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Wang Y, Wang X, Niu X, Han K, Ru N, Xiang J, Linghu E. Identification of COL3A1 as a candidate protein involved in the crosstalk between obesity and diarrhea using quantitative proteomics and machine learning. Eur J Pharmacol 2024; 981:176881. [PMID: 39127300 DOI: 10.1016/j.ejphar.2024.176881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 06/05/2024] [Accepted: 08/08/2024] [Indexed: 08/12/2024]
Abstract
BACKGROUND Increasing epidemiologic studies have shown a positive correlation between obesity and chronic diarrhea. Nevertheless, the precise etiology remains uncertain. METHODS We performed a comprehensive proteomics analysis utilizing the data-independent acquisition (DIA) technique on jejunal tissues from patients with obesity and chronic diarrhea (OD, n = 33), obese patients (OB, n = 10), and healthy controls (n = 8). Differentially expressed proteins (DEPs) in OD vs. control and OD vs. OB comparisons were subjected to pathway enrichment and protein-protein interaction (PPI) network analysis. Machine learning algorithms were adopted on overlapping DEPs in both comparisons. The candidate protein was further validated using Western blot, immunohistochemistry (IHC), and in vitro experiments. RESULTS We identified 189 and 228 DEPs in OD vs. control and OD vs. OB comparisons, respectively. DEPs in both comparisons were co-enriched in extracellular matrix (ECM) organization. Downregulated DEPs were associated with tight junction and ECM-receptor interaction in OD vs. control and OD vs. OB comparisons, respectively. Machine learning algorithms selected 3 proteins from 14 overlapping DEPs in both comparisons, among which collagen alpha-1(III) chain (COL3A1) was identified as a core protein in PPI networks. Western blot and IHC verified the expression of COL3A1. Moreover, the tight junction-related proteins decreased after the knockdown of COL3A1 in Caco2 intestinal cells upon PA challenge, consistent with the proteomics results. CONCLUSIONS We generated in-depth profiling of a proteomic dataset from samples of OD patients and provided unique insights into disease pathogenesis. COL3A1 was involved in the crosstalk between obesity and intestinal homeostasis via the ECM-receptor interaction pathway.
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Affiliation(s)
- Yan Wang
- Nankai University School of Medicine, Nankai University, Tianjin, 300071, China; Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China
| | - Xiangyao Wang
- Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China
| | - Xiaotong Niu
- Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China; Medical School of Chinese PLA, Beijing, 100853, China
| | - Ke Han
- Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China; Medical School of Chinese PLA, Beijing, 100853, China
| | - Nan Ru
- Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China
| | - Jingyuan Xiang
- Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China; Medical School of Chinese PLA, Beijing, 100853, China
| | - Enqiang Linghu
- Nankai University School of Medicine, Nankai University, Tianjin, 300071, China; Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China.
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Cheng LH, Wu CC, Wei YH, Wen PJ, Hsu CC, Tsai YC, Wang S. Anti-aging effects of Lacticaseibacillus paracasei PS117 on cognitive and intestinal health in naturally-aged mice: A focus on senescence-related proteins and microbiota composition. Exp Gerontol 2024; 195:112529. [PMID: 39079652 DOI: 10.1016/j.exger.2024.112529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/15/2024] [Accepted: 07/23/2024] [Indexed: 08/03/2024]
Abstract
The rising global aging population underscores the urgency of maintaining the health and well-being of the elderly while reducing the healthcare burden. Anti-aging probiotics have emerged as a promising strategy. This study identified a novel anti-senescence probiotic, Lacticaseibacillus paracasei PS117 (PS117). The effects of PS117 and heat-treated PS117 (HT-PS117) supplementation on cognitive function of naturally-aged male mice were investigated. It was found that PS117 supplementation improved the cognitive performance of aged mice in the Y-maze test. Furthermore, the level of senescence-related protein p16INK4a (p16) were reduced, while anti-senescence protein sirtuin 1 (Sirt1) were increased in the hippocampus. In addition, there was an overall improvement in the intestinal function. Distinct changes in the gut microbiota were also identified, suggesting a potential contribution to the beneficial effects of PS117 supplementation. In conclusion, these results suggest that PS117 supplements could improve cognitive and intestinal functions in naturally-aged mice, while HT-117 improves only intestinal function, possibly by improving the gut microbiota composition.
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Affiliation(s)
- Li-Hao Cheng
- Bened Biomedical Co., Ltd., Taipei 10448, Taiwan, ROC
| | - Chien-Chen Wu
- Bened Biomedical Co., Ltd., Taipei 10448, Taiwan, ROC
| | - Yu-Hsuan Wei
- Bened Biomedical Co., Ltd., Taipei 10448, Taiwan, ROC
| | - Pei-Jun Wen
- Bened Biomedical Co., Ltd., Taipei 10448, Taiwan, ROC
| | | | - Ying-Chieh Tsai
- Institute of Biochemistry and Molecular Biology, National Yang Ming Chial Tung University, Taipei, Taiwan, ROC
| | - Sabrina Wang
- Institute of Anatomy and Cell Biology, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC.
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Liu T, Sun W, Guo S, Chen T, Zhu M, Yuan Z, Li B, Lu J, Shao Y, Qu Y, Sun Z, Feng C, Yang T. Research progress on pathogenesis of chronic fatigue syndrome and treatment of traditional Chinese and Western medicine. Auton Neurosci 2024; 255:103198. [PMID: 39047501 DOI: 10.1016/j.autneu.2024.103198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 06/11/2024] [Accepted: 06/30/2024] [Indexed: 07/27/2024]
Abstract
Chronic Fatigue Syndrome (CFS) is a complex and perplexing medical disorder primarily characterized by persistent and debilitating fatigue, often accompanied by a constellation of symptoms, including weakness, dyspnea, arthromyalgia, sore throat, and disrupted sleep patterns. CFS is defined by its persistent or recurrent manifestation for a minimum duration of six months, marked by an enduring and unrelenting fatigue that remains refractory to rest. In recent decades, this condition has garnered significant attention within the medical community. While the precise etiology of CFS remains elusive, it is postulated to be multifactorial. CFS is potentially associated with various contributory factors such as infections, chronic stress, genetic predisposition, immune dysregulation, and psychosocial influences. The pathophysiological underpinnings of CFS encompass viral infections, immune system dysregulation, neuroendocrine aberrations, heightened oxidative stress, and perturbations in gut microbiota. Presently, clinical management predominantly relies on pharmaceutical interventions or singular therapeutic modalities, offering alleviation of specific symptoms but exhibiting inherent limitations. Traditional Chinese Medicine (TCM) interventions have emerged as a promising paradigm, demonstrating notable efficacy through their multimodal, multi-target, multi-pathway approach, and holistic regulatory mechanisms. These interventions effectively address the lacunae in contemporary medical interventions. This comprehensive review synthesizes recent advancements in the understanding of the etiological factors, pathophysiological mechanisms, and interventional strategies for CFS, drawing from a corpus of domestic and international literature. Its aim is to furnish valuable insights for clinicians actively involved in diagnosing and treating CFS, as well as for pharmaceutical researchers delving into innovative drug development pathways. Moreover, it seeks to address the intricate challenges confronted by clinical practitioners in managing this incapacitating condition.
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Affiliation(s)
- Tingting Liu
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Weibo Sun
- Harbin Medical University, Harbin, China
| | - Shuhao Guo
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Tao Chen
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Minghang Zhu
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Zhiying Yuan
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Binbin Li
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Jing Lu
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yuying Shao
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yuanyuan Qu
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Zhongren Sun
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Chuwen Feng
- Heilongjiang University of Chinese Medicine, Harbin, China; Rehabilitation Medicine Department, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China; Key Laboratory of Chinese Medicine Informotics in Heilongjiang Province, 24 Heping Road, Harbin, China
| | - Tiansong Yang
- Heilongjiang University of Chinese Medicine, Harbin, China; Rehabilitation Medicine Department, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China; Key Laboratory of Chinese Medicine Informotics in Heilongjiang Province, 24 Heping Road, Harbin, China.
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4
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Jing L, Zhang Y, Zhang Q, Zhao H. Polystyrene microplastics disrupted physical barriers, microbiota composition and immune responses in the cecum of developmental Japanese quails. J Environ Sci (China) 2024; 144:225-235. [PMID: 38802233 DOI: 10.1016/j.jes.2023.08.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/17/2023] [Accepted: 08/17/2023] [Indexed: 05/29/2024]
Abstract
Microplastics, a new type of emerging pollutant, is ubiquitous in terrestrial and water environments. Microplastics have become a growing concern due to their impacts on the environment, animal, and human health. Birds also suffer from microplastics contamination. In this study, we examined the toxic effects of polystyrene microplastics (PS-MPs) exposure on physical barrier, microbial community, and immune function in the cecum of a model bird species-Japanese quail (Coturnix japonica). The one-week-old birds were fed on environmentally relevant concentrations of 20 µg/kg, 400 µg/kg, and 8 mg/kg PS-MPs in the diet for 5 weeks. The results showed that microplastics could cause microstructural damages characterized by lamina propria damage and epithelial cell vacuolation and ultrastructural injuries including microvilli breakage and disarrangement as well as mitochondrial vacuolation in the cecum of quails. In particular, blurry tight junctions, wider desmosomes spacing, and gene expression alteration indicated cecal tight junction malfunction. Moreover, mucous layer breakdown and mucin decrease indicated that chemical barrier was disturbed by PS-MPs. PS-MPs also changed cecal microbial diversity. In addition, structural deformation of cecal tonsils and increasing proinflammatory cytokines suggested cecal immune disorder and inflammation responses by PS-MPs exposure. Our results suggested that microplastics negatively affected digestive system and might pose great health risks to terrestrial birds.
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Affiliation(s)
- Lingyang Jing
- College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China
| | - Yuxin Zhang
- College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China
| | - Qingyu Zhang
- College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China
| | - Hongfeng Zhao
- College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China.
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Phuong-Nguyen K, O’Hely M, Kowalski GM, McGee SL, Aston-Mourney K, Connor T, Mahmood MQ, Rivera LR. The Impact of Yoyo Dieting and Resistant Starch on Weight Loss and Gut Microbiome in C57Bl/6 Mice. Nutrients 2024; 16:3138. [PMID: 39339738 PMCID: PMC11435396 DOI: 10.3390/nu16183138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Revised: 09/05/2024] [Accepted: 09/13/2024] [Indexed: 09/30/2024] Open
Abstract
Cyclic weight loss and subsequent regain after dieting and non-dieting periods, a phenomenon termed yoyo dieting, places individuals at greater risk of metabolic complications and alters gut microbiome composition. Resistant starch (RS) improves gut health and systemic metabolism. This study aimed to investigate the effect of yoyo dieting and RS on the metabolism and gut microbiome. C57BL/6 mice were assigned to 6 diets for 20 weeks, including control, high fat (HF), yoyo (alternating HF and control diets every 5 weeks), control with RS, HF with RS, and yoyo with RS. Metabolic outcomes and microbiota profiling using 16S rRNA sequencing were examined. Yoyo dieting resulted in short-term weight loss, which led to improved liver health and insulin tolerance but also a greater rate of weight gain compared to continuous HF feeding, as well as a different microbiota profile that was in an intermediate configuration between the control and HF states. Mice fed HF and yoyo diets supplemented with RS gained less weight than those fed without RS. RS supplementation in yoyo mice appeared to shift the gut microbiota composition closer to the control state. In conclusion, yoyo dieting leads to obesity relapse, and increased RS intake reduces weight gain and might help prevent rapid weight regain via gut microbiome restoration.
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Affiliation(s)
- Kate Phuong-Nguyen
- School of Medicine, Institute for Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC 3220, Australia; (M.O.); (S.L.M.); (K.A.-M.); (T.C.)
- Metabolic Research Unit, School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
| | - Martin O’Hely
- School of Medicine, Institute for Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC 3220, Australia; (M.O.); (S.L.M.); (K.A.-M.); (T.C.)
- Murdoch Children’s Research Institute, Royal Children’s Hospital, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Greg M. Kowalski
- Metabolic Research Unit, School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition, Deakin University, Waurn Ponds, VIC 3216, Australia
| | - Sean L. McGee
- School of Medicine, Institute for Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC 3220, Australia; (M.O.); (S.L.M.); (K.A.-M.); (T.C.)
- Metabolic Research Unit, School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
| | - Kathryn Aston-Mourney
- School of Medicine, Institute for Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC 3220, Australia; (M.O.); (S.L.M.); (K.A.-M.); (T.C.)
- Metabolic Research Unit, School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
| | - Timothy Connor
- School of Medicine, Institute for Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC 3220, Australia; (M.O.); (S.L.M.); (K.A.-M.); (T.C.)
- Metabolic Research Unit, School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
| | - Malik Q. Mahmood
- School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
| | - Leni R. Rivera
- School of Medicine, Institute for Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC 3220, Australia; (M.O.); (S.L.M.); (K.A.-M.); (T.C.)
- Metabolic Research Unit, School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
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6
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Teige ES, Hillestad EMR, Steinsvik EK, Brønstad I, Lundervold A, Lundervold AJ, Valeur J, Hausken T, Berentsen B, Lied GA. Fecal bacteria and short-chain fatty acids in irritable bowel syndrome: Relations to subtype. Neurogastroenterol Motil 2024; 36:e14854. [PMID: 38946176 DOI: 10.1111/nmo.14854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 05/16/2024] [Accepted: 06/15/2024] [Indexed: 07/02/2024]
Abstract
BACKGROUND The relationship between gut microbiota and irritable bowel syndrome (IBS) subtype is unclear. We aimed to explore whether differences in fecal bacteria composition and short-chain fatty acid (SCFA) levels were associated with subtypes and symptoms of IBS. METHODS All participants delivered fecal samples and self-reports on IBS Symptom Severity Score (IBS-SSS), Bristol Stool Scale (BSS), and Gastrointestinal Symptom Rating Scale (GSRS). Fecal bacteria composition was assessed by the GA-map® Dysbiosis Test based on 16S rRNA sequences of bacterial species/groups. SCFAs were analyzed by vacuum distillation followed by gas chromatography. KEY RESULTS Sixty patients with IBS were included (mean age 38 years, 46 [77%] females): Twenty-one patients were classified as IBS-D (diarrhea), 31 IBS-M (mixed diarrhea and constipation), and eight IBS-C (constipation). Forty-two healthy controls (HCs) (mean age 35 years, 27 [64%] females) were included. Patients had a significantly higher relative frequency of dysbiosis, lower levels of Actinobacteria, and higher levels of Bacilli than HCs. Eight bacterial markers were significantly different across IBS subgroups and HCs, and 13 bacterial markers were weakly correlated with IBS symptoms. Clostridia and Veillonella spp. had a weak negative correlation with constipation scores (GSRS) and a weak positive correlation with loose stools (BSS). Diarrhea scores (GSRS) and looser stool (BSS) were weakly correlated with levels of total SCFAs, acetic and butyric acid. Levels of total SCFAs and acetic acid were weakly correlated with symptom severity (IBS-SSS). CONCLUSIONS & INFERENCES Patients with IBS had a different fecal bacteria composition compared to HCs, and alterations of SCFAs may contribute to the subtype.
