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Li Y, Li J, Li S, Zhou S, Yang J, Xu K, Chen Y. Exploring the gut microbiota's crucial role in acute pancreatitis and the novel therapeutic potential of derived extracellular vesicles. Front Pharmacol 2024; 15:1437894. [PMID: 39130638 PMCID: PMC11310017 DOI: 10.3389/fphar.2024.1437894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 07/15/2024] [Indexed: 08/13/2024] Open
Abstract
During acute pancreatitis, intestinal permeability increases due to intestinal motility dysfunction, microcirculatory disorders, and ischemia-reperfusion injury, and disturbances in the intestinal flora make bacterial translocation easier, which consequently leads to local or systemic complications such as pancreatic and peripancreatic necrotic infections, acute lung injury, systemic inflammatory response syndrome, and multiple organ dysfunction syndrome. Therefore, adjusting intestinal ecosystem balance may be a promising approach to control local and systemic complications of acute pancreatitis. In this paper, we reviewed the causes and manifestations of intestinal flora disorders during acute pancreatitis and their complications, focused on the reduction of acute pancreatitis and its complications by adjusting the intestinal microbial balance, and innovatively proposed the treatment of acute pancreatitis and its complications by gut microbiota-derived extracellular vesicles.
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Affiliation(s)
- Yijie Li
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jie Li
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Sen Li
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shumin Zhou
- Wenzhou Institute of Shanghai University, Wenzhou, China
| | - Jiahua Yang
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ke Xu
- Wenzhou Institute of Shanghai University, Wenzhou, China
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Yafeng Chen
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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2
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Chen H, Xu Z, Zhao H, Cao J, Wang R, He J, Nie R, Jia J, Yuan S, Li Y, Liu Z, Zhang X, Ha L, Xu X, Li T. Global research states and trends of micro RNA in irritable bowel syndrome: a bibliometric analysis. Clin Exp Med 2024; 24:149. [PMID: 38967892 PMCID: PMC11226481 DOI: 10.1007/s10238-024-01396-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 06/07/2024] [Indexed: 07/06/2024]
Abstract
Irritable bowel syndrome (IBS) is a common chronic gastrointestinal disorder, but its diagnosis and treatment remain obscure. Non-coding RNAs (ncRNAs), as potential biomarkers, have attracted increasing attention in digestive diseases. Here, we present a comprehensive research status, development trends, and valuable insights in this subject area. The literature search was performed using Web of Science Core Collection. VOSviewer 1.6.20, Citespace 6.2.R4, and Microsoft Excel 2021 were used for bibliometric analysis. A total of 124 articles were included in the analysis. Overall, publication patterns fluctuated. Globally, People's Republic of China, the USA, and Germany were the top three contributors of publications. Guangzhou University of Chinese Medicine, University of California, Mayo Clinic, and University of California, Los Angeles contributed the highest number of publications. The pathways and specific mechanisms by which ncRNAs regulate transcription and translation and thus regulate the pathophysiological processes of IBS are the main research hotspots in this field. We found that microRNA (miRNAs) are intricately involved in the regulation of key pathologies such as viscera sensitivity, intestinal permeability, intestinal mucosal barrier, immunoinflammatory response, and brain-gut axis in the IBS, and these topics have garnered significant attention in research community. Notably, microecological disorders are also associated with IBS pathogenesis, and ncRNA may play an important role in the interactions between host and intestinal flora. This is the first bibliometric study to comprehensively summarize the research hotspots and trends related to IBS and ncRNAs (especially miRNAs). Our findings will help understand the role of ncRNAs in IBS and provide guidance to future studies.
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Affiliation(s)
- Hongxiu Chen
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China
| | - Zhifang Xu
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, No. 10, Poyang Lake Road, West District, Tuanbo New Town, Jinghai District, Tianjin, 301617, People's Republic of China
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, No. 10, Poyang Lake Road, West District, Tuanbo New Town, Jinghai District, Tianjin, 301617, People's Republic of China
| | - Honggang Zhao
- Shenzhen Hospital of Integrated Chinese and Western Medicine, 528 Xinsha Road, Shajing Street, Baoan District, Shenzhen, People's Republic of China
| | - Jiazhen Cao
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China
| | - Rui Wang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, No. 10, Poyang Lake Road, West District, Tuanbo New Town, Jinghai District, Tianjin, 301617, People's Republic of China
| | - Jing He
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China
| | - Ru Nie
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China
| | - Jialin Jia
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China
| | - Shuting Yuan
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China
| | - Yonghong Li
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China
| | - Zhicheng Liu
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China
| | - Xinyu Zhang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, No. 10, Poyang Lake Road, West District, Tuanbo New Town, Jinghai District, Tianjin, 301617, People's Republic of China
| | - Lijuan Ha
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China.
| | - Xiaoru Xu
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China.
| | - Tie Li
- College of Acupuncture and Tuina, Changchun University of Chinese Medicine, No. 1035, Boshuo Rd, Jingyue Economic Development District, Changchun, 130117, People's Republic of China.
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Tao S, Fan J, Li J, Wu Z, Yao Y, Wang Z, Wu Y, Liu X, Xiao Y, Wei H. Extracellular vesicles derived from Lactobacillus johnsonii promote gut barrier homeostasis by enhancing M2 macrophage polarization. J Adv Res 2024:S2090-1232(24)00111-5. [PMID: 38508446 DOI: 10.1016/j.jare.2024.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 02/19/2024] [Accepted: 03/16/2024] [Indexed: 03/22/2024] Open
Abstract
INTRODUCTION Diarrheic disease is a common intestinal health problem worldwide, causing great suffering to humans and animals. Precise manipulation strategies based on probiotics to combat diarrheic diseases have not been fully developed. OBJECTIVES The aim of this study was to investigate the molecular mechanisms by which probiotics manipulate macrophage against diarrheic disease. METHODS Metagenome reveals gut microbiome profiles of healthy and diarrheic piglets. Fecal microbial transplantation (FMT) was employed to explore the causal relationship between gut microbes and diarrhea. The protective role of probiotics and their derived extracellular vesicles (EVs) was investigated in ETEC K88-infected mice. Macrophage depletion was performed to assess the role of macrophages in EVs against diarrhea. Execution of in vitro cell co-culture and transcriptome analyses elucidated the molecular mechanisms by which EVs modulate the macrophage and intestinal epithelial barrier. RESULTS Escherichia coli was enriched in weaned diarrheic piglets, while Lactobacillus johnsonii (L. john) showed a negative correlation with Escherichia coli. The transmission of diarrheic illness symptoms was achieved by transferring fecal microbiota, but not metabolites, from diarrheic pigs to germ-free (GF) mice. L. john's intervention prevented the transmission of disease phenotypes from diarrheic piglets to GF mice. L. john also reduces the gut inflammation induced by ETEC K88. The EVs secreted by L. john demonstrated enhanced efficacy in mitigating the adverse impacts induced by ETEC K88 through the modulation of macrophage phenotype. In vitro experiments have revealed that EVs activate M2 macrophages in a manner that shuts down ERK, thereby inhibiting NLRP3 activation in intestinal epithelial cells. CONCLUSION Our results reveal that intestinal microbiota drives the onset of diarrheic disease and that probiotic-derived EVs ameliorate diarrheic disease symptoms by modulating macrophage phenotypes. These findings can enhance the advancement of innovative therapeutic approaches for diarrheic conditions based on probiotic-derived EVs.
