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Yu J, Zheng C, Guo Q, Yin Y, Duan Y, Li F. LPS-related muscle loss is associated with the alteration of Bacteroidetes abundance, systemic inflammation, and mitochondrial morphology in a weaned piglet model. SCIENCE CHINA. LIFE SCIENCES 2024; 67:1970-1988. [PMID: 38913237 DOI: 10.1007/s11427-023-2552-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 02/19/2024] [Indexed: 06/25/2024]
Abstract
We previously demonstrated that lipopolysaccharide (LPS) injection-induced immune stress could impair muscle growth in weaned piglets, but the precise mechanisms behind this remain elusive. Here, we found that chronic immune stress induced by LPS resulted in a significant reduction of 36.86% in the total muscle mass of piglets at 5 d post-treatment compared with the control group. At 1 d, prior to muscle mass loss, multiple alterations were noted in response to LPS treatment. These included a reduction in the abundance of Bacteroidetes, an increase in serum concentrations of pro-inflammatory cytokines, compromised mitochondrial morphology, and an upregulation in the expression of dynamin-related protein 1 (Drp1), a critical protein involved in mitochondrial fission. We highlight a strong negative correlation between Bacteroidetes abundance and the levels of serum pro-inflammatory cytokines, corroborated by in vivo intervention strategies in the musculature of both pig and mouse models. Mechanistically, the effects of Bacteroidetes on inflammation and muscle mass loss may involve the signaling pathway of the tauro-β-muricholic acid-fibroblast growth factor 15. Furthermore, the induction of overexpression of inflammatory cytokines, achieved without LPS treatment through oral administration of recombinant human IL-6 (rhIL-6), led to increased levels of circulating cytokines, subsequently causing a decrease in muscle mass. Notably, pre-treatment with Mdivi-1, an inhibitor of Drp-1, markedly attenuated the LPS-induced elevation in reactive oxygen species levels and rescued the associated decline in muscle mass. Collectively, these data indicate that LPS-induced muscle mass loss was linked to the reduction of Bacteroidetes abundance, increased inflammation, and the disruption of mitochondrial morphology. These insights offer promising avenues for the identification of potential therapeutic targets aimed at mitigating muscle mass loss.
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Affiliation(s)
- Jiayi Yu
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Changbing Zheng
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China
| | - Qiuping Guo
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Yulong Yin
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China
| | - Yehui Duan
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Fengna Li
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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Yang B, Tang G, Wang M, Ni Y, Tong J, Hu C, Zhou M, Jiao K, Li Z. Trimethylamine N-oxide induces non-alcoholic fatty liver disease by activating the PERK. Toxicol Lett 2024; 400:93-103. [PMID: 39153559 DOI: 10.1016/j.toxlet.2024.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 06/17/2024] [Accepted: 08/15/2024] [Indexed: 08/19/2024]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a liver disease causing different progressive pathological changes. Trimethylamine N-oxide (TMAO), a product of gut microbiota metabolism, is a specific agonist of the protein kinase R-like endoplasmic reticulum kinase (PERK) pathway, one of the endoplasmic reticulum stress (ERS) pathways. TMAO has been associated with the occurrence and development of NAFLD based on the results of previous studies, but whether the simple consumption of TMAO can directly induce NAFLD and its underlying mechanism remain unclear. To investigate this question, we constructed an animal model in which adult male zebrafish were fed a controlled diet containing 1 % or 3 % TMAO for 20 weeks. Eventually, we observed that TMAO caused lipid accumulation, inflammatory infiltration, liver injury and liver fibrosis in zebrafish livers; meanwhile, the PERK signaling pathway was activated in the zebrafish livers. This finding was further confirmed in HepG2 cells and hepatic stellate cells models. In conclusion, this study found that TMAO directly induced different pathological states of NAFLD in zebrafish liver, and the activation of PERK pathway is an important mechanism, which may provide crucial strategies for the diagnosis and treatment of NAFLD.
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Affiliation(s)
- Bingmo Yang
- Suqian Center for Disease Control and Prevention, Suqian, Jiangsu 223800, China
| | - Guomin Tang
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Mengting Wang
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yifan Ni
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jiali Tong
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Chunyan Hu
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Ming Zhou
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Kailin Jiao
- Department of Nutrition, The Second Affiliated Hospital, Air Force Medical University, Xi'an 710038, China.
| | - Zhong Li
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
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3
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Zhang B, Magnaye KM, Stryker E, Moltzau-Anderson J, Porsche CE, Hertz S, McCauley KE, Smith BJ, Zydek M, Pollard KS, Ma A, El-Nachef N, Lynch SV. Sustained mucosal colonization and fecal metabolic dysfunction by Bacteroides associates with fecal microbial transplant failure in ulcerative colitis patients. Sci Rep 2024; 14:18558. [PMID: 39122767 PMCID: PMC11316000 DOI: 10.1038/s41598-024-62463-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 05/16/2024] [Indexed: 08/12/2024] Open
Abstract
Fecal microbial transplantation (FMT) offers promise for treating ulcerative colitis (UC), though the mechanisms underlying treatment failure are unknown. This study harnessed longitudinally collected colonic biopsies (n = 38) and fecal samples (n = 179) from 19 adults with mild-to-moderate UC undergoing serial FMT in which antimicrobial pre-treatment and delivery mode (capsules versus enema) were assessed for clinical response (≥ 3 points decrease from the pre-treatment Mayo score). Colonic biopsies underwent dual RNA-Seq; fecal samples underwent parallel 16S rRNA and shotgun metagenomic sequencing as well as untargeted metabolomic analyses. Pre-FMT, the colonic mucosa of non-responsive (NR) patients harbored an increased burden of bacteria, including Bacteroides, that expressed more antimicrobial resistance genes compared to responsive (R) patients. NR patients also exhibited muted mucosal expression of innate immune antimicrobial response genes. Post-FMT, NR and R fecal microbiomes and metabolomes exhibited significant divergence. NR metabolomes had elevated concentrations of immunostimulatory compounds including sphingomyelins, lysophospholipids and taurine. NR fecal microbiomes were enriched for Bacteroides fragilis and Bacteroides salyersiae strains that encoded genes capable of taurine production. These findings suggest that both effective mucosal microbial clearance and reintroduction of bacteria that reshape luminal metabolism associate with FMT success and that persistent mucosal and fecal colonization by antimicrobial-resistant Bacteroides species may contribute to FMT failure.
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Affiliation(s)
- Bing Zhang
- Department of Medicine, Division of Gastrointestinal and Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Kevin M Magnaye
- Division of Gastroenterology, Department of Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
- The Benioff Center for Microbiome Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Emily Stryker
- Division of Gastroenterology, Department of Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Jacqueline Moltzau-Anderson
- Division of Gastroenterology, Department of Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
- The Benioff Center for Microbiome Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Cara E Porsche
- Division of Gastroenterology, Department of Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Sandra Hertz
- Department of Infectious Diseases, Aalborg University Hospital, Aalborg, Denmark
| | - Kathryn E McCauley
- Division of Gastroenterology, Department of Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Byron J Smith
- The Gladstone Institutes, Data Science and Biotechnology, San Francisco, CA, 94158, USA
| | - Martin Zydek
- Division of Gastroenterology, Department of Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Katherine S Pollard
- The Gladstone Institutes, Data Science and Biotechnology, San Francisco, CA, 94158, USA
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, 94158, USA
- Chan Zuckerberg Biohub, San Francisco, CA University of California, San Francisco, CA, 94158, USA
| | - Averil Ma
- Division of Gastroenterology, Department of Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Najwa El-Nachef
- Division of Gastroenterology, Department of Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
- Division of Gastroenterology, Henry Ford Health System, Detroit, MI, 48208, USA
| | - Susan V Lynch
- Division of Gastroenterology, Department of Medicine, University of California San Francisco, San Francisco, CA, 94143, USA.
- The Benioff Center for Microbiome Medicine, University of California San Francisco, San Francisco, CA, 94143, USA.
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Cao X, Zhao M, Wang X, Lin J, Yang M, Zhong L, Liang L, Yue Y, Du J, Li J, Zhou T, Yu J, Liang Y, Shi R, Luo R, Shen X, Chen Y, Wang Y, Shu Z. Multi-metabolomics and intestine microbiome analysis: YZC extract ameliorates septic-ALI by modulating intestine microbiota to reduce TMAO/NLRP3 signaling. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155345. [PMID: 38810555 DOI: 10.1016/j.phymed.2024.155345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/14/2023] [Accepted: 01/07/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND Sepsis causes inflammation in response to infection, often leading to acute lung injury (ALI). Yazhicao (Commelina communis L., YZC) is widely distributed in the global tropics and has good anti-respiratory inflammatory activity; however, the protection of YZC against septic-ALI has not been established. PURPOSE The role of YZC in septic-ALI will be investigated in this study. METHODS AND RESULTS In this study, YZC was shown to inhibit excessive inflammation and alleviate septic-ALI. Network pharmacology predicts that Quercetin, Acacetin and Diosmetin have the potential to serve as the pharmacological substance basis of YZC in alleviating septic-ALI. The metabolomics results indicated that YZC could improve the metabolic disorders caused by septic-ALI, which were mostly concerned with energy metabolism and amino acid metabolism, with Trimethylamine (TMA)/Trimethylamine N-oxide (TMAO) being potential small molecule metabolic markers for the clinical diagnosis and treatment of septic-ALI. YZC inhibits the initiation and progression of septic-ALI by controlling the TMA/TMAO metabolites. Our results also suggest that YZC protects the intestinal barrier from damage. Furthermore, our research indicated that YZC reduces TMAO synthesis by inhibiting TMA production through remodeling the intestine microbiota. We investigated the mechanism of YZC-mediated protection against septic-ALI and showed that YZC reduced the expression of proteins associated with NLRP3 inflammatory vesicles in the lung by inhibiting the expression of NF-κB. CONCLUSION These results show that YZC inhibits the NF-κB/NLRP3 signaling pathway by regulating metabolic and intestinal flora disorders in septic-ALI mice to reduce TMAO synthesis. This study presents a theoretical groundwork for the advancement of novel medications and clinical use of YZC to enhance septic-ALI and furnishes a theoretical rationale for regulating intestinal microbiota as a therapeutic instrument to treat sepsis and septic-ALI.
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Affiliation(s)
- Xia Cao
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Mantong Zhao
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xiao Wang
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jiazi Lin
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Mengru Yang
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Luyang Zhong
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Lanyuan Liang
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yiming Yue
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jieyong Du
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jianhua Li
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Tong Zhou
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jiamin Yu
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yefang Liang
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Ruixiang Shi
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Rongfeng Luo
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xuejuan Shen
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Ying Chen
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; Department of Pharmacy, Meizhou People's Hospital, No. 38 Huangtang Road, Meizhou 514000, China.
| | - Yi Wang
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Zunpeng Shu
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, China; School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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Fei SF, Hou C, Jia F. Effects of salidroside on atherosclerosis: potential contribution of gut microbiota. Front Pharmacol 2024; 15:1400981. [PMID: 39092226 PMCID: PMC11292615 DOI: 10.3389/fphar.2024.1400981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 07/01/2024] [Indexed: 08/04/2024] Open
Abstract
Much research describes gut microbiota in atherosclerotic cardiovascular diseases (ASCVD) for that the composition of the intestinal microbiome or its metabolites can directly participate in the development of endothelial dysfunction, atherosclerosis and its adverse complications. Salidroside, a natural phenylpropane glycoside, exhibits promising biological activity against the progression of ASCVD. Recent studies suggested that the gut microbiota played a crucial role in mediating the diverse beneficial effects of salidroside on health. Here, we describe the protective effects of salidroside against the progression of atherosclerosis. Salidroside regulates the abundance of gut microbiotas and gut microbe-dependent metabolites. Moreover, salidroside improves intestinal barrier function and maintains intestinal epithelial barrier function integrity. In addition, salidroside attenuates the inflammatory responses exacerbated by gut microbiota disturbance. This review delves into how salidroside functions to ameliorate atherosclerosis by focusing on its interaction with gut microbiota, uncovering the potential roles of gut microbiota in the diverse biological impacts of salidroside.
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Affiliation(s)
| | | | - Fang Jia
- Department of Cardiovascular Medicine, The First People’s Hospital of Changzhou, The Third Affiliated Hospital of Soochow University, Changzhou, China
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Martin-Grau M, Monleón D. The Role of Microbiota-Related Co-Metabolites in MASLD Progression: A Narrative Review. Curr Issues Mol Biol 2024; 46:6377-6389. [PMID: 39057023 PMCID: PMC11276081 DOI: 10.3390/cimb46070381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/17/2024] [Accepted: 06/21/2024] [Indexed: 07/28/2024] Open
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) represents a growing health concern due to its increasing prevalence worldwide. Metabolic homeostasis encompasses the stable internal conditions vital for efficient metabolism. This equilibrium extends to the intestinal microbiota, whose metabolic activities profoundly influence overall metabolic balance and organ health. The metabolites derived from the gut microbiota metabolism can be defined as microbiota-related co-metabolites. They serve as mediators between the gut microbiota and the host, influencing various physiological processes. The recent redefinition of the term MASLD has highlighted the metabolic dysfunction that characterize the disease. Metabolic dysfunction encompasses a spectrum of abnormalities, including impaired glucose regulation, dyslipidemia, mitochondrial dysfunction, inflammation, and accumulation of toxic byproducts. In addition, MASLD progression has been linked to dysregulation in the gut microbiota and associated co-metabolites. Short-chain fatty acids (SCFAs), hippurate, indole derivatives, branched-chain amino acids (BCAAs), and bile acids (BAs) are among the key co-metabolites implicated in MASLD progression. In this review, we will unravel the relationship between the microbiota-related metabolites which have been associated with MASLD and that could play an important role for developing effective therapeutic interventions for MASLD and related metabolic disorders.
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Affiliation(s)
- Maria Martin-Grau
- Department of Pathology, University of Valencia, 46010 Valencia, Spain
- University Clinical Hospital of Valencia Research Foundation (INCLIVA), 46010 Valencia, Spain
| | - Daniel Monleón
- Department of Pathology, University of Valencia, 46010 Valencia, Spain
- University Clinical Hospital of Valencia Research Foundation (INCLIVA), 46010 Valencia, Spain
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7
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Lambert A, Budinich M, Mahé M, Chaffron S, Eveillard D. Community metabolic modeling of host-microbiota interactions through multi-objective optimization. iScience 2024; 27:110092. [PMID: 38952683 PMCID: PMC11215293 DOI: 10.1016/j.isci.2024.110092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 03/12/2024] [Accepted: 05/21/2024] [Indexed: 07/03/2024] Open
Abstract
The human gut microbiota comprises various microorganisms engaged in intricate interactions among themselves and with the host, affecting its health. While advancements in omics technologies have led to the inference of clear associations between microbiome composition and health conditions, we usually lack a causal and mechanistic understanding of these associations. For modeling mechanisms driving the interactions, we simulated the organism's metabolism using in silico genome-scale metabolic models (GEMs). We used multi-objective optimization to predict and explain metabolic interactions among gut microbes and an intestinal epithelial cell. We developed a score integrating model simulation results to predict the type (competition, neutralism, mutualism) and quantify the interaction between several organisms. This framework uncovered a potential cross-feeding for choline, explaining the predicted mutualism between Lactobacillus rhamnosus GG and the epithelial cell. Finally, we analyzed a five-organism ecosystem, revealing that a minimal microbiota can favor the epithelial cell's maintenance.
