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Zhang Q, Liu S, Wu J, Zhu S, Wu Y, Wu S, Zhang S. Non-alcoholic fatty liver degree and long-term risk of incident inflammatory bowel disease: A large-scale prospective cohort study. Chin Med J (Engl) 2024; 137:1705-1714. [PMID: 37962217 PMCID: PMC11268827 DOI: 10.1097/cm9.0000000000002859] [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: 04/17/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) and inflammatory bowel disease (IBD) have shown similar worsening epidemic patterns globally and shared various overlapping pathophysiological mechanisms. However, evidence on the relationship between NAFLD and IBD risk is lacking. We aimed to investigate the associations between long-term risk of incident IBD and NAFLD in a large prospective cohort. METHODS Participants from the United Kingdom Biobank cohort ( https://biobank.ndph.ox.ac.uk/ ) who were free of IBD and alcoholic liver disease at baseline were enrolled. Baseline non-alcoholic fatty liver degree was measured by the well-established fatty liver index (FLI). The outcomes of interest included incident IBD, ulcerative colitis (UC), and Crohn's disease (CD). Multivariable Cox proportional hazard regression was used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS Among 418,721 participants (mean FLI: 48.11 ± 30.11), 160,807 (38.40%) participants were diagnosed as NAFLD at baseline. During a median of 12.4 years' follow-up, 2346 incident IBD cases (1545 UC, 653 CD, and 148 IBD-unclassified) were identified. Due to limited events, those IBD-unclassified were combined in UC or CD when examining the associated risk of UC or CD, separately. Compared with the lowest quartile of FLI, the highest quartile showed a separately 36.00%, 25.00%, and 58.00% higher risk of incident IBD (HR Q4 vs.Q1 = 1.36, 95% CI: 1.19-1.55, Ptrend <0.001), UC (HR Q4 vs.Q1 = 1.25, 95% CI: 1.07-1.46, Ptrend = 0.047), and CD (HR Q4 vs.Q1 = 1.58, 95% CI: 1.26-1.97, Ptrend <0.001) after multivariable adjustment. Compared with non-NAFLD, NAFLD participants had a significantly higher risk of incident IBD (HR = 1.13, 95% CI: 1.04-1.24) and CD (HR = 1.36, 95% CI: 1.17-1.58). CONCLUSIONS Higher degree of non-alcoholic fatty liver is associated with increased risk of incident IBD. Interventions aimed at improving NAFLD may be a potential targeted strategy for the detection and treatment of IBD.
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Affiliation(s)
| | | | | | | | | | - Shanshan Wu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing 100050, China
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Abar L, Zuber V, Otto GW, Tzoulaki I, Dehghan A. Unravelling genetic architecture of circulatory amino acid levels, and their effect on risk of complex disorders. NAR Genom Bioinform 2024; 6:lqae046. [PMID: 38711861 PMCID: PMC11071119 DOI: 10.1093/nargab/lqae046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/27/2024] [Accepted: 04/23/2024] [Indexed: 05/08/2024] Open
Abstract
Variations in serum amino acid levels are linked to a multitude of complex disorders. We report the largest genome-wide association study (GWAS) on nine serum amino acids in the UK Biobank participants (117 944, European descent). We identified 34 genomic loci for circulatory levels of alanine, 48 loci for glutamine, 44 loci for glycine, 16 loci for histidine, 11 loci for isoleucine, 19 loci for leucine, 9 loci for phenylalanine, 32 loci for tyrosine and 20 loci for valine. Our gene-based analysis mapped 46-293 genes associated with serum amino acids, including MIP, GLS2, SLC gene family, GCKR, LMO1, CPS1 and COBLL1.The gene-property analysis across 30 tissues highlighted enriched expression of the identified genes in liver tissues for all studied amino acids, except for isoleucine and valine, in muscle tissues for serum alanine and glycine, in adrenal gland tissues for serum isoleucine and leucine, and in pancreatic tissues for serum phenylalanine. Mendelian randomization (MR) phenome-wide association study analysis and subsequent two-sample MR analysis provided evidence that every standard deviation increase in valine is associated with 35% higher risk of type 2 diabetes and elevated levels of serum alanine and branched-chain amino acids with higher levels of total cholesterol, triglyceride and low-density lipoprotein, and lower levels of high-density lipoprotein. In contrast to reports by observational studies, MR analysis did not support a causal association between studied amino acids and coronary artery disease, Alzheimer's disease, breast cancer or prostate cancer. In conclusion, we explored the genetic architecture of serum amino acids and provided evidence supporting a causal role of amino acids in cardiometabolic health.
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Affiliation(s)
- Leila Abar
- Department of Epidemiology & Biostatistics, School of Public Health, Faculty of Medicine, Imperial College London, St Mary’s Campus, Norfolk Place, London W2 1PG, UK
| | - Verena Zuber
- Department of Epidemiology & Biostatistics, School of Public Health, Faculty of Medicine, Imperial College London, St Mary’s Campus, Norfolk Place, London W2 1PG, UK
| | - Georg W Otto
- Department of Epidemiology & Biostatistics, School of Public Health, Faculty of Medicine, Imperial College London, St Mary’s Campus, Norfolk Place, London W2 1PG, UK
| | - Ioanna Tzoulaki
- Department of Epidemiology & Biostatistics, School of Public Health, Faculty of Medicine, Imperial College London, St Mary’s Campus, Norfolk Place, London W2 1PG, UK
- Centre for Systems Biology, Biomedical Research Foundation Academy of Athens, 115 27 Athens, Greece
- BHF Centre of Excellence, School of Public Health, Imperial College London, London W2 1PG, UK
- UK Dementia Research Institute, Imperial College London, London W12 0BZ, UK
| | - Abbas Dehghan
- Department of Epidemiology & Biostatistics, School of Public Health, Faculty of Medicine, Imperial College London, St Mary’s Campus, Norfolk Place, London W2 1PG, UK
- BHF Centre of Excellence, School of Public Health, Imperial College London, London W2 1PG, UK
- UK Dementia Research Institute, Imperial College London, London W12 0BZ, UK