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Affiliation(s)
- Shiyu Tao
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jinping Fan
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jingjing Li
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhifeng Wu
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yong Yao
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhenyu Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Yujun Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Xiangdong Liu
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yingping Xiao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Hong Wei
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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Guo Q, Gao Z, Zhao L, Wang H, Luo Z, Vandeputte D, He L, Li M, Di S, Liu Y, Hou J, Jiang X, Zhu H, Tong X. Multiomics Analyses With Stool-Type Stratification in Patient Cohorts and Blautia Identification as a Potential Bacterial Modulator in Type 2 Diabetes Mellitus. Diabetes 2024; 73:511-527. [PMID: 38079576 PMCID: PMC10882154 DOI: 10.2337/db23-0447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 12/06/2023] [Indexed: 02/22/2024]
Abstract
Heterogeneity in host and gut microbiota hampers microbial precision intervention of type 2 diabetes mellitus (T2DM). Here, we investigated novel features for patient stratification and bacterial modulators for intervention, using cross-sectional patient cohorts and animal experiments. We collected stool, blood, and urine samples from 103 patients with recent-onset T2DM and 25 healthy control subjects (HCs), performed gut microbial composition and metabolite profiling, and combined it with host transcriptome, metabolome, cytokine, and clinical data. Stool type (dry or loose stool), a feature of the stool microenvironment recently explored in microbiome studies, was used for stratification of patients with T2DM as it explained most of the variation in the multiomics data set among all clinical parameters in our covariate analysis. T2DM with dry stool (DM-DS) and loose stool (DM-LS) were clearly differentiated from HC and each other by LightGBM models, optimal among multiple machine learning models. Compared with DM-DS, DM-LS exhibited discordant gut microbial taxonomic and functional profiles, severe host metabolic disorder, and excessive insulin secretion. Further cross-measurement association analysis linked the differential microbial profiles, in particular Blautia abundances, to T2DM phenotypes in our stratified multiomics data set. Notably, oral supplementation of Blautia to T2DM mice induced inhibitory effects on lipid accumulation, weight gain, and blood glucose elevation with simultaneous modulation of gut bacterial composition, revealing the therapeutic potential of Blautia. Our study highlights the clinical implications of stool microenvironment stratification and Blautia supplementation in T2DM, offering promising prospects for microbial precision treatment of metabolic diseases. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Qian Guo
- Department of Biomedical Engineering, College of Future Technology, and Center for Quantitative Biology, Peking University, Beijing, China
| | - Zezheng Gao
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing
| | - Linhua Zhao
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing
| | - Han Wang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing
| | - Zhen Luo
- Infinitus (China) Company Ltd., Jiangmen, China
| | - Doris Vandeputte
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY
- Center for Microbiology, VIB-KU Leuven, Leuven, Belgium
| | - Lisha He
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mo Li
- Department of Biomedical Engineering, College of Future Technology, and Center for Quantitative Biology, Peking University, Beijing, China
| | - Sha Di
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing
| | - Yanwen Liu
- Department of Endocrinology, Zhengzhou Traditional Chinese Medicine Hospital, Zhengzhou, China
| | - Jiaheng Hou
- Department of Biomedical Engineering, College of Future Technology, and Center for Quantitative Biology, Peking University, Beijing, China
| | - Xiaoqing Jiang
- Department of Biomedical Engineering, College of Future Technology, and Center for Quantitative Biology, Peking University, Beijing, China
| | - Huaiqiu Zhu
- Department of Biomedical Engineering, College of Future Technology, and Center for Quantitative Biology, Peking University, Beijing, China
| | - Xiaolin Tong
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing
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Sun Y, Song J, Lan X, Ma F, Jiang M, Jiang C. Calcium-Sensitive Receptors Alters Intestinal Microbiota Metabolites Especially SCFAs and Ameliorates Intestinal Barrier Damage in Neonatal Rat Endotoxemia. Infect Drug Resist 2023; 16:5707-5717. [PMID: 37667808 PMCID: PMC10475303 DOI: 10.2147/idr.s420689] [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: 05/10/2023] [Accepted: 08/17/2023] [Indexed: 09/06/2023] Open
Abstract
Purpose The calcium-sensing receptor (CaSR) acts as a major modulator of tissue responses related to calcium homeostasis and expresses highly in the mammalian intestine. Endotoxemia tends to impair intestinal barrier function and poses significant obstacles in clinical treatment. This work is designed to decipher whether CaSR can protect lipopolysaccharide (LPS)-induced intestinal barrier dysfunction in neonatal rats by targeting intestinal metabolites. Patient and Methods In this study, we utilized gas chromatography (GC) combined with liquid chromatography-mass spectrometry (LC-MS) to quantitatively analyze SCFAs and metabolites in fecal samples of 24 neonatal rats with LPS induced endotoxemia. Results Our results showed that CaSR alleviated endotoxin damage to the intestinal tight junction structure and upregulated the levels of butyric acid, propionic acid, valeric acid, and isovaleric acid in short-chain fatty acids (SCFAs). Non-targeted metabolomics analysis indicated that CaSR improved intestinal metabolic disorders by regulating glycerophospholipid metabolism, α-linolenic acid metabolism, as well as sphingolipids metabolism. Conclusion CaSR can alter intestinal microbiota metabolites, especially SCFAs, and improve intestinal barrier damage in neonatal rat endotoxemia.
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Affiliation(s)
- Yan Sun
- Department of Neonatology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, People’s Republic of China
| | - Jiayu Song
- Department of Neonatology, Zhuhai Women and Children’s Hospital, Zhuhai, Guangdong, 519060, People’s Republic of China
| | - Xue Lan
- Department of Neonatology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, People’s Republic of China
| | - Fei Ma
- Department of Neonatology, Zhuhai Women and Children’s Hospital, Zhuhai, Guangdong, 519060, People’s Republic of China
| | - Mingyu Jiang
- Department of Pediatrics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, People’s Republic of China
| | - Chunming Jiang
- Department of Neonatology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, People’s Republic of China
- Department of Neonatology, Zhuhai Women and Children’s Hospital, Zhuhai, Guangdong, 519060, People’s Republic of China
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Tagliamonte S, Barone Lumaga R, De Filippis F, Valentino V, Ferracane R, Guerville M, Gandolfi I, Barbara G, Ercolini D, Vitaglione P. Milk protein digestion and the gut microbiome influence gastrointestinal discomfort after cow milk consumption in healthy subjects. Food Res Int 2023; 170:112953. [PMID: 37316045 DOI: 10.1016/j.foodres.2023.112953] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 04/07/2023] [Accepted: 05/10/2023] [Indexed: 06/16/2023]
Abstract
Many healthy people suffer from milk-related gastrointestinal discomfort (GID) despite not being lactose intolerant; the mechanisms underpinning such condition are unknown. This study aimed to explore milk protein digestion and related physiological responses (primary outcome), gut microbiome and gut permeability in 19 lactose-tolerant healthy nonhabitual milk consumers [NHMCs] reporting GID after consuming cow milk compared to 20 habitual milk consumers [HMCs] without GID. NHMCs and HMCs participated in a milk-load (250 mL) test, underwent blood sample collection at 6 time points over 6 h after milk consumption and collected urine samples and GID self-reports over 24 h. We measured the concentrations of 31 milk-derived bioactive peptides (BAPs), 20 amino acids, 4 hormones, 5 endocannabinoid system mediators, glucose and the dipeptidyl peptidase-IV (DPPIV) activity in blood and indoxyl sulfate in urine samples. Subjects also participated in a gut permeability test and delivered feces sample for gut microbiome analysis. Results showed that, compared to HMCs, milk consumption in NHMCs, along with GID, elicited a slower and lower increase in circulating BAPs, lower responses of ghrelin, insulin, and anandamide, a higher glucose response and serum DPPIV activity. The gut permeability of the two groups was similar, while the habitual diet, which was lower in dairy products and higher in the dietary-fibre-to-protein ratio in NHMCs, possibly shaped the gut microbiome; NHMCs exhibited lower abundance of Bifidobacteria, higher abundance of Prevotella and lower abundance of protease-coding genes, which may have reduced protein digestion, as evidenced by lower urinary excretion of indoxyl sulfate. In conclusion, the findings showed that a less efficient digestion of milk proteins, supported by a lower proteolytic capability of the gut microbiome, may explain GID in healthy people after milk consumption.
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Affiliation(s)
- Silvia Tagliamonte
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
| | - Roberta Barone Lumaga
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
| | - Francesca De Filippis
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; Task Force on Microbiome Studies, University of Naples Federico II, 80134 Naples, Italy
| | - Vincenzo Valentino
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; Task Force on Microbiome Studies, University of Naples Federico II, 80134 Naples, Italy
| | - Rosalia Ferracane
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
| | - Mathilde Guerville
- Nutrition Department, Lactalis Research & Development, 35240 Retiers, France
| | - Ivana Gandolfi
- Nutrition Department, Lactalis Research & Development, 43038 Sala Baganza, Italy
| | - Giovanni Barbara
- Dipartimento di Scienze Mediche e Chirurgiche, University of Bologna, 40138 Bologna, Italy
| | - Danilo Ercolini
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; Task Force on Microbiome Studies, University of Naples Federico II, 80134 Naples, Italy
| | - Paola Vitaglione
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; Task Force on Microbiome Studies, University of Naples Federico II, 80134 Naples, Italy.
