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Deschamps C, Humbert D, Chalancon S, Achard C, Apper E, Denis S, Blanquet-Diot S. Large intestinal nutritional and physicochemical parameters from different dog sizes reshape canine microbiota structure and functions in vitro. Bioengineered 2024; 15:2325713. [PMID: 38471972 PMCID: PMC10936688 DOI: 10.1080/21655979.2024.2325713] [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: 12/07/2023] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
Different dog sizes are associated with variations in large intestinal physiology including gut microbiota, which plays a key role in animal health. This study aims to evaluate, using the CANIM-ARCOL (Canine Mucosal Artificial Colon), the relative importance of gut microbes versus physicochemical and nutritional parameters of the canine colonic environment in shaping microbiota structure and functions. CANIM-ARCOL was set up to reproduce nutrient availability, bile acid profiles, colonic pH, and transit time from small, medium, or large dogs according to in vivo data, while bioreactors were all inoculated with a fecal sample collected from medium size dogs (n = 2). Applying different dog size parameters resulted in a positive association between size and gas or SCFA production, as well as distinct microbiota profiles as revealed by 16S Metabarcoding. Comparisons with in vivo data from canine stools and previous in vitro results obtained when CANIM-ARCOL was inoculated with fecal samples from three dog sizes revealed that environmental colonic parameters were sufficient to drive microbiota functions. However, size-related fecal microbes were necessary to accurately reproduce in vitro the colonic ecosystem of small, medium, and large dogs. For the first time, this study provides mechanistic insights on which parameters from colonic ecosystem mainly drive canine microbiota in relation to dog size. The CANIM-ARCOL can be used as a relevant in vitro platform to unravel interactions between food or pharma compounds and canine colonic microbiota, under different dog size conditions. The potential of the model will be extended soon to diseased situations (e.g. chronic enteropathies or obesity).
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Affiliation(s)
- Charlotte Deschamps
- Université Clermont Auvergne, UMR 454 MEDIS UCA-INRAE, Clermont-Ferrand, Puy-de-Dôme, France
- Lallemand Animal Nutrition, Blagnac Cedex, Haute-Garonne, France
| | | | - Sandrine Chalancon
- Université Clermont Auvergne, UMR 454 MEDIS UCA-INRAE, Clermont-Ferrand, Puy-de-Dôme, France
| | - Caroline Achard
- Lallemand Animal Nutrition, Blagnac Cedex, Haute-Garonne, France
| | - Emmanuelle Apper
- Lallemand Animal Nutrition, Blagnac Cedex, Haute-Garonne, France
| | - Sylvain Denis
- Université Clermont Auvergne, UMR 454 MEDIS UCA-INRAE, Clermont-Ferrand, Puy-de-Dôme, France
| | - Stéphanie Blanquet-Diot
- Université Clermont Auvergne, UMR 454 MEDIS UCA-INRAE, Clermont-Ferrand, Puy-de-Dôme, France
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Wang J, Zhou T. Unveiling gut microbiota's role: Bidirectional regulation of drug transport for improved safety. Med Res Rev 2024. [PMID: 39180410 DOI: 10.1002/med.22077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 07/20/2024] [Accepted: 08/04/2024] [Indexed: 08/26/2024]
Abstract
Drug safety is a paramount concern in the field of drug development, with researchers increasingly focusing on the bidirectional regulation of gut microbiota in this context. The gut microbiota plays a crucial role in maintaining drug safety. It can influence drug transport processes in the body through various mechanisms, thereby modulating their efficacy and toxicity. The main mechanisms include: (1) The gut microbiota directly interacts with drugs, altering their chemical structure to reduce toxicity and enhance efficacy, thereby impacting drug transport mechanisms, drugs can also change the structure and abundance of gut bacteria; (2) bidirectional regulation of intestinal barrier permeability by gut microbiota, promoting the absorption of nontoxic drugs and inhibiting the absorption of toxic components; (3) bidirectional regulation of the expression and activity of transport proteins by gut microbiota, selectively promoting the absorption of effective components or inhibiting the absorption of toxic components. This bidirectional regulatory role enables the gut microbiota to play a key role in maintaining drug balance in the body and reducing adverse reactions. Understanding these regulatory mechanisms sheds light on novel approaches to minimize toxic side effects, enhance drug efficacy, and ultimately improve drug safety. This review systematically examines the bidirectional regulation of gut microbiota in drug transportation from the aforementioned aspects, emphasizing their significance in ensuring drug safety. Furthermore, it offers a prospective outlook from the standpoint of enhancing therapeutic efficacy and reducing drug toxicity, underscoring the importance of further exploration in this research domain. It aims to provide more effective strategies for drug development and treatment.
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Affiliation(s)
- Jinyi Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, China
- Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Tingting Zhou
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, China
- Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai, China
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Li J, Liu Y, He J, Yao W. Baicalin ameliorates heat stress-induced hepatic injury and intestinal microecology dysbiosis in late gestational mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 283:116832. [PMID: 39137469 DOI: 10.1016/j.ecoenv.2024.116832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 07/16/2024] [Accepted: 07/31/2024] [Indexed: 08/15/2024]
Abstract
Heat stress (HS) disrupts intestinal microbiota, glycolipid metabolism, and hepatic mitochondrial function in late gestational mice. Baicalin (BAI), a Chinese herbal medicine known for its heat-clearing and anti-inflammatory properties, has shown promise in modulating intestinal microecology and mitigating inflammation in various organs. This study investigates whether baicalin attenuates HS-induced intestinal microbial dysbiosis and liver damage in pregnant mice during late gestation. Twenty-four pregnant mice were randomly assigned to four groups, including thermoneutral (TN) (24 ± 1 ℃), HS (35 ± 1 ℃), HS+BAI200 (oral gavaged with 200 mg/kg BW of BAI), and HS+BAI400 (oral gavaged with 400 mg/kg BW of BAI). 400 mg/kg BAI treatment markedly decreased the rectal temperature and increased fetal weight in HS pregnant mice. Furthermore, 400 mg/kg BAI administration effectively ameliorated HS-induced hepatic damage and lipid disorders, reducing HSP70, AST, and ALT levels while increasing TG concentration. Notably, it activated a network of genes involved in lipid synthesis, including fatty acid synthase (FAS), acetyl-CoA carboxylase (ACC), and oxidation, such as peroxisome proliferator-activated receptor alpha (PPARα), carnitine palmityl transferase 1 beta (CPT1β). Moreover, BAI intervention restored the intestinal morphology and barrier function, evidenced by increased intestinal villus height, the ratio of villus height to crypt depth, and colonic goblet cells numbers. 400 mg/kg of BAI treatment up-regulated the expression of tight junction proteins, such as claudin-1 and Zonula Occludens-1 (ZO-1), in the jejunum and ileum, counteracting HS-induced downregulation. High-throughput sequencing showed that BAI treatment altered cecal microbial composition, increasing the relative abundance of beneficial Bacteroidota and decreasing Deferribacterota, Turicibacter, and Akkermansia. Spearman's correlation analysis highlighted significant correlations between differential cecal microbiota and physiological indexes. In conclusion, BAI administration alleviated adverse impacts in heat-exposed mice during late gestation, improving maternal physiological parameters, and ameliorating hepatic damage with altered cecal microbial composition. The findings suggest that BAI may regulate the gut-liver axis by modulating intestinal morphology, microecology, and hepatic function.
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Affiliation(s)
- Jingzheng Li
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yunyang Liu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Jianwen He
- Affiliated Hospital of Shaanxi University of Chinese Medicine, Shaanxi University of Chinese Medicine, Xianyang 712000, China.
| | - Wen Yao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Nanjing Agricultural University, Nanjing 210095, China.
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Knez E, Kadac-Czapska K, Grembecka M. The importance of food quality, gut motility, and microbiome in SIBO development and treatment. Nutrition 2024; 124:112464. [PMID: 38657418 DOI: 10.1016/j.nut.2024.112464] [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: 04/05/2023] [Revised: 03/18/2024] [Accepted: 04/04/2024] [Indexed: 04/26/2024]
Abstract
The prevalence of small intestinal bacterial overgrowth (SIBO) is rising worldwide, particularly in nations with high rates of urbanization. Irritable bowel syndrome, inflammatory bowel illnesses, and nonspecific dysmotility are strongly linked to SIBO. Moreover, repeated antibiotic therapy promotes microorganisms' overgrowth through the development of antibiotic resistance. The primary cause of excessive fermentation in the small intestine is a malfunctioning gastrointestinal motor complex, which results in the gut's longer retention of food residues. There are anatomical and physiological factors affecting the functioning of the myoelectric motor complex. Except for them, diet conditions the activity of gastrointestinal transit. Indisputably, the Western type of nutrition is unfavorable. Some food components have greater importance in the functioning of the gastrointestinal motor complex than others. Tryptophan, an essential amino acid and precursor of the serotonin hormone, accelerates intestinal transit, and gastric emptying, similarly to fiber and polyphenols. Additionally, the effect of food on the microbiome is important, and diet should prevent bacterial overgrowth and exhibit antimicrobial effects against pathogens. Therefore, knowledge about proper nutrition is essential to prevent the development and recurrence of SIBO. Since the scientific world was unsure whether there was a long-term or potential solution for SIBO until quite recently, research on a number of the topics included in the article should be performed. The article aimed to summarize current knowledge about proper nutrition after SIBO eradication and the prevention of recurrent bacterial overgrowth. Moreover, a connection was found between diet, gut dysmotility, and SIBO.
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Affiliation(s)
- Eliza Knez
- Department of Bromatology, Medical University of Gdańsk, Gdańsk, Poland
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Zhang X, Chen J, He F, Du W, Yu X. Assessing the causal effects of Eubacterium and Rumphococcus on constipation: a Mendelian randomized study. Front Microbiol 2024; 15:1376232. [PMID: 39144218 PMCID: PMC11324052 DOI: 10.3389/fmicb.2024.1376232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 07/17/2024] [Indexed: 08/16/2024] Open
Abstract
Background Constipation is affected by a number of risk variables, including cardiovascular disease and growth factors. However, the impacts of gut flora on constipation incidence has not been shown. This work, Single-Variable Mendelian Randomization (SVMR) was utilized to estimate the causal relationship between the Eubacterium genus or Rumphococcus, and constipation. Methods Data for constipation, Eubacterium genus and Rumphococcus were taken from the Integrated Epidemiology Unit (IEU) open GWAS database. Including 218,792 constipation samples, and there were 16,380,466 Single Nucleotide Polymorphisms (SNPs) for constipation. The ids of Eubacterium genus and Rumphococcus were sourced from MiBioGen database. The sample count for the Eubacterium genus was 17,380, with 656 SNPs. In addition, the sample size for Rumphococcus was 15,339, with 545 SNPs. The SVMR was performed to assess the risk of Eubacterium genus and Rumphococcus in constipation using weighted median, MR Egger, simple mode, inverse variance weighted (IVW), and weighted mode. Finally, we did a sensitivity analysis that included a heterogeneity, horizontal pleiotropy, and Leave-One-Out (LOO) test to examine the viability of the MR data. Results The SVMR revealed that the Eubacterium genus and Rumphococcus were causally connected to constipation, with Rumphococcus (P = 0.042, OR = 1.074) as a hazardous factor and Eubacterium genus (P = 0.004, OR = 0.909) as a safety factor. Sensitivity tests then revealed the absence of variability between the constipation and the exposure factors (Eubacterium genus and Rumphococcus). Additionally, there were no other confounding factors and the examined SNPs could only influence constipation through the aforementioned exposure factors, respectively. As a result, the MR results were fairly robust. Conclusion Our investigation verified the causal links between the Eubacterium genus or Rumphococcus, and constipation, with greater Rumphococcus expression increasing the likelihood of constipation and the opposite being true for the Eubacterium genus.
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Affiliation(s)
- Xiao Zhang
- Guizhou University of Traditional Chinese Medicine, Department of Colorectal Medicine, Guiyang, Guizhou, China
| | - Jiang Chen
- Guizhou University of Traditional Chinese Medicine, Department of Colorectal Medicine, Guiyang, Guizhou, China
| | - Feng He
- Guizhou University of Traditional Chinese Medicine, Department of Colorectal Medicine, Guiyang, Guizhou, China
| | - Wenchun Du
- Guizhou University of Traditional Chinese Medicine, Department of Colorectal Medicine, Guiyang, Guizhou, China
| | - Xianhao Yu
- Guizhou University of Commerce, Computer and Information Engineering College, Guiyang, China
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Vaia Y, Bruschi F, Tagi VM, Tosi M, Montanari C, Zuccotti G, Tonduti D, Verduci E. Microbiota gut-brain axis: implications for pediatric-onset leukodystrophies. Front Nutr 2024; 11:1417981. [PMID: 39070252 PMCID: PMC11272617 DOI: 10.3389/fnut.2024.1417981] [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: 04/15/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024] Open
Abstract
Neurodegenerative disorders are a group of diseases characterized by progressive degeneration of the nervous system, leading to a gradual loss of previously acquired motor, sensory and/or cognitive functions. Leukodystrophies are amongst the most frequent childhood-onset neurodegenerative diseases and primarily affect the white matter of the brain, often resulting in neuro-motor disability. Notably, gastrointestinal (GI) symptoms and complications, such as gastroesophageal reflux disease (GERD) and dysphagia, significantly impact patients' quality of life, highlighting the need for comprehensive management strategies. Gut dysbiosis, characterized by microbial imbalance, has been implicated in various GI disorders and neurodegenerative diseases. This narrative review explores the intricate relationship between GI symptoms, Gut Microbiota (GM), and neurodegeneration. Emerging evidence underscores the profound influence of GM on neurological functions via the microbiota gut-brain axis. Animal models have demonstrated alterations in GM composition associated with neuroinflammation and neurodegeneration. Our single-centre experience reveals a high prevalence of GI symptoms in leukodystrophy population, emphasizing the importance of gastroenterological assessment and nutritional intervention in affected children. The bidirectional relationship between GI disorders and neurodegeneration suggests a potential role of gut dysbiosis in disease progression. Prospective studies investigating the GM in leukodystrophies are essential to understand the role of gut-brain axis dysfunction in disease progression and identify novel therapeutic targets. In conclusion, elucidating the interplay between GI disorders, GM, and neurodegeneration holds promise for precision treatments aimed at improving patient outcomes and quality of life.