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Affiliation(s)
- Anna Lambert
- Nantes Université, École Centrale Nantes, CNRS, LS2N, UMR 6004, 44000 Nantes, France
| | - Marko Budinich
- Nantes Université, École Centrale Nantes, CNRS, LS2N, UMR 6004, 44000 Nantes, France
| | - Maxime Mahé
- Nantes Université, Inserm, TENS UMR1235, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
- Division of Pediatric General and Thoracic Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Center for Stem Cell and Organoid Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Samuel Chaffron
- Nantes Université, École Centrale Nantes, CNRS, LS2N, UMR 6004, 44000 Nantes, France
| | - Damien Eveillard
- Nantes Université, École Centrale Nantes, CNRS, LS2N, UMR 6004, 44000 Nantes, France
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Xie S, Fang L, Deng N, Shen J, Tan Z, Peng X. Targeting the Gut-Kidney Axis in Diarrhea with Kidney-Yang Deficiency Syndrome: The Role of Sishen Pills in Regulating TMAO-Mediated Inflammatory Response. Med Sci Monit 2024; 30:e944185. [PMID: 38898640 PMCID: PMC11305074 DOI: 10.12659/msm.944185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 05/03/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND Sishen Pills (SSPs) are commonly used to treat diarrhea with kidney-yang deficiency syndrome. Trimethylamine-N-oxide (TMAO) is produced through the metabolism of gut microbiota and can participate in diarrhea in kidney-yang deficiency syndrome by mediating the "gut-kidney axis" to transmit inflammatory factors. This study combined network pharmacology with animal experiments to explore whether SSPs can treat diarrhea with kidney-yang deficiency syndrome by affecting the interaction between TMAO and gut microbiota. MATERIAL AND METHODS A mouse model of diarrhea with kidney-yang deficiency syndrome was constructed by using adenine and Folium sennae decoction, and SSP decoction was used for treatment. This study utilized network pharmacology to predict the potential mechanisms of SSPs in treating diarrhea with kidney-yang deficiency syndrome. 16S rRNA high-throughput sequencing was used to analyze gut mucosal microbial characteristics. ELISA was used to measure TMAO, NOD-like receptor thermal protein domain associated protein 3 (NLRP3), interleukin-1ß (IL-1ß), and transforming growth factor-ß1 (TGF-ß1) levels. We performed Masson and immunohistochemical (Occludin, ZO-1) staining of kidney and small intestinal tissues. The fluorescein diacetate (FDA) hydrolysis spectrophotometric method was used to assess the microbial activity in contents of the small intestine. RESULTS Network pharmacology analysis revealed that SSPs can modulate 108 target points involved in the development of diarrhea, including IL-1ß and TNF. The experimental results demonstrated that SSP decoction significantly improved the general behavioral profiles of the mice, and also reduced TMAO, NLRP3, IL-1ß, and TGF-ß1 levels (P<0.05). Correlation analysis revealed significant positive correlations between TMAO concentrations and NLRP3, IL-1ß and TGF-ß1 levels (P<0.05). Pathological analysis revealed improvements in renal fibrosis and increased expression of the Occludin and ZO-1 proteins in intestinal tissue. In the SSP group, there was a significant increase in microbial activity (P<0.001). According to the sequencing results, the characteristic bacteria of the SSP and NR groups included Succinatimonas hippei, uncultured Solirubrobacter sp., and Clostridium tyrobutyricum. Furthermore, TMAO, NLRP3, IL-1ß, and TGF-ß1 were significantly positively correlated (P<0.05) with Succinatimonas hippei and Clostridium tyrobutyricum. By modulating Firmicutes, Succinatimonas hippei, and Clostridium tyrobutyricum, SSP decoction lowers TMAO levels to alleviate diarrhea with kidney-yang deficiency syndrome. CONCLUSIONS TMAO likely plays a significant role in the "gut-kidney axis" of diarrhea with kidney-yang deficiency syndrome. By adjusting gut microbiota to reduce the inflammatory response that is transmitted through the "gut-kidney axis" as a result of elevated TMAO levels, SSP decoction can alleviate diarrhea with kidney-yang deficiency syndrome.
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Affiliation(s)
- Shiqin Xie
- Hunan University of Chinese Medicine, Changsha, Hunan, PR China
| | - Leyao Fang
- Hunan University of Chinese Medicine, Changsha, Hunan, PR China
| | - Na Deng
- Hunan University of Chinese Medicine, Changsha, Hunan, PR China
| | - Junxi Shen
- Hunan University of Chinese Medicine, Changsha, Hunan, PR China
| | - Zhoujin Tan
- Hunan University of Chinese Medicine, Changsha, Hunan, PR China
| | - Xinxin Peng
- The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, PR China
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9
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Dymek A, Oleksy Ł, Stolarczyk A, Bartosiewicz A. Choline-An Underappreciated Component of a Mother-to-Be's Diet. Nutrients 2024; 16:1767. [PMID: 38892700 PMCID: PMC11174651 DOI: 10.3390/nu16111767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/27/2024] [Accepted: 06/02/2024] [Indexed: 06/21/2024] Open
Abstract
The nutritional status of the mother-to-be has a key impact on the proper development of the fetus. Although all nutrients are important for the developing baby, recent research indicates the importance of adequate choline intake during the periconceptional period, pregnancy, and lactation. Choline plays a key role in the biosynthesis of cell membranes, supporting liver function, neurotransmission, brain development, and DNA and histone methylation. Choline participates in the formation of a child's nervous system, supports its cognitive development, and reduces the risk of neural tube defects. The human body is incapable of producing sufficient choline to meet its needs; therefore, it must be obtained from the diet. Current data indicate that most women in their reproductive years do not achieve the recommended daily intake of choline. The presented narrative review indicates the importance of educating mothers-to-be and thereby increasing their awareness of the effects of choline on maternal and child health, which can lead to a more aware and healthy pregnancy and proper child development.
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Affiliation(s)
- Agnieszka Dymek
- Students Scientific Club of Dietetics, Institute of Health Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland
| | - Łukasz Oleksy
- Department of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-008 Kraków, Poland
| | - Artur Stolarczyk
- Department of Orthopedics and Rehabilitation, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Anna Bartosiewicz
- Institute of Health Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland
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10
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Vallianou NG, Kounatidis D, Psallida S, Panagopoulos F, Stratigou T, Geladari E, Karampela I, Tsilingiris D, Dalamaga M. The Interplay Between Dietary Choline and Cardiometabolic Disorders: A Review of Current Evidence. Curr Nutr Rep 2024; 13:152-165. [PMID: 38427291 PMCID: PMC11133147 DOI: 10.1007/s13668-024-00521-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2024] [Indexed: 03/02/2024]
Abstract
PURPOSE OF REVIEW Choline is an essential nutrient for human health and cellular homeostasis as it is necessary for the synthesis of lipid cell membranes, lipoproteins, and the synthesis of the neurotransmitter acetylcholine. The aim of this review is to analyze the beneficial effects of choline and its significance in cellular metabolism and various inflammatory pathways, such as the inflammasome. We will discuss the significance of dietary choline in cardiometabolic disorders, such as non-alcoholic fatty liver disease (NAFLD), cardiovascular disease (CVD), and chronic kidney disease (CKD) as well as in cognitive function and associated neuropsychiatric disorders. RECENT FINDINGS Choline deficiency has been related to the development of NAFLD and cognitive disability in the offspring as well as in adulthood. In sharp contrast, excess dietary intake of choline mediated via the increased production of trimethylamine by the gut microbiota and increased trimethylamine-N-oxide (TMAO) levels has been related to atherosclerosis in most studies. In this context, CVD and CKD through the accumulation of TMAO, p-Cresyl-sulfate (pCS), and indoxyl-sulfate (IS) in serum may be the result of the interplay between excess dietary choline, the increased production of TMAO by the gut microbiota, and the resulting activation of inflammatory responses and fibrosis. A balanced diet, with no excess nor any deficiency in dietary choline, is of outmost importance regarding the prevention of cardiometabolic disorders as well as cognitive function. Large-scale studies with the use of next-generation probiotics, especially Akkermansia muciniphila and Faecalibacterium prausnitzii, should further examine their therapeutic potential in this context.
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Affiliation(s)
- Natalia G Vallianou
- Department of Internal Medicine, Evangelismos General Hospital, 45-47 Ipsilantou str, Athens, Greece.
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias str, Athens, Greece.
| | - Dimitris Kounatidis
- Department of Internal Medicine, Hippokration General Hospital, 114 Vassilissis Sofias str, Athens, Greece
| | - Sotiria Psallida
- Department of Microbiology, KAT General Hospital of Attica, 2 Nikis str, Athens, Greece
| | - Fotis Panagopoulos
- Department of Internal Medicine, Evangelismos General Hospital, 45-47 Ipsilantou str, Athens, Greece
| | - Theodora Stratigou
- Department of Endocrinology and Metabolism, Evangelismos General Hospital, 45-47 Ipsilantou str, Athens, Greece
| | - Eleni Geladari
- Department of Internal Medicine, Evangelismos General Hospital, 45-47 Ipsilantou str, Athens, Greece
| | - Irene Karampela
- 2nd Department of Critical Care, Medical School, University of Athens, Attikon General University Hospital, 1 Rimini str, Athens, Greece
| | - Dimitrios Tsilingiris
- First Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, Dragana, 68100, Alexandroupoli, Greece
| | - Maria Dalamaga
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias str, Athens, Greece.
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11
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Yaqub A, Vojinovic D, Vernooij MW, Slagboom PE, Ghanbari M, Beekman M, van der Grond J, Hankemeier T, van Duijn CM, Ikram MA, Ahmad S. Plasma trimethylamine N-oxide (TMAO): associations with cognition, neuroimaging, and dementia. Alzheimers Res Ther 2024; 16:113. [PMID: 38769578 PMCID: PMC11103865 DOI: 10.1186/s13195-024-01480-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 05/13/2024] [Indexed: 05/22/2024]
Abstract
BACKGROUND The gut-derived metabolite Trimethylamine N-oxide (TMAO) and its precursors - betaine, carnitine, choline, and deoxycarnitine - have been associated with an increased risk of cardiovascular disease, but their relation to cognition, neuroimaging markers, and dementia remains uncertain. METHODS In the population-based Rotterdam Study, we used multivariable regression models to study the associations between plasma TMAO, its precursors, and cognition in 3,143 participants. Subsequently, we examined their link to structural brain MRI markers in 2,047 participants, with a partial validation in the Leiden Longevity Study (n = 318). Among 2,517 participants, we assessed the risk of incident dementia using multivariable Cox proportional hazard models. Following this, we stratified the longitudinal associations by medication use and sex, after which we conducted a sensitivity analysis for individuals with impaired renal function. RESULTS Overall, plasma TMAO was not associated with cognition, neuroimaging markers or incident dementia. Instead, higher plasma choline was significantly associated with poor cognition (adjusted mean difference: -0.170 [95% confidence interval (CI) -0.297;-0.043]), brain atrophy and more markers of cerebral small vessel disease, such as white matter hyperintensity volume (0.237 [95% CI: 0.076;0.397]). By contrast, higher carnitine concurred with lower white matter hyperintensity volume (-0.177 [95% CI: -0.343;-0.010]). Only among individuals with impaired renal function, TMAO appeared to increase risk of dementia (hazard ratio (HR): 1.73 [95% CI: 1.16;2.60]). No notable differences were observed in stratified analyses. CONCLUSIONS Plasma choline, as opposed to TMAO, was found to be associated with cognitive decline, brain atrophy, and markers of cerebral small vessel disease. These findings illustrate the complexity of relationships between TMAO and its precursors, and emphasize the need for concurrent study to elucidate gut-brain mechanisms.
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Affiliation(s)
- Amber Yaqub
- Department of Epidemiology, Erasmus MC, University Medical Center, PO Box 2040, Rotterdam, CA, 3000, the Netherlands
| | - Dina Vojinovic
- Department of Epidemiology, Erasmus MC, University Medical Center, PO Box 2040, Rotterdam, CA, 3000, the Netherlands
- Section of Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
| | - Meike W Vernooij
- Department of Epidemiology, Erasmus MC, University Medical Center, PO Box 2040, Rotterdam, CA, 3000, the Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - P Eline Slagboom
- Section of Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
| | - Mohsen Ghanbari
- Department of Epidemiology, Erasmus MC, University Medical Center, PO Box 2040, Rotterdam, CA, 3000, the Netherlands
| | - Marian Beekman
- Section of Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
| | - Jeroen van der Grond
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Thomas Hankemeier
- Division of Analytical Biosciences, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | | | - M Arfan Ikram
- Department of Epidemiology, Erasmus MC, University Medical Center, PO Box 2040, Rotterdam, CA, 3000, the Netherlands.
| | - Shahzad Ahmad
- Department of Epidemiology, Erasmus MC, University Medical Center, PO Box 2040, Rotterdam, CA, 3000, the Netherlands
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12
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Zhang Z, Cao B, Wu Q. Causality of Genetically Determined Metabolites on Chronic Kidney Disease: A Two-Sample Mendelian Randomization Study In Silico. Metab Syndr Relat Disord 2024. [PMID: 38742978 DOI: 10.1089/met.2024.0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024] Open
Abstract
Introduction: Chronic kidney disease (CKD) is associated with metabolic disorders. However, the evidence for the causality of circulating metabolites to promote or prevent CKD is still lacking. Methods: The two-sample Mendelian randomization (MR) analysis was conducted to evaluate the latent causal relationship between the genetically proxied 486 blood metabolites and CKD. Genome-wide association study (GWAS) data for exposures were derived from 7824 European GWAS on metabolite levels, which have been extensively utilized in the medical field to elucidate the mechanisms underlying disease onset and progression. The random inverse variance weighted (IVW) is the primary analysis for causality analysis while MR-Egger and weighted median as complementary analyses. For the further identification of metabolites, reverse MR and linkage disequilibrium score regression were performed for further evaluation. The drug target for N-acetylornithine was subsequently supplemented into the analysis, with MR and colocalization analysis being utilized. Key metabolic pathways were identified via MetaboAnalyst 4.0 (https://www.metaboanalyst.ca/) online website. Results: N-acetylornithine was identified as a reliable metabolite that increases the susceptibility to estimated glomerular filtration rate (eGFR) decrease (β = 0.047; 95% confidence interval: -0.068 to -0.026; PIVW = 1.5E-5). The "glyoxylate and dicarboxylate metabolism" pathway showed significant relevance to CKD development (P = 6E-4), whereas the "glycine, serine, and threonine metabolism" pathway was also recognized as associated with CKD by general practitioners (P = 7E-4). Colocalization analysis revealed a robust genetic link between N-acetylornithine and both CKD and eGFR, with 85.1% and 99.4% colocalization rates, respectively. IVW-MR analysis substantiated these findings with a significant positive association for CKD (odds ratio = 1.43, P = 4.7E-5) and a negative correlation with eGFR (b = -0.04, P = 1.13E-31). Conclusions: MR was utilized to explore the potential causal links between 61 genetic serum metabolites and CKD. N-acetylornithine and NAT8 were further explored as a potential therapeutic target for CKD treatment.