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Affiliation(s)
- Erica Sande Teige
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Eline Margrete Randulff Hillestad
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Elisabeth Kjelsvik Steinsvik
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Ingeborg Brønstad
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Arvid Lundervold
- Mohn Medical Imaging and Visualization Centre, Haukeland University Hospital, Bergen, Norway
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Astri J Lundervold
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
| | - Jørgen Valeur
- Unger-Vetlesen Institute, Lovisenberg Diaconal Hospital Oslo, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Trygve Hausken
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Birgitte Berentsen
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Gülen Arslan Lied
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- National Centre for Functional Gastrointestinal Disorders, Department of Medicine, Haukeland University Hospital, Bergen, Norway
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Quan R, Decraecker L, Appeltans I, Cuende-Estévez M, Van Remoortel S, Aguilera-Lizarraga J, Wang Z, Hicks G, Wykosky J, McLean P, Denadai-Souza A, Hussein H, Boeckxstaens GE. Fecal Proteolytic Bacteria and Staphylococcal Superantigens Are Associated With Abdominal Pain Severity in Irritable Bowel Syndrome. Am J Gastroenterol 2024:00000434-990000000-01309. [PMID: 39166748 DOI: 10.14309/ajg.0000000000003042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Accepted: 07/30/2024] [Indexed: 08/23/2024]
Abstract
INTRODUCTION Changes in the composition of the gut microbiota have been associated with the development of irritable bowel syndrome (IBS). However, to what extent specific bacterial species relate to clinical symptoms remains poorly characterized. We investigated the clinical relevance of bacterial species linked with increased proteolytic activity, histamine production, and superantigen (SAg) production in patients with IBS. METHODS Fecal (n = 309) and nasal (n = 214) samples were collected from patients with IBS and healthy volunteers (HV). Clinical symptoms and gut transit time were evaluated. Bacterial abundance in feces and nasal swabs as well as fecal trypsin-like activity were assessed. RESULTS The percentage of fecal samples containing Staphylococcus aureus was significantly higher in IBS compared with HV. Forty-nine percent of S. aureus -positive fecal samples from patients with IBS were also positive for SAgs, compared with 12% of HV. Patients with IBS and positive fecal SAg-producing S. aureus reported higher pain scores than those without S. aureus . Moreover, increased fecal proteolytic activity was associated with abdominal pain. Fecal abundance of Paraprevotella clara and Alistipes putredinis was significantly decreased in IBS, particularly in samples with higher proteolytic activity. Patients with lower Alistipes putredinis or Faecalibacterium prausnitzii abundance reported more severe abdominal pain. DISCUSSION In keeping with our preclinical findings, we show that increased presence of SAg-producing S. aureus in fecal samples of patients with IBS is associated with increased levels of abdominal pain. We also show that increased fecal proteolytic activity is associated with increased abdominal pain in patients with IBS.
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Affiliation(s)
- Runze Quan
- Center for Intestinal Neuroimmune Interactions, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
| | - Lisse Decraecker
- Center for Intestinal Neuroimmune Interactions, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
| | - Iris Appeltans
- Center for Intestinal Neuroimmune Interactions, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
| | - María Cuende-Estévez
- Center for Intestinal Neuroimmune Interactions, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
| | - Samuel Van Remoortel
- Center for Intestinal Neuroimmune Interactions, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
| | - Javier Aguilera-Lizarraga
- Laboratory of Sensory Neurophysiology and Pain, Department of Pharmacology, University of Cambridge, Cambridge, UK
| | - Zheng Wang
- Center for Intestinal Neuroimmune Interactions, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
| | | | | | | | - Alexandre Denadai-Souza
- Laboratory of Mucosal Biology, Hepatology Research Unit, Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
| | - Hind Hussein
- Center for Intestinal Neuroimmune Interactions, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
| | - Guy E Boeckxstaens
- Center for Intestinal Neuroimmune Interactions, Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
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8
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Fu H, Chen Z, Teng W, Du Z, Zhang Y, Ye X, Yu Z, Zhang Y, Pi X. Effects of fructooligosaccharides and Saccharomyces boulardii on the compositional structure and metabolism of gut microbiota in students. Microbiol Res 2024; 285:127741. [PMID: 38761487 DOI: 10.1016/j.micres.2024.127741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/21/2024] [Accepted: 04/29/2024] [Indexed: 05/20/2024]
Abstract
Fructooligosaccharides (FOS) are a common prebiotic widely used in functional foods. Meanwhile, Saccharomyces boulardii is a fungal probiotic frequenly used in the clinical treatment of diarrhea. Compared with single use, the combination of prebiotics and probiotics as symbiotics may be more effective in regulating gut microbiota as recently reported in the literature. The present study aimed to investigate the effects of FOS, S. boulardii and their combination on the structure and metabolism of the gut microbiota in healthy primary and secondary school students using an in vitro fermentation model. The results indicated that S. boulardii alone could not effectively regulate the community structure and metabolism of the microbiota. However, both FOS and the combination of FOS and S. boulardii could effectively regulate the microbiota, significantly inhibiting the growth of Escherichia-Shigella and Bacteroides, and controlling the production of the gases including H2S and NH3. In addition, both FOS and the combination could significantly promote the growth of Bifidobacteria and Lactobacillus, lower environmental pH, and enhance several physiological functions related to synthesis and metabolism. Nevertheless, the combination had more unique benefits as it promoted the growth of Lactobacillus, significantly increased CO2 production and enhanced the functional pathways of carbon metabolism and pyruvic acid metabolism. These findings provide guidance for clinical application and a theoretical basis for the development of synbiotic preparations.
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Affiliation(s)
- Hao Fu
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Zhixian Chen
- National Key Laboratory of Agricultural Microbiology, Angel Yeast Co., Ltd., Yichang 443003, PR China; The Hubei Provincial Key Laboratory of Yeast Function, Angel Yeast Co., Ltd., Yichang 443003, PR China; Yi Chang Engineering and Technology Research Center of Nutrition and Health Food, Angel Yeast Co., Ltd., Yichang 443003, PR China
| | - Weilin Teng
- Department of infectious Disease Control and Prevention, HangZhou Center for Disease Control and Prevention, Hangzhou 310006, PR China
| | - Zhi Du
- Department of Pharmacy, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, PR China
| | - Yan Zhang
- National Key Laboratory of Agricultural Microbiology, Angel Yeast Co., Ltd., Yichang 443003, PR China; The Hubei Provincial Key Laboratory of Yeast Function, Angel Yeast Co., Ltd., Yichang 443003, PR China; Yi Chang Engineering and Technology Research Center of Nutrition and Health Food, Angel Yeast Co., Ltd., Yichang 443003, PR China
| | - Xiaoli Ye
- Department of Pharmacy, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, PR China
| | - Zaichun Yu
- College of Bioengineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Yinjun Zhang
- College of Bioengineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Xionge Pi
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Institute of Rural Development, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China.
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9
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Yang X, Sun Z. Association between weight-adjusted-waist index and bowel habits. Sci Rep 2024; 14:17658. [PMID: 39085333 PMCID: PMC11291746 DOI: 10.1038/s41598-024-66869-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Accepted: 07/04/2024] [Indexed: 08/02/2024] Open
Abstract
Obesity has become a global public health issue and is closely related to bowel habits. The Weight-Adjusted-Waist Index (WWI), a new indicator of obesity, provides a more accurate assessment of central obesity. This study aims to investigate the relationship between WWI and bowel habits. The 2005-2010 National Health and Nutrition Examination Survey (NHANES) dataset was used for the cross-sectional survey. Bowel habits were defined by self-report. Multiple logistic regression models were used to test the linear association of WWI with chronic diarrhea and constipation. Fitted smoothed curves and threshold effects analysis were used to characterize nonlinear relationships. Subgroup analyses and interaction tests were used to determine the heterogeneity and stability of the study. This population-based study included 14,238 adults (≥ 20 years). After adjusting for covariates, there was a significant positive association between WWI and chronic diarrhea (OR [95% CI] 1.27 [1.14, 1.41]). There was a non-linear association between WWI and chronic constipation, and we found a breakpoint of 9.77, with a positive correlation on the left side of the breakpoint and no statistical significance on the right side. Subgroup analyses and interaction tests showed stable and consistent results between WWI and bowel habits across the stratification factors. Elevated levels of WWI are associated with an increased risk of chronic diarrhea. A range of WWI < 9.77 is associated with an increased risk of chronic constipation. WWI is a stable valid indicator for assessing intestinal health in U.S. adults, and we should be mindful of the importance of maintaining good levels of body fat in our daily lives to maintain healthy bowel habits.
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Affiliation(s)
- Xiaoxian Yang
- First Clinical Medical College, Nanjing University of Chinese Medicine, 138 Xianlin Rd, Nanjing, China
| | - Zhiguang Sun
- First Clinical Medical College, Nanjing University of Chinese Medicine, 138 Xianlin Rd, Nanjing, China.
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10
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Lu S, Chen Y, Guo H, Liu Z, Du Y, Duan L. Differences in clinical manifestations and the fecal microbiome between irritable bowel syndrome and small intestinal bacterial overgrowth. Dig Liver Dis 2024:S1590-8658(24)00876-4. [PMID: 39043536 DOI: 10.1016/j.dld.2024.07.011] [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] [Received: 01/15/2024] [Revised: 07/04/2024] [Accepted: 07/06/2024] [Indexed: 07/25/2024]
Abstract
BACKGROUND Irritable bowel syndrome (IBS) and small intestinal bacterial overgrowth (SIBO) share similar abdominal symptoms; however, their differentiation remains controversial. AIMS To illustrate the differences between the two conditions. METHODS Patients and healthy controls completed questionnaires and provided stool samples for analysis. RESULTS IBS presented with the most severe symptoms and was specifically characterized by intense abdominal pain and frequent episodes of diarrhea. Patients with IBS displayed more dysregulated taxonomy within the fecal microbiota than SIBO. Opportunistic pathogens, including Lachnoclostridium, Escherichia-Shigella, and Enterobacter were enriched in the IBS group which contributed to increased bacterial pathogenicity and positively correlated with abdominal pain and bloating, meanwhile, Lachnoclostridium and Escherichia-Shigella were found to be associated with metabolites affiliated to bile acids, alcohols and derivatives. Bacteria enriched in SIBO group correlated with constipation. The bacterial co-occurrence network within the SIBO group was the most intricate. Ruminococcaceae Group were defined as core bacteria in SIBO. Differential metabolites affiliated to androstane steroids and phenylacetic acids were associated with core bacteria. CONCLUSIONS Our study elucidates the differences between IBS and SIBO in terms of symptoms, microbiota and functions, which provides insights into a better understanding of both diseases and evidence for different treatment strategies.
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Affiliation(s)
- Siqi Lu
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Yuzhu Chen
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Huaizhu Guo
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Zuojing Liu
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Yanlin Du
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Liping Duan
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China.
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11
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Gryaznova M, Smirnova Y, Burakova I, Morozova P, Lagutina S, Chizhkov P, Korneeva O, Syromyatnikov M. Fecal Microbiota Characteristics in Constipation-Predominant and Mixed-Type Irritable Bowel Syndrome. Microorganisms 2024; 12:1414. [PMID: 39065182 PMCID: PMC11278693 DOI: 10.3390/microorganisms12071414] [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: 06/20/2024] [Revised: 07/09/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND Irritable bowel syndrome (IBS) is a common condition that affects the lifestyle of patients. It is associated with significant changes in the composition of the gut microbiome, but the underlying microbial mechanisms remain to be fully understood. We study the fecal microbiome of patients with constipation-predominant IBS (IBS-C) and mixed-type IBS (IBS-M). METHODS We sequenced the V3 region of the 16S rRNA on the Ion Torrent PGM sequencing platform to study the microbiome. RESULTS In the patients with IBS-C and IBS-M, an increase in alpha diversity was found, compared to the healthy group, and differences in beta diversity were also noted. At the phylum level, both IBS subtypes showed an increase in the Firmicutes/Bacteroidetes ratio, as well as an increase in the abundance of Actinobacteria and Verrucomicrobiota. Changes in some types of bacteria were characteristic of only one of the IBS subtypes, while no statistically significant differences in the composition of the microbiome were detected between IBS-C and IBS-M. CONCLUSIONS This study was the first to demonstrate the association of Turicibacter sanguinis, Mitsuokella jalaludinii, Erysipelotrichaceae UCG-003, Senegalimassilia anaerobia, Corynebacterium jeikeium, Bacteroides faecichinchillae, Leuconostoc carnosum, and Parabacteroides merdae with IBS subtypes.
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Affiliation(s)
- Mariya Gryaznova
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
| | - Yuliya Smirnova
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
| | - Inna Burakova
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
| | - Polina Morozova
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia;
| | - Svetlana Lagutina
- Department of Polyclinic Therapy, Voronezh State Medical University Named after N.N. Burdenko, 394036 Voronezh, Russia;
| | - Pavel Chizhkov
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia;
| | - Olga Korneeva
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
| | - Mikhail Syromyatnikov
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia; (M.G.); (Y.S.); (I.B.); (P.M.); (O.K.)
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia;
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12
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JohnBritto JS, Di Ciaula A, Noto A, Cassano V, Sciacqua A, Khalil M, Portincasa P, Bonfrate L. Gender-specific insights into the irritable bowel syndrome pathophysiology. Focus on gut dysbiosis and permeability. Eur J Intern Med 2024; 125:10-18. [PMID: 38467533 DOI: 10.1016/j.ejim.2024.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 03/05/2024] [Indexed: 03/13/2024]
Abstract
Irritable bowel syndrome (IBS) is the most common functional gastrointestinal disorder involving the brain-gut interaction. IBS is characterized by persistent abdominal pain and changes in bowel habits. IBS exerts significant impacts on quality of life and imposes huge economic costs. Global epidemiological data reveal variations in IBS prevalence, both globally and between genders, necessitating comprehensive studies to uncover potential societal and cultural influences. While the exact pathophysiology of IBS remains incompletely understood, the mechanism involves a dysregulation of the brain-gut axis, leading to disturbed intestinal motility, local inflammation, altered intestinal permeability, visceral sensitivity, and gut microbiota composition. We reviewed several gender-related pathophysiological aspects of IBS pathophysiology, by focusing on gut dysbiosis and intestinal permeability. This perspective paves the way to personalized and multidimensional clinical management of individuals with IBS.