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Tang B, Hu Y, Chen J, Su C, Zhang Q, Huang C. Oral and fecal microbiota in patients with diarrheal irritable bowel syndrome. Heliyon 2023; 9:e13114. [PMID: 36711269 PMCID: PMC9880401 DOI: 10.1016/j.heliyon.2023.e13114] [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: 10/27/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/21/2023] Open
Abstract
Background This study aimed at investigating the characteristics and correlation between oral (tongue coating) and fecal microbiota in patients with diarrheal irritable bowel syndrome (IBS-D). Methods Fifty-two IBS-D patients were chosen, with ten healthy volunteers serving as the normal control group. Tongue coating samples and fecal samples of subjects were sequenced for the 16S rRNA gene (V4-V5). Bioinformatics analysis was done on the test data to investigate oral and fecal microbiota composition characteristics in IBS-D patients. Results The microbial richness of tongue coating in IBS-D group was lower than that in the normal control group (P < 0.05). The beta diversity of tongue coating microbiota and fecal microbiota was significantly different in the IBS-D group compared to the normal control group (P < 0.05). Pseudomonadales (Pseudomonadaceae and Pseudomonas), Moraxellaceae, Parvimonas, Peptostreptococcus, and Alloprevotella were considerably high in number the tongue coating samples of the IBS-D group in comparison to the normal control group. Similarly, the fecal samples from the IBS-D group were significantly enriched in Alphaproteobacteria, Pseudomonadales (Pseudomonadaceae and Pseudomonas), Acidaminococcaceae, Phascolarctobacterium, Alloprevotella, and Escherichia compared to the normal control group. Conclusions The oral and fecal microbiotas of IBS-D patients differ from those of the control group; hence studying IBS-D from the perspective of the oral-gut microbiome axis is an interesting research avenue.
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Affiliation(s)
- Binbin Tang
- Second Outpatient Department, Tongde Hospital of Zhejiang Province, Hangzhou, China,Clinical College of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Yunlian Hu
- Department of Gastroenterology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China,First Clinical College, Hubei University of Chinese Medicine, Wuhan, China
| | - Jianhui Chen
- Department of Gastroenterology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China,First Clinical College, Hubei University of Chinese Medicine, Wuhan, China,Corresponding author. Department of Gastroenterology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China.
| | - Chengxia Su
- Department of Gastroenterology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China,First Clinical College, Hubei University of Chinese Medicine, Wuhan, China,Corresponding author. First Clinical College, Hubei University of Chinese Medicine, Wuhan, China.
| | - Qian Zhang
- Department of Gastroenterology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China,First Clinical College, Hubei University of Chinese Medicine, Wuhan, China
| | - Chaoqun Huang
- Department of Gastroenterology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China,First Clinical College, Hubei University of Chinese Medicine, Wuhan, China
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8
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Naseri K, Dabiri H, Olfatifar M, Shahrbaf MA, Yadegar A, Soheilian-Khorzoghi M, Sadeghi A, Saadati S, Rostami-Nejad M, Verma AK, Zali MR. Evaluation of gut microbiota of iranian patients with celiac disease, non-celiac wheat sensitivity, and irritable bowel syndrome: are there any similarities? BMC Gastroenterol 2023; 23:15. [PMID: 36647022 PMCID: PMC9841652 DOI: 10.1186/s12876-023-02649-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND AND AIMS Individuals with celiac disease (CD), non-celiac wheat sensitivity (NCWS), and irritable bowel syndrome (IBS), show overlapping clinical symptoms and experience gut dysbiosis. A limited number of studies so far compared the gut microbiota among these intestinal conditions. This study aimed to investigate the similarities in the gut microbiota among patients with CD, NCWS, and IBS in comparison to healthy controls (HC). MATERIALS AND METHODS In this prospective study, in total 72 adult subjects, including CD (n = 15), NCWS (n = 12), IBS (n = 30), and HC (n = 15) were recruited. Fecal samples were collected from each individual. A quantitative real-time PCR (qPCR) test using 16S ribosomal RNA was conducted on stool samples to assess the relative abundance of Firmicutes, Bacteroidetes, Bifidobacterium spp., and Lactobacillus spp. RESULTS In all groups, Firmicutes and Lactobacillus spp. had the highest and lowest relative abundance respectively. The phylum Firmicutes had a higher relative abundance in CD patients than other groups. On the other hand, the phylum Bacteroidetes had the highest relative abundance among healthy subjects but the lowest in patients with NCWS. The relative abundance of Bifidobacterium spp. was lower in subjects with CD (P = 0.035) and IBS (P = 0.001) compared to the HCs. Also, the alteration of Firmicutes to Bacteroidetes ratio (F/B ratio) was statistically significant in NCWS and CD patients compared to the HCs (P = 0.05). CONCLUSION The principal coordinate analysis (PCoA), as a powerful multivariate analysis, suggested that the investigated gut microbial profile of patients with IBS and NCWS share more similarities to the HCs. In contrast, patients with CD had the most dissimilarity compared to the other groups in the context of the studied gut microbiota.
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Affiliation(s)
- Kaveh Naseri
- grid.1017.70000 0001 2163 3550School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC Australia
| | - Hossein Dabiri
- grid.411600.2Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Meysam Olfatifar
- grid.444830.f0000 0004 0384 871XGastroenterology and Hepatology Diseases Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Mohammad Amin Shahrbaf
- grid.411600.2Celiac Disease Department, Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Yadegar
- grid.411600.2Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mona Soheilian-Khorzoghi
- grid.411600.2Celiac Disease Department, Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Sadeghi
- grid.411600.2Celiac Disease Department, Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeede Saadati
- grid.411600.2Celiac Disease Department, Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Rostami-Nejad
- grid.411600.2Celiac Disease Department, Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Anil K. Verma
- grid.7010.60000 0001 1017 3210Celiac Disease Research Laboratory, Department of Pediatrics, Università Politecnica Delle Marche, 60123 Ancona, Italy
| | - Mohammad Reza Zali
- grid.411600.2Celiac Disease Department, Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Li M, Wang C, Guo Q, Xu C, Xie Z, Tan J, Wu S, Wang P, Guo J, Fang Z, Zhu S, Duan L, Jiang X, Zhu H. More Positive or More Negative? Metagenomic Analysis Reveals Roles of Virome in Human Disease-Related Gut Microbiome. Front Cell Infect Microbiol 2022; 12:846063. [PMID: 35493727 PMCID: PMC9040671 DOI: 10.3389/fcimb.2022.846063] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/07/2022] [Indexed: 12/04/2022] Open
Abstract
Viruses are increasingly viewed as vital components of the human gut microbiota, while their roles in health and diseases remain incompletely understood. Here, we first sequenced and analyzed the 37 metagenomic and 18 host metabolomic samples related to irritable bowel syndrome (IBS) and found that some shifted viruses between IBS and controls covaried with shifted bacteria and metabolites. Especially, phages that infect beneficial lactic acid bacteria depleted in IBS covaried with their hosts. We also retrieved public whole-genome metagenomic datasets of another four diseases (type 2 diabetes, Crohn’s disease, colorectal cancer, and liver cirrhosis), totaling 438 samples including IBS, and performed uniform analysis of the gut viruses in diseases. By constructing disease-specific co-occurrence networks, we found viruses actively interacting with bacteria, negatively correlated with possible dysbiosis-related and inflammation-mediating bacteria, increasing the connectivity between bacteria modules, and contributing to the robustness of the networks. Functional enrichment analysis showed that phages interact with bacteria through predation or expressing genes involved in the transporter and secretion system, metabolic enzymes, etc. We further built a viral database to facilitate systematic functional classification and explored the functions of viral genes on interacting with bacteria. Our analyses provided a systematic view of the gut virome in the disease-related microbial community and suggested possible positive roles of viruses concerning gut health.
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Affiliation(s)
- Mo Li
- Peking University-Tsinghua University-National Institute of Biological Sciences (PTN) Joint Ph.D. Program, School of Life Sciences, Peking University, Beijing, China
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
| | - Chunhui Wang
- Peking University-Tsinghua University-National Institute of Biological Sciences (PTN) Joint Ph.D. Program, School of Life Sciences, Peking University, Beijing, China
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
| | - Qian Guo
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
- Center for Quantitative Biology, Peking University, Beijing, China
| | - Congmin Xu
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
| | - Zhongjie Xie
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
| | - Jie Tan
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
- Center for Quantitative Biology, Peking University, Beijing, China
| | - Shufang Wu
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
- Center for Quantitative Biology, Peking University, Beijing, China
| | - Peihong Wang
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
| | - Jinyuan Guo
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
| | - Zhencheng Fang
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
- Center for Quantitative Biology, Peking University, Beijing, China
| | - Shiwei Zhu
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Liping Duan
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Xiaoqing Jiang
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
- Center for Quantitative Biology, Peking University, Beijing, China
- *Correspondence: Huaiqiu Zhu, ; Xiaoqing Jiang,
| | - Huaiqiu Zhu
- Peking University-Tsinghua University-National Institute of Biological Sciences (PTN) Joint Ph.D. Program, School of Life Sciences, Peking University, Beijing, China
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, China
- Center for Quantitative Biology, Peking University, Beijing, China
- Institute of Medical Technology, Peking University Health Science Center, Beijing, China
- *Correspondence: Huaiqiu Zhu, ; Xiaoqing Jiang,
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Guo Q, Ni C, Li L, Li M, Jiang X, Gao L, Zhu H, Song J. Integrated Traditional Chinese Medicine Improves Functional Outcome in Acute Ischemic Stroke: From Clinic to Mechanism Exploration With Gut Microbiota. Front Cell Infect Microbiol 2022; 12:827129. [PMID: 35223549 PMCID: PMC8877419 DOI: 10.3389/fcimb.2022.827129] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/14/2022] [Indexed: 12/11/2022] Open
Abstract
As a life-threatening disease, stroke is the leading cause of death and also induces adult disability worldwide. To investigate the efficacy of the integrated traditional Chinese medicine (ITCM) on the therapeutic effects of acute ischemic stroke (AIS) patients, we enrolled 26 patients in the ITCM [Tanhuo decoction (THD) + Western medicine (WM)] group and 23 in the WM group. Thirty healthy people were also included in the healthy control (HC) group. ITCM achieved better functional outcomes than WM, including significant reduction of the phlegm-heat syndrome and neurological impairment, and improvement of ability. These facts were observed in different pretreatment gut enterotypes. In this paper, we collected the stool samples of all participants and analyzed the 16S rRNA sequence data of the gut microbiota. We identified two enterotypes (Type-A and Type-B) of the gut microbial community in AIS samples before treatment. Compared to Type-B, Type-A was characterized by a high proportion of Bacteroides, relatively high diversity, and severe functional damage. In the ITCM treatment group, we observed better clinical efficacy and positive alterations in microbial diversity and beneficial bacterial abundance, and the effect of approaching healthy people’s gut microbiota, regardless of gut enterotypes identified in pretreatment. Furthermore, we detected several gut microbiota as potential therapeutic targets of ITCM treatment by analyzing the correlations between bacterial abundance alterations and functional outcomes, where Dorea with the strongest correlation was known to produce anti-inflammatory metabolite and negatively linked to trimethylamine-N-oxide (TMAO), a biomarker of AIS. This study analyzed clinical and gut microbial data and revealed the possibility of a broad application independent of the enterotypes, as well as the therapeutic targets of the ITCM in treating AIS patients with phlegm-heat syndrome.