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Affiliation(s)
- Ylenia Vaia
- C.O.A.L.A. (Center for Diagnosis and Treatment of Leukodystrophies), Unit of Pediatric Neurology, V. Buzzi Children’s Hospital, Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - Fabio Bruschi
- C.O.A.L.A. (Center for Diagnosis and Treatment of Leukodystrophies), Unit of Pediatric Neurology, V. Buzzi Children’s Hospital, Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - Veronica Maria Tagi
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
- Department of Pediatrics, V. Buzzi Children's Hospital, Milan, Italy
| | - Martina Tosi
- Department of Pediatrics, V. Buzzi Children's Hospital, Milan, Italy
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Chiara Montanari
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
- Department of Pediatrics, V. Buzzi Children's Hospital, Milan, Italy
| | - Gianvincenzo Zuccotti
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
- Department of Pediatrics, V. Buzzi Children's Hospital, Milan, Italy
| | - Davide Tonduti
- C.O.A.L.A. (Center for Diagnosis and Treatment of Leukodystrophies), Unit of Pediatric Neurology, V. Buzzi Children’s Hospital, Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - Elvira Verduci
- Department of Health Sciences, University of Milan, Milan, Italy
- Metabolic Diseases Unit, Department of Pediatrics, V. Buzzi Children’s Hospital, University of Milan, Milan, Italy
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Collier CA, Salikhova A, Sabir S, Foncerrada S, Raghavan SA. Crisis in the gut: navigating gastrointestinal challenges in Gulf War Illness with bioengineering. Mil Med Res 2024; 11:45. [PMID: 38978144 PMCID: PMC11229309 DOI: 10.1186/s40779-024-00547-2] [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: 12/21/2023] [Accepted: 06/26/2024] [Indexed: 07/10/2024] Open
Abstract
Gulf War Illness (GWI) is characterized by a wide range of symptoms that manifests largely as gastrointestinal symptoms. Among these gastrointestinal symptoms, motility disorders are highly prevalent, presenting as chronic constipation, stomach pain, indigestion, diarrhea, and other conditions that severely impact the quality of life of GWI veterans. However, despite a high prevalence of gastrointestinal impairments among these veterans, most research attention has focused on neurological disturbances. This perspective provides a comprehensive overview of current in vivo research advancements elucidating the underlying mechanisms contributing to gastrointestinal disorders in GWI. Generally, these in vivo and in vitro models propose that neuroinflammation alters gut motility and drives the gastrointestinal symptoms reported in GWI. Additionally, this perspective highlights the potential and challenges of in vitro bioengineering models, which could be a crucial contributor to understanding and treating the pathology of gastrointestinal related-GWI.
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Affiliation(s)
- Claudia A Collier
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Aelita Salikhova
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Sufiyan Sabir
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Steven Foncerrada
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Shreya A Raghavan
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA.
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Xu H, Luo Y, Li Q, Zhu H. Acupuncture influences multiple diseases by regulating gut microbiota. Front Cell Infect Microbiol 2024; 14:1371543. [PMID: 39040602 PMCID: PMC11260648 DOI: 10.3389/fcimb.2024.1371543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 06/13/2024] [Indexed: 07/24/2024] Open
Abstract
Acupuncture, an important green and side effect-free therapy in traditional Chinese medicine, is widely use both domestically and internationally. Acupuncture can interact with the gut microbiota and influence various diseases, including metabolic diseases, gastrointestinal diseases, mental disorders, nervous system diseases, and other diseases. This review presents a thorough analysis of these interactions and their impacts and examines the alterations in the gut microbiota and the potential clinical outcomes following acupuncture intervention to establish a basis for the future utilization of acupuncture in clinical treatments.
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Affiliation(s)
- Huimin Xu
- Department of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yingzhe Luo
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Qiaoqi Li
- Department of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hong Zhu
- Department of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Ośko J, Nasierowska K, Grembecka M. Application of In Vitro Digestion Models in the Evaluation of Dietary Supplements. Foods 2024; 13:2135. [PMID: 38998641 PMCID: PMC11240933 DOI: 10.3390/foods13132135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 06/28/2024] [Accepted: 07/02/2024] [Indexed: 07/14/2024] Open
Abstract
Nowadays, dietary supplements are a permanent part of our diet. Using various simulated in vitro digestive models, the bioavailability of dietary supplement ingredients has also been investigated. In most cases, static models are used instead of dynamic ones. This article focuses on the division of applications of in vitro methods, such as assessing the quality of dietary supplements (in chemical and pharmaceutical form), the impact of diet on the assessment of the bioavailability of product ingredients, the impact of supplement ingredients on the state of intestinal microflora, and the development of new products using various encapsulation methods. The review included publications from 2000 to 2024 showing the use of in vitro methods in dietary supplements containing polysaccharides, proteins, elements, vitamins, and bioactive substances, as well as probiotic and prebiotic products. The impact of components in dietary supplements on the human digestive tract and their degree of bioaccessibility were determined through the use of in vitro methods. The application of in vitro methods has also become an effective tool for designing new forms of dietary supplements in order to increase the availability and durability of labile ingredients in these products.
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Affiliation(s)
- Justyna Ośko
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, Gen. J. Hallera Avenue 107, 80-416 Gdańsk, Poland
| | - Katarzyna Nasierowska
- Student Scientific Circle, Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, Gen. J. Hallera Avenue 107, 80-416 Gdańsk, Poland
| | - Małgorzata Grembecka
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, Gen. J. Hallera Avenue 107, 80-416 Gdańsk, Poland
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Asuku AO, Ayinla MT, Olajide TS, Oyerinde TO, Yusuf JA, Bayo-Olugbami AA, Fajemidagba GA. Coffee and Parkinson's disease. PROGRESS IN BRAIN RESEARCH 2024; 289:1-19. [PMID: 39168575 DOI: 10.1016/bs.pbr.2024.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Parkinson's disease (PD) is a prevalent neurodegenerative disease marked by dopaminergic neuronal loss and misfolded alpha-synuclein (α-syn) accumulation, which results in both motor and cognitive symptoms. Its occurrence grows with age, with a larger prevalence among males. Despite substantial study, effective medicines to reduce or stop the progression of diseases remain elusive. Interest has grown in examining dietary components, such as caffeine present in coffee, for potential medicinal effects. Epidemiological studies imply a lower incidence of PD with coffee drinking, attributable to caffeine's neuroprotective abilities. Beyond caffeine, coffee constituent like chlorogenic acid and cafestol have anti-Parkinsonian benefits. Moreover, coffee use has been related with variations in gut microbiota composition, which may reduce intestinal inflammation and prevent protein misfolding in enteric nerves, perhaps through the microbiota-gut-brain axis. This review gives a summary of the neuroprotective effects of coffee, investigating both its motor and non-motor advantages in individuals with PD as well as in experimental models of PD. We reviewed some bioactive constituents of coffee, their respective interactions with misfolded α-syn accumulation, and its emerging mechanisms associated to the gut microbiome.
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Affiliation(s)
- Abraham Olufemi Asuku
- Bioresources Development Centre, National Biotechnology Research and Development Agency, Ogbomoso, Oyo, Nigeria; Department of Physiology, Faculty of Basic Medical Sciences, College of Health Sciences, University of Ilorin, Ilorin, Kwara, Nigeria.
| | - Maryam Tayo Ayinla
- Department of Physiology, Faculty of Basic Medical Sciences, College of Health Sciences, University of Ilorin, Ilorin, Kwara, Nigeria
| | - Tobiloba Samuel Olajide
- Laboratory for Experimental and Translational Neurobiology, University of Medical Sciences, Ondo, Ondo, Nigeria
| | - Toheeb O Oyerinde
- Laboratory for Experimental and Translational Neurobiology, University of Medical Sciences, Ondo, Ondo, Nigeria
| | - Joshua Ayodele Yusuf
- Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria
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Wagai G, Togao M, Kurakawa T, Nishizaki H, Otsuka J, Ohta-Takada Y, Kurita A, Suzuki T, Kawakami K. CFP/Yit: An Inbred Mouse Strain with Slow Gastrointestinal Transit. Dig Dis Sci 2024; 69:2026-2043. [PMID: 38622463 PMCID: PMC11162387 DOI: 10.1007/s10620-024-08420-x] [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: 09/19/2023] [Accepted: 03/26/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND Gastrointestinal transit (GIT) is influenced by factors including diet, medications, genetics, and gut microbiota, with slow GIT potentially indicating a functional disorder linked to conditions, such as constipation. Although GIT studies have utilized various animal models, few effectively model spontaneous slow GIT. AIMS We aimed to characterize the GIT phenotype of CFP/Yit (CFP), an inbred mouse strain with suggested slow GIT. METHODS Female and male CFP mice were compared to Crl:CD1 (ICR) mice in GIT and assessed based on oral gavage of fluorescent-labeled 70-kDa dextran, feed intake, fecal amount, and fecal water content. Histopathological analysis of the colon and analysis of gut microbiota were conducted. RESULTS CFP mice exhibited a shorter small intestine and a 1.4-fold longer colon compared to ICR mice. The median whole-GIT time was 6.0-fold longer in CFP mice than in ICR mice. CFP mice demonstrated slower gastric and cecal transits than ICR mice, with a median colonic transit time of 4.1 h (2.9-fold longer). CFP mice exhibited lower daily feed intakes and fecal amounts. Fecal water content was lower in CFP mice, apparently attributed to the longer colon. Histopathological analysis showed no changes in CFP mice, including tumors or inflammation. Moreover, CFP mice had a higher Firmicutes/Bacteroidota ratio and a relative abundance of Erysipelotrichaceae in cecal and fecal contents. CONCLUSIONS This study indicates that CFP mice exhibit slow transit in the stomach, cecum, and colon. As a novel mouse model, CFP mice can contribute to the study of gastrointestinal physiology and disease.
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Affiliation(s)
- Gaku Wagai
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan.
| | - Masao Togao
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan
| | - Takashi Kurakawa
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan
| | - Haruka Nishizaki
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan
| | - Jun Otsuka
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan
| | - Yuki Ohta-Takada
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan
| | - Akinobu Kurita
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan
| | - Tomo Suzuki
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan
| | - Koji Kawakami
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan
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Vandecruys M, De Smet S, De Beir J, Renier M, Leunis S, Van Criekinge H, Glorieux G, Raes J, Vanden Wyngaert K, Nagler E, Calders P, Monbaliu D, Cornelissen V, Evenepoel P, Van Craenenbroeck AH. Revitalizing the Gut Microbiome in Chronic Kidney Disease: A Comprehensive Exploration of the Therapeutic Potential of Physical Activity. Toxins (Basel) 2024; 16:242. [PMID: 38922137 PMCID: PMC11209503 DOI: 10.3390/toxins16060242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 06/27/2024] Open
Abstract
Both physical inactivity and disruptions in the gut microbiome appear to be prevalent in patients with chronic kidney disease (CKD). Engaging in physical activity could present a novel nonpharmacological strategy for enhancing the gut microbiome and mitigating the adverse effects associated with microbial dysbiosis in individuals with CKD. This narrative review explores the underlying mechanisms through which physical activity may favorably modulate microbial health, either through direct impact on the gut or through interorgan crosstalk. Also, the development of microbial dysbiosis and its interplay with physical inactivity in patients with CKD are discussed. Mechanisms and interventions through which physical activity may restore gut homeostasis in individuals with CKD are explored.
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Affiliation(s)
- Marieke Vandecruys
- Nephrology and Renal Transplantation Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (M.V.); or (P.E.)
| | - Stefan De Smet
- Exercise Physiology Research Group, Department of Movement Sciences, KU Leuven, 3000 Leuven, Belgium;
| | - Jasmine De Beir
- Department of Rehabilitation Sciences, Ghent University, 9000 Ghent, Belgium; (J.D.B.); (P.C.)
| | - Marie Renier
- Group Rehabilitation for Internal Disorders, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium; (M.R.); (V.C.)
| | - Sofie Leunis
- Department of Microbiology, Immunology and Transplantation, Abdominal Transplantation, KU Leuven, 3000 Leuven, Belgium; (S.L.); (H.V.C.); (D.M.)
| | - Hanne Van Criekinge
- Department of Microbiology, Immunology and Transplantation, Abdominal Transplantation, KU Leuven, 3000 Leuven, Belgium; (S.L.); (H.V.C.); (D.M.)
| | - Griet Glorieux
- Department of Internal Medicine and Pediatrics, Nephrology Section, Ghent University Hospital, 9000 Ghent, Belgium; (G.G.); (K.V.W.); (E.N.)
| | - Jeroen Raes
- Department of Microbiology and Immunology, Rega Institute for Medical Research, 3000 Leuven, Belgium;
- VIB-KU Leuven Center for Microbiology, 3000 Leuven, Belgium
| | - Karsten Vanden Wyngaert
- Department of Internal Medicine and Pediatrics, Nephrology Section, Ghent University Hospital, 9000 Ghent, Belgium; (G.G.); (K.V.W.); (E.N.)
| | - Evi Nagler
- Department of Internal Medicine and Pediatrics, Nephrology Section, Ghent University Hospital, 9000 Ghent, Belgium; (G.G.); (K.V.W.); (E.N.)
| | - Patrick Calders
- Department of Rehabilitation Sciences, Ghent University, 9000 Ghent, Belgium; (J.D.B.); (P.C.)
| | - Diethard Monbaliu
- Department of Microbiology, Immunology and Transplantation, Abdominal Transplantation, KU Leuven, 3000 Leuven, Belgium; (S.L.); (H.V.C.); (D.M.)