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Affiliation(s)
- Jerlin Stephy JohnBritto
- Clinica Medica "A. Murri", Department of Precision and Regenerative Medicine and Jonian Area (DiMePre-J), University of Bari Aldo Moro, Bari, Italy
| | - Agostino Di Ciaula
- Clinica Medica "A. Murri", Department of Precision and Regenerative Medicine and Jonian Area (DiMePre-J), University of Bari Aldo Moro, Bari, Italy
| | - Antonino Noto
- Clinica Medica "A. Murri", Department of Precision and Regenerative Medicine and Jonian Area (DiMePre-J), University of Bari Aldo Moro, Bari, Italy
| | - Velia Cassano
- Department of Medical and Surgical Sciences, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy
| | - Angela Sciacqua
- Department of Medical and Surgical Sciences, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy
| | - Mohamad Khalil
- Clinica Medica "A. Murri", Department of Precision and Regenerative Medicine and Jonian Area (DiMePre-J), University of Bari Aldo Moro, Bari, Italy
| | - Piero Portincasa
- Clinica Medica "A. Murri", Department of Precision and Regenerative Medicine and Jonian Area (DiMePre-J), University of Bari Aldo Moro, Bari, Italy.
| | - Leonilde Bonfrate
- Clinica Medica "A. Murri", Department of Precision and Regenerative Medicine and Jonian Area (DiMePre-J), University of Bari Aldo Moro, Bari, Italy
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13
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Liu P, Jing L, Guo F, Xu Y, Cheng J, Liu S, Liu L, Liu Z, Zhang K, Sun N. Characteristics of gut microbiota and its correlation with hs-CRP and somatic symptoms in first-episode treatment-naive major depressive disorder. J Affect Disord 2024; 356:664-671. [PMID: 38615845 DOI: 10.1016/j.jad.2024.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/16/2024]
Abstract
OBJECTIVE Most patients with major depressive disorder (MDD) have somatic symptoms, but little studies pay attention in the microbial-inflammatory mechanisms of these somatic symptoms. Our study aimed to investigate alterations in gut microbiota and its correlation with inflammatory marker levels and somatic symptoms in first-episode treatment-naive MDD. METHODS Subjects contained 160 MDD patients and 101 healthy controls (HCs). MDD patients were divided into MDD with somatic symptoms group (MDDS) and MDD without somatic symptoms group (MDDN) based on Somatic Self-rating Scale (SSS). 16S ribosomal RNA sequencing were performed to analyze the composition of the fecal microbiota. The inflammatory factors were measured using enzyme linked immunosorbent assay (ELISA). Correlation among the altered gut microbiota, inflammatory factor and severity of clinical symptoms were analysized. RESULTS Relative to HCs, MDD patients had higher levels of high-sensitivity C-reactive protein (hs-CRP) as well as disordered α-diversity and β-diversity of gut microbiota. Linear discriminant effect size (LEfSe) analysis showed that MDD patients had higher proportions of Bifidobacterium, Blautia, Haemophilus and lower proportions of Bacteroides, Faecalibacterium, Roseburia, Dialister, Sutterella, Parabacteroides, Bordetella, and Phascolarctobacterium from the genus aspect. Furthermore, correlation analysis showed Bacteroides and Roseburia had negative correlations with the hs-CRP, HAMD-24, the total and factor scores of SSS in all participants. Further, compared with MDDN, the Pielous evenness was higher in MDDS. Random Forest (RF) analysis showed 20 most important genera discriminating MDD-S and MDDN, HCs. The ROC analysis showed that the AUC was 0.90 and 0.81 combining these genera respectively. CONCLUSION Our study manifested MDD patients showed disordered gut microbiota and elevated hs-CRP levels, and altered gut microbiota was closely associated with hs-CRP, depressive symptoms, and somatic symptoms.
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Affiliation(s)
- Penghong Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Lin Jing
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Fengtao Guo
- Shanxi Medical University, Taiyuan 030001, PR China
| | - Yunfan Xu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Junxiang Cheng
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Shasha Liu
- Shanxi Medical University, Taiyuan 030001, PR China
| | - Lixin Liu
- Shanxi Medical University, Taiyuan 030001, PR China; Experimental Center of Science and Research, The First Hospital of Shanxi Medical University, PR China
| | - Zhifen Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China
| | - Kerang Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China.
| | - Ning Sun
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China.
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14
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Fedorin MM, Livzan MA, Gaus OV, Pashkova EV. Potential role of short-chain fatty acids in irritable bowel syndrome in overweight and obese individuals. MEDITSINSKIY SOVET = MEDICAL COUNCIL 2024:20-27. [DOI: 10.21518/ms2024-168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/17/2024]
Abstract
Due to increasing prevalence of functional diseases of the colon in obese patients, the mechanisms by which the intestinal microbiota affects the development of symptoms of irritable bowel syndrome (IBS) in the setting of metabolic activity of adipose tissue should be investigated. The quantitative and qualitative changes in the pool of synthesized short-chain fatty acids, which have a multidirectional impact on the colonic motility is one of the key mechanisms by which the intestinal microbiota affects the occurrence and features of the course of irritable bowel syndrome. But as regards the issue of whether individual short-chain fatty acids have an impact on the severity of abdominal pain and characteristics of colonic motility dysfunction, it remains a subject of discussions. The study of the mechanisms of impact of short-chain fatty acids on the development and progression of obesity deserves special attention. Increased serum and faecal short-chain fatty acid levels in obese patients can either be a result of changes in the intestinal microflora composition associated with special eating habits and lifestyle, or have an independent effect on the development of obesity in individuals due to intestinal microflora composition disorders that have been already developed. Due to special features of the course of irritable bowel syndrome associated with overweight and obesity, studying the intestinal microbiota composition and the short-chain fatty acids produced by it in this cohort of IBS patients is of particular interest. This publication has been prepared to describe and systematize the possible mechanisms of impact of short-chain fatty acids on the development of abdominal pain and impaired colonic motility in IBS patients with overweight and obesity. The literature search was conducted in the databases Embase, PubMed and Google Scholar using the keywords “irritable bowel syndrome”, “obesity”, “short-chain fatty acids”, “gut microbiota”.
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15
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Chen J, Lan H, Li C, Xie Y, Cheng X, Xia R, Ke C, Liang X. Gut microbial signatures of patients with diarrhea-predominant irritable bowel syndrome and their healthy relatives. J Appl Microbiol 2024; 135:lxae118. [PMID: 38849305 DOI: 10.1093/jambio/lxae118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 04/24/2024] [Accepted: 05/12/2024] [Indexed: 06/09/2024]
Abstract
AIMS Irritable bowel syndrome (IBS) is a prevalent gastrointestinal disorder, encompassing diarrhea-predominant irritable bowel syndrome (IBS-D). Here, we utilized 16S rDNA gene sequencing to identify potential microbial drivers of IBS-D. METHODS AND RESULTS A total of 30 healthy relatives and 27 patients with IBS-D were recruited. Clinical data and fecal samples were collected from patients and controls. 16S rDNA gene sequencing was performed to obtain fecal bacterial data. Differences in community composition were evaluated utilizing analysis of similarity (ANOSIM) using Bray-Curtis dissimilarity. The Wilcoxon rank sum test was used to compare differences in taxa and functional pathways. Finally, the key gut microbiota was identified using the random forest algorithm. Gut microbiota diversity, estimated through the Observe, Chao1, and abundance-based coverage estimator (ACE) indices, was significantly lower in the IBS-D patients than in the healthy relatives. ANOSIM analysis further confirmed significant differences in the composition of the gut microbiota between IBS-D patients and healthy relatives, with an R value of 0.106 and a P-value of 0.005. Notably, the IBS-D patients exhibited a significant enrichment of specific bacterial genera, including Fusicatenibacter, Streptococcus, and Klebsiella, which may possess potential pathogenic properties. In particular, the bacterial genus Klebsiella demonstrated a positive correlation with irritable bowel syndrome severity scoring system scores. Conversely, healthy subjects showed enrichment of bacterial genera such as Alistipes, Akkermansia, and Dialister, which may be beneficial bacteria in IBS-D. Utilizing the random forest model, we developed a discriminative model for IBS-D based on differential bacterial genera. This model exhibited impressive performance, with an area under the curve value of 0.90. Additionally, our analysis did not reveal any gender-specific differences in the microbiota community composition among IBS-D patients. CONCLUSIONS Our findings offer preliminary insights into the potential relationship between intestinal microbiota and IBS-D. The identification model for IBS-D, grounded in gut microbiota, holds promising prospects for improving early diagnosis of IBS-D.
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Affiliation(s)
- Jie Chen
- Department of Gastroenterology, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - Haibo Lan
- Department of Constipation, Chengdu Anorectal Hospital, Chengdu 610000, China
| | - Chenmeng Li
- Department of Clinical Laboratory, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen 361003, China
| | - Yongli Xie
- Department of Endocrinology, Pingxiang People's Hospital, Pingxiang 337000, China
| | - Xianhui Cheng
- Xiamen Treatgut Biotechnology Co., Ltd, Xiamen 361101, China
| | - Rongmu Xia
- Xiamen Treatgut Biotechnology Co., Ltd, Xiamen 361101, China
- Department of Gastroenterology, The Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou 350003, China
| | - Chunlin Ke
- Department of Radiotherapy, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Xuyang Liang
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People's Hospital of Lianyungang, Lianyungang 222061, China
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16
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Ford AC, Vanner S, Kashyap PC, Nasser Y. Chronic Visceral Pain: New Peripheral Mechanistic Insights and Resulting Treatments. Gastroenterology 2024; 166:976-994. [PMID: 38325759 PMCID: PMC11102851 DOI: 10.1053/j.gastro.2024.01.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/15/2023] [Accepted: 01/05/2024] [Indexed: 02/09/2024]
Abstract
Chronic visceral pain is one of the most common reasons for patients with gastrointestinal disorders, such as inflammatory bowel disease or disorders of brain-gut interaction, to seek medical attention. It represents a substantial burden to patients and is associated with anxiety, depression, reductions in quality of life, and impaired social functioning, as well as increased direct and indirect health care costs to society. Unfortunately, the diagnosis and treatment of chronic visceral pain is difficult, in part because our understanding of the underlying pathophysiologic basis is incomplete. In this review, we highlight recent advances in peripheral pain signaling and specific physiologic and pathophysiologic preclinical mechanisms that result in the sensitization of peripheral pain pathways. We focus on preclinical mechanisms that have been translated into treatment approaches and summarize the current evidence base for directing treatment toward these mechanisms of chronic visceral pain derived from clinical trials. The effective management of chronic visceral pain remains of critical importance for the quality of life of suffers. A deeper understanding of peripheral pain mechanisms is necessary and may provide the basis for novel therapeutic interventions.
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Affiliation(s)
- Alexander C Ford
- Leeds Institute of Medical Research at St. James's, University of |Leeds, Leeds, United Kingdom; Leeds Gastroenterology Institute, Leeds Teaching Hospitals National Health Service Trust, Leeds, United Kingdom
| | - Stephen Vanner
- Gastrointestinal Diseases Research Unit, Kingston General Hospital, Queen's University, Kingston, Ontario, Canada
| | - Purna C Kashyap
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Yasmin Nasser
- Snyder Institute for Chronic Diseases, Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
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17
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Masaud K, Collins JM, Rubio RC, Corrigan M, Cotter PD, O'Brien N, Bluett R, Jimenez CK, O'Mahony SM, Shorten GD. The gut microbiota in persistent post-operative pain following breast cancer surgery. Sci Rep 2024; 14:12401. [PMID: 38811609 PMCID: PMC11137075 DOI: 10.1038/s41598-024-62397-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 05/16/2024] [Indexed: 05/31/2024] Open
Abstract
Persistent post-surgical pain (PPSP) is defined as pain which continues after a surgical operation in a significant form for at least three months (and is not related to pre-existing painful conditions). PPSP is a common, under-recognised, and important clinical problem which affects millions of patients worldwide. Preventative measures which are currently available include the selection of a minimally invasive surgical technique and an aggressive multimodal perioperative analgesic regimen. More recently, a role for the gut microbiota in pain modulation has become increasingly apparent. This study aims to investigate any relationship between the gut microbiota and PPSP. A prospective observational study of 68 female adult patients undergoing surgery for management of breast cancer was carried out. Stool samples from 45 of these patients were obtained to analyse the composition of the gut microbiota. Measures of pain and state-trait anxiety were also taken to investigate further dimensions in any relationship between the gut microbiota and PPSP. At 12 weeks postoperatively, 21 patients (51.2%) did not have any pain and 20 patients (48.8%) reported feeling pain that persisted at that time. Analysis of the gut microbiota revealed significantly lower alpha diversity (using three measures) in those patients reporting severe pain at the 60 min post-operative and the 12 weeks post-operative timepoints. A cluster of taxa represented by Bifidobacterium longum, and Faecalibacterium prausnitzii was closely associated with those individuals reporting no pain at 12 weeks postoperatively, while Megamonas hypermegale, Bacteroides pectinophilus, Ruminococcus bromii, and Roseburia hominis clustered relatively closely in the group of patients fulfilling the criteria for persistent post-operative pain. We report for the first time specific associations between the gut microbiota composition and the presence or absence of PPSP. This may provide further insights into mechanisms behind the role of the gut microbiota in the development of PPSP and could inform future treatment strategies.
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Affiliation(s)
- Khaled Masaud
- Department of Anaesthesia and Intensive Care Medicine, Cork University Hospital and University College Cork, Cork, Ireland
| | - James M Collins
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Raul Cabrera Rubio
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Valencia, Spain
| | - Mark Corrigan
- Cork Breast Research Centre, University College Cork, Cork, Ireland
| | - Paul D Cotter
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
| | - Niall O'Brien
- Department of Anaesthesia and Intensive Care Medicine, Cork University Hospital and University College Cork, Cork, Ireland
| | - Ronan Bluett
- Department of Anaesthesia and Intensive Care Medicine, Cork University Hospital and University College Cork, Cork, Ireland
| | - Clare Keaveney Jimenez
- Department of Anaesthesia and Intensive Care Medicine, Cork University Hospital and University College Cork, Cork, Ireland
| | - Siobhain M O'Mahony
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - George D Shorten
- Department of Anaesthesia and Intensive Care Medicine, Cork University Hospital and University College Cork, Cork, Ireland.
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Tunali V, Arslan NÇ, Ermiş BH, Derviş Hakim G, Gündoğdu A, Hora M, Nalbantoğlu ÖU. A Multicenter Randomized Controlled Trial of Microbiome-Based Artificial Intelligence-Assisted Personalized Diet vs Low-Fermentable Oligosaccharides, Disaccharides, Monosaccharides, and Polyols Diet: A Novel Approach for the Management of Irritable Bowel Syndrome. Am J Gastroenterol 2024; 119:00000434-990000000-01162. [PMID: 38717025 PMCID: PMC11365594 DOI: 10.14309/ajg.0000000000002862] [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] [Received: 12/20/2023] [Accepted: 04/26/2024] [Indexed: 06/21/2024]
Abstract
INTRODUCTION Personalized management strategies are pivotal in addressing irritable bowel syndrome (IBS). This multicenter randomized controlled trial focuses on comparing the efficacy of a microbiome-based artificial intelligence-assisted personalized diet (PD) with a low-fermentable oligosaccharides, disaccharides, monosaccharides, and polyols diet (FODMAP) for IBS management. METHODS One hundred twenty-one patients participated, with 70 assigned to the PD group and 51 to the FODMAP diet group. IBS subtypes, demographics, symptom severity (IBS-SSS), anxiety, depression, and quality of life (IBS-QOL) were evaluated. Both interventions spanned 6 weeks. The trial's primary outcome was the within-individual difference in IBS-SSS compared between intervention groups. RESULTS For the primary outcome, there was a change in IBS-SSS of -112.7 for those in the PD group vs -99.9 for those in the FODMAP diet group ( P = 0.29). Significant improvement occurred in IBS-SSS scores ( P < 0.001), frequency ( P < 0.001), abdominal distension ( P < 0.001), and life interference ( P < 0.001) in both groups. In addition, there were significant improvements in anxiety levels and IBS-QOL scores for both groups ( P < 0.001). Importantly, PD was effective in reducing IBS SSS scores across all IBS subtypes IBS-Constipation (IBS-C; P < 0.001), IBS-Diarrhea (IBS-D; P = 0.01), and IBS-Mixed (IBS-M; P < 0.001) while FODMAP diet exhibited comparable improvements in IBS-C ( P = 0.004) and IBS-M ( P < 0.001). PD intervention significantly improved IBS-QOL scores for all subtypes (IBS-C [ P < 0.001], IBS-D [ P < 0.001], and IBS-M [ P = 0.008]) while the FODMAP diet did so for the IBS-C ( P = 0.004) and IBS-D ( P = 0.022). Notably, PD intervention led to significant microbiome diversity shifts ( P < 0.05) and taxa alterations compared with FODMAP diet. DISCUSSION The artificial intelligence-assisted PD emerges as a promising approach for comprehensive IBS management. With its ability to address individual variation, the PD approach demonstrates significant symptom relief, enhanced QOL, and notable diversity shifts in the gut microbiome, making it a valuable strategy in the evolving landscape of IBS care.
