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Sivaprasadan S, Anila KN, Nair K, Mallick S, Biswas L, Valsan A, Praseedom RK, Nair BKG, Sudhindran S. Microbiota and Gut-Liver Axis: An Unbreakable Bond? Curr Microbiol 2024; 81:193. [PMID: 38805045 DOI: 10.1007/s00284-024-03694-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 04/08/2024] [Indexed: 05/29/2024]
Abstract
The gut microbiota, amounting to approximately 100 trillion (1014) microbes represents a genetic repertoire that is bigger than the human genome itself. Evidence on bidirectional interplay between human and microbial genes is mounting. Microbiota probably play vital roles in diverse aspects of normal human metabolism, such as digestion, immune modulation, and gut endocrine function, as well as in the genesis and progression of many human diseases. Indeed, the gut microbiota has been most closely linked to various chronic ailments affecting the liver, although concrete scientific data are sparse. In this narrative review, we initially discuss the basic epidemiology of gut microbiota and the factors influencing their initial formation in the gut. Subsequently, we delve into the gut-liver axis and the evidence regarding the link between gut microbiota and the genesis or progression of various liver diseases. Finally, we summarise the recent research on plausible ways to modulate the gut microbiota to alter the natural history of liver disease.
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Affiliation(s)
- Saraswathy Sivaprasadan
- Department of Gastrointestinal Surgery and Solid Organ Transplantation, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India
| | - K N Anila
- Department of Gastrointestinal Surgery and Solid Organ Transplantation, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India
| | - Krishnanunni Nair
- Department of Gastrointestinal Surgery and Solid Organ Transplantation, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India
| | - Shweta Mallick
- Department of Gastrointestinal Surgery and Solid Organ Transplantation, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India
| | - Lalitha Biswas
- Amrita School of Nanosciences and Molecular Medicine, Kochi, India
| | - Arun Valsan
- Department of Hepatology & Gastroenterology, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India
| | | | | | - Surendran Sudhindran
- Department of Gastrointestinal Surgery and Solid Organ Transplantation, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India.
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Villela-Torres MDLL, Prado-Uribe MDC, Díaz MÁ, Pablo HQ, Soria-Castro E, Escofet NE, Maldonado CEF, Paniagua R. Effect of High Sodium Intake on Gut Tight Junctions' Structure and Permeability to Bacterial Toxins in a Rat Model of Chronic Kidney Disease. Arch Med Res 2024; 55:102969. [PMID: 38484487 DOI: 10.1016/j.arcmed.2024.102969] [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: 06/20/2023] [Revised: 01/19/2024] [Accepted: 02/06/2024] [Indexed: 04/22/2024]
Abstract
INTRODUCTION Uremic toxicity changes the gut structure and permeability, allowing bacterial toxins to translocate from the lumen to the blood during chronic kidney failure (CKD). Clinical fluid overload and tissue edema without uremia have similar effects but have not been adequately demonstrated and analyzed in CKD. AIMS To investigate the effect of sodium intake on the plasma concentration of gut-derived uremic toxins, indoxyl sulfate (IS), and p-cresyl sulfate (pCS) and the expression of genes and proteins of epithelial gut tight junctions in a rat model of CKD. METHODS Sham-operated (control group, CG) and five-sixths nephrectomized (5/6Nx) Sprague-Dawley rats were randomly assigned to low (LNa), normal (NNa), or high sodium (HNa) diets., Animals were then sacrificed at 8 and 12 weeks and analyzed for IS and pCS plasma concentrations, as well as for gene and protein expression of thigh junction proteins, and transmission electron microscopy (TEM) in colon fragments. RESULTS The HNa 5/6Nx groups had higher concentrations of IS and pCS than CG, NNa, and LNa at eight and twelve weeks. Furthermore, HNa 5/6Nx groups had reduced expression of the claudin-4 gene and protein than CG, NNa, and LNa. HNa had reduced occludin gene expression compared to CG. Occludin protein expression was more reduced in HNa than in CG, NNa, and LNa. The gut epithelial tight junctions appear dilated in HNa compared to NNa and LNa in TEM. CONCLUSION Dietary sodium intake and fluid overload have a significant role in gut epithelial permeability in the CKD model.
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Affiliation(s)
- María de la Luz Villela-Torres
- Medical Research Unit in Nephrological Diseases, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - María-Del-Carmen Prado-Uribe
- Medical Research Unit in Nephrological Diseases, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Marcela Ávila Díaz
- Medical Research Unit in Nephrological Diseases, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Héctor Quezada Pablo
- Immunnology and Proteomics Research Lab, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Elizabeth Soria-Castro
- Cardiovascular Biomedicine Department, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Nuria Esturau Escofet
- Physical Chemistry Department, Laboratorio Universitario de Resonancia Magnética Nuclear, Instituto de Química, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - Ramón Paniagua
- Medical Research Unit in Nephrological Diseases, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico.
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Hu YC, Ding XC, Liu HJ, Ma WL, Feng XY, Ma LN. Effects of Lactobacillus paracasei N1115 on gut microbial imbalance and liver function in patients with hepatitis B-related cirrhosis. World J Gastroenterol 2024; 30:1556-1571. [PMID: 38617455 PMCID: PMC11008409 DOI: 10.3748/wjg.v30.i11.1556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/08/2024] [Accepted: 03/04/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND Hepatitis B cirrhosis (HBC) is a chronic disease characterized by irreversible diffuse liver damage and aggravated by intestinal microbial imbalance and metabolic dysfunction. Although the relationship between certain single probiotics and HBC has been explored, the impact of the complex ready-to-eat Lactobacillus paracasei N1115 (LP N1115) supplement on patients with HBC has not been determined. AIM To compare the changes in the microbiota, inflammatory factor levels, and liver function before and after probiotic treatment in HBC patients. METHODS This study included 160 HBC patients diagnosed at the General Hospital of Ningxia Medical University between October 2018 and December 2020. Patients were randomly divided into an intervention group that received LP N1115 supplementation and routine treatment and a control group that received routine treatment only. Fecal samples were collected at the onset and conclusion of the 12-wk intervention period. The structure of the intestinal microbiota and the levels of serological indicators, such as liver function and inflammatory factors, were assessed. RESULTS Following LP N1115 intervention, the intestinal microbial diversity significantly increased in the intervention group (P < 0.05), and the structure of the intestinal microbiota was characterized by an increase in the proportions of probiotic microbes and a reduction in harmful bacteria. Additionally, the intervention group demonstrated notable improvements in liver function indices and significantly lower levels of inflammatory factors (P < 0.05). CONCLUSION LP N1115 is a promising treatment for ameliorating intestinal microbial imbalance in HBC patients by modulating the structure of the intestinal microbiota, improving liver function, and reducing inflammatory factor levels.
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Affiliation(s)
- Yan-Chao Hu
- Department of Infectious Disease, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Xiang-Chun Ding
- Department of Infectious Disease, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
- Infectious Disease Clinical Research Center of Ningxia, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Hui-Juan Liu
- Department of Infectious Disease, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Wan-Long Ma
- Department of Infectious Disease, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Xue-Yan Feng
- Department of Infectious Disease, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Li-Na Ma
- Department of Infectious Disease, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
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Zhang C, Fang T, Shi L, Wang Y, Deng X, Wang J, Zhou Y. The synbiotic combination of probiotics and inulin improves NAFLD though modulating gut microbiota. J Nutr Biochem 2024; 125:109546. [PMID: 38072206 DOI: 10.1016/j.jnutbio.2023.109546] [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: 07/24/2023] [Revised: 11/14/2023] [Accepted: 12/05/2023] [Indexed: 01/01/2024]
Abstract
Prebiotics can promote the growth of probiotics, cocombine of these is called synbiotics, and synbiotics is powerful regulators of gut microbiota. Intestinal microbiota plays an important role in nonalcoholic fatty liver disease (NAFLD), so synbiotics could be a therapeutic alternative. This study aims to investigate the effect of synbiotics combination of probiotics (Streptococcus Bifidobacterium and Streptococcus thermophilus) and prebiotics (Inulin) in vivo model of early NAFLD using yogurt as carrier. The results demonstrate that the yogurt with synbiotics combination group (HS) improves the biochemical indicators related to total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and insulin resistance (IR) in mice (P< .01). HS improves the development of lipid metabolism and inflammation by activating the AMPK and NFκB signaling pathway. In addition, HS restores the intestinal barrier dysfunction and inflammation caused by a high-fat diet. The 16S rRNA demonstrates that the gut microbiota composition of mice treated with HS is significantly altered specifically, the Firmicutes/Bacteroidetes ratio is significantly lower than in HFD-fed mice (P< .01). Our findings suggest the applicability of HS in preventing obesity-related NAFLD via its antioxidant, anti-inflammatory, and improved lipid metabolism by the gut-liver axis and provide a solid theoretical foundation for developing prebiotics for the prevention of NAFLD.
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Affiliation(s)
- Can Zhang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China; Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, China
| | - Tianqi Fang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China; College of Food Science and Engineering, Jilin University, Changchun, China
| | - Linlin Shi
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China; Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, China
| | - Yidan Wang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China; Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, China
| | - Xuming Deng
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China; Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, China
| | - Jianfeng Wang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China; Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, China.
| | - Yonglin Zhou
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China; College of Life Science, Ningxia University, Yinchuan 750021, China..
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Carr RM, Li Y, Chau L, Friedman ES, Lee JJ, Adorini L, Erickson M, Zaru L, Shringarpure R, MacConell L, Bittinger K, Li H, Wu GD. An integrated analysis of fecal microbiome and metabolomic features distinguish non-cirrhotic NASH from healthy control populations. Hepatology 2023; 78:1843-1857. [PMID: 37222264 PMCID: PMC10674038 DOI: 10.1097/hep.0000000000000474] [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: 11/10/2022] [Accepted: 04/25/2023] [Indexed: 05/25/2023]
Abstract
BACKGROUND AND AIMS There is great interest in identifying microbiome features as reliable noninvasive diagnostic and/or prognostic biomarkers for non-cirrhotic NASH fibrosis. Several cross-sectional studies have reported gut microbiome features associated with advanced NASH fibrosis and cirrhosis, where the most prominent features are associated with cirrhosis. However, no large, prospectively collected data exist establishing microbiome features that discern non-cirrhotic NASH fibrosis, integrate the fecal metabolome as disease biomarkers, and are unconfounded by BMI and age. APPROACH AND RESULTS Results from shotgun metagenomic sequencing performed on fecal samples prospectively collected from 279 US patients with biopsy-proven NASH (F1-F3 fibrosis) enrolled in the REGENERATE I303 study were compared to those from 3 healthy control cohorts and integrated with the absolute quantification of fecal bile acids. Microbiota beta-diversity was different, and BMI- and age-adjusted logistic regression identified 12 NASH-associated species. Random forest prediction models resulted in an AUC of 0.75-0.81 in a receiver operator characteristic analysis. In addition, specific fecal bile acids were significantly lower in NASH and correlated with plasma C4 levels. Microbial gene abundance analysis revealed 127 genes increased in controls, many involving protein synthesis, whereas 362 genes were increased in NASH many involving bacterial environmental responses (false discovery rate < 0.01). Finally, we provide evidence that fecal bile acid levels may be a better discriminator of non-cirrhotic NASH versus health than either plasma bile acids or gut microbiome features. CONCLUSIONS These results may have value as a set of baseline characteristics of non-cirrhotic NASH against which therapeutic interventions to prevent cirrhosis can be compared and microbiome-based diagnostic biomarkers identified.
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Affiliation(s)
- Rotonya M. Carr
- Division of Gastroenterology, University of Washington, Seattle, WA 981895
| | - Yun Li
- Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Lillian Chau
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Elliot S. Friedman
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Jung-Jin Lee
- Division of Gastroenterology, Hepatology, and Nutrition, Children’s Hospital of Philadelphia, Philadelphia, PA 19104
| | | | | | - Luna Zaru
- Intercept Pharmaceuticals, San Diego, CA 92122
| | | | | | - Kyle Bittinger
- Division of Gastroenterology, Hepatology, and Nutrition, Children’s Hospital of Philadelphia, Philadelphia, PA 19104
| | - Hongzhe Li
- Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Gary D. Wu
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
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Wang Q, Chen CX, Zuo S, Cao K, Li HY. Global research trends on the links between intestinal microbiota and liver diseases: a bibliometric analysis. Am J Transl Res 2023; 15:5364-5372. [PMID: 37692928 PMCID: PMC10492056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 06/21/2023] [Indexed: 09/12/2023]
Abstract
The number of articles on the relationships between the intestinal microbiota and liver diseases has continued to increase. The aim of this study was to assess publications on this topic, identify research hotspots, and predict trends of future research. Articles on this topic published from 2001 to 2021 were obtained from the Web of Science Core Collection. Bibliometric analysis and visualization were performed to identify research hotspots and trends with the use of the online bibliometric analysis platform, VOSviewer, and CiteSpace. In total, 4415 articles were included for bibliometric analysis. The annual output of research on this topic gradually increased over the past 21 years. China contributed the most publications (1254), while the United States was the core (centrality = 0.35) of the country-cooperation network and Schnabl B published the most articles (n = 80). High-frequency keywords included "gut microbiota", "inflammation", "obesity", "insulin resistance", "disease", "fatty liver disease", "metabolism", and "probiotics". The keywords that have burst in recent years include "intestinal microbiota", "dysbiosis", and "gut-liver axis". The relationships between dysbiosis of the intestinal microbiota and liver diseases, such as nonalcoholic fatty liver disease (NAFLD), cirrhosis, and hepatocellular carcinoma (HCC), are current research hotspots. Treatment for NAFLD, nonalcoholic steatohepatitis, cirrhosis, and HCC via regulation of the intestinal microbiota is predicted as a research hotspot in the following years, especially immunotherapy for HCC. These findings should prove helpful to scholars to direct future research on the relationships between the intestinal microbiota and liver diseases.