- Transplantoux Foundation, 3000 Leuven, Belgium
| | - Véronique Cornelissen
- Group Rehabilitation for Internal Disorders, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium; (M.R.); (V.C.)
| | - Pieter Evenepoel
- Nephrology and Renal Transplantation Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (M.V.); or (P.E.)
- Department of Nephrology, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Amaryllis H. Van Craenenbroeck
- Nephrology and Renal Transplantation Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (M.V.); or (P.E.)
- Department of Nephrology, University Hospitals Leuven, 3000 Leuven, Belgium
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13
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Zhang Y, Song F, Yang M, Chen C, Cui J, Xing M, Dai Y, Li M, Cao Y, Lu L, Zhu H, Liu Y, Ma C, Wei Q, Qin H, Li J. Gastrointestinal Dysmotility Predisposes to Colitis through Regulation of Gut Microbial Composition and Linoleic Acid Metabolism. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306297. [PMID: 38477534 PMCID: PMC11132037 DOI: 10.1002/advs.202306297] [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: 09/01/2023] [Indexed: 03/14/2024]
Abstract
Disrupted gastrointestinal (GI) motility is highly prevalent in patients with inflammatory bowel disease (IBD), but its potential causative role remains unknown. Herein, the role and the mechanism of impaired GI motility in colitis pathogenesis are investigated. Increased colonic mucosal inflammation is found in patients with chronic constipation (CC). Mice with GI dysmotility induced by genetic mutation or chemical insult exhibit increased susceptibility to colitis, dependent on the gut microbiota. GI dysmotility markedly decreases the abundance of Lactobacillus animlalis and increases the abundance of Akkermansia muciniphila. The reduction in L. animlalis, leads to the accumulation of linoleic acid due to compromised conversion to conjugated linoleic acid. The accumulation of linoleic acid inhibits Treg cell differentiation and increases colitis susceptibility via inducing macrophage infiltration and proinflammatory cytokine expression in macrophage. Lactobacillus and A. muciniphila abnormalities are also observed in CC and IBD patients, and mice receiving fecal microbiota from CC patients displayed an increased susceptibility to colitis. These findings suggest that GI dysmotility predisposes host to colitis development by modulating the composition of microbiota and facilitating linoleic acid accumulation. Targeted modulation of microbiota and linoleic acid metabolism may be promising to protect patients with motility disorder from intestinal inflammation.
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Affiliation(s)
- Youhua Zhang
- Department of PathologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Feifei Song
- Department of PathologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Muqing Yang
- Department of General SurgeryShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Chunqiu Chen
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen SurgeryShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Jiaqu Cui
- Department of Colorectal DiseaseShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Mengyu Xing
- Department of PathologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Yuna Dai
- Department of PathologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Man Li
- Department of PathologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Yuan Cao
- Department of PathologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Ling Lu
- Department of PathologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Huiyuan Zhu
- Department of PathologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Ying Liu
- Department of General SurgeryShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Chunlian Ma
- Department of Colorectal DiseaseShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Qing Wei
- Department of PathologyShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Huanlong Qin
- Department of Gastrointestinal SurgeryShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
| | - Jiyu Li
- Department of General SurgeryShanghai Tenth People's Hospital, Tongji University School of MedicineShanghai200072China
- Geriatric Cancer CenterHuaDong Hospital Affiliated to Fudan
UniversityShanghai200040China
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14
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Jans M, Vereecke L. A guide to germ-free and gnotobiotic mouse technology to study health and disease. FEBS J 2024. [PMID: 38523409 DOI: 10.1111/febs.17124] [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: 10/30/2023] [Revised: 01/17/2024] [Accepted: 03/11/2024] [Indexed: 03/26/2024]
Abstract
The intestinal microbiota has major influence on human physiology and modulates health and disease. Complex host-microbe interactions regulate various homeostatic processes, including metabolism and immune function, while disturbances in microbiota composition (dysbiosis) are associated with a plethora of human diseases and are believed to modulate disease initiation, progression and therapy response. The vast complexity of the human microbiota and its metabolic output represents a great challenge in unraveling the molecular basis of host-microbe interactions in specific physiological contexts. To increase our understanding of these interactions, functional microbiota research using animal models in a reductionistic setting are essential. In the dynamic landscape of gut microbiota research, the use of germ-free and gnotobiotic mouse technology, in which causal disease-driving mechanisms can be dissected, represents a pivotal investigative tool for functional microbiota research in health and disease, in which causal disease-driving mechanisms can be dissected. A better understanding of the health-modulating functions of the microbiota opens perspectives for improved therapies in many diseases. In this review, we discuss practical considerations for the design and execution of germ-free and gnotobiotic experiments, including considerations around germ-free rederivation and housing conditions, route and timing of microbial administration, and dosing protocols. This comprehensive overview aims to provide researchers with valuable insights for improved experimental design in the field of functional microbiota research.
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Affiliation(s)
- Maude Jans
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Lars Vereecke
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Belgium
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15
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Baker CC, Sessenwein JL, Wood HM, Yu Y, Tsang Q, Alward TA, Jimenez Vargas NN, Omar AA, McDonnel A, Segal JP, Sjaarda CP, Bunnett NW, Schmidt BL, Caminero A, Boev N, Bannerman CA, Ghasemlou N, Sheth PM, Vanner SJ, Reed DE, Lomax AE. Protease-Induced Excitation of Dorsal Root Ganglion Neurons in Response to Acute Perturbation of the Gut Microbiota Is Associated With Visceral and Somatic Hypersensitivity. Cell Mol Gastroenterol Hepatol 2024; 18:101334. [PMID: 38494056 PMCID: PMC11350452 DOI: 10.1016/j.jcmgh.2024.03.006] [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: 03/30/2023] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND & AIMS Abdominal pain is a major symptom of diseases that are associated with microbial dysbiosis, including irritable bowel syndrome and inflammatory bowel disease. Germ-free mice are more prone to abdominal pain than conventionally housed mice, and reconstitution of the microbiota in germ-free mice reduces abdominal pain sensitivity. However, the mechanisms underlying microbial modulation of pain remain elusive. We hypothesized that disruption of the intestinal microbiota modulates the excitability of peripheral nociceptive neurons. METHODS In vivo and in vitro assays of visceral sensation were performed on mice treated with the nonabsorbable antibiotic vancomycin (50 μg/mL in drinking water) for 7 days and water-treated control mice. Bacterial dysbiosis was verified by 16s rRNA analysis of stool microbial composition. RESULTS Treatment of mice with vancomycin led to an increased sensitivity to colonic distension in vivo and in vitro and hyperexcitability of dorsal root ganglion (DRG) neurons in vitro, compared with controls. Interestingly, hyperexcitability of DRG neurons was not restricted to those that innervated the gut, suggesting a widespread effect of gut dysbiosis on peripheral pain circuits. Consistent with this, mice treated with vancomycin were more sensitive than control mice to thermal stimuli applied to hind paws. Incubation of DRG neurons from naive mice in serum from vancomycin-treated mice increased DRG neuron excitability, suggesting that microbial dysbiosis alters circulating mediators that influence nociception. The cysteine protease inhibitor E64 (30 nmol/L) and the protease-activated receptor 2 (PAR-2) antagonist GB-83 (10 μmol/L) each blocked the increase in DRG neuron excitability in response to serum from vancomycin-treated mice, as did the knockout of PAR-2 in NaV1.8-expressing neurons. Stool supernatant, but not colonic supernatant, from mice treated with vancomycin increased DRG neuron excitability via cysteine protease activation of PAR-2. CONCLUSIONS Together, these data suggest that gut microbial dysbiosis alters pain sensitivity and identify cysteine proteases as a potential mediator of this effect.
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Affiliation(s)
- Corey C Baker
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | - Jessica L Sessenwein
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | - Hannah M Wood
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | - Yang Yu
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | - Quentin Tsang
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | - Taylor A Alward
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | | | - Amal Abu Omar
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | - Abby McDonnel
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | - Julia P Segal
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Calvin P Sjaarda
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada
| | - Nigel W Bunnett
- Department of Molecular Pathobiology, Neuroscience Institute, New York University, New York, New York
| | - Brian L Schmidt
- Department of Molecular Pathobiology, Neuroscience Institute, New York University, New York, New York
| | - Alberto Caminero
- Department of Medicine, Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Nadejda Boev
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada
| | - Courtney A Bannerman
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Nader Ghasemlou
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada; Department of Anesthesiology and Perioperative Medicine, Queen's Unversity, Kingston, Ontario, Canada
| | - Prameet M Sheth
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada; Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada; Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada
| | - Stephen J Vanner
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | - David E Reed
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
| | - Alan E Lomax
- Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada; Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada.
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16
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Hung LY, Margolis KG. Autism spectrum disorders and the gastrointestinal tract: insights into mechanisms and clinical relevance. Nat Rev Gastroenterol Hepatol 2024; 21:142-163. [PMID: 38114585 DOI: 10.1038/s41575-023-00857-1] [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] [Accepted: 10/11/2023] [Indexed: 12/21/2023]
Abstract
Autism spectrum disorders (ASDs) are recognized as central neurodevelopmental disorders diagnosed by impairments in social interactions, communication and repetitive behaviours. The recognition of ASD as a central nervous system (CNS)-mediated neurobehavioural disorder has led most of the research in ASD to be focused on the CNS. However, gastrointestinal function is also likely to be affected owing to the neural mechanistic nature of ASD and the nervous system in the gastrointestinal tract (enteric nervous system). Thus, it is unsurprising that gastrointestinal disorders, particularly constipation, diarrhoea and abdominal pain, are highly comorbid in individuals with ASD. Gastrointestinal problems have also been repeatedly associated with increased severity of the core symptoms diagnostic of ASD and other centrally mediated comorbid conditions, including psychiatric issues, irritability, rigid-compulsive behaviours and aggression. Despite the high prevalence of gastrointestinal dysfunction in ASD and its associated behavioural comorbidities, the specific links between these two conditions have not been clearly delineated, and current data linking ASD to gastrointestinal dysfunction have not been extensively reviewed. This Review outlines the established and emerging clinical and preclinical evidence that emphasizes the gut as a novel mechanistic and potential therapeutic target for individuals with ASD.
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Affiliation(s)
- Lin Y Hung
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, USA
| | - Kara Gross Margolis
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, USA.
- Department of Cell Biology, NYU Grossman School of Medicine and Langone Medical Center, New York, NY, USA.
- Department of Pediatrics, NYU Grossman School of Medicine and Langone Medical Center, New York, NY, USA.
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17
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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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18
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Wang X, Guo R, Yu Z, Zikela L, Li J, Li S, Han Q. Torreya grandis Kernel Oil Alleviates Loperamide-Induced Slow Transit Constipation via Up-Regulating the Colonic Expressions of Occludin/Claudin-1/ZO-1 and 5-HT3R/5-HT4R in BALB/c Mice. Mol Nutr Food Res 2024; 68:e2300615. [PMID: 38152983 DOI: 10.1002/mnfr.202300615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/11/2023] [Indexed: 12/29/2023]
Abstract
SCOPE Torreya grandis kernel has traditionally been used to remove intestinal parasites and increases intestinal motility. However, the effect of Torreya grandis kernel oil (TKO) on constipation has not yet been investigated. Therefore, mouse model is used to investigate the effect of TKO on slow transit constipation (STC) and its possible mechanism. METHODS AND RESULTS The effects of TKO on intestinal motility of STC mice are evaluated by fecal weight, fecal water content, colon length, defecation test, and intestinal propulsion test. The mechanism of TKO alleviating STC is explored by detecting biochemical analysis, histological analysis, western blot, qRT-PCR, immunohistochemistry, and gut microbiota analysis. The results reveal that TKO effectively promotes defecation and intestinal motility, increases the level of endothelin-1, and restores the histopathological morphology of the colon under LOP pretreatment. The expression levels of occludin, claudin-1, and zonula occludens-1 (ZO-1) mRNA and protein are up-regulated in mice receiving TKO treatment. The colonic 5-hydroxytryptamine 3R/4R (5-HT3R/5-HT4R) expressions are also increased by TKO supplementation. Additionally, TKO rescues LOP-caused disorders of the gut microbiota. CONCLUSION Consumption of TKO is beneficial to STC recovery, and it can alleviate LOP-induced STC by up-regulating the colonic expressions of Occludin/Claudin-1/ZO-1 and 5-HT3R/5-HT4R.
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Affiliation(s)
- Xuezhu Wang
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Rui Guo
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Zhuoli Yu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Lalai Zikela
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Jiaomei Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Songtao Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Qiang Han
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
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19
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Gong L, Liu F, Liu J, Wang J. Dietary fiber (oligosaccharide and non-starch polysaccharide) in preventing and treating functional gastrointestinal disorders - Challenges and controversies: A review. Int J Biol Macromol 2024; 258:128835. [PMID: 38128805 DOI: 10.1016/j.ijbiomac.2023.128835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Functional gastrointestinal disorders (FGIDs) are a group of chronic or recurrent gastrointestinal functional diseases, including functional dyspepsia, irritable bowel syndrome, and functional constipation. A lack of safe and reliable treatments for abdominal pain-related FGIDs has prompted interest in new therapies. Evidence has shown that supplementation with dietary fiber may help treat FGIDs. Dietary fibers (DFs) have been demonstrated to have regulatory effects on the gut microbiota, microbiota metabolites, and gastrointestinal movement and have important implications for preventing and treating FGIDs. However, the adverse effects of some DFs, such as fermentable oligosaccharides, on FGIDs are unclear. This review provides an overview of the DFs physiological properties and functional characteristics that influence their use in management of FGIDs, with emphasis on structural modification technology to improve their therapeutic activities. The review highlights that the use of appropriate or novel fibers is a potential therapeutic approach for FGIDs.
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Affiliation(s)
- Lingxiao Gong
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Key Laboratory of Special Food Supervision Technology for State Market Regulation, School of Food and Health, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Feiyue Liu
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Key Laboratory of Special Food Supervision Technology for State Market Regulation, School of Food and Health, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Jie Liu
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Key Laboratory of Special Food Supervision Technology for State Market Regulation, School of Food and Health, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Jing Wang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Key Laboratory of Special Food Supervision Technology for State Market Regulation, School of Food and Health, Beijing Technology & Business University (BTBU), Beijing 100048, China.