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Affiliation(s)
- Varol Tunali
- Department of Parasitology, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey
| | - Naciye Çiğdem Arslan
- Department of Gastrointestinal Surgery, Medipol Bahçelievler Hospital, Istanbul, Turkey
| | - Beyza Hilal Ermiş
- Faculty of Nutrition and Dietetics, Adnan Menderes University, Aydın, Turkey
| | - Gözde Derviş Hakim
- Department of Gastroenterology, Tepecik Education and Research Hospital, Izmir, Turkey
| | - Aycan Gündoğdu
- Department of Microbiology and Clinical Microbiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Mehmet Hora
- Bioinformatics Division, Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
| | - Özkan Ufuk Nalbantoğlu
- Bioinformatics Division, Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
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Niu Y, Hu X, Song Y, Wang C, Luo P, Ni S, Jiao F, Qiu J, Jiang W, Yang S, Chen J, Huang R, Jiang H, Chen S, Zhai Q, Xiao J, Guo F. Blautia Coccoides is a Newly Identified Bacterium Increased by Leucine Deprivation and has a Novel Function in Improving Metabolic Disorders. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309255. [PMID: 38429906 PMCID: PMC11095201 DOI: 10.1002/advs.202309255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/14/2024] [Indexed: 03/03/2024]
Abstract
Gut microbiota is linked to human metabolic diseases. The previous work showed that leucine deprivation improved metabolic dysfunction, but whether leucine deprivation alters certain specific species of bacterium that brings these benefits remains unclear. Here, this work finds that leucine deprivation alters gut microbiota composition, which is sufficient and necessary for the metabolic improvements induced by leucine deprivation. Among all the affected bacteria, B. coccoides is markedly increased in the feces of leucine-deprived mice. Moreover, gavage with B. coccoides improves insulin sensitivity and reduces body fat in high-fat diet (HFD) mice, and singly colonization of B. coccoides increases insulin sensitivity in gnotobiotic mice. The effects of B. coccoides are mediated by metabolizing tryptophan into indole-3-acetic acid (I3AA) that activates the aryl hydrocarbon receptor (AhR) in the liver. Finally, this work reveals that reduced fecal B. coccoides and I3AA levels are associated with the clinical metabolic syndrome. These findings suggest that B. coccoides is a newly identified bacterium increased by leucine deprivation, which improves metabolic disorders via metabolizing tryptophan into I3AA.
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Affiliation(s)
- Yuguo Niu
- Zhongshan HospitalState Key Laboratory of Medical NeurobiologyInstitute for Translational Brain ResearchMOE Frontiers Center for Brain ScienceFudan UniversityShanghai200032China
| | - Xiaoming Hu
- Zhongshan HospitalState Key Laboratory of Medical NeurobiologyInstitute for Translational Brain ResearchMOE Frontiers Center for Brain ScienceFudan UniversityShanghai200032China
| | - Yali Song
- Department of Metabolic and Bariatric Surgery and Clinical Research InstituteFirst Affiliated Hospital of Jinan UniversityGuangzhou510632China
| | - Cunchuan Wang
- Department of Metabolic and Bariatric Surgery and Clinical Research InstituteFirst Affiliated Hospital of Jinan UniversityGuangzhou510632China
| | - Peixiang Luo
- CAS Key Laboratory of NutritionMetabolism and Food SafetyInnovation Center for Intervention of Chronic Disease and Promotion of HealthShanghai Institute of Nutrition and HealthUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai200031China
| | - Shihong Ni
- Zhongshan HospitalState Key Laboratory of Medical NeurobiologyInstitute for Translational Brain ResearchMOE Frontiers Center for Brain ScienceFudan UniversityShanghai200032China
| | - Fuxin Jiao
- CAS Key Laboratory of NutritionMetabolism and Food SafetyInnovation Center for Intervention of Chronic Disease and Promotion of HealthShanghai Institute of Nutrition and HealthUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai200031China
| | - Ju Qiu
- CAS Key Laboratory of NutritionMetabolism and Food SafetyInnovation Center for Intervention of Chronic Disease and Promotion of HealthShanghai Institute of Nutrition and HealthUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai200031China
| | - Weihong Jiang
- Key Laboratory of Synthetic BiologyInstitute of Plant Physiology and EcologyCAS Center for Excellence in Molecular Plant ScienceShanghai200032China
| | - Sheng Yang
- Key Laboratory of Synthetic BiologyInstitute of Plant Physiology and EcologyCAS Center for Excellence in Molecular Plant ScienceShanghai200032China
| | - Jun Chen
- Key Laboratory of Synthetic BiologyInstitute of Plant Physiology and EcologyCAS Center for Excellence in Molecular Plant ScienceShanghai200032China
| | - Rui Huang
- CAS Key Laboratory of NutritionMetabolism and Food SafetyInnovation Center for Intervention of Chronic Disease and Promotion of HealthShanghai Institute of Nutrition and HealthUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai200031China
| | - Haizhou Jiang
- Zhongshan HospitalState Key Laboratory of Medical NeurobiologyInstitute for Translational Brain ResearchMOE Frontiers Center for Brain ScienceFudan UniversityShanghai200032China
| | - Shanghai Chen
- Zhongshan HospitalState Key Laboratory of Medical NeurobiologyInstitute for Translational Brain ResearchMOE Frontiers Center for Brain ScienceFudan UniversityShanghai200032China
| | - Qiwei Zhai
- CAS Key Laboratory of NutritionMetabolism and Food SafetyInnovation Center for Intervention of Chronic Disease and Promotion of HealthShanghai Institute of Nutrition and HealthUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai200031China
| | - Jia Xiao
- Department of Metabolic and Bariatric Surgery and Clinical Research InstituteFirst Affiliated Hospital of Jinan UniversityGuangzhou510632China
| | - Feifan Guo
- Zhongshan HospitalState Key Laboratory of Medical NeurobiologyInstitute for Translational Brain ResearchMOE Frontiers Center for Brain ScienceFudan UniversityShanghai200032China
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Saadh MJ, Ahmed HM, Alani ZK, Al Zuhairi RAH, Almarhoon ZM, Ahmad H, Ubaid M, Alwan NH. The Role of Gut-derived Short-Chain Fatty Acids in Multiple Sclerosis. Neuromolecular Med 2024; 26:14. [PMID: 38630350 DOI: 10.1007/s12017-024-08783-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 03/08/2024] [Indexed: 04/19/2024]
Abstract
Multiple sclerosis (MS) is a chronic condition affecting the central nervous system (CNS), where the interplay of genetic and environmental factors influences its pathophysiology, triggering immune responses and instigating inflammation. Contemporary research has been notably dedicated to investigating the contributions of gut microbiota and their metabolites in modulating inflammatory reactions within the CNS. Recent recognition of the gut microbiome and dietary patterns as environmental elements impacting MS development emphasizes the potential influence of small, ubiquitous molecules from microbiota, such as short-chain fatty acids (SCFAs). These molecules may serve as vital molecular signals or metabolic substances regulating host cellular metabolism in the intricate interplay between microbiota and the host. A current emphasis lies on optimizing the health-promoting attributes of colonic bacteria to mitigate urinary tract issues through dietary management. This review aims to spotlight recent investigations on the impact of SCFAs on immune cells pivotal in MS, the involvement of gut microbiota and SCFAs in MS development, and the considerable influence of probiotics on gastrointestinal disruptions in MS. Comprehending the gut-CNS connection holds promise for the development of innovative therapeutic approaches, particularly probiotic-based supplements, for managing MS.
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Affiliation(s)
- Mohamed J Saadh
- Faculty of Pharmacy, Middle East University, Amman, 11831, Jordan
| | - Hani Moslem Ahmed
- Department of Dental Industry Techniques, Al-Noor University College, Nineveh, Iraq
| | - Zaid Khalid Alani
- College of Health and Medical Technical, Al-Bayan University, Baghdad, Iraq
| | | | - Zainab M Almarhoon
- Department of Chemistry, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Hijaz Ahmad
- Section of Mathematics, International Telematic University Uninettuno, Corso Vittorio Emanuele II, 39, 00186, Rome, Italy.
- Center for Applied Mathematics and Bioinformatics, Gulf University for Science and Technology, Mubarak Al-Abdullah, Kuwait.
- Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon.
| | - Mohammed Ubaid
- Medical Technical College, Al-Farahidi University, Baghdad, Iraq
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Teige ES, Sortvik U, Lied GA. A Systematic Review: Fecal Bacterial Profile in Patients with Irritable Bowel Syndrome Analyzed with the GA-Map Dysbiosis Test Based on the 16S rRNA Gene of Bacterial Species or Groups. Clin Exp Gastroenterol 2024; 17:109-120. [PMID: 38646157 PMCID: PMC11032674 DOI: 10.2147/ceg.s451675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 03/20/2024] [Indexed: 04/23/2024] Open
Abstract
Purpose The diagnosis of irritable bowel syndrome (IBS) is based on symptom-based criteria due to lack of reliable disease-specific biomarkers. Gut microbiota is perturbed in IBS and when comparing different methods used to analyze gut microbiota, the results might be obscured. Therefore, in this systematic review we aimed to investigate the profile of fecal bacterial markers and dysbiosis index (DI) in patients with IBS and IBS subgroups compared to healthy controls (HCs) conducted by the same method (GA-map Dysbiosis Test based on16S rRNA sequencing). Material and Method We searched PubMed, EMBASE (Ovid) and Cochrane Library for case-control studies comparing fecal gut microbiota analyzed with the GA-map® Dysbiosis Test (Oslo, Norway) in patients with IBS and HCs. Our outcomes were the difference in fecal bacterial markers and DI in patients with IBS and IBS subgroups compared to HCs. Results The search identified 28 citations; five articles were included. Most studies evaluated fecal bacterial markers and DI in patients with diarrhea-predominant IBS (IBS-D). Results of fecal bacteria profile in IBS and IBS subgroups compared to HCs are inconsistent, however, two studies showed increased levels of Ruminococcus gnavus in IBS-D compared to HCs and results of DI indicated IBS and IBS subgroups (especially IBS-D) having higher DI compared to HCs. Conclusion This systematic review revealed inconsistent findings in respect to differences in bacterial markers between IBS and IBS subgroups with HCs in studies using the GA-map Dysbiosis Test based on 16S rRNA sequencing. However, the test is quite novel, and few studies have used the method so far. More research comparing fecal microbiota profile differences in IBS and IBS subgroups compared to HCs utilizing the same method of analysis is needed to give us further insight into the gut bacteria profile in IBS and the clinical consequences of intestinal dysbiosis.
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Affiliation(s)
- Erica Sande Teige
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Urd Sortvik
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Gülen Arslan Lied
- Centre for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway
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Jia W, Yu S, Liu X, Le Q, He X, Yu L, He J, Yang L, Gao H. Ethanol Extract of Limonium bicolor Improves Dextran Sulfate Sodium-Induced Ulcerative Colitis by Alleviating Inflammation and Restoring Gut Microbiota Dysbiosis in Mice. Mar Drugs 2024; 22:175. [PMID: 38667792 PMCID: PMC11050939 DOI: 10.3390/md22040175] [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: 03/02/2024] [Revised: 04/05/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Ulcerative colitis (UC) is a kind of inflammatory bowel condition characterized by inflammation within the mucous membrane, rectal bleeding, diarrhea, and pain experienced in the abdominal region. Existing medications for UC have limited treatment efficacy and primarily focus on symptom relief. Limonium bicolor (LB), an aquatic traditional Chinese medicine (TCM), exerts multi-targeted therapeutic effects with few side effects and is used to treat anemia and hemostasis. Nevertheless, the impact of LB on UC and its mechanism of action remain unclear. Therefore, the objective of this study was to investigate the anti-inflammatory effects and mechanism of action of ethanol extract of LB (LBE) in lipopolysaccharide-induced RAW 264.7 macrophages and dextran sulfate sodium (DSS)-induced UC. The results showed that LBE suppressed the secretion of cytokines in LPS-stimulated RAW 264.7 cells in a dose-dependent manner. LBE had protective effects against DSS-induced colitis in mice, decreased the disease activity index (DAI) score, alleviated symptoms, increased colon length, and improved histological characteristics, thus having protective effects against DSS-induced colitis in mice. In addition, it reversed disturbances in the abundance of proteobacteria and probiotics such as Lactobacillus and Blautia in mice with DSS-induced UC. Based on the results of network pharmacology analysis, we identified four main compounds in LBE that are associated with five inflammatory genes (Ptgs2, Plg, Ppar-γ, F2, and Gpr35). These results improve comprehension of the biological activity and functionality of LB and may facilitate the development of LB-based compounds for the treatment of UC.
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Affiliation(s)
- Wei Jia
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; (W.J.); (S.Y.); (L.Y.)
- Technical Innovation Center for Utilization of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361000, China; (Q.L.); (X.H.); (J.H.)
| | - Siyu Yu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; (W.J.); (S.Y.); (L.Y.)
- Technical Innovation Center for Utilization of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361000, China; (Q.L.); (X.H.); (J.H.)
| | - Xi Liu
- Key Laboratory of Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361000, China;
| | - Qingqing Le
- Technical Innovation Center for Utilization of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361000, China; (Q.L.); (X.H.); (J.H.)
| | - Xiwen He
- Technical Innovation Center for Utilization of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361000, China; (Q.L.); (X.H.); (J.H.)
| | - Lutao Yu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; (W.J.); (S.Y.); (L.Y.)
- Technical Innovation Center for Utilization of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361000, China; (Q.L.); (X.H.); (J.H.)
| | - Jianlin He
- Technical Innovation Center for Utilization of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361000, China; (Q.L.); (X.H.); (J.H.)
- Fujian Key Laboratory of Island Monitoring and Ecological Development (Island Research Center, Ministry of Natural Resources), Fuzhou 350400, China
| | - Longhe Yang
- Technical Innovation Center for Utilization of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361000, China; (Q.L.); (X.H.); (J.H.)
- Fujian Key Laboratory of Island Monitoring and Ecological Development (Island Research Center, Ministry of Natural Resources), Fuzhou 350400, China
| | - Huiyuan Gao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; (W.J.); (S.Y.); (L.Y.)