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Affiliation(s)
- Zekai Zhang
- Second College of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Beibei Cao
- Academy of Paediatrics, Nanjing Medical University, Nanjing, China
| | - Qiutong Wu
- Second College of Clinical Medicine, Nanjing Medical University, Nanjing, China
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13
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Jieru P, Zhang S, Cai L, Long W, Wang Y, Zhang L, Dong Y, Zhang W, Liao J, Yang C. Dietary choline intake and health outcomes in U.S. adults: exploring the impact on cardiovascular disease, cancer prevalence, and all-cause mortality. JOURNAL OF HEALTH, POPULATION, AND NUTRITION 2024; 43:59. [PMID: 38711145 DOI: 10.1186/s41043-024-00528-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 02/16/2024] [Indexed: 05/08/2024]
Abstract
BACKGROUND Choline, an indispensable nutrient, plays a pivotal role in various physiological processes. The available evidence regarding the nexus between dietary choline intake and health outcomes, encompassing cardiovascular disease (CVD), cancer, and all-cause mortality, is limited and inconclusive. This study aimed to comprehensively explore the relationship between dietary choline intake and the aforementioned health outcomes in adults aged > 20 years in the U.S. METHODS This study utilized data from the National Health and Nutrition Examination Survey between 2011 and 2018. Dietary choline intake was evaluated using two 24-h dietary recall interviews. CVD and cancer status were determined through a combination of standardized medical status questionnaires and self-reported physician diagnoses. Mortality data were gathered from publicly available longitudinal Medicare and mortality records. The study utilized survey-weighted logistic and Cox regression analyses to explore the associations between choline consumption and health outcomes. Restricted cubic spline (RCS) analysis was used for dose‒response estimation and for testing for nonlinear associations. RESULTS In our study of 14,289 participants (mean age 48.08 years, 47.71% male), compared with those in the lowest quintile (Q1), the adjusted odds ratios (ORs) of CVD risk in the fourth (Q4) and fifth (Q5) quintiles of choline intake were 0.70 (95% CI 0.52, 0.95) and 0.65 (95% CI 0.47, 0.90), respectively (p for trend = 0.017). Each 100 mg increase in choline intake was associated with a 9% reduced risk of CVD. RCS analysis revealed a linear correlation between choline intake and CVD risk. Moderate choline intake (Q3) was associated with a reduced risk of mortality, with an HR of 0.75 (95% CI 0.60-0.94) compared with Q1. RCS analysis demonstrated a significant nonlinear association between choline intake and all-cause mortality (P for nonlinearity = 0.025). The overall cancer prevalence association was nonsignificant, except for colon cancer, where each 100 mg increase in choline intake indicated a 23% reduced risk. CONCLUSION Elevated choline intake demonstrates an inverse association with CVD and colon cancer, while moderate consumption exhibits a correlated reduction in mortality. Additional comprehensive investigations are warranted to elucidate the broader health implications of choline.
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Affiliation(s)
- Peng Jieru
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Shanshan Zhang
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Lin Cai
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Non-communicable Diseases Research Center, West China-PUMC C.C. Chen Institute of Health, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Wencheng Long
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yueshan Wang
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Lu Zhang
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yao Dong
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Wenqi Zhang
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Juan Liao
- Department of Gastroenterology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
- Non-communicable Diseases Research Center, West China-PUMC C.C. Chen Institute of Health, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Chunxia Yang
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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14
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Xu Y, Wang Y, Zhao Q, Chen B, Wang N, Zhang T, Jiang Y, Wu Y, He N, Zhao G, Liu X. Dairy products intake and prevalence, incidence, and recovery of non-alcoholic fatty liver disease in Chinese population. Hepatol Int 2024; 18:529-539. [PMID: 38409495 DOI: 10.1007/s12072-024-10638-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 01/03/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is a growing public health concern. Modifiable factors such as diet and lifestyle are of research interest in preventing or reversing the disease. The relationship between dairy products and NAFLD remains unclear. METHODS In this cohort study, 36,122 participants aged 20-74 were enrolled by multi-stage, stratified, randomized cluster sampling from 2016 to 2017. A total of 25,085 participants finished at least one follow-up visit from 2019 to 2023. Dairy intake was collected by food frequency questionnaire at baseline. NAFLD was defined as fatty liver diagnosed by ultrasonography with excessive alcohol drink excluded. Logistic regression and Cox proportional hazard models were used to analyze the association between dairy intake and NAFLD. RESULTS A total of 34,040 participants were included in the baseline analysis. The prevalence of NAFLD was inversely associated with dairy intake (OR>7vs 0 servings/week = 0.91, 95% CI 0.84-0.98; ORper serving/day increase = 0.95, 95% CI 0.92-0.99). 20,460 participants entered the follow-up analysis. Among 12,204 without NAFLD at baseline, 4,470 developed NAFLD after a median time of 4.3 years. The incidence of NAFLD was inversely associated with dairy intake (HR>7 vs 0 servings/week = 0.89, 95% CI 0.81-0.98; HRper serving/day increase = 0.94, 95% CI 0.89-0.99). Among 8256 with NAFLD at baseline, 3,885 recovered after 4.2-year follow-up. Total dairy intake did not show significant associations with recovery of NAFLD, and the HRs (95% CI) were 0.96 (0.87-1.06) for > 7 servings/week and 0.98 (0.93-1.03) for per serving/day increase. CONCLUSION Dairy product intake of more than one serving per day was associated with a lower prevalence and incidence of NAFLD in Chinese population. However, total dairy intake did not show significant association in NAFLD reversal.
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Affiliation(s)
- Yurou Xu
- The Key Laboratory of Public Health Safety of Ministry of Education, Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Youyi Wang
- The Key Laboratory of Public Health Safety of Ministry of Education, Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Qi Zhao
- The Key Laboratory of Public Health Safety of Ministry of Education, Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Bo Chen
- The Key Laboratory of Public Health Safety of Ministry of Education, Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Na Wang
- The Key Laboratory of Public Health Safety of Ministry of Education, Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Tiejun Zhang
- The Key Laboratory of Public Health Safety of Ministry of Education, Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Yonggen Jiang
- Songjiang District Center for Disease Control and Prevention, Shanghai, 201600, China
| | - Yiling Wu
- Songjiang District Center for Disease Control and Prevention, Shanghai, 201600, China
| | - Na He
- The Key Laboratory of Public Health Safety of Ministry of Education, Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Genming Zhao
- The Key Laboratory of Public Health Safety of Ministry of Education, Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Xing Liu
- The Key Laboratory of Public Health Safety of Ministry of Education, Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032, China.
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Majumder S, Kiritkumar Makwana R, Shetty V, Mukherjee S, Narayan P. Cardiovascular diseases and the heart-gut cross talk. Indian Heart J 2024; 76:94-100. [PMID: 38070671 PMCID: PMC11143509 DOI: 10.1016/j.ihj.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/20/2023] [Accepted: 12/02/2023] [Indexed: 06/01/2024] Open
Abstract
The purpose of this narrative review is to provide a comprehensive overview of current research on heart-gut cross talk and its implications for cardiovascular disease. To uncover relevant preclinical and clinical research examining heart-gut cross talk, a thorough literature search was undertaken utilising electronic databases. The chosen publications were critically examined, and major findings were synthesised to offer a thorough perspective on the subject. We want to synthesise the most recent study findings, explain the underlying mechanisms, and provide potential treatment techniques. By exploring bidirectional connection between the heart and the gut, we shed light on novel future options for the prevention and treatment of cardiovascular diseases. The heart-gut cross talk is an exciting field of study with implications for cardiovascular disease. Understanding the complex connection between the heart and the gastrointestinal tract may lead to the development of novel therapeutic targets and therapies for the prevention and management of cardiovascular diseases. Future research should concentrate on identifying the specific processes driving this crosstalk as well as assessing the efficacy of therapies targeting the gut microbiota and the gut-brain axis in improving cardiovascular outcomes.
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Affiliation(s)
| | | | - Varun Shetty
- Department of Cardiac Surgery, Narayana Health, India
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16
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Charitos IA, Aliani M, Tondo P, Venneri M, Castellana G, Scioscia G, Castellaneta F, Lacedonia D, Carone M. Biomolecular Actions by Intestinal Endotoxemia in Metabolic Syndrome. Int J Mol Sci 2024; 25:2841. [PMID: 38474087 DOI: 10.3390/ijms25052841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/19/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Metabolic syndrome (MetS) is a combination of metabolic disorders that concurrently act as factors promoting systemic pathologies such as atherosclerosis or diabetes mellitus. It is now believed to encompass six main interacting conditions: visceral fat, imbalance of lipids (dyslipidemia), hypertension, insulin resistance (with or without impairing both glucose tolerance and fasting blood sugar), and inflammation. In the last 10 years, there has been a progressive interest through scientific research investigations conducted in the field of metabolomics, confirming a trend to evaluate the role of the metabolome, particularly the intestinal one. The intestinal microbiota (IM) is crucial due to the diversity of microorganisms and their abundance. Consequently, IM dysbiosis and its derivate toxic metabolites have been correlated with MetS. By intervening in these two factors (dysbiosis and consequently the metabolome), we can potentially prevent or slow down the clinical effects of the MetS process. This, in turn, may mitigate dysregulations of intestinal microbiota axes, such as the lung axis, thereby potentially alleviating the negative impact on respiratory pathology, such as the chronic obstructive pulmonary disease. However, the biomolecular mechanisms through which the IM influences the host's metabolism via a dysbiosis metabolome in both normal and pathological conditions are still unclear. In this study, we seek to provide a description of the knowledge to date of the IM and its metabolome and the factors that influence it. Furthermore, we analyze the interactions between the functions of the IM and the pathophysiology of major metabolic diseases via local and systemic metabolome's relate endotoxemia.
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Affiliation(s)
- Ioannis Alexandros Charitos
- Istituti Clinici Scientifici Maugeri IRCCS, Pneumology and Respiratory Rehabilitation Unit, "Istitute" of Bari, 70124 Bari, Italy
| | - Maria Aliani
- Istituti Clinici Scientifici Maugeri IRCCS, Pneumology and Respiratory Rehabilitation Unit, "Istitute" of Bari, 70124 Bari, Italy
| | - Pasquale Tondo
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy
- Institute of Respiratory Diseases, Policlinico Riuniti of Foggia, 71122 Foggia, Italy
| | - Maria Venneri
- Istituti Clinici Scientifici Maugeri IRCCS, Genomics and Proteomics Laboratory, "Istitute" of Bari, 70124 Bari, Italy
| | - Giorgio Castellana
- Istituti Clinici Scientifici Maugeri IRCCS, Pneumology and Respiratory Rehabilitation Unit, "Istitute" of Bari, 70124 Bari, Italy
| | - Giulia Scioscia
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy
- Institute of Respiratory Diseases, Policlinico Riuniti of Foggia, 71122 Foggia, Italy
| | - Francesca Castellaneta
- School of Clinical Biochemistry and Pathology, University of Bari (Aldo Moro), 70124 Bari, Italy
| | - Donato Lacedonia
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy
- Institute of Respiratory Diseases, Policlinico Riuniti of Foggia, 71122 Foggia, Italy
| | - Mauro Carone
- Istituti Clinici Scientifici Maugeri IRCCS, Pneumology and Respiratory Rehabilitation Unit, "Istitute" of Bari, 70124 Bari, Italy
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17
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Luqman A, He M, Hassan A, Ullah M, Zhang L, Rashid Khan M, Din AU, Ullah K, Wang W, Wang G. Mood and microbes: a comprehensive review of intestinal microbiota's impact on depression. Front Psychiatry 2024; 15:1295766. [PMID: 38404464 PMCID: PMC10884216 DOI: 10.3389/fpsyt.2024.1295766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 01/22/2024] [Indexed: 02/27/2024] Open
Abstract
Depression is considered a multifaceted and intricate mental disorder of growing concern due to its significant impact on global health issues. The human gut microbiota, also known as the "second brain," has an important role in the CNS by regulating it through chemical, immunological, hormonal, and neurological processes. Various studies have found a significant bidirectional link between the brain and the gut, emphasizing the onset of depression therapies. The biological and molecular processes underlying depression and microbiota are required, as the bidirectional association may represent a novel study. However, profound insights into the stratification and diversity of the gut microbiota are still uncommon. This article investigates the emerging evidence of a bacterial relationship between the gut and the brain's neurological system and its potential pathogenicity and relevance. The interplay of microbiota, immune system, nervous system neurotransmitter synthesis, and neuroplasticity transitions is also widely studied. The consequences of stress, dietary fibers, probiotics, prebiotics, and antibiotics on the GB axis are being studied. Multiple studies revealed the processes underlying this axis and led to the development of effective microbiota-based drugs for both prevention and treatment. Therefore, the results support the hypothesis that gut microbiota influences depression and provide a promising area of research for an improved knowledge of the etiology of the disease and future therapies.
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Affiliation(s)
- Ameer Luqman
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, National and Local Joint Engineering Laboratory for Vascular Implant, Bioengineering College of Chongqing University, Chongqing, China
| | - Mei He
- Chongqing University Cancer Hospital, Chongqing, China
| | - Adil Hassan
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, National and Local Joint Engineering Laboratory for Vascular Implant, Bioengineering College of Chongqing University, Chongqing, China
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices, Chongqing University of Science and Technology, Chongqing, China
- JinFeng Laboratory, Chongqing, China
| | - Mehtab Ullah
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, National and Local Joint Engineering Laboratory for Vascular Implant, Bioengineering College of Chongqing University, Chongqing, China
| | | | - Muhammad Rashid Khan
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, National and Local Joint Engineering Laboratory for Vascular Implant, Bioengineering College of Chongqing University, Chongqing, China
| | - Ahmad Ud Din
- Plants for Human Health Institute, Department of Food, Bioprocessing and Nutrition Sciences, North Carolina State University, Kannapolis, NC, United States
| | - Kamran Ullah
- Department of Biology, The University of Haripur, Haripur, Pakistan
| | - Wei Wang
- Chongqing University Cancer Hospital, Chongqing, China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, National and Local Joint Engineering Laboratory for Vascular Implant, Bioengineering College of Chongqing University, Chongqing, China
- JinFeng Laboratory, Chongqing, China
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18
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Zhou X, Chen R, Cai Y, Chen Q. Fecal Microbiota Transplantation: A Prospective Treatment for Type 2 Diabetes Mellitus. Diabetes Metab Syndr Obes 2024; 17:647-659. [PMID: 38347911 PMCID: PMC10860394 DOI: 10.2147/dmso.s447784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/23/2024] [Indexed: 02/15/2024] Open
Abstract
Purpose of Review The aim of this review is to summarize the role of gastrointestinal microbiome (GM) in the development of type 2 diabetes mellitus (T2DM). Besides, we discuss the feasibility of applying FMT in the treatment of T2DM and propose a series of processes to refine the use of FMT in the treatment of T2DM. Recent Findings T2DM is a metabolic disease which is connected with the GM. According to many researches, GM can produce a variety of metabolites such as bile acid, short chain fatty acids, lipopolysaccharides and trimethylamine oxide which play an important role in metabolism. FMT is a method to regulate GM and has been observed to be effective in the treatment of metabolic diseases such as T2DM in some mouse models and people. However, there is still a lack of direct evidence for the use of FMT in the treatment of T2DM, and the process of FMT is not standardized. Summary Dysregulation of GM is closely related to the development of T2DM. Promoting the conversion of GM in T2DM patients to normal population through FMT can reduce insulin resistance and lower their blood glucose level, which is an optional treatment for T2DM patients in the future. At present, the feasibility and limitations of applying FMT to the treatment of T2DM need to be further studied.