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Affiliation(s)
- Qiang Wang
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical UniversityGuiyang, Guizhou, P. R. China
- School of Clinical Medicine, Guizhou Medical UniversityGuiyang, Guizhou, P. R. China
| | - Cheng-Xin Chen
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical UniversityGuiyang, Guizhou, P. R. China
- School of Clinical Medicine, Guizhou Medical UniversityGuiyang, Guizhou, P. R. China
| | - Shi Zuo
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical UniversityGuiyang, Guizhou, P. R. China
| | - Kun Cao
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical UniversityGuiyang, Guizhou, P. R. China
| | - Hai-Yang Li
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical UniversityGuiyang, Guizhou, P. R. China
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Garbuzenko DV. Therapeutic possibilities of gut microbiota modulation in acute decompensation of liver cirrhosis. World J Hepatol 2023; 15:525-537. [PMID: 37206649 PMCID: PMC10190690 DOI: 10.4254/wjh.v15.i4.525] [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: 12/17/2022] [Revised: 02/01/2023] [Accepted: 03/30/2023] [Indexed: 04/20/2023] Open
Abstract
The formation of liver cirrhosis (LC) is an unfavorable event in the natural history of chronic liver diseases and with the development of portal hypertension and/or impaired liver function can cause a fatal outcome. Decompensation of LC is considered the most important stratification variable for the risk of death. It is currently postulated that decompensation of LC occurs through an acute (including acute-on-chronic liver failure) and non-acute pathway. Acute decompensation of LC is accompanied by the development of life-threatening complications, characterized by an unfavorable prognosis and high mortality. Progress in understanding the underlying molecular mechanisms has led to the search for new interventions, drugs, and biological substances that can affect key links in the pathogenesis of acute decompensation in LC, for example the impaired gut-liver axis and associated systemic inflammation. Given that particular alterations in the composition and function of gut microbiota play a crucial role here, the study of the therapeutic possibilities of its modulation has emerged as one of the top concerns in modern hepatology. This review summarized the investigations that describe the theoretical foundations and therapeutic potential of gut microbiota modulation in acute decompensation of LC. Despite the encouraging preliminary data, the majority of the suggested strategies have only been tested in animal models or in preliminary clinical trials; additional multicenter randomized controlled trials must demonstrate their efficacy in larger patient populations.
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Abstract
Hepatic encephalopathy (HE) is brain dysfunction secondary to liver insufficiency or portosystemic shunting. HE is a major burden on patients and caregivers, impairs quality of life and is associated with higher mortality. Overt HE is a clinical diagnosis while Covert HE, needs specialized diagnostic strategies. Mainstay of treatment of HE is nonabsorbable disaccharides such as lactulose as well as rifaximin; however, investigational therapies are discussed in this review. Better tools are needed to prognosticate which patients will go on to develop HE but microbiome and metabolomic-driven strategies are promising. Here we review methods to prevent the HE development and admissions.
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Li SL, Zheng SQ, Tang YZ, Liu HM, Mao Q. Progress in understanding of relationship between duodenal mucosal microecology and hepatitis B virus related acute-on-chronic liver failure. Shijie Huaren Xiaohua Zazhi 2022; 30:1074-1078. [DOI: 10.11569/wcjd.v30.i24.1074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
According to statistics, the rate of hepatitis B virus (HBV) infection is still high in China, and the mortality of acute-on-chronic liver failure (ACLF) is also high. In recent years, studies on the fecal flora of patients with HBV related ACLF have found that intestinal microecology affects the occurrence, development, and prognosis of HBV related ACLF. However, fecal flora cannot completely replace the whole intestinal microecology, and duodenal mucosal microecology may be a new research direction. This review discusses the influence of duodenal mucosal flora on the clinical outcome of HBV-ACLF with regard to mechanism, physiology, and anatomical characteristics.
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Affiliation(s)
- Shi-Lian Li
- Department of Infectious Diseases, Southwest Hospital, Army Medical University, Chongqing Key Laboratory of Infectious Disease Research, Chongqing 400038, China
| | - Shao-Qin Zheng
- Department of Infectious Diseases, Southwest Hospital, Army Medical University, Chongqing Key Laboratory of Infectious Disease Research, Chongqing 400038, China
| | - Ying-Zi Tang
- Department of Infectious Diseases, Southwest Hospital, Army Medical University, Chongqing Key Laboratory of Infectious Disease Research, Chongqing 400038, China
| | - Hui-Min Liu
- Department of Infectious Diseases, Southwest Hospital, Army Medical University, Chongqing Key Laboratory of Infectious Disease Research, Chongqing 400038, China
| | - Qing Mao
- Department of Infectious Diseases, Southwest Hospital, Army Medical University, Chongqing Key Laboratory of Infectious Disease Research, Chongqing 400038, China
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Zhou Z, Li K, Guo J, Wang Y, Wei Y, Duan J, Chen M, Shi L, Hu W. Green Tea Catechin EGCG Ameliorates Thioacetamide-Induced Hepatic Encephalopathy in Rats via Modulation of the Microbiota-Gut-Liver Axis. Mol Nutr Food Res 2022; 67:e2200821. [PMID: 36573265 DOI: 10.1002/mnfr.202200821] [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: 11/23/2022] [Revised: 11/23/2022] [Indexed: 12/28/2022]
Abstract
SCOPE Existing research suggests that (-)-epigallocatechin-3-gallate (EGCG), which is a natural tea catechin active substance, can protect against liver injury. However, its mechanism for hepatic encephalopathy (HE) treatment is still unclear. In this study, the role of EGCG in the amelioration of HE rats and the effect on the microbiota-gut-liver axis are mainly analyzed. METHODS AND RESULTS Thioacetamide (TAA) is employed to induce the HE model in rats. The results of open field test show that EGCG restores locomotor activity and exploratory behavior. Histological and biochemical results demonstrate that EGCG ameliorates brain and liver damage, decreases the expression of pro-inflammatory cytokines, and increases the activity of antioxidant enzymes. Meanwhile, EGCG modulates the Nrf2 pathway and TLR4/NF-κB pathway to mitigate TAA-induced oxidative stress and inflammatory responses. Immunohistochemistry reveals protection of the intestinal barrier by EGCG upregulating the expression of occludin and zonula occludens-1. Furthermore, serum levels of ammonia and LPS are reduced. 16S rRNA analysis shows that EGCG treatment increases the abundance of beneficial bacteria (e.g., Bifidobacterium, Lactobacillus, and Limosilactobacillus). CONCLUSION The above results reveal that EGCG has anti-oxidative stress and anti-inflammatory effects, and ameliorates the condition through the microbiota-gut-liver axis, with potential for the treatment of HE.
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Affiliation(s)
- Zhengming Zhou
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Ke Li
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jiankui Guo
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yunfeng Wang
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yaoyao Wei
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Juan Duan
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Muxi Chen
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Lei Shi
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Wen Hu
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
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Zhou C, Li J, Guo C, Zhou Z, Yang Z, Zhang Y, Jiang J, Cai Y, Zhou J, Ming Y. Comparison of intestinal flora between patients with chronic and advanced Schistosoma japonicum infection. Parasit Vectors 2022; 15:413. [PMID: 36345042 PMCID: PMC9640844 DOI: 10.1186/s13071-022-05539-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 10/10/2022] [Indexed: 11/09/2022] Open
Abstract
Background Schistosoma japonicum infection is an important public health problem, imposing heavy social and economic burdens in 78 countries worldwide. However, the mechanism of transition from chronic to advanced S. japonicum infection remains largely unknown. Evidences suggested that gut microbiota plays a role in the pathogenesis of S. japonicum infection. However, the composition of the gut microbiota in patients with chronic and advanced S. japonicum infection is not well defined. In this study, we compared the composition of the intestinal flora in patients with chronic and advanced S. japonicum infection. Methods The feces of 24 patients with chronic S. japonicum infection and five patients with advanced S. japonicum infection from the same area were collected according to standard procedures, and 16S rRNA sequencing technology was used to analyze the intestinal microbial composition of the two groups of patients. Results We found that alteration occurs in the gut microbiota between the groups of patients with chronic and advanced S. japonicum infections. Analysis of alpha and beta diversity indicated that the diversity and abundance of intestinal flora in patients with advanced S. japonicum infection were lower than those in patients with chronic S. japonicum infection. Furthermore, Prevotella 9, Subdoligranulum, Ruminococcus torques, Megamonas and Fusicatenibacter seemed to have potential to discriminate different stages of S. japonicum infection and to act as biomarkers for diagnosis. Function prediction analysis revealed that microbiota function in the chronic group was focused on translation and cell growth and death, while that in the advanced group was concentrated on elevating metabolism-related functions. Conclusions Our study demonstrated that alteration in gut microbiota in different stages of S. japonicum infection plays a potential role in the pathogenesis of transition from chronic to advanced S. japonicum infection. However, further validation in the clinic is needed, and the underlying mechanism requires further study. Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05539-6.
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Ran X, Hu G, He F, Li K, Li F, Xu D, Liu J, Fu S. Phytic Acid Improves Hepatic Steatosis, Inflammation, and Oxidative Stress in High-Fat Diet (HFD)-Fed Mice by Modulating the Gut-Liver Axis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11401-11411. [PMID: 36040330 DOI: 10.1021/acs.jafc.2c04406] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) induced by obesity is a grave threat to human health. Phytic acid (PA) is a natural compound found in high-fiber diets, such as soybeans. This study investigated the effects and mechanisms of PA on obesity, hepatic lipid metabolism, and gut-liver axis homeostasis in high-fat diet (HFD)-fed mice. PA was observed to significantly inhibit obesity and alleviate liver steatosis in mice. PA improved HFD-induced liver inflammation, oxidative stress and fibrosis. Moreover, PA improved HFD-induced colonic inflammation, gut barrier damage and systemic inflammation in mice. Furthermore, PA effectively ameliorated the decreased diversity and gut microbiota composition in HFD-fed mice. Additionally, PA decreased the abundance of harmful bacteria Proteobacteria and Desulfovibrionaceae and increased the abundance of probiotic bacteria Muribaculaceae and Lachnospiraceae. Thus, PA is effective in restoring the homeostasis of the gut-liver axis. It further provides a theoretical basis for the prevention and treatment of NAFLD in patients with obesity by the rational intake of foods containing PA.
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Affiliation(s)
- Xin Ran
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130012, China
| | - Guiqiu Hu
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130012, China
| | - Fuding He
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130012, China
| | - Kefei Li
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130012, China
| | - Feng Li
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130012, China
| | - Dianwen Xu
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130012, China
| | - Juxiong Liu
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130012, China
| | - Shoupeng Fu
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130012, China
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13
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Lin D, Song Q, Liu J, Chen F, Zhang Y, Wu Z, Sun X, Wu X. Potential Gut Microbiota Features for Non-Invasive Detection of Schistosomiasis. Front Immunol 2022; 13:941530. [PMID: 35911697 PMCID: PMC9330540 DOI: 10.3389/fimmu.2022.941530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/13/2022] [Indexed: 11/18/2022] Open
Abstract
The gut microbiota has been identified as a predictive biomarker for various diseases. However, few studies focused on the diagnostic accuracy of gut microbiota derived-signature for predicting hepatic injuries in schistosomiasis. Here, we characterized the gut microbiomes from 94 human and mouse stool samples using 16S rRNA gene sequencing. The diversity and composition of gut microbiomes in Schistosoma japonicum infection-induced disease changed significantly. Gut microbes, such as Bacteroides, Blautia, Enterococcus, Alloprevotella, Parabacteroides and Mucispirillum, showed a significant correlation with the level of hepatic granuloma, fibrosis, hydroxyproline, ALT or AST in S. japonicum infection-induced disease. We identified a range of gut bacterial features to distinguish schistosomiasis from hepatic injuries using the random forest classifier model, LEfSe and STAMP analysis. Significant features Bacteroides, Blautia, and Enterococcus and their combinations have a robust predictive accuracy (AUC: from 0.8182 to 0.9639) for detecting liver injuries induced by S. japonicum infection in humans and mice. Our study revealed associations between gut microbiota features and physiopathology and serological shifts of schistosomiasis and provided preliminary evidence for novel gut microbiota-derived features for the non-invasive detection of schistosomiasis.
