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Cao S, Hu Y. Interpretable machine learning framework to predict gout associated with dietary fiber and triglyceride-glucose index. Nutr Metab (Lond) 2024; 21:25. [PMID: 38745171 PMCID: PMC11092237 DOI: 10.1186/s12986-024-00802-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 05/01/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Gout prediction is essential for the development of individualized prevention and treatment plans. Our objective was to develop an efficient and interpretable machine learning (ML) model using the SHapley Additive exPlanation (SHAP) to link dietary fiber and triglyceride-glucose (TyG) index to predict gout. METHODS Using datasets from the National Health and Nutrition Examination Survey (NHANES) (2005-2018) population to study dietary fiber, the TyG index was used to predict gout. After evaluating the performance of six ML models and selecting the Light Gradient Boosting Machine (LGBM) as the optimal algorithm, we interpret the LGBM model for predicting gout using SHAP and reveal the decision-making process of the model. RESULTS An initial survey of 70,190 participants was conducted, and after a gradual exclusion process, 12,645 cases were finally included in the study. Selection of the best performing LGBM model for prediction of gout associated with dietary fiber and TyG index (Area under the ROC curve (AUC): 0.823, 95% confidence interval (CI): 0.798-0.848, Accuracy: 95.3%, Brier score: 0.077). The feature importance of SHAP values indicated that age was the most important feature affecting the model output, followed by uric acid (UA). The SHAP values showed that lower dietary fiber values had a more pronounced effect on the positive prediction of the model, while higher values of the TyG index had a more pronounced effect on the positive prediction of the model. CONCLUSION The interpretable LGBM model associated with dietary fiber and TyG index showed high accuracy, efficiency, and robustness in predicting gout. Increasing dietary fiber intake and lowering the TyG index are beneficial in reducing the potential risk of gout.
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Affiliation(s)
- Shunshun Cao
- Pediatric Endocrinology, Genetics and Metabolism, The Second Affiliated Hospital, Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Yangyang Hu
- Reproductive Medicine Center, Obstetrics and Gynecology, The Second Affiliated Hospital, Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
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2
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Tang C, Li L, Jin X, Wang J, Zou D, Hou Y, Yu X, Wang Z, Jiang H. Investigating the Impact of Gut Microbiota on Gout Through Mendelian Randomization. Orthop Res Rev 2024; 16:125-136. [PMID: 38766545 PMCID: PMC11100514 DOI: 10.2147/orr.s454211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 05/07/2024] [Indexed: 05/22/2024] Open
Abstract
Background The relationship between gout and gut microbiota has attracted significant attention in current research. However, due to the diverse range of gut microbiota, the specific causal effect on gout remains unclear. This study utilizes Mendelian randomization (MR) to investigate the causal relationship between gut microbiota and gout, aiming to elucidate the underlying mechanism of microbiome-mediated gout and provide valuable guidance for clinical prevention and treatment. Materials and Methods The largest genome-wide association study meta-analysis conducted by the MiBioGen Consortium (n=18,340) was utilized to perform a two-sample Mendelian randomization investigation on aggregate statistics of intestinal microbiota. Summary statistics for gout were utilized from the data released by EBI. Various methods, including inverse variance weighted, weighted median, weighted model, MR-Egger, and Simple-mode, were employed to assess the causal relationship between gut microbiota and gout. Reverse Mendelian randomization analysis revealed a causal association between bacteria and gout in forward Mendelian randomization analysis. Cochran's Q statistic was used to quantify instrumental variable heterogeneity. Results The inverse variance weighted estimation revealed that Rikenellaceae exhibited a slight protective effect on gout, while the presence of Ruminococcaceae UCG_011 is associated with a marginal increase in the risk of gout. According to the reverse Mendelian Randomization results, no significant causal relationship between gout and gut microbiota was observed. No significant heterogeneity of instrumental variables or level pleiotropy was detected. Conclusion Our MR analysis revealed a potential causal relationship between the development of gout and specific gut microbiota; however, the causal effect was not robust, and further research is warranted to elucidate its underlying mechanism in gout development. Considering the significant association between diet, gut microbiota, and gout, these findings undoubtedly shed light on the mechanisms of microbiota-mediated gout and provide new insights for translational research on managing and standardizing treatment for this condition.
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Affiliation(s)
- Chaoqun Tang
- The First Clinical Medical School, Anhui University of Chinese Medicine, Hefei, Anhui, People’s Republic of China
| | - Lei Li
- Department of Orthopedics, Shandong Wendeng Osteopathic Hospital, Wendeng, Weihai, Shandong, People’s Republic of China
| | - Xin Jin
- Department of Orthopedics, Shandong Wendeng Osteopathic Hospital, Wendeng, Weihai, Shandong, People’s Republic of China
| | - Jinfeng Wang
- Department of Orthopedics, Shandong Wendeng Osteopathic Hospital, Wendeng, Weihai, Shandong, People’s Republic of China
| | - Debao Zou
- Department of Orthopedics, Shandong Wendeng Osteopathic Hospital, Wendeng, Weihai, Shandong, People’s Republic of China
| | - Yan Hou
- Department of Orthopedics, Shandong Wendeng Osteopathic Hospital, Wendeng, Weihai, Shandong, People’s Republic of China
| | - Xin Yu
- Department of Orthopedics, Shandong Wendeng Osteopathic Hospital, Wendeng, Weihai, Shandong, People’s Republic of China
| | - Zhizhou Wang
- Department of Orthopedics, Shandong Wendeng Osteopathic Hospital, Wendeng, Weihai, Shandong, People’s Republic of China
| | - Hongjiang Jiang
- The First Clinical Medical School, Anhui University of Chinese Medicine, Hefei, Anhui, People’s Republic of China
- Department of Orthopedics, Shandong Wendeng Osteopathic Hospital, Wendeng, Weihai, Shandong, People’s Republic of China
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Feng ZP, Wang XY, Xin HY, Huang SL, Huang HY, Xin Q, Zhang XH, Xin HW. Gut microbiota plays a significant role in gout. J Med Microbiol 2024; 73. [PMID: 38629677 DOI: 10.1099/jmm.0.001824] [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] [Indexed: 04/19/2024] Open
Abstract
With the development of social economy, the incidence of gout is increasing, which is closely related to people's increasingly rich diet. Eating a diet high in purine, fat, sugar and low-fibre for a long time further aggravates gout by affecting uric acid metabolism. The renal metabolism mechanism of uric acid has been thoroughly studied. To find a new treatment method for gout, increasing studies have recently been conducted on the mechanism of intestinal excretion, metabolism and absorption of uric acid. The most important research is the relationship between intestinal microbiota and the risk of gout. Gut microbiota represent bacteria that reside in a host's gastrointestinal tract. The composition of the gut microbiota is associated with protection against pathogen colonization and disease occurrence. This review focuses on how gut microbiota affects gout through uric acid and discusses the types of bacteria that may be involved in the occurrence and progression of gout. We also describe potential therapy for gout by restoring gut microbiota homeostasis and reducing uric acid levels. We hold the perspective that changing intestinal microbiota may become a vital method for effectively preventing or treating gout.
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Affiliation(s)
- Zhi-Peng Feng
- Key Laboratory of Research on Human Genetic Diseases Research at Universities of Inner Mongolia Autonomous Region, School of Basic Medicine, Chifeng University, Chifeng, Inner Mongolian Autonomous Region 024000, PR China
- Department of Gastroenterology, Yueyang Hospital Affiliated to Hunan Normal University, Yueyang, Hunan 414000, PR China
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, PR China
| | - Xiao-Yan Wang
- The Doctoral Scientific Research Center, People's Hospital of Lianjiang, Guangdong 524400, PR China
- The Doctoral Scientific Research Center, People's Hospital of Lianjiang, Guangdong Medical University, Guangdong 524400, PR China
| | - Hong-Yi Xin
- The Doctoral Scientific Research Center, People's Hospital of Lianjiang, Guangdong 524400, PR China
- The Doctoral Scientific Research Center, People's Hospital of Lianjiang, Guangdong Medical University, Guangdong 524400, PR China
| | - Shao-Li Huang
- Clinical Laboratory, People's Hospital of Lianjiang, Guangdong 524400, PR China
| | - Hong-Yu Huang
- Department of Surgery, People's Hospital of Lianjiang, Guangdong 524400, PR China
| | - Qiang Xin
- Graduate School, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010050, PR China
- Department of Internal Medicine, Ulanqab General Hospital of Traditional Chinese Medicine and Mongolian Medicine, Hugeji Street South, Industry and Agriculture Street West, Jining New District, Ulanqab, Inner Mongolia 012000, PR China
| | - Xi-He Zhang
- The Doctoral Scientific Research Center, People's Hospital of Lianjiang, Guangdong 524400, PR China
- The Doctoral Scientific Research Center, People's Hospital of Lianjiang, Guangdong Medical University, Guangdong 524400, PR China
| | - Hong-Wu Xin
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, 1 Nanhuan Road, Jingzhou, Hubei 434023, PR China
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Wang L, Ye J. Commentary: Gut microbiota reduce the risk of hyperuricemia and gout in the human body. Acta Pharm Sin B 2024; 14:433-435. [PMID: 38261824 PMCID: PMC10793086 DOI: 10.1016/j.apsb.2023.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/23/2023] [Accepted: 11/03/2023] [Indexed: 01/25/2024] Open
Affiliation(s)
- Lin Wang
- Metabolic Disease Research Center, Zhengzhou University Affiliated Zhengzhou Central Hospital, Zhengzhou 450007, China
| | - Jianping Ye
- Metabolic Disease Research Center, Zhengzhou University Affiliated Zhengzhou Central Hospital, Zhengzhou 450007, China
- Research Center for Basic Medicine, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
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5
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Yan Q, Jia S, Li D, Yang J. The role and mechanism of action of microbiota-derived short-chain fatty acids in neutrophils: From the activation to becoming potential biomarkers. Biomed Pharmacother 2023; 169:115821. [PMID: 37952355 DOI: 10.1016/j.biopha.2023.115821] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/27/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023] Open
Abstract
Short-chain fatty acids (SCFAs), such as acetate, propionate, and butyrate, have emerged as critical mediators in the communication between the human microbiota and its host. As the first responder to the inflammatory site, neutrophils play an important role in protecting the host against bacterial infections. Recent investigations revealed that SCFAs generated from microbiota influence various neutrophil activities, including activation, migration, and generation of mediators of inflammatory processes. SCFAs have also been demonstrated to exhibit potential therapeutic benefits in a variety of disorders related to neutrophil dysfunction, including inflammatory bowel disease, viral infectious disorders, and cancer. This study aims to examine the molecular processes behind the complicated link between SCFAs and neutrophils, as well as their influence on neutrophil-driven inflammatory disorders. In addition, we will also provide an in-depth review of current research on the diagnostic and therapeutic value of SCFAs as possible biomarkers for neutrophil-related diseases.
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Affiliation(s)
- Qingzhu Yan
- Department of Ultrasound Medicine, the Second Hospital of Jilin University, Changchun 130000, China
| | - Shengnan Jia
- Digestive Diseases Center, Department of Hepatopancreatobiliary Medicine, the Second Hospital of Jilin University, Changchun 130000, China
| | - Dongfu Li
- Digestive Diseases Center, Department of Hepatopancreatobiliary Medicine, the Second Hospital of Jilin University, Changchun 130000, China.
| | - Junling Yang
- Department of Respiratory Medicine, the Second Hospital of Jilin University, Changchun 130000, China.
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6
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Zhang Y, Song J, Lai Y, Li A, Zhang Y, Zhou H, Zhao W, Zong Z, Wu R, Li H. Association between the dietary inflammatory index and gout in the National Health and Nutrition Examination Survey 2007-2018. Heliyon 2023; 9:e22930. [PMID: 38058438 PMCID: PMC10696178 DOI: 10.1016/j.heliyon.2023.e22930] [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: 04/30/2023] [Revised: 11/19/2023] [Accepted: 11/22/2023] [Indexed: 12/08/2023] Open
Abstract
Objective The aim of our study was to investigate whether the Dietary Inflammatory Index (DII) correlated with gout in American adults. Method The study used data from the 2007-2018 National Health and Nutrition Examination Survey, with 27,710 adults participating. Initially, multivariable analysis was performed, with controls for covariates, to assess the link of DII and gout. Then, restricted cubic splines (RCS) were applied to model the nonlinear relationship of DII and gout. Furthermore, propensity score matching (PSM) as a further study of potential relationships was established. Eventually, subgroup analysis was performed. Result Participants within the highest DII quartile would be more susceptible to increased risk of gout in the univariate regression model (Q4 vs. Q1, OR = 1.31, CI: 1.05-1.63). Additionally, a positive correlation was detected between gout risk and DII after adjusting on drinking, smoking, gender, race, age, and BMI. Based on RCS analysis, we observed that the risk of gout raised sharply as DII values increased, then flattened, and increased sharply again when the DII was greater than approximately 2.5. After performing the PSM, it was observed that DII correlated in a positive way to the presence of gout on a fully adjusted multivariable model. Subgroup analysis revealed that the link of DII and gout showed no statistical significance in females, blacks, Mexicans, nor in the population that smoked. Conclusion Greater degrees of pro-inflammation correlate with a higher risk of gout and might be a predisposing factor for gout. Hence, tactics fostering an anti-inflammatory diet for preventing and improving gout in adults should be regarded.