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Affiliation(s)
- Xiaolan Zhou
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Rumeng Chen
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, People’s Republic of China
| | - Yichen Cai
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Qiu Chen
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
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19
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Su C, Wang J, Luo H, Chen J, Lin F, Mo J, Xiong F, Zha L. Gut Microbiota Plays Essential Roles in Soyasaponin's Preventive Bioactivities against Steatohepatitis in the Methionine and Choline Deficient (MCD) Diet-Induced Non-Alcoholic Steatohepatitis (NASH) Mice. Mol Nutr Food Res 2024; 68:e2300561. [PMID: 38234006 DOI: 10.1002/mnfr.202300561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 11/24/2023] [Indexed: 01/19/2024]
Abstract
SCOPE Gut microbiota (GM) is involved in nonalcoholic steatohepatitis (NASH) development. Phytochemicals soyasaponins can prevent NASH possibly by modulating GM. This study aims to investigate the preventive bioactivities of soyasaponin monomers (SS-A1 and SS-Bb) against NASH and explores the mechanisms by targeting GM. METHODS AND RESULTS Male C57BL/6 mice are fed with methionine and choline deficient (MCD) diet containing SS-A1 , SS-Bb, or not for 16 weeks. Antibiotics-treated pseudo germ-free (PGF) mice are fed with MCD diet containing SS-A1 , SS-Bb, or not for 8 weeks. GM is determined by 16S rRNA amplicon sequencing. Bile acids (BAs) are measured by UPLC-MS/MS. In NASH mice, SS-A1 and SS-Bb alleviate steatohepatitis and fibrosis, reduce ALT, AST, and LPS in serum, decrease TNF-α, IL-6, α-SMA, triglycerides, and cholesterol in liver. SS-A1 and SS-Bb decrease Firmicutes, Erysipelotrichaceae, unidentified-Clostridiales, Eggerthellaceae, Atopobiaceae, Aerococcus, Jeotgalicoccus, Gemella, Rikenella, increase Proteobacteria, Verrucomicrobia, Akkermansiaceae, Romboutsia, and Roseburia. SS-A1 and SS-Bb alter BAs composition in liver, serum, and feces, activate farnesoid X receptor (FXR) in liver and ileum, increase occludin and ZO-1 in intestine. However, GM clearance abrogates the preventive bioactivities of SS-A1 and SS-Bb against NASH. CONCLUSION GM plays essential roles in soyasaponin's preventive bioactivities against steatohepatitis in MCD diet-induced NASH mice.
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Affiliation(s)
- Chuhong Su
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, National Medical Products Administration (NMPA), Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Jiexian Wang
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, National Medical Products Administration (NMPA), Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Huiyu Luo
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, National Medical Products Administration (NMPA), Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Junbin Chen
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, National Medical Products Administration (NMPA), Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Fengjuan Lin
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, National Medical Products Administration (NMPA), Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Jiaqi Mo
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, National Medical Products Administration (NMPA), Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Fei Xiong
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, National Medical Products Administration (NMPA), Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
- Department of Clinical Nutrition, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510280, P. R. China
| | - Longying Zha
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, National Medical Products Administration (NMPA), Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
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20
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Huang PH, Chen DQ, Chen YW, Shih MK, Lee BH, Tain YL, Hsieh CW, Hou CY. Evaluation of the Feasibility of In Vitro Metabolic Interruption of Trimethylamine with Resveratrol Butyrate Esters and Its Purified Monomers. Molecules 2024; 29:429. [PMID: 38257342 PMCID: PMC10820948 DOI: 10.3390/molecules29020429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/07/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Resveratrol (RSV), obtained from dietary sources, has been shown to reduce trimethylamine oxide (TMAO) levels in humans, and much research indicates that TMAO is recognized as a risk factor for cardiovascular disease. Therefore, this study investigated the effects of RSV and RSV-butyrate esters (RBE) on the proliferation of co-cultured bacteria and HepG2 cell lines, respectively, and also investigated the changes in trimethylamine (TMA) and TMOA content in the medium and flavin-containing monooxygenase-3 (FMO3) gene expression. This study revealed that 50 µg/mL of RBE could increase the population percentage of Bifidobacterium longum at a rate of 53%, while the rate was 48% for Clostridium asparagiforme. In contrast, co-cultivation of the two bacterial strains effectively reduced TMA levels from 561 ppm to 449 ppm. In addition, regarding TMA-induced HepG2 cell lines, treatment with 50 μM each of RBE, 3,4'-di-O-butanoylresveratrol (ED2), and 3-O-butanoylresveratrol (ED4) significantly reduced FMO3 gene expression from 2.13 to 0.40-1.40, which would also contribute to the reduction of TMAO content. This study demonstrated the potential of RBE, ED2, and ED4 for regulating TMA metabolism in microbial co-cultures and cell line cultures, which also suggests that the resveratrol derivative might be a daily dietary supplement that will be beneficial for health promotion in the future.
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Affiliation(s)
- Ping-Hsiu Huang
- School of Food, Jiangsu Food and Pharmaceutical Science College, No. 4, Meicheng Road, Higher Education Park, Huai’an 223003, China;
| | - De-Quan Chen
- Department of Seafood Science, College of Hydrosphere, National Kaohsiung, University of Science and Technology, Kaohsiung 81157, Taiwan;
| | - Yu-Wei Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan; (Y.-W.C.); (C.-W.H.)
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan;
| | - Ming-Kuei Shih
- Graduate Institute of Food Culture and Innovation, National Kaohsiung University of Hospitality and Tourism, Kaohsiung 812301, Taiwan;
| | - Bao-Hong Lee
- Department of Horticulture, National Chiayi University, Chiayi 60004, Taiwan;
| | - You-Lin Tain
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan;
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
| | - Chang-Wei Hsieh
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan; (Y.-W.C.); (C.-W.H.)
- Department of Medical Research, China Medical University Hospital, Taichung 40447, Taiwan
| | - Chih-Yao Hou
- Department of Seafood Science, College of Hydrosphere, National Kaohsiung, University of Science and Technology, Kaohsiung 81157, Taiwan;
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21
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Oh J, Kim J, Lee S, Park G, Baritugo KAG, Han KJ, Lee S, Sung GH. 1H NMR Serum Metabolomic Change of Trimethylamine N-oxide (TMAO) Is Associated with Alcoholic Liver Disease Progression. Metabolites 2024; 14:39. [PMID: 38248842 PMCID: PMC10818766 DOI: 10.3390/metabo14010039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/28/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024] Open
Abstract
Without early detection and treatment, chronic and excessive alcohol consumption can lead to the development of alcoholic liver disease (ALD). With this in mind, we exploit the recent concept of the liver-gut axis and analyze the serum profile of ALD patients for identification of microbiome-derived metabolites that can be used as diagnostic biomarkers for onset of ALD. 1H-NMR was used to analyze serum metabolites of 38 ALD patients that were grouped according to their Child-Turcotte-Pugh scores (CTP): class A (CTP-A; 19), class B(CTP-B; 10), and class C (CTP-C; 9). A partial least squares-discriminant analysis (PLS-DA) and a variable importance of projection (VIP) score were used to identify significant metabolites. A receiver operating characteristic (ROC) curve and correlation heatmap were used to evaluate the predictability of identified metabolites as ALD biomarkers. Among 42 identified metabolites, 6 were significantly correlated to exacerbation of ALD. As ALD progressed in CTP-C, the levels of trimethylamine N-oxide (TMAO), malate, tyrosine, and 2-hydroxyisovalerate increased, while isobutyrate and isocitrate decreased. Out of six metabolites, elevated levels of TMAO and its precursors (carnitine, betaine, choline) were associated with severity of ALD. This indicates that TMAO can be used as an effective biomarker for the diagnosis of ALD progression.
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Affiliation(s)
- Junsang Oh
- Biomedical Institute of Mycological Resource, International St. Mary’s Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea; (J.O.); (J.K.); (K.-A.G.B.)
- Department of Convergence Science, College of Medicine, Catholic Kwandong University, Gangneung-si 25601, Gang-won-do, Republic of Korea
| | - Jayoung Kim
- Biomedical Institute of Mycological Resource, International St. Mary’s Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea; (J.O.); (J.K.); (K.-A.G.B.)
- Department of Laboratory Medicine, International St. Mary’s Hospital and College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea
| | - Sanghak Lee
- Department of Biomedical Science, Graduate School, Catholic Kwandong University, Gangneung-si 25601, Gang-won-do, Republic of Korea; (S.L.); (G.P.)
| | - Gyubin Park
- Department of Biomedical Science, Graduate School, Catholic Kwandong University, Gangneung-si 25601, Gang-won-do, Republic of Korea; (S.L.); (G.P.)
| | - Kei-Anne Garcia Baritugo
- Biomedical Institute of Mycological Resource, International St. Mary’s Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea; (J.O.); (J.K.); (K.-A.G.B.)
- Department of Convergence Science, College of Medicine, Catholic Kwandong University, Gangneung-si 25601, Gang-won-do, Republic of Korea
| | - Ki Jun Han
- Department of Internal Medicine, International St. Mary’s Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea;
| | - Sangheun Lee
- Biomedical Institute of Mycological Resource, International St. Mary’s Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea; (J.O.); (J.K.); (K.-A.G.B.)
- Department of Internal Medicine, International St. Mary’s Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea;
| | - Gi-Ho Sung
- Biomedical Institute of Mycological Resource, International St. Mary’s Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea; (J.O.); (J.K.); (K.-A.G.B.)
- Department of Convergence Science, College of Medicine, Catholic Kwandong University, Gangneung-si 25601, Gang-won-do, Republic of Korea
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22
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Duncanson K, Williams G, Hoedt EC, Collins CE, Keely S, Talley NJ. Diet-microbiota associations in gastrointestinal research: a systematic review. Gut Microbes 2024; 16:2350785. [PMID: 38725230 PMCID: PMC11093048 DOI: 10.1080/19490976.2024.2350785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 04/29/2024] [Indexed: 05/16/2024] Open
Abstract
Interactions between diet and gastrointestinal microbiota influence health status and outcomes. Evaluating these relationships requires accurate quantification of dietary variables relevant to microbial metabolism, however current dietary assessment methods focus on dietary components relevant to human digestion only. The aim of this study was to synthesize research on foods and nutrients that influence human gut microbiota and thereby identify knowledge gaps to inform dietary assessment advancements toward better understanding of diet-microbiota interactions. Thirty-eight systematic reviews and 106 primary studies reported on human diet-microbiota associations. Dietary factors altering colonic microbiota included dietary patterns, macronutrients, micronutrients, bioactive compounds, and food additives. Reported diet-microbiota associations were dominated by routinely analyzed nutrients, which are absorbed from the small intestine but analyzed for correlation to stool microbiota. Dietary derived microbiota-relevant nutrients are more challenging to quantify and underrepresented in included studies. This evidence synthesis highlights advancements needed, including opportunities for expansion of food composition databases to include microbiota-relevant data, particularly for human intervention studies. These advances in dietary assessment methodology will facilitate translation of microbiota-specific nutrition therapy to practice.
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Affiliation(s)
- Kerith Duncanson
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
- Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, NSW, Australia
| | - Georgina Williams
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
- Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, NSW, Australia
| | - Emily C. Hoedt
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
- Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, NSW, Australia
| | - Clare E. Collins
- Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, NSW, Australia
| | - Simon Keely
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
- Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, NSW, Australia
| | - Nicholas J. Talley
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
- Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, NSW, Australia
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Yan M, Man S, Sun B, Ma L, Guo L, Huang L, Gao W. Gut liver brain axis in diseases: the implications for therapeutic interventions. Signal Transduct Target Ther 2023; 8:443. [PMID: 38057297 PMCID: PMC10700720 DOI: 10.1038/s41392-023-01673-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/10/2023] [Accepted: 09/28/2023] [Indexed: 12/08/2023] Open
Abstract
Gut-liver-brain axis is a three-way highway of information interaction system among the gastrointestinal tract, liver, and nervous systems. In the past few decades, breakthrough progress has been made in the gut liver brain axis, mainly through understanding its formation mechanism and increasing treatment strategies. In this review, we discuss various complex networks including barrier permeability, gut hormones, gut microbial metabolites, vagus nerve, neurotransmitters, immunity, brain toxic metabolites, β-amyloid (Aβ) metabolism, and epigenetic regulation in the gut-liver-brain axis. Some therapies containing antibiotics, probiotics, prebiotics, synbiotics, fecal microbiota transplantation (FMT), polyphenols, low FODMAP diet and nanotechnology application regulate the gut liver brain axis. Besides, some special treatments targeting gut-liver axis include farnesoid X receptor (FXR) agonists, takeda G protein-coupled receptor 5 (TGR5) agonists, glucagon-like peptide-1 (GLP-1) receptor antagonists and fibroblast growth factor 19 (FGF19) analogs. Targeting gut-brain axis embraces cognitive behavioral therapy (CBT), antidepressants and tryptophan metabolism-related therapies. Targeting liver-brain axis contains epigenetic regulation and Aβ metabolism-related therapies. In the future, a better understanding of gut-liver-brain axis interactions will promote the development of novel preventative strategies and the discovery of precise therapeutic targets in multiple diseases.
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Affiliation(s)
- Mengyao Yan
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, 300457, Tianjin, China
| | - Shuli Man
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, 300457, Tianjin, China.
| | - Benyue Sun
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, 300457, Tianjin, China
| | - Long Ma
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, 300457, Tianjin, China
| | - Lanping Guo
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, 100700, Beijing, China.
| | - Luqi Huang
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, 100700, Beijing, China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Weijin Road, 300072, Tianjin, China.