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Wan S, You P, Shi Q, Hu H, Zhang L, Chen L, Wu Z, Lin S, Song X, Luo Y, Wang Y, Ju F, Jin D, Chen Y. Gut microbiome changes in mouse, Mongolian gerbil, and hamster models following Clostridioides difficile challenge. Front Microbiol 2024; 15:1368194. [PMID: 38638911 PMCID: PMC11024471 DOI: 10.3389/fmicb.2024.1368194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 03/11/2024] [Indexed: 04/20/2024] Open
Abstract
Introduction Clostridioides difficile infection (CDI), as well as its etiology and pathogenesis, have been extensively investigated. However, the absence of suitable CDI animal models that reflect CDI symptoms and the associated gut microbiome changes in humans has limited research progress in this field. Thus, we aimed to investigate whether Mongolian gerbils, which present a range of human pathological conditions, can been used in studies on CDI. Methods: In this study, we infected Mongolian gerbils and two existing CDI model animals, mice and hamsters, with the hypervirulent ribotype 027 C. difficile strain, and comparatively analyzed changes in their gut microbiome composition via 16S rRNA gene sequencing. Methods In this study, we infected Mongolian gerbils and two existing CDI model animals, mice and hamsters, with the hypervirulent ribotype 027 C. difficile strain, and comparatively analyzed changes in their gut microbiome composition via 16S rRNA gene sequencing. Results The results obtained showed that C. difficile colonized the gastrointestinal tracts of the three rodents, and after the C. difficile challenge, C57BL/6J mice did not manifest CDI symptoms and their intestines showed no significant pathological changes. However, the hamsters showed explosive intestinal bleeding and inflammation and the Mongolian gerbils presented diarrhea as well as increased infiltration of inflammatory cells, mucus secretion, and epithelial cell shedding in their intestinal tissue. Further, intestinal microbiome analysis revealed significant differences with respect to intestinal flora abundance and diversity. Specifically, after C. difficile challenge, the Firmicutes/Bacteroidetes ratio decreased for C57BL/6J mice, but increased significantly for Mongolian gerbils and hamsters. Furthermore, the abundance of Proteobacteria increased in all three models, especially in hamsters, while that of Verrucomicrobia only increased significantly in C57BL/6J mice and Mongolian gerbils. Our results also indicated that differences in the relative abundances of Lactobacillaceae and Akkermansia were primarily responsible for the observed differences in response to C. difficile challenge. Conclusion Based on the observed responses to C. difficile challenge, we concluded for the first time that the Mongolian gerbil could be used as an animal model for CDI. Additionally, the taxa identified in this study may be used as biomarkers for further studies on CDI and to improve understanding regarding changes in gut microbiome in CDI-related diseases.
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Affiliation(s)
- Shuangshuang Wan
- School of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Biomarkers and In Vitro Diagnosis Translation of Zhejiang Province, Hangzhou, China
| | - Peijun You
- School of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China
| | - Qikai Shi
- School of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China
| | - Hui Hu
- School of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Biomarkers and In Vitro Diagnosis Translation of Zhejiang Province, Hangzhou, China
| | - Lu Zhang
- Environmental Microbiome and Biotechnology Laboratory, School of Engineering, Westlake University, Hangzhou, China
| | - Leyang Chen
- School of Clinical Medicine, Hangzhou Medical College, Hangzhou, China
| | - Ziyi Wu
- School of Clinical Medicine, Hangzhou Medical College, Hangzhou, China
| | - Shan Lin
- School of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin, China
| | - Xiaojun Song
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Yongneng Luo
- School of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Biomarkers and In Vitro Diagnosis Translation of Zhejiang Province, Hangzhou, China
| | - Yaxuan Wang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
| | - Feng Ju
- Environmental Microbiome and Biotechnology Laboratory, School of Engineering, Westlake University, Hangzhou, China
| | - Dazhi Jin
- School of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Biomarkers and In Vitro Diagnosis Translation of Zhejiang Province, Hangzhou, China
| | - Yu Chen
- School of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Biomarkers and In Vitro Diagnosis Translation of Zhejiang Province, Hangzhou, China
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Ma X, Huan H, Liu C, Hu H, Ren T. Influence of ethnic origin on the clinical characteristics and intestinal flora of irritable bowel syndrome: a prospective study between Han and Tibetan patients. Front Med (Lausanne) 2024; 11:1359962. [PMID: 38638935 PMCID: PMC11024223 DOI: 10.3389/fmed.2024.1359962] [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: 12/22/2023] [Accepted: 03/08/2024] [Indexed: 04/20/2024] Open
Abstract
Background Few studies have focused on the clinical characteristics and intestinal flora of Tibetan patients with irritable bowel syndrome (IBS). The study aimed to compare the difference of between Tibetan and Han patients with IBS. Methods Patients who met inclusion and exclusion criteria were divided into the Tibet and Han groups. A simplified Gastrointestinal Symptom Rating Scale (GSRS)-based questionnaire was used to assess the IBS severity. Fecal samples from all subjects were collected for the analysis of gut microbiota using 16sRNA Illumina sequencing. Results No significant difference was found in the total symptom scores between two groups. However, Tibetans with IBS are more prone to bloating than Hans (17.41% vs 9.09%, p < 0.001). A profit shift in the gut microbiota was shown between the two groups. The ratio of Firmicutes/Bacteroidetes was significantly lower in the Tibet group than in the Han group (2.954 ± 0.78 vs 8.23 ± 2.04, p = 0.004). In the Tibet group, the level of the genus Blautia decreased significantly compared to the Han group, and there was a significant negative correlation between the level of Blautia and the bloating scores (Pearson r = -0.33, p = 0.025). Conclusion The characteristics of Tibetan patients differ from those of Han patients with IBS, not only in terms of the clinical symptoms, but also in the characteristics of intestinal flora. Tibetans with IBS are more prone to bloating, which might be due to the different gut microbiota. The genus Blautia may play a role in this mechanism.
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Affiliation(s)
- Xiao Ma
- Department of Pediatrics Gastroenterology, West China Second Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Hui Huan
- Department of Gastroenterology, Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region, Chengdu, China
| | - Chao Liu
- Department of Gastroenterology, Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region, Chengdu, China
| | - Hong Hu
- Department of Gastroenterology, Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region, Chengdu, China
| | - Tao Ren
- Department of Gastroenterology, Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region, Chengdu, China
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Schmidt N, Van Den Ham K, Bower L, Li S, Lorenzi H, Doumbo S, Doumtabe D, Kayentao K, Ongoiba A, Traore B, Crompton P. Susceptibility to febrile malaria is associated with an inflammatory gut microbiome. RESEARCH SQUARE 2024:rs.3.rs-3974068. [PMID: 38645126 PMCID: PMC11030534 DOI: 10.21203/rs.3.rs-3974068/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Malaria is a major public health problem, but many of the factors underlying the pathogenesis of this disease are not well understood. Here, we demonstrate in Malian children that susceptibility to febrile malaria following infection with Plasmodium falciparum is associated with the composition of the gut microbiome prior to the malaria season. Gnotobiotic mice colonized with the fecal samples of malaria-susceptible children had a significantly higher parasite burden following Plasmodium infection compared to gnotobiotic mice colonized with the fecal samples of malaria-resistant children. The fecal microbiome of the susceptible children was enriched for bacteria associated with inflammation, mucin degradation, gut permeability and inflammatory bowel disorders (e.g., Ruminococcus gauvreauii, Ruminococcus torques, Dorea formicigenerans, Dorea longicatena, Lachnoclostridium phocaeense and Lachnoclostridium sp. YL32). However, the susceptible children also had a greater abundance of bacteria known to produce anti-inflammatory short-chain fatty acids and those associated with favorable prognosis and remission following dysbiotic intestinal events (e.g., Anaerobutyricum hallii, Blautia producta and Sellimonas intestinalis). Metabolomics analysis of the human fecal samples corroborated the existence of inflammatory and recovery-associated features within the gut microbiome of the susceptible children. There was an enrichment of nitric oxide-derived DNA adducts (deoxyinosine and deoxyuridine) and long-chain fatty acids, the absorption of which has been shown to be inhibited by inflamed intestinal epithelial cells, and a decrease in the abundance of mucus phospholipids. Nevertheless, there were also increased levels of pseudouridine and hypoxanthine, which have been shown to be regulated in response to cellular stress and to promote recovery following injury or hypoxia. Overall, these results indicate that the gut microbiome may contribute malaria pathogenesis and suggest that therapies targeting intestinal inflammation could decrease malaria susceptibility.
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Kiecka A, Szczepanik M. Migraine and the microbiota. Can probiotics be beneficial in its prevention? - a narrative review. Pharmacol Rep 2024; 76:251-262. [PMID: 38502301 DOI: 10.1007/s43440-024-00584-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/01/2024] [Accepted: 03/03/2024] [Indexed: 03/21/2024]
Abstract
Migraine is a recurrent disease of the central nervous system that affects an increasing number of people worldwide causing a continuous increase in the costs of treatment. The mechanisms underlying migraine are still unclear but recent reports show that people with migraine may have an altered composition of the intestinal microbiota. It is well established that the gut-brain axis is involved in many neurological diseases, and probiotic supplementation may be an interesting treatment option for these conditions. This review collects data on the gastrointestinal and oral microbiota in people suffering from migraine and the use of probiotics as a novel therapeutic approach in its treatment.
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Affiliation(s)
- Aneta Kiecka
- Faculty of Health Sciences, Institute of Physiotherapy, Chair of Biomedical Sciences, Jagiellonian University Medical College, Kopernika 7a, Kraków, 31-034, Poland.
| | - Marian Szczepanik
- Faculty of Health Sciences, Institute of Physiotherapy, Chair of Biomedical Sciences, Jagiellonian University Medical College, Kopernika 7a, Kraków, 31-034, Poland
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Liu J, Dai Q, Qu T, Ma J, Lv C, Wang H, Yu Y. Ameliorating effects of transcutaneous auricular vagus nerve stimulation on a mouse model of constipation-predominant irritable bowel syndrome. Neurobiol Dis 2024; 193:106440. [PMID: 38369213 DOI: 10.1016/j.nbd.2024.106440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/05/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024] Open
Abstract
Limited treatment options have been shown to alter the natural course of constipation-predominant irritable bowel syndrome (IBS-C). Therefore, safer and more effective approaches are urgently needed. We investigated the effects of transcutaneous auricular vagus nerve stimulation (taVNS) in a mouse model of IBS-C. In the current study, C57BL/6 mice were randomly divided into normal control, IBS-C model control, sham-electrostimulation (sham-ES), taVNS, and drug treatment groups. The effects of taVNS on fecal pellet number, fecal water content, and gastrointestinal transit were evaluated in IBS-C model mice. We assessed the effect of taVNS on visceral hypersensitivity using the colorectal distention test. 16S rRNA sequencing was used to analyze the fecal microbiota of the experimental groups. First, we found that taVNS increased fecal pellet number, fecal water content, and gastrointestinal transit in IBS-C model mice compared with the sham-ES group. Second, taVNS significantly decreased the abdominal withdrawal reflex (AWR) score compared with the sham-ES group, thus relieving visceral hyperalgesia. Third, the gut microbiota outcomes showed that taVNS restored Lactobacillus abundance while increasing Bifidobacterium probiotic abundance at the genus level. Notably, taVNS increased the number of c-kit-positive interstitial cells of Cajal (ICC) in the myenteric plexus region in IBS-C mice compared with the sham-ES group. Therefore, our study indicated that taVNS effectively ameliorated IBS-C in the gut microbiota and ICC.
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Affiliation(s)
- Jie Liu
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Qian Dai
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230001, Anhui Province, China
| | - Tong Qu
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230001, Anhui Province, China
| | - Jun Ma
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Chaolan Lv
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Haitao Wang
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230001, Anhui Province, China.
| | - Yue Yu
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China.
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Pak R, Cho M, Pride K, Abd-Elsayed A. The Gut Microbiota and Chronic Pain. Curr Pain Headache Rep 2024; 28:259-269. [PMID: 38345694 DOI: 10.1007/s11916-024-01221-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2024] [Indexed: 03/16/2024]
Abstract
PURPOSE OF REVIEW To examine the effects and interactions between gut microbia and chronic pain. RECENT FINDINGS The gut microbiome has been an area of interest in both the scientific and general audience due to a growing body of evidence suggesting its influence in a variety of health and disease states. Communication between the central nervous system (CNS) and gut microbiome is said to be bidirectional, in what is referred to as the gut-brain axis. Chronic pain is a prevalent costly personal and public health burden and so, there is a vested interest in devising safe and efficacious treatments. Numerous studies, many of which are animal studies, have been conducted to examine the gut microbiome's role in the pathophysiology of chronic pain states, such as neuropathy, inflammation, visceral pain, etc. As the understanding of this relationship grows, so does the potential for therapeutic targeting of the gut microbiome in chronic pain.
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Affiliation(s)
- Ray Pak
- Department of Physical Medicine and Rehabilitation, New York Medical College/Metropolitan, New York, NY, USA
| | - Michelle Cho
- Department of Physical Medicine and Rehabilitation, New York Medical College/Metropolitan, New York, NY, USA
| | - Keth Pride
- Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue, B6/319 CSC, Madison, WI, 53792-3272, USA
| | - Alaa Abd-Elsayed
- Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue, B6/319 CSC, Madison, WI, 53792-3272, USA.
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Hsiao YK, Lee BH, Wu SC. Lactiplantibacillus plantarum-encapsulated microcapsules prepared from okra polysaccharides improved intestinal microbiota in Alzheimer's disease mice. Front Microbiol 2024; 15:1305617. [PMID: 38562470 PMCID: PMC10982412 DOI: 10.3389/fmicb.2024.1305617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/26/2024] [Indexed: 04/04/2024] Open
Abstract
Background Okra contains a viscous substance rich in water-soluble material, including fibers, pectin, proteoglycans, gum, and polysaccharides. This study explored the use of okra polysaccharides by microorganisms and their potential to improve microbiota. Methods The regulation of microcapsules prepared from okra polysaccharides with or without L. plantarum encapsulation on intestinal microbiota was assessed through 16S metagenomic analysis and short-chain fatty acids (SCFAs) in AppNL-G-F/NL-G-F mice (Alzheimer's disease; AD model). Results We found that Lactobacillaceae and Lactobacillus were majorly regulated by microcapsules prepared from okra polysaccharides in AD mice. Similarly, microcapsules prepared from okra polysaccharides with L. plantarum encapsulation markedly elevated the abundance of Lactobacillaceae and Lactobacillus and increased SCFAs in AD mice. Conclusion Our results suggest that microcapsules prepared from okra polysaccharides with or without L. plantarum encapsulation may improve intestinal microbiota by elevating Lactobacillus levels in AD mice.
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Affiliation(s)
- Yao-Kun Hsiao
- King Long Guan Company Ltd., Chiayi, Taiwan
- Department of Food Sciences, National Chiayi University, Chiayi, Taiwan
| | - Bao-Hong Lee
- Department of Horticultural Science, National Chiayi University, Chiayi, Taiwan
| | - She-Ching Wu
- Department of Food Sciences, National Chiayi University, Chiayi, Taiwan
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30
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Zißler J, Rothhammer V, Linnerbauer M. Gut-Brain Interactions and Their Impact on Astrocytes in the Context of Multiple Sclerosis and Beyond. Cells 2024; 13:497. [PMID: 38534341 DOI: 10.3390/cells13060497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/04/2024] [Accepted: 03/12/2024] [Indexed: 03/28/2024] Open
Abstract
Multiple Sclerosis (MS) is a chronic autoimmune inflammatory disease of the central nervous system (CNS) that leads to physical and cognitive impairment in young adults. The increasing prevalence of MS underscores the critical need for innovative therapeutic approaches. Recent advances in neuroimmunology have highlighted the significant role of the gut microbiome in MS pathology, unveiling distinct alterations in patients' gut microbiota. Dysbiosis not only impacts gut-intrinsic processes but also influences the production of bacterial metabolites and hormones, which can regulate processes in remote tissues, such as the CNS. Central to this paradigm is the gut-brain axis, a bidirectional communication network linking the gastrointestinal tract to the brain and spinal cord. Via specific routes, bacterial metabolites and hormones can influence CNS-resident cells and processes both directly and indirectly. Exploiting this axis, novel therapeutic interventions, including pro- and prebiotic treatments, have emerged as promising avenues with the aim of mitigating the severity of MS. This review delves into the complex interplay between the gut microbiome and the brain in the context of MS, summarizing current knowledge on the key signals of cross-organ crosstalk, routes of communication, and potential therapeutic relevance of the gut microbiome. Moreover, this review places particular emphasis on elucidating the influence of these interactions on astrocyte functions within the CNS, offering insights into their role in MS pathophysiology and potential therapeutic interventions.