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20
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Hammer TJ. Why do hosts malfunction without microbes? Missing benefits versus evolutionary addiction. Trends Microbiol 2024; 32:132-141. [PMID: 37652785 DOI: 10.1016/j.tim.2023.07.012] [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: 06/09/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 09/02/2023]
Abstract
Microbes are widely recognized to be vital to host health. This new consensus rests, in part, on experiments showing how hosts malfunction when microbes are removed. More and more microbial dependencies are being discovered, even in fundamental processes such as development, immunity, physiology, and behavior. But why do they exist? The default explanation is that microbes are beneficial; when hosts lose microbes, they also lose benefits. Here I call attention to evolutionary addiction, whereby a host trait evolves a need for microbes without having been improved by them. Evolutionary addiction should be considered when interpreting microbe-removal experiments, as it is a distinct and potentially common process. Further, it may have unique implications for the evolution and stability of host-microbe interactions.
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Affiliation(s)
- Tobin J Hammer
- Department of Ecology and Evolutionary Biology, University of California, Irvine, Irvine, CA, USA.
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21
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Duffy EP, Bachtell RK, Ehringer MA. Opioid trail: Tracking contributions to opioid use disorder from host genetics to the gut microbiome. Neurosci Biobehav Rev 2024; 156:105487. [PMID: 38040073 PMCID: PMC10836641 DOI: 10.1016/j.neubiorev.2023.105487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/03/2023]
Abstract
Opioid use disorder (OUD) is a worldwide public health crisis with few effective treatment options. Traditional genetics and neuroscience approaches have provided knowledge about biological mechanisms that contribute to OUD-related phenotypes, but the complexity and magnitude of effects in the brain and body remain poorly understood. The gut-brain axis has emerged as a promising target for future therapeutics for several psychiatric conditions, so characterizing the relationship between host genetics and the gut microbiome in the context of OUD will be essential for development of novel treatments. In this review, we describe evidence that interactions between host genetics, the gut microbiome, and immune signaling likely play a key role in mediating opioid-related phenotypes. Studies in humans and model organisms consistently demonstrated that genetic background is a major determinant of gut microbiome composition. Furthermore, the gut microbiome is susceptible to environmental influences such as opioid exposure. Additional work focused on gene by microbiome interactions will be necessary to gain improved understanding of their effects on OUD-related behaviors.
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Affiliation(s)
- Eamonn P Duffy
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA; Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, USA.
| | - Ryan K Bachtell
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, USA; Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA
| | - Marissa A Ehringer
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA; Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, USA
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22
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Cui C, Shi Y, Hong H, Zhou Y, Qiao C, Zhao L, Jia X, Zhao W, Shen Y. 5-HT4 Receptor is Protective for MPTP-induced Parkinson's Disease Mice Via Altering Gastrointestinal Motility or Gut Microbiota. J Neuroimmune Pharmacol 2023; 18:610-627. [PMID: 37782386 DOI: 10.1007/s11481-023-10085-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 09/24/2023] [Indexed: 10/03/2023]
Abstract
Serotonergic dysfunction is related to both motor and nonmotor symptoms in Parkinson's disease (PD). As a 5-HT receptor, 5-HT4 receptor (5-HT4R) is well-studied and already-used in clinical therapy of constipation, which is a typical non-motor symptom in PD. In this study, we investigated the role of 5-HT4R as a regulator of gut function in MPTP-induced acute PD mice model. Daily intraperitoneal injection of GR 125487 (5-HT4R antagonist) was administered 3 days before MPTP treatment until sacrifice. Seven days post-MPTP treatment, feces were collected and gastrointestinal transit time (GITT) was measured, 8 days post-MPTP treatment, behavioral tests were performed, and then animals were sacrificed for the further analysis. We found GR 125487 pretreatment not only increased GITT, but also aggravated MPTP-induced motor bradykinesia. In addition, GR 125487 pretreatment exacerbated the loss of dopaminergic neurons probably by suppressing JAK2/PKA/CREB signaling pathway and increased reactive glia and neuroinflammation in the striatum. 16 S rRNA sequencing of fecal microbiota showed that GR 125487 pretreatment altered the composition of gut microbiota, in which the abundance of Akkermansia muciniphila and Clostridium clostridioforme was increased, whereas that of Parabacteroides distasonis and Bacteroides fragilis was decreased, which are closely associated with inflammation condition. Taken together, we demonstrated that GR 125487 pretreatment exacerbates MPTP-induced striatal neurodegenerative processes possibly via the JAK2/PKA/CREB pathway and neuroinflammation by altering gut microbiota composition. In the microbiota-gut-brain axis of PD, 5-HT4R should be further explored and might serve as a target for PD diagnosis and treatment.
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Affiliation(s)
- Chun Cui
- Department of Neurodegeneration and Injury, Wuxi School of Medicine, Jiangnan University, Wuxi, China.
| | - Yun Shi
- Department of Neurodegeneration and Injury, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Hui Hong
- Department of Neurodegeneration and Injury, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yu Zhou
- Department of Neurodegeneration and Injury, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Chenmeng Qiao
- Department of Neurodegeneration and Injury, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Liping Zhao
- Department of Neurodegeneration and Injury, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xuebing Jia
- Department of Neurodegeneration and Injury, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Weijiang Zhao
- Department of Neurodegeneration and Injury, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yanqin Shen
- Department of Neurodegeneration and Injury, Wuxi School of Medicine, Jiangnan University, Wuxi, China.
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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: 3] [Impact Index Per Article: 3.0] [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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Frith ME, Kashyap PC, Linden DR, Theriault B, Chang EB. Microbiota-dependent early life programming of gastrointestinal motility. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.08.566304. [PMID: 38014241 PMCID: PMC10680557 DOI: 10.1101/2023.11.08.566304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Gastrointestinal microbes modulate peristalsis and stimulate the enteric nervous system (ENS), whose development, as in the central nervous system (CNS), continues into the murine postweaning period. Given that adult CNS function depends on stimuli received during critical periods of postnatal development, we hypothesized that adult ENS function, namely motility, depends on microbial stimuli during similar critical periods. We gave fecal microbiota transplantation (FMT) to germ-free mice at weaning or as adults and found that only the mice given FMT at weaning recovered normal transit, while those given FMT as adults showed limited improvements. RNAseq of colonic muscularis propria revealed enrichments in neuron developmental pathways in mice exposed to gut microbes earlier in life, while mice exposed later - or not at all - showed exaggerated expression of inflammatory pathways. These findings highlight a microbiota-dependent sensitive period in ENS development, pointing to potential roles of the early life microbiome in later life dysmotility.
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25
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Stevick RJ, Audrain B, Bedu S, Dray N, Ghigo JM, Pérez-Pascual D. Anti-diarrheal drug loperamide induces dysbiosis in zebrafish microbiota via bacterial inhibition. MICROBIOME 2023; 11:252. [PMID: 37951983 PMCID: PMC10638762 DOI: 10.1186/s40168-023-01690-z] [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: 04/18/2023] [Accepted: 10/04/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Perturbations of animal-associated microbiomes from chemical stress can affect host physiology and health. While dysbiosis induced by antibiotic treatments and disease is well known, chemical, nonantibiotic drugs have recently been shown to induce changes in microbiome composition, warranting further exploration. Loperamide is an opioid-receptor agonist widely prescribed for treating acute diarrhea in humans. Loperamide is also used as a tool to study the impact of bowel dysfunction in animal models by inducing constipation, but its effect on host-associated microbiota is poorly characterized. RESULTS We used conventional and gnotobiotic larval zebrafish models to show that in addition to host-specific effects, loperamide also has anti-bacterial activities that directly induce changes in microbiota diversity. This dysbiosis is due to changes in bacterial colonization, since gnotobiotic zebrafish mono-colonized with bacterial strains sensitive to loperamide are colonized up to 100-fold lower when treated with loperamide. Consistently, the bacterial diversity of gnotobiotic zebrafish colonized by a mix of 5 representative bacterial strains is affected by loperamide treatment. CONCLUSION Our results demonstrate that loperamide, in addition to host effects, also induces dysbiosis in a vertebrate model, highlighting that established treatments can have underlooked secondary effects on microbiota structure and function. This study further provides insights for future studies exploring how common medications directly induce changes in host-associated microbiota. Video Abstract.
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Affiliation(s)
- Rebecca J Stevick
- Genetics of Biofilms Laboratory, UMR 6047, Institut Pasteur Université Paris Cité, CNRS, Paris, France
| | - Bianca Audrain
- Genetics of Biofilms Laboratory, UMR 6047, Institut Pasteur Université Paris Cité, CNRS, Paris, France
| | - Sébastien Bedu
- Zebrafish Neurogenetics Laboratory, UMR 3738, Institut Pasteur Université Paris Cité, CNRS, Paris, France
| | - Nicolas Dray
- Zebrafish Neurogenetics Laboratory, UMR 3738, Institut Pasteur Université Paris Cité, CNRS, Paris, France
| | - Jean-Marc Ghigo
- Genetics of Biofilms Laboratory, UMR 6047, Institut Pasteur Université Paris Cité, CNRS, Paris, France.
| | - David Pérez-Pascual
- Genetics of Biofilms Laboratory, UMR 6047, Institut Pasteur Université Paris Cité, CNRS, Paris, France.
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Bahar Halpern K, Korem Kohanim Y, Biram A, Harnik Y, Egozi A, Yakubovsky O, Shulman Z, Itzkovitz S. The cellular states and fates of shed intestinal cells. Nat Metab 2023; 5:1858-1869. [PMID: 37857731 DOI: 10.1038/s42255-023-00905-9] [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] [Received: 10/06/2022] [Accepted: 09/11/2023] [Indexed: 10/21/2023]
Abstract
The intestinal epithelium is replaced every few days1. Enterocytes are shed into the gut lumen predominantly from the tips of villi2,3 and have been believed to rapidly die upon their dissociation from the tissue4,5. However, technical limitations prohibited studying the cellular states and fates of shed intestinal cells. Here we show that shed epithelial cells remain viable and upregulate distinct anti-microbial programmes upon shedding, using bulk and single-cell RNA sequencing of male mouse intestinal faecal washes. We further identify abundant shedding of immune cells, which is elevated in mice with dextran sulfate sodium-induced colitis. We find that faecal host transcriptomics reflect changes in the intestinal tissue following perturbations. Our study suggests potential functions of shed cells in the intestinal lumen and demonstrates that host cell transcriptomes in intestinal washes can be used to probe tissue states.
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Affiliation(s)
- Keren Bahar Halpern
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
| | - Yael Korem Kohanim
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Adi Biram
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Yotam Harnik
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Adi Egozi
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Oran Yakubovsky
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
- Department of General Surgery and Transplantation, Sheba Medical Center, Tel-Hashomer, Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Ziv Shulman
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Shalev Itzkovitz
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
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27
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Wu J, Tian C, Jiao J, Yan Q, Zhou C, Tan Z. The epithelial transcriptome and mucosal microbiota are altered for goats fed with a low-protein diet. Front Microbiol 2023; 14:1237955. [PMID: 37731924 PMCID: PMC10507412 DOI: 10.3389/fmicb.2023.1237955] [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: 06/10/2023] [Accepted: 08/14/2023] [Indexed: 09/22/2023] Open
Abstract
Introduction Feeding low protein (LP) diet to animals impose severe challenge to animals' immune homeostasis. However, limited knowledge about the underlying adaption mechanism of host and ruminal microbiota responding to LP diet were well understood. Herein, this study was performed to examine the changes in relative abundance of ruminal microbiota and host ruminal mucosal transcriptome profiles in response to a LP diet. Methods A total of twenty-four female Xiangdong balck goats with similar weight (20.64 ± 2.40 kg) and age (8 ± 0.3 months) were randomly assigned into two groups, LP (5.52% crude protein containing diet) and CON (10.77% crude protein containing diet) groups. Upon completion of the trial, all goats were slaughtered after a 16-hour fasting period in LiuYang city (N 28°15', E 113°63') in China. HE staining, free amino acids measurement, transcriptome analysis and microbiome analysis were applied to detect the morphology alterations, free amino acids profile alterations and the shift in host ruminal mucosal transcriptome and ruminal microbiota communities. Results Firstly, the results showed that feeding LP diet to goats decreased the rumen papilla width (P = 0.043), surface area (P = 0.013) and total ruminal free amino acids concentration (P = 0.016). Secondly, microbiome analysis indicated that 9 microbial genera, including Eubacterium and Prevotella, were enriched in LP group while 11 microbial genera, including Butyrivibrio and Ruminococcus, were enriched in CON group. Finally, in terms of immune-related genes, the expression levels of genes involved in tight junction categories (e.g., MYH11, PPP2R2C, and MYL9) and acquired immunity (e.g., PCP4 and CXCL13) were observed to be upregulated in the LP group when compared to the CON group. Conclusion Under the LP diet, the rumen exhibited increased relative abundance of pathogenic microbiota and VFA-degrading microbiota, leading to disruptions in immune homeostasis within the host's ruminal mucosa. These findings indicate that the ruminal microbiota interacts with host results in the disruption in animals' immune homeostasis under LP diet challenge.