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24
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Jayachandran M, Qu S. Non-alcoholic fatty liver disease and gut microbial dysbiosis- underlying mechanisms and gut microbiota mediated treatment strategies. Rev Endocr Metab Disord 2023; 24:1189-1204. [PMID: 37840104 DOI: 10.1007/s11154-023-09843-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/05/2023] [Indexed: 10/17/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is by far the most prevalent form of liver disease worldwide. It's also the leading cause of liver-related hospitalizations and deaths. Furthermore, there is a link between obesity and NAFLD risk. A projected 25% of the world's population grieves from NAFLD, making it the most common chronic liver disorder. Several factors, such as obesity, oxidative stress, and insulin resistance, typically accompany NAFLD. Weight loss, lipid-lowering agents, thiazolidinediones, and metformin help prominently control NAFLD. Interestingly, pre-clinical studies demonstrate gut microbiota's potential causal role in NAFLD. Increased intestinal permeability and unhindered transport of microbial metabolites into the liver are the major disruptions due to gut microbiome dysbiosis, contributing to the development of NAFLD by dysregulating the gut-liver axis. Hence, altering the pathogenic bacterial population using probiotics, prebiotics, synbiotics, and fecal microbiota transplantation (FMT) could benefit patients with NAFLD. Therefore, it is crucial to acknowledge the importance of microbiota-mediated therapeutic approaches for NAFLD and comprehend the underlying mechanisms that establish a connection between NAFLD and gut microbiota. This review provides a comprehensive overview of the affiliation between dysbiosis of gut microbiota and the progress of NAFLD, as well as the potential benefits of prebiotic, probiotic, synbiotic supplementation, and FMT in obese individuals with NAFLD.
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Affiliation(s)
- Muthukumaran Jayachandran
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Shen Qu
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
- Shanghai center of Thyroid diseases, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
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25
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Khan MQ, Hassan S, Lizaola-Mayo BC, Bhat M, Watt KD. Navigating the "specific etiology" steatohepatitis category: Evaluation and management of nonalcoholic/nonmetabolic dysfunction-associated steatohepatitis. Hepatology 2023:01515467-990000000-00637. [PMID: 37939197 DOI: 10.1097/hep.0000000000000674] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/26/2023] [Indexed: 11/10/2023]
Affiliation(s)
- Mohammad Qasim Khan
- Department of Internal Medicine, Division of Gastroenterology, University of Western Ontario, London, Ontario, Canada
| | - Sara Hassan
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Mayo Clinic, Rochester, Minnesota, USA
| | - Blanca C Lizaola-Mayo
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic, Phoenix, Arizona, USA
| | - Mamatha Bhat
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Toronto, Toronto, Ontario, Canada
| | - Kymberly D Watt
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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Ruan H, Huang Y, Yue B, Zhang Y, Lv J, Miao K, Zhang D, Luo J, Yang M. Insights into the intestinal toxicity of foodborne mycotoxins through gut microbiota: A comprehensive review. Compr Rev Food Sci Food Saf 2023; 22:4758-4785. [PMID: 37755064 DOI: 10.1111/1541-4337.13242] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/28/2023]
Abstract
Mycotoxins, which are fungal metabolites, pose a significant global food safety concern by extensively contaminating food and feed, thereby seriously threatening public health and economic development. Many foodborne mycotoxins exhibit potent intestinal toxicity. However, the mechanisms underlying mycotoxin-induced intestinal toxicity are diverse and complex, and effective prevention or treatment methods for this condition have not yet been established in clinical and animal husbandry practices. In recent years, there has been increasing attention to the role of gut microbiota in the occurrence and development of intestinal diseases. Hence, this review aims to provide a comprehensive summary of the intestinal toxicity mechanisms of six common foodborne mycotoxins. It also explores novel toxicity mechanisms through the "key gut microbiota-key metabolites-key targets" axis, utilizing multiomics and precision toxicology studies with a specific focus on gut microbiota. Additionally, we examine the potential beneficial effects of probiotic supplementation on mycotoxin-induced toxicity based on initial gut microbiota-mediated mycotoxicity. This review offers a systematic description of how mycotoxins impact gut microbiota, metabolites, and genes or proteins, providing valuable insights for subsequent toxicity studies of mycotoxins. Furthermore, it lays a theoretical foundation for preventing and treating intestinal toxicity caused by mycotoxins and advancing food safety practices.
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Affiliation(s)
- Haonan Ruan
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Key Laboratory of Reproductive Genetics (Ministry of Education) and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Ying Huang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Binyang Yue
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yuanyuan Zhang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jianxin Lv
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Kun Miao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Dan Zhang
- Key Laboratory of Reproductive Genetics (Ministry of Education) and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Jiaoyang Luo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Li J, Huang J, Lv Y, Ji H. Association between dietary intakes of B vitamins and nonalcoholic fatty liver disease in postmenopausal women: a cross-sectional study. Front Nutr 2023; 10:1272321. [PMID: 37927496 PMCID: PMC10621796 DOI: 10.3389/fnut.2023.1272321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/26/2023] [Indexed: 11/07/2023] Open
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) is increasingly common globally, particularly among postmenopausal women. Diet plays a fundamental role in the treatment of NAFLD. However, clinical research on the dietary intakes of B vitamins, specifically in postmenopausal women, is scant. Hence, it is imperative to study the impact of B vitamin dietary intake in postmenopausal women. Methods This study utilized National Health and Nutrition Examination Survey (NHANES) data for 668 postmenopausal women. Logistic regression analysis was conducted to investigate the association of the intakes of B vitamins with hepatic steatosis and liver fibrosis prevalence. The analysis accounted for various covariates and employed restricted cubic spline analysis to examine potential nonlinear relationships. Additionally, interactions among age, diabetes, and B-vitamin intakes, as well as the interaction between folate and vitamin B12 intake, were explored. Results Higher intakes of folate [0.30 (0.10-0.88)], choline [0.26 (0.07-0.95)], vitamin B1, and vitamin B2 were associated with a reduced risk of hepatic steatosis in postmenopausal women. The associations of niacin (P-nonlinear = 0.0003), vitamin B1 (P-nonlinear = 0.036), and vitamin B2 (P-nonlinear<0.0001) intakes with hepatic steatosis showed a nonlinear pattern. However, no significant associations were observed between the intakes of niacin, vitamin B6 and vitamin B12 and hepatic steatosis. Furthermore, there were no significant associations between B-vitamin intakes and liver fibrosis. No interaction effects were observed. Conclusion Dietary intakes of folate, choline, vitamin B1, and vitamin B2 may be associated with liver steatosis in postmenopausal women, these results suggest that optimizing the intake of these specific B vitamins may have a protective effect against liver steatosis in postmenopausal women, offering valuable insights into potential dietary strategies to promote their well-being.
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Affiliation(s)
- Jiajie Li
- Department of Hepatobiliary and Pancreatic Medicine, Infectious Disease. and Pathogen Biology Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Jingda Huang
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yanqing Lv
- Department of Hepatobiliary and Pancreatic Medicine, Infectious Disease. and Pathogen Biology Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Huifan Ji
- Department of Hepatobiliary and Pancreatic Medicine, Infectious Disease. and Pathogen Biology Center, The First Hospital of Jilin University, Changchun, Jilin, China
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Pan I, Issac PK, Rahman MM, Guru A, Arockiaraj J. Gut-Brain Axis a Key Player to Control Gut Dysbiosis in Neurological Diseases. Mol Neurobiol 2023:10.1007/s12035-023-03691-3. [PMID: 37851313 DOI: 10.1007/s12035-023-03691-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/02/2023] [Indexed: 10/19/2023]
Abstract
Parkinson's disease is a chronic neuropathy characterised by the formation of Lewy bodies (misfolded alpha-synuclein) in dopaminergic neurons of the substantia nigra and other parts of the brain. Dopaminergic neurons play a vital role in generating both motor and non-motor symptoms. Finding therapeutic targets for Parkinson's disease (PD) is hindered due to an incomplete understanding of the disease's pathophysiology. Existing evidence suggests that the gut microbiota participates in the pathogenesis of PD via immunological, neuroendocrine, and direct neural mechanisms. Gut microbial dysbiosis triggers the loss of dopaminergic neurons via mitochondrial dysfunction. Gut dysbiosis triggers bacterial overgrowth in the small intestine, which increases the permeability barrier and induces systemic inflammation. It results in excessive stimulation of the innate immune system. In addition to that, activation of enteric neurons and enteric glial cells initiates the aggregation of alpha-synuclein. This alpha-synucleinopathy thus affects all levels of the brain-gut axis, including the central, autonomic, and enteric nervous systems. Though the neurobiological signaling cascade between the gut microbiome and the central nervous system is poorly understood, gut microbial metabolites may serve as a promising therapeutic strategy for PD. This article summarises all the known possible ways of bidirectional signal communication, i.e., the "gut-brain axis," where microbes from the middle gut interact with the brain and vice versa, and highlights a unique way to treat neurodegenerative diseases by maintaining homeostasis. The tenth cranial nerve (vagus nerve) plays a significant part in this signal communication. However, the leading regulatory factor for this axis is a diet that helps with microbial colonisation and brain function. Short-chain fatty acids (SCFAs), derived from microbially fermented dietary fibres, link host nutrition to maintain intestinal homeostasis. In addition to that, probiotics modulate cognitive function and the metabolic and behavioural conditions of the body. As technology advances, new techniques will emerge to study the tie-up between gut microbes and neuronal diseases.
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Affiliation(s)
- Ieshita Pan
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, Tamil Nadu, 602105, India.
| | - Praveen Kumar Issac
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, Tamil Nadu, 602105, India
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Ajay Guru
- Department of Cariology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
| | - Jesu Arockiaraj
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulatur, Chengalpattu District, Tamil Nadu, 603203, India.
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Staskova L, Marx W, Dawson SL, O'Hely M, Mansell T, Saffery R, Burgner D, Collier F, Novakovic B, Vuillermin P, Field CJ, Dewey D, Ponsonby AL. The distribution of dietary choline intake and serum choline levels in Australian women during pregnancy and associated early life factors. Eur J Nutr 2023; 62:2855-2872. [PMID: 37378694 PMCID: PMC10468947 DOI: 10.1007/s00394-023-03186-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 05/31/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND Maternal dietary choline has a central role in foetal brain development and may be associated with later cognitive function. However, many countries are reporting lower than recommended intake of choline during pregnancy. METHODS Dietary choline was estimated using food frequency questionnaires in pregnant women participating in population-derived birth cohort, the Barwon Infant Study (BIS). Dietary choline is reported as the sum of all choline-containing moieties. Serum total choline-containing compounds (choline-c), phosphatidylcholine and sphingomyelin were measured using nuclear magnetic resonance metabolomics in the third trimester. The main form of analysis was multivariable linear regression. RESULTS The mean daily dietary choline during pregnancy was 372 (standard deviation (SD) 104) mg/day. A total of 236 women (23%) had adequate choline intake (440 mg/day) based on the Australian and New Zealand guidelines, and 27 women (2.6%) took supplemental choline ([Formula: see text] 50 mg/dose) daily during pregnancy. The mean serum choline-c in pregnant women was 3.27 (SD 0.44) mmol/l. Ingested choline and serum choline-c were not correlated (R2) = - 0.005, p = 0.880. Maternal age, maternal weight gain in pregnancy, and a pregnancy with more than one infant were associated with higher serum choline-c, whereas gestational diabetes and environmental tobacco smoke during preconception and pregnancy were associated with lower serum choline-c. Nutrients or dietary patterns were not associated with variation in serum choline-c. CONCLUSION In this cohort, approximately one-quarter of women met daily choline recommendations during pregnancy. Future studies are needed to understand the potential impact of low dietary choline intake during pregnancy on infant cognition and metabolic intermediaries.
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Affiliation(s)
- Lada Staskova
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 30 Royal Parade, Parkville, VIC, 3052, Australia
| | - Wolfgang Marx
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 30 Royal Parade, Parkville, VIC, 3052, Australia
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, VIC, 3220, Australia
| | - Samantha L Dawson
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, VIC, 3220, Australia
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, 3052, Australia
| | - Martin O'Hely
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, VIC, 3220, Australia
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, 3052, Australia
| | - Toby Mansell
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, 3052, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Richard Saffery
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, 3052, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, 3010, Australia
| | - David Burgner
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, 3052, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Fiona Collier
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, VIC, 3220, Australia
| | - Boris Novakovic
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, 3052, Australia
| | - Peter Vuillermin
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, VIC, 3220, Australia
- Barwon Health, Geelong, VIC, 3220, Australia
| | - Catherine J Field
- Department of Agriculture, Food and Nutritional Science, University of Alberta, 4-126C Li Ka Shing Centre for Research, Edmonton, AB, T6G 2H5, Canada
| | - Deborah Dewey
- Department of Pediatrics, Cumming School of Medicine, Alberta Children's Hospital, Calgary, AB, T3B 6A8, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4Z6, Canada
- Owerko Centre, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Anne-Louise Ponsonby
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 30 Royal Parade, Parkville, VIC, 3052, Australia.
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, 3052, Australia.
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Yang Q, Han H, Sun Z, Liu L, Zheng X, Meng Z, Tao N, Liu J. Association of choline and betaine with the risk of cardiovascular disease and all-cause mortality: Meta-analysis. Eur J Clin Invest 2023; 53:e14041. [PMID: 37318151 DOI: 10.1111/eci.14041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 05/23/2023] [Accepted: 06/03/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND This study aimed to systematically evaluate the role of circulating levels of choline and betaine in the risk of cardiovascular disease (CVD) and all-cause mortality by comprehensively reviewing observational studies. METHODS This study was conducted according to PRISMA 2020 statement. Six electronic databases, including PubMed, Embase and China National Knowledge Infrastructure (CNKI), were searched for cohort studies and derivative research design types (nested case-control and case-cohort studies) from the date of inception to March 2022. We pooled relative risk (RR) and 95% confidence interval (CI) of the highest versus lowest category and per SD of circulating choline and betaine concentrations in relation to the risk of CVD and all-cause mortality. RESULTS In the meta-analysis, 17 studies with a total of 33,009 participants were included. Random-effects model results showed that highest versus lowest quantile of circulating choline concentrations were associated with the risk of CVD (RR = 1.29, 95% CI: 1.04-1.61) and all-cause mortality (RR = 1.62, 95% CI: 1.12-2.36). We also observed the risk of CVD were increased 13% (5%-22%) with per SD increment. Furthermore, highest versus lowest quantile of circulating betaine concentrations were not associated with the risk of CVD (RR = 1.07, 95% CI: 0.92-1.24) and all-cause mortality (RR = 1.39, 95% CI: 0.96-2.01). However, the risk of CVD was increased 14% (5%-23%) with per SD increment. CONCLUSIONS Higher levels of circulating choline were associated with a higher risk of CVD and all-cause mortality.