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Affiliation(s)
- Julia Zißler
- Department of Neurology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, 91054 Erlangen, Germany
| | - Veit Rothhammer
- Department of Neurology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, 91054 Erlangen, Germany
| | - Mathias Linnerbauer
- Department of Neurology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, 91054 Erlangen, Germany
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Jeong JJ, Jin YJ, Ganesan R, Park HJ, Min BH, Jeong MK, Yoon SJ, Choi MR, Sharma SP, Jang YJ, Min U, Lim JH, Na KM, Choi J, Han SH, Ham YL, Lee DY, Kim BY, Suk KT. Multistrain Probiotics Alleviate Diarrhea by Modulating Microbiome-Derived Metabolites and Serotonin Pathway. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10232-4. [PMID: 38467925 DOI: 10.1007/s12602-024-10232-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2024] [Indexed: 03/13/2024]
Abstract
Diarrhea, a common gastrointestinal symptom in health problems, is highly associated with gut dysbiosis. The purpose of this study is to demonstrate the effect of multistrain probiotics (Sensi-Biome) on diarrhea from the perspective of the microbiome-neuron axis. Sensi-Biome (Lactiplantibacillus plantarum, Bifidobacterium animalis subsp. lactis, Lactobacillus acidophilus, Streptococcus thermophilus, Bifidobacterium bifidum, and Lactococcus lactis) was administered in a 4% acetic acid-induced diarrhea rat model at concentrations of 1 × 108 (G1), 1 × 109 (G2), and 1 × 1010 CFU/0.5 mL (G3). Diarrhea-related parameters, inflammation-related cytokines, and stool microbiota analysis by 16S rRNA were evaluated. A targeted and untargeted metabolomics approach was used to analyze the cecum samples using liquid chromatography and orbitrap mass spectrometry. The stool moisture content (p < 0.001), intestinal movement rate (p < 0.05), and pH (p < 0.05) were significantly recovered in G3. Serotonin levels were decreased in the multistrain probiotics groups. The inflammatory cytokines, serotonin, and tryptophan hydroxylase expression were improved in the Sensi-Biome groups. At the phylum level, Sensi-Biome showed the highest relative abundance of Firmicutes. Short-chain fatty acids including butyrate, iso-butyrate, propionate, and iso-valeric acid were significantly modified in the Sensi-Biome groups. Equol and oleamide were significantly improved in the multistrain probiotics groups. In conclusion, Sensi-Biome effectively controls diarrhea by modulating metabolites and the serotonin pathway.
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Affiliation(s)
- Jin-Ju Jeong
- Institute for Liver and Digestive Disease, College of Medicine, Hallym University, Chuncheon, Korea
| | - Yoo-Jeong Jin
- R&D Center, Chong Kun Dang Healthcare, Seoul, Republic of Korea
| | - Raja Ganesan
- Institute for Liver and Digestive Disease, College of Medicine, Hallym University, Chuncheon, Korea
| | - Hee Jin Park
- Institute for Liver and Digestive Disease, College of Medicine, Hallym University, Chuncheon, Korea
| | - Byeong Hyun Min
- Institute for Liver and Digestive Disease, College of Medicine, Hallym University, Chuncheon, Korea
| | - Min Kyo Jeong
- Institute for Liver and Digestive Disease, College of Medicine, Hallym University, Chuncheon, Korea
| | - Sang Jun Yoon
- Institute for Liver and Digestive Disease, College of Medicine, Hallym University, Chuncheon, Korea
| | - Mi Ran Choi
- Institute for Liver and Digestive Disease, College of Medicine, Hallym University, Chuncheon, Korea
| | - Satya Priya Sharma
- Institute for Liver and Digestive Disease, College of Medicine, Hallym University, Chuncheon, Korea
| | - You Jin Jang
- R&D Center, Chong Kun Dang Healthcare, Seoul, Republic of Korea
| | - Uigi Min
- R&D Center, Chong Kun Dang Healthcare, Seoul, Republic of Korea
| | - Jong-Hyun Lim
- R&D Center, Chong Kun Dang Healthcare, Seoul, Republic of Korea
| | - Kyeong Min Na
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, Research Institute of Agricultural and Life Sciences, Seoul National University, Seoul, Korea
| | - Jieun Choi
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, Research Institute of Agricultural and Life Sciences, Seoul National University, Seoul, Korea
| | - Sang Hak Han
- Department of Pathology, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Young Lim Ham
- Department of Nursing, Daewon University College Jecheon, Jecheon, Republic of Korea
| | - Do Yup Lee
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, Research Institute of Agricultural and Life Sciences, Seoul National University, Seoul, Korea.
| | - Byung-Yong Kim
- R&D Center, Chong Kun Dang Healthcare, Seoul, Republic of Korea.
| | - Ki Tae Suk
- Institute for Liver and Digestive Disease, College of Medicine, Hallym University, Chuncheon, Korea.
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Iribarren C, Savolainen O, Sapnara M, Törnblom H, Simrén M, Magnusson MK, Öhman L. Temporal stability of fecal metabolomic profiles in irritable bowel syndrome. Neurogastroenterol Motil 2024; 36:e14741. [PMID: 38243381 DOI: 10.1111/nmo.14741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 11/15/2023] [Accepted: 01/04/2024] [Indexed: 01/21/2024]
Abstract
BACKGROUND The potential of the fecal metabolome to serve as a biomarker for irritable bowel syndrome (IBS) depends on its stability over time. Therefore, this study aimed to determine the temporal dynamics of the fecal metabolome, and the potential relationship with stool consistency, in patients with IBS and healthy subjects. METHODS Fecal samples were collected in two cohorts comprising patients with IBS and healthy subjects. For Cohort A, fecal samples collected during 5 consecutive days were analyzed by gas chromatography-tandem mass spectrometry (GC-MS/MS). For Cohort B, liquid chromatography-MS (LC-MS) was used to analyze fecal samples collected at week 0 (healthy and IBS) and at week 4 (patients only). Stool consistency was determined by the Bristol Stool Form scale. KEY RESULTS Fecal samples were collected from Cohort A (seven healthy subjects and eight IBS patients), and Cohort B (seven healthy subjects and 11 IBS patients). The fecal metabolome of IBS patients was stable short-term (Cohort A, 5 days and within the same day) and long-term (Cohort B, 4 weeks). A similar trend was observed over 5 days in the healthy subjects of Cohort A. The metabolome dissimilarity was larger between than within participants over time in both healthy subjects and IBS patients. Further analyses showed that patients had greater range of stool forms (types) than healthy subjects, with no apparent influence on metabolomic dynamics. CONCLUSION & INFERENCES The fecal metabolome is stable over time within IBS patients as well as healthy subjects. This supports the concept of a stable fecal metabolome in IBS despite fluctuations in stool consistency, and the use of single timepoint sampling to further explore how the fecal metabolome is related to IBS pathogenesis.
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Affiliation(s)
- Cristina Iribarren
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Otto Savolainen
- Chalmers Mass Spectrometry Infrastructure, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Maria Sapnara
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Hans Törnblom
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Magnus Simrén
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Center for Functional Gastrointestinal and Motility Disorders, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Maria K Magnusson
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lena Öhman
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Yang H, Lan W, Luo C, Huang Q, Zhong Z, Yang J, Xiang H, Chen T, Tang Y. Lactobacillus plantarum 24-7 improves postoperative bloating and hard stools by modulating intestinal microbiota in patients with congenital heart disease: a randomized controlled trial. Food Funct 2024; 15:2090-2102. [PMID: 38304947 DOI: 10.1039/d3fo05452g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Gastrointestinal symptoms are a common postoperative complication in patients with congenital heart disease (CHD), affecting their postoperative recovery. Probiotic intervention may be a promising therapeutic approach to alleviate postoperative gastrointestinal symptoms. This study aimed to evaluate the potential of Lactobacillus plantarum 24-7 (L. plantarum 24-7) in mitigating postoperative gastrointestinal symptoms and promoting patient recovery. Adult CHD patients scheduled for surgical intervention were recruited. One hundred and twenty patients were randomized and received L. plantarum or placebo intervention twice daily for ten days. Gastrointestinal symptoms were assessed utilizing the Gastrointestinal Symptom Rating Scale (GSRS). Various postoperative variables were analyzed across both groups. Alterations in gut microbiota were evaluated through 16S rRNA sequencing. 112 patients completed the study, with 55 in the probiotic group and 57 in the placebo group. While the disparity in overall postoperative GSRS scores between the two groups did not reach statistical significance (P = 0.067), marked differences were observed in bloating (P = 0.004) and hard stool (P = 0.030) scores. Furthermore, individuals within the probiotic group exhibited lower postoperative neutrophil counts (P = 0.007) and concurrently higher lymphocyte counts (P = 0.001). Variations in the diversity and composition of postoperative gut microbiota were discerned between the probiotic and placebo groups. Remarkably, no probiotic-related adverse events were documented. Supplementation with L. plantarum was well-tolerated and demonstrated partial efficacy in ameliorating gastrointestinal symptoms in postoperative CHD patients. Modulating the gut microbiota may be a potential mechanism by which L. plantarum exerts clinical benefits.
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Affiliation(s)
- Heng Yang
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
- The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Wanqi Lan
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
- The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Chao Luo
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
- The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Qin Huang
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
- The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Zhiwang Zhong
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
- The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Juesheng Yang
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
| | - Haiyan Xiang
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
| | - Tingtao Chen
- The Institute of Translational Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China.
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Yanhua Tang
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
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Lluansí A, Llirós M, Carreras-Torres R, Bahí A, Capdevila M, Feliu A, Vilà-Quintana L, Elias-Masiques N, Cueva E, Peries L, Torrealba L, Miquel-Cusachs JO, Sàbat M, Busquets D, López C, Delgado-Aros S, Garcia-Gil LJ, Elias I, Aldeguer X. Impact of bread diet on intestinal dysbiosis and irritable bowel syndrome symptoms in quiescent ulcerative colitis: A pilot study. PLoS One 2024; 19:e0297836. [PMID: 38363772 PMCID: PMC10871487 DOI: 10.1371/journal.pone.0297836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 01/11/2024] [Indexed: 02/18/2024] Open
Abstract
Gut microbiota may be involved in the presence of irritable bowel syndrome (IBS)-like symptomatology in ulcerative colitis (UC) patients in remission. Bread is an important source of dietary fiber, and a potential prebiotic. To assess the effect of a bread baked using traditional elaboration, in comparison with using modern elaboration procedures, in changing the gut microbiota and relieving IBS-like symptoms in patients with quiescent ulcerative colitis. Thirty-one UC patients in remission with IBS-like symptoms were randomly assigned to a dietary intervention with 200 g/d of either treatment or control bread for 8 weeks. Clinical symptomatology was tested using questionnaires and inflammatory parameters. Changes in fecal microbiota composition were assessed by high-throughput sequencing of the 16S rRNA gene. A decrease in IBS-like symptomatology was observed after both the treatment and control bread interventions as reductions in IBS-Symptom Severity Score values (p-value < 0.001) and presence of abdominal pain (p-value < 0.001). The treatment bread suggestively reduced the Firmicutes/Bacteroidetes ratio (p-value = 0.058). In addition, the Firmicutes/Bacteroidetes ratio seemed to be associated with improving IBS-like symptoms as suggested by a slight decrease in patient without abdominal pain (p-value = 0.059). No statistically significant differential abundances were found at any taxonomic level. The intake of a bread baked using traditional elaboration decreased the Firmicutes/Bacteroidetes ratio, which seemed to be associated with improving IBS-like symptoms in quiescent ulcerative colitis patients. These findings suggest that the traditional bread elaboration has a potential prebiotic effect improving gut health (ClinicalTrials.gov ID number of study: NCT05656391).
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Affiliation(s)
- Aleix Lluansí
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
| | - Marc Llirós
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
| | - Robert Carreras-Torres
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
| | - Anna Bahí
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
| | - Montserrat Capdevila
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
| | - Anna Feliu
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
| | - Laura Vilà-Quintana
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
| | | | | | - Laia Peries
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
- Department of Gastroenterology, Hospital Universitari de Girona Dr. Josep Trueta, Girona, Spain
| | - Leyanira Torrealba
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
- Department of Gastroenterology, Hospital Universitari de Girona Dr. Josep Trueta, Girona, Spain
| | - Josep Oriol Miquel-Cusachs
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
- Department of Gastroenterology, Hospital Universitari de Girona Dr. Josep Trueta, Girona, Spain
| | - Míriam Sàbat
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
- Department of Gastroenterology, Hospital de Santa Caterina, Girona, Spain
| | - David Busquets
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
- Department of Gastroenterology, Hospital Universitari de Girona Dr. Josep Trueta, Girona, Spain
| | - Carmen López
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
- Department of Gastroenterology, Hospital Universitari de Girona Dr. Josep Trueta, Girona, Spain
| | - Sílvia Delgado-Aros
- Gastroenterology Scientific advisor to Elias-Boulanger S.L., Vilassar de Mar, Spain
| | - Librado Jesús Garcia-Gil
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
- Department of Biology, Universitat de Girona, Girona, Spain
| | - Isidre Elias
- Department of Gastroenterology, Hospital Universitari de Girona Dr. Josep Trueta, Girona, Spain
| | - Xavier Aldeguer
- Digestive Diseases and Microbiota Group, Institut d’Investigació Biomèdica de Girona Dr. Josep Trueta (IDIBGI), Girona, Spain
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Chang YH, Choi YJ, Shin CM, Moon JS, Kim TY, Yoon H, Park YS, Kim N, Lee DH. Efficacy of Quadruple-coated Probiotics in Patients With Irritable Bowel Syndrome: A Randomized, Double-blind, Placebo-controlled, Parallel-group Study. J Neurogastroenterol Motil 2024; 30:73-86. [PMID: 38173160 PMCID: PMC10774795 DOI: 10.5056/jnm23036] [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] [Received: 03/08/2023] [Revised: 08/17/2023] [Accepted: 09/12/2023] [Indexed: 01/05/2024] Open
Abstract
Background/Aims To evaluate the efficacy of quadruple-coated probiotics (gQlab) in patients with irritable bowel syndrome (IBS), focusing on sex differences and IBS subtypes. Methods One hundred and nine Rome III-diagnosed IBS patients were randomized into either a gQlab or placebo group and received either gQlab or a placebo for 4 weeks. Participants replied to questionnaires assessing compliance, symptoms, and safety. Fecal samples were collected at 0 and 4 weeks to measure the probiotic levels using real-time quantitative polymerase chain reaction (qPCR) and to perform metagenomic analysis via 16S ribosomal DNA sequencing. The primary endpoint was the change in the overall IBS symptoms after 4 weeks of treatment. Results Ninety-two subjects (47 and 45 in the gQlab and placebo groups, respectively) completed the study protocol. At week 4, there was a higher relief of the overall IBS symptoms in the gQlab group (P = 0.005). The overall IBS symptom improvement was statistically significant (P = 0.017) in female patients of the gQlab group compared with the placebo group. Among the IBS subtypes, constipation-predominant IBS patients showed significant relief of the overall IBS symptoms (P = 0.002). At week 4, the fecal microbiome profiles between the 2 groups did not differ, but the qPCR levels of Lactobacillus plantarum, Lactobacillus acidophilus, Lactobacillus helveticus, Bifidobacterium longum, and Bifidobacterium breve were increased in the gQlab group (P < 0.05 by repeated measures ANOVA). Conclusions gQlab administration can improve the overall IBS symptoms, especially in female and constipation-predominant IBS patients. Further research is necessary to clarify the pathophysiology behind sex-related treatment responses in IBS patients.