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Affiliation(s)
- Yujun Zhang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, 330006, Nanchang, China
- Nanchang University, 330006, Nanchang, China
| | - Jingjing Song
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, 330006, Nanchang, China
- Nanchang University, 330006, Nanchang, China
| | - Yizhong Lai
- Nanchang University, 330006, Nanchang, China
| | - Ao Li
- Queen Mary School, Nanchang University, 330006, Nanchang, China
| | - Yiwei Zhang
- Queen Mary School, Nanchang University, 330006, Nanchang, China
| | - Haonan Zhou
- Queen Mary School, Nanchang University, 330006, Nanchang, China
| | - Wentao Zhao
- The 3rd Clinical Department of China Medical University, 10159, Shenyang, China
| | - Zhen Zong
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, 1 MinDe Road, 330006, Nanchang, China
| | - Rui Wu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, 330006, Nanchang, China
| | - Hui Li
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, 330006, Nanchang, China
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7
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Alamdari-Palangi V, Jaberi KR, Shahverdi M, Naeimzadeh Y, Tajbakhsh A, Khajeh S, Razban V, Fallahi J. Recent advances and applications of peptide-agent conjugates for targeting tumor cells. J Cancer Res Clin Oncol 2023; 149:15249-15273. [PMID: 37581648 DOI: 10.1007/s00432-023-05144-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/08/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND Cancer, being a complex disease, presents a major challenge for the scientific and medical communities. Peptide therapeutics have played a significant role in different medical practices, including cancer treatment. METHOD This review provides an overview of the current situation and potential development prospects of anticancer peptides (ACPs), with a particular focus on peptide vaccines and peptide-drug conjugates for cancer treatment. RESULTS ACPs can be used directly as cytotoxic agents (molecularly targeted peptides) or can act as carriers (guiding missile) of chemotherapeutic agents and radionuclides by specifically targeting cancer cells. More than 60 natural and synthetic cationic peptides are approved in the USA and other major markets for the treatment of cancer and other diseases. Compared to traditional cancer treatments, peptides exhibit anticancer activity with high specificity and the ability to rapidly kill target cancer cells. ACP's target and kill cancer cells via different mechanisms, including membrane disruption, pore formation, induction of apoptosis, necrosis, autophagy, and regulation of the immune system. Modified peptides have been developed as carriers for drugs, vaccines, and peptide-drug conjugates, which have been evaluated in various phases of clinical trials for the treatment of different types of solid and leukemia cancer. CONCLUSIONS This review highlights the potential of ACPs as a promising therapeutic option for cancer treatment, particularly through the use of peptide vaccines and peptide-drug conjugates. Despite the limitations of peptides, such as poor metabolic stability and low bioavailability, modified peptides show promise in addressing these challenges. Various mechanism of action of anticancer peptides. Modes of action against cancer cells including: inducing apoptosis by cytochrome c release, direct cell membrane lysis (necrosis), inhibiting angiogenesis, inducing autophagy-mediated cell death and immune cell regulation.
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Affiliation(s)
- Vahab Alamdari-Palangi
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 7133654361, Iran
| | - Khojaste Rahimi Jaberi
- Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahshid Shahverdi
- Medical Biotechnology Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Yasaman Naeimzadeh
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 7133654361, Iran
| | - Amir Tajbakhsh
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 7133654361, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sahar Khajeh
- Bone and Joint Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vahid Razban
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 7133654361, Iran.
| | - Jafar Fallahi
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 7133654361, Iran.
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8
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Chen Y, Liu J, Li Y, Cong C, Hu Y, Zhang X, Han Q. The Independent Value of Neutrophil to Lymphocyte Ratio in Gouty Arthritis: A Narrative Review. J Inflamm Res 2023; 16:4593-4601. [PMID: 37868831 PMCID: PMC10588658 DOI: 10.2147/jir.s430831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 10/09/2023] [Indexed: 10/24/2023] Open
Abstract
Since the incidence of gouty arthritis (GA) exhibits yearly increases, accurate assessment and early treatment have significant values for improving disease conditions and monitoring prognosis. Neutrophil to lymphocyte ratio (NLR) is a common indicator in blood routine, which has the characteristics of easy access and low cost. In recent years, NLR has been proven to be an effective indicator for guiding the diagnosis, treatment, and prognosis of various diseases. Moreover, NLR has varying degrees of relationship with various inflammatory biomarkers, which can affect and reflect the inflammatory response in the body. This paper reviews the independent value of NLR for GA and its underlying molecular pathological mechanisms, intending to contribute to the further application of NLR.
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Affiliation(s)
- Yiming Chen
- Department of Rheumatology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, People’s Republic of China
- Anhui Key Laboratory of Application and Development of Internal medicine of Modern Chinese Medicine, Anhui University of Chinese Medicine, Hefei, Anhui Province, People’s Republic of China
| | - Jian Liu
- Department of Rheumatology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, People’s Republic of China
- Anhui Key Laboratory of Application and Development of Internal medicine of Modern Chinese Medicine, Anhui University of Chinese Medicine, Hefei, Anhui Province, People’s Republic of China
- National Traditional Chinese Medicine Inheritance and Innovation Center, Hefei, Anhui Province, People’s Republic of China
| | - Yang Li
- Department of Rheumatology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, People’s Republic of China
| | - Chengzhi Cong
- Department of Rheumatology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, People’s Republic of China
| | - Yuedi Hu
- Department of Rheumatology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, People’s Republic of China
| | - Xianheng Zhang
- Department of Rheumatology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, People’s Republic of China
| | - Qi Han
- Department of Rheumatology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, People’s Republic of China
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Dang K, Zhang N, Gao H, Wang G, Liang H, Xue M. Influence of intestinal microecology in the development of gout or hyperuricemia and the potential therapeutic targets. Int J Rheum Dis 2023; 26:1911-1922. [PMID: 37606177 DOI: 10.1111/1756-185x.14888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/23/2023]
Abstract
Gout and hyperuricemia are common metabolic diseases. Patients with purine metabolism disorder and/or decreased uric acid excretion showed increased uric acid levels in the blood. The increase of uric acid in the blood leads to the deposition of urate crystals in tissues, joints, and kidneys, and causes gout. Recent studies have revealed that imbalance of the intestinal microecology is closely related to the occurrence and development of hyperuricemia and gout. Disorder of the intestinal flora often occurs in patients with gout, and high purine and high fructose may induce the disorder of intestinal flora. Short-chain fatty acids and endotoxins produced by intestinal bacteria are closely related to the inflammatory response of gout. This article summarizes the characteristics of intestinal microecology in patients or animal models with hyperuricemia or gout, and explores the relationship between intestinal microecology and gout or hyperuricemia from the aspect of the intestinal barrier, intestinal microorganisms, intestinal metabolites, and intestinal immune system. We also review the current status of hyperuricemia treatment by targeting intestinal microecology.
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Affiliation(s)
- Kai Dang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Nan Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Haiqi Gao
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Guifa Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Hui Liang
- Department of Human Nutrition, College of Public Health, Qingdao University, Qingdao, China
| | - Meilan Xue
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Qingdao University, Qingdao, China
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Ayakdaş G, Ağagündüz D. Microbiota-accessible carbohydrates (MACs) as novel gut microbiome modulators in noncommunicable diseases. Heliyon 2023; 9:e19888. [PMID: 37809641 PMCID: PMC10559293 DOI: 10.1016/j.heliyon.2023.e19888] [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: 05/16/2023] [Revised: 09/01/2023] [Accepted: 09/05/2023] [Indexed: 10/10/2023] Open
Abstract
The gut microbiota has a significant role in human health and is affected by many factors. Diet and dietary components have profound impacts on the composition of the gut microbiome and largely contribute to the change in bacterial flora. A high-fiber diet increased dietary fiber (DF) fermentation and the production of short-chain fatty acids (SCFAs), which increased the number of microorganisms. Microbiota-accessible carbohydrates (MACs), a subgroup of fermentable carbohydrates such as DF, are defined as indigestible carbohydrates metabolized by microbes. These carbohydrates are important components to sustain the microbial environment of the complicated digestive tract and avoid intestinal dysbiosis. Each MAC has a unique property and can therefore be used as a sensitive output microbiota modulator to support host homeostasis and modulate health. In addition to the overall health-developing effects, MACs are thought to have a promising effect on the prevention of non-communicable diseases (NCDs), which are major health problems worldwide. The aim of the manuscript was to describe microbiota-accessible carbohydrates and summarize their effects on gut modulation and NCDs.
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Affiliation(s)
- Gamze Ayakdaş
- Department of Nutrition and Dietetics, Acıbadem University, Kerem Aydınlar Campus, Ataşehir, İstanbul, 34755, Turkey
| | - Duygu Ağagündüz
- Department of Nutrition and Dietetics, Gazi University, Emek, Ankara, 06490, Turkey
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Canesso MCC, Cassini-Vieira P, Moreira CF, Luong S, Rachid MA, Martins FS, Teixeira MM, Vieira AT, Mackay CR, Barcelos LS. Dietary Fiber Improves Skin Wound Healing and Scar Formation through the Metabolite-Sensing Receptor GPR43. J Invest Dermatol 2023; 143:1850-1854.e6. [PMID: 36965576 DOI: 10.1016/j.jid.2022.07.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 06/17/2022] [Accepted: 07/01/2022] [Indexed: 03/27/2023]
Affiliation(s)
- Maria Cecilia Campos Canesso
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Puebla Cassini-Vieira
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Camila Francisco Moreira
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Suzanne Luong
- Department of Microbiology, Monash Biomedicine Discovery Institute, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Australia
| | - Milene Alvarenga Rachid
- Department of Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Flaviano Santos Martins
- Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Mauro Martins Teixeira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Angelica Thomas Vieira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Charles Reay Mackay
- Department of Microbiology, Monash Biomedicine Discovery Institute, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Australia
| | - Luciola Silva Barcelos
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.
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Zhao XN, Liu SX, Wang ZZ, Zhang S, You LL. Roxadustat alleviates the inflammatory status in patients receiving maintenance hemodialysis with erythropoiesis-stimulating agent resistance by increasing the short-chain fatty acids producing gut bacteria. Eur J Med Res 2023; 28:230. [PMID: 37430374 DOI: 10.1186/s40001-023-01179-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 06/20/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Hypoxia-inducible factor-prolyl hydroxylase inhibitors (HIF-PHIs) have improved the treatment of renal anemia, especially in patients resistant to erythropoiesis-stimulating agents (ESAs). HIF facilitates maintain gut microbiota homeostasis, which plays an important role in inflammation and iron metabolism, which are in turn key factors affecting ESA resistance. The current study aimed to investigate the effects of roxadustat on inflammation and iron metabolism and on the gut microbiota in patients with ESA resistance. METHODS We conducted a self-controlled, single-center study including 30 patients with ESA resistance undergoing maintenance hemodialysis. All patients received roxadustat without iron agents for renal anemia. Hemoglobin and inflammatory factors were monitored. Fecal samples were collected before and after 3 months' administration and the gut microbiota were analyzed by 16S ribosomal RNA gene sequencing. RESULTS Hemoglobin levels increased after treatment with roxadustat for 3 months (P < 0.05). Gut microbiota diversity and abundance also changed, with increases in short-chain fatty acid (SCFA)-producing bacteria (Acidaminococcaceae, Butyricicoccus, Ruminococcus bicirculans, Ruminococcus bromii, Bifidobacterium dentium, Eubacterium hallii) (P < 0.05). Serum SCFA levels also increased (P < 0.05). Inflammatory factors, including interleukin (IL)-1, IL-6, tumor necrosis factor (TNF)-α, interferon-γ, and endotoxin gradually decreased (P < 0.05). Serum hepcidin, ferritin, and total and unsaturated iron-binding capacities decreased (P < 0.05), while soluble transferrin receptor levels increased at each time point (P < 0.05). There were no significant differences in serum iron and transferrin saturation at each time point. The abundance of Alistipes shahii was significantly negatively correlated with IL-6 and TNF-α (P < 0.05). CONCLUSIONS Roxadustat alleviated renal anemia in patients with ESA resistance by decreasing inflammatory factors and hepcidin levels and improving iron utilization. These effects were at least partly mediated by improved diversity and abundance of SCFA-producing gut bacteria, probably via activation of HIF.
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Affiliation(s)
- Xiu-Nan Zhao
- Department of Nephrology, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, 116033, Liaoning, China
- Dalian Key Laboratory of Intelligent Blood Purification, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, 116033, Liaoning, China
| | - Shu-Xin Liu
- Department of Nephrology, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, 116033, Liaoning, China.