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Affiliation(s)
- Qian Guo
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- State Key Laboratory for Turbulence and Complex Systems, Department of Biomedical Engineering, College of Future Technology and Center for Quantitative Biology, Peking University, Beijing, China
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, United States
| | - Can Ni
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- State Key Laboratory for Turbulence and Complex Systems, Department of Biomedical Engineering, College of Future Technology and Center for Quantitative Biology, Peking University, Beijing, China
| | - Linjing Li
- Department of Neurology, Beijing Chaoyang Integrative Medicine Emergency Medical Center, Beijing, China
| | - Mo Li
- State Key Laboratory for Turbulence and Complex Systems, Department of Biomedical Engineering, College of Future Technology and Center for Quantitative Biology, Peking University, Beijing, China
| | - Xiaoqing Jiang
- State Key Laboratory for Turbulence and Complex Systems, Department of Biomedical Engineering, College of Future Technology and Center for Quantitative Biology, Peking University, Beijing, China
| | - Li Gao
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Huaiqiu Zhu
- State Key Laboratory for Turbulence and Complex Systems, Department of Biomedical Engineering, College of Future Technology and Center for Quantitative Biology, Peking University, Beijing, China
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, United States
- *Correspondence: Juexian Song, ; Huaiqiu Zhu,
| | - Juexian Song
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- *Correspondence: Juexian Song, ; Huaiqiu Zhu,
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11
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Wen H, Li Q, Lu N, Su YY, Ma PH, Zhang MX. Intestinal flora and pancreatitis: Present and future. Shijie Huaren Xiaohua Zazhi 2021; 29:1269-1275. [DOI: 10.11569/wcjd.v29.i22.1269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The role of intestinal flora in human health and diseases has attracted more and more attention. At present, there have been some reports on the relationship between intestinal flora and pancreatitis. These reports reveal that intestinal flora plays some important roles in the occurrence and development of pancreatitis. The specific mechanisms of action are unclear, but there is preliminary consensus that intestinal microbiome dysregulation promotes inflammatory changes in the pancreas. This paper summarizes the correlation between intestinal flora and pancreatitis, in order to provide some references and ideas for further research.
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Affiliation(s)
- Hua Wen
- Xi'an Medical University, Xi'an 710000, Shaanxi Province, China,Department of Gastroenterology, The First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, Shaanxi Province, China
| | - Qian Li
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, Shaanxi Province, China
| | - Ning Lu
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, Shaanxi Province, China
| | - Yuan-Yuan Su
- Xi'an Medical University, Xi'an 710000, Shaanxi Province, China,Department of Gastroenterology, The First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, Shaanxi Province, China
| | - Pei-Han Ma
- The Second Clinical Medical College, Shaanxi University of Traditional Chinese Medicine, Xianyang 712046, Shaanxi Province, China
| | - Ming-Xin Zhang
- The Second Clinical Medical College, Shaanxi University of Traditional Chinese Medicine, Xianyang 712046, Shaanxi Province, China
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Abstract
Gut microbiota plays a vital role in human health. The number of microorganisms inhabiting the gastrointestinal (GI) tract has been estimated to exceed 1013. The dominant genera in the human intestine are Firmicutes (more than 180 species of Lactobacillus), Actinobacteria (among others the Bifidobacteriae), Bacteroidetes (the most important is B. fragilis) and Proteobacteria (E. coli, Salmonella, Yersinia, Shigella, Vibrio, Haemophilus, etc.), but the composition of the flora varies individually, as well as in relation to factors such as host genetics, stress, diet, antibiotics and early childhood experiences. Irritable bowel syndrome (IBS) is one of the most common functional gastrointestinal disorders (FGIDs), which has now been renamed disorders of gut-brain interaction, which affect a large number of people worldwide. It is characterized by abdominal pain and altered bowel habits in the absence of obvious anatomic or physiologic abnormalities. It poses a negative economic impact to the global health care system in addition to reducing the quality of life in patients. The pathophysiology of IBS is not fully understood. In IBS subjects gut microbiota relative to healthy controls was observed with an increase in Enterobacteriaceae, Ruminococcus, Clostridium, Dorea species and a decrease of Lactobacillus, Bifidobacterium, and Faecalibacterium species. IBS with diarrhea predominance (IBS-D) IBS with mixed bowel habits (IBS-M) share similarities in the microbial profile. Recent studies suggest that perturbations within "brain-gut-microbiota" axis may lead to IBS development. The aim of this review was to highlight the potential role of gut microbiota on pathophysiological mechanisms underlying IBS.
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Affiliation(s)
- Cristina M Sabo
- Second Department of Internal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania -
| | - Dan L Dumitrascu
- Second Department of Internal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Patel BK, Patel KH, Bhatia M, Iyer SG, Madhavan K, Moochhala SM. Gut microbiome in acute pancreatitis: A review based on current literature. World J Gastroenterol 2021; 27:5019-5036. [PMID: 34497432 PMCID: PMC8384740 DOI: 10.3748/wjg.v27.i30.5019] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/04/2021] [Accepted: 06/23/2021] [Indexed: 02/06/2023] Open
Abstract
The gut microbiome is a complex microbial community, recognized for its potential role in physiology, health, and disease. The available evidence supports the role of gut dysbiosis in pancreatic disorders, including acute pancreatitis (AP). In AP, the presence of gut barrier damage resulting in increased mucosal permeability may lead to translocation of intestinal bacteria, necrosis of pancreatic and peripancreatic tissue, and infection, often accompanied by multiple organ dysfunction syndrome. Preserving gut microbial homeostasis may reduce the systemic effects of AP. A growing body of evidence suggests the possible involvement of the gut microbiome in various pancreatic diseases, including AP. This review discusses the possible role of the gut microbiome in AP. It highlights AP treatment and supplementation with prebiotics, synbiotics, and probiotics to maintain gastrointestinal microbial balance and effectively reduce hospitalization, morbidity and mortality in an early phase. It also addresses novel therapeutic areas in the gut microbiome, personalized treatment, and provides a roadmap of human microbial contributions to AP that have potential clinical benefit.