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Affiliation(s)
- Datao Lin
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Guangzhou, China
- Chinese Atomic Energy Agency Center of Excellence on Nuclear Technology Applications for Insect Control, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Guangzhou, China
- *Correspondence: Datao Lin, ; Xi Sun, ; Xiaoying Wu,
| | - Qiuyue Song
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Guangzhou, China
- Department of Clinical Laboratory, Xiangyang No.1 People’s Hospital, Hubei University of Medicine, Xiangyang, China
| | - Jiahua Liu
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Guangzhou, China
| | - Fang Chen
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Yishu Zhang
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Guangzhou, China
| | - Zhongdao Wu
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Guangzhou, China
- Chinese Atomic Energy Agency Center of Excellence on Nuclear Technology Applications for Insect Control, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Guangzhou, China
| | - Xi Sun
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Guangzhou, China
- *Correspondence: Datao Lin, ; Xi Sun, ; Xiaoying Wu,
| | - Xiaoying Wu
- Key Laboratory of Tropical Disease Control, Ministry of Education, Guangzhou, China
- The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Datao Lin, ; Xi Sun, ; Xiaoying Wu,
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14
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Zhang T, Wang J, Yao Z, Ni L, Zhao Y, Wei S, Chen Z. Effect and Mechanism of Bifidobacterium animalis B94 in the Prevention and Treatment of Liver Injury in Rats. Front Cell Infect Microbiol 2022; 12:914684. [PMID: 35846768 PMCID: PMC9277360 DOI: 10.3389/fcimb.2022.914684] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/09/2022] [Indexed: 11/30/2022] Open
Abstract
Objective To investigate the effect of Bifidobacterium animalis B94 on the prevention and treatment of liver injury in rats and to elucidate the underlying mechanism of this relationship. Methods Specific pathogen-free (SPF) rats were selected as the healthy control group, liver injury group and B94 treatment group, with 6 rats in each group. After the model was established, the experimental animals were tested for serum liver function indicators, gut microbiota composition, metabolite composition, and histopathology. Results The albumin/globulin ratio and serum TBA, alanine aminotransferase, aspartate aminotransferase, and indirect bilirubin levels in the B94 treatment group were significantly lower than those in the liver injury group. 16S rRNA analysis showed that the gut microbiota of the three groups of rats were significantly different. Metabolic profile analysis showed that there were significant differences in the gut metabolomes of the three groups. Haematoxylin–eosin staining of the intestinal mucosa and liver tissues showed that the degree of liver and intestinal tissue damage in the B94 treatment group was significantly lower than that in the liver injury group. Conclusion Bifidobacterium animalis B94 can affect the process of liver injury in rats by improving liver function, reducing intestinal damage, and regulating gut microbiota and metabolite production.
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Affiliation(s)
- Tianfang Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jie Wang
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
| | - Zhao Yao
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
| | - Lingmei Ni
- Infection Prevention and Control Department, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yifan Zhao
- Department of Rehabilitation Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shuang Wei
- Department of Rehabilitation Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zuobing Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- *Correspondence: Zuobing Chen,
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15
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Liu Y, Méric G, Havulinna AS, Teo SM, Åberg F, Ruuskanen M, Sanders J, Zhu Q, Tripathi A, Verspoor K, Cheng S, Jain M, Jousilahti P, Vázquez-Baeza Y, Loomba R, Lahti L, Niiranen T, Salomaa V, Knight R, Inouye M. Early prediction of incident liver disease using conventional risk factors and gut-microbiome-augmented gradient boosting. Cell Metab 2022; 34:719-730.e4. [PMID: 35354069 PMCID: PMC9097589 DOI: 10.1016/j.cmet.2022.03.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 01/06/2022] [Accepted: 03/08/2022] [Indexed: 02/08/2023]
Abstract
The gut microbiome has shown promise as a predictive biomarker for various diseases. However, the potential of gut microbiota for prospective risk prediction of liver disease has not been assessed. Here, we utilized shallow shotgun metagenomic sequencing of a large population-based cohort (N > 7,000) with ∼15 years of follow-up in combination with machine learning to investigate the predictive capacity of gut microbial predictors individually and in conjunction with conventional risk factors for incident liver disease. Separately, conventional and microbial factors showed comparable predictive capacity. However, microbiome augmentation of conventional risk factors using machine learning significantly improved the performance. Similarly, disease-free survival analysis showed significantly improved stratification using microbiome-augmented models. Investigation of predictive microbial signatures revealed previously unknown taxa for liver disease, as well as those previously associated with hepatic function and disease. This study supports the potential clinical validity of gut metagenomic sequencing to complement conventional risk factors for prediction of liver diseases.
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Affiliation(s)
- Yang Liu
- Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia; Department of Clinical Pathology, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia.
| | - Guillaume Méric
- Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia; Department of Clinical Pathology, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia; Baker Department of Cardiometabolic Health, The University of Melbourne, Melbourne, VIC, Australia; Department of Infectious Diseases, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Aki S Havulinna
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland; Institute of Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
| | - Shu Mei Teo
- Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia; Cambridge Baker Systems Genomics Initiative, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Fredrik Åberg
- Transplantation and Liver Surgery Clinic, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Matti Ruuskanen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland; Department of Internal Medicine, University of Turku, Turku, Finland
| | - Jon Sanders
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Qiyun Zhu
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Anupriya Tripathi
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA, USA; Division of Biological Sciences, University of California, San Diego, La Jolla, CA, USA
| | - Karin Verspoor
- School of Computing and Information Systems, University of Melbourne, Melbourne, VIC, Australia; School of Computing Technologies, RMIT University, Melbourne, VIC, Australia
| | - Susan Cheng
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Mohit Jain
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA, USA; Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, USA
| | - Pekka Jousilahti
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Yoshiki Vázquez-Baeza
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, USA; Department of Computer Science & Engineering, Jacobs School of Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Rohit Loomba
- NAFLD Research Center, Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Leo Lahti
- Department of Computing, University of Turku, Turku, Finland
| | - Teemu Niiranen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland; Department of Internal Medicine, University of Turku, Turku, Finland; Division of Medicine, Turku University Hospital, Turku, Finland
| | - Veikko Salomaa
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Rob Knight
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA, USA; Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, USA; Department of Computer Science & Engineering, Jacobs School of Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Michael Inouye
- Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia; Department of Clinical Pathology, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia; Baker Department of Cardiometabolic Health, The University of Melbourne, Melbourne, VIC, Australia; Cambridge Baker Systems Genomics Initiative, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK; Health Data Research UK Cambridge, Wellcome Genome Campus, University of Cambridge, Cambridge, UK; British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK; British Heart Foundation Centre of Research Excellence, University of Cambridge, Cambridge, UK; The Alan Turing Institute, London, UK.
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16
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Luo W, Guo S, Zhou Y, Zhao J, Wang M, Sang L, Chang B, Wang B. Hepatocellular Carcinoma: How the Gut Microbiota Contributes to Pathogenesis, Diagnosis, and Therapy. Front Microbiol 2022; 13:873160. [PMID: 35572649 PMCID: PMC9092458 DOI: 10.3389/fmicb.2022.873160] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 04/05/2022] [Indexed: 12/12/2022] Open
Abstract
The gut microbiota is gaining increasing attention, and the concept of the "gut-liver axis" is gradually being recognized. Leaky gut resulting from injury and/or inflammation can cause the translocation of flora to the liver. Microbiota-associated metabolites and components mediate the activation of a series of signalling pathways, thereby playing an important role in the development of hepatocellular carcinoma (HCC). For this reason, targeting the gut microbiota in the diagnosis, prevention, and treatment of HCC holds great promise. In this review, we summarize the gut microbiota and the mechanisms by which it mediates HCC development, and the characteristic alterations in the gut microbiota during HCC pathogenesis. Furthermore, we propose several strategies to target the gut microbiota for the prevention and treatment of HCC, including antibiotics, probiotics, faecal microbiota transplantation, and immunotherapy.
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Affiliation(s)
- Wenyu Luo
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, China
- The Second Clinical College, China Medical University, Shenyang, China
| | - Shiqi Guo
- The Second Clinical College, China Medical University, Shenyang, China
| | - Yang Zhou
- The Second Clinical College, China Medical University, Shenyang, China
| | - Jingwen Zhao
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Mengyao Wang
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Lixuan Sang
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bing Chang
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Bingyuan Wang
- Department of Geriatric Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
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17
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Hu Q, Liao W, Zhang Z, Shi S, Hou S, Ji N, Zhang X, Zhang Q, Liao Y, Li L, Zhu Z, Chen Y, Chen J, Yu F, Yang Q, Xiao H, Fu C, Du H, Wang Q, Cao H, Xiao H, Li R. The hepatoprotective effects of plant-based foods based on the "gut-liver axis": a prospective review. Crit Rev Food Sci Nutr 2022; 63:9136-9162. [PMID: 35466839 DOI: 10.1080/10408398.2022.2064423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The importance of the "gut-liver axis" in the pathogenesis of liver diseases has been revealed recently; which promotes the process of developing preventive and therapeutic strategies. However, considering that there are still many challenges in the medical treatment of liver diseases, potential preventive dietary intervention may be a good alternative choice. Plant-based foods have received much attention due to their reported health-promoting effects in targeting multiple pathways involved in the pathogenesis of liver diseases as well as the relative safety for general use. Based on the PubMed and Web of Science databases, this review emphatically summarizes the plant-based foods and their chemical constituents with reported effects to impact the LPS/TLR4 signaling pathway of gut-liver axis of various liver diseases, reflecting their health benefits in preventing/alleviating liver diseases. Moreover, some plant-based foods with potential gut-liver effects are specifically analyzed from the reported studies and conclusions. This review intends to provide readers an overview of the current progress in the field of this research topic. We expect to see more hepatoprotective measures for alleviating the current prevalence of liver diseases.
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Affiliation(s)
- Qiongdan Hu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Wan Liao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Zhen Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Sanjun Shi
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Shuguang Hou
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Ningping Ji
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Xinjie Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Qian Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Yangyang Liao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Linghui Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Zongping Zhu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Yi Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Jiao Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Fangkun Yu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Qingsong Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Hongtao Xiao
- Department of Clinical Pharmacy, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China
| | - Chaomei Fu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Hengjun Du
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | - Qi Wang
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | - Heping Cao
- U.S. Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, New Orleans, LA, USA
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | - Rui Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
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18
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Shu W, Shanjian C, Jinpiao L, Qishui O. Gut microbiota dysbiosis in patients with hepatitis B virus-related cirrhosis. Ann Hepatol 2022; 27:100676. [PMID: 35093600 DOI: 10.1016/j.aohep.2022.100676] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND AIM Chronic hepatitis B (CHB) is a global epidemic disease that results from hepatitis B virus (HBV) infection and may progress to liver cirrhosis. The relationship between hepatitis B virus-related cirrhosis (HBV-RC) and gut microbiota dysbiosis is still unclear. The aim of this study is to elucidate the compositional and functional characteristics of the gut microbiota in the patients with liver cirrhosis and healthy individuals. MATERIALS AND METHODS We analyzed the gut microbiome in patients with HBV-RC and healthy individuals by 16S rRNA sequencing and metagenomic sequencing of fecal samples. A total of 113 genera, 85 families, 57 orders, 44 classes and 21 phyla were performed. RESULTS Our results suggests that the composition of the gut microbiota had changed in the early stages of cirrhosis. We further identified more than 17 genera with different richness in compensated and decompensated cirrhosis groups. PICRUSt analysis showed that changes in bacterial composition can lead to significant changes in gene function, which may be one of the causes of liver cirrhosis. CONCLUSION Our study demonstrated that the composition of gut microbiota changed at different phases of HBV-RC. Gut microbiome transformation may be a biological factor in the progression of cirrhosis.
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Affiliation(s)
- Wu Shu
- The First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, CN; Fujian Key Laboratory of Laboratory Medicine, Fuzhou, CN; Gene Diagnosis Research Center, Fujian Medical University, Fuzhou, CN
| | - Chen Shanjian
- The First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, CN; Fujian Key Laboratory of Laboratory Medicine, Fuzhou, CN; Gene Diagnosis Research Center, Fujian Medical University, Fuzhou, CN
| | - Lin Jinpiao
- The First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, CN; Fujian Key Laboratory of Laboratory Medicine, Fuzhou, CN; Gene Diagnosis Research Center, Fujian Medical University, Fuzhou, CN
| | - Ou Qishui
- The First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, CN; Fujian Key Laboratory of Laboratory Medicine, Fuzhou, CN; Gene Diagnosis Research Center, Fujian Medical University, Fuzhou, CN.