- Dalian Key Laboratory of Intelligent Blood Purification, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, 116033, Liaoning, China.
- School of Clinical Medicine, Faculty of Medicine, Dalian University of Technology, No. 2, Linggong Road, Dalian, 116024, Liaoning, China.
| | - Zhen-Zhen Wang
- Department of Nephrology, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, 116033, Liaoning, China
- Dalian Key Laboratory of Intelligent Blood Purification, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, 116033, Liaoning, China
| | - Shuang Zhang
- Department of Nephrology, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, 116033, Liaoning, China
- Dalian Key Laboratory of Intelligent Blood Purification, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, 116033, Liaoning, China
| | - Lian-Lian You
- Department of Nephrology, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, 116033, Liaoning, China
- Dalian Key Laboratory of Intelligent Blood Purification, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, 116033, Liaoning, China
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13
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Devi MB, Sarma HK, Mukherjee AK, Khan MR. Mechanistic Insights into Immune-Microbiota Interactions and Preventive Role of Probiotics Against Autoimmune Diabetes Mellitus. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10087-1. [PMID: 37171690 DOI: 10.1007/s12602-023-10087-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2023] [Indexed: 05/13/2023]
Abstract
Recent studies on genetically susceptible individuals and animal models revealed the potential role of the intestinal microbiota in the pathogenesis of type 1 diabetes (T1D) through complex interactions with the immune system. T1D incidence has been increasing exponentially with modern lifestyle altering normal microbiota composition, causing dysbiosis characterized by an imbalance in the gut microbial community. Dysbiosis has been suggested to be a potential contributing factor in T1D. Moreover, several studies have shown the potential role of probiotics in regulating T1D through various mechanisms. Current T1D therapies target curative measures; however, preventive therapeutics are yet to be proven. This review highlights immune microbiota interaction and the immense role of probiotics and postbiotics as important immunological interventions for reducing the risk of T1D.
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Affiliation(s)
- M Bidyarani Devi
- Molecular Biology and Microbial Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, India
- Department of Biotechnology, Gauhati University, Guwahati, Assam, India
| | | | - Ashis K Mukherjee
- Molecular Biology and Microbial Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, India
| | - Mojibur R Khan
- Molecular Biology and Microbial Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, India.
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14
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Malairaj S, Veeraperumal S, Yao W, Subramanian M, Tan K, Zhong S, Cheong KL. Porphyran from Porphyra haitanensis Enhances Intestinal Barrier Function and Regulates Gut Microbiota Composition. Mar Drugs 2023; 21:md21050265. [PMID: 37233459 DOI: 10.3390/md21050265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/21/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
In this study, the effects of a homogenous porphyran from Porphyra haitanensis (PHP) on the intestinal barrier and gut microbiota were investigated. The results showed that oral administration of PHP resulted in a higher luminal moisture content and a lower pH environment for the growth of beneficial bacteria in the colon of mice. PHP significantly increased the production of total short-chain fatty acids during the fermentation process. PHP made the intestinal epithelial cells of mice arrange more tidily and tightly with a significant increase in mucosal thickness. PHP also increased the amount of mucin-producing goblet cells and the expression of mucin in the colon, which maintained the structure and function of the intestinal mucosal barrier. Moreover, PHP up-regulated the expression of tight junctions including ZO-1 and occludin, improving the intestinal physical barrier function. The results of 16S rRNA sequencing showed that PHP regulated the composition of gut microbiota in mice, increasing the richness and diversity of gut microbiota and the ratio of Firmicutes to Bacteroidetes. This study revealed that the intake of PHP is beneficial for the gastrointestinal tract and PHP could be a potential source of prebiotics in the functional food and pharmaceutical industries.
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Affiliation(s)
- Sathuvan Malairaj
- Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
| | - Suresh Veeraperumal
- Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Wanzi Yao
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Mugesh Subramanian
- Research and Development Center, Genexia Bioserv, Chennai 600045, Tamilnadu, India
| | - Karsoon Tan
- Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf University, Qinzhou 535011, China
| | - Saiyi Zhong
- Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Kit-Leong Cheong
- Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
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15
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Tao H, Mo Y, Liu W, Wang H. A review on gout: Looking back and looking ahead. Int Immunopharmacol 2023; 117:109977. [PMID: 37012869 DOI: 10.1016/j.intimp.2023.109977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/11/2023] [Accepted: 02/28/2023] [Indexed: 03/17/2023]
Abstract
Gout is a metabolic disease caused by the deposition of monosodium urate (MSU) crystals inside joints, which leads to inflammation and tissue damage. Increased concentration of serum urate is an essential step in the development of gout. Serum urate is regulated by urate transporters in the kidney and intestine, especially GLUT9 (SLC2A9), URAT1 (SLC22A12) and ABCG. Activation of NLRP3 inflammasome bodies and subsequent release of IL-1β by monosodium urate crystals induce the crescendo of acute gouty arthritis, while neutrophil extracellular traps (NETs) are considered to drive the self-resolving of gout within a few days. If untreated, acute gout may eventually develop into chronic tophaceous gout characterized by tophi, chronic gouty synovitis, and structural joint damage, leading the crushing burden of treatment. Although the research on the pathological mechanism of gout has been gradually deepened in recent years, many clinical manifestations of gout are still unable to be fully elucidated. Here, we reviewed the molecular pathological mechanism behind various clinical manifestations of gout, with a view to making contributions to further understanding and treatment.
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16
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Modulation of the Tumor Microenvironment by Microbiota-Derived Short-Chain Fatty Acids: Impact in Colorectal Cancer Therapy. Int J Mol Sci 2023; 24:ijms24065069. [PMID: 36982144 PMCID: PMC10048801 DOI: 10.3390/ijms24065069] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/24/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
Finding new therapeutic approaches towards colorectal cancer (CRC) is of increased relevance, as CRC is one of the most common cancers worldwide. CRC standard therapy includes surgery, chemotherapy, and radiotherapy, which may be used alone or in combination. The reported side effects and acquired resistance associated with these strategies lead to an increasing need to search for new therapies with better efficacy and less toxicity. Several studies have demonstrated the antitumorigenic properties of microbiota-derived short-chain fatty acids (SCFAs). The tumor microenvironment is composed by non-cellular components, microbiota, and a great diversity of cells, such as immune cells. The influence of SCFAs on the different constituents of the tumor microenvironment is an important issue that should be taken into consideration, and to the best of our knowledge there is a lack of reviews on this subject. The tumor microenvironment is not only closely related to the growth and development of CRC but also affects the treatment and prognosis of the patients. Immunotherapy has emerged as a new hope, but, in CRC, it was found that only a small percentage of patients benefit from this treatment being closely dependent on the genetic background of the tumors. The aim of this review was to perform an up-to-date critical literature review on current knowledge regarding the effects of microbiota-derived SCFAs in the tumor microenvironment, particularly in the context of CRC and its impact in CRC therapeutic strategies. SCFAs, namely acetate, butyrate, and propionate, have the ability to modulate the tumor microenvironment in distinct ways. SCFAs promote immune cell differentiation, downregulate the expression of pro-inflammatory mediators, and restrict the tumor-induced angiogenesis. SCFAs also sustain the integrity of basement membranes and modulate the intestinal pH. CRC patients have lower concentrations of SCFAs than healthy individuals. Increasing the production of SCFAs through the manipulation of the gut microbiota could constitute an important therapeutic strategy towards CRC due to their antitumorigenic effect and ability of modulating tumor microenvironment.
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17
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Orji OC, López-Domínguez MB, Sandoval-Plata G, Guetta-Baranes T, Valdes AM, Doherty M, Morgan K, Abhishek A. Upregulated expression of FFAR2 and SOC3 genes is associated with gout. Rheumatology (Oxford) 2023; 62:977-983. [PMID: 35731142 PMCID: PMC9891400 DOI: 10.1093/rheumatology/keac360] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 06/14/2022] [Accepted: 06/14/2022] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE To examine the expression of Free fatty acid receptor 2 (FFAR2) and Suppressor of cytokine signalling 3 (SOCS3) genes in asymptomatic hyperuricaemia (AH), AH with MSU crystal deposition, inter-critical gout and gout flare. METHODS Study participants (n = 120) comprised 34 people with serum urate (SU) <360 μmol/l, 69 with AH ± MSU crystal deposition and 17 with a gout flare. Sixteen of the 17 patients with a gout flare attended a second visit 6-12 weeks later. Gene expression levels were assessed using RT-qPCR and results computed as fold changes (FC) after normalization to the reference gene. RESULTS FFAR2 was significantly upregulated during gout flares (FC = 2.9) compared with normal SU, AH, and AH + MSU crystal deposition (FC = 1.1, P < 0.0001 for each comparison). FFAR2 was also significantly upregulated during inter-critical gout (FC = 1.8) compared with normal SU, AH and AH + MSU (FC = 1.1, P < 0.001 for each comparison). SOCS3 was significantly upregulated during gout flares (FC = 3.4) compared with normal SU, AH, and AH + MSU crystal deposition (FC = 1.1, 1.1 and 1.2, respectively, P < 0.0001 for each comparison). SOCS3 was also upregulated during inter-critical gout (FC = 2.1) compared with normal SU (P = 0.02) and AH (P = 0.006) (FC = 1.1 and 1.2, respectively). FFAR2 expression was upregulated during gout flare compared with inter-critical gout and SOCS3 expression showed negative correlation with flare duration (r = -0.49, P < 0.05). CONCLUSION FFAR2 upregulation is associated with gout and may trigger gout flares. SOCS3 may have a role in amelioration of gout flares.
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Affiliation(s)
- Oliver C Orji
- Human Genetics, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK.,Department of Medical Laboratory Sciences, College of Medicine, University of Nigeria, Enugu Campus, Enugu, Nigeria
| | - Maria B López-Domínguez
- Human Genetics, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Gabriela Sandoval-Plata
- Human Genetics, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK.,Academic Rheumatology, School of Medicine, Nottingham City Hospital, University of Nottingham
| | - Tamar Guetta-Baranes
- Human Genetics, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Ana M Valdes
- Academic Rheumatology, School of Medicine, Nottingham City Hospital, University of Nottingham.,Nottingham NIHR BRC, Nottingham, UK
| | - Michael Doherty
- Academic Rheumatology, School of Medicine, Nottingham City Hospital, University of Nottingham
| | - Kevin Morgan
- Human Genetics, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Abhishek Abhishek
- Academic Rheumatology, School of Medicine, Nottingham City Hospital, University of Nottingham.,Nottingham NIHR BRC, Nottingham, UK
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18
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McKay I, van Dorst J, Katz T, Doumit M, Prentice B, Owens L, Belessis Y, Chuang S, Jaffe A, Thomas T, Coffey M, Ooi CY. Diet and the gut-lung axis in cystic fibrosis - direct & indirect links. Gut Microbes 2023; 15:2156254. [PMID: 36573804 PMCID: PMC9809969 DOI: 10.1080/19490976.2022.2156254] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Cystic fibrosis (CF) is a multisystem, autosomal, recessive disease primarily affecting the lungs, pancreas, gastrointestinal tract, and liver. Whilst there is increasing evidence of a microbial 'gut-lung axis' in chronic respiratory conditions, there has been limited analysis of such a concept in CF. We performed a comprehensive dietary and microbiota analysis to explore the interactions between diet, gastrointestinal microbiota, respiratory microbiota, and clinical outcomes in children with CF. Our results demonstrate significant alterations in intestinal inflammation and respiratory and gastrointestinal microbiota when compared to age and gender matched children without CF. We identified correlations between the gastrointestinal and respiratory microbiota, lung function, CF pulmonary exacerbations and anthropometrics, supporting the concept of an altered gut-lung axis in children with CF. We also identified significant differences in dietary quality with CF children consuming greater relative proportions of total, saturated and trans fats, and less relative proportions of carbohydrates, wholegrains, fiber, insoluble fiber, starch, and resistant starch. Our findings position the CF diet as a potential modulator in gastrointestinal inflammation and the proposed gut-lung axial relationship in CF. The dietary intake of wholegrains, fiber and resistant starch may be protective against intestinal inflammation and should be explored as potential therapeutic adjuvants for children with CF.