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Affiliation(s)
- Jian Wu
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Changxin Tian
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jinzhen Jiao
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Qiongxian Yan
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Chuanshe Zhou
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Zhiliang Tan
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
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Xu MM, Guo Y, Chen Y, Zhang W, Wang L, Li Y. Electro-acupuncture promotes gut motility and alleviates functional constipation by regulating gut microbiota and increasing butyric acid generation in mice. JOURNAL OF INTEGRATIVE MEDICINE 2023:S2095-4964(23)00042-0. [PMID: 37331860 DOI: 10.1016/j.joim.2023.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 03/17/2023] [Indexed: 06/20/2023]
Abstract
OBJECTIVE Abnormalities in the gut microbiota and intestinal short-chain fatty acid (SCFA) levels are implicated in the pathogenesis of functional constipation (FC). Electro-acupuncture (EA) has been shown to improve constipation-related symptoms and rebalance the gut microbiota. However, it is currently unknown whether the gut microbiota is a key mechanistic target for EA or how EA promotes gut motility by regulating the gut microbiota and SCFAs. Therefore, we assessed the effects of EA in FC mice and pseudo-germfree (PGF) mice to address these questions. METHODS Forty female Kunming mice were randomly separated into a normal control group (n = 8), an FC group (n = 8), an FC + EA group (n = 8), a PGF group (n = 8) and a PGF + EA group (n = 8). The FC group and FC + EA group were treated with diphenoxylate to establish the FC model; the PGF group and PGF + EA group were given an antibiotic cocktail to initiate the PGF model. After maintaining the model for 14 d, mice in the FC + EA and PGF + EA groups received EA stimulation at the ST25 and ST37 acupoints, once a day, 5 times per week, for 2 weeks. Fecal parameters and intestinal transit rate were calculated to assess the efficacy of EA on constipation and gastrointestinal motility. Colonic contents were used to quantify gut microbial diversity using 16S rRNA sequencing, and measure SCFA concentrations using gas chromatography-mass spectrometry. RESULTS EA significantly shortened the first black stool defecation time (P < 0.05) and increased the intestinal transit rate (P < 0.01), and fecal pellet number (P < 0.05), wet weight (P < 0.05) and water content (P < 0.01) over 8 h, compared with the FC group, showing that EA promoted gut motility and alleviated constipation. However, EA treatment did not reverse slow-transit colonic motility in PGF mice (P > 0.05), demonstrating that the gut microbiota may play a mechanistic role in the EA treatment of constipation. In addition, EA treatment restored the Firmicutes to Bacteroidetes ratio and significantly increased butyric acid generation in FC mice (P < 0.05), most likely due to the upregulation of Staphylococcaceae microorganisms (P < 0.01). CONCLUSION EA-mediated resolution of constipation occurs through rebalancing the gut microbiota and promoting butyric acid generation. Please cite this article as: Xu MM, Guo Y, Chen Y, Zhang W, Wang L, Li Y. Electro-acupuncture promotes gut motility and alleviates functional constipation by regulating gut microbiota and increasing butyric acid generation in mice. J Integr Med. 2023; Epub ahead of print.
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Affiliation(s)
- Ming-Min Xu
- School of Acupuncture-Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan Province, China; School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Yu Guo
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Ying Chen
- School of Acupuncture-Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan Province, China
| | - Wei Zhang
- Office of Educational Administration, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan Province, China
| | - Lu Wang
- School of Acupuncture-Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan Province, China
| | - Ying Li
- School of Acupuncture-Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan Province, China.
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Li H, Xiao HY, Yuan LP, Yan B, Pan Y, Tian PP, Zhang WJ. Protective effect of L-pipecolic acid on constipation in C57BL/6 mice based on gut microbiome and serum metabolomic. BMC Microbiol 2023; 23:144. [PMID: 37210496 DOI: 10.1186/s12866-023-02880-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 05/04/2023] [Indexed: 05/22/2023] Open
Abstract
BACKGROUND Functional constipation (FC) in children affects their growth, development and quality of life. L-pipecolic acid (L-PA) was decreased in FC children based on gut microbiome and serum metabolomic. In this study, loperamide-induced constipation in mice was used to evaluate the effects of L-PA on constipated mice. METHOD 26 FC and 28 healthy children were recruited. Stool samples and serum samples were subjected to 16S rDNA sequencing and ultra-performance liquid chromatography/quadrupole time of flight (UPLC-Q/TOF-MS) approach, respectively. A loperamide-induced mouse constipation model was developed, and all mice were randomly divided into control (Con), loperamide (Lop) and L-PA (Lop + L-PA) treatment groups (6 mice per group). The mice in the Lop + L-PA group were given L-PA (250 mg/kg, once a day) and loperamide; the Lop group was given loperamide for 1 week, and the Con group was given saline. The fecal parameters and intestinal motility of mice in each group were detected. serum 5-HT levels and colon 5-HT expression were detected by ELISA and immunohistochemistry, respectively; qRT-PCR was used to detect the expression of AQP3 and 5-HT4R mRNA in each group. RESULTS 45 differential metabolites and 18 significantly different microbiota were found in FC children. The α and β diversity of gut microbiota in FC children was significantly reduced. Importantly, serum L-PA was significantly reduced in FC children. The KEGG pathway enrichment were mainly enriched in fatty acid biosynthesis, lysine degradation, and choline metabolism. L-PA was negatively associated with Ochrobactrum, and N6, N6, N6-trimethyl-l-lysine was positively associated with Phascolarcrobacterium. In addition, L-PA improved the fecal water content, intestinal transit rate, and increased the serum 5-HT levels in constipated mice. Moreover, L-PA increased the expression of 5-HT4R, reduced AQP3, and regulated constipation-associated genes. CONCLUSIONS Gut microbiota and serum metabolites were significantly altered in children with FC. The abundance of Phascolarctobacterium and Ochrobactrum and serum L-PA content were decreased in FC children. L-PA was found to alleviate the fecal water content, increase intestinal transit rate and the first black stool defecation time. L-PA improved constipation by increasing 5-HT and 5-HT4R expression while down-regulating AQP3 expression.
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Affiliation(s)
- Huan Li
- Department of Pediatrics, First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
- Fuyang Hospital of Anhui Medical University, Fuyang, 236000, Anhui, China
| | - Hong-Yun Xiao
- Department of Pediatrics, First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
- Fuyang Hospital of Anhui Medical University, Fuyang, 236000, Anhui, China
| | - Li-Ping Yuan
- Department of Pediatrics, First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China.
| | - Bo Yan
- Department of Technology, Anhui Medical College, Hefei, 230022, Anhui, China
| | - Ying Pan
- Department of Technology, Anhui Medical College, Hefei, 230022, Anhui, China
| | - Ping-Ping Tian
- Department of Technology, Anhui Medical College, Hefei, 230022, Anhui, China
| | - Wei-Jie Zhang
- Department of Technology, Anhui Medical College, Hefei, 230022, Anhui, China
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30
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Lama Tamang R, Juritsch AF, Ahmad R, Salomon JD, Dhawan P, Ramer-Tait AE, Singh AB. The diet-microbiota axis: a key regulator of intestinal permeability in human health and disease. Tissue Barriers 2023; 11:2077069. [PMID: 35603609 PMCID: PMC10161950 DOI: 10.1080/21688370.2022.2077069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/07/2022] [Indexed: 01/21/2023] Open
Abstract
The intestinal barrier orchestrates selective permeability to nutrients and metabolites while excluding noxious stimuli. Recent scientific advances establishing a causal role for the gut microbiota in human health outcomes have generated a resurgent interest toward intestinal permeability. Considering the well-established role of the gut barrier in protection against foreign antigens, there is mounting evidence for a causal link between gut permeability and the microbiome in regulating human health. However, an understanding of the dynamic host-microbiota interactions that govern intestinal barrier functions remains poorly defined. Furthermore, the system-level mechanisms by which microbiome-targeted therapies, such as probiotics and prebiotics, simultaneously promote intestinal barrier function and host health remain an area of active investigation. This review summarizes the recent advances in understanding the dynamics of intestinal permeability in human health and its integration with gut microbiota. We further summarize mechanisms by which probiotics/prebiotics influence the gut microbiota and intestinal barrier functions.
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Affiliation(s)
- Raju Lama Tamang
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Anthony F. Juritsch
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Rizwan Ahmad
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Jeffrey D. Salomon
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE, USA
| | - Punita Dhawan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, USA
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, Nebraska, USA
| | - Amanda E. Ramer-Tait
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Amar B. Singh
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, USA
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, Nebraska, USA
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Wei Y, Huang N, Ye X, Liu M, Wei M, Huang Y. The postbiotic of hawthorn-probiotic ameliorating constipation caused by loperamide in elderly mice by regulating intestinal microecology. Front Nutr 2023; 10:1103463. [PMID: 37006920 PMCID: PMC10061020 DOI: 10.3389/fnut.2023.1103463] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 02/22/2023] [Indexed: 03/18/2023] Open
Abstract
BackgroundConstipation is common gastrointestinal disorder with high prevalence and recurrence, making people suffering. However, the treatment for constipation remains ineffectual. We aimed to the study the effects and mechanisms of postbiotic of hawthorn-probiotic on loperamide modeled old KM mice.MethodsConstipated mice were grouped and treated with 10% lactulose (Y), hawthorn group (S), probiotic group (F) and postbiotic of hawthorn-probiotic (FS). Fecal changes were observed. AQP3 and Enac-γ were measured by RT-qPCR and Western blotting, intestinal barrier by H&E and immunofluorescence staining, cell proliferation and apoptosis by CCK8 and flow cytometry. Gut microbiota was further determined by 16 s rRNA sequence of feces.ResultsPostbiotic of hawthorn-probiotic improved intestinal movement and pathomorphology, elevated AQP3, Enac-γ and mucin-2 expression, accompanied by decreased serum TNF-α and cell apoptosis, but increased proliferation. Furthermore, it modified the gut microbiota of constipated mice, featured by upregulation of Lactobacillaceae.ConclusionPostbiotic of hawthorn-probiotic relieved constipation by combined effects of regulating intestinal water and sodium metabolism, maintain intestinal barrier and gut microflora.Graphical Abstract
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Affiliation(s)
- Yu Wei
- Basic Medical Science College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Na Huang
- The Eighth School of Clinical Medicine (Foshan Hospital of TCM), Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xinyu Ye
- Basic Medical Science College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Meng Liu
- Basic Medical Science College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Meilian Wei
- Basic Medical Science College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Yali Huang
- Basic Medical Science College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- *Correspondence: Yali Huang,
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Costa CJ, Cohen MW, Goldberg DC, Mellado W, Willis DE. Nicotinamide Riboside Improves Enteric Neuropathy in Streptozocin-Induced Diabetic Rats Through Myenteric Plexus Neuroprotection. Dig Dis Sci 2023:10.1007/s10620-023-07913-5. [PMID: 36920665 DOI: 10.1007/s10620-023-07913-5] [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: 05/31/2022] [Accepted: 03/03/2023] [Indexed: 03/16/2023]
Abstract
BACKGROUND Diabetes Mellitus causes a systemic oxidative stress due in part to the hyperglycemia and the reactive oxygen species generated. Up to 75% of diabetic patients present with an autonomic neuropathy affecting the Enteric Nervous System. Deficits in the human population are chronic dysmotilities with either increased (i.e., constipation) or decreased (i.e., diarrhea) total gastrointestinal transit times. These are recapitulated in the streptozocin-induced diabetic rat, which is a model of Type I Diabetes Mellitus. AIMS Examine the effects that a precursor of nicotinamide adenosine dinucleotide (NAD), nicotinamide riboside (NR), had on the development of dysmotility in induced diabetic rats and if fecal microbiota transplant (FMT) could produce the same results. MATERIALS AND METHODS Utilizing a 6-week treatment paradigm, NR was administered intraperitoneally every 48 h. Total gastrointestinal transit time was assessed weekly utilizing the carmine red method. Three weeks following hyperglycemic induction, FMT was performed between NR-treated animals and untreated animals. SIGNIFICANT RESULTS There is improvement in overall gastrointestinal transit time with the use of NR. 16S microbiome sequencing demonstrated decreased alpha and beta diversity in induced diabetic rats without change in animals receiving FMT. Improvements in myenteric plexus ganglia density in small and large intestines in diabetic animals treated with NR were seen. CONCLUSIONS NR treatment led to functional improvement in total gastrointestinal transit time in induced diabetic animals. This was associated with neuroprotection in the myenteric plexuses of both small and large intestines of induced diabetic rats. This represents an important first step in showing NR's benefit as a treatment for diabetic enteric neuropathy. Streptozocin-induced diabetic rats have improved transit times and increased myenteric plexus ganglia density when treated with intraperitoneal nicotinamide riboside.
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Affiliation(s)
- Christopher J Costa
- Quinnipiac University Frank H Netter MD School of Medicine, North Haven, CT, USA. .,Burke Neurological Institute, 785 Mamaroneck Ave, White Plains, NY, 10605, USA. .,Graduate Medical Education, Internal Medicine Residency, UConn Health, 263 Farmington Ave, Farmington, CT, 06030-1235, USA.
| | - Melanie W Cohen
- Burke Neurological Institute, 785 Mamaroneck Ave, White Plains, NY, 10605, USA
| | - David C Goldberg
- Burke Neurological Institute, 785 Mamaroneck Ave, White Plains, NY, 10605, USA.,Children's Hospital of Philadelphia, 3501 Civic Center Blvd, Philadelphia, PA, 19104, USA
| | - Wilfredo Mellado
- Burke Neurological Institute, 785 Mamaroneck Ave, White Plains, NY, 10605, USA
| | - Dianna E Willis
- Burke Neurological Institute, 785 Mamaroneck Ave, White Plains, NY, 10605, USA.,Weill Cornell Medicine Feil Family Brain and Mind Research Institute, New York, NY, USA
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Jiang JG, Luo Q, Li SS, Tan TY, Xiong K, Yang T, Xiao TB. Cinnamic acid regulates the intestinal microbiome and short-chain fatty acids to treat slow transit constipation. World J Gastrointest Pharmacol Ther 2023; 14:4-21. [PMID: 36911598 PMCID: PMC9993904 DOI: 10.4292/wjgpt.v14.i2.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 01/10/2023] [Accepted: 02/21/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND Slow transit constipation (STC) is a disorder with delayed colonic transit. Cinnamic acid (CA) is an organic acid in natural plants, such as Radix Scrophulariae (Xuan Shen), with low toxicity and biological activities to modulate the intestinal microbiome.
AIM To explore the potential effects of CA on the intestinal microbiome and the primary endogenous metabolites-short-chain fatty acids (SCFAs) and evaluate the therapeutic effects of CA in STC.