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19
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A critical review of bile acids and their receptors in hepatic encephalopathy. Anal Biochem 2022; 643:114436. [PMID: 34715070 PMCID: PMC9798441 DOI: 10.1016/j.ab.2021.114436] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/15/2021] [Accepted: 10/22/2021] [Indexed: 01/01/2023]
Abstract
Hepatic encephalopathy describes an array of neurological complications that arise due to liver insufficiency. The pathogenesis of hepatic encephalopathy shares a longstanding association with hyperammonemia and inflammation, and recently, aberrant bile acid signaling has been implicated in the development of key features of hepatic encephalopathy. These key features include neuronal dysfunction, neuroinflammation and blood-brain barrier permeability. This review summarizes the findings of recent studies demonstrating a role for bile acids in the pathogenesis of hepatic encephalopathy via one of three main bile acid receptors and speculates on the possible downstream consequences of aberrant bile acid signaling.
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20
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Cui B, Guo G, Hui Y, Wang X, Liu W, Sun C. The prognostic value of high-density lipoprotein cholesterol in patients with decompensated cirrhosis: a propensity score matching analysis. J Clin Lipidol 2022; 16:325-334. [DOI: 10.1016/j.jacl.2022.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 01/25/2022] [Accepted: 03/16/2022] [Indexed: 11/28/2022]
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21
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Erinle TJ, MacIsaac J, Yang C, Adewole DI. Effect of red osier dogwood extract on growth performance, blood biochemical parameters, and gut functionality of broiler chickens challenged or unchallenged intraperitoneally with Salmonella Enteritidis lipopolysaccharide. Poult Sci 2022; 101:101861. [PMID: 35544959 PMCID: PMC9118149 DOI: 10.1016/j.psj.2022.101861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/04/2022] [Accepted: 03/08/2022] [Indexed: 02/02/2023] Open
Abstract
As we advance in the search for antibiotic-alternatives, harnessing plant materials with high total polyphenol concentration (TPC) would be quintessential. Given the high TPC in red osier dogwood (ROD) extract, the current study aimed to determine its efficacy on the growth performance, intestinal health, blood biochemistry, and antioxidant capacity of broiler chickens. A 21-day 4x2 factorial feeding trial was conducted based on two main factors namely, dietary treatments and Salmonella Enteritidis Lipopolysaccharides SE-LPS) challenge. A total of 384 one-day-old mixed-sex Cobb-500 broiler chicks were randomly allotted to four dietary treatments - Negative control (NC), NC + 0.05% bacitracin methylene disalicylate (BMD), NC + 0.3%ROD, and NC+0.5% ROD. Each treatment was assigned to eight replicates with six birds/replicate. On d 13 and 20, half of the birds were intraperitoneally injected with 1mL phosphate-buffered-saline /kg BW of birds (Unchallenged-group) and the remaining half with 1mg SE-LPS /kg BW of birds (Challenged-group). Average weight gain (AWG), average feed intake (AFI), feed conversion ratio (FCR), and mortality were determined weekly. On d 21, ten chickens/treatment were euthanized for measuring blood biochemical parameters, immune organ weights, caecal SCFA, and caeca microbiota. The SE-LPS decreased (P < 0.05) AWG and FCR on d 14 and 21, respectively. On d 14, 21, and overall basis, both ROD extract levels marginally improved (P < 0.05) the AWG of unchallenged birds compared to other treatments in the unchallenged-group. Challenged and unchallenged birds fed ROD extract had deeper (P < 0.05) crypt depth (CD) and higher villus height:CD, respectively, in the ileum. Globulin (GLB) and albumin:GLB were increased and reduced (P < 0.05), respectively, among birds fed 0.3%ROD compared to other treatments. There was no treatment effect on caeca SCFA, relative weight of immune organs, and serum antioxidants. Birds fed ROD extract had a higher (P < 0.05) relative abundance of caecal Lactobacillus and Streptococcus genera compared to the antibiotic treatment. Conclusively, incorporating 0.3% and 0.5%ROD extract into broiler chickens' nutrition improved growth performance and ileal morphology, and modified caecal microbiota of broiler chickens, regardless of the intraperitoneal SE-LPS challenge.
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Affiliation(s)
- Taiwo J Erinle
- Department of Animal Science and Aquaculture, Faculty of Agriculture, Dalhousie University, Truro NS B2N 5E3, Canada
| | - Janice MacIsaac
- Department of Animal Science and Aquaculture, Faculty of Agriculture, Dalhousie University, Truro NS B2N 5E3, Canada
| | - Chengbo Yang
- Department of Animal Science, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg MB R3T 2N2, Canada
| | - Deborah I Adewole
- Department of Animal Science and Aquaculture, Faculty of Agriculture, Dalhousie University, Truro NS B2N 5E3, Canada.
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22
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Chen B, Huang H, Pan CQ. The role of gut microbiota in hepatitis B disease progression and treatment. J Viral Hepat 2022; 29:94-106. [PMID: 34415656 DOI: 10.1111/jvh.13595] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 01/05/2023]
Abstract
Current therapeutic interventions can only suppress hepatitis B virus (HBV) replication or reduce complications without a cure. Therefore, further development of new treatment methods is critical for the global eradication of HBV. Accumulating evidence suggests that the liver and gut share an interconnected relationship referred to as the 'Gut-Liver Axis', where exchanges happen bi-directionally. The gut itself is the host to a unique microbiota profile which has metabolic, immunological, neurological and nutritional functions. Gut microbiota is not only constantly intersecting with the liver but also associated with hepatic injury when dysbiosis occurs. In recent years, there has been increased interest in gut microbiota and its implications on liver disease treatment. Progress has been made in understanding the complex relationship between chronic hepatitis B (CHB) and gut microbiota. New investigative techniques such as colony-free sequencing enabled new perspectives into this field. Mouse models and human studies revealed that HBV infection is associated with significant alteration of gut microbiota, which differ depending on the stage of CHB disease progression. Different mechanisms of the hepatic injury from gut microbiota dysbiosis have also been proposed based on findings of increased intestinal permeability to toxins, disruption of normal bacterial metabolism, and colonization of the gut by oral microbiota. New treatment methods targeting gut microbiota in CHB, such as probiotics and faecal microbiota transplant, have also gained promising results in recent years. The current review recapitulated the most recent investigations into the relationship between gut microbiota and CHB to provide research directions towards the new therapeutic target of CHB.
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Affiliation(s)
- Bryan Chen
- University of California, Los Angeles, California, USA
| | - Harry Huang
- Stony Brook University, Stony Brook, New York, USA
| | - Calvin Q Pan
- Center of Liver Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China.,Division of Gastroenterology and Hepatology, Department of Medicine, NYU Langone Health, NYU School of Medicine, New York, New York, USA
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23
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Esposito MV, Fosso B, Nunziato M, Casaburi G, D'Argenio V, Calabrese A, D'Aiuto M, Botti G, Pesole G, Salvatore F. Microbiome composition indicate dysbiosis and lower richness in tumor breast tissues compared to healthy adjacent paired tissue, within the same women. BMC Cancer 2022; 22:30. [PMID: 34980006 PMCID: PMC8722097 DOI: 10.1186/s12885-021-09074-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 11/30/2021] [Indexed: 12/15/2022] Open
Abstract
Background Breast cancer (BC) is the most common malignancy in women, in whom it reaches 20% of the total neoplasia incidence. Most BCs are considered sporadic and a number of factors, including familiarity, age, hormonal cycles and diet, have been reported to be BC risk factors. Also the gut microbiota plays a role in breast cancer development. In fact, its imbalance has been associated to various human diseases including cancer although a consequential cause-effect phenomenon has never been proven. Methods The aim of this work was to characterize the breast tissue microbiome in 34 women affected by BC using an NGS-based method, and analyzing the tumoral and the adjacent non-tumoral tissue of each patient. Results The healthy and tumor tissues differed in bacterial composition and richness: the number of Amplicon Sequence Variants (ASVs) was higher in healthy tissues than in tumor tissues (p = 0.001). Moreover, our analyses, able to investigate from phylum down to species taxa for each sample, revealed major differences in the two richest phyla, namely, Proteobacteria and Actinobacteria. Notably, the levels of Actinobacteria and Proteobacteria were, respectively, higher and lower in healthy with respect to tumor tissues. Conclusions Our study provides information about the breast tissue microbial composition, as compared with very closely adjacent healthy tissue (paired samples within the same woman); the differences found are such to have possible diagnostic and therapeutic implications; further studies are necessary to clarify if the differences found in the breast tissue microbiome are simply an association or a concausative pathogenetic effect in BC. A comparison of different results on similar studies seems not to assess a universal microbiome signature, but single ones depending on the environmental cohorts’ locations. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-09074-y.
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Affiliation(s)
- Maria Valeria Esposito
- Department of Molecular Medicine and Medical Biotechnologies, University Federico II, Via Sergio Pansini, 5, 80131, Napoli, NA, Italy.,CEINGE - Biotecnologie Avanzate, Via Gaetano Salvatore, 486, 80145, Napoli, Italy
| | - Bruno Fosso
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Consiglio Nazionale delle Ricerche, Via Giovanni Amendola, 122/O, 70126, Bari, BA, Italy
| | - Marcella Nunziato
- Department of Molecular Medicine and Medical Biotechnologies, University Federico II, Via Sergio Pansini, 5, 80131, Napoli, NA, Italy.,CEINGE - Biotecnologie Avanzate, Via Gaetano Salvatore, 486, 80145, Napoli, Italy
| | | | - Valeria D'Argenio
- Department of Molecular Medicine and Medical Biotechnologies, University Federico II, Via Sergio Pansini, 5, 80131, Napoli, NA, Italy.,CEINGE - Biotecnologie Avanzate, Via Gaetano Salvatore, 486, 80145, Napoli, Italy.,Department of Human Sciences and Quality of Life Promotion, San Raffaele Open University, Via di Val Cannuta, 247, 00166, Rome, Italy
| | - Alessandra Calabrese
- Department of Senology, Istituto Nazionale Tumori - IRCCS, 'Fondazione Pascale', Via Mariano Semmola, 53, 80131, Napoli, NA, Italy
| | - Massimiliano D'Aiuto
- Department of Senology, Istituto Nazionale Tumori - IRCCS, 'Fondazione Pascale', Via Mariano Semmola, 53, 80131, Napoli, NA, Italy.,Clinica Villa Fiorita, Via Filippo Saporito, 24, 81031, Aversa, CE, Italy
| | - Gerardo Botti
- Scientific Directorate, Istituto Nazionale Tumori, Fondazione G. Pascale, IRCCS, Via Mariano Semmola, 53, 80131, Napoli, NA, Italy
| | - Graziano Pesole
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Consiglio Nazionale delle Ricerche, Via Giovanni Amendola, 122/O, 70126, Bari, BA, Italy. .,Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari "A. Moro", Piazza Umberto I, 1, BA, 70121, Bari, Italy.
| | - Francesco Salvatore
- Department of Molecular Medicine and Medical Biotechnologies, University Federico II, Via Sergio Pansini, 5, 80131, Napoli, NA, Italy. .,CEINGE - Biotecnologie Avanzate, Via Gaetano Salvatore, 486, 80145, Napoli, Italy.
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24
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Garbuzenko D. Gut microbiota modulation in acute decompensation of liver cirrhosis: theory and therapeutic potential. DOKAZATEL'NAYA GASTROENTEROLOGIYA 2022; 11:65. [DOI: 10.17116/dokgastro20221104165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2024]
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25
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Rocco A, Sgamato C, Compare D, Coccoli P, Nardone OM, Nardone G. Gut Microbes and Hepatic Encephalopathy: From the Old Concepts to New Perspectives. Front Cell Dev Biol 2021; 9:748253. [PMID: 34900994 PMCID: PMC8662376 DOI: 10.3389/fcell.2021.748253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/31/2021] [Indexed: 12/11/2022] Open
Abstract
Hepatic encephalopathy (HE) is a severe complication of advanced liver disease and acute liver failure. The clinical spectrum ranges from minor cognitive dysfunctions to lethargy, depressed consciousness, and coma and significantly impact the quality of life, morbidity, and mortality of the patients. It is commonly accepted that the gut milieu is essential for the development of HE; however, despite intensive research efforts, the pathogenesis of HE is still not fully elucidated. As our knowledge of gut microbiota moves from the pioneering era of culture-dependent studies, the connection between microbes, inflammation, and metabolic pathways in the pathogenesis of HE is becoming increasingly clear, providing exciting therapeutic perspectives. This review will critically examine the latest research findings on the role of gut microbes in the pathophysiological pathways underlying HE. Moreover, currently available therapeutic options and novel treatment strategies are discussed.