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Affiliation(s)
- Isabelle McKay
- School of Clinical Medicine, Discipline of Paediatrics and Child Health, UNSW Medicine and Health, Univeristy of New South Wales, Randwick, Australia
| | - Josie van Dorst
- School of Clinical Medicine, Discipline of Paediatrics and Child Health, UNSW Medicine and Health, Univeristy of New South Wales, Randwick, Australia
| | - Tamarah Katz
- School of Clinical Medicine, Discipline of Paediatrics and Child Health, UNSW Medicine and Health, Univeristy of New South Wales, Randwick, Australia,Department of Nutrition and Dietetics, Sydney Children’s Hospital Randwick, Randwick, Australia
| | - Michael Doumit
- Department of Physiotherapy, Sydney Children’s Hospital Randwick, Randwick, Australia
| | - Bernadette Prentice
- School of Clinical Medicine, Discipline of Paediatrics and Child Health, UNSW Medicine and Health, Univeristy of New South Wales, Randwick, Australia,Molecular and Integrative Cystic Fibrosis (miCF) Research Centre, University of New South Wales, Randwick, Australia,Department of Respiratory Medicine, Sydney Childrens Hospital, Randwick, Australia
| | - Louisa Owens
- Department of Respiratory Medicine, Sydney Childrens Hospital, Randwick, Australia
| | - Yvonne Belessis
- Department of Respiratory Medicine, Sydney Childrens Hospital, Randwick, Australia
| | - Sandra Chuang
- School of Clinical Medicine, Discipline of Paediatrics and Child Health, UNSW Medicine and Health, Univeristy of New South Wales, Randwick, Australia,Department of Respiratory Medicine, Sydney Childrens Hospital, Randwick, Australia
| | - Adam Jaffe
- School of Clinical Medicine, Discipline of Paediatrics and Child Health, UNSW Medicine and Health, Univeristy of New South Wales, Randwick, Australia,Molecular and Integrative Cystic Fibrosis (miCF) Research Centre, University of New South Wales, Randwick, Australia,Department of Respiratory Medicine, Sydney Childrens Hospital, Randwick, Australia
| | - Torsten Thomas
- Biological, Earth and Environmental Sciences, University of New South Wales, Randwick, Australia,University of New South Wales, Centre for Marine Science and Innovation, Randwick, Australia
| | - Michael Coffey
- School of Clinical Medicine, Discipline of Paediatrics and Child Health, UNSW Medicine and Health, Univeristy of New South Wales, Randwick, Australia,Department of Gastroenterology, Sydney Children’s Hospital, Randwick, Australia
| | - Chee Y. Ooi
- School of Clinical Medicine, Discipline of Paediatrics and Child Health, UNSW Medicine and Health, Univeristy of New South Wales, Randwick, Australia,Molecular and Integrative Cystic Fibrosis (miCF) Research Centre, University of New South Wales, Randwick, Australia,Department of Gastroenterology, Sydney Children’s Hospital, Randwick, Australia,CONTACT Chee Y. Ooi Centre for Child Health Research and Innovation, Level 8, Bright Alliance Building, Cnr of Avoca and High Streets, Randwick, NSW2031, Australia
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19
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Olaniyi KS, Areloegbe SE, Oyeleke MB. Acetate restores hypothalamic-adipose kisspeptin status in a rat model of PCOS by suppression of NLRP3 immunoreactivity. Endocrine 2022; 78:628-640. [PMID: 36114434 DOI: 10.1007/s12020-022-03191-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 09/02/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Polycystic ovary syndrome (PCOS) is a complex reproductive event that is delineated by endocrine/metabolic disorders. Alteration of kisspeptin status in the hypothalamus and adipose tissue is critical to increased endocrine/metabolic derangements in PCOS individuals, aggravating the clinical manifestation of PCOS and its complications. Short chain fatty acids (SCFAs) are crucial modulators of metabolic homeostasis. However, the role of SCFAs, particularly acetate on hypothalamic-adipose kisspeptin status (HAKS) in PCOS model is unknown. The present study hypothesized acetate as a key player in restoration of deranged HAKS, associated with experimental PCOS model. METHODS Three groups (n = 6/group) of female Wistar rats (120-150 g) were used. The groups were treated (po) for 21 days with vehicle, letrozole (1 mg/kg) with/without acetate (200 mg/kg) respectively. RESULTS Letrozole-treated animals had impaired glucose homeostasis, elevated testosterone, leptin and LH/FSH ratio and decreased GnRH and adiponectin with ovarian tissues revealing degenerated follicles and disrupted morphology. These animals also showed increased concentration of hypothalamic triglyceride (TG)/total cholesterol (TC), free fatty acid (FFA), and decreased concentration of TG/TC/FFA in visceral adipose tissue (VAT) with an increase in hypothalamic and VAT malondialdehyde, NF-κB/TNF-α and decreased glutathione/G6PD and hypothalamic but not VAT kisspeptin. Immunohistochemical analysis revealed the expression of NLRP3 inflammasome in the hypothalamus and VAT and all these changes were attenuated by acetate. CONCLUSIONS Altogether, the present results demonstrate that PCOS is characterized with hypothalamic-adipose inflammation, associated with immunohistochemical expression of NLRP3 with significant alteration of hypothalamic but not adipose kisspeptin. The results suggest that acetate restores kisspeptin status in PCOS animals. This beneficial effect is accompanied by repressed NLRP3 immunoreactivity.
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Affiliation(s)
- Kehinde S Olaniyi
- Cardio/Repro-metabolic and Microbiome Research Unit, Department of Physiology, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, 360101, Nigeria.
| | - Stephanie E Areloegbe
- Cardio/Repro-metabolic and Microbiome Research Unit, Department of Physiology, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, 360101, Nigeria
| | - Mosunmola B Oyeleke
- Cardio/Repro-metabolic and Microbiome Research Unit, Department of Physiology, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, 360101, Nigeria
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20
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Tong S, Zhang P, Cheng Q, Chen M, Chen X, Wang Z, Lu X, Wu H. The role of gut microbiota in gout: Is gut microbiota a potential target for gout treatment. Front Cell Infect Microbiol 2022; 12:1051682. [PMID: 36506033 PMCID: PMC9730829 DOI: 10.3389/fcimb.2022.1051682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/11/2022] [Indexed: 11/25/2022] Open
Abstract
Numerous studies have demonstrated that gut microbiota is essential for the host's health because it regulates the host's metabolism, endocrine, and immune systems. In recent years, increasing evidence has shown that gut microbiota plays a role in the onset and progression of gout. Changes in the composition and metabolism of the gut microbiota, result in abnormalities of uric acid degradation, increasing uric acid generation, releasing pro-inflammatory mediators, and intestinal barrier damage in developing gout. As a result, gout therapy that targets gut microbiota has drawn significant interest. This review summarized how the gut microbiota contributes to the pathophysiology of gout and how gout affects the gut microbiota. Additionally, this study explained how gut microbiota might serve as a unique index for the diagnosis of gout and how conventional gout treatment medicines interact with it. Finally, prospective therapeutic approaches focusing on gut microbiota for the prevention and treatment of gout were highlighted, which may represent a future avenue in gout treatment.
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Affiliation(s)
| | | | | | | | | | | | - Xiaoyong Lu
- *Correspondence: Xiaoyong Lu, ; Huaxiang Wu,
| | - Huaxiang Wu
- *Correspondence: Xiaoyong Lu, ; Huaxiang Wu,
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21
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The Therapeutic Effect of Phosphopeptide P140 Attenuates Inflammation Induced by Uric Acid Crystals in Gout Arthritis Mouse Model. Cells 2022; 11:cells11233709. [PMID: 36496970 PMCID: PMC9740613 DOI: 10.3390/cells11233709] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/23/2022] Open
Abstract
Gout is a painful form of inflammatory arthritis characterized by the deposition of monosodium urate (MSU) crystals in the joints. The aim of this study was to investigate the effect of peptide P140 on the inflammatory responses in crystal-induced mouse models of gout and cell models including MSU-treated human cells. Injection of MSU crystals into the knee joint of mice induced neutrophil influx and inflammatory hypernociception. Injection of MSU crystals subcutaneously into the hind paw induced edema and increased pro-inflammatory cytokines levels. Treatment with P140 effectively reduced hypernociception, the neutrophil influx, and pro-inflammatory cytokine levels in these experimental models. Furthermore, P140 modulated neutrophils chemotaxis in vitro and increased apoptosis pathways through augmented caspase 3 activity and reduced NFκB phosphorylation. Moreover, P140 increased the production of the pro-resolving mediator annexin A1 and decreased the expression of the autophagy-related ATG5-ATG12 complex and HSPA8 chaperone protein. Overall, these findings suggest that P140 exerts a significant beneficial effect in a neutrophilic inflammation observed in the model of gout that can be of special interest in the design of new therapeutic strategies.
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22
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Tuz AA, Hasenberg A, Hermann DM, Gunzer M, Singh V. Ischemic stroke and concomitant gastrointestinal complications- a fatal combination for patient recovery. Front Immunol 2022; 13:1037330. [PMID: 36439129 PMCID: PMC9686001 DOI: 10.3389/fimmu.2022.1037330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/24/2022] [Indexed: 08/12/2023] Open
Abstract
Stroke is primarily a neurodegenerative disease but can also severely impact the functions of other vital organs and deteriorate disease outcomes. A malfunction of the gastrointestinal tract (GIT), commonly observed in stroke patients, is often characterized by severe bowel obstruction, intestinal microbiota changes and inflammation. Over-activated immune cells after stroke are the major contributors to endorse intestinal inflammation and may induce damage to single-layer epithelial cell barriers. The post-stroke leakage of intestinal barriers may allow the translocation and dissemination of resident microflora to systemic organs and cause sepsis. This overshooting systemic immune reaction fuels ongoing inflammation in the degenerating brain and slows recovery. Currently, the therapeutic options to treat these GIT-associated anomalies are very limited and further research is required to develop novel treatments. In this mini-review, we first discuss the current knowledge from clinical studies and experimental stroke models that provide strong evidence of the existence of post-stroke GIT complications. Then, we review the literature regarding novel therapeutic approaches that might help to maintain GIT homeostasis and improve neurological outcomes in stroke patients.
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Affiliation(s)
- Ali A. Tuz
- Institute for Experimental Immunology and Imaging, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Anja Hasenberg
- Institute for Experimental Immunology and Imaging, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Dirk M. Hermann
- Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Matthias Gunzer
- Institute for Experimental Immunology and Imaging, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Leibniz-Institut für Analytische Wissenschaften - ISAS -e.V., Dortmund, Germany
| | - Vikramjeet Singh
- Institute for Experimental Immunology and Imaging, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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Health Benefits and Side Effects of Short-Chain Fatty Acids. Foods 2022; 11:foods11182863. [PMID: 36140990 PMCID: PMC9498509 DOI: 10.3390/foods11182863] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 12/12/2022] Open
Abstract
The gut microbiota and their metabolites could play an important role in health and diseases of human beings. Short-chain fatty acids (SCFAs) are mainly produced by gut microbiome fermentation of dietary fiber and could also be produced by bacteria of the skin and vagina. Acetate, propionate, and butyrate are three major SCFAs, and their bioactivities have been widely studied. The SCFAs have many health benefits, such as anti-inflammatory, immunoregulatory, anti-obesity, anti-diabetes, anticancer, cardiovascular protective, hepatoprotective, and neuroprotective activities. This paper summarizes health benefits and side effects of SCFAs with a special attention paid to the mechanisms of action. This paper provides better support for people eating dietary fiber as well as ways for dietary fiber to be developed into functional food to prevent diseases.
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Gout and Diet: A Comprehensive Review of Mechanisms and Management. Nutrients 2022; 14:nu14173525. [PMID: 36079783 PMCID: PMC9459802 DOI: 10.3390/nu14173525] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 11/25/2022] Open
Abstract
Gout is well known as an inflammatory rheumatic disease presenting with arthritis and abnormal metabolism of uric acid. The recognition of diet-induced systemic metabolic pathways have provided new mechanistic insights and potential interventions on gout progression. However, the dietary recommendations for gouty patients generally focus on food categories, with few simultaneous considerations of nutritional factors and systemic metabolism. It is worthwhile to comprehensively review the mechanistic findings and potential interventions of diet-related nutrients against the development of gout, including purine metabolism, urate deposition, and gouty inflammation. Although piecemeal modifications of various nutrients often provide incomplete dietary recommendations, understanding the role of nutritional factors in gouty development can help patients choose their healthy diet based on personal preference and disease course. The combination of dietary management and medication may potentially achieve enhanced treatment effects, especially for severe patients. Therefore, the role of dietary and nutritional factors in the development of gout is systematically reviewed to propose dietary modification strategies for gout management by: (1) reducing nutritional risk factors against metabolic syndrome; (2) supplementing with beneficial nutrients to affect uric acid metabolism and gouty inflammation; and (3) considering nutritional modification combined with medication supplementation to decrease the frequency of gout flares.