METHODS Loperamide was applied to induce STC in mice. The treatment effects of CA on STC mice were assessed from the 24 h defecations, fecal moisture and intestinal transit rate. The enteric neurotransmitters: 5-hydroxytryptamine (5-HT) and vasoactive intestinal peptide (VIP) were determined by the enzyme-linked immunosorbent assay. Hematoxylin-eosin and Alcian blue and Periodic acid Schiff staining were used to evaluate intestinal mucosa's histopathological performance and secretory function. 16S rDNA was employed to analyze the composition and abundance of the intestinal microbiome. The SCFAs in stool samples were quantitatively detected by gas chromatography-mass spectrometry.
RESULTS CA ameliorated the symptoms of STC and treated STC effectively. CA ameliorated the infiltration of neutrophils and lymphocytes, increased the number of goblet cells and acidic mucus secretion of the mucosa. In addition, CA significantly increased the concentration of 5-HT and reduced VIP. CA significantly improved the diversity and abundance of the beneficial microbiome. Furthermore, the production of SCFAs [including acetic acid (AA), butyric acid (BA), propionic acid (PA) and valeric acid (VA)] was significantly promoted by CA. The changed abundance of Firmicutes, Akkermansia, Lachnoclostridium, Monoglobus, UCG.005, Paenalcaligenes, Psychrobacter and Acinetobacter were involved in the production of AA, BA, PA and VA.
CONCLUSION CA could treat STC effectively by ameliorating the composition and abundance of the intestinal microbiome to regulate the production of SCFAs.
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Affiliation(s)
- Jin-Guang Jiang
- Department of Colorectal and Anal Surgery, Suqian Hospital of Traditional Chinese Medicine, Suqian 223800, Jiangsu Province, China
| | - Qian Luo
- Department of Colorectal and Anal Surgery, Suqian Hospital of Traditional Chinese Medicine, Suqian 223800, Jiangsu Province, China
| | - Shuang-Shuang Li
- College of Clinical Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang 550000, Guizhou Province, China
| | - Tian-Ying Tan
- College of Clinical Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang 550000, Guizhou Province, China
| | - Kai Xiong
- College of Clinical Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang 550000, Guizhou Province, China
| | - Tao Yang
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550000, Guizhou Province, China
| | - Tian-Bao Xiao
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550000, Guizhou Province, China
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Liu X, Zhao Z, Fan Y, Zhao D, Wang Y, Lv M, Qin X. Microbiome and metabolome reveal the metabolic and microbial variations induced by depression and constipation. Psychogeriatrics 2023; 23:319-336. [PMID: 36683263 DOI: 10.1111/psyg.12934] [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: 10/17/2022] [Revised: 12/10/2022] [Accepted: 01/03/2023] [Indexed: 01/24/2023]
Abstract
BACKGROUND Depressed patients are often accompanied with constipation symptoms, and vice versa. However, the underlying mechanisms of such a bidirectional correlation have remained elusive. We aim to reveal the possible correlations between depression and constipation from the perspectives of gut microbiome and plasma metabolome. METHODS We constructed the depressed model and the constipated model of rats, respectively. First, we measured the locomotor activity status and the gastrointestinal functions of rats. And then, nuclear magnetic resonance plasma metabolomics was applied to reveal the shared and the unique metabolites of depression and constipation. In addition, 16 S ribosomal RNA gene sequencing was used to detect the impacts of constipation and depression on gut microbiota of rats. Finally, a multiscale and multifactorial network, that is, the 'phenotypes - differential metabolites - microbial biomarkers' integrated network, was constructed to visualise the mechanisms of connections between depression and constipation. RESULTS We found that spontaneous locomotor activity and gastrointestinal functions of both depressed rats and constipated rats significantly decreased. Further, eight metabolites and 14 metabolites were associated depression and constipation, respectively. Among them, seven metabolites and four metabolic pathways were shared by constipation and depression, mainly perturbing energy metabolism and amino acid metabolism. Additionally, depression and constipation significantly disordered the functions and the compositions of gut microbiota of rats, and decreased the ratio of Firmicutes to Bacteroidetes. CONCLUSION The current findings provide multiscale and multifactorial perspectives for understanding the correlations between depression and constipation, and demonstrate new mechanisms of comorbidity of depression and constipation.
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Affiliation(s)
- Xiaojie Liu
- Modern Research Centre for Traditional Chinese Medicine, Shanxi University, Taiyuan, China.,Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, China.,Key Laboratory of Effective Substances Research and Utilisation in Traditional Chinese Medicine of Shanxi Province, Taiyuan, China
| | - Ziyu Zhao
- Modern Research Centre for Traditional Chinese Medicine, Shanxi University, Taiyuan, China.,Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, China.,Key Laboratory of Effective Substances Research and Utilisation in Traditional Chinese Medicine of Shanxi Province, Taiyuan, China
| | - Yuhui Fan
- Modern Research Centre for Traditional Chinese Medicine, Shanxi University, Taiyuan, China.,Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, China.,Key Laboratory of Effective Substances Research and Utilisation in Traditional Chinese Medicine of Shanxi Province, Taiyuan, China
| | - Di Zhao
- Modern Research Centre for Traditional Chinese Medicine, Shanxi University, Taiyuan, China.,Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, China.,Key Laboratory of Effective Substances Research and Utilisation in Traditional Chinese Medicine of Shanxi Province, Taiyuan, China
| | - Yaze Wang
- Modern Research Centre for Traditional Chinese Medicine, Shanxi University, Taiyuan, China.,Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, China.,Key Laboratory of Effective Substances Research and Utilisation in Traditional Chinese Medicine of Shanxi Province, Taiyuan, China
| | - Meng Lv
- Modern Research Centre for Traditional Chinese Medicine, Shanxi University, Taiyuan, China.,Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, China.,Key Laboratory of Effective Substances Research and Utilisation in Traditional Chinese Medicine of Shanxi Province, Taiyuan, China
| | - Xuemei Qin
- Modern Research Centre for Traditional Chinese Medicine, Shanxi University, Taiyuan, China.,Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, China.,Key Laboratory of Effective Substances Research and Utilisation in Traditional Chinese Medicine of Shanxi Province, Taiyuan, China
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Zhang B, Pan H, Chen Z, Yin T, Zheng M, Cai L. Twin-bioengine self-adaptive micro/nanorobots using enzyme actuation and macrophage relay for gastrointestinal inflammation therapy. SCIENCE ADVANCES 2023; 9:eadc8978. [PMID: 36812317 PMCID: PMC9946363 DOI: 10.1126/sciadv.adc8978] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 01/26/2023] [Indexed: 05/28/2023]
Abstract
A wide array of biocompatible micro/nanorobots are designed for targeted drug delivery and precision therapy largely depending on their self-adaptive ability overcoming complex barriers in vivo. Here, we report a twin-bioengine yeast micro/nanorobot (TBY-robot) with self-propelling and self-adaptive capabilities that can autonomously navigate to inflamed sites for gastrointestinal inflammation therapy via enzyme-macrophage switching (EMS). Asymmetrical TBY-robots effectively penetrated the mucus barrier and notably enhanced their intestinal retention using a dual enzyme-driven engine toward enteral glucose gradient. Thereafter, the TBY-robot was transferred to Peyer's patch, where the enzyme-driven engine switched in situ to macrophage bioengine and was subsequently relayed to inflamed sites along a chemokine gradient. Encouragingly, EMS-based delivery increased drug accumulation at the diseased site by approximately 1000-fold, markedly attenuating inflammation and ameliorating disease pathology in mouse models of colitis and gastric ulcers. These self-adaptive TBY-robots represent a safe and promising strategy for the precision treatment of gastrointestinal inflammation and other inflammatory diseases.
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Affiliation(s)
- Baozhen Zhang
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong Pan
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ze Chen
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
| | - Ting Yin
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
| | - Mingbin Zheng
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
- National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518112, China
| | - Lintao Cai
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Cao J, Wang K, Li N, Zhang L, Qin L, He Y, Wang J, Qu C, Miao J. Soluble dietary fiber and cellulose from Saccharina japonica by-product ameliorate Loperamide-induced constipation via modulating enteric neurotransmitters, short-chain fatty acids and gut microbiota. Int J Biol Macromol 2023; 226:1319-1331. [PMID: 36511265 DOI: 10.1016/j.ijbiomac.2022.11.243] [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: 05/17/2022] [Revised: 07/14/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022]
Abstract
The effects of soluble dietary fiber (SDF) and cellulose (IDF) from Saccharina japonica by-product and their differences in improving constipation were further clarified in the present study. We demonstrated that SDF was mainly made up of d-mannuronic acid and d-mannose while IDF consisted of d-glucose , which is different from other reported dietary fibers of terrestrial plants. In this research, both SDF and IDF improved fecal-related indicators, gastrointestinal transit rate and histological morphology in Lop-induced mice. Moreover, they could increase the level of antioxidant enzymes (SOD and GSH-Px), restore the expression of enteric neurotransmitters, and maintain the function of ZO-1, JAM-1 as well as Occludin. Interestingly, SDF and IDF had a significant up-regulated effect on the proportion of Muribaculacea, Prevotellaceaen and Lachnospiraceae, which are critical to preserving intestinal immune homeostasis. Besides, they promoted the biosynthesis of short-chain fatty acids (SCFAs). The overall index showed that SDF is more effective for constipation due to its better water retention capacity. Thus, they can be used as a safe dietary supplement for the treatment of chronic or occasional constipation in humans.
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Affiliation(s)
- Junhan Cao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Kai Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Nianxu Li
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Liping Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Jingfeng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China.
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China.
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Feng X, Shi Y, Zhou Z, Ji Z, Zhou W, Chen S, Mao J. Alleviation of loperamide-induced constipation with sticky rice fermented huangjiu by the regulation of serum neurotransmitters and gut microbiota. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:692-704. [PMID: 36121332 DOI: 10.1002/jsfa.12181] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 08/09/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Huangjiu is an important component of traditional fermented food. It is produced by cereal fermentation. Sticky rice fermented huangjiu is an abundant source of polysaccharides, oligosaccharides, proteins, amino acids, and flavor compounds (POPAF), and it has been used as a dietary supplement and pharmaceutical ingredient. The purpose of this study is to explore the alleviation of constipation using sticky rice fermented huangjiu, with the aim of providing a basis for the nutritional treatment of constipation. RESULTS Sticky rice fermented huangjiu was more effective in the alleviation of constipation than same concentration of ethanol treatment on serum neurotransmitters, gut microbiota, and intestinal metabolites in this 17 days constipation mouse model. Compared with ethanol treatment, the administration of sticky rice fermented huangjiu to constipated mice increased gastrointestinal motility. It alleviated the decrease in motilin (27.94%), substance P (13.85%), gastrin (63.46%), 5-hydroxytryptamine (4.55%), and short-chain fatty acid (19.80%) levels, and alleviated the increase in somatostatin levels (9.54%). Furthermore, the administration of sticky rice fermented huangjiu regulated the microbiota-mediated gut ecology through alterations in the characteristic taxa. CONCLUSION The results reveal that sticky rice fermented huangjiu may alleviate loperamide-induced constipation by the regulation of serum neurotransmitters and gut microbiota. These findings reveal that huangjiu is endowed with many functional components by cereal fermentation, and the bioactive substances in huangjiu can be separated and applied for medical treatment or diet therapy in the future. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Xinjing Feng
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Ying Shi
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Zhilei Zhou
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Shaoxing Key Laboratory of Traditional Fermentation Food and Human Heath, Jiangnan University (Shaoxing) Industrial Technology Research Institute, Shaoxing, China
| | - Zhongwei Ji
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Shaoxing Key Laboratory of Traditional Fermentation Food and Human Heath, Jiangnan University (Shaoxing) Industrial Technology Research Institute, Shaoxing, China
| | - Weibiao Zhou
- Shaoxing Key Laboratory of Traditional Fermentation Food and Human Heath, Jiangnan University (Shaoxing) Industrial Technology Research Institute, Shaoxing, China
- Department of Food science and technology, National University of Singapore, Singapore, Singapore
| | - Shuguang Chen
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Beijing, China
| | - Jian Mao
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Shaoxing Key Laboratory of Traditional Fermentation Food and Human Heath, Jiangnan University (Shaoxing) Industrial Technology Research Institute, Shaoxing, China
- National Engineering Research Center of Chinese Rice Wine, Zhejiang Guyuelongshan Shaoxing Wine CO., Ltd, Shaoxing, China
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Saqib Z, De Palma G, Lu J, Surette M, Bercik P, Collins SM. Alterations in fecal β-defensin-3 secretion as a marker of instability of the gut microbiota. Gut Microbes 2023; 15:2233679. [PMID: 37464450 PMCID: PMC10355691 DOI: 10.1080/19490976.2023.2233679] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/29/2023] [Accepted: 07/03/2023] [Indexed: 07/20/2023] Open
Abstract
Compositional changes in the microbiota (dysbiosis) may be a basis for Irritable Bowel Syndrome (IBS), but biomarkers are currently unavailable to direct microbiota-directed therapy. We therefore examined whether changes in fecal β-defensin could be a marker of dysbiosis in a murine model. Experimental dysbiosis was induced using four interventions relevant to IBS: a mix of antimicrobials, westernized diets (high-fat/high-sugar and high salt diets), or mild restraint stress. Fecal mouse β-defensin-3 and 16S rRNA-based microbiome profiles were assessed at baseline and during and following these interventions. Each intervention, except for mild restraint stress, altered compositional and diversity profiles of the microbiota. Exposure to antimicrobials or a high-fat/high-sugar diet, but not mild restraint stress, resulted in decreased fecal β-defensin-3 compared to baseline. In contrast, exposure to the high salt diet increased β-defensin-3 compared to baseline. Mice exposed to the mix of antimicrobials showed the largest compositional changes and the most significant correlations between β-defensin-3 levels and bacterial diversity. The high salt diet was also associated with significant correlations between changes in β-defensin-3 and bacterial diversity, and this was not accompanied by discernible inflammatory changes in the host. Thus, dietary change or antimicrobial exposure, both recognized factors in IBS exacerbations, induced marked dysbiosis that was accompanied by changes in fecal β-defensin-3 levels. We propose that serial monitoring of fecal β-defensins may serve as a marker of dysbiosis and help identify those IBS patients who may benefit from microbiota-directed therapeutic interventions.