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Affiliation(s)
- Alba Rocco
- Gastroenterology and Hepatology, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
| | - Costantino Sgamato
- Gastroenterology and Hepatology, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
| | - Debora Compare
- Gastroenterology and Hepatology, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
| | - Pietro Coccoli
- Gastroenterology and Hepatology, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
| | - Olga Maria Nardone
- Gastroenterology and Hepatology, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
| | - Gerardo Nardone
- Gastroenterology and Hepatology, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
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26
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Naseri M, Houri H, Yadegar A, Asadzadeh Aghdaei H, Zahiri J. Investigation of etiology-specific alterations in the gut microbiota in liver cirrhosis. Expert Rev Gastroenterol Hepatol 2021; 15:1435-1441. [PMID: 34632902 DOI: 10.1080/17474124.2021.1991312] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Liver cirrhosis can develop as a consequence of many chronic liver diseases, such as viral hepatitis, fatty liver, or alcohol abuse. There are insufficient data on whether the different etiologies of liver cirrhosis could be related to the specific gut microbial alterations. This study aimed to compare the diversity and composition of the gut microbiota in different etiologies of liver cirrhosis. METHODS In the current study, the authors used three previously reported metagenomic datasets to investigate the fecal microbiota in cirrhotic patients with distinct etiologies. Microbial diversity and bacterial taxonomic composition were investigated bioinformatically in cirrhotic patients with different etiologies. RESULTS The analysis revealed no evidence of a significant difference in microbial diversity between cirrhotic patients with different etiologies. At the family level, cirrhotic patients with nonalcoholic fatty liver disease (NAFLD) showed a significantly higher abundance of the Enterobacteriaceae family and the related genera. CONCLUSION No robust microbial signal was found to differentiate between various underlying etiologies in cirrhotic patients. The data indicate that the geographical origin of cirrhotic patients could affect the composition of the gut microbiome, the effect of which obscures the impact of the etiology of cirrhosis.
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Affiliation(s)
- Mohadeseh Naseri
- Bioinformatics and Computational Omics Lab (Biocool), Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hamidreza Houri
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Yadegar
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Javad Zahiri
- Department of Neuroscience, University of California, San Diego, CA, USA
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Peruhova M, Peshevska-Sekulovska M, Velikova T. Interactions between human microbiome, liver diseases, and immunosuppression after liver transplant. World J Immunol 2021; 11:11-16. [DOI: 10.5411/wji.v11.i2.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 08/16/2021] [Accepted: 10/15/2021] [Indexed: 02/06/2023] Open
Abstract
In liver transplant patients, solid tumors and post-transplant lymphoproliferative disorders have emerged as significant long-term mortality causes. In addition, it is assumed that de novo malignancy after liver transplantation (LT) is the second-leading cause of death after cardiovascular complications. Well-established risk factors for post-transplant lymphoproliferative disorders and solid tumors are calcineurin inhibitors, tacrolimus, and cyclosporine, the cornerstones of all immunosuppressive therapies used after LT. The loss of immunocompetence facilitated by the host immune system due to prolonged immunosuppressive therapy leads to cancer development, including LT patients. Furthermore, various mechanisms such as bacterial dysbiosis, activation through microbe-associated molecular patterns, leaky gut, and bacterial metabolites can drive cancer-promoting liver inflammation, fibrosis, and genotoxicity. Therefore, changes in human microbiota composition may contribute further to de novo carcinogenesis associated with the severe immunosuppression after LT.
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Affiliation(s)
- Milena Peruhova
- Department of Gastroenterology, University Hospital Lozenetz, Sofia 1407, Bulgaria
- Medical Faculty, Sofia University St. Kliment Ohridski, Sofia 1407, Bulgaria
| | | | - Tsvetelina Velikova
- Medical Faculty, Sofia University St. Kliment Ohridski, Sofia 1407, Bulgaria
- Department of Clinical Immunology, University Hospital Lozenetz, Sofia 1407, Bulgaria
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28
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Huan H, Ren T, Xu L, Hu H, Liu C. Compositional distinction of gut microbiota between Han Chinese and Tibetan populations with liver cirrhosis. PeerJ 2021; 9:e12142. [PMID: 34616612 PMCID: PMC8449536 DOI: 10.7717/peerj.12142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 08/19/2021] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Liver cirrhosis (LC) is caused by numerous chronic liver diseases and its complications are associated with qualitative and quantitative alterations of the gut microbiota. Previous studies have revealed the characteristics of gut microbiota in Han Chinese patients with LC and different compositions of gut microbiota were reported between the Tibetan and Han Chinese populations. This study was designed to evaluate the unique features of the gut microbiota of Tibetans and compare the differences of gut microbiota between Tibetan and Han Chinese patients with LC. METHODS Thirty-six patients with liver cirrhosis and nineteen healthy volunteers, from both Tibetan and Han Chinese populations, were enrolled and fecal samples were collected for 16S rRNA gene sequencing analyses. RESULTS Significant differences were found in the gut microbiota of healthy volunteers and between Tibetan and Han Chinese patients with LC. In the Han Chinese patients with cirrhosis (HLC) group the relative abundances of the phylum Bacteroidetes was significantly reduced (P < 0.001), whereas in the Tibetan patients with cirrhosis (TLC) group Firmicutes and Actinobacteria were highly enriched (P = 0.01 and 0.03, respectively). At the genus level, the relative abundances of Anaerostipes (P < 0.001), Bifidobacterium (P = 0.03), and Blautia (P = 0.004) were prevalent, while Alloprevotella, Dorea, Prevotella_2, Prevotella_7 and Prevotella_9 were decreased in the TLC group compared to the HLC group (P < 0.01). CONCLUSION Our findings showed how the intestinal bacterial community shifted in Tibetan patients with cirrhosis.
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Affiliation(s)
- Hui Huan
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region, Chengdu, China
| | - Tao Ren
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region, Chengdu, China
| | - Li Xu
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region, Chengdu, China
| | - Hong Hu
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region, Chengdu, China
| | - Chao Liu
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region, Chengdu, China
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The Prophylactic Effects of Glutamine on Muscle Protein Synthesis and Degradation in Rats with Ethanol-Induced Liver Damage. Nutrients 2021; 13:nu13082788. [PMID: 34444950 PMCID: PMC8398394 DOI: 10.3390/nu13082788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/09/2021] [Accepted: 08/12/2021] [Indexed: 12/13/2022] Open
Abstract
The purpose of this research was to investigate the prophylactic effects of glutamine on muscle protein synthesis and degradation in rats with ethanol-induced liver injury. For the first 2 weeks, Wistar rats were divided into two groups and fed a control (n = 16) or glutamine-containing diet (n = 24). For the following 6 weeks, rats fed the control diet were further divided into two groups (n = 8 per group) according to whether their diet contained no ethanol (CC) or did contain ethanol (CE). Rats fed the glutamine-containing diet were also further divided into three groups (n = 8 per group), including a GG group (glutamine-containing diet without ethanol), GE group (control diet with ethanol), and GEG group (glutamine-containing diet with ethanol). After 6 weeks, results showed that hepatic fatty change, inflammation, altered liver function, and hyperammonemia had occurred in the CE group, but these were attenuated in the GE and GEG groups. Elevated intestinal permeability and a higher plasma endotoxin level were observed in the CE group, but both were lower in the GE and GEG groups. The level of a protein synthesis marker (p70S6K) was reduced in the CE group but was higher in both the GE and GEG groups. In conclusion, glutamine supplementation might elevate muscle protein synthesis by improving intestinal health and ameliorating liver damage in rats with chronic ethanol intake.
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30
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Feng R, Guo X, Kou Y, Xu X, Hong C, Zhang W, An Y, Philips CA, Mancuso A, Qi X. Association of lipid profile with decompensation, liver dysfunction, and mortality in patients with liver cirrhosis. Postgrad Med 2021; 133:626-638. [PMID: 33993838 DOI: 10.1080/00325481.2021.1930560] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Lipid metabolism is often disrupted in liver cirrhosis. The present study aimed to evaluate the impact of lipid profile on decompensation events, severity of liver dysfunction, and death in patients with liver cirrhosis. METHODS In a cross-sectional study, 778 patients with lipid profile data were enrolled, and then were divided into 240 and 538 patients with and without liver cirrhosis, respectively. In a cohort study, 314 cirrhotic patients with lipid profile data, who were prospectively followed, were enrolled. Lipid profile included total cholesterol (TC), high-density lipoprotein-cholesterol (HDL-c), low-density lipoprotein-cholesterol (LDL-c), triglycerides (TG), and lipoprotein(a). RESULTS In the cross-sectional study, cirrhotic patients with decompensation events had significantly lower levels of TC and lipoprotein(a) than those without; and cirrhotic patients with Child-Pugh class B and C had significantly lower levels of TC, HDL-c, LDL-c, and lipoprotein(a) than those with Child-Pugh class A. In the cohort study, there was an inverse association of survival with TC, HDL-c, and lipoprotein(a) levels; after adjusting for MELD score, TC (Hazard Ratio [HR] = 1.703, P = 0.034) and HDL-c (HR = 2.036, P = 0.005), but not lipoprotein(a) (HR = 1.377, P = 0.191), remained a significant predictor of death; when TC, HDL-c, lipoprotein(a), and MELD score were included in the multivariate Cox regression analysis, HDL-c (HR = 1.844, P = 0.024) was the only independent predictor of death. CONCLUSIONS Decreased levels in specific components of lipid profile indicate more decompensation events, worse liver function, and reduced survival in liver cirrhosis. MELD score combined with HDL-c should be promising for the assessment of outcomes of cirrhotic patients.
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Affiliation(s)
- Ruirui Feng
- Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
- Postgraduate College, Jinzhou Medical University, Jinzhou, Liaoning P R. China
| | - Xiaozhong Guo
- Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
| | - Yun Kou
- Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
- Department of Ultrasound, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
| | - Xiangbo Xu
- Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
| | - Cen Hong
- Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
- Postgraduate College, Jinzhou Medical University, Jinzhou, Liaoning P R. China
| | - Wenwen Zhang
- Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
- Department of Nuclear Medicine, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
| | - Yang An
- Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
| | - Cyriac Abby Philips
- The Liver Unit and Monarch Liver Lab, Cochin Gastroenterology Group, Ernakulam Medical Center, Kochi, Kerala, India
| | - Andrea Mancuso
- Medicina Interna 1, ARNAS Civico - Di Cristina - Benfratelli, Palermo, Italy
| | - Xingshun Qi
- Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
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Xue C, Li Y, Lv H, Zhang L, Bi C, Dong N, Shan A, Wang J. Oleanolic Acid Targets the Gut-Liver Axis to Alleviate Metabolic Disorders and Hepatic Steatosis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:7884-7897. [PMID: 34251802 DOI: 10.1021/acs.jafc.1c02257] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This study investigated the effects of oleanolic acid (OA) on hepatic lipid metabolism and gut-liver axis homeostasis in an obesity-related non-alcoholic fatty liver disease (NAFLD) nutritional animal model and explored possible molecular mechanisms behind its effects. The results revealed that OA ameliorated the development of metabolic disorders, insulin resistance, and hepatic steatosis in obese rats. Meanwhile, OA restored high-fat-diet (HFD)-induced intestinal barrier dysfunction and endotoxin-mediated induction of toll-like-receptor-4-related pathways, subsequently inhibiting endotoxemia and systemic inflammation and balancing the homeostasis of the gut-liver axis. OA also reshaped the composition of the gut microbiota of HFD-fed rats by reducing the Firmicutes/Bacteroidetes ratio and increasing the abundance of butyrate-producing bacteria. Our results support the applicability of OA as a treatment for obesity-related NAFLD through its anti-inflammatory, antioxidant, and prebiotic integration responses mediated by the gut-liver axis.
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Affiliation(s)
- Chenyu Xue
- Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Ying Li
- Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Hao Lv
- Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Lei Zhang
- Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Chongpeng Bi
- Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Na Dong
- Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Anshan Shan
- Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin, Heilongjiang 150030, People's Republic of China
| | - Jiali Wang
- College of Animal Science and Veterinary Medicine, Jinzhou Medical University, Jinzhou, Liaoning 121001, People's Republic of China
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Korlepara V, Kumar N, Banerjee S. Gut Microbiota And Inflammatory Disorders. Curr Drug Targets 2021; 23:156-169. [PMID: 34165407 DOI: 10.2174/1389450122666210623125603] [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: 01/08/2021] [Revised: 03/14/2021] [Accepted: 03/18/2021] [Indexed: 11/22/2022]
Abstract
The gut has been colonized with bacteria, fungi, viruses, archaea, eukarya. The human and bacterial cells are found in a 1:1 ratio, while the variance in the diversity of gut microbiota may result in Dysbiosis. Gut dysbiosis may result in various pathological manifestations. Beneficial gut microbiota may synthesize short-chain fatty acids like acetate, butyrate, propionate, while -gram-negative organisms are the primary source of LPS, a potent pro-inflammatory mediator. Both gut microbiota and microbial products may be involved in immunomodulation as well as inflammation. Prebiotics and probiotics are being explored as therapeutic agents against various inflammatory and autoimmune disorders. Here we discuss the molecular mechanisms involved in gut bacteria-mediated modulation of various inflammatory and autoimmune disorders.