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Affiliation(s)
- Young Hoon Chang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
- Department of Internal Medicine, National Cancer Center, Goyang-si, Gyeonggi-do, Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Jin Seok Moon
- Research Laboratories, ILDONG Pharmaceutical Co, Ltd, Hwaseong, Gyeonggi-do, Korea
| | - Tae-Yoon Kim
- Research Laboratories, ILDONG Pharmaceutical Co, Ltd, Hwaseong, Gyeonggi-do, Korea
| | - Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Young Soo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea
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Bertin L, Zanconato M, Crepaldi M, Marasco G, Cremon C, Barbara G, Barberio B, Zingone F, Savarino EV. The Role of the FODMAP Diet in IBS. Nutrients 2024; 16:370. [PMID: 38337655 PMCID: PMC10857121 DOI: 10.3390/nu16030370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
The low FODMAP (fermentable oligosaccharide, disaccharide, monosaccharide, and polyol) diet is a beneficial therapeutic approach for patients with irritable bowel syndrome (IBS). However, how the low FODMAP diet works is still not completely understood. These mechanisms encompass not only traditionally known factors such as luminal distension induced by gas and water but also recent evidence on the role of FOMAPs in the modulation of visceral hypersensitivity, increases in intestinal permeability, the induction of microbiota changes, and the production of short-chain fatty acids (SCFAs), as well as metabolomics and alterations in motility. Although most of the supporting evidence is of low quality, recent trials have confirmed its effectiveness, even though the majority of the evidence pertains only to the restriction phase and its effectiveness in relieving abdominal bloating and pain. This review examines potential pathophysiological mechanisms and provides an overview of the existing evidence on the effectiveness of the low FODMAP diet across various IBS subtypes. Key considerations for its use include the challenges and disadvantages associated with its practical implementation, including the need for professional guidance, variations in individual responses, concerns related to microbiota, nutritional deficiencies, the development of constipation, the necessity of excluding an eating disorder before commencing the diet, and the scarcity of long-term data. Despite its recognized efficacy in symptom management, acknowledging these limitations becomes imperative for a nuanced comprehension of the role of a low FODMAP diet in managing IBS. By investigating its potential mechanisms and evidence across IBS subtypes and addressing emerging modulations alongside limitations, this review aims to serve as a valuable resource for healthcare practitioners, researchers, and patients navigating the intricate landscape of IBS.
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Affiliation(s)
- Luisa Bertin
- Department of Surgery, Oncology, Gastroenterology, University of Padua, 35121 Padua, Italy; (L.B.); (M.Z.); (M.C.); (B.B.); (F.Z.)
- Gastroenterology Unit, Azienda Ospedale-Università Padova, 35128 Padua, Italy
| | - Miriana Zanconato
- Department of Surgery, Oncology, Gastroenterology, University of Padua, 35121 Padua, Italy; (L.B.); (M.Z.); (M.C.); (B.B.); (F.Z.)
- Gastroenterology Unit, Azienda Ospedale-Università Padova, 35128 Padua, Italy
| | - Martina Crepaldi
- Department of Surgery, Oncology, Gastroenterology, University of Padua, 35121 Padua, Italy; (L.B.); (M.Z.); (M.C.); (B.B.); (F.Z.)
- Gastroenterology Unit, Azienda Ospedale-Università Padova, 35128 Padua, Italy
| | - Giovanni Marasco
- IRCCS Azienda Ospedaliero, Universitaria di Bologna, 40138 Bologna, Italy; (G.M.); (C.C.); (G.B.)
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy
| | - Cesare Cremon
- IRCCS Azienda Ospedaliero, Universitaria di Bologna, 40138 Bologna, Italy; (G.M.); (C.C.); (G.B.)
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy
| | - Giovanni Barbara
- IRCCS Azienda Ospedaliero, Universitaria di Bologna, 40138 Bologna, Italy; (G.M.); (C.C.); (G.B.)
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy
| | - Brigida Barberio
- Department of Surgery, Oncology, Gastroenterology, University of Padua, 35121 Padua, Italy; (L.B.); (M.Z.); (M.C.); (B.B.); (F.Z.)
- Gastroenterology Unit, Azienda Ospedale-Università Padova, 35128 Padua, Italy
| | - Fabiana Zingone
- Department of Surgery, Oncology, Gastroenterology, University of Padua, 35121 Padua, Italy; (L.B.); (M.Z.); (M.C.); (B.B.); (F.Z.)
- Gastroenterology Unit, Azienda Ospedale-Università Padova, 35128 Padua, Italy
| | - Edoardo Vincenzo Savarino
- Department of Surgery, Oncology, Gastroenterology, University of Padua, 35121 Padua, Italy; (L.B.); (M.Z.); (M.C.); (B.B.); (F.Z.)
- Gastroenterology Unit, Azienda Ospedale-Università Padova, 35128 Padua, Italy
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Yang D, Lyu C, He K, Pang K, Guo Z, Wu D. Bile Acid Diarrhea: From Molecular Mechanisms to Clinical Diagnosis and Treatment in the Era of Precision Medicine. Int J Mol Sci 2024; 25:1544. [PMID: 38338820 PMCID: PMC10855108 DOI: 10.3390/ijms25031544] [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: 12/19/2023] [Revised: 01/18/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
Bile acid diarrhea (BAD) is a multifaceted intestinal disorder involving intricate molecular mechanisms, including farnesoid X receptor (FXR), fibroblast growth factor receptor 4 (FGFR4), and Takeda G protein-coupled receptor 5 (TGR5). Current diagnostic methods encompass bile acid sequestrants (BAS), 48-h fecal bile acid tests, serum 7α-hydroxy-4-cholesten-3-one (C4), fibroblast growth factor 19 (FGF19) testing, and 75Selenium HomotauroCholic acid test (75SeHCAT). Treatment primarily involves BAS and FXR agonists. However, due to the limited sensitivity and specificity of current diagnostic methods, as well as suboptimal treatment efficacy and the presence of side effects, there is an urgent need to establish new diagnostic and treatment methods. While prior literature has summarized various diagnostic and treatment methods and the pathogenesis of BAD, no previous work has linked the two. This review offers a molecular perspective on the clinical diagnosis and treatment of BAD, with a focus on FXR, FGFR4, and TGR5, emphasizing the potential for identifying additional molecular mechanisms as treatment targets and bridging the gap between diagnostic and treatment methods and molecular mechanisms for a novel approach to the clinical management of BAD.
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Affiliation(s)
- Daiyu Yang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (D.Y.); (K.P.); (Z.G.)
| | - Chengzhen Lyu
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (C.L.); (K.H.)
| | - Kun He
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (C.L.); (K.H.)
| | - Ke Pang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (D.Y.); (K.P.); (Z.G.)
| | - Ziqi Guo
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (D.Y.); (K.P.); (Z.G.)
| | - Dong Wu
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (C.L.); (K.H.)
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Cui L, Zou S, Liu J, Lv H, Li H, Zhang Z. Potential effects of sodium hyaluronate on constipation-predominant irritable bowel syndrome. Int Immunopharmacol 2024; 127:111404. [PMID: 38128311 DOI: 10.1016/j.intimp.2023.111404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/25/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Treatment strategies for constipation-predominant irritable bowel syndrome (IBS-C) continue to improve. However, effective drugs are still lacking. Herein, we explored whether sodium hyaluronate (SH) could be used to treat IBS-C. The effects of SH with different molecular weights were compared in a rat model of IBS-C. Low-molecular-weight SH (LMW-SH, 5 ∼ 10 kDa), medium-molecular-weight SH (MMW-SH, 200 ∼ 400 kDa), and high-molecular-weight SH (HMW-SH, 1300 ∼ 1500 kDa) were screened for efficacy in IBS-C using the following indicators: body weight, number of fecal pellets, fecal moisture, visceral hypersensitivity, and gastrointestinal transit rate. H-HMW-SH was the most effective in improving IBS-C symptoms. The ELISA kits indicated that H-HMW-SH reduced the levels of pro-inflammatory cytokines IL-1β, IL-18, and TNF-α in IBS-C rats. In addition, both western blot and immunofluorescence analyses showed that H-HMW-SH increased the protein expressions of claudin-1, occludin and zonula occludens-1. Furthermore, H-HMW-SH restored the balance of intestinal flora in different intestinal contents (duodenum, jejunum, ileum, and colon) and feces of rats with IBS-C. Overall, our study illustrates the therapeutic potential of H-HMW-SH in the treatment of IBS-C.
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Affiliation(s)
- Li Cui
- Jiangsu Province Academy of Traditional Chinese Medicine, 210028 Nanjing, China
| | - Shuting Zou
- Jiangsu Province Academy of Traditional Chinese Medicine, 210028 Nanjing, China
| | - Jing Liu
- Jiangsu Province Academy of Traditional Chinese Medicine, 210028 Nanjing, China
| | - Huixia Lv
- School of Pharmacy, China Pharmaceutical University, 211198 Nanjing, China.
| | - Hui Li
- Jiangsu Province Academy of Traditional Chinese Medicine, 210028 Nanjing, China.
| | - Zhenhai Zhang
- Jiangsu Province Academy of Traditional Chinese Medicine, 210028 Nanjing, China.
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Xu R, Feng N, Li Q, Wang H, Li L, Feng X, Su Y, Zhu W. Pectin supplementation accelerates post-antibiotic gut microbiome reconstitution orchestrated with reduced gut redox potential. THE ISME JOURNAL 2024; 18:wrae101. [PMID: 38857378 PMCID: PMC11203915 DOI: 10.1093/ismejo/wrae101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 05/31/2024] [Accepted: 06/09/2024] [Indexed: 06/12/2024]
Abstract
Antibiotic-induced gut dysbiosis (AID) presents a big challenge to host health, and the recovery from this dysbiosis is often slow and incomplete. AID is typically characterized by elevation in redox potential, Enterobacteriaceae load, and aerobic metabolism. In our previous study, a pectin-enriched diet was demonstrated to decrease fecal redox potential and modulate the gut microbiome. Therefore, we propose that pectin supplementation may modulate gut redox potential and favor post-antibiotic gut microbiome reconstitution from dysbiosis. In the present study, rats with AIDwere used to investigate the effects of pectin supplementation on post-antibiotic gut microbiome reconstitution from dysbiosis. The results showed that pectin supplementation accelerated post-antibiotic reconstitution of gut microbiome composition and function and led to enhancement of anabolic reductive metabolism and weakening of catabolic oxidative pathways. These results were corroborated by the measurement of redox potential, findings suggesting that pectin favors post-antibiotic recovery from dysbiosis. Pectin-modulated fecal microbiota transplantation accelerated the decrease in antibiotics-elevated redox potential and Enterobacteriaceae load similarly to pectin supplementation. Moreover, both pectin supplementation and Pectin-modulated fecal microbiota transplantation enriched anaerobic members, primarily from Lachnospiraceae orchestration with enhancement of microbial reductive metabolism in post-antibiotic rats. These findings suggested that pectin supplementation accelerated post-antibiotic gut microbiome reconstitution orchestrated with reduced gut redox potential and that the effect of pectin on redox potential was mediated by remodeling of the intestinal microbiota.
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Affiliation(s)
- Rongying Xu
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing 210095, China
| | - Ni Feng
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing 210095, China
| | - Qiuke Li
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing 210095, China
| | - Hongyu Wang
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing 210095, China
| | - Lian Li
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaobo Feng
- Research Institute of General Surgery, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210095, China
| | - Yong Su
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing 210095, China
| | - Weiyun Zhu
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing 210095, China
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Kraimi N, Ross T, Pujo J, De Palma G. The gut microbiome in disorders of gut-brain interaction. Gut Microbes 2024; 16:2360233. [PMID: 38949979 PMCID: PMC11218806 DOI: 10.1080/19490976.2024.2360233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 05/21/2024] [Indexed: 07/03/2024] Open
Abstract
Functional gastrointestinal disorders (FGIDs), chronic disorders characterized by either abdominal pain, altered intestinal motility, or their combination, have a worldwide prevalence of more than 40% and impose a high socioeconomic burden with a significant decline in quality of life. Recently, FGIDs have been reclassified as disorders of gut-brain interaction (DGBI), reflecting the key role of the gut-brain bidirectional communication in these disorders and their impact on psychological comorbidities. Although, during the past decades, the field of DGBIs has advanced significantly, the molecular mechanisms underlying DGBIs pathogenesis and pathophysiology, and the role of the gut microbiome in these processes are not fully understood. This review aims to discuss the latest body of literature on the complex microbiota-gut-brain interactions and their implications in the pathogenesis of DGBIs. A better understanding of the existing communication pathways between the gut microbiome and the brain holds promise in developing effective therapeutic interventions for DGBIs.
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Affiliation(s)
- Narjis Kraimi
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Canada
| | - Taylor Ross
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Canada
| | - Julien Pujo
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Canada
| | - Giada De Palma
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Canada
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Newman KL, Allegretti JR. Emerging Noninfectious Indications for Live Biotherapeutic Products in Gastroenterology. Am J Gastroenterol 2024; 119:S30-S35. [PMID: 38153224 DOI: 10.14309/ajg.0000000000002584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/22/2023] [Indexed: 12/29/2023]
Affiliation(s)
- Kira L Newman
- Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Jessica R Allegretti
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
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Alsaady IM. Cryptosporidium and irritable bowel syndrome. Trop Parasitol 2024; 14:8-15. [PMID: 38444793 PMCID: PMC10911187 DOI: 10.4103/tp.tp_10_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 10/16/2023] [Accepted: 10/22/2023] [Indexed: 03/07/2024] Open
Abstract
Cryptosporidium is an apicomplexan parasite that causes gastrointestinal disease in a wide variety of hosts and is associated with waterborne outbreaks. Nonetheless, the parasite is underdiagnosed. Cryptosporidium has been proposed as an etiological cause of irritable bowel syndrome (IBS) in several studies. However, the exact mechanism of pathogenesis is unknown, and no direct link has been discovered. This review will discuss several parasite-induced modifications, such as immunological, microbiome, and metabolite modifications, as well as their interactions. To summarize, Cryptosporidium causes low inflammation, dysbiosis, and unbalanced metabolism, which leads to a lack of homeostasis in the intestine in a comparable pattern to postinfectious IBS.
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Affiliation(s)
- Isra Mohammad Alsaady
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
- King Fahad Medical Research Centre, Special Infectious Agents Unit, Jeddah, Saudi Arabia
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Travers P, Lacy BE, Cangemi DJ. Irritable bowel syndrome - less irritable, or better treatments? Curr Opin Gastroenterol 2024; 40:27-33. [PMID: 38078610 DOI: 10.1097/mog.0000000000000987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
PURPOSE OF REVIEW Irritable bowel syndrome (IBS) is a chronic, often bothersome disorder of gut-brain interaction (DGBI) characterized by abdominal pain associated with a change in stool frequency and/or caliber. Recent advancements have improved our understanding of the underlying pathophysiology, thus opening new avenues for therapeutic intervention. The purpose of this review is to summarize the current literature regarding treatment modalities for IBS. RECENT FINDINGS Altering the gut microbiome via probiotic and antibiotic administration, avoiding dietary triggers, and modulating the gut-brain axis have all proven efficacious for the management of IBS symptoms. Several gut-specific pharmacotherapies are approved for the treatment of IBS, many of which primarily address either diarrhea or constipation, although many patients remain symptomatic despite appropriate use. Brain-gut behavioral therapies (BGBTs) are increasingly used to treat symptoms of IBS, particularly in those who do not respond to traditional therapies. Virtual reality represents an exciting new approach to treating DGBIs, like IBS, though data are limited. SUMMARY As our understanding of IBS continues to evolve, so should our therapeutic approach. Individualizing the therapeutic approach is of utmost importance.