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Affiliation(s)
- Qinglin Yang
- Department of Preventive Medicine, School of Public Health, Zunyi Medical University, Zunyi, China
| | - Hua Han
- Department of Clinical Nutrition, The First People's Hospital of Zunyi, Zunyi, China
| | - Zhongming Sun
- Department of Preventive Medicine, School of Public Health, Zunyi Medical University, Zunyi, China
| | - Lu Liu
- Department of Preventive Medicine, School of Public Health, Zunyi Medical University, Zunyi, China
| | - Xingting Zheng
- Department of Preventive Medicine, School of Public Health, Zunyi Medical University, Zunyi, China
| | - Zeyu Meng
- Department of Preventive Medicine, School of Public Health, Zunyi Medical University, Zunyi, China
| | - Na Tao
- Department of Pharmacy, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Jun Liu
- Department of Preventive Medicine, School of Public Health, Zunyi Medical University, Zunyi, China
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Dong L, Tan J, Zhong Z, Tang Y, Qin W. Altered serum metabolic profile in patients with IgA nephropathy. Clin Chim Acta 2023; 549:117561. [PMID: 37722576 DOI: 10.1016/j.cca.2023.117561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/11/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
BACKGROUND We investigated alterations in the serum metabolomic profile of IgA nephropathy (IgAN) patients and screen biomarkers of IgA nephropathy based on ultra-performance liquid chromatography-mass spectrometry (UPLC-MS). METHODS Serum samples from 65 IgAN patients and 31 healthy controls were analyzed by ultra-performance liquid chromatography-mass spectrometry (UPLC-MS). Univariate and multivariate analysis were performed to screen the differential metabolites. Differential metabolites should meet both the following two criteria: adjusted P < 0.05 in the univariate analysis and VIP value > 1 in the multivariate model. Pathway analysis was performed to reveal the metabolic pathways that were significantly influenced in IgAN. Spearman correlation analysis was applied to explore the correlation between metabolites and between the metabolites and clinicopathological features of IgAN. A random forest model and Logistics regression analysis were conducted to evaluate the predictive ability of the metabolites. RESULTS The metabolic profile was significantly altered in IgAN patients compared with healthy controls. Thirty-nine metabolites were identified, including glycerophospholipids, sphingolipids, vitamin K1, vitamin K2, bile acids and amino acids. Sphingolipid metabolism, ubiquinone and other terpenoid-quinone biosynthesis, and glycerophospholipid metabolism were found to be significantly disturbed in the pathway analysis. Differential metabolites were found to be associated with the clinical and pathological features of IgAN patients. Lanosterol, vitamin K1, vitamin K2, and β-elemonic acid were found to have promising predictive ability for IgAN. CONCLUSIONS We confirmed the differences in the metabolic profiles of IgAN patients and healthy controls and identified the differential metabolites of IgAN, which may help with the further exploration of the pathogenesis and treatment of IgAN.
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Affiliation(s)
- Lingqiu Dong
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jiaxing Tan
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhengxia Zhong
- Division of Nephrology, Department of Medicine, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou, China
| | - Yi Tang
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wei Qin
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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Ma Q, Noda M, Danshiitsoodol N, Sugiyama M. Fermented Stevia Improves Alcohol Poisoning Symptoms Associated with Changes in Mouse Gut Microbiota. Nutrients 2023; 15:3708. [PMID: 37686739 PMCID: PMC10489940 DOI: 10.3390/nu15173708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
We previously found that the continuous feeding of ethanol caused mice dysbiosis, in which the cecal microbiota were significantly altered, as compared with those in the non-feeding control group, especially in some bacterial genera involved in gut inflammation. In the present study, we have found that the fermented extract of stevia (Stevia rebaudiana) leaves with plant-derived lactic acid bacteria (LABs), Pediococcus pentosaceus LY45, improves the trimethylamine (TMA) productivity of cecal content, which can be used as an indicator of dysbiosis. The following animal experiment also shows that the LY45-fermented stevia extract represses the typical increase in serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels, which decreased from 1106 to 210 IU/L (p < 0.05) and from 591 to 100 IU/L (p < 0.05), respectively, together with the simultaneously latent TMA productivity (from 1356 to 745 μM, p < 0.05) of cecal content in the ethanol-fed mice. The microbiota analyses have shown that the observed increased alterations in pro-inflammatory genera putative SMB53 (family Clostridiaceae) and Dorea are restored by the fermented stevia extract. Our result indicates that the preliminary bioconversion of herbal medicinal precursors by fermentation with safe microorganisms like LABs is expected to be a hopeful method of producing specific metabolites that may contribute to the reconstruction of gut microbiota.
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Affiliation(s)
| | | | | | - Masanori Sugiyama
- Department of Probiotic Science for Preventive Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima 734-8551, Japan; (Q.M.); (M.N.); (N.D.)
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Jadhav A, Bajaj A, Xiao Y, Markandey M, Ahuja V, Kashyap PC. Role of Diet-Microbiome Interaction in Gastrointestinal Disorders and Strategies to Modulate Them with Microbiome-Targeted Therapies. Annu Rev Nutr 2023; 43:355-383. [PMID: 37380178 PMCID: PMC10577587 DOI: 10.1146/annurev-nutr-061121-094908] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Diet is an important determinant of health and consequently is often implicated in the development of disease, particularly gastrointestinal (GI) diseases, given the high prevalence of meal-related symptoms. The mechanisms underlying diet-driven pathophysiology are not well understood, but recent studies suggest that gut microbiota may mediate the effect of diet on GI physiology. In this review, we focus primarily on two distinct GI diseases where the role of diet has been best studied: irritable bowel syndrome and inflammatory bowel disease. We discuss how the concurrent and sequential utilization of dietary nutrients by the host and gut microbiota determines the eventual bioactive metabolite profiles in the gut and the biological effect of these metabolites on GI physiology. We highlight several concepts that can be gleaned from these findings, such as how distinct effects of an individual metabolite can influence diverse GI diseases, the effect of similar dietary interventions on multiple disease states, and the need for extensive phenotyping and data collection to help make personalized diet recommendations.
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Affiliation(s)
- Ajita Jadhav
- Enteric Neuroscience Program, Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA;
| | - Aditya Bajaj
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India;
| | - Yang Xiao
- Enteric Neuroscience Program, Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA;
| | - Manasvini Markandey
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India;
| | - Vineet Ahuja
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India;
| | - Purna C Kashyap
- Enteric Neuroscience Program, Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA;
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Xu S, Liu W, Gong L, Li X, Chu W, Han M, Shi S, Zhou D. Association of ADRB2 gene polymorphisms and intestinal microbiota in Chinese Han adolescents. Open Life Sci 2023; 18:20220646. [PMID: 37554965 PMCID: PMC10404897 DOI: 10.1515/biol-2022-0646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/17/2023] [Accepted: 05/31/2023] [Indexed: 08/10/2023] Open
Abstract
Gut microbiota are closely related to health, and the β2-adrenergic receptor (ADRB2) gene is associated with gastrointestinal diseases. However, little is known about the relationship between ADRB2 gene polymorphisms and intestinal microbiota. In the present study, we aimed to explore the relationship between ADRB2 gene polymorphisms and gut microbiota in Chinese Han adolescents. Data analysis showed that the relative abundance, PICRUSt function prediction, and Chao1 and ACE indices of gut microbiota were significantly different between males and females (P < 0.05). The rs1042711 was positively associated with the relative abundance of Actinobacteria, Coriobacteriia, Bifidobacteriales, Erysipelotrichi, and Erysipelotrichales. The rs12654778 was negatively associated with Bacilli, Lactobacillales, Bacteroidaceae, and Bacteroides. rs1042713 was positively associated with Lactobacillales and Bifidobacteriales. The rs1042717 was positively associated with Bifidobacteriales and negatively associated with Veillonellaceae. The rs1042719 was negatively associated with Erysipelotrichi and Erysipelotrichales and positively associated with Erysipelotrichi, Erysipelotrichales, Bifidobacteriales, and Ruminococcaceae in females. The rs1801704 was positively associated with Erysipelotrichi, Erysipelotrichales, Bifidobacteriales, Actinobacteria, Coriobacteriia, and Bifidobacteriales. The rs2053044 was positively associated with Ruminococcaceae, Dialister, Firmicutes, Clostridia, Clostridiales, Bifidobacteriales, and Faecalibacterium and negatively associated with Bacilli, Lactobacillales, Lachnospiraceae, and Porphyromonadaceae (P < 0.05). These results suggested that the relative abundance, diversity, and PICRUSt function predictions of male and female gut microbiomes differ significantly and that ADRB2 gene polymorphisms were associated with gut microbiome abundance in Chinese Han adolescents.
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Affiliation(s)
- Shanrong Xu
- College of Life Science, Anqing Normal University, Anqing, 246133, P. R. China
- Department of Clinical Laboratory, Chongqing General Hospital, Chongqing, 400014, P. R. China
| | - Wenqi Liu
- College of Life Science, Anqing Normal University, Anqing, 246133, P. R. China
| | - Li Gong
- College of Life Science, Anqing Normal University, Anqing, 246133, P. R. China
| | - Xinyang Li
- Chongqing Traditional Chinese Medicine Hospital, Chongqing, 400021, P. R. China
| | - Wenwen Chu
- College of Life Science, Anqing Normal University, Anqing, 246133, P. R. China
| | - Meng Han
- College of Life Science, Anqing Normal University, Anqing, 246133, P. R. China
| | - Shuiqin Shi
- College of Life Science, Anqing Normal University, 1318 North Jixian Road, Anqing, 246133, P. R. China
| | - Duoqi Zhou
- College of Life Science, Anqing Normal University, 1318 North Jixian Road, Anqing, 246133, P. R. China
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Kim Y, Lee J, Kang MS, Song J, Kim SG, Cho S, Huh H, Lee S, Park S, Jo HA, Yang SH, Paek JH, Park WY, Han SS, Lee H, Lee JP, Joo KW, Lim CS, Hwang GS, Kim DK. Urinary Metabolite Profile Predicting the Progression of CKD. KIDNEY360 2023; 4:1048-1057. [PMID: 37291728 PMCID: PMC10476680 DOI: 10.34067/kid.0000000000000158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 05/17/2023] [Indexed: 06/10/2023]
Abstract
Key Points As a biomarker, urinary metabolites could bridge the gap between genetic abnormalities and phenotypes of diseases. We found that levels of betaine, choline, fumarate, citrate, and glucose were significantly correlated with kidney function and could predict kidney outcomes, providing prognostic biomarkers in CKD. Background Because CKD is caused by genetic and environmental factors, biomarker development through metabolomic analysis, which reflects gene-derived downstream effects and host adaptation to the environment, is warranted. Methods We measured the metabolites in urine samples collected from 789 patients at the time of kidney biopsy and from urine samples from 147 healthy participants using nuclear magnetic resonance. The composite outcome was defined as a 30% decline in eGFR, doubling of serum creatinine levels, or end-stage kidney disease. Results Among the 28 candidate metabolites, we identified seven metabolites showing (1 ) good discrimination between healthy controls and patients with stage 1 CKD and (2 ) a consistent change in pattern from controls to patients with advanced-stage CKD. Among the seven metabolites, betaine, choline, glucose, fumarate, and citrate showed significant associations with the composite outcome after adjustment for age, sex, eGFR, the urine protein–creatinine ratio, and diabetes. Furthermore, adding choline, glucose, or fumarate to traditional biomarkers, including eGFR and proteinuria, significantly improved the ability of the net reclassification improvement (P < 0.05) and integrated discrimination improvement (P < 0.05) to predict the composite outcome. Conclusion Urinary metabolites, including betaine, choline, fumarate, citrate, and glucose, were found to be significant predictors of the progression of CKD. As a signature of kidney injury–related metabolites, it would be warranted to monitor to predict the renal outcome.
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Affiliation(s)
- Yaerim Kim
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Jueun Lee
- Integrated Metabolomics Research Group, Western Seoul center, Korea Basic Science Institute, Seoul, Republic of Korea
| | - Mi Sun Kang
- Integrated Metabolomics Research Group, Western Seoul center, Korea Basic Science Institute, Seoul, Republic of Korea
| | - Jeongin Song
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Seong Geun Kim
- Department of Internal Medicine, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Semin Cho
- Department of Internal Medicine, Chungang University Gwangmyeong hospital, Gyeonggi-do, Korea
| | - Hyuk Huh
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Soojin Lee
- Department of Internal Medicine, Uijeongbu Eulji University Medical Center, Gyeonggi-do, Korea
| | - Sehoon Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Hyung Ah Jo
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Ilsan, Korea
| | - Seung Hee Yang
- Kidney Research Institute, Seoul National University, Seoul, Korea
| | - Jin Hyuk Paek
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Woo Yeong Park
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Seung Seok Han
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Hajeong Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Jung Pyo Lee
- Department of Internal Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea
- Departement of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Kwon Wook Joo
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
- Departement of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Chun Soo Lim
- Department of Internal Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea
- Departement of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Geum-Sook Hwang
- Integrated Metabolomics Research Group, Western Seoul center, Korea Basic Science Institute, Seoul, Republic of Korea
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Dong Ki Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
- Departement of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Chungchunlam SMS, Moughan PJ. Comparative bioavailability of vitamins in human foods sourced from animals and plants. Crit Rev Food Sci Nutr 2023:1-36. [PMID: 37522617 DOI: 10.1080/10408398.2023.2241541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Vitamins are essential components of enzyme systems involved in normal growth and function. The quantitative estimation of the proportion of dietary vitamins, that is in a form available for utilization by the human body, is limited and fragmentary. This review provides the current state of knowledge on the bioavailability of thirteen vitamins and choline, to evaluate whether there are differences in vitamin bioavailability when human foods are sourced from animals or plants. The bioavailability of naturally occurring choline, vitamin D, vitamin E, and vitamin K in food awaits further studies. Animal-sourced foods are the almost exclusive natural sources of dietary vitamin B-12 (65% bioavailable) and preformed vitamin A retinol (74% bioavailable), and contain highly bioavailable biotin (89%), folate (67%), niacin (67%), pantothenic acid (80%), riboflavin (61%), thiamin (82%), and vitamin B-6 (83%). Plant-based foods are the main natural sources of vitamin C (76% bioavailable), provitamin A carotenoid β-carotene (15.6% bioavailable), riboflavin (65% bioavailable), thiamin (81% bioavailable), and vitamin K (16.5% bioavailable). The overview of studies showed that in general, vitamins in foods originating from animals are more bioavailable than vitamins in foods sourced from plants.
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Affiliation(s)
| | - Paul J Moughan
- Riddet Institute, Massey University, Palmerston North, New Zealand
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37
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Guo GJ, Yao F, Lu WP, Xu HM. Gut microbiome and metabolic-associated fatty liver disease: Current status and potential applications. World J Hepatol 2023; 15:867-882. [PMID: 37547030 PMCID: PMC10401411 DOI: 10.4254/wjh.v15.i7.867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/11/2023] [Accepted: 06/30/2023] [Indexed: 07/21/2023] Open
Abstract
Metabolic-associated fatty liver disease (MAFLD) is one of the most common chronic liver diseases worldwide. In recent years, the occurrence rate of MAFLD has been on the rise, mainly due to lifestyle changes, high-calorie diets, and imbalanced dietary structures, thereby posing a threat to human health and creating heavy social and economic burdens. With the development of 16S sequencing and integrated multi-omics analysis, the role of the gut microbiota (GM) and its metabolites in MAFLD has been further recognized. The GM plays a role in digestion, energy metabolism, vitamin synthesis, the prevention of pathogenic bacteria colonisation, and immunoregulation. The gut-liver axis is one of the vital links between the GM and the liver. Toxic substances in the intestine can enter the liver through the portal vascular system when the intestinal barrier is severely damaged. The liver also influences the GM in various ways, such as bile acid circulation. The gut-liver axis is essential in maintaining the body’s normal physiological state and plays a role in the onset and prognosis of many diseases, including MAFLD. This article reviews the status of the GM and MAFLD and summarizes the GM characteristics in MAFLD. The relationship between the GM and MAFLD is discussed in terms of bile acid circulation, energy metabolism, micronutrients, and signalling pathways. Current MAFLD treatments targeting the GM are also listed.