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Affiliation(s)
- Vamsi Korlepara
- Department of Pharmacology and Toxicology National Institute of Pharmaceutical Education and Research, Kolkata, India
| | - Naveen Kumar
- Department of Pharmacology and Toxicology National Institute of Pharmaceutical Education and Research, Kolkata, India
| | - Sugato Banerjee
- Department of Pharmacology and Toxicology National Institute of Pharmaceutical Education and Research, Kolkata, India
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Mouradian W, Lee J, Wilentz J, Somerman M. A Perspective: Integrating Dental and Medical Research Improves Overall Health. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.699575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The past decade has seen marked increases in research findings identifying oral-systemic links. Yet, much of dental research remains poorly integrated with mainstream biomedical research. The historic separation of dentistry from medicine has led to siloed approaches in education, research and practice, ultimately depriving patients, providers, and policy makers of findings that could benefit overall health and well-being. These omissions amount to lost opportunities for risk assessment, diagnosis, early intervention and prevention of disease, increasing cost and contributing to a fragmented and inefficient healthcare delivery system. This perspective provides examples where fostering interprofessional research collaborations has advanced scientific understanding and yielded clinical benefits. In contrast are examples where failure to include dental research findings has limited progress and led to adverse health outcomes. The impetus to overcome the dental-medical research divide gains further urgency today in light of the coronavirus pandemic where contributions that dental research can make to understanding the pathophysiology of the SARS-CoV-2 virus and in diagnosing and preventing infection are described. Eliminating the research divide will require collaborative and trans-disciplinary research to ensure incorporation of dental research findings in broad areas of biomedical research. Enhanced communication, including interoperable dental/medical electronic health records and educational efforts will be needed so that the public, health care providers, researchers, professional schools, organizations, and policymakers can fully utilize oral health scientific information to meet the overall health needs of the public.
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Shivaji S. A systematic review of gut microbiome and ocular inflammatory diseases: Are they associated? Indian J Ophthalmol 2021; 69:535-542. [PMID: 33595467 PMCID: PMC7942081 DOI: 10.4103/ijo.ijo_1362_20] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The primary focus of this review was to establish the possible association of dysbiotic changes in the gut bacterial microbiomes with both intestinal and extra-intestinal diseases with emphasis on ocular diseases such as bacterial keratitis, fungal keratitis, uveitis, age-related macular degeneration, and ocular mucosal diseases. For this particular purpose, a systematic search was conducted using PubMed and Google Scholar for publications related to gut microbiome and human health (using the keywords: gut microbiome, ocular disease, dysbiosis, keratitis, uveitis, and AMD). The predictions are that microbiome studies would help to unravel dysbiotic changes in the gut bacterial microbiome at the taxonomic and functional level and thus form the basis to mitigate inflammatory diseases of the eye by using nutritional supplements or fecal microbiota transplantation.
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Affiliation(s)
- Sisinthy Shivaji
- Scientist Emeritus and Distinguished Scientist, Jhaveri Microbiology Centre, Prof Brien Holden Eye Research Centre, L V Prasad Eye Institute, Hyderabad, Telangana, India
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Intestinal Microbiota and Liver Diseases: Insights into Therapeutic Use of Traditional Chinese Medicine. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6682581. [PMID: 33976705 PMCID: PMC8087485 DOI: 10.1155/2021/6682581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/01/2021] [Accepted: 04/10/2021] [Indexed: 11/18/2022]
Abstract
Liver disease is a leading cause of global morbidity and mortality, for which inflammation, alcohol use, lipid metabolic disorders, disturbance to bile acid metabolism, and endotoxins are common risk factors. Traditional Chinese Medicine (TCM) with its "holistic approach" is widely used throughout the world as a complementary, alternative therapy, due to its clinical efficacy and reduced side effects compared with conventional medicines. However, due to a lack of reliable scientific evidence, the role of TCM in the prevention and treatment of liver disease remains unclear. Over recent years, with the rapid development of high-throughput sequencing, 16S rRNA detection, and bioinformatics methodology, it has been gradually recognized that the regulation of intestinal microbiota by TCM can play a substantial role in the treatment of liver disease. To better understand how TCM regulates the intestinal microbiota and suppresses liver disease, we have reviewed and analyzed the results of existing studies and summarized the relationship and risk factors between intestinal microbiota and liver disease. The present review summarizes the related mechanisms by which TCM affects the composition and metabolites of the intestinal microbiome.
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Wang Y, Li X, Chen Q, Jiao F, Shi C, Pei M, Wang L, Gong Z. Histone Deacetylase 6 Regulates the Activation of M1 Macrophages by the Glycolytic Pathway During Acute Liver Failure. J Inflamm Res 2021; 14:1473-1485. [PMID: 33883923 PMCID: PMC8055295 DOI: 10.2147/jir.s302391] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 03/18/2021] [Indexed: 12/19/2022] Open
Abstract
Background The glycolysis pathway of M1 macrophages is a key factor affecting the inflammatory response. The aim of this article is to investigate the role of histone deacetylase 6 (HDAC6) in the M1 macrophage glycolysis pathway during acute liver failure (ALF). Methodology Targeted metabolomics for quantitative analysis of energy metabolites technology was used to detect the characteristics of energy metabolism for 8 ALF patients and 8 normal volunteers. The ALF mice model was intervened with HDAC6 inhibitor ACY-1215. iTRAQ/TMT quantitative proteomics was used to detect protein expression in livers in different mice groups. The liver function, energy metabolites, M1 macrophages, cytokines, and pathological structure, DDX3X, NLRP3 and DNMT1 in liver tissue were detected. The changes of the above molecules were verified in cell groups. Results ALF patients and mice have significant energy metabolism disorders, accompanied by activation of M1 macrophages. After the intervention of ACY-1215, the activated M1 macrophages and cytokines levels in the mouse liver were reduced. The levels of IDH1, MDH1, and ATP were significantly increased. The expression of DDX3X increased, while the expression of NLRP3 and DNMT1 decreased. ACY-1215 could reduce the model cell apoptosis level and inflammatory response, and improve energy metabolism. It could also promote the expression of DDX3X, and inhibit the expression of NLRP3 and DNMT1. Conclusion ACY-1215 could inhibit the activation of M1 macrophages by improving the glycolytic pathway through regulating DNMT1 and DDX3X/NLRP3 signals to alleviate ALF.
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Affiliation(s)
- Yao Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
| | - Xun Li
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
| | - Qian Chen
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
| | - Fangzhou Jiao
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
| | - Chunxia Shi
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
| | - Maohua Pei
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
| | - Luwen Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
| | - Zuojiong Gong
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China
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Gui QF, Jin HL, Zhu F, Lu HF, Zhang Q, Xu J, Yang YM, Xiao C. Gut microbiota signatures in Schistosoma japonicum infection-induced liver cirrhosis patients: a case-control study. Infect Dis Poverty 2021; 10:43. [PMID: 33771232 PMCID: PMC8004463 DOI: 10.1186/s40249-021-00821-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 03/08/2021] [Indexed: 12/15/2022] Open
Abstract
Background Several studies have assessed the role of gut microbiota in various cirrhosis etiologies, however, none has done so in the context of Schistosoma japonicum infection in humans. We, therefore, sought to determine whether gut microbiota is associated with S. japonicum infection-induced liver cirrhosis. Methods From December 2017 to November 2019, 24 patients with S. japonicum infection-induced liver cirrhosis, as well as 25 age- and sex-matched controls from the Zhejiang Province, China, were enrolled. Fecal samples were collected and used for 16S rRNA gene sequencing (particularly, the hypervariable V4 region) using the Illumina MiSeq system. Wilcoxon Rank-Sum and PERMANOVA tests were used for analysis. Results Eight hundred and seven operational taxonomic units (OTUs) were detected, of which, 491 were common between the two groups, whereas 123 and 193 were unique to the control and cirrhosis groups, respectively. Observed species, Chao, ACE, Shannon, Simpson, and Good’s coverage indexes, used for alpha diversity analysis, showed values of 173.4 ± 63.8, 197.7 ± 73.0, 196.3 ± 68.9, 2.96 ± 0.57, 0.13 ± 0.09, and 1.00 ± 0.00, respectively, in the control group and 154.0 ± 68.1, 178.6 ± 75.1, 179.9 ± 72.4, 2.68 ± 0.76, 0.19 ± 0.18, and 1.00 ± 0.00, respectively, in the cirrhosis group, with no significant differences observed between the groups. Beta diversity was evaluated by weighted UniFrac distances, with values of 0.40 ± 0.13 and 0.40 ± 0.11 in the control and cirrhosis groups, respectively (P > 0.05). PCA data also confirmed this similarity (P > 0.05). Meanwhile, the relative abundance of species belonging to the Bacilli class was higher in cirrhosis patients [median: 2.74%, interquartile range (IQR): 0.18–7.81%] than healthy individuals (median: 0.15%, IQR: 0.47–0.73%; P < 0.01), and that of Lactobacillales order was also higher in cirrhosis patients (median: 2.73%, IQR: 0.16–7.80%) than in healthy individuals (median: 0.12%, IQR: 0.03–0.70%; P < 0.05). Conclusions Cumulatively, our results suggest that the gut microbiota of S. japonicum infection-induced liver cirrhosis patients is similar to that of healthy individuals, indicating that bacterial taxa cannot be used as non-invasive biomarkers for S. japonicum infection-induced liver cirrhosis. ![]()
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Affiliation(s)
- Qi-Feng Gui
- Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Hui-Lin Jin
- Department of Geriatrics, Wangdian People's Hospital, Jiaxing, Zhejiang, People's Republic of China
| | - Feng Zhu
- Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Hai-Feng Lu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Qin Zhang
- Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Jia Xu
- Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China.,Department of Emergency Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Yun-Mei Yang
- Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China. .,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China.
| | - Chi Xiao
- School of Basic Medical Sciences & Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang, People's Republic of China.
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Ofori-Asenso R, Mohsenpour MA, Nouri M, Faghih S, Liew D, Mazidi M. Association of Spicy Chilli Food Consumption With Cardiovascular and All-Cause Mortality: A Meta-Analysis of Prospective Cohort Studies. Angiology 2021; 72:625-632. [PMID: 33657876 DOI: 10.1177/0003319721995666] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
This systematic review and meta-analysis examined the association between spicy food (chilli pepper, chilli sauce, or chilli oil) consumption with cardiovascular and all-cause mortality. Medline and EMBASE were searched from their inception until February 2020 to identify relevant prospective cohort studies. Hazard ratios (HRs)/relative risk (RRs) were pooled via random-effect meta-analysis. Of the 4387 citations identified, 4 studies (from the United States, China, Italy, and Iran) were included in the meta-analysis. The included studies involved a total of 564 748 adults (aged ≥18 years; 51.2% female) followed over a median duration of 9.7 years. The pooled data suggested that compared with people who did not regularly consume spicy food (none/<1 d/wk), regular consumers of spicy food experienced a 12% (HR/RRpooled 0.88, 95% CI, 0.86-0.90; I 2 = 0%) lower risk of all-cause mortality. Moreover, spicy food consumption was associated with significant reduction in the risk of death from cardiac diseases (HR/RRpooled 0.82, 0.73-0.91; I 2 = 0%), but not from cerebrovascular disorders (HR/RRpooled 0.79, 0.53-1.17; I 2 = 72.2%). In conclusion, available epidemiological studies suggest that the consumption of spicy chilli food is associated with reduced risk of all-cause as well as heart disease-related mortality. Further studies in different populations are needed to confirm this association.
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Affiliation(s)
- Richard Ofori-Asenso
- Faculty of Health and Medical Sciences, Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark.,Department of Epidemiology and Preventive Medicine, 22457Monash University, Melbourne, Victoria, Australia
| | - Mohammad Ali Mohsenpour
- Department of Clinical Nutrition, School of Nutrition and Food Sciences, 48435Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehran Nouri
- Department of Community Nutrition, School of Nutrition and Food Sciences, 48435Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shiva Faghih
- Department of Community Nutrition, School of Nutrition and Food Sciences, 48435Shiraz University of Medical Sciences, Shiraz, Iran
| | - Danny Liew
- Department of Epidemiology and Preventive Medicine, 22457Monash University, Melbourne, Victoria, Australia
| | - Mohsen Mazidi
- Department of Twin Research and Genetic Epidemiology, 4616Kings College London, London, UK
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Trebicka J, Bork P, Krag A, Arumugam M. Utilizing the gut microbiome in decompensated cirrhosis and acute-on-chronic liver failure. Nat Rev Gastroenterol Hepatol 2021; 18:167-180. [PMID: 33257833 DOI: 10.1038/s41575-020-00376-3] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/07/2020] [Indexed: 12/12/2022]
Abstract
The human gut microbiome has emerged as a major player in human health and disease. The liver, as the first organ to encounter microbial products that cross the gut epithelial barrier, is affected by the gut microbiome in many ways. Thus, the gut microbiome might play a major part in the development of liver diseases. The common end stage of liver disease is decompensated cirrhosis and the further development towards acute-on-chronic liver failure (ACLF). These conditions have high short-term mortality. There is evidence that translocation of components of the gut microbiota, facilitated by different pathogenic mechanisms such as increased gut epithelial permeability and portal hypertension, is an important driver of decompensation by induction of systemic inflammation, and thereby also ACLF. Elucidating the role of the gut microbiome in the aetiology of decompensated cirrhosis and ACLF deserves further investigation and improvement; and might be the basis for development of diagnostic and therapeutic strategies. In this Review, we focus on the possible pathogenic, diagnostic and therapeutic role of the gut microbiome in decompensation of cirrhosis and progression to ACLF.