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Affiliation(s)
- Bharati Kadamb Patel
- Department of Surgery, National University of Singapore, Singapore 119228, Singapore
| | - Kadamb H Patel
- School of Applied Sciences, Temasek Polytechnic, Singapore 529757, Singapore
| | - Madhav Bhatia
- Department of Pathology, University of Otago, Christchurch 8140, New Zealand
| | - Shridhar Ganpati Iyer
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- National University Hospital, National University of Singapore, Singapore 119228, Singapore
| | - Krishnakumar Madhavan
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- National University Hospital, National University of Singapore, Singapore 119228, Singapore
| | - Shabbir M Moochhala
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
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Yuan X, Chang C, Chen X, Li K. Emerging trends and focus of human gastrointestinal microbiome research from 2010-2021: a visualized study. J Transl Med 2021; 19:327. [PMID: 34332587 PMCID: PMC8325541 DOI: 10.1186/s12967-021-03009-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/23/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The gastrointestinal microbiome is an important component of the human body and is closely related to human health and disease. This study describes the hotspots of the human gastrointestinal microbiome research and its evolution in the past decade, evaluates the scientific cooperation network, and finally predicts the field's future development trend using bibliometric analysis and a visualized study. METHODS We searched the original articles from January 2010 to February 2021 in the Scopus database using the term "gastrointestinal microbiome" and its synonyms. CiteSpace was used to construct country and author co-occurrence map; conduct journal, citation cocitation analysis, and reference co-citation knowledge map; and form a keywords co-occurrence map, a clustering knowledge map, timeline view of keywords, and burst term map. RESULT A total of 4444 documents published from January 2010 to February 2021 were analysed. In approximately the past decade, the number of articles on the human gastrointestinal microbiome has increased rapidly, and the research topics focus on different populations, research methods, and detection methods. All countries and regions in the world, led by the US, are studying the human gastrointestinal microbiome, and many research teams with close cooperation have been formed. The research has been published extensively in microbiology journals and clinical medicine journals, and the highly cited articles mainly describe the relationship between gastrointestinal microorganisms and human health and disease. Regarding the research emphasis, researchers' exploration of the human gastrointestinal microbiome (2011-2013) was at a relatively macro and superficial stage and sought to determine how the gastrointestinal microbiome relates to humans. From 2014 to 2017, increasingly more studies were conducted to determine the interaction between human gastrointestinal flora and various organs and systems. In addition, researchers (2018-2021) focused on the gastrointestinal microbial community and the diversity of certain types of microbes. CONCLUSION Over time, the scope of the research on the clinical uses of the gastrointestinal microbiome gradually increased, and the contents were gradually deepened and developed towards a more precise level. The study of the human gastrointestinal microbiome is an ongoing research hotspot and contributes to human health.
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Affiliation(s)
- Xingzhu Yuan
- West China School of Nursing/ West China Hospital, Sichuan University, No.8 Teaching Building, Chengdu City, 610041, Sichuan province, China
| | - Chengting Chang
- West China School of Nursing/ West China Hospital, Sichuan University, No.8 Teaching Building, Chengdu City, 610041, Sichuan province, China
| | - Xinrong Chen
- West China School of Nursing/ West China Hospital, Sichuan University, No.8 Teaching Building, Chengdu City, 610041, Sichuan province, China
| | - Ka Li
- West China School of Nursing/ West China Hospital, Sichuan University, No.8 Teaching Building, Chengdu City, 610041, Sichuan province, China.
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15
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Fabusoro OK, Mejia LA. Nutrition in HIV-Infected Infants and Children: Current Knowledge, Existing Challenges, and New Dietary Management Opportunities. Adv Nutr 2021; 12:1424-1437. [PMID: 33439976 PMCID: PMC8321844 DOI: 10.1093/advances/nmaa163] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/12/2020] [Accepted: 11/17/2020] [Indexed: 11/14/2022] Open
Abstract
HIV infection and undernutrition remain significant public health concerns for infants and children. In infants and children under these conditions, undernutrition is one of the leading causes of death. Proper management of nutrition and related nutrition complications in these groups with increased nutrition needs are prominent challenges, particularly in HIV-prevalent poor-resource environments. Several studies support the complexity of the relation between HIV infection, nutrition, and the immune system. These elements interact and create a vicious circle of poor health outcomes. Recent studies on the use of probiotics as a novel approach to manage microbiome imbalance and gut-mucosal impairment in HIV infection are gaining attention. This new strategy could help to manage dysbiosis and gut-mucosal impairment by reducing immune activation, thereby potentially forestalling unwanted health outcomes in children with HIV. However, existing trials on HIV-infected children are still insufficient. There are also conflicting reports on the dosage and effectiveness of single or multiple micronutrient supplementation in the survival of HIV-infected children with severe acute malnutrition. The WHO has published guidelines that include time of initiation of antiretroviral therapy for HIV-pregnant mothers and their HIV-exposed or HIV-infected children, micronutrient supplementation, dietary formulations, prevention, and management of HIV therapy. However, such guidelines need to be reviewed owing to recent advances in the field of nutrition. There is a need for new intervention studies, practical strategies, and evidence-based guidelines to reduce the disease burden, improve adherence to treatment regimen, and enhance the nutrition, health, and well-being of HIV-infected infants and children. This review provides up-to-date scientific information on current knowledge and existing challenges for nutrition therapy in HIV-infected infants and children. Moreover, it presents new research findings that could be incorporated into current guidelines.
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Affiliation(s)
- Olufemi K Fabusoro
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Luis A Mejia
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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Psychological and Gastrointestinal Symptoms of Patients with Irritable Bowel Syndrome Undergoing a Low-FODMAP Diet: The Role of the Intestinal Barrier. Nutrients 2021; 13:nu13072469. [PMID: 34371976 PMCID: PMC8308851 DOI: 10.3390/nu13072469] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/05/2021] [Accepted: 07/16/2021] [Indexed: 12/13/2022] Open
Abstract
A diet low in fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (LFD) improves both gastrointestinal (GI) symptoms and the psychological profile of patients with irritable bowel syndrome with diarrhea (IBS-D). The effects of 12 weeks of LFD on GI symptom and psychological profiles in relation to inflammation and the involvement of the intestinal barrier were studied in twenty IBS-D patients. The IBS Severity Scoring System, the Symptom Checklist-90-Revised, the Italian version of the 36-Item Short-Form Health Survey, the IBS-Quality of Life (QoL) questionnaire, and the Psychophysiological questionnaire were administered. The GI barrier function was assessed by sugar absorption test, the serum and fecal zonulin levels, and the serum levels of intestinal fatty-acid binding protein and diamine oxidase. Interleukins (ILs) and lipopolysaccharide (LPS) serum levels were evaluated along with dysbiosis. At the end of LFD, GI symptoms, psychological state (mainly anxiety, somatization, psychoticism, and interpersonal sensitivity), and QoL significantly improved in these patients. Simultaneously, an improvement in small intestinal permeability and intestinal mucosal integrity occurred, while IL-6, Il-10, LPS, and fermentative dysbiosis significantly decreased. The LFD can modify the immune-inflammatory features and enhance intestinal permeability and mucosal integrity, thus determining a concurrent improvement in the clinical and psychological conditions.
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Gut Microbiota-Related Effects of Tanhuo Decoction in Acute Ischemic Stroke. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5596924. [PMID: 34136066 PMCID: PMC8175183 DOI: 10.1155/2021/5596924] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 04/19/2021] [Accepted: 04/22/2021] [Indexed: 01/06/2023]
Abstract
Acute ischemic stroke (AIS) is a major cause of acquired adult disability and death. Our previous studies proved the efficacy and effectiveness of Tanhuo decoction (THD) on AIS. However, the therapeutic mechanism remains unclear. We recruited 49 AIS patients and 30 healthy people to explore the effects of THD+basic treatment on the poststroke gut microbiota of AIS patients using 16S rRNA sequencing, in which 23 patients received basic treatment (control group) and 26 patients received THD+basic treatment (THD group). By comparing the data before and after treatments, we found the THD group acquired better outcome than the control group on both clinical outcome indices and the characteristics of gut microbiota. In addition to the mediation on short-chain fatty acid- (SCFA-) producing bacteria in two groups, treatment in the THD group significantly decreased the lipopolysaccharide- (LPS-) producing bacteria to reduce LPS biosynthesis. Besides, the complexity of the cooccurrence of gut microbiota and the competition among LPS-producing bacteria and opportunistic pathogenetic bacteria were enhanced in the THD group. Treatment in the THD group also exhibited the potential in decreasing genes on the biosynthesis of trimethylamine (TMA), the precursor of Trimethylamine N-oxide (TMAO), and increasing genes on the degradation of TMA, especially increasing trimethylamine-corrinoid protein Co-methyltransferase (mttB) which catabolizes TMA to methane. These results hinted that THD+basic treatment might exert its efficacy by mediating the gut microbiota and microbial metabolites, including LPS and TMAO that aggravate the sterile inflammation and platelet aggregation. Moreover, the well-fitting regression model results in predicting the clinical outcome with the alteration of gut microbiota proved gut microbiota as a potential indicator of AIS and provided evidence of the communication between the gut and brain of AIS patients.