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Pi X, Yu Z, Yang X, Du Z, Liu W. Effects of Zymosan on Short-Chain Fatty Acid and Gas Production in in vitro Fermentation Models of the Human Intestinal Microbiota. Front Nutr 2022; 9:921137. [PMID: 35859755 PMCID: PMC9291218 DOI: 10.3389/fnut.2022.921137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 06/06/2022] [Indexed: 11/27/2022] Open
Abstract
In this study, the effects of zymosan (HG, hydrolyzed glucan) on the structure and metabolism of fecal microbiota in Chinese healthy people was investigated by an in vitro simulated intestinal microecology fermentation model. We found that HG significantly regulated fecal microbiota composition, including the increase of Bifidobacterium, Faecalibacterium, Prevotella and the decrease of Escherichia-Shigella. Moreover, HG significantly increased the total production of short chain fatty acids (SCFAs) and gases, in which the production of Acetic acid, Propionic acid, CO2, and H2 significantly increased while the production of Isovaleric acid and NH3 significantly decreased. Additionally, the supplement of HG showed certain differences in the regulation of microbiota from four groups. HG significantly increased the relative abundance of Bifidobacterium and significantly decreased the relative abundance of Escherichia-Shigella excluding the older men group. Meanwhile, and the relative abundance of Lactobacillus was significantly increased in young populations. And the relative abundance of Bacteroides was significantly decreased only in the young women. Furthermore, HG significantly increased H2 concentration only in older men. These findings suggest that HG, as a new generation of prebiotics, could regulate the structure of fecal microbiota and its metabolites in a better direction, but when HG participates in precision nutrition formula, it may be necessary to consider the differences in the utilization of different populations.
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Affiliation(s)
- Xionge Pi
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Zaichun Yu
- College of Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Xiaoxia Yang
- College of Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhi Du
- Department of Pharmacy, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Wei Liu
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- *Correspondence: Wei Liu
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26
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Smythe P, Efthimiou G. In Silico Genomic and Metabolic Atlas of Limosilactobacillus reuteri DSM 20016: An Insight into Human Health. Microorganisms 2022; 10:microorganisms10071341. [PMID: 35889060 PMCID: PMC9320016 DOI: 10.3390/microorganisms10071341] [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: 05/19/2022] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 11/23/2022] Open
Abstract
Probiotics are bacterial strains that are known to provide host health benefits. Limosilactobacillus reuteri is a well-documented lactic acid bacterium that has been cultured from numerous human sites. The strain investigated was L. reuteri DSM 20016, which has been found to produce useful metabolites. The strain was explored using genomic and proteomic tools, manual searches, and databases, including KEGG, STRING, BLAST Sequence Similarity Search, and UniProt. This study located over 200 key genes that were involved in human health benefit pathways. L. reuteri DSM 20016 has metabolic pathways to produce acetate, propionate, and lactate, and there is evidence of a pathway for butanoate production through a FASII mechanism. The bacterium produces histamine through the hdc operon, which may be able to suppress proinflammatory TNF, and the bacterium also has the ability to synthesize folate and riboflavin, although whether they are secreted is yet to be explored. The strain can bind to human Caco2 cells through srtA, mapA/cnb, msrB, and fbpA and can compete against enteric bacteria using reuterin, which is an antimicrobial that induces oxidative stress. The atlas could be used for designing metabolic engineering approaches to improve beneficial metabolite biosynthesis and better probiotic-based cures.
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Affiliation(s)
- Paisleigh Smythe
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, Castle Hill Hospital, Daisy Building, Hull HU16 5JQ, UK;
| | - Georgios Efthimiou
- Department of Biomedical and Forensic Sciences, University of Hull, Cottingham Road, Hardy Building, Hull HU6 7RX, UK
- Correspondence: ; Tel.: +44-(0)1482-465970
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27
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Wang Y, Moon A, Huang J, Sun Y, Qiu HJ. Antiviral Effects and Underlying Mechanisms of Probiotics as Promising Antivirals. Front Cell Infect Microbiol 2022; 12:928050. [PMID: 35734576 PMCID: PMC9207339 DOI: 10.3389/fcimb.2022.928050] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/10/2022] [Indexed: 11/13/2022] Open
Abstract
Probiotics exert a variety of beneficial effects, including maintaining homeostasis and the balance of intestinal microorganisms, activating the immune system, and regulating immune responses. Due to the beneficial effects of probiotics, a wide range of probiotics have been developed as probiotic agents for animal and human health. Viral diseases cause serious economic losses to the livestock every year and remain a great challenge for animals. Moreover, strategies for the prevention and control of viral diseases are limited. Viruses enter the host through the skin and mucosal surface, in which are colonized by hundreds of millions of microorganisms. The antiviral effects of probiotics have been proved, including modulation of chemical, microbial, physical, and immune barriers through various probiotics, probiotic metabolites, and host signaling pathways. It is of great significance yet far from enough to elucidate the antiviral mechanisms of probiotics. The major interest of this review is to discuss the antiviral effects and underlying mechanisms of probiotics and to provide targets for the development of novel antivirals.
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Affiliation(s)
| | | | | | - Yuan Sun
- *Correspondence: Hua-Ji Qiu, ; Yuan Sun,
| | - Hua-Ji Qiu
- *Correspondence: Hua-Ji Qiu, ; Yuan Sun,
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28
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Ma S, Wang J, He F, Zuo D, Li F, Fan H, Yin Z, Liang H, Li Q. Sodium propionate improves rheumatoid arthritis by inhibiting survivin mediated proliferation of fibroblast like synoviocytes by promoting miR-140-5p. Autoimmunity 2022; 55:378-387. [PMID: 35549788 DOI: 10.1080/08916934.2022.2073589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
BACKGROUND Increased proliferation and impaired death of fibroblast-like synovial cells play an important role in the development of rheumatoid arthritis (RA). Survivin plays an important role in the prodromal stage and prognosis of RA and has been introduced as a biomarker of joint injury in RA patients. The purpose of this study was to explore whether propionate alleviates RA through miR-140-5p/survivin pathway. METHODS The synovial tissues of RA patients were collected to detect the expression levels of miR-140-5p and survivin; normal human fibroblast-like synovial cells (HLSs) and RA fibroblast-like synovial cells (RA-FLSs) were cultured and treated with 10 mM of sodium propionate (SP), then the expressions of miR-140-5p and survivin, cell viability and apoptosis were detected; collagen induced arthritis (CIA) rat model was constructed and treated with SP, then the tissue inflammation level and the expression levels of miR-140-5p and Survivin were detected. RESULTS The expression of miR-140-5p decreased in synovial tissues of RA patients and RA-FLSs cells, while the expression of survivin increased significantly in RA patients. SP promoted miR-140-5p expression and apoptosis in RA-FLSs cells and inhibited survivin expression and cell viability of RA-FLSs cells. In addition, miR-140-5p plays a protective role by targeting survivin. Importantly, in the CIA rat model, SP reduced joint inflammatory response, and the miR-140-5p inhibitor weakened the protective effect of SP. CONCLUSION SP can alleviate RA by promoting the expression of miR-140-5p and inhibiting the excessive proliferation and death impairment of RA-FLSs cells induced by survivin.
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Affiliation(s)
- Sha Ma
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Medical Faculty of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Department of Rheumatology, the First People's Hospital of Yunnan Province, Kunming, China
| | - Jing Wang
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Department of Rheumatology, the First People's Hospital of Yunnan Province, Kunming, China
| | - Fang He
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Department of Rheumatology, the First People's Hospital of Yunnan Province, Kunming, China
| | - Dachen Zuo
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Department of Rheumatology, the First People's Hospital of Yunnan Province, Kunming, China
| | - Fayou Li
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Department of Rheumatology, the First People's Hospital of Yunnan Province, Kunming, China
| | - Hongtao Fan
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Department of Rheumatology, the First People's Hospital of Yunnan Province, Kunming, China
| | - Zijing Yin
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Department of Rheumatology, the First People's Hospital of Yunnan Province, Kunming, China
| | - Hui Liang
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Department of Rheumatology, the First People's Hospital of Yunnan Province, Kunming, China
| | - Qin Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Medical Faculty of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan Province, China.,Department of Rheumatology, the First People's Hospital of Yunnan Province, Kunming, China
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Yin H, Liu N, Chen J. The Role of the Intestine in the Development of Hyperuricemia. Front Immunol 2022; 13:845684. [PMID: 35281005 PMCID: PMC8907525 DOI: 10.3389/fimmu.2022.845684] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/31/2022] [Indexed: 12/30/2022] Open
Abstract
Gout is a common inflammatory arthritis caused by the deposition of sodium urate crystals in the joints. Hyperuricemia is the fundamental factor of gout. The onset of hyperuricemia is related to purine metabolism disorders or uric acid excretion disorders. Current studies have shown that the intestine is an important potential organ for the excretion of uric acid outside the kidneys. The excretion of uric acid of gut is mainly achieved through the action of uric acid transporters and the catabolism of intestinal flora, which plays an important role in the body’s uric acid balance. Here we reviewed the effects of intestinal uric acid transporters and intestinal flora on uric acid excretion, and provide new ideas for the treatment of hyperuricemia and gout.
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Affiliation(s)
- Hui Yin
- Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital, The First Hospital of Nanchang Medical College, Nanchang, China.,Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Na Liu
- Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital, The First Hospital of Nanchang Medical College, Nanchang, China.,Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Jie Chen
- Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital, The First Hospital of Nanchang Medical College, Nanchang, China.,Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
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30
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Dysbiosis of the Female Murine Gut Microbiome Exacerbates Neutrophil-Mediated Vascular Allograft Injury by Affecting Immunoregulation by Acetate. Transplantation 2022; 106:2155-2165. [PMID: 35485447 DOI: 10.1097/tp.0000000000004161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND The gut microbiota affects immune responses that cause organ transplant rejection, but the mechanisms by which this occurs remain poorly understood. METHODS We have examined, in a murine model, how disruption of the gut microbiota with antibiotics early in life alters this microbial community later in life to affect immune responses that injure vascular allografts. RESULTS Analysis of 16S rRNA and whole genome sequencing of the gut microbiota demonstrated that early life disruption of this microbial community with antibiotics caused a reduction in taxa and enzymatic genes involved in the synthesis of acetate, an immunoregulatory metabolite in mice and humans. When allograft vascular injury was examined, early life disruption of the gut microbiota increased neutrophil accumulation and related medial injury of transplanted arteries. Normalizing the gut microbiota by co-housing and oral administration of acetate prevented neutrophil-mediated vascular allograft injury. CONCLUSIONS Dysbiosis of the gut microbiome that reduces its production of the immunoregulatory metabolite acetate exacerbates neutrophil-mediated allograft vascular injury.
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31
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Description of a Newly Isolated Blautia faecis Strain and Its Benefit in Mouse Models of Post-Influenza Secondary Enteric and Pulmonary Infections. Nutrients 2022; 14:nu14071478. [PMID: 35406091 PMCID: PMC9003314 DOI: 10.3390/nu14071478] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/28/2022] [Accepted: 03/31/2022] [Indexed: 11/28/2022] Open
Abstract
The expanding knowledge on the systemic influence of the human microbiome suggests that fecal samples are underexploited sources of new beneficial strains for extra-intestinal health. We have recently shown that acetate, a main circulating microbiota-derived molecule, reduces the deleterious effects of pulmonary Streptococcus pneumoniae and enteric Salmonella enterica serovar Typhimurium bacterial post-influenza superinfections. Considering the beneficial and broad effects of acetate, we intended to isolate a commensal strain, producing acetate and potentially exploitable in the context of respiratory infections. We designed successive steps to select intestinal commensals that are extremely oxygen-sensitive, cultivable after a freezing process, without a proinflammatory effect on IL-8 induction, and producing acetate. We have identified the Blautia faecis DSM33383 strain, which decreased the TNFα-induced production of IL-8 by the intestinal epithelial cell line HT-29. The beneficial effect of this bacterial strain was further studied in two preclinical models of post-influenza Streptococcus pneumoniae (S.p) and Salmonella enterica serovar Typhimurium (S.t) superinfection. The intragastrical administration of Blautia faecis DSM33383 led to protection in influenza-infected mice suffering from an S.p. and, to a lesser extent, from an S.t secondary infection. Altogether, this study showed that Blautia faecis DSM33383 could be a promising candidate for preventive management of respiratory infectious diseases.
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32
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Kim HW, Yoon EJ, Jeong SH, Park MC. Distinct Gut Microbiota in Patients with Asymptomatic Hyperuricemia: A Potential Protector against Gout Development. Yonsei Med J 2022; 63:241-251. [PMID: 35184426 PMCID: PMC8860935 DOI: 10.3349/ymj.2022.63.3.241] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 11/27/2022] Open
Abstract
PURPOSE Here, we aimed to elucidate the differences in microbiota composition between patients with gout and those with asymptomatic hyperuricemia (asHU) and determine the effect of uric acid-lowering therapy (ULT) on the gut microbiome. MATERIALS AND METHODS Stool samples from patients with asHU (n=8) and three groups of gout patients, i.e., acute gout patients before ULT (0ULT, n=14), the same acute gout patients after 30-day ULT (30ULT, n=9), and chronic gout patients after ≥6-month ULT (cULT, n=18) were collected and analyzed using 16S rRNA gene-based pyrosequencing. The composition of microbial taxonomy and communities, species diversity, and relationships among microbial communities were elucidated by bioinformatic analysis. RESULTS Gout patients showed less diverse gut microbiota than asHU patients. The microbiota of the asHU group exhibited a higher Firmicutes-to-Bacteroidetes (F/B) ratio and lower Prevotella-to-Bacteroides (P/B) ratio than the gout group; significantly, the F/B ratio increased in gout patients after ULT. Moreover, a balanced enterotype populated asHU patients compared to gout patients. Notably, the gut microbiota in asHU patients had a higher proportion of taxa with potentially anti-inflammatory effects compared to the gut microbiota in gout patients. CONCLUSION We found that microbial composition differs between asHU and gout patients. The differential gut microbiota in asHU patients may protect against gout development, whereas that in gout patients may have a role in gout provocation. ULT in gout patients altered the gut microbiota, and may help alleviate gout pathology and mitigate gout progression.