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Affiliation(s)
- Jonel Trebicka
- Translational Hepatology, Department of Internal Medicine I, Goethe University Clinic Frankfurt, Frankfurt, Germany. .,European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain. .,Department of Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark. .,Institute for Bioengineering of Catalonia, Barcelona, Spain.
| | - Peer Bork
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Aleksander Krag
- Department of Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark
| | - Manimozhiyan Arumugam
- Department of Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark. .,Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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Fan Y, Li Y, Chu Y, Liu J, Cui L, Zhang D. Toll-Like Receptors Recognize Intestinal Microbes in Liver Cirrhosis. Front Immunol 2021; 12:608498. [PMID: 33708204 PMCID: PMC7940369 DOI: 10.3389/fimmu.2021.608498] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 01/11/2021] [Indexed: 12/15/2022] Open
Abstract
Liver cirrhosis is one major cause of mortality in the clinic, and treatment of this disease is an arduous task. The scenario will be even getting worse with increasing alcohol consumption and obesity in the current lifestyle. To date, we have no medicines to cure cirrhosis. Although many etiologies are associated with cirrhosis, abnormal intestinal microbe flora (termed dysbiosis) is a common feature in cirrhosis regardless of the causes. Toll-like receptors (TLRs), one evolutional conserved family of pattern recognition receptors in the innate immune systems, play a central role in maintaining the homeostasis of intestinal microbiota and inducing immune responses by recognizing both commensal and pathogenic microbes. Remarkably, recent studies found that correction of intestinal flora imbalance could change the progress of liver cirrhosis. Therefore, correction of intestinal dysbiosis and targeting TLRs can provide novel and promising strategies in the treatment of liver cirrhosis. Here we summarize the recent advances in the related topics. Investigating the relationship among innate immunity TLRs, intestinal flora disorders, and liver cirrhosis and exploring the underlying regulatory mechanisms will assuredly have a bright future for both basic and clinical research.
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Affiliation(s)
- Yujing Fan
- Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yunpeng Li
- Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yanjie Chu
- Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jing Liu
- Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lin Cui
- Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Dekai Zhang
- Center for Infectious and Inflammatory Diseases, Texas A&M University, Houston, TX, United States
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Liu Y, Fan L, Cheng Z, Yu L, Cong S, Hu Y, Zhu L, Zhang B, Cheng Y, Zhao P, Zhao X, Cheng M. Fecal transplantation alleviates acute liver injury in mice through regulating Treg/Th17 cytokines balance. Sci Rep 2021; 11:1611. [PMID: 33452411 PMCID: PMC7810881 DOI: 10.1038/s41598-021-81263-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 01/04/2021] [Indexed: 12/15/2022] Open
Abstract
Changes in intestinal microecology during acute liver failure (ALF) directly affect the occurrence and development of the disease. The study aimed to investigate the relationship between the intestinal microbiota and the key immune cells. Fecal microbiota transplantation (FMT) was used to determine whether ALF can balance Th17/Treg cytokines. The relationship between gut microbiota and clinical indicators was analyzed. BALB/c mice were treated with d-galactosamine (d-GalN) to induce a murine ALF model. FMT to d-GalN mice was conducted to test for liver function indicators. Results showed that the proportions of Lachnospiraceae, Prevotella, S24-7, Odoribacter and Rikenellaceae in d-GalN mice with intestinal microbiota disorder were restored after FMT. Further, CIA analysis showed that bacteria had a covariant relationship with clinical indicators. Microbiota could account for changes in 49.9% of the overall clinical indicators. Adonis analysis showed that Ruminococcus, and Enterococcus have a greater impact on clinical indicators. FMT down-regulated the expression of IL-17A, TNF-α, and TGF-β, while up-regulated IL-10 and IL-22. Transplantation of feces from Saccharomyces boulardii donor mice improved GalN-induced liver damage. These findings indicate that FMT attenuates d-GalN-induced liver damage in mice, and a clinical trial is required to validate the relevance of our findings in humans, and to test whether this therapeutic approach is effective for patients with ALF.
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Affiliation(s)
- Yongmei Liu
- Department of Medical Examination, Guizhou Medical University, Guiyang, Guizhou, China.,Clinical Laboratory Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Linda Fan
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, No. 28 Guiyang Street, Guiyang, 550002, Guizhou, China
| | - Zhuo Cheng
- Department of Clinical Medicine, Peking University Health Science Center School of Foundational Education, Peking University, Beijing, China
| | - Lei Yu
- Guizhou Maternal and Child Health Care Center, Guiyang, Guizhou, China
| | - Shuo Cong
- Deparment of Blood Transfusion, The Affiliated Tumor Hospital, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yaxin Hu
- Prenatal Diagnosis Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Lili Zhu
- Department of Blood Transfusion, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Baofang Zhang
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, No. 28 Guiyang Street, Guiyang, 550002, Guizhou, China
| | - Yiju Cheng
- Department of Respiratory, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Peiling Zhao
- Clinical Laboratory Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Xueke Zhao
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, No. 28 Guiyang Street, Guiyang, 550002, Guizhou, China.
| | - Mingliang Cheng
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, No. 28 Guiyang Street, Guiyang, 550002, Guizhou, China.
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Chen YL, Shirakawa H, Lu NS, Peng HC, Xiao Q, Yang SC. Impacts of fish oil on the gut microbiota of rats with alcoholic liver damage. J Nutr Biochem 2020; 86:108491. [DOI: 10.1016/j.jnutbio.2020.108491] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 06/03/2020] [Accepted: 08/07/2020] [Indexed: 12/19/2022]
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Longo L, Tonin Ferrari J, Rampelotto PH, Hirata Dellavia G, Pasqualotto A, P Oliveira C, Thadeu Schmidt Cerski C, Reverbel da Silveira T, Uribe-Cruz C, Álvares-da-Silva MR. Gut Dysbiosis and Increased Intestinal Permeability Drive microRNAs, NLRP-3 Inflammasome and Liver Fibrosis in a Nutritional Model of Non-Alcoholic Steatohepatitis in Adult Male Sprague Dawley Rats. Clin Exp Gastroenterol 2020; 13:351-368. [PMID: 32982365 PMCID: PMC7509481 DOI: 10.2147/ceg.s262879] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/23/2020] [Indexed: 12/12/2022] Open
Abstract
Background/Aim The interactions between the gut and liver have been described in the progression of non-alcoholic steatohepatitis (NASH). The aim of this study was to develop an experimental nutritional model of NASH simulating metabolic changes occurring in humans. Materials and Methods Adult male Sprague Dawley rats were randomized into two groups: controls (standard diet) and intervention (high-fat and choline-deficient diet) for 16 weeks, each experimental group with 10 animals. Biochemical analysis, hepatic lipid content, microRNAs, inflammatory, gut permeability markers and gut microbiota were measured. Results Animals in the intervention group showed significantly higher delta Lee index (p=0.017), abdominal circumference (p<0.001), abdominal adipose tissue (p<0.001) and fresh liver weight (p<0.001), as well as higher serum levels of alanine aminotransferase (p=0.010), glucose (p=0.013), total cholesterol (p=0.033), LDL cholesterol (p=0.011), and triglycerides (p=0.011), and lower HDL cholesterol (p=0.006) compared to the control group. Higher TLR4 (p=0.041), TLR9 (p=0.033), MyD88 (p=0.001), Casp1 (p<0.001), NLPR3 (p=0.019), liver inflammation index interleukin (IL)-1β/IL10 (p<0.001), IL6/IL10 (p=0.002) and TNFα/IL10 (p=0.001) were observed in the intervention group, and also lower permeability markers Ocln (p=0.003) and F11r (p=0.041). Gene expression of miR-122 increased (p=0.041) and miR-145 (p=0.010) decreased in the intervention group. Liver steatosis, inflammation and fibrosis, along with collagen fiber deposition increment (p<0.001), were seen in the intervention group. Regarding gut microbiota, Bray-Curtis dissimilarity index and number of operational taxonomic units were significantly different (p<0.001) between the groups. Composition of the gut microbiota showed a significant correlation with histopathological score of NAFLD (r=0.694) and index IL-1β/IL-10 (r=0.522). Conclusion This experimental model mimicking human NASH demonstrated gut and liver interaction, with gut microbiota and intestinal permeability changes occurring in parallel with systemic and liver inflammation, miRNAs regulation and liver tissue damage.
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Affiliation(s)
- Larisse Longo
- Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,Experimental Laboratory of Hepatology and Gastroenterology, Center for Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Jéssica Tonin Ferrari
- Experimental Laboratory of Hepatology and Gastroenterology, Center for Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Pabulo Henrique Rampelotto
- Experimental Laboratory of Hepatology and Gastroenterology, Center for Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil.,Graduate Program in Pharmaceutical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Gustavo Hirata Dellavia
- School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Amanda Pasqualotto
- Experimental Laboratory of Hepatology and Gastroenterology, Center for Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Claudia P Oliveira
- Department of Gastroenterology (LIM07), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Carlos Thadeu Schmidt Cerski
- Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,Unit of Surgical Pathology, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Themis Reverbel da Silveira
- Experimental Laboratory of Hepatology and Gastroenterology, Center for Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Carolina Uribe-Cruz
- Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,Experimental Laboratory of Hepatology and Gastroenterology, Center for Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Mário Reis Álvares-da-Silva
- Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,Experimental Laboratory of Hepatology and Gastroenterology, Center for Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil.,School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,Division of Gastroenterology, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
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Zhang Q, Gao F, Yang X, Hu Y, Liu Y, Hou Y, Li Y, Zhu B, Niu S, Huang Y, Wang X. Protective Effect of Probiotics against Esophagogastric Variceal Rebleeding in Patients with Liver Cirrhosis after Endoscopic Therapy. Med Sci Monit 2020; 26:e924040. [PMID: 32769964 PMCID: PMC7433391 DOI: 10.12659/msm.924040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/28/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Probiotic therapy has been shown to be beneficial against some liver diseases. However, there is still uncertainty regarding the clinical efficacy of probiotics for the treatment of variceal rebleeding. This research explored the efficacy of probiotics in variceal rebleeding. MATERIAL AND METHODS This was a retrospective study of 704 consecutive patients with liver cirrhosis who recovered from esophagogastric variceal bleeding after endoscopic treatment. Patients were subdivided into a probiotics cohort (n=214) and a non-probiotics cohort (n=490) based on the cumulative defined daily dose (cDDD) of probiotics received during follow-up. Propensity score matching was utilized to obtain a relatively balanced cohort of 200 patients per group for the analysis. Patients were monitored for rebleeding during the one-year follow-up. RESULTS Multivariate Cox regression analysis revealed that probiotic therapy (≥28cDDD) was an independent protector against rebleeding (AHR=0.623; 95% CI=0.488-0.795; P<0.001). After propensity score matching, Kaplan-Meier analysis revealed that the rebleeding rate was higher in the non-probiotics cohort (n=200) than in the probiotics cohort (n=200) (56.0% vs. 44.0%, P=0.002). The incidence of rebleeding decreased with increased probiotic dosage (56.0%, 48.5%, 43.3%, and 38.1% in <28 cDDD, 28-60 cDDD, 61-90 cDDD, and >90 cDDD groups, respectively; P=0.011). The median rebleeding interval in the probiotics cohort (n=95) was significantly longer than that in the non-probiotics cohort (n=261) (147.0 vs. 91.0 days; P<0.001). CONCLUSIONS Adjuvant probiotic therapy significantly reduced the incidence of variceal rebleeding and delayed rebleeding after endotherapy in patients with cirrhosis.