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18
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Prospero L, Riezzo G, Linsalata M, Orlando A, D'Attoma B, Di Masi M, Martulli M, Russo F. Somatization in patients with predominant diarrhoea irritable bowel syndrome: the role of the intestinal barrier function and integrity. BMC Gastroenterol 2021; 21:235. [PMID: 34022802 PMCID: PMC8141183 DOI: 10.1186/s12876-021-01820-7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/12/2021] [Indexed: 02/06/2023] Open
Abstract
Background Irritable bowel syndrome (IBS) is characterised by gastrointestinal (GI) and psychological symptoms (e.g., depression, anxiety, and somatization). Depression and anxiety, but not somatization, have already been associated with altered intestinal barrier function, increased LPS, and dysbiosis. The study aimed to investigate the possible link between somatization and intestinal barrier in IBS with diarrhoea (IBS-D) patients. Methods Forty-seven IBS-D patients were classified as having low somatization (LS = 19) or high somatization (HS = 28) according to the Symptom Checklist-90-Revised (SCL-90-R), (cut-off score = 63). The IBS Severity Scoring System (IBS-SSS) and the Gastrointestinal Symptom Rating Scale (GSRS) questionnaires were administered to evaluate GI symptoms. The intestinal barrier function was studied by the lactulose/mannitol absorption test, faecal and serum zonulin, serum intestinal fatty-acid binding protein, and diamine oxidase. Inflammation was assessed by assaying serum Interleukins (IL-6, IL-8, IL-10), and tumour necrosis factor-α. Dysbiosis was assessed by the urinary concentrations of indole and skatole and serum lipopolysaccharide (LPS). All data were analysed using a non-parametric test. Results The GI symptoms profiles were significantly more severe, both as a single symptom and as clusters of IBS-SSS and GSRS, in HS than LS patients. This finding was associated with impaired small intestinal permeability and increased faecal zonulin levels. Besides, HS patients showed significantly higher IL-8 and lowered IL-10 concentrations than LS patients. Lastly, circulating LPS levels and the urinary concentrations of indole were higher in HS than LS ones, suggesting a more pronounced imbalance of the small intestine in the former patients. Conclusions IBS is a multifactorial disorder needing complete clinical, psychological, and biochemical evaluations. Trial registration: https://clinicaltrials.gov/ct2/show/NCT03423069.
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Affiliation(s)
- Laura Prospero
- Laboratory of Nutritional Pathophysiology, National Institute of Gastroenterology "S. de Bellis" Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Giuseppe Riezzo
- Laboratory of Nutritional Pathophysiology, National Institute of Gastroenterology "S. de Bellis" Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Michele Linsalata
- Laboratory of Nutritional Pathophysiology, National Institute of Gastroenterology "S. de Bellis" Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Antonella Orlando
- Laboratory of Nutritional Pathophysiology, National Institute of Gastroenterology "S. de Bellis" Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Benedetta D'Attoma
- Laboratory of Nutritional Pathophysiology, National Institute of Gastroenterology "S. de Bellis" Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Marta Di Masi
- Scientific Direction, National Institute of Gastroenterology "S. de Bellis" Research Hospital, 70013, Castellana Grotte, BA, Italy
| | - Manuela Martulli
- Laboratory of Nutritional Pathophysiology, National Institute of Gastroenterology "S. de Bellis" Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Francesco Russo
- Laboratory of Nutritional Pathophysiology, National Institute of Gastroenterology "S. de Bellis" Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy.
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A guide to human microbiome research: study design, sample collection, and bioinformatics analysis. Chin Med J (Engl) 2021; 133:1844-1855. [PMID: 32604176 PMCID: PMC7469990 DOI: 10.1097/cm9.0000000000000871] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The purpose of this review is to provide medical researchers, especially those without a bioinformatics background, with an easy-to-understand summary of the concepts and technologies used in microbiome research. First, we define primary concepts such as microbiota, microbiome, and metagenome. Then, we discuss study design schemes, the methods of sample size calculation, and the methods for improving the reliability of research. We emphasize the importance of negative and positive controls in this section. Next, we discuss statistical analysis methods used in microbiome research, focusing on problems with multiple comparisons and ways to compare β-diversity between groups. Finally, we provide step-by-step pipelines for bioinformatics analysis. In summary, the meticulous study design is a key step to obtaining meaningful results, and appropriate statistical methods are important for accurate interpretation of microbiome data. The step-by-step pipelines provide researchers with insights into newly developed bioinformatics analysis methods.
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It's all in the milk: chondroitin sulfate as potential preventative therapy for necrotizing enterocolitis. Pediatr Res 2021; 89:1373-1379. [PMID: 32920604 PMCID: PMC8784957 DOI: 10.1038/s41390-020-01125-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/13/2020] [Accepted: 08/13/2020] [Indexed: 01/02/2023]
Abstract
Necrotizing enterocolitis (NEC) is a devastating condition affecting up to 5% of neonatal intensive care unit (NICU) admissions. Risk factors include preterm delivery, low birth weight, and antibiotic use. The pathogenesis is characterized by a combination of intestinal ischemia, necrosis of the bowel, reperfusion injury, and sepsis typically resulting in surgical resection of afflicted bowel. Targeted medical therapy remains elusive. Chondroitin sulfate (CS) holds the potential to prevent the onset of NEC through its anti-inflammatory properties and protective effect on the gut microbiome. The purpose of this review is to outline the many properties of CS to highlight its potential use in high-risk infants and attenuate the severity of NEC. The purpose of this review is to (1) discuss the interaction of CS with the infant microbiome, (2) review the anti-inflammatory properties of CS, and (3) postulate on the potential role of CS in preventing NEC. IMPACT: NEC is a costly medical burden in the United States. Breast milk is the best preventative measure for NEC, but not all infants in the NICU have access to breast milk. Novel therapies and diagnostic tools are needed for NEC. CS may be a potential therapy for NEC due to its potent anti-inflammatory properties. CS could be added to the formula in an attempt to mitigate breast milk disparities.
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21
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Zhan K, Zheng H, Li J, Wu H, Qin S, Luo L, Huang S. Gut Microbiota-Bile Acid Crosstalk in Diarrhea-Irritable Bowel Syndrome. BIOMED RESEARCH INTERNATIONAL 2020; 2020:3828249. [PMID: 33274207 PMCID: PMC7676935 DOI: 10.1155/2020/3828249] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/14/2020] [Indexed: 02/06/2023]
Abstract
The occurrence of diarrhea-predominant irritable bowel syndrome (IBS-D) is the result of multiple factors, and its pathogenesis has not yet been clarified. Emerging evidence indicates abnormal changes in gut microbiota and bile acid (BA) metabolism have a close relationship with IBS-D. Gut microbiota is involved in the secondary BA production via deconjugation, 7α-dehydroxylation, oxidation, epimerization, desulfation, and esterification reactions respectively. Changes in the composition and quantity of gut microbiota have an important impact on the metabolism of BAs, which can lead to the occurrence of gastrointestinal diseases. BAs, synthesized in the hepatocytes, play an important role in maintaining the homeostasis of gut microbiota and the balance of glucose and lipid metabolism. In consideration of the complex biological functional connections among gut microbiota, BAs, and IBS-D, it is urgent to review the latest research progress in this field. In this review, we summarized the alterations of gut microbiota in IBS-D and discussed the mechanistic connections between gut microbiota and BA metabolism in IBS-D, which may be involved in activating two important bile acid receptors, G-protein coupled bile acid receptor 1 (TGR5) and farnesoid X receptor (FXR). We also highlight the strategies of prevention and treatment of IBS-D via regulating gut microbiota-bile acid axis, including probiotics, fecal microbiota transplantation (FMT), cholestyramine, and the cutting-edge technology about bacteria genetic engineering.
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Affiliation(s)
- Kai Zhan
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Huan Zheng
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Jianqing Li
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Haomeng Wu
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Shumin Qin
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Lei Luo
- Department of Gastroenterology, The Second People's Hospital of China Three Gorges University, Yichang 443000, China
| | - Shaogang Huang
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510000, China
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22
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Goll R, Johnsen PH, Hjerde E, Diab J, Valle PC, Hilpusch F, Cavanagh JP. Effects of fecal microbiota transplantation in subjects with irritable bowel syndrome are mirrored by changes in gut microbiome. Gut Microbes 2020; 12:1794263. [PMID: 32991818 PMCID: PMC7583512 DOI: 10.1080/19490976.2020.1794263] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Irritable bowel syndrome (IBS) is a common disorder of the lower gastrointestinal tract. The pathophysiology is far from settled, but a gut microbial dysbiosis is hypothesized to be a contributing factor. We earlier published a randomized double-blind placebo-controlled clinical trial on fecal microbiota transplantation (FMT) for IBS - the REFIT trial. The present data set describes the engraftment and includes participants from the study who received active FMT; 14 participants with effect of FMT (Effect) and 8 without (No effect). Samples were collected at baseline, after 6 and 12 months. Samples from the transplants (Donor) served as a comparator. In total 66 recipient samples and 17 donor samples were subjected to deep metagenomic sequencing, and taxonomic and functional analyses were performed. Alpha diversity measures showed a significantly increased diversity and evenness in the IBS groups compared to the donors. Taxonomic profiles showed higher relative abundance of phylum Firmicutes, and lower relative abundance of phylum Bacteroidetes, compared to donors at baseline. This profile was shifted toward the donor profile following FMT. Imputed growth rates showed that the resulting growth pattern was a conglomerate of donor and recipient activity. Thirty-four functional subclasses showed distinct differences between baseline samples and donors, most of which were shifted toward a donor-like profile after FMT. All of these changes were less pronounced in the No effect group. We conclude that FMT induces long-term changes in gut microbiota, and these changes mirror the clinical effect of the treatment. The study was registered in ClinicalTrials.gov (NCT02154867).