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Affiliation(s)
- Gong-Jing Guo
- Gastroenterology Department of The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen & Longgang District People’s Hospital of Shenzhen, Shenzhen 518172, Guangdong Province, China
| | - Fei Yao
- Department of Science and Education, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou 510370, Guangdong Province, China
| | - Wei-Peng Lu
- The First Clinical School, Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
| | - Hao-Ming Xu
- Department of Gastroenterology and Hepatology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, Guangdong Province, China
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38
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Gallo M, Gámiz F. Choline: An Essential Nutrient for Human Health. Nutrients 2023; 15:2900. [PMID: 37447226 DOI: 10.3390/nu15132900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 07/15/2023] Open
Abstract
Choline is an essential nutrient that plays a role in the synthesis of the phospholipid membrane, critical for cell functions, and it is the major source of methyl donors relevant for epigenetic modifications of the genome [...].
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Affiliation(s)
- Milagros Gallo
- Departamento de Psicobiología, Instituto de Neurociencias, Centro de Investigación Biomédica, Universidad de Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria ibs, 18012 Granada, Spain
| | - Fernando Gámiz
- Departamento de Psicobiología, Instituto de Neurociencias, Centro de Investigación Biomédica, Universidad de Granada, 18071 Granada, Spain
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Upreti D, Rouzer SK, Bowring A, Labbe E, Kumar R, Miranda RC, Mahnke AH. Microbiota and nutrition as risk and resiliency factors following prenatal alcohol exposure. Front Neurosci 2023; 17:1182635. [PMID: 37397440 PMCID: PMC10308314 DOI: 10.3389/fnins.2023.1182635] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/23/2023] [Indexed: 07/04/2023] Open
Abstract
Alcohol exposure in adulthood can result in inflammation, malnutrition, and altered gastroenteric microbiota, which may disrupt efficient nutrient extraction. Clinical and preclinical studies have documented convincingly that prenatal alcohol exposure (PAE) also results in persistent inflammation and nutrition deficiencies, though research on the impact of PAE on the enteric microbiota is in its infancy. Importantly, other neurodevelopmental disorders, including autism spectrum and attention deficit/hyperactivity disorders, have been linked to gut microbiota dysbiosis. The combined evidence from alcohol exposure in adulthood and from other neurodevelopmental disorders supports the hypothesis that gut microbiota dysbiosis is likely an etiological feature that contributes to negative developmental, including neurodevelopmental, consequences of PAE and results in fetal alcohol spectrum disorders. Here, we highlight published data that support a role for gut microbiota in healthy development and explore the implication of these studies for the role of altered microbiota in the lifelong health consequences of PAE.
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Affiliation(s)
| | | | | | | | | | | | - Amanda H. Mahnke
- Department of Neuroscience and Experimental Therapeutics, Texas A&M University School of Medicine, Bryan, TX, United States
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Yi ZY, Peng YJ, Hui BP, Liu Z, Lin QX, Zhao D, Wang Y, Liu X, Xie J, Zhang SH, Huang JH, Yu R. Zuogui-Jiangtang-Yishen decoction prevents diabetic kidney disease: Intervene pyroptosis induced by trimethylamine n-oxide through the mROS-NLRP3 axis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 114:154775. [PMID: 36990008 DOI: 10.1016/j.phymed.2023.154775] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 03/04/2023] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Nowadays, diabetic kidney disease (DKD) has become one of the most threatening to the end-stage renal diseases, and the early prevention of DKD is inevitable for Diabetes Mellitus (DM) patients. AIMS Pyroptosis, a programmed cell death that mediates renal inflammation induced early renal injury. The trimethylamine n-oxide (TMAO) was also an independent risk factor for renal injury. Here, the associations between TMAO-induced pyroptosis and pathogenesis of DKD were studied, and the potential mechanism of Zuogui-Jiangtang-Yishen (ZGJTYS) decoction to prevent DKD was further investigated. METHOD Using Goto-Kakizaki (GK) rats to establish the early DKD models. The 16S-ribosomal RNA (16S rRNA) sequencing, fecal fermentation and UPLC-MS targeted metabolism techniques were combined to explore the changes of gut-derived TMAO level under the background of DKD and the effects of ZGJTYS. The proximal convoluted tubule epithelium of human renal cortex (HK-2) cells was adopted to explore the influence of pyroptosis regulated by TMAO. RESULTS It was demonstrated that ZGJTYS could prevent the progression of DKD by regulating glucolipid metabolism disorder, improving renal function and delaying renal pathological changes. In addition, we illustrated that gut-derived TMAO could promote DKD by activating the mROS-NLRP3 axis to induce pyroptosis. Furthermore, besides interfering with the generation of TMAO through gut microbiota, ZGJTYS inhibited TMAO-induced pyroptosis with a high-glucose environment and the underlying mechanism was related to the regulation of mROS-NLRP3 axis. CONCLUSION Our results suggested that ZGJTYS inhibited the activation of pyroptosis by gut-derived TMAO via the mROS-NLRP3 axis to prevent DKD.
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Affiliation(s)
- Zi-Yang Yi
- Hunan academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410013, P.R China
| | - Ya-Jun Peng
- The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, Hunan 410007, P.R China; Hunan Key Laboratory of TCM Prescription and Syndromes Translational Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, P. R. China
| | - Bo-Ping Hui
- Hunan academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410013, P.R China
| | - Zhao Liu
- Hunan academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410013, P.R China
| | - Qing-Xia Lin
- Hunan academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410013, P.R China
| | - Di Zhao
- Hunan academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410013, P.R China
| | - Yan Wang
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Xiu Liu
- Hunan Key Laboratory of TCM Prescription and Syndromes Translational Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, P. R. China
| | - Jing Xie
- Hunan academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410013, P.R China
| | - Shui-Han Zhang
- Hunan academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410013, P.R China
| | - Jian-Hua Huang
- Hunan academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410013, P.R China; Hunan Key Laboratory of TCM Prescription and Syndromes Translational Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, P. R. China.
| | - Rong Yu
- Hunan academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410013, P.R China; Hunan Key Laboratory of TCM Prescription and Syndromes Translational Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, P. R. China.
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41
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Singh TP, Kadyan S, Devi H, Park G, Nagpal R. Gut microbiome as a therapeutic target for liver diseases. Life Sci 2023; 322:121685. [PMID: 37044173 DOI: 10.1016/j.lfs.2023.121685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/27/2023] [Accepted: 04/05/2023] [Indexed: 04/14/2023]
Abstract
The prominent role of gut in regulating the physiology of different organs in a human body is increasingly acknowledged, to which the bidirectional communication between gut and liver is no exception. Liver health is modulated via different key components of gut-liver axis. The gut-derived products mainly generated from dietary components, microbial metabolites, toxins, or other antigens are sensed and transported to the liver through portal vein to which liver responds by secreting bile acids and antibodies. Therefore, maintaining a healthy gut microbiome can promote homeostasis of this gut-liver axis by regulating the intestinal barrier function and reducing the antigenic molecules. Conversely, liver secretions also regulate the gut microbiome composition. Disturbed homeostasis allows luminal antigens to reach liver leading to impaired liver functioning and instigating liver disorders. The perturbations in gut microbiome, permeability, and bile acid pool have been associated with several liver disorders, although precise mechanisms remain largely unresolved. Herein, we discuss functional fingerprints of a healthy gut-liver axis while contemplating mechanistic understanding of pathophysiology of liver diseases and plausible role of gut dysbiosis in different diseased states of liver. Further, novel therapeutic approaches to prevent the severity of liver disorders are discussed in this review.
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Affiliation(s)
- Tejinder Pal Singh
- Department of Dairy Microbiology, College of Dairy Science and Technology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana 125004, India
| | - Saurabh Kadyan
- Department of Nutrition and Integrative Physiology, College of Health and Human Sciences, Florida State University, Tallahassee, FL 32306, USA
| | - Harisha Devi
- Department of Dairy Microbiology, College of Dairy Science and Technology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana 125004, India
| | - Gwoncheol Park
- Department of Nutrition and Integrative Physiology, College of Health and Human Sciences, Florida State University, Tallahassee, FL 32306, USA
| | - Ravinder Nagpal
- Department of Nutrition and Integrative Physiology, College of Health and Human Sciences, Florida State University, Tallahassee, FL 32306, USA.
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42
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Battillo DJ, Malin SK. Impact of Caloric Restriction and Exercise on Trimethylamine N-Oxide Metabolism in Women with Obesity. Nutrients 2023; 15:1455. [PMID: 36986183 PMCID: PMC10058428 DOI: 10.3390/nu15061455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/04/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
Trimethylamine N-oxide (TMAO) is linked to cardiovascular disease (CVD) through partly altered central hemodynamics. We sought to examine if a low-calorie diet plus interval exercise (LCD+INT) intervention reduces TMAO more than a low-calorie diet (LCD) program alone in relation to hemodynamics, prior to clinically meaningful weight loss. Women with obesity were randomized to 2 weeks of LCD (n = 12, ~1200 kcal/d) or LCD+INT (n = 11; 60 min/d, 3 min at 90% and 50% HRpeak, respectively). A 180 min 75 g OGTT was performed to assess fasting TMAO and precursors (carnitine, choline, betaine, and trimethylamine (TMA)) as well as insulin sensitivity. Pulse wave analysis (applanation tonometry) including augmentation index (AIx75), pulse pressure amplification (PPA), forward (Pf) and backward pressure (Pb) waveforms, and reflection magnitude (RM) at 0, 60, 120, and 180 min was also analyzed. LCD and LCD+INT comparably reduced weight (p < 0.01), fasting glucose (p = 0.05), insulin tAUC180min (p < 0.01), choline (p < 0.01), and Pf (p = 0.04). Only LCD+INT increased VO2peak (p = 0.03). Despite no overall treatment effect, a high baseline TMAO was associated with decreased TMAO (r = -0.45, p = 0.03). Reduced TMAO was related to increased fasting PPA (r = -0.48, p = 0.03). Lowered TMA and carnitine correlated with higher fasting RM (r = -0.64 and r = -0.59, both p < 0.01) and reduced 120 min Pf (both, r = 0.68, p < 0.01). Overall, treatments did not lower TMAO. Yet, people with high TMAO pre-treatment reduced TMAO after LCD, with and without INT, in relation to aortic waveforms.
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Affiliation(s)
- Daniel J. Battillo
- Department of Kinesiology and Health, Rutgers University, New Brunswick, NJ 08901, USA
| | - Steven K. Malin
- Department of Kinesiology and Health, Rutgers University, New Brunswick, NJ 08901, USA
- Department of Kinesiology, University of Virginia, Charlottesville, VA 22903, USA
- Division of Endocrinology, Metabolism & Nutrition, Rutgers University, New Brunswick, NJ 08901, USA
- New Jersey Institute for Food, Nutrition and Health, Rutgers University, New Brunswick, NJ 08901, USA
- Institute of Translational Medicine and Science, Rutgers University, New Brunswick, NJ 08901, USA
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Costello SM, Cheney AM, Waldum A, Tripet B, Cotrina-Vidal M, Kaufmann H, Norcliffe-Kaufmann L, Lefcort F, Copié V. A Comprehensive NMR Analysis of Serum and Fecal Metabolites in Familial Dysautonomia Patients Reveals Significant Metabolic Perturbations. Metabolites 2023; 13:metabo13030433. [PMID: 36984872 PMCID: PMC10057143 DOI: 10.3390/metabo13030433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/06/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023] Open
Abstract
Central metabolism has a profound impact on the clinical phenotypes and penetrance of neurological diseases such as Alzheimer’s (AD) and Parkinson’s (PD) diseases, Amyotrophic Lateral Sclerosis (ALS) and Autism Spectrum Disorder (ASD). In contrast to the multifactorial origin of these neurological diseases, neurodevelopmental impairment and neurodegeneration in Familial Dysautonomia (FD) results from a single point mutation in the ELP1 gene. FD patients represent a well-defined population who can help us better understand the cellular networks underlying neurodegeneration, and how disease traits are affected by metabolic dysfunction, which in turn may contribute to dysregulation of the gut–brain axis of FD. Here, 1H NMR spectroscopy was employed to characterize the serum and fecal metabolomes of FD patients, and to assess similarities and differences in the polar metabolite profiles between FD patients and healthy relative controls. Findings from this work revealed noteworthy metabolic alterations reflected in energy (ATP) production, mitochondrial function, amino acid and nucleotide catabolism, neurosignaling molecules, and gut-microbial metabolism. These results provide further evidence for a close interconnection between metabolism, neurodegeneration, and gut microbiome dysbiosis in FD, and create an opportunity to explore whether metabolic interventions targeting the gut–brain–metabolism axis of FD could be used to redress or slow down the progressive neurodegeneration observed in FD patients.
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Affiliation(s)
- Stephanann M. Costello
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
| | - Alexandra M. Cheney
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
| | - Annie Waldum
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
| | - Brian Tripet
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
| | - Maria Cotrina-Vidal
- Department of Neurology, New York University School of Medicine, New York, NY 10017, USA
| | - Horacio Kaufmann
- Department of Neurology, New York University School of Medicine, New York, NY 10017, USA
| | | | - Frances Lefcort
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717, USA
| | - Valérie Copié
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
- Correspondence: ; Tel.: +1-406-994-7244
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Li B, Xu M, Wang Y, Feng L, Xing H, Zhang K. Gut microbiota: A new target for traditional Chinese medicine in the treatment of depression. JOURNAL OF ETHNOPHARMACOLOGY 2023; 303:116038. [PMID: 36529248 DOI: 10.1016/j.jep.2022.116038] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/20/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
ETHNIC PHARMACOLOGICAL RELEVANCE The causes of depression are complex. Many factors are involved in its pathogenesis, including the individual's biological and social environment. Although numerous studies have reported that the gut microbiota plays a significant role in depression, drugs that regulate the gut microbiota to treat depression have not yet been comprehensively reviewed. At the same time, more and more attention has been paid to the characteristics of traditional Chinese medicine (TCM) in improving depression by regulating gut microbiota. In ancient times, fecal microbiota transplantation was recorded in TCM for the treatment of severe diseases. There are also records in Chinese ancient books about the use of TCM to adjust gut microbiota to treat diseases, which has opened up a unique research field in TCM. Therefore, this article focuses on the pharmacological effects, targets, and mechanisms of TCM in improving depression by mediating the influence of gut microbiota. AIM OF THIS REVIEW To summarize the role the gut microbiota plays in depression, highlight potential regulatory targets, and elucidate the anti-depression mechanisms of TCMs through regulation of the gut microbiota. METHODS A systematic review of 256 clinical trials and pharmaceutical studies published until June 2022 was conducted in eight electronic databases (Web of Science, PubMed, SciFinder, Research Gate, ScienceDirect, Google Scholar, Scopus, and China Knowledge Infrastructure), according to the implemented PRISMA criteria, using the search terms "traditional Chinese medicine," "depression," and "gut microbiota." RESULTS Numerous studies reported the effects of different gut bacteria on depression and that antidepressants work through the gut microbiota. TCM preparations based on compound Chinese medicine, the Chinese Materia Medica, and major bioactive components exerted antidepressant-like effects by improving levels of neurotransmitters, short-chain fatty acids, brain-derived neurotrophic factor, kynurenine, and cytokines via regulation of the gut microbiota. CONCLUSION This review summarized the anti-depression effects of TCM on the gut microbiota, providing evidence that TCMs are safe and effective in the treatment of depression and may provide a new therapeutic approach.