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Affiliation(s)
- Zarwa Saqib
- Farncombe Family Digestive Health Research Institute, Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Giada De Palma
- Farncombe Family Digestive Health Research Institute, Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Jun Lu
- Farncombe Family Digestive Health Research Institute, Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Michael Surette
- Farncombe Family Digestive Health Research Institute, Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Premysl Bercik
- Farncombe Family Digestive Health Research Institute, Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Stephen Michael Collins
- Farncombe Family Digestive Health Research Institute, Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
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Beauchamp-Walters J, Aleti G, Herrera L, Debelius J, Lima N, Dalal P, Hong S, Knight R, Rhee KE. Impact of exclusive enteral nutrition on the gut microbiome of children with medical complexity. JPEN J Parenter Enteral Nutr 2023; 47:77-86. [PMID: 35526141 DOI: 10.1002/jpen.2392] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/19/2022] [Accepted: 05/01/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Children with medical complexity (CMC) often require enteral tube feedings to meet their nutrition needs. Many, however, experience symptoms of feeding intolerance, such as vomiting and pain. The goal of this analysis was to examine the relationship between diet and the gut microbiome, controlling for medications, among CMC receiving enteral tube feedings, CMC consuming oral nutrition, and healthy controls. Given the variety of available commercial formula preparations, we were also interested in examining the impact of different formula types on the CMC microbiome. METHODS Fecal samples from 91 children (57 CMC and 34 healthy controls) were collected and analyzed. Parents completed clinical and dietary questionnaires. 16S ribosomal RNA amplicon sequencing was completed using the QIIME2 pipeline. RESULTS A significant decrease in alpha diversity among CMC receiving exclusive enteral nutrition (CMC EEN) compared with healthy controls (Shannon P = 0.006 and Faith's phylogenetic distance P = 0.006) was found that was not observed between CMC receiving oral nutrition and healthy controls. Significant differences in beta diversity were also observed between CMC EEN and healthy controls, with CMC EEN having a greater relative abundance of Enterobacteriaceae and obligate anaerobes. Differences were also noted between CMC EEN and CMC receiving oral nutrition (Aitchison distance P = 0.001); however, no differences were observed between CMC receiving oral nutrition and healthy controls. CONCLUSION Despite similarities in medication profiles, CMC EEN have decreased alpha diversity and differences in beta diversity compared with healthy controls not observed in CMC receiving oral nutrition, highlighting the impact of diet over medications.
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Affiliation(s)
- Julia Beauchamp-Walters
- Department of Pediatrics, University of California San Diego, La Jolla, California, USA.,Rady's Children's Hospital, San Diego, California, USA
| | - Gajender Aleti
- Department of Psychiatry, University of California San Diego, La Jolla, California, USA
| | - Lourdes Herrera
- Department of Pediatrics, Billings Clinic, Billings, Montana, USA
| | - Justine Debelius
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor, and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Natalie Lima
- Crean College of Health and Behavioral Sciences, Chapman University, Orange, California, USA
| | - Pritha Dalal
- Rady's Children's Hospital, San Diego, California, USA.,Department of Orthopedics, University of California San Diego, La Jolla, California, USA
| | - Suzi Hong
- Department of Psychiatry, University of California San Diego, La Jolla, California, USA.,Herbert Wertheim School of Public Health and Human Longevity Science, University of California San Diego, La Jolla, California, USA
| | - Rob Knight
- Department of Pediatrics, University of California San Diego, La Jolla, California, USA.,Department of Computer Science and Engineering, Jacobs School of Engineering, University of California San Diego, La Jolla, California, USA.,Department of Bioengineering, Jacobs School of Engineering, University of California San Diego, La Jolla, California, USA.,Center for Microbiome Innovation, University of California San Diego, La Jolla, California, USA
| | - Kyung E Rhee
- Department of Pediatrics, University of California San Diego, La Jolla, California, USA.,Rady's Children's Hospital, San Diego, California, USA
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Zádori ZS, Király K, Al-Khrasani M, Gyires K. Interactions between NSAIDs, opioids and the gut microbiota - Future perspectives in the management of inflammation and pain. Pharmacol Ther 2023; 241:108327. [PMID: 36473615 DOI: 10.1016/j.pharmthera.2022.108327] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
The composition of intestinal microbiota is influenced by a number of factors, including medications, which may have a substantial impact on host physiology. Nonsteroidal anti-inflammatory drugs (NSAIDs) and opioid analgesics are among those widely used medications that have been shown to alter microbiota composition in both animals and humans. Although much effort has been devoted to identify microbiota signatures associated with these medications, much less is known about the underlying mechanisms. Mucosal inflammation, changes in intestinal motility, luminal pH and bile acid metabolism, or direct drug-induced inhibitory effect on bacterial growth are all potential contributors to NSAID- and opioid-induced dysbiosis, however, only a few studies have addressed directly these issues. In addition, there is a notable overlap between the microbiota signatures of these drugs and certain diseases in which they are used, such as spondyloarthritis (SpA), rheumatoid arthritis (RA) and neuropathic pain associated with type 2 diabetes (T2D). The aims of the present review are threefold. First, we aim to provide a comprehensive up-to-date summary on the bacterial alterations caused by NSAIDs and opioids. Second, we critically review the available data on the possible underlying mechanisms of dysbiosis. Third, we review the current knowledge on gut dysbiosis associated with SpA, RA and neuropathic pain in T2D, and highlight the similarities between them and those caused by NSAIDs and opioids. We posit that drug-induced dysbiosis may contribute to the persistence of these diseases, and may potentially limit the therapeutic effect of these medications by long-term use. In this context, we will review the available literature data on the effect of probiotic supplementation and fecal microbiota transplantation on the therapeutic efficacy of NSAIDs and opioids in these diseases.
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Affiliation(s)
- Zoltán S Zádori
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.
| | - Kornél Király
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Mahmoud Al-Khrasani
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Klára Gyires
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
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Xia H, Chen H, Cheng X, Yin M, Yao X, Ma J, Huang M, Chen G, Liu H. Zebrafish: an efficient vertebrate model for understanding role of gut microbiota. Mol Med 2022; 28:161. [PMID: 36564702 PMCID: PMC9789649 DOI: 10.1186/s10020-022-00579-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/21/2022] [Indexed: 12/24/2022] Open
Abstract
Gut microbiota plays a critical role in the maintenance of host health. As a low-cost and genetically tractable vertebrate model, zebrafish have been widely used for biological research. Zebrafish and humans share some similarities in intestinal physiology and function, and this allows zebrafish to be a surrogate model for investigating the crosstalk between the gut microbiota and host. Especially, zebrafish have features such as high fecundity, external fertilization, and early optical transparency. These enable the researchers to employ the fish to address questions not easily addressed in other animal models. In this review, we described the intestine structure of zebrafish. Also, we summarized the methods of generating a gnotobiotic zebrafish model, the factors affecting its intestinal flora, and the study progress of gut microbiota functions in zebrafish. Finally, we discussed the limitations and challenges of the zebrafish model for gut microbiota studies. In summary, this review established that zebrafish is an attractive research tool to understand mechanistic insights into host-microbe interaction.
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Affiliation(s)
- Hui Xia
- grid.257143.60000 0004 1772 1285College of Basic Medicine, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Hongshan Disctrict, Wuhan, 430065 China
| | - Huimin Chen
- grid.257143.60000 0004 1772 1285College of Basic Medicine, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Hongshan Disctrict, Wuhan, 430065 China
| | - Xue Cheng
- grid.257143.60000 0004 1772 1285College of Basic Medicine, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Hongshan Disctrict, Wuhan, 430065 China
| | - Mingzhu Yin
- grid.257143.60000 0004 1772 1285College of Basic Medicine, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Hongshan Disctrict, Wuhan, 430065 China
| | - Xiaowei Yao
- grid.257143.60000 0004 1772 1285College of Basic Medicine, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Hongshan Disctrict, Wuhan, 430065 China
| | - Jun Ma
- grid.257143.60000 0004 1772 1285College of Basic Medicine, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Hongshan Disctrict, Wuhan, 430065 China
| | - Mengzhen Huang
- grid.257143.60000 0004 1772 1285College of Basic Medicine, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Hongshan Disctrict, Wuhan, 430065 China
| | - Gang Chen
- grid.477392.cHubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, 430061 China
| | - Hongtao Liu
- grid.257143.60000 0004 1772 1285College of Basic Medicine, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Hongshan Disctrict, Wuhan, 430065 China
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Lund PJ, Gates LA, Leboeuf M, Smith SA, Chau L, Lopes M, Friedman ES, Saiman Y, Kim MS, Shoffler CA, Petucci C, Allis CD, Wu GD, Garcia BA. Stable isotope tracing in vivo reveals a metabolic bridge linking the microbiota to host histone acetylation. Cell Rep 2022; 41:111809. [PMID: 36516747 PMCID: PMC9994635 DOI: 10.1016/j.celrep.2022.111809] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 03/09/2022] [Accepted: 11/17/2022] [Indexed: 12/14/2022] Open
Abstract
The gut microbiota influences acetylation on host histones by fermenting dietary fiber into butyrate. Although butyrate could promote histone acetylation by inhibiting histone deacetylases, it may also undergo oxidation to acetyl-coenzyme A (CoA), a necessary cofactor for histone acetyltransferases. Here, we find that epithelial cells from germ-free mice harbor a loss of histone H4 acetylation across the genome except at promoter regions. Using stable isotope tracing in vivo with 13C-labeled fiber, we demonstrate that the microbiota supplies carbon for histone acetylation. Subsequent metabolomic profiling revealed hundreds of labeled molecules and supported a microbial contribution to host fatty acid metabolism, which declined in response to colitis and correlated with reduced expression of genes involved in fatty acid oxidation. These results illuminate the flow of carbon from the diet to the host via the microbiota, disruptions to which may affect energy homeostasis in the distal gut and contribute to the development of colitis.
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Affiliation(s)
- Peder J Lund
- Department of Biochemistry and Biophysics, Penn Epigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Leah A Gates
- Laboratory of Chromatin Biology and Epigenetics, The Rockefeller University, New York, NY 10065, USA
| | - Marylene Leboeuf
- Laboratory of Chromatin Biology and Epigenetics, The Rockefeller University, New York, NY 10065, USA
| | - Sarah A Smith
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Lillian Chau
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Mariana Lopes
- Department of Biochemistry and Biophysics, Penn Epigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Elliot S Friedman
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Yedidya Saiman
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Min Soo Kim
- Metabolomics Core, Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Clarissa A Shoffler
- Metabolomics Core, Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Christopher Petucci
- Metabolomics Core, Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - C David Allis
- Laboratory of Chromatin Biology and Epigenetics, The Rockefeller University, New York, NY 10065, USA
| | - Gary D Wu
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Benjamin A Garcia
- Department of Biochemistry and Biophysics, Penn Epigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104, USA.
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Malinowska AM, Kok DE, Steegenga WT, Hooiveld GJEJ, Chmurzynska A. Human gut microbiota composition and its predicted functional properties in people with western and healthy dietary patterns. Eur J Nutr 2022; 61:3887-3903. [PMID: 35748920 PMCID: PMC9596542 DOI: 10.1007/s00394-022-02928-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 05/31/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE Some dietary habits cluster together, and for this reason it is advised to study the impact of entire dietary patterns on human health, rather than that of individual dietary habits. The main objective of this study was to evaluate differences in gut microbiota composition and their predicted functional properties between people with a healthy (HDP) and western (WDP) dietary pattern. METHODS A cross-sectional, observational study was carried out on 200 participants enrolled 2017-2018 in Poznań, Poland, equally distributed into HDP and WDP groups. Diet was estimated using 3-day food records and information on stool transit times was collected. Fecal microbiota composition was assessed by 16S rRNA gene sequencing and its functional properties were predicted by the PICRUSt2 workflow. RESULTS The α-diversity did not differ between people with WDP and HDP, but β-diversity was associated with dietary pattern. People with HDP had higher relative abundances (RA) of Firmicutes and Faecalibacterium and lower RA of Bacteroidota and Escherichia-Shigella than participants with WDP. Only a small proportion of the variance in microbiota composition (1.8%) and its functional properties (2.9%) could be explained by dietary intake (legumes, simple sugars and their sources, like fruit, soft drinks) and stool transit characteristics. CONCLUSION Gut microbiota composition and predicted metabolic potential is shaped by overall diet quality as well as the frequency of defecation; however, the cumulative effect of these explain only a relatively low proportion of variance.
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Affiliation(s)
- Anna M Malinowska
- Department of Human Nutrition and Dietetics, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624, Poznan, Poland.