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Affiliation(s)
- Rasmus Goll
- Research Group of Gastroenterology and Nutrition, Department of Clinical Medicine, UiT the Arctic University of Norway, Tromsø, Norway,Department of Gastroenterology, Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway,CONTACT Rasmus Goll Department of Gastroenterology, Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Peter Holger Johnsen
- Research Group of Gastroenterology and Nutrition, Department of Clinical Medicine, UiT the Arctic University of Norway, Tromsø, Norway,Department of Internal Medicine, University Hospital of North Norway, Harstad, Norway
| | - Erik Hjerde
- Institute of Chemistry, UiT the Arctic University of Norway, Tromsø, Norway
| | - Joseph Diab
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy, UiT the Arctic University of Norway, Tromsø, Norway
| | - Per Christian Valle
- Department of Internal Medicine, University Hospital of North Norway, Harstad, Norway
| | | | - Jorunn Pauline Cavanagh
- Pediatric Infections Group. Department of Pediatrics, University Hospital of North Norway, Tromsø, Norway,Pediatric Infections Group. Department of Clinical Medicine, UiT the Arctic University of Norway, Tromsø, Norway
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23
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Baghai Arassi M, Zeller G, Karcher N, Zimmermann M, Toenshoff B. The gut microbiome in solid organ transplantation. Pediatr Transplant 2020; 24:e13866. [PMID: 32997434 DOI: 10.1111/petr.13866] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/06/2020] [Accepted: 09/02/2020] [Indexed: 02/06/2023]
Abstract
Despite ground-breaking advances in allogeneic transplantation, allograft rejection and immunosuppressant-specific complications remain a major challenge in transplant medicine. Growing evidence suggests the human gut microbiome as a potential contributor to transplant outcome and patient health. After breakthrough findings in haematopoietic stem cell transplantation (HSCT), the relevance of the microbiome in solid organ transplantation (SOT) is becoming increasingly clear. Here, we review the role of the microbiome in SOT focusing on its significance for transplant-associated complications such as allograft rejection and infections, and highlight its potential impact on immunosuppressive treatment. Moreover, we shed light on the emerging role of the microbiome as a diagnostic biomarker and therapeutic target and discuss current microbial intervention strategies. In addition, this review includes some practical considerations in designing clinical microbiome trials and offers some advice for the interpretation of the resulting data. Further investigation of the gut microbiome harbours countless clinical application possibilities and holds great promise of having a lasting impact on transplant medicine.
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Affiliation(s)
- Maral Baghai Arassi
- Department of Paediatrics I, University Children's Hospital Heidelberg, Heidelberg, Germany.,Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Georg Zeller
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Nicolai Karcher
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Michael Zimmermann
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Burkhard Toenshoff
- Department of Paediatrics I, University Children's Hospital Heidelberg, Heidelberg, Germany
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24
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Noninvasive Biomarkers of Gut Barrier Function in Patients Suffering from Diarrhea Predominant-IBS: An Update. DISEASE MARKERS 2020; 2020:2886268. [PMID: 33110455 PMCID: PMC7582069 DOI: 10.1155/2020/2886268] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 09/23/2020] [Accepted: 10/07/2020] [Indexed: 12/14/2022]
Abstract
The intestinal barrier plays a crucial role in the absorption of nutrients and in preventing the entry of pathogenic microorganisms and toxic molecules. Several studies have shown a compromised intestinal barrier associated with low-grade inflammation in the small intestinal mucosa in celiac disease, inflammatory bowel disease, and irritable bowel syndrome (IBS), particularly in IBS with diarrhea (IBS-D). In light of these new data, IBS is no longer considered a functional disease but rather a heterogeneous syndrome that has yet to be carefully studied. Therefore, investigating the integrity and function of the intestinal barrier is now essential to improving knowledge of the pathophysiology of IBS-D and to improving the management of IBS-D patients. However, the study of the intestinal barrier must clarify some still unsolved methodological aspects and propose standardised assays before becoming a useful diagnostic tool. In this framework, this review will discuss data about the tests that noninvasively evaluate the integrity and functionality of the human intestinal barrier, paying particular attention to patients with IBS-D, in both clinical and research situations.
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25
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Zheng LF, Ji T, Guo ZH, Wang T, Xiu XL, Liu XY, Li SC, Sun L, Xue H, Zhang Y, Zhu JX. Na+-K+-2Cl- cotransporter 2 located in the human and murine gastric mucosa is involved in secretagogue-induced gastric acid secretion and is downregulated in lipopolysaccharide-treated mice. Eur J Pharmacol 2020; 880:173162. [DOI: 10.1016/j.ejphar.2020.173162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 03/18/2020] [Accepted: 04/29/2020] [Indexed: 01/07/2023]
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26
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Akhmedov VA, Sargsyan AK, Gaus OV. Prospects for the use of biomarkers in the diagnosis of irritable bowel syndrome. ACTA ACUST UNITED AC 2020. [DOI: 10.31146/1682-8658-ecg-175-3-94-101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Irritable bowel syndrome is a chronic functional disorder of the intestine, manifested by altered intestinal habits and recurrent abdominal pain in combination with two or more criteria: association with defecation, association with a change in the frequency of defecation, association with a change in the appearance of the stool. To date, IBS remains a diagnosis of exclusion that needs to be differentiated from a wide range of organic diseases. In recent years, a large number of publications have appeared on the research of etiopathogenesis, diagnosis and treatment of IBS. This literary review highlights the problems of searching for biomarkers of IBS as a way to solve the problem of diagnosis of this pathology and understanding the causes of its occurrence.
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Affiliation(s)
- V. A. Akhmedov
- Federal State Educational Establishment of Higher Education Omsk State Medical University of the Ministry of Health of the Russian Federation
| | - A. K. Sargsyan
- Federal State Educational Establishment of Higher Education Omsk State Medical University of the Ministry of Health of the Russian Federation
| | - O. V. Gaus
- Federal State Educational Establishment of Higher Education Omsk State Medical University of the Ministry of Health of the Russian Federation
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27
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Li XY, He C, Zhu Y, Lu NH. Role of gut microbiota on intestinal barrier function in acute pancreatitis. World J Gastroenterol 2020; 26:2187-2193. [PMID: 32476785 PMCID: PMC7235204 DOI: 10.3748/wjg.v26.i18.2187] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 03/26/2020] [Accepted: 04/14/2020] [Indexed: 02/06/2023] Open
Abstract
Acute pancreatitis (AP) is a common gastrointestinal disorder. Approximately 15%-20% of patients develop severe AP. Systemic inflammatory response syndrome and multiple organ dysfunction syndrome may be caused by the massive release of inflammatory cytokines in the early stage of severe AP, followed by intestinal dysfunction and pancreatic necrosis in the later stage. A study showed that 59% of AP patients had associated intestinal barrier injury, with increased intestinal mucosal permeability, leading to intestinal bacterial translocation, pancreatic tissue necrosis and infection, and the occurrence of multiple organ dysfunction syndrome. However, the real effect of the gut microbiota and its metabolites on intestinal barrier function in AP remains unclear. This review summarizes the alterations in the intestinal flora and its metabolites during AP development and progression to unveil the mechanism of gut failure in AP.
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Affiliation(s)
- Xue-Yang Li
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Cong He
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Yin Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Nong-Hua Lu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
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28
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In Situ Profiling of the Three Dominant Phyla Within the Human Gut Using TaqMan PCR for Pre-Hospital Diagnosis of Gut Dysbiosis. Int J Mol Sci 2020; 21:ijms21061916. [PMID: 32168885 PMCID: PMC7139488 DOI: 10.3390/ijms21061916] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/05/2020] [Accepted: 03/09/2020] [Indexed: 12/26/2022] Open
Abstract
A microbial imbalance called dysbiosis leads to inflammatory bowel disease (IBD), which can include ulcerative colitis (UC). Fecal microbiota transplantation (FMT), a novel therapy, has recently been successful in treating gut dysbiosis in UC patients. For the FMT technique to be successful, the gut microbiota of both the healthy donors and UC patients must be characterized. For decades, next-generation sequencing (NGS) has been used to analyze gut microbiota. Despite the popularity of NGS, the cost and time constraints make it difficult to use in emergency services and activities related to the periodic monitoring of microbiota profile alterations. Hence, in this study, we developed a multiplex TaqMan qPCR assay (MTq-PCR) with novel probes to simultaneously determine the relative proportions of the three dominant microbial phyla in the human gut: Bacteroidetes, Firmicutes, and Proteobacteria. The relative proportions of the three phyla in fecal samples of either healthy volunteers or UC patients were similar when assessed NGS and the MTq-PCR. Thus, our MTq-PCR assay could be a practical microbiota profiling alternative for diagnosing and monitoring gut dysbiosis in UC patients during emergency situations, and it could have a role in screening stool from potential FMT donors.