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Affiliation(s)
- Boru Li
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Meijing Xu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yu Wang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Lijin Feng
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Hang Xing
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China; Jiangsu Kanion Pharmaceutical Co, Ltd, Lianyungang, 222001, China.
| | - Kuo Zhang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China; Tianjin UBasio Biotechnology Group, Tianjin, 300457, China.
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45
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Association of MAFLD with end-stage kidney disease: a prospective study of 337,783 UK Biobank participants. Hepatol Int 2023; 17:595-605. [PMID: 36809487 DOI: 10.1007/s12072-023-10486-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/12/2023] [Indexed: 02/23/2023]
Abstract
INTRODUCTION Metabolic dysfunction-associated fatty liver (MAFLD) has been found to be associated with the prevalence of chronic kidney disease (CKD). However, it is unknown whether MAFLD is associated with CKD development and the incidence of end-stage kidney disease (ESKD). We aimed to clarify the association between MAFLD and incident ESKD in the prospective UK Biobank cohort. METHODS We analyzed the data of 337,783 UK Biobank participants and relative risks for the ESKD were calculated by using the Cox regression analysis. RESULTS Among 337,783 participants over a median duration of 12.8 years follow-up, a total of 618 ESKD cases were diagnosed. Participants with MAFLD were twice likely to develop ESKD (hazard ratio [HR] 2.03, 95% confidence interval [CI] 1.68-2.46, p < 0.001). The association of MAFLD with ESKD risk remained significant in both non-CKD and CKD participants. Our results also showed that there were graded associations between liver fibrosis scores and the risk of ESKD in MAFLD cases. Compared to non-MAFLD individuals, the adjusted HRs for incident ESKD in MAFLD patients with increasing levels of NAFLD fibrosis score were 1.23 (95% CI 0.96-1.58), 2.45 (1.98-3.03) and 7.67 (5.48-10.73), respectively. Furthermore, the risking alleles of PNPLA3 rs738409, TM6SF2 rs58542926, GCKR rs1260326 and MBOAT7 rs641738 amplified the MAFLD effect on ESKD risk. In conclusion, MAFLD is associated with incident ESKD. CONCLUSION MAFLD may help identify the subjects at high risk of ESKD development and MAFLD interventions should be encouraged to slow down CKD progression.
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Chen YY, Tun HM, Field CJ, Mandhane PJ, Moraes TJ, Simons E, Turvey SE, Subbarao P, Scott JA, Kozyrskyj AL. Impact of Cesarean Delivery and Breastfeeding on Secretory Immunoglobulin A in the Infant Gut Is Mediated by Gut Microbiota and Metabolites. Metabolites 2023; 13:metabo13020148. [PMID: 36837767 PMCID: PMC9959734 DOI: 10.3390/metabo13020148] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/19/2022] [Accepted: 01/13/2023] [Indexed: 01/20/2023] Open
Abstract
How gut immunity in early life is shaped by birth in relation to delivery mode, intrapartum antibiotic prophylaxis (IAP) and labor remains undetermined. We aimed to address this gap with a study of secretory Immunoglobulin A (SIgA) in the infant gut that also tested SIgA-stimulating pathways mediated by gut microbiota and metabolites. Among 1017 Canadian full-term infants, gut microbiota of fecal samples collected at 3 and 12 months were profiled using 16S rRNA sequencing; C. difficile was quantified by qPCR; fecal metabolites and SIgA levels were measured by NMR and SIgA enzyme-linked immunosorbent assay, respectively. We assessed the putative causal relationships from birth events to gut microbiota and metabolites, and ultimately to SIgA, in statistical sequential mediation models, adjusted for maternal gravida status in 551 infants. As birth mode influences the ability to breastfeed, the statistical mediating role of breastfeeding status and milk metabolites was also evaluated. Relative to vaginal birth without maternal IAP, cesarean section (CS) after labor was associated with reduced infant gut SIgA levels at 3 months (6.27 vs. 4.85 mg/g feces, p < 0.05); this association was sequentially mediated through gut microbiota and metabolites of microbial or milk origin. Mediating gut microbiota included Enterobacteriaceae, C. difficile, and Streptococcus. The milk or microbial metabolites in CS-SIgA mediating pathways were galactose, fucose, GABA, choline, lactate, pyruvate and 1,2-propanediol. This cohort study documented the impact of birth on infant gut mucosal SIgA. It is the first to characterize gut microbe-metabolite mediated pathways for early-life SIgA maturation, pathways that require experimental verification.
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Affiliation(s)
- Yuan Yao Chen
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada
| | - Hein M. Tun
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada
- The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Catherine J. Field
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Piushkumar J. Mandhane
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada
| | - Theo J. Moraes
- Department of Pediatrics and Physiology, Hospital for Sick Children, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Elinor Simons
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, MB R3A 1S1, Canada
| | - Stuart E. Turvey
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC V6H 0B3, Canada
| | - Padmaja Subbarao
- Department of Pediatrics and Physiology, Hospital for Sick Children, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - James A. Scott
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada
| | - Anita L. Kozyrskyj
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada
- Correspondence: ; Tel.: +1-780-248-5508
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Jalandra R, Makharia GK, Sharma M, Kumar A. Inflammatory and deleterious role of gut microbiota-derived trimethylamine on colon cells. Front Immunol 2023; 13:1101429. [PMID: 36726978 PMCID: PMC9885123 DOI: 10.3389/fimmu.2022.1101429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/28/2022] [Indexed: 01/18/2023] Open
Abstract
Trimethylamine (TMA) is produced by the intestinal microbiota as a by-product of metabolism of dietary precursors. TMA has been implicated in various chronic health conditions. However, the effect of TMA in the colon and the underlying mechanism was not clear. In this study, TMA exhibited toxic effects in vitro as well as in vivo. TMA-induced oxidative stress causes DNA damage, and compromised cell membrane integrity leading to the release of LDH outside the cells which ultimately leads to cell death. Besides, TMA also exhibited pronounced increase in cell cycle arrest at G2/M phase in both HCT116 and HT29 cell lines. TMA was found to be genotoxic and cytotoxic as the TMA concentration increased from 0.15 mM. A decreased ATP intracellular content was observed after 24 h, 48 h, and 72 h treatment in a time and dose-dependent manner. For in vivo research, TMA (100 mM, i.p. and intra-rectal) once a week for 12 weeks caused significant changes in cellular morphology of colon and rectum epithelium as assessed by H & E staining. TMA also significantly increased the infiltration of inflammatory cells in the colon and rectal epithelium indicating the severity of inflammation. In addition, TMA caused extensive mucosal damage and distortion in the epithelium, decrease in length of small intestine compared to control mice. In conclusion, these results highlight the detrimental effects of TMA in the colon and rectal epithelium.
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Affiliation(s)
- Rekha Jalandra
- Gene Regulation Laboratory, National Institute of Immunology, New Delhi, India
- Department of Zoology, Maharshi Dayanand University, Rohtak, India
| | - Govind K. Makharia
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Minakshi Sharma
- Department of Zoology, Maharshi Dayanand University, Rohtak, India
| | - Anil Kumar
- Gene Regulation Laboratory, National Institute of Immunology, New Delhi, India
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Wang Q, Sun Y, Zhou T, Jiang C, A L, Xu W. Gut microbiota-dependent trimethylamine n-oxide pathway contributes to the bidirectional relationship between intestinal inflammation and periodontitis. Front Cell Infect Microbiol 2023; 12:1125463. [PMID: 36710972 PMCID: PMC9880481 DOI: 10.3389/fcimb.2022.1125463] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 12/28/2022] [Indexed: 01/14/2023] Open
Abstract
Background Intestinal inflammation and periodontitis influence the development of each other through the bidirectional relationship. As the intestinal microbiome metabolite, trimethylamine-N-oxide (TMAO) could contribute to chronic inflammation in the gut by influencing the gut microbial composition and intestinal immunity. Increased circulating TMAO levels often accompany clinical findings in patients with experimental periodontitis. However, the role of TMAO in the bidirectional relationship between intestinal inflammation and periodontitis remains unclear. Thus, we explored whether TMAO influences the periodontitis process by affecting intestinal immunity and microbial composition in this article. Methods Periodontitis was induced by unilateral ligation of the first molar in mice, and 3,3-dimethyl-1-butanol (DMB) was used as an inhibitor to reduce TMAO circulating. Twenty-five BALB/c mice were randomly assigned to five study sets (n = 5/group): no periodontitis with DMB (Control group), periodontitis (P) group, periodontitis with TMAO (P+TMAO) group, periodontitis with TMAO and DMB (P+TMAO+DMB) group, and periodontitis with DMB (P+DMB) group. The effect of TMAO was determined by assessing changes in intestinal histology, intestinal flora composition, periodontal tissue, and periodontal pro-inflammatory factors at ten days. Results The outcomes indicated a marked improvement in the intestinal inflammation severity, and intestinal flora diversity was reduced. Firmicutes number and the ratio of Firmicutes/Bacteroidetes were improved in the P+TMAO group. In addition, the alveolar bone resorption and the degree of periodontal tissue inflammation were more severe in the P+TMAO group than in other groups. Immunohistochemistry showed higher levels of TGF-β and IL-1β expression in the periodontal tissues of P+TMAO. Conclusions Our data suggest that TMAO could influence periodontal immunity and promote periodontal inflammation by affecting the intestinal microenvironment, revealing TMAO may affect the development of periodontitis through the bidirectional relationship of the oral-gut axis.
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Affiliation(s)
- Qiqi Wang
- Department of Periodontology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Yue Sun
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China,Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, Changchun, China
| | - Tianyu Zhou
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Cong Jiang
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Lan A
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China,Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, Changchun, China,*Correspondence: Lan A, ; Wenzhou Xu,
| | - Wenzhou Xu
- Department of Periodontology, School and Hospital of Stomatology, Jilin University, Changchun, China,Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, Changchun, China,*Correspondence: Lan A, ; Wenzhou Xu,
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What do we know about nutrient-based strategies targeting molecular mechanisms associated with obesity-related fatty liver disease? Ann Hepatol 2023; 28:100874. [PMID: 36371078 DOI: 10.1016/j.aohep.2022.100874] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/20/2022] [Indexed: 11/11/2022]
Abstract
Obesity is a risk factor for developing nonalcoholic fatty liver disease (NAFLD), and the associated molecular mechanisms could be targeted with nutrient-based strategies. Therefore, it is necessary to review the current mechanisms to propose further treatments. Obesity facilitates the onset of insulin resistance, lipidic abnormalities, hepatic fat accumulation, lipid peroxidation, mitochondrial dysfunction, excessive reactive oxygen species (ROS) production, and inflammation, all related to further steatosis progression and fibrosis. Microbiota alterations can also influence liver disease by the translocation of pathogenic bacteria, energy extraction from short chain fatty acids (SCFAs), intestinal suppression of the expression of fasting-induced adipose factor (FIAF), reduction of bile acids, and altered choline metabolism. There are also genetic polymorphisms in metabolic proteins that predispose to a higher risk of liver diseases, such as those found in the patatin-like phospholipase domain-containing 3 (PNPLA3), transmembrane 6 superfamily member 2 (TM6SF2), membrane-bound O-acyltransferase domain-containing 7 (MBOAT7) or also known as lysophosphatidylinositol acyltransferase 1 (LPIAT1), transmembrane channel-like 4 genes (TMC4), fat mass and obesity-associated protein (FTO), the b Klotho (KLB) and carboxylesterase (CES1). No clear dietary guidelines target all mechanisms related to NAFLD development and progression. However, energy and carbohydrate intake restriction, regular physical exercise, supplementation of antioxidants, and restoration of gut microbiota seem to have beneficial effects on the new proposed features of NAFLD.
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Zhen J, Zhou Z, He M, Han HX, Lv EH, Wen PB, Liu X, Wang YT, Cai XC, Tian JQ, Zhang MY, Xiao L, Kang XX. The gut microbial metabolite trimethylamine N-oxide and cardiovascular diseases. Front Endocrinol (Lausanne) 2023; 14:1085041. [PMID: 36824355 PMCID: PMC9941174 DOI: 10.3389/fendo.2023.1085041] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/26/2023] [Indexed: 02/10/2023] Open
Abstract
Morbidity and mortality of cardiovascular diseases (CVDs) are exceedingly high worldwide. Researchers have found that the occurrence and development of CVDs are closely related to intestinal microecology. Imbalances in intestinal microecology caused by changes in the composition of the intestinal microbiota will eventually alter intestinal metabolites, thus transforming the host physiological state from healthy mode to pathological mode. Trimethylamine N-oxide (TMAO) is produced from the metabolism of dietary choline and L-carnitine by intestinal microbiota, and many studies have shown that this important product inhibits cholesterol metabolism, induces platelet aggregation and thrombosis, and promotes atherosclerosis. TMAO is directly or indirectly involved in the pathogenesis of CVDs and is an important risk factor affecting the occurrence and even prognosis of CVDs. This review presents the biological and chemical characteristics of TMAO, and the process of TMAO produced by gut microbiota. In particular, the review focuses on summarizing how the increase of gut microbial metabolite TMAO affects CVDs including atherosclerosis, heart failure, hypertension, arrhythmia, coronary artery disease, and other CVD-related diseases. Understanding the mechanism of how increases in TMAO promotes CVDs will potentially facilitate the identification and development of targeted therapy for CVDs.
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Affiliation(s)
- Jing Zhen
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, Jiangsu, China
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China
| | - Zhou Zhou
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Meng He
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Hai-Xiang Han
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - En-Hui Lv
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Peng-Bo Wen
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xin Liu
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yan-Ting Wang
- Department of Biochemical Pharmacy, School of Pharmacy, Naval Medical University, Shanghai, China
| | - Xun-Chao Cai
- Department of Gastroenterology and Hepatology, Shenzhen University General Hospital, Shenzhen University, Shenzhen, Guangdong, China
| | - Jia-Qi Tian
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Meng-Ying Zhang
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Lei Xiao
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China
- *Correspondence: Xing-Xing Kang, ; Lei Xiao,
| | - Xing-Xing Kang
- Department of Bioinformatics, School of Medical Informatics, Xuzhou Medical University, Xuzhou, Jiangsu, China
- *Correspondence: Xing-Xing Kang, ; Lei Xiao,
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