- Division of Human Nutrition and Health, Wageningen University and Research, PO Box 17, 6700 AA, Wageningen, The Netherlands.
| | - Dieuwertje E Kok
- Division of Human Nutrition and Health, Wageningen University and Research, PO Box 17, 6700 AA, Wageningen, The Netherlands
| | - Wilma T Steegenga
- Division of Human Nutrition and Health, Wageningen University and Research, PO Box 17, 6700 AA, Wageningen, The Netherlands
| | - Guido J E J Hooiveld
- Division of Human Nutrition and Health, Wageningen University and Research, PO Box 17, 6700 AA, Wageningen, The Netherlands
| | - Agata Chmurzynska
- Department of Human Nutrition and Dietetics, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624, Poznan, Poland
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44
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Neyrinck AM, Rodriguez J, Taminiau B, Herpin F, Cani PD, Daube G, Bindels LB, Delzenne NM. Constipation Mitigation by Rhubarb Extract in Middle-Aged Adults Is Linked to Gut Microbiome Modulation: A Double-Blind Randomized Placebo-Controlled Trial. Int J Mol Sci 2022; 23:ijms232314685. [PMID: 36499011 PMCID: PMC9738964 DOI: 10.3390/ijms232314685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/17/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022] Open
Abstract
Gut microbiota alterations are intimately linked to chronic constipation upon aging. We investigated the role of targeted changes in the gut microbiota composition in the relief of constipation symptoms after rhubarb extract (RE) supplementation in middle-aged volunteers. Subjects (95% women, average 58 years old) were randomized to three groups treated with RE at two different doses determined by its content of rhein (supplementation of 12.5 mg and 25 mg per day) vs. placebo (maltodextrin) for 30 days. We demonstrated that daily oral supplementation of RE for 30 days was safe even at the higher dose. Stool frequency and consistency, and perceived change in transit problem, transit speed and difficulty in evacuating, investigated by validated questionnaires, were improved in both groups of RE-treated volunteers compared to placebo. Higher abundance of Lachnospiraceae (mainly Roseburia and Agathobacter) only occurred after RE treatment when present at low levels at baseline, whereas an opposite shift in short-chain fatty acid (SCFA) levels was observed in both RE-treated groups (increase) and placebo (decrease). Fecal Lachnospiraceae and SCFA were positively correlated with stool consistency. This study demonstrates that RE supplementation promotes butyrate-producing bacteria and SCFA, an effect that could contribute to relieving chronic constipation in middle-aged persons.
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Affiliation(s)
- Audrey M. Neyrinck
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Julie Rodriguez
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Bernard Taminiau
- Fundamental and Applied Research for Animal and Health (FARAH), Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| | | | - Patrice D. Cani
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, 1200 Brussels, Belgium
- WELBIO-Walloon Excellence in Life Sciences and Biotechnology, WELBIO Department, WEL Research Institute, 1300 Wavre, Belgium
| | - Georges Daube
- Fundamental and Applied Research for Animal and Health (FARAH), Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| | - Laure B. Bindels
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Nathalie M. Delzenne
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, 1200 Brussels, Belgium
- Correspondence:
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45
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McHarg AS, Leach S. The role of the gut microbiome in paediatric irritable bowel syndrome. AIMS Microbiol 2022; 8:454-469. [PMID: 36694592 PMCID: PMC9834077 DOI: 10.3934/microbiol.2022030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 11/23/2022] Open
Abstract
Irritable bowel syndrome (IBS) is a common and disabling condition in children. The pathophysiology of IBS is thought to be multifactorial but remains incompletely understood. There is growing evidence implicating the gut microbiome in IBS. Intestinal dysbiosis has been demonstrated in paediatric IBS cohorts; however, no uniform or consistent pattern has been identified. The exact mechanisms by which this dysbiosis contributes to IBS symptoms remain unknown. Available evidence suggests the imbalance produces a functional dysbiosis, with altered production of gases and metabolites that interact with the intestinal wall to cause symptoms, and enrichment or depletion of certain metabolic pathways. Additional hypothesised mechanisms include increased intestinal permeability, visceral hypersensitivity and altered gastrointestinal motility; however, these remain speculative in paediatric patients, with studies limited to animal models and adult populations. Interaction between dietary components and intestinal microbiota, particularly with fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAPs), has drawn increasing attention. FODMAPs have been found to trigger and worsen IBS symptoms. This is thought to be related to products of their fermentation by a dysbiotic microbial population, although this remains to be proven. A low-FODMAP diet has shown promising success in ameliorating symptoms in some but not all patients. There remains much to be discovered about the role of the dysbiotic microbiome in paediatric IBS.
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Affiliation(s)
- Alexandra S McHarg
- School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia,Westfield Research Laboratories, Sydney Children's Hospital, Randwick, NSW, Australia,* Correspondence:
| | - Steven Leach
- School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia,Westfield Research Laboratories, Sydney Children's Hospital, Randwick, NSW, Australia
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46
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Stapelberg NJC, Bui TA, Mansour V, Johnson S, Branjerdporn G, Adhikary S, Ashton K, Taylor N, Headrick JP. The pathophysiology of major depressive disorder through the lens of systems biology: Network analysis of the psycho-immune-neuroendocrine physiome. J Neuroimmunol 2022; 372:577959. [PMID: 36095861 DOI: 10.1016/j.jneuroim.2022.577959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 08/21/2022] [Accepted: 08/26/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND/AIMS The psycho-immune-neuroendocrine (PINE) network is a predominantly physiological (metabolomic) model constructed from the literature, inter-linking multiple biological processes associated with major depressive disorder (MDD), thereby integrating putative mechanistic pathways for MDD into a single network. MATERIAL AND METHODS Previously published metabolomic pathways for the PINE network based on literature searches conducted in 1991-2021 were used to construct an edge table summarizing all physiological pathways in pairs of origin nodes and target nodes. The Gephi software program was used to calculate network metrics from the edge table, including total degree and centrality measures, to ascertain key network nodes and construct a directed network graph. RESULTS An edge table and directional network graph of physiological relationships in the PINE network is presented. The network has properties consistent with complex biological systems, with analysis yielding key network nodes comprising pro-inflammatory cytokines (TNF- α, IL6 and IL1), glucocorticoids and corticotropin releasing hormone (CRH). These may represent central structural and regulatory elements in the context of MDD. CONCLUSION The identified hubs have a high degree of connection and are known to play roles in the progression from health to MDD. These nodes represent strategic targets for therapeutic intervention or prevention. Future work is required to build a weighted and dynamic simulation of the network PINE.
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Affiliation(s)
- Nicolas J C Stapelberg
- Bond University, Faculty of Health Sciences and Medicine, Robina, Australia; Gold Coast Health, Southport, Australia
| | | | - Verena Mansour
- Bond University, Faculty of Health Sciences and Medicine, Robina, Australia
| | | | - Grace Branjerdporn
- Gold Coast Health, Southport, Australia; Mater Young Adult Health Service, Mater Hospital, South Brisbane, Australia.
| | - Sam Adhikary
- Mater Young Adult Health Service, Mater Hospital, South Brisbane, Australia
| | - Kevin Ashton
- Bond University, Faculty of Health Sciences and Medicine, Robina, Australia
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Stapelberg NJC, Branjerdporn G, Adhikary S, Johnson S, Ashton K, Headrick J. Environmental Stressors and the PINE Network: Can Physical Environmental Stressors Drive Long-Term Physical and Mental Health Risks? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13226. [PMID: 36293807 PMCID: PMC9603079 DOI: 10.3390/ijerph192013226] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/10/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Both psychosocial and physical environmental stressors have been linked to chronic mental health and chronic medical conditions. The psycho-immune-neuroendocrine (PINE) network details metabolomic pathways which are responsive to varied stressors and link chronic medical conditions with mental disorders, such as major depressive disorder via a network of pathophysiological pathways. The primary objective of this review is to explore evidence of relationships between airborne particulate matter (PM, as a concrete example of a physical environmental stressor), the PINE network and chronic non-communicable diseases (NCDs), including mental health sequelae, with a view to supporting the assertion that physical environmental stressors (not only psychosocial stressors) disrupt the PINE network, leading to NCDs. Biological links have been established between PM exposure, key sub-networks of the PINE model and mental health sequelae, suggesting that in theory, long-term mental health impacts of PM exposure may exist, driven by the disruption of these biological networks. This disruption could trans-generationally influence health; however, long-term studies and information on chronic outcomes following acute exposure event are still lacking, limiting what is currently known beyond the acute exposure and all-cause mortality. More empirical evidence is needed, especially to link long-term mental health sequelae to PM exposure, arising from PINE pathophysiology. Relationships between physical and psychosocial stressors, and especially the concept of such stressors acting together to impact on PINE network function, leading to linked NCDs, evokes the concept of syndemics, and these are discussed in the context of the PINE network.
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Affiliation(s)
- Nicolas J. C. Stapelberg
- Gold Coast Hospital and Health Service, Gold Coast, QLD 4215, Australia
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD 4226, Australia
| | - Grace Branjerdporn
- Gold Coast Hospital and Health Service, Gold Coast, QLD 4215, Australia
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD 4226, Australia
| | - Sam Adhikary
- Mater Young Adult Health Centre, Mater Hospital, Brisbane, QID 4101, Australia
| | - Susannah Johnson
- Gold Coast Hospital and Health Service, Gold Coast, QLD 4215, Australia
| | - Kevin Ashton
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD 4226, Australia
| | - John Headrick
- School of Medical Science, Griffith University, Gold Coast, QID 4215, Australia
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Legan TB, Lavoie B, Mawe GM. Direct and indirect mechanisms by which the gut microbiota influence host serotonin systems. Neurogastroenterol Motil 2022; 34:e14346. [PMID: 35246905 PMCID: PMC9441471 DOI: 10.1111/nmo.14346] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/22/2022] [Indexed: 12/18/2022]
Abstract
Mounting evidence highlights the pivotal role of enteric microbes as a dynamic interface with the host. Indeed, the gut microbiota, located in the lumen of the gastrointestinal (GI) tract, influence many essential physiological processes that are evident in both healthy and pathological states. A key signaling molecule throughout the body is serotonin (5-hydroxytryptamine; 5-HT), which acts in the GI tract to regulate numerous gut functions including intestinal motility and secretion. The gut microbiota can modulate host 5-HT systems both directly and indirectly. Direct actions of gut microbes, evidenced by studies using germ-free animals or antibiotic administration, alter the expression of key 5-HT-related genes to promote 5-HT biosynthesis. Indirectly, the gut microbiota produce numerous microbial metabolites, whose actions can influence host serotonergic systems in a variety of ways. This review summarizes the current knowledge regarding mechanisms by which gut bacteria act to regulate host 5-HT and 5-HT-mediated gut functions, as well as implications for 5-HT in the microbiota-gut-brain axis.
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Affiliation(s)
- Theresa B Legan
- Department of Neurological Sciences, University of Vermont, Burlington, Vermont, USA
| | - Brigitte Lavoie
- Department of Neurological Sciences, University of Vermont, Burlington, Vermont, USA
| | - Gary M Mawe
- Department of Neurological Sciences, University of Vermont, Burlington, Vermont, USA
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An J, Wang L, Song S, Tian L, Liu Q, Mei M, Li W, Liu S. Electroacupuncture reduces blood glucose by regulating intestinal flora in type 2 diabetic mice. J Diabetes 2022; 14:695-710. [PMID: 36195536 PMCID: PMC9574722 DOI: 10.1111/1753-0407.13323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 08/13/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The development of diabetes is closely related to the gut microbiota in recent studies, which can be influenced by intestinal motility. A few studies report that electroacupuncture (EA) can lower blood glucose. EA can promote colonic motility and influence gut microbes. In this study, we explored the effect of the EA on blood glucose level in mice with type 2 diabetes (T2D) and its mechanism. METHODS The T2D mice model, fecal microbiota transplantation mice model, and KitW/Wv mice model (Point mutation of mouse W locus encoding kit gene)were used to investigate the effect of EA on blood glucose as well as the mechanism; The blood glucose and insulin resistance level and the intestinal flora were evaluated. The level of intestinal junction protein, inflammatory cytokines in the serum, interstitial cells of Cajal content, and colonic motility were detected. Lastly, the IKKβ/NF-κB-JNK-IRS-1-AKT pathway was explored. RESULTS EA lowered the blood glucose level, altered the gut microbiota, and promoted colonic motility in T2D mice. EA-altered microbiota decreased the blood glucose level and insulin resistance in the antibiotics-treated diabetic mice. EA increased tight junction protein, lowered inflammatory factors, and regulated the IKKβ/NF-κB-JNK-IRS-1-AKT pathway in the liver and muscles. EA could not reduce the blood glucose and regulated gut microbiota in the KitW/Wv mice model. CONCLUSIONS EA promoted intestinal motility to regulate the intestinal flora, thereby reducing the level of systemic inflammation, and ultimately lowering the blood glucose by the IKKβ/NF-κB-JNK-IRS-1-AKT signal pathway.
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Affiliation(s)
- Jing An
- Department of Gastroenterology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Lingli Wang
- Department of Gastroenterology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Shuangning Song
- Department of Gastroenterology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Lugao Tian
- Department of Gastroenterology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Qingqing Liu
- Department of Gastroenterology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Minhui Mei
- Department of Gastroenterology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Wenhua Li
- Department of Gastroenterology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Shi Liu
- Department of Gastroenterology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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Prevention of Loperamide-Induced Constipation in Mice and Alteration of 5-Hydroxytryotamine Signaling by Ligilactobacillus salivarius Li01. Nutrients 2022; 14:nu14194083. [PMID: 36235735 PMCID: PMC9571718 DOI: 10.3390/nu14194083] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/26/2022] [Accepted: 09/26/2022] [Indexed: 11/09/2022] Open
Abstract
Although Ligilactobacillus salivarius Li01 (Li01) has shown much promise in preventing multiple gastrointestinal diseases, the potential of the probiotic in alleviating constipation and the related mechanisms remain unclear. In this study, the effects of Li01 were evaluated in a loperamide-induced constipation mouse model. The results demonstrated that Li01 intervention can relieve constipation symptoms by improving water content, quantity, and morphology of feces and act as an intestinal barrier structure protector. Furthermore, Li01 can modulate gut motility (gastrointestinal transit rate), the fluid transit-associated expression of aquaporins, and the serum parameters vasoactive intestinal peptide, substance P, and somatostatin. Constipation significantly increased the levels of 5-hydroxytryotamine (5-HT) in serum (p < 0.01) and decreased the levels in the intestine (p < 0.001). Due to its function of elevating the expression of tryptophan hydroxylase 1, this was reversed after Li01 treatment. Li01 also promoted the expression of 5-HT receptor 3 and 4, indicating that the 5-HT signaling pathway may play a critical role in the mechanism by which Li01 alleviate constipation symptoms. Additionally, Li01 significantly altered the gut microbiota composition by enhancing the ratio of Firmicutes/Bacteroidetes and increasing the abundance of Rikenellaceae_RC9 genera. Based on the above results, Li01 may have the potential to effectively alleviate constipation by regulating the 5-HT pathway and alteration of the gut microbiota.
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