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Affiliation(s)
- Hye Won Kim
- Department of Medicine, The Graduate School, Yonsei University College of Medicine, Seoul, Korea
- Hospital Medicine Center, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Eun-Jeong Yoon
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
- Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Seok Hoon Jeong
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
- Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Min-Chan Park
- Division of Rheumatology, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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Ni D, Tan J, Niewold P, Spiteri AG, Pinget GV, Stanley D, King NJC, Macia L. Impact of Dietary Fiber on West Nile Virus Infection. Front Immunol 2022; 13:784486. [PMID: 35296081 PMCID: PMC8919037 DOI: 10.3389/fimmu.2022.784486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 02/04/2022] [Indexed: 12/11/2022] Open
Abstract
Dietary fiber supports healthy gut bacteria and their production of short-chain fatty acids (SCFA), which promote anti-inflammatory cell development, in particular, regulatory T cells. It is thus beneficial in many diseases, including influenza infection. While disruption of the gut microbiota by antibiotic treatment aggravates West Nile Virus (WNV) disease, whether dietary fiber is beneficial is unknown. WNV is a widely-distributed neurotropic flavivirus that recruits inflammatory monocytes into the brain, causing life-threatening encephalitis. To investigate the impact of dietary fiber on WNV encephalitis, mice were fed on diets deficient or enriched with dietary fiber for two weeks prior to inoculation with WNV. To induce encephalitis, mice were inoculated intranasally with WNV and maintained on these diets. Despite increased fecal SCFA acetate and changes in gut microbiota composition, dietary fiber did not affect clinical scores, leukocyte infiltration into the brain, or survival. After the brain, highest virus loads were measured in the colon in neurons of the submucosal and myenteric plexuses. Associated with this, there was disrupted gut homeostasis, with shorter colon length and higher local inflammatory cytokine levels, which were not affected by dietary fiber. Thus, fiber supplementation is not effective in WNV encephalitis.
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Affiliation(s)
- Duan Ni
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Jian Tan
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Paula Niewold
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Department of Infectious Diseases, Leiden University Medical Centre, Leiden, Netherlands
| | - Alanna Gabrielle Spiteri
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Gabriela Veronica Pinget
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Dragana Stanley
- School of Health, Medical and Applied Science, Central Queensland University, Rockhampton, QLD, Australia
| | - Nicholas Jonathan Cole King
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Sydney Institute for Infectious Diseases, The University of Sydney, Sydney, NSW, Australia
- *Correspondence: Nicholas Jonathan Cole King, ; Laurence Macia,
| | - Laurence Macia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Sydney Cytometry, The University of Sydney and The Centenary Institute, Sydney, NSW, Australia
- *Correspondence: Nicholas Jonathan Cole King, ; Laurence Macia,
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34
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Park HK, Lee SJ. Treatment of gouty arthritis is associated with restoring the gut microbiota and promoting the production of short-chain fatty acids. Arthritis Res Ther 2022; 24:51. [PMID: 35183234 PMCID: PMC8857835 DOI: 10.1186/s13075-022-02742-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/08/2022] [Indexed: 12/15/2022] Open
Abstract
Introduction Although factors initiating the inflammatory response to monosodium urate crystals have been identified, the role of the gut microbiota and their metabolites on gout remains unknown. This study aimed to investigate the changes in both gut microbiota and short-chain fatty acids (SCFAs) according to inflammatory states of gout in the same patients. Methods This study enrolled 20 patients with gout in the acute state who had active joints and were followed up until the recovery state with no active joints. Blood and fecal samples were simultaneously collected within 3 days for each disease state. The stool microbiome was analyzed using 16S rRNA sequencing, and serum SCFAs were measured by gas chromatography-mass spectrometry. Differences in the gut microbiome and serum SCFAs were compared between the acute and recovery states. Results Beta diversity of the microbiome was significantly different between the acute and recovery states in terms of weighted UniFrac distance. In the recovery state, Prevotellaceae (p = 0.006) and the genus Prevotella (p = 0.009) were significantly enriched, whereas Enterobacteriaceae (p = 0.019) and its derivative genus Shigella (p = 0.023) were significantly decreased compared to the acute state. Similarly, the levels of acetate were dramatically increased in the recovery state compared to the acute state (p < 0.010). The levels of propionate and butyrate tended to increase but without statistical significance. Conclusion Substantial alterations of bacterial composition with the promotion of SCFA formation (especially acetate) were found after treatment in patients with gouty arthritis. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-022-02742-9.
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35
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van Dorst JM, Tam RY, Ooi CY. What Do We Know about the Microbiome in Cystic Fibrosis? Is There a Role for Probiotics and Prebiotics? Nutrients 2022; 14:nu14030480. [PMID: 35276841 PMCID: PMC8840103 DOI: 10.3390/nu14030480] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 12/12/2022] Open
Abstract
Cystic fibrosis (CF) is a life-shortening genetic disorder that affects the cystic fibrosis transmembrane conductance regulator (CFTR) protein. In the gastrointestinal (GI) tract, CFTR dysfunction results in low intestinal pH, thick and inspissated mucus, a lack of endogenous pancreatic enzymes, and reduced motility. These mechanisms, combined with antibiotic therapies, drive GI inflammation and significant alteration of the GI microbiota (dysbiosis). Dysbiosis and inflammation are key factors in systemic inflammation and GI complications including malignancy. The following review examines the potential for probiotic and prebiotic therapies to provide clinical benefits through modulation of the microbiome. Evidence from randomised control trials suggest probiotics are likely to improve GI inflammation and reduce the incidence of CF pulmonary exacerbations. However, the highly variable, low-quality data is a barrier to the implementation of probiotics into routine CF care. Epidemiological studies and clinical trials support the potential of dietary fibre and prebiotic supplements to beneficially modulate the microbiome in gastrointestinal conditions. To date, limited evidence is available on their safety and efficacy in CF. Variable responses to probiotics and prebiotics highlight the need for personalised approaches that consider an individual’s underlying microbiota, diet, and existing medications against the backdrop of the complex nutritional needs in CF.
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Affiliation(s)
- Josie M. van Dorst
- Discipline of Paediatrics & Child Health, Randwick Clinical Campus, School of Clinical Medicine, UNSW Medicine & Health, UNSW, Sydney 2031, Australia; (J.M.v.D.); (R.Y.T.)
| | - Rachel Y. Tam
- Discipline of Paediatrics & Child Health, Randwick Clinical Campus, School of Clinical Medicine, UNSW Medicine & Health, UNSW, Sydney 2031, Australia; (J.M.v.D.); (R.Y.T.)
| | - Chee Y. Ooi
- Discipline of Paediatrics & Child Health, Randwick Clinical Campus, School of Clinical Medicine, UNSW Medicine & Health, UNSW, Sydney 2031, Australia; (J.M.v.D.); (R.Y.T.)
- Molecular and Integrative Cystic Fibrosis (miCF) Research Centre, Sydney 2031, Australia
- Department of Gastroenterology, Sydney Children’s Hospital Randwick, Sydney 2031, Australia
- Correspondence:
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Wu Y, Ye Z, Feng P, Li R, Chen X, Tian X, Han R, Kakade A, Liu P, Li X. Limosilactobacillus fermentum JL-3 isolated from "Jiangshui" ameliorates hyperuricemia by degrading uric acid. Gut Microbes 2022; 13:1-18. [PMID: 33764849 PMCID: PMC8007157 DOI: 10.1080/19490976.2021.1897211] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Recent studies into the beneficial effects of fermented foods have shown that this class of foods are effective in managing hyperuricemia and gout. In this study, the uric acid (UA) degradation ability of Limosilactobacillus fermentum JL-3 strain, isolated from "Jiangshui" (a fermented Chinese food), was investigated. In vitro results showed that JL-3 strain exhibited high degradation capacity and selectivity toward UA. After oral administration to mice for 15 days, JL-3 colonization was continuously detected in the feces of mice. The UA level in urine of mice fed with JL-3 was similar with the control group mice. And the serum UA level of the former was significantly lower (31.3%) than in the control, further confirmed the UA-lowering effect of JL-3 strain. Limosilactobacillus fermentum JL-3 strain also restored some of the inflammatory markers and oxidative stress indicators (IL-1β, MDA, CRE, blood urea nitrogen) related to hyperuricemia, while the gut microbial diversity results showed that JL-3 could regulate gut microbiota dysbiosis caused by hyperuricemia. Therefore, the probiotic Limosilactobacillus fermentum JL-3 strain is effective in lowering UA levels in mice and could be used as a therapeutic adjunct agent in treating hyperuricemia.
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Affiliation(s)
- Ying Wu
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, China,Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, China
| | - Ze Ye
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Pengya Feng
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, China
| | - Rong Li
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, China,Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, China
| | - Xiao Chen
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, China
| | - Xiaozhu Tian
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, China,Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, China
| | - Rong Han
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, China
| | - Apurva Kakade
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, China
| | - Pu Liu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, China,CONTACT Xiangkai Li Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, China
| | - Xiangkai Li
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, China,Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, China
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37
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The interplay between Sleep and Gut Microbiota. Brain Res Bull 2022; 180:131-146. [DOI: 10.1016/j.brainresbull.2021.12.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/27/2021] [Accepted: 12/30/2021] [Indexed: 02/06/2023]
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38
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Dong M, Wen S, Zhou L. The Relationship Between the Blood-Brain-Barrier and the Central Effects of Glucagon-Like Peptide-1 Receptor Agonists and Sodium-Glucose Cotransporter-2 Inhibitors. Diabetes Metab Syndr Obes 2022; 15:2583-2597. [PMID: 36035518 PMCID: PMC9417299 DOI: 10.2147/dmso.s375559] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 08/12/2022] [Indexed: 11/23/2022] Open
Abstract
Diabetes and obesity are growing problems worldwide and are associated with a range of acute and chronic complications, including acute myocardial infarction (AMI) and stroke. Novel anti-diabetic medications designed to treat T2DM, such as glucagon-like peptide-1 receptor agonists (GLP-1RAs) and sodium-glucose cotransporter-2 inhibitors (SGLT-2is), exert beneficial effects on metabolism and the cardiovascular system. However, the underlying mechanisms are poorly understood. GLP-1RAs induce anorexic effects by inhibiting the central regulation of food intake to reduce body weight. Central/peripheral administration of GLP-1RAs inhibits food intake, accompanied by an increase in c-Fos expression in neurons within the paraventricular nucleus (PVN), amygdala, the nucleus of the solitary tract (NTS), area postrema (AP), lateral parabrachial nucleus (LPB) and arcuate nucleus (ARC), induced by the activation of GLP-1 receptors in the central nervous system (CNS). Therefore, GLP-1RAs need to pass through the blood-brain barrier to exert their pharmacological effects. In addition, studies revealed that SGLT-2is could reduce the risk of chronic heart failure in people with type 2 diabetes. SGLT-2 is extensively expressed throughout the CNS, and c-Fos expression was also observed within 2 hours of administration of SGLT-2is in mice. Recent clinical studies reported that SGLT-2is improved hypertension and atrial fibrillation by modulating the "overstimulated" renin-angiotensin-aldosterone system (RAAS) and suppressing the sympathetic nervous system (SNS) by directly/indirectly acting on the rostral ventrolateral medulla. Despite extensive research into the central mechanism of GLP-1RAs and SGLT-2is, the penetration of the blood-brain barrier (BBB) remains controversial. This review discusses the interaction between GLP-1RAs and SGLT-2is and the BBB to induce pharmacological effects via the CNS.