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Affiliation(s)
- Qun Zhang
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China
| | - Fangyuan Gao
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China
| | - Xue Yang
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China
| | - Ying Hu
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China
| | - Yao Liu
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China
| | - Yixin Hou
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China
| | - Yuxin Li
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China
| | - Bingbing Zhu
- Department of Gastroenterology, Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, P.R. China
| | - Shuaishuai Niu
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China
| | - Yunyi Huang
- Department of Gastroenterology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, P.R. China
| | - Xianbo Wang
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China
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Gut Microbiota and Liver Interaction through Immune System Cross-Talk: A Comprehensive Review at the Time of the SARS-CoV-2 Pandemic. J Clin Med 2020; 9:jcm9082488. [PMID: 32756323 PMCID: PMC7464500 DOI: 10.3390/jcm9082488] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/23/2020] [Accepted: 07/28/2020] [Indexed: 02/06/2023] Open
Abstract
Background and aims: The gut microbiota is a complex ecosystem containing bacteria, viruses, fungi, yeasts and other single-celled organisms. It is involved in the development and maintenance of both innate and systemic immunity of the body. Emerging evidence has shown its role in liver diseases through the immune system cross-talk. We review herein literature data regarding the triangular interaction between gut microbiota, immune system and liver in health and disease. Methods: We conducted a search on the main medical databases for original articles, reviews, meta-analyses, randomized clinical trials and case series using the following keywords and acronyms and their associations: gut microbiota, microbiome, gut virome, immunity, gastrointestinal-associated lymphoid tissue (GALT), non-alcoholic fatty liver disease (NAFLD), non-alcoholic steato-hepatitis (NASH), alcoholic liver disease, liver cirrhosis, hepatocellular carcinoma. Results: The gut microbiota consists of microorganisms that educate our systemic immunity through GALT and non-GALT interactions. The latter maintain health but are also involved in the pathophysiology and in the outcome of several liver diseases, particularly those with metabolic, toxic or immune-mediated etiology. In this context, gut virome has an emerging role in liver diseases and needs to be further investigated, especially due to the link reported between severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infection and hepatic dysfunctions. Conclusions: Changes in gut microbiota composition and alterations in the immune system response are involved in the pathogenesis of metabolic and immune-mediated liver diseases.
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Su H, Liu J, Wu G, Long Z, Fan J, Xu Z, Liu J, Yu Z, Cao M, Liao N, Peng J, Yu W, Li W, Wu H, Wang X. Homeostasis of gut microbiota protects against polychlorinated biphenyl 126-induced metabolic dysfunction in liver of mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137597. [PMID: 32143051 DOI: 10.1016/j.scitotenv.2020.137597] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/23/2020] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
Polychlorinated biphenyls (PCBs) exposure is closely associated with the prevalence of metabolic diseases, including fatty liver and dyslipidemia. Emerging literature suggests that disturbance of gut microbiota is related to PCB126-induced metabolic disorders. However, the causal role of dysbiosis in PCB126-induced fatty liver is still unknown. To clarify the role of the gut microbiome in the detoxification of PCB126 in intestine or PCB126-induced toxicity in liver, mice were administrated with drinking water containing antibiotics (ampicillin, vancomycin, neomycin, and metronidazole) or Inulin. We showed that PCB126 resulted in significant hepatic lipid accumulation, inflammation, and fibrosis. PCB126, Antibiotics, and Inulin significantly affected the structure and shifted community membership of gut microbiome. 7 KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways at level 2 and 39 KEGG pathways at level 3 were significantly affected. Antibiotics alleviated PCB126-induced fibrosis in the liver but increased inflammation. Inulin treatment ameliorated both inflammation and fibrosis in the liver of PCB126-treated mice. Neither Antibiotics nor Inulin had significant effect on PCB126-induced hepatic steatosis. The more specific intervention of gut microbiota is needed to alleviate PCB126-induced fatty liver. These data demonstrate that homeostasis of gut microbiota is critical for the defense against PCB126 toxicity and dysbiosis plays a fundamental role in the development of inflammation and fibrosis in liver of PCB126-treated mice.
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Affiliation(s)
- Hongfei Su
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Jiangzheng Liu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Guangyuan Wu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Zi Long
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Junshu Fan
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Zhongrui Xu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Jiawei Liu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Zhongtian Yu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Meng Cao
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Nai Liao
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Jie Peng
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Weihua Yu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Wenli Li
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Hao Wu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China.
| | - Xin Wang
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China.
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47
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Arab JP, Arrese M, Shah VH. Gut microbiota in non-alcoholic fatty liver disease and alcohol-related liver disease: Current concepts and perspectives. Hepatol Res 2020; 50:407-418. [PMID: 31840358 PMCID: PMC7187400 DOI: 10.1111/hepr.13473] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/05/2020] [Accepted: 12/10/2020] [Indexed: 12/17/2022]
Abstract
The term, gut-liver axis, is used to highlight the close anatomical and functional relationship between the intestine and the liver. It has been increasingly recognized that the gut-liver axis plays an essential role in the development and progression of liver disease. In particular, in non-alcoholic fatty liver disease and alcohol-related liver disease, the two most common causes of chronic liver disease, a dysbiotic gut microbiota can influence intestinal permeability, allowing some pathogens or bacteria-derived factors from the gut reaching the liver through the enterohepatic circulation contributing to liver injury, steatohepatitis, and fibrosis progression. Pathways involved are multiple, including changes in bile acid metabolism, intestinal ethanol production, generation of short-chain fatty acids, and other by-products. Bile acids act through dedicated bile acid receptors, farnesoid X receptor and TGR5, in both the ileum and the liver, influencing lipid metabolism, inflammation, and fibrogenesis. Currently, both non-alcoholic fatty liver disease and alcohol-related liver disease lack effective therapies, and therapeutic targeting of gut microbiota and bile acids enterohepatic circulation holds promise. In this review, we summarize current knowledge about the role of gut microbiota in the pathogenesis of non-alcoholic fatty liver disease and alcohol-related liver disease, as well as the relevance of microbiota or bile acid-based approaches in the management of those liver diseases.
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Affiliation(s)
- Juan P. Arab
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA.,Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Marco Arrese
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile,Centro de Envejecimiento y Regeneración (CARE), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Vijay H. Shah
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
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48
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Abstract
Microbiome dysbiosis is strongly associated with alcoholic liver disease (ALD). Recent studies on comprehensive analyses of microbiome compositional and functional changes have begun to uncover the mechanistic relation between microbiome and the pathogenesis of ALD. Importantly, targeting the microbiome has become a potential strategy for the prevention and treatment of ALD. In this review, we summarize the clinical evidence of microbiome dysbiosis in ALD patients, and experimental advances in microbiome and metabolomic functional changes in animals with different species and genetic backgrounds in ALD. We also summarize the studies in humanized intestinal microbiome and fecal microbiota transplantation in mice. We introduce new developments in the studies on the role of the circulating bacterial microbiome, oral bacterial microbiome and fungal microbiome in the development of ALD. We highlight the potential mechanisms by which microbiome dysbiosis contributes to ALD, including short chain fatty acid changes, bile acid metabolism, intestinal barrier function, release of bacterial and fungal products, and inflammation. In addition, we summarize the recent developments targeting the microbiome in prevention and treatment of ALD, including dietary nutrient interference, herbal medicine, antibiotics, anti-fungal agents, probiotics, engineered bacterial therapy, fecal transplantation and oral hygiene. Although recent preclinical studies have advanced our understanding of the microbiome and ALD, clinical studies, especially prospective studies with large samples, are needed to better understand the cause-effect of microbiome dysbiosis in ALD. Identifying new precision-based strategies targeting the microbiome are expected to be developed as more effective therapies in ALD.
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49
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Fukui H. Role of Gut Dysbiosis in Liver Diseases: What Have We Learned So Far? Diseases 2019; 7:diseases7040058. [PMID: 31726747 PMCID: PMC6956030 DOI: 10.3390/diseases7040058] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 10/29/2019] [Accepted: 10/29/2019] [Indexed: 02/07/2023] Open
Abstract
Accumulating evidence supports that gut dysbiosis may relate to various liver diseases. Alcoholics with high intestinal permeability had a decrease in the abundance of Ruminnococcus. Intestinal dysmotility, increased gastric pH, and altered immune responses in addition to environmental and genetic factors are likely to cause alcohol-associated gut microbial changes. Alcohol-induced dysbiosis may be associated with gut barrier dysfunction, as microbiota and their products modulate barrier function by affecting epithelial pro-inflammatory responses and mucosal repair functions. High levels of plasma endotoxin are detected in alcoholics, in moderate fatty liver to advanced cirrhosis. Decreased abundance of Faecalibacterium prausnitzii, an anti-inflammatory commensal, stimulating IL-10 secretion and inhibiting IL-12 and interferon-γ expression. Proteobacteria, Enterobacteriaceae, and Escherichia were reported to be increased in NAFLD (nonalcoholic fatty liver disease) patients. Increased abundance of fecal Escherichia to elevated blood alcohol levels in these patients and gut microbiota enriched in alcohol-producing bacteria produce more alcohol (alcohol hypothesis). Some undetermined pathological sequences related to gut dysbiosis may facilitate energy-producing and proinflammatory conditions for the progression of NAFLD. A shortage of autochthonous non-pathogenic bacteria and an overgrowth of potentially pathogenic bacteria are common findings in cirrhotic patients. The ratio of the amounts of beneficial autochthonous taxa (Lachnospiraceae + Ruminococaceae + Veillonellaceae + Clostridiales Incertae Sedis XIV) to those of potentially pathogenic taxa (Enterobacteriaceae + Bacteroidaceae) was low in those with early death and organ failure. Cirrhotic patients with decreased microbial diversity before liver transplantation were more likely to develop post-transplant infections and cognitive impairment related to residual dysbiosis. Patients with PSC had marked reduction of bacterial diversity. Enterococcus and Lactobacillus were increased in PSC patients (without liver cirrhosis.) Treatment-naive PBC patients were associated with altered composition and function of gut microbiota, as well as a lower level of diversity. As serum anti-gp210 antibody has been considered as an index of disease progression, relatively lower species richness and lower abundance of Faecalibacterium spp. in gp210-positive patients are interesting. The dysbiosis-induced altered bacterial metabolites such as a hepatocarcinogenesis promotor DCA, together with a leaky gut and bacterial translocation. Gut protective Akkermansia and butyrate-producing genera were decreased, while genera producing-lipopolysaccharide were increased in early hepatocellular carcinoma (HCC) patients.
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Affiliation(s)
- Hiroshi Fukui
- Department of Gastroenterology, Nara Medical University, Kashihara 634-8522, Japan
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50
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Janulewicz PA, Seth RK, Carlson JM, Ajama J, Quinn E, Heeren T, Klimas N, Lasley SM, Horner RD, Sullivan K, Chatterjee S. The Gut-Microbiome in Gulf War Veterans: A Preliminary Report. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E3751. [PMID: 31590322 PMCID: PMC6801913 DOI: 10.3390/ijerph16193751] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 09/17/2019] [Accepted: 10/01/2019] [Indexed: 01/07/2023]
Abstract
Gulf War Illness (GWI) is a chronic multi-symptom disorder affecting the central nervous system (CNS), immune and gastrointestinal (GI) systems of Gulf War veterans (GWV). We assessed the relationships between GWI, GI symptoms, gut microbiome and inflammatory markers in GWV from the Boston Gulf War Illness Consortium (GWIC). Three groups of GWIC veterans were recruited in this pilot study; GWV without GWI and no gastrointestinal symptoms (controls), GWV with GWI and no gastrointestinal symptoms (GWI-GI), GWV with GWI who reported gastrointestinal symptoms (GW+GI). Here we report on a subset of the first thirteen stool samples analyzed. Results showed significantly different gut microbiome patterns among the three groups and within the GWI +/-GI groups. Specifically, GW controls had a greater abundance of firmicutes and the GWI+GI group had a greater abundance of the phyla bacteroidetes, actinobacteria, euryarchaeota, and proteobacteria as well as higher abundances of the families Bacteroidaceae, Erysipelotrichaceae, and Bifidobacteriaceae. The GWI+GI group also showed greater plasma levels of the inflammatory cytokine TNF-RI and they endorsed significantly more chemical weapons exposure during the war and reported significantly greater chronic pain, fatigue and sleep difficulties than the other groups. Studies with larger samples sizes are needed to confirm these initial findings.
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Affiliation(s)
- Patricia A Janulewicz
- Environmental Health Department, Boston University School of Public Health, Boston, MA 02118, USA.
| | - Ratanesh K Seth
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
| | - Jeffrey M Carlson
- Environmental Health Department, Boston University School of Public Health, Boston, MA 02118, USA
| | - Joy Ajama
- Environmental Health Department, Boston University School of Public Health, Boston, MA 02118, USA
| | - Emily Quinn
- Biostatistics and Epidemiology Data Analytics Center, Boston University School of Public Health, Boston, MA 02118, USA
| | - Timothy Heeren
- Biostatistics Department, Boston University School of Public Health, Boston, MA 02118, USA
| | - Nancy Klimas
- Department of Clinical Immunology, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, FL 33328, USA
| | - Steven M Lasley
- Department of Cancer Biology and Pharmacology, University of Illinois College of Medicine Peoria, Peoria, IL 61605, USA
| | - Ronnie D Horner
- Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
| | - Kimberly Sullivan
- Environmental Health Department, Boston University School of Public Health, Boston, MA 02118, USA
| | - Saurabh Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
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