were placed in the stomach, respectively. The dry matter disappearance was highest for the MM at all time points compared with the other feedstuffs (P < 0.001). Maize and micronizing had the highest starch disappearance (P = 0.048) compared with barley and toasting. No treatment effect was measured for any of the glucose and insulin parameters. No feed effect was measured for the insulin parameters. Plasma glucose peaked later (P = 0.045) for maize than for barley, and TB had a larger area under the curve for glucose than MB, MM, and TM (P = 0.015). The concentration of total SCFA increased after feeding (P < 0.001), with a higher concentration for barley than for maize (P = 0.044). No treatment or feed effects were measured for ammonium N or pH, but both were affected by time (P < 0.001). In conclusion, toasting was not as efficient as micronizing to improve pre-cecal starch digestibility; therefore, the preferred processing method for both barley and maize is micronizing. Further, the amount of starch escaping enzymatical digestion in the small intestine was higher than expected.
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Affiliation(s)
- Nana W Thorringer
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, Ås, Norway
| | - Martin R Weisberg
- Department of Animal Science, AU-Foulum, Aarhus University, Tjele, Denmark
| | - Rasmus B Jensen
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, Ås, Norway
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Cao X, Liu K, Liu J, Liu YW, Xu L, Wang H, Zhu Y, Wang P, Li Z, Wen J, Shen C, Li M, Nie Z, Kong XJ. Dysbiotic Gut Microbiota and Dysregulation of Cytokine Profile in Children and Teens With Autism Spectrum Disorder. Front Neurosci 2021; 15:635925. [PMID: 33642989 PMCID: PMC7902875 DOI: 10.3389/fnins.2021.635925] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/20/2021] [Indexed: 12/19/2022] Open
Abstract
Inflammation and the gut-brain axis have been implicated in the pathogenesis of autism spectrum disorders (ASDs). To further understand the relationship between aberrant immune responses and dysbiotic features of the gut microbiome in ASD, we enrolled 45 ASD individuals and 41 healthy control subjects with ages ranging from 2 to 19 years. We found that ASD group subjects have significantly higher plasma levels of IL-2, IL-4, IL-5, IL-6, IL-10, TNF-α, TNF-β, and IFN-γ when compared to healthy controls (FDR-adjusted p < 0.05). The plasma levels of pro-inflammatory cytokines IFN-γ and IL-6 are found to be further associated with several largely pathogenic gut microbiota uniquely detected in subjects with ASD. Furthermore, the ASD gut microbiome is characterized by reduced levels of several beneficial microbiota, including Bacteroides (FDR-adjusted p < 0.01) and Lachnospiraceae (FDR-adjusted p < 0.001). Analysis of Lachnospiraceae family and genus level taxa suggested that relative abundances of such taxa are negatively correlated with pro-inflammatory signaling cytokines IFN-γ and IL-6, particularly in subjects with severe ASD as defined by CARS (p < 0.05). Several largely pathogenic genera are determined to be associated with the pro-inflammatory cytokines IFN-γ and IL-6 (FDR-adjusted p < 0.1). Additionally, IL-4 is significantly negatively correlated with CARS total score (p < 0.05). Based on such results, we propose that the association between the disturbances of specific cytokines and alterations in gut microbiota abundance observed in children and adolescents with ASD provides additional evidence on the induction of aberrant pro-inflammatory mechanisms in ASD and its early diagnosis.
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Affiliation(s)
- Xia Cao
- Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Kevin Liu
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
| | - Jun Liu
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
| | - Yen-Wenn Liu
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan
| | - Li Xu
- Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Hua Wang
- Hong-Ta District Maternal and Child Health Hospital, Yuxi, China
| | - Yunhui Zhu
- Hong-Ta District Maternal and Child Health Hospital, Yuxi, China
| | - Pengfei Wang
- Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhiwei Li
- Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jie Wen
- Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Chen Shen
- Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Meng Li
- Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zuqing Nie
- Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xue-Jun Kong
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Boston, MA, United States
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