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Affiliation(s)
- Meiyuan Dong
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, People’s Republic of China
| | - Song Wen
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, People’s Republic of China
| | - Ligang Zhou
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, People’s Republic of China
- Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai Pudong Hospital, Shanghai, People’s Republic of China
- Correspondence: Ligang Zhou, Tel +8613611927616, Email
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Yuan X, Chen R, Zhang Y, Lin X, Yang X. Altered Gut Microbiota in Children With Hyperuricemia. Front Endocrinol (Lausanne) 2022; 13:848715. [PMID: 35574004 PMCID: PMC9091909 DOI: 10.3389/fendo.2022.848715] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/24/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND In adults, gut dysbiosis may contribute to the pathogenesis of gout. However, the characteristics of gut microbiota in children with hyperuricemia (HUA) in the absence of clinical gout have not been explored. OBJECTIVE This present study analyzed the gut microbiota in children with HUA as compared to controls (Con) and explored bacterial associations that may account for differences. METHODS A total of 80 children were enrolled in this study; they were divided into HUA and Con according to the level of serum uric acid (UA). The composition of gut microbiota was investigated by 16S rRNA high-throughput sequencing. RESULTS Principal coordinate analysis revealed that gut microbiota of the HUA group was clustered together and separated partly from the Con group. There was no difference in alpha-diversity between the two groups. However, Spearman's correlation analysis revealed that serum UA level positively correlated with genera Actinomyces, Morganella, and Streptococcus, and negatively associated with the producers of short-chain fatty acids (SCFAs), such as Alistipes, Faecalibacterium, and Oscillospira, and the sulfidogenic bacteria Bilophila. The members of the genera Alistipes and Bilophila in the Con group were significantly more prevalent than the HUA subjects. Compared to the Con cohort, metabolic pathway predictions found that the superpathways of purine nucleotide de novo biosynthesis were decreased in HUA subjects, whereas the superpathway of purine deoxyribonucleoside de gradation was increased. CONCLUSION The composition of the gut microbiota in children with HUA differs from Con. Although causality cannot be established, modification in the microbiota that produces SCFA and sulfide may promote HUA.
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Sheng S, Chen J, Zhang Y, Qin Q, Li W, Yan S, Wang Y, Li T, Gao X, Tang L, Li A, Ding S. Structural and Functional Alterations of Gut Microbiota in Males With Hyperuricemia and High Levels of Liver Enzymes. Front Med (Lausanne) 2021; 8:779994. [PMID: 34869502 PMCID: PMC8640097 DOI: 10.3389/fmed.2021.779994] [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: 09/20/2021] [Accepted: 10/15/2021] [Indexed: 02/04/2023] Open
Abstract
Objective: To investigate the correlation between the structure and function alterations of gut microbiota and biochemical indicators in males with hyperuricemia (HUA) and high levels of liver enzymes, in order to provide new evidences and therapeutic targets for the clinical diagnosis and treatment of HUA. Methods: A total of 69 patients with HUA (HUA group) and 118 healthy controls were enrolled in this study. Their age, height, waist circumference, weight, and pressure were measured. The clinical parameters such as fasting plasma glucose (FBG), aspartate aminotransferase (AST), alanine aminotransferase (ALT), serum uric acid (SUA), serum creatinine (Scr), total cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), white blood cell (WBC), platelet (PLT), and absolute value of neutrophils (NEUT) were examined. We used whole-genome shotgun sequencing technology and HUMAnN2 MetaCyc pathway database to detect the composition and pathways of the gut microbiota. The main statistical methods were student's t test, chi-square tests, and Wilcoxon rank sum test. The correlations among bacterial diversity, microbial pathways, and biochemical indicators were evaluated by the R function "cor.test" with spearman method. Results: The gut bacterial diversity in HUA group reduced significantly and the community of the microbiota was of significant difference between the two groups. The pathways that can produce 5-aminoimidazole ribonucleotide (PWY-6122, PWY-6277, and PWY-6121), aromatic amino acids, and chorismate (COMPLETE-ARO-PWY, ARO-PWY, and PWY-6163) were enriched in the HUA group; while the pathways that can produce short-chain fatty acids (SCFAs, such as CENTFERM-PWY and PWY-6590) and the gut microbiotas that can produce SCFAs (Roseburia hominis, Odoribacter splanchnicus, Ruminococcus callidus, Lachnospiraceae bacterium 3_1_46FAA, Bacteroides uniformis, Butyricimonas synergistica) and equol (Adlercreutzia equolifaciens) were enriched in healthy controls. Conclusion: The structure and function of the gut microbiota in males with HUA and high levels of liver enzymes have altered apparently. In-depth study of related mechanisms may provide new ideas for the treatment of HUA.
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Affiliation(s)
- Shifeng Sheng
- Health Management Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jingfeng Chen
- Health Management Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuheng Zhang
- Health Management Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qian Qin
- Health Management Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Weikang Li
- Health Management Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Su Yan
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Youxiang Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Tiantian Li
- Health Management Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xinxin Gao
- Health Management Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lin Tang
- Department of Nephropathy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ang Li
- Health Management Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Gene Hospital of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Suying Ding
- Health Management Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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41
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Hsu CF, Huang CC, Liu TT, Yang UC, Liu CW, Huang SF, Yang YY, Huang YH, Hou MC, Lin HC. Deletion of intestinal SIRT1 exacerbated muscle wasting in cirrhotic mice by decreasing the intestinal concentration of short-chain fatty acids and inflammation. J Pharmacol Sci 2021; 147:376-385. [PMID: 34663520 DOI: 10.1016/j.jphs.2021.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/28/2021] [Accepted: 09/06/2021] [Indexed: 11/20/2022] Open
Abstract
Systemic sirtuin 1 (SIRT1) activation alleviates muscle wasting and improves muscle function by downregulation of myotropic and proteolytic markers. In this study, we evaluated the effects of the intestinal Sirt1 deletion on the dysregulated gutmuscle axis in cirrhotic mice. Cirrhosis-related muscle wasting was induced by common bile duct ligated (BDL) in either wild-type (WT) or intestine-specific Sirt1-deleted (Sirt1IEC-KO) mice, including WT-BDL, WT-sham, Sirt1IEC-KO-BDL and Sirt1IEC-KO-sham mice. Compared with WT-BDL mice, Sirt1IEC-KO-BDL mice showed worsened low lean mass, exacerbated muscle wasting, increased expression of myotropic markers, increased muscular protein degradation, and decreased expression of myogenic markers through aggravation of intestinal inflammation (as evidenced by increased fecal calprotectin/lipocalin-2 levels, increased intestinal macrophage infiltration, and increased intestinal TNFα/IL-6 levels), decrease in abundance of short-chain fatty acid (SCFA)-producing bacteria, decrease in levels of intestinal SCFAs (with anti-inflammatory effects), and downregulation of SCFA receptor GPR43. In biliary cirrhotic mice, a decrease in the abundance of SCFA-producing bacteria and an increase in the levels of intestinal/muscular inflammatory markers are involved in the pathogenesis of dysregulated gut-muscle axis-related muscle wasting, and intestinal deletion of Sirt1 exacerbated these changes.
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Affiliation(s)
- Chien-Fu Hsu
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chia-Chang Huang
- Division of Clinical Skills Training Center, Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Tze-Tze Liu
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ueng-Cheng Yang
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chih-Wei Liu
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shiang-Fen Huang
- Division of Infection, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ying-Ying Yang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Yi-Hsiang Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ming-Chih Hou
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Han-Chieh Lin
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Yang X, Guo Y, Chen C, Shao B, Zhao L, Zhou Q, Liu J, Wang G, Yuan W, Sun Z. Interaction between intestinal microbiota and tumour immunity in the tumour microenvironment. Immunology 2021; 164:476-493. [PMID: 34322877 PMCID: PMC8517597 DOI: 10.1111/imm.13397] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/18/2021] [Accepted: 07/20/2021] [Indexed: 11/27/2022] Open
Abstract
In recent years, an increasing number of studies have reported that intestinal microbiota have an important effect on tumour immunity by affecting the tumour microenvironment (TME). The intestinal microbiota are closely associated with various immune cells, such as T lymphocytes, natural killer cells (NK cells) and macrophages. Some bacteria, such as Akkermansia muciniphila (A. muciniphila) and Lactobacillus reuteri (L. reuteri), have been shown to improve the effect of tumour immunity. Furthermore, microbial imbalance, such as the increased abundance of Fusobacterium nucleatum (F. nucleatum) and Helicobacter hepaticus (H. hepaticus), generally causes tumour formation and progression. In addition, some microbiota also play important roles in tumour immunotherapy, especially PD-L1-related therapies. Therefore, what is the relationship between these processes and how do they affect each other? In this review, we summarize the interactions and corresponding mechanisms among the intestinal microbiota, immune system and TME to facilitate the research and development of new targeted drugs and provide new approaches to tumour therapy.
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Affiliation(s)
- Xiuxiu Yang
- Department of Colorectal SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- School of MedicineZhengzhou UniversityZhengzhouChina
- Academy of Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Yaxin Guo
- Academy of Medical SciencesZhengzhou UniversityZhengzhouChina
- Department of Basic MedicalAcademy of Medical Sciences of Zhengzhou UniversityZhengzhouChina
- Henan Academy of Medical and Pharmaceutical SciencesZhengzhou UniversityZhengzhouChina
| | - Chen Chen
- Academy of Medical SciencesZhengzhou UniversityZhengzhouChina
- School of Life SciencesZhengzhou UniversityZhengzhouChina
| | - Bo Shao
- Department of Colorectal SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Academy of Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Luyang Zhao
- Academy of Medical SciencesZhengzhou UniversityZhengzhouChina
- Department of Basic MedicalAcademy of Medical Sciences of Zhengzhou UniversityZhengzhouChina
- Henan Academy of Medical and Pharmaceutical SciencesZhengzhou UniversityZhengzhouChina
| | - Quanbo Zhou
- Department of Colorectal SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Jinbo Liu
- Department of Colorectal SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Guixian Wang
- Department of Colorectal SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Weitang Yuan
- Department of Colorectal SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Zhenqiang Sun
- Department of Colorectal SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Academy of Medical SciencesZhengzhou UniversityZhengzhouChina
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43
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Georgel PT, Georgel P. Where Epigenetics Meets Food Intake: Their Interaction in the Development/Severity of Gout and Therapeutic Perspectives. Front Immunol 2021; 12:752359. [PMID: 34603340 PMCID: PMC8484966 DOI: 10.3389/fimmu.2021.752359] [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: 08/02/2021] [Accepted: 08/31/2021] [Indexed: 01/02/2023] Open
Abstract
Gout is the most frequent form of inflammatory arthritis in the world. Its prevalence is particularly elevated in specific geographical areas such as in the Oceania/Pacific region and is rising in the US, Europe, and Asia. Gout is a severe and painful disease, in which co-morbidities are responsible for a significant reduction in life expectancy. However, gout patients remain ostracized because the disease is still considered "self-inflicted", as a result of unhealthy lifestyle and excessive food and alcohol intake. While the etiology of gout flares is clearly associated with the presence of monosodium urate (MSU) crystal deposits, several major questions remain unanswered, such as the relationships between diet, hyperuricemia and gout flares or the mechanisms by which urate induces inflammation. Recent advances have identified gene variants associated with gout incidence. Nevertheless, genetic origins of gout combined to diet-related possible uric acid overproduction account for the symptoms in only a minor portion of patients. Hence, additional factors must be at play. Here, we review the impact of epigenetic mechanisms in which nutrients (such as ω-3 polyunsaturated fatty acids) and/or dietary-derived metabolites (like urate) trigger anti/pro-inflammatory responses that may participate in gout pathogenesis and severity. We propose that simple dietary regimens may be beneficial to complement therapeutic management or contribute to the prevention of flares in gout patients.
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Affiliation(s)
- Philippe T Georgel
- Department of Biological Sciences, Cell Differentiation and Development Center, Joan C. Edwards School of Medicine, Byrd Biotechnology Science Center, Marshall University, Huntington, WV, United States
| | - Philippe Georgel
- Laboratoire d'ImmunoRhumatologie Moléculaire, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR_S 1109, Institut thématique interdisciplinaire (ITI) de Médecine de Précision de Strasbourg, Transplantex NG, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France.,Unité de Recherche et d'Expertise Immunity and Inflammation, Institut Pasteur in New Caledonia, Pasteur Network, Nouméa, New Caledonia
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Konjar Š, Pavšič M, Veldhoen M. Regulation of Oxygen Homeostasis at the Intestinal Epithelial Barrier Site. Int J Mol Sci 2021; 22:ijms22179170. [PMID: 34502078 PMCID: PMC8431628 DOI: 10.3390/ijms22179170] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/28/2021] [Accepted: 08/19/2021] [Indexed: 12/25/2022] Open
Abstract
The unique biology of the intestinal epithelial barrier is linked to a low baseline oxygen pressure (pO2), characterised by a high rate of metabolites circulating through the intestinal blood and the presence of a steep oxygen gradient across the epithelial surface. These characteristics require tight regulation of oxygen homeostasis, achieved in part by hypoxia-inducible factor (HIF)-dependent signalling. Furthermore, intestinal epithelial cells (IEC) possess metabolic identities that are reflected in changes in mitochondrial function. In recent years, it has become widely accepted that oxygen metabolism is key to homeostasis at the mucosae. In addition, the gut has a vast and diverse microbial population, the microbiota. Microbiome–gut communication represents a dynamic exchange of mediators produced by bacterial and intestinal metabolism. The microbiome contributes to the maintenance of the hypoxic environment, which is critical for nutrient absorption, intestinal barrier function, and innate and/or adaptive immune responses in the gastrointestinal tract. In this review, we focus on oxygen homeostasis at the epithelial barrier site, how it is regulated by hypoxia and the microbiome, and how oxygen homeostasis at the epithelium is regulated in health and disease.