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Affiliation(s)
| | - Brian E Lacy
- Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, USA
| | - David J Cangemi
- Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, USA
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Orgler E, Baumgartner M, Duller S, Kumptisch C, Hausmann B, Moser D, Khare V, Lang M, Köcher T, Frick A, Muttenthaler M, Makristathis A, Moissl-Eichinger C, Gasche C. Archaea influence composition of endoscopically visible ileocolonic biofilms. Gut Microbes 2024; 16:2359500. [PMID: 38825783 PMCID: PMC11152093 DOI: 10.1080/19490976.2024.2359500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 05/21/2024] [Indexed: 06/04/2024] Open
Abstract
The gut microbiota has been implicated as a driver of irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD). Recently we described, mucosal biofilms, signifying alterations in microbiota composition and bile acid (BA) metabolism in IBS and ulcerative colitis (UC). Luminal oxygen concentration is a key factor in the gastrointestinal (GI) ecosystem and might be increased in IBS and UC. Here we analyzed the role of archaea as a marker for hypoxia in mucosal biofilms and GI homeostasis. The effects of archaea on microbiome composition and metabolites were analyzed via amplicon sequencing and untargeted metabolomics in 154 stool samples of IBS-, UC-patients and controls. Mucosal biofilms were collected in a subset of patients and examined for their bacterial, fungal and archaeal composition. Absence of archaea, specifically Methanobrevibacter, correlated with disrupted GI homeostasis including decreased microbial diversity, overgrowth of facultative anaerobes and conjugated secondary BA. IBS-D/-M was associated with absence of archaea. Presence of Methanobrevibacter correlated with Oscillospiraceae and epithelial short chain fatty acid metabolism and decreased levels of Ruminococcus gnavus. Absence of fecal Methanobrevibacter may indicate a less hypoxic GI environment, reduced fatty acid oxidation, overgrowth of facultative anaerobes and disrupted BA deconjugation. Archaea and Ruminococcus gnavus could distinguish distinct subtypes of mucosal biofilms. Further research on the connection between archaea, mucosal biofilms and small intestinal bacterial overgrowth should be performed.
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Affiliation(s)
- Elisabeth Orgler
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3, Medical University of Vienna, Vienna, Austria
- Diagnostic and Research Center for Molecular BioMedicine, Diagnostic and Research Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria
- Department of Medicine II, University Hospital, Munich, Germany
| | - Maximilian Baumgartner
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3, Medical University of Vienna, Vienna, Austria
| | - Stefanie Duller
- Diagnostic and Research Center for Molecular BioMedicine, Diagnostic and Research Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria
| | - Christina Kumptisch
- Diagnostic and Research Center for Molecular BioMedicine, Diagnostic and Research Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria
| | - Bela Hausmann
- Centre for Microbiology and Environmental Systems Science, Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
- Division of Microbiology, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Doris Moser
- Department of Cranio-Maxillofacial and Oral Surgery, Medical University of Vienna, Vienna, Austria
| | - Vineeta Khare
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3, Medical University of Vienna, Vienna, Austria
| | - Michaela Lang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3, Medical University of Vienna, Vienna, Austria
- Centre for Microbiology and Environmental Systems Science, Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
| | - Thomas Köcher
- Metabolomics Service and Research Facility, Vienna Biocenter Core Facilities, Vienna, Austria
| | - Adrian Frick
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3, Medical University of Vienna, Vienna, Austria
| | - Markus Muttenthaler
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Vienna, Austria
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Athanasios Makristathis
- Centre for Microbiology and Environmental Systems Science, Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
- Division of Microbiology, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Christine Moissl-Eichinger
- Diagnostic and Research Center for Molecular BioMedicine, Diagnostic and Research Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria
| | - Christoph Gasche
- Division of Gastroenterology and Hepatology, Department of Internal Medicine 3, Medical University of Vienna, Vienna, Austria
- Loha for Life, Center for Gastroenterology and Iron Deficiency, Vienna, Austria
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Tan Y, Yao B, Kang Y, Shi S, Shi Z, Su J. Emerging role of the crosstalk between gut microbiota and liver metabolome of subterranean herbivores in response to toxic plants. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115902. [PMID: 38171231 DOI: 10.1016/j.ecoenv.2023.115902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024]
Abstract
Plant secondary metabolites (PSMs) are a defense mechanism against herbivores, which in turn use detoxification metabolism to process ingested and absorbed PSMs. The feeding environment can cause changes in liver metabolism patterns and the gut microbiota. Here, we compared gut microbiota and liver metabolome to investigate the response mechanism of plateau zokors (Eospalax baileyi) to toxic plant Stellera chamaejasme (SC) in non-SC and SC grassland (-SCG and +SCG). Our results indicated that exposure to SC in the -SCG population increased liver inflammatory markers including prostaglandin (PG) in the Arachidonic acid pathway, while exposure to SC in the +SCG population exhibited a significant downregulation of PGs. Secondary bile acids were significantly downregulated in +SCG plateau zokors after SC treatment. Of note, the microbial taxa Veillonella in the -SCG group was significantly correlated with liver inflammation markers, while Clostridium innocum in the +SCG group had a significant positive correlation with secondary bile acids. The increase in bile acids and PGs can lead to liver inflammatory reactions, suggesting that +SCG plateau zokors may mitigate the toxicity of SC plants by reducing liver inflammatory markers including PGs and secondary bile acids, thereby avoiding liver damage. This provides new insight into mechanisms of toxicity by PSMs and counter-mechanisms for toxin tolerance by herbivores.
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Affiliation(s)
- Yuchen Tan
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University-Massey University Research Centre for Grassland Biodiversity, Gansu Agricultural University, Lanzhou 730070, China
| | - Baohui Yao
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University-Massey University Research Centre for Grassland Biodiversity, Gansu Agricultural University, Lanzhou 730070, China
| | - Yukun Kang
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University-Massey University Research Centre for Grassland Biodiversity, Gansu Agricultural University, Lanzhou 730070, China
| | - Shangli Shi
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University-Massey University Research Centre for Grassland Biodiversity, Gansu Agricultural University, Lanzhou 730070, China
| | - Zunji Shi
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Center for Grassland Microbiome, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Junhu Su
- College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University-Massey University Research Centre for Grassland Biodiversity, Gansu Agricultural University, Lanzhou 730070, China.
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46
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Guo S, Ma T, Kwok LY, Quan K, Li B, Wang H, Zhang H, Menghe B, Chen Y. Effects of postbiotics on chronic diarrhea in young adults: a randomized, double-blind, placebo-controlled crossover trial assessing clinical symptoms, gut microbiota, and metabolite profiles. Gut Microbes 2024; 16:2395092. [PMID: 39189588 PMCID: PMC11352714 DOI: 10.1080/19490976.2024.2395092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 08/03/2024] [Accepted: 08/16/2024] [Indexed: 08/28/2024] Open
Abstract
Chronic diarrhea has a considerable impact on quality of life. This randomized, double-blind, placebo-controlled crossover intervention trial was conducted with 69 participants (36 in Group A, 33 in Group B), aiming to investigate the potential of postbiotics in alleviating diarrhea-associated symptoms. Participants received postbiotic Probio-Eco® and placebo for 21 days each in alternating order, with a 14-day washout period between interventions. The results showed that postbiotic intake resulted in significant improvements in Bristol stool scale score, defecation frequency, urgency, and anxiety. Moreover, the postbiotic intervention increased beneficial intestinal bacteria, including Dysosmobacter welbionis and Faecalibacterium prausnitzii, while reducing potential pathogens like Megamonas funiformis. The levels of gut Microviridae notably increased. Non-targeted metabolomics analysis revealed postbiotic-driven enrichment of beneficial metabolites, including α-linolenic acid and p-methoxycinnamic acid, and reduction of diarrhea-associated metabolites, including theophylline, piperine, capsaicin, and phenylalanine. Targeted metabolomics confirmed a significant increase in fecal butyric acid after postbiotic intervention. The levels of aromatic amino acids, phenylalanine and tryptophan, and their related metabolites, 5-hydroxytryptophan and kynurenine, decreased after the postbiotic intervention, suggesting diarrhea alleviation was through modulating the tryptophan-5-hydroxytryptamine and tryptophan-kynurenine pathways. Additionally, chenodeoxycholic acid, a diarrhea-linked primary bile acid, decreased substantially. In conclusion, postbiotics have shown promise in relieving chronic diarrhea.
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Affiliation(s)
- Shuai Guo
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Teng Ma
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Lai-Yu Kwok
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Keyu Quan
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Bohai Li
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Huan Wang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Department of Clinical Nutrition, Inner Mongolia People’s Hospital, Hohhot, Inner Mongolia, China
| | - Heping Zhang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Bilige Menghe
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Yongfu Chen
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
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47
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Walsh L, Hill C, Ross RP. Impact of glyphosate (Roundup TM) on the composition and functionality of the gut microbiome. Gut Microbes 2023; 15:2263935. [PMID: 38099711 PMCID: PMC10561581 DOI: 10.1080/19490976.2023.2263935] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 09/24/2023] [Indexed: 12/18/2023] Open
Abstract
Glyphosate, the active ingredient in the broad-spectrum herbicide RoundupTM, has been a topic of discussion for decades due to contradictory reports of the effect of glyphosate on human health. Glyphosate inhibits the enzyme 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) of the shikimic pathway producing aromatic amino acids in plants, a mechanism that suggests that the herbicide would not affect humans as this pathway is not found in mammals. However, numerous studies have implicated glyphosate exposure in the manifestation of a variety of disorders in the human body. This review specifically outlines the potential effect of glyphosate exposure on the composition and functionality of the gut microbiome. Evidence has been building behind the hypothesis that the composition of each individual gut microbiota significantly impacts health. For this reason, the potential of glyphosate to inhibit the growth of beneficial microbes in the gut or alter their functionality is an important topic that warrants further consideration.
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Affiliation(s)
- Lauren Walsh
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Colin Hill
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - R. Paul Ross
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
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48
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Taboun ZS, Sadeghi J. The bidirectional relationship between opioids and the gut microbiome: Implications for opioid tolerance and clinical interventions. Int Immunopharmacol 2023; 125:111142. [PMID: 37918085 DOI: 10.1016/j.intimp.2023.111142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/06/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
Opioids are widely used in treating patients with acute and chronic pain; however, this class of drugs is also commonly abused. Opioid use disorder and associated overdoses are becoming more prevalent as the opioid crisis continues. Chronic opioid use is associated with tolerance, which decreases the efficacy of opioids over time, but also puts individuals at risk of fatal overdoses. Therefore, it is essential to identify strategies to reduce opioid tolerance in those that use these agents. The gut microbiome has been found to play a critical role in opioid tolerance, with opioids causing dysbiosis of the gut, and changes in the gut microbiome impacting opioid tolerance. These changes in turn have a detrimental effect on the gut microbiome, creating a positive feedback cycle. We review the bidirectional relationship between the gut microbiome and opioid tolerance, discuss the role of modulation of the gut microbiome as a potential therapeutic option in opioid-induced gut dysbiosis, and suggest opportunities for further research and clinical interventions.
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Affiliation(s)
- Zahra S Taboun
- Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Javad Sadeghi
- School of Engineering, University of British Columbia - Okanagan, Kelowna, British Columbia, Canada.
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49
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Basiji K, Sendani AA, Ghavami SB, Farmani M, Kazemifard N, Sadeghi A, Lotfali E, Aghdaei HA. The critical role of gut-brain axis microbiome in mental disorders. Metab Brain Dis 2023; 38:2547-2561. [PMID: 37436588 DOI: 10.1007/s11011-023-01248-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 05/30/2023] [Indexed: 07/13/2023]
Abstract
The Gut-brain axis is a bidirectional neural and humoral signaling that plays an important role in mental disorders and intestinal health and connects them as well. Over the past decades, the gut microbiota has been explored as an important part of the gastrointestinal tract that plays a crucial role in the regulation of most functions of various human organs. The evidence shows several mediators such as short-chain fatty acids, peptides, and neurotransmitters that are produced by the gut may affect the brain's function directly or indirectly. Thus, dysregulation in this microbiome community can give rise to several diseases such as Parkinson's disease, depression, irritable bowel syndrome, and Alzheimer's disease. So, the interactions between the gut and the brain are significantly considered, and also it provides a prominent subject to investigate the causes of some diseases. In this article, we reviewed and focused on the role of the largest and most repetitive bacterial community and their relevance with some diseases that they have mentioned previously.
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Affiliation(s)
- Kimia Basiji
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azadeh Aghamohammadi Sendani
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shaghayegh Baradaran Ghavami
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Maryam Farmani
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nesa Kazemifard
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Sadeghi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ensieh Lotfali
- Department of Medical Parasitology and Mycology, School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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50
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Essmat N, Karádi DÁ, Zádor F, Király K, Fürst S, Al-Khrasani M. Insights into the Current and Possible Future Use of Opioid Antagonists in Relation to Opioid-Induced Constipation and Dysbiosis. Molecules 2023; 28:7766. [PMID: 38067494 PMCID: PMC10708112 DOI: 10.3390/molecules28237766] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Opioid receptor agonists, particularly those that activate µ-opioid receptors (MORs), are essential analgesic agents for acute or chronic mild to severe pain treatment. However, their use has raised concerns including, among others, intestinal dysbiosis. In addition, growing data on constipation-evoked intestinal dysbiosis have been reported. Opioid-induced constipation (OIC) creates an obstacle to continuing treatment with opioid analgesics. When non-opioid therapies fail to overcome the OIC, opioid antagonists with peripheral, fast first-pass metabolism, and gastrointestinal localized effects remain the drug of choice for OIC, which are discussed here. At first glance, their use seems to only be restricted to constipation, however, recent data on OIC-related dysbiosis and its contribution to the appearance of several opioid side effects has garnered a great of attention from researchers. Peripheral MORs have also been considered as a future target for opioid analgesics with limited central side effects. The properties of MOR antagonists counteracting OIC, and with limited influence on central and possibly peripheral MOR-mediated antinociception, will be highlighted. A new concept is also proposed for developing gut-selective MOR antagonists to treat or restore OIC while keeping peripheral antinociception unaffected. The impact of opioid antagonists on OIC in relation to changes in the gut microbiome is included.
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Affiliation(s)
- Nariman Essmat
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Nagyvárad tér 4, H-1445 Budapest, Hungary; (N.E.); (D.Á.K.); (F.Z.); (K.K.); (S.F.)
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Dávid Árpád Karádi
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Nagyvárad tér 4, H-1445 Budapest, Hungary; (N.E.); (D.Á.K.); (F.Z.); (K.K.); (S.F.)
| | - Ferenc Zádor
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Nagyvárad tér 4, H-1445 Budapest, Hungary; (N.E.); (D.Á.K.); (F.Z.); (K.K.); (S.F.)
| | - Kornél Király
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Nagyvárad tér 4, H-1445 Budapest, Hungary; (N.E.); (D.Á.K.); (F.Z.); (K.K.); (S.F.)
| | - Susanna Fürst
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Nagyvárad tér 4, H-1445 Budapest, Hungary; (N.E.); (D.Á.K.); (F.Z.); (K.K.); (S.F.)
| | - Mahmoud Al-Khrasani
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Nagyvárad tér 4, H-1445 Budapest, Hungary; (N.E.); (D.Á.K.); (F.Z.); (K.K.); (S.F.)
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