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29
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Ortigão R, Pimentel-Nunes P, Dinis-Ribeiro M, Libânio D. Gastrointestinal Microbiome - What We Need to Know in Clinical Practice. GE-PORTUGUESE JOURNAL OF GASTROENTEROLOGY 2020; 27:336-351. [PMID: 32999906 DOI: 10.1159/000505036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 11/14/2019] [Indexed: 12/12/2022]
Abstract
Human gut microbiota plays an important role in individual health. When the balance between host and gut microbiota is disrupted, changes in microbiota composition and function occur, which is referred as dysbiosis. Environmental factors as diet, proton pump inhibitors, and antibiotics can lead to a permanent dysbiotic disruption. Clarification of these imbalances was made possible by recent advances in genome sequencing methods that supported acknowledgment of the interplay between microbiome and intestinal and extraintestinal disorders. This review focuses on the microbiota impact in inflammatory bowel disease, gastric cancer, colorectal cancer, nonalcoholic fatty liver disease (NAFLD), irritable bowel syndrome (IBS), and Clostridium difficile infection (CDI). Furthermore, novel therapies are summarized. Fecal microbiota transplant (FMT) is a successful and established therapy in recurrent CDI, and its application in other dysbiosis-related diseases is attracting enormous interest. Pre- and probiotics target microbial rebalance and have positive effects mainly in NAFLD, ulcerative colitis, IBS, and CDI patients. Promising anticarcinogenic effects have also been demonstrated in animal models. The literature increasingly describes microbial changes in many dysbiotic disorders and shows what needs to be treated. However, probiotics and FMT application in clinical practice suffers from a shortage of randomized controlled trials with standardized therapy regimens to support their recommendation.
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Affiliation(s)
- Raquel Ortigão
- Department of Gastroenterology, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - Pedro Pimentel-Nunes
- Department of Gastroenterology, Portuguese Oncology Institute of Porto, Porto, Portugal.,MEDCIDS - Department of Community Medicine, Information and Decision in Health, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Mário Dinis-Ribeiro
- Department of Gastroenterology, Portuguese Oncology Institute of Porto, Porto, Portugal.,MEDCIDS - Department of Community Medicine, Information and Decision in Health, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Diogo Libânio
- Department of Gastroenterology, Portuguese Oncology Institute of Porto, Porto, Portugal.,MEDCIDS - Department of Community Medicine, Information and Decision in Health, Faculty of Medicine, University of Porto, Porto, Portugal
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30
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Xiong Y, Liu L, Zhou X, Wen Y, Wang R. Anti-Helicobacter pylori treatment can effectively improve the clinical remission rates of irritable bowel syndrome: a controlled clinical trial meta-analysis. Clinics (Sao Paulo) 2020; 75:e1857. [PMID: 33206753 PMCID: PMC7603230 DOI: 10.6061/clinics/2020/e1857] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 07/10/2020] [Indexed: 12/13/2022] Open
Abstract
Here we used a meta-analysis of several clinical trials to determine whether anti-Helicobacter pylori therapy has any positive effect on IBS patients. Here we compared the effective clinical remission rates between IBS patients treated with anti-H. pylori therapy and those who were not. This data would provide more clinical evidence regarding the efficacy of novel treatments and intervention points for IBS patients. Relevant studies were identified using keyword searches on various electronic databases, including PubMed, Embase, the Cochrane Central Register of Controlled Trials, CNKI, and CBM. Keywords included "helicobacter pylori" and "irritable bowel syndrome" among others. The literature was screened using relatively strict inclusion and exclusion criteria and RevMan 5.3.5 and Stata 15.1 software were used for meta-analysis and to assess publication bias and sensitivity. A total of ten studies met all of the inclusion criteria; these included 655 IBS patients with H. pylori infection, of these, 385 patients were in the experimental group and 270 patients were in the control group. A random-effects model was used to pool the odds ratios (ORs) with a 95% confidence interval (CIs) and the combined OR was 2.87 (95% CI: 1.74-4.72), p<0.0001. These findings suggest that anti-H. pylori therapy can effectively improve the remission rates of H. pylori-positive IBS patients. H. pylori infection is known to correlate with the incidence of IBS. Anti-H. pylori treatment can effectively improve the clinical remission rates of IBS patients. Whether this means that IBS patients should be actively treated with anti-H. pylori compounds as a novel strategy to improve the remission rates needs to be evaluated in vivo.
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Affiliation(s)
- Yan Xiong
- Department of Gastroenterology, the First Affiliated Hospital of Chongqing Medical University, People’s Republic of China
| | - Lulu Liu
- Department of Gastroenterology, the First Affiliated Hospital of Chongqing Medical University, People’s Republic of China
| | - Xuchun Zhou
- Department of Gastroenterology, the First Affiliated Hospital of Chongqing Medical University, People’s Republic of China
- *Corresponding author. E-mail:
| | - Youfei Wen
- Department of Gastroenterology, the First Affiliated Hospital of Chongqing Medical University, People’s Republic of China
| | - Ruonan Wang
- Hainan Medical College, People’s Republic of China
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31
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Kimono D, Sarkar S, Albadrani M, Seth R, Bose D, Mondal A, Li Y, Kar AN, Nagarkatti M, Nagarkatti P, Sullivan K, Janulewicz P, Lasley S, Horner R, Klimas N, Chatterjee S. Dysbiosis-Associated Enteric Glial Cell Immune-Activation and Redox Imbalance Modulate Tight Junction Protein Expression in Gulf War Illness Pathology. Front Physiol 2019; 10:1229. [PMID: 31680990 PMCID: PMC6802578 DOI: 10.3389/fphys.2019.01229] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 09/09/2019] [Indexed: 12/19/2022] Open
Abstract
About 14% of veterans who suffer from Gulf war illness (GWI) complain of some form of gastrointestinal disorder but with no significant markers of clinical pathology. Our previous studies have shown that exposure to GW chemicals resulted in altered microbiome which was associated with damage associated molecular pattern (DAMP) release followed by neuro and gastrointestinal inflammation with loss of gut barrier integrity. Enteric glial cells (EGC) are emerging as important regulators of the gastrointestinal tract and have been observed to change to a reactive phenotype in several functional gastrointestinal disorders such as IBS and IBD. This study is aimed at investigating the role of dysbiosis associated EGC immune-activation and redox instability in contributing to observed gastrointestinal barrier integrity loss in GWI via altered tight junction protein expression. Using a mouse model of GWI and in vitro studies with cultured EGC and use of antibiotics to ensure gut decontamination we show that exposure to GW chemicals caused dysbiosis associated change in EGCs. EGCs changed to a reactive phenotype characterized by activation of TLR4-S100β/RAGE-iNOS pathway causing release of nitric oxide and activation of NOX2 since gut sterility with antibiotics prevented this change. The resulting peroxynitrite generation led to increased oxidative stress that triggered inflammation as shown by increased NLRP-3 inflammasome activation and increased cell death. Activated EGCs in vivo and in vitro were associated with decrease in tight junction protein occludin and selective water channel aquaporin-3 with a concomitant increase in Claudin-2. The tight junction protein levels were restored following a parallel treatment of GWI mice with a TLR4 inhibitor SsnB and butyric acid that are known to decrease the immunoactivation of EGCs. Our study demonstrates that immune-redox mechanisms in EGC are important players in the pathology in GWI and may be possible therapeutic targets for improving outcomes in GWI symptom persistence.
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Affiliation(s)
- Diana Kimono
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Sutapa Sarkar
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Muayad Albadrani
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Ratanesh Seth
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Dipro Bose
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Ayan Mondal
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Yuxi Li
- Department of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Amar N. Kar
- Department of Biological Sciences, University of South Carolina, Columbia, SC, United States
| | - Mitzi Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Prakash Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Kimberly Sullivan
- Department of Environmental Health Sciences, Boston University School of Public Health, Boston, MA, United States
| | - Patricia Janulewicz
- Department of Environmental Health Sciences, Boston University School of Public Health, Boston, MA, United States
| | - Stephen Lasley
- Department of Cancer Biology and Pharmacology, University of Illinois College of Medicine at Peoria, Peoria, IL, United States
| | - Ronnie Horner
- Department of Health Services Policy and Management, University of South Carolina, Columbia, SC, United States
| | - Nancy Klimas
- Department of Clinical Immunology, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Saurabh Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
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