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Affiliation(s)
- Špela Konjar
- Department of Chemistry and Biochemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, SI-1000 Ljubljana, Slovenia;
- Instituto de Medicina Molecular, João Lobo Antunes, Faculdade de Medicina de Lisboa, 1649-028 Lisbon, Portugal;
- Correspondence:
| | - Miha Pavšič
- Department of Chemistry and Biochemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, SI-1000 Ljubljana, Slovenia;
| | - Marc Veldhoen
- Instituto de Medicina Molecular, João Lobo Antunes, Faculdade de Medicina de Lisboa, 1649-028 Lisbon, Portugal;
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Metagenomic analysis revealed the potential role of gut microbiome in gout. NPJ Biofilms Microbiomes 2021; 7:66. [PMID: 34373464 PMCID: PMC8352958 DOI: 10.1038/s41522-021-00235-2] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
Emerging evidence indicates an association between gut microbiome and arthritis diseases including gout. However, how and which gut bacteria affect host urate degradation and inflammation in gout remains unclear. Here we performed a metagenome analysis on 307 fecal samples from 102 gout patients and 86 healthy controls. Gout metagenomes significantly differed from those of healthy controls. The relative abundances of Prevotella, Fusobacterium, and Bacteroides were increased in gout, whereas those of Enterobacteriaceae and butyrate-producing species were decreased. Functionally, gout patients had greater abundances for genes in fructose, mannose metabolism and lipid A biosynthesis, and lower for genes in urate degradation and short chain fatty acid production. A three-pronged association between metagenomic species, functions and clinical parameters revealed that decreased abundances of species in Enterobacteriaceae were associated with reduced amino acid metabolism and environmental sensing, which together contribute to increased serum uric acid and C-reactive protein levels in gout. A random forest classifier based on three gut microbial genes showed high predictivity for gout in both discovery and validation cohorts (0.91 and 0.80 accuracy), with high specificity in the context of other chronic disorders. Longitudinal analysis showed that uric-acid-lowering and anti-inflammatory drugs partially restored gut microbiota after 24-week treatment. Comparative analysis with obesity, type 2 diabetes, ankylosing spondylitis and rheumatoid arthritis indicated that gout metagenomes were more similar to those of autoimmune than metabolic diseases. Our results suggest that gut dysbiosis was associated with dysregulated host urate degradation and systemic inflammation and may be used as non-invasive diagnostic markers for gout.
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Henson MA. Interrogation of the perturbed gut microbiota in gouty arthritis patients through in silico metabolic modeling. Eng Life Sci 2021; 21:489-501. [PMID: 34257630 PMCID: PMC8257998 DOI: 10.1002/elsc.202100003] [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: 01/09/2021] [Revised: 03/26/2021] [Accepted: 05/01/2021] [Indexed: 12/13/2022] Open
Abstract
Recent studies have shown perturbed gut microbiota associated with gouty arthritis, a metabolic disease characterized by an imbalance between uric acid production and excretion. To mechanistically investigate altered microbiota metabolism associated with gout disease, 16S rRNA gene amplicon sequence data from stool samples of gout patients and healthy controls were computationally analyzed through bacterial community metabolic models. Patient-specific community models constructed with the metagenomics modeling pipeline, mgPipe, were used to perform k-means clustering of samples according to their metabolic capabilities. The clustering analysis generated statistically significant partitioning of samples into a Bacteroides-dominated, high gout cluster and a Faecalibacterium-elevated, low gout cluster. The high gout cluster was predicted to allow elevated synthesis of the amino acids D-alanine and L-alanine and byproducts of branched-chain amino acid catabolism, while the low gout cluster allowed higher production of butyrate, the sulfur-containing amino acids L-cysteine and L-methionine, and the L-cysteine catabolic product H2S. By expanding the capabilities of mgPipe to provide taxa-level resolution of metabolite exchange rates, acetate, D-lactate and succinate exchanged from Bacteroides to Faecalibacterium were predicted to enhance butyrate production in the low gout cluster. Model predictions suggested that sulfur-containing amino acid metabolism generally and H2S more specifically could be novel gout disease markers.
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Affiliation(s)
- Michael A. Henson
- Department of Chemical Engineering and the Institute for Applied Life SciencesUniversity of MassachusettsAmherstMAUSA
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Lei Y, Tang L, Liu S, Hu S, Wu L, Liu Y, Yang M, Huang S, Tang X, Tang T, Zhao X, Vlodavsky I, Zeng S, Tang B, Yang S. Parabacteroides produces acetate to alleviate heparanase-exacerbated acute pancreatitis through reducing neutrophil infiltration. MICROBIOME 2021; 9:115. [PMID: 34016163 PMCID: PMC8138927 DOI: 10.1186/s40168-021-01065-2] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/31/2021] [Indexed: 05/15/2023]
Abstract
BACKGROUND The endoglycosidase heparanase which degrades heparan sulfate proteoglycans, exerts a pro-inflammatory mediator in various inflammatory disorders. However, the function and underlying mechanism of heparanase in acute pancreatitis remain poorly understood. Here, we investigated the interplay between heparanase and the gut microbiota in the development of acute pancreatitis. METHODS Acute pancreatitis was induced in wild-type and heparanase-transgenic mice by administration of caerulein. The differences in gut microbiota were analyzed by 16S ribosomal RNA sequencing. Antibiotic cocktail experiment, fecal microbiota transplantation, and cohousing experiments were used to assess the role of gut microbiota. RESULTS As compared with wild-type mice, acute pancreatitis was exacerbated in heparanase-transgenic mice. Moreover, the gut microbiota differed between heparanase-transgenic and wild-type mice. Heparanase exacerbated acute pancreatitis in a gut microbiota-dependent manner. Specially, the commensal Parabacteroides contributed most to distinguish the differences between wild-type and heparanase-transgenic mice. Administration of Parabacteroides alleviated acute pancreatitis in wild-type and heparanase-transgenic mice. In addition, Parabacteroides produced acetate to alleviate heparanase-exacerbated acute pancreatitis through reducing neutrophil infiltration. CONCLUSIONS The gut-pancreas axis played an important role in the development of acute pancreatitis and the acetate produced by Parabacteroides may be beneficial for acute pancreatitis treatment. Video abstract.
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Affiliation(s)
- Yuanyuan Lei
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Li Tang
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Shuang Liu
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Shiping Hu
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
- Department of Gastroenterology, The 983rd Hospital of Chinese PLA Joint Logistics Support Force, Tianjin, 300142, China
| | - Lingyi Wu
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
- Department of Gastroenterology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Yaojiang Liu
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Min Yang
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Shengjie Huang
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
- Department of Gastroenterology, Chongqing Medical University Affiliated Second Hospital, Chongqing, 400010, China
| | - Xuefeng Tang
- Department of Pathology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Tao Tang
- Laboratory Department, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Xiaoyan Zhao
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Israel Vlodavsky
- Technion Integrated Cancer Center (TICC), Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, 31096, Haifa, Israel
| | - Shuo Zeng
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China
| | - Bo Tang
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China.
| | - Shiming Yang
- Department of Gastroenterology, Third Military Medical University Second Affiliated Hospital, Chongqing, 400037, China.
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Yang M, Yang Y, He Q, Zhu P, Liu M, Xu J, Zhao M. Intestinal Microbiota-A Promising Target for Antiviral Therapy? Front Immunol 2021; 12:676232. [PMID: 34054866 PMCID: PMC8149780 DOI: 10.3389/fimmu.2021.676232] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/28/2021] [Indexed: 12/12/2022] Open
Abstract
The intestinal microbiota is thought to be an important biological barrier against enteric pathogens. Its depletion, however, also has curative effects against some viral infections, suggesting that different components of the intestinal microbiota can play both promoting and inhibitory roles depending on the type of viral infection. The two primary mechanisms by which the microbiota facilitates or inhibits viral invasion involve participation in the innate and adaptive immune responses and direct or indirect interaction with the virus, during which the abundance and composition of the intestinal microbiota might be changed by the virus. Oral administration of probiotics, faecal microbiota transplantation (FMT), and antibiotics are major therapeutic strategies for regulating intestinal microbiota balance. However, these three methods have shown limited curative effects in clinical trials. Therefore, the intestinal microbiota might represent a new and promising supplementary antiviral therapeutic target, and more efficient and safer methods for regulating the microbiota require deeper investigation. This review summarizes the latest research on the relationship among the intestinal microbiota, anti-viral immunity and viruses and the most commonly used methods for regulating the intestinal microbiota with the goal of providing new insight into the antiviral effects of the gut microbiota.
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Affiliation(s)
- Mengling Yang
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yang Yang
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Qingnan He
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Ping Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Mengqi Liu
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jiahao Xu
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Mingyi Zhao
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
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Wen X, Lou Y, Song S, He Z, Chen J, Xie Z, Shi X, Wen C, Shao T. Qu-Zhuo-Tong-Bi Decoction Alleviates Gouty Arthritis by Regulating Butyrate-Producing Bacteria in Mice. Front Pharmacol 2021; 11:610556. [PMID: 33603667 PMCID: PMC7884811 DOI: 10.3389/fphar.2020.610556] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 12/30/2020] [Indexed: 11/30/2022] Open
Abstract
Qu-zhuo-tong-bi decoction (QZTBD) is a traditional Chinese medicine prescription used to treat hyperuricemia and gout with no obvious adverse effects. However, the mechanism by which QZTBD treats gout has not been fully explored. Here, we investigated the effects of QZTBD on gouty arthritis and its therapeutic mechanism from the perspective of the gut microbiome. Our results demonstrated that QZTBD was effective for reducing serum uric acid level and attenuating paw edema and mechanical allodynia. QZTBD promoted the abundance of butyrate-producing bacteria and the production of SCFAs. Further study revealed that QZTBD restored the intestinal barrier function, modulated the expression of GPR43 and ABCG2, suppressed the activity of key glycolysis-related enzymes, and inhibited the generation of intestinal inflammatory factors. These findings suggested that QZTBD is an effective therapeutic drug for gouty arthritis. Butyrate-producing bacteria and its metabolites SCFAs might act as a potential target of QZTBD.
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Affiliation(s)
- Xianghui Wen
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yu Lou
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Siyue Song
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhixing He
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Juan Chen
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhijun Xie
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaowei Shi
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chengping Wen
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Tiejuan Shao
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
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50
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Sumbria D, Berber E, Rouse BT. Supplementing the Diet with Sodium Propionate Suppresses the Severity of Viral Immuno-inflammatory Lesions. J Virol 2021; 95:e02056-20. [PMID: 33208449 PMCID: PMC7851545 DOI: 10.1128/jvi.02056-20] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
This report evaluates a dietary manipulation approach to suppress the severity of ocular infections caused by herpes simplex virus infection. The virus causes chronic damage to the cornea that results from a T-cell-orchestrated inflammatory reaction to the infection. Lesion severity can be limited if cells with regulatory activity predominate over proinflammatory T cells and nonlymphoid inflammatory cells. In this report, we show that this outcome can be achieved by including the short-chain fatty acid (SCFA) salt sodium propionate (SP) in the drinking water. Animals given the SP supplement developed significantly fewer ocular lesions than those receiving no supplement. Corneas and lymphoid organs contained fewer CD4 Th1 and Th17 T cells, neutrophils, and macrophages than those of controls, but a higher frequency of regulatory T cells (Treg) was present. The inclusion of SP in cultures to induce CD4 T cell subsets in vitro reduced the magnitude of Th1 and Th17 responses but expanded Treg induction. Dietary manipulation was an effective approach to limit the severity of viral immuno-inflammatory lesions and may be worth exploring as a means to reduce the impact of herpetic lesions in humans.IMPORTANCE Herpetic lesions are a significant problem, and they are difficult to control with therapeutics. Our studies show that the severity of herpetic lesions in a mouse model can be diminished by changing the diet to include increased levels of SCFA, which act to inhibit the involvement of inflammatory T cells. We suggest that changing the diet to include higher levels of SCFA might be a useful approach to reducing the impact of recurrent herpetic lesions in humans.
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MESH Headings
- Animals
- Cells, Cultured
- Cornea/immunology
- Cornea/virology
- Dietary Supplements
- Fatty Acids, Volatile/administration & dosage
- Herpesvirus 1, Human/immunology
- Keratitis, Herpetic/diet therapy
- Keratitis, Herpetic/immunology
- Keratitis, Herpetic/virology
- Macrophages/cytology
- Mice, Inbred C57BL
- Mice, Knockout
- Neutrophils/cytology
- Propionates/administration & dosage
- T-Lymphocytes, Helper-Inducer/cytology
- T-Lymphocytes, Regulatory/cytology
- Mice
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Affiliation(s)
- Deepak Sumbria
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee, USA
| | - Engin Berber
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee, USA
- Department of Virology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - Barry T Rouse
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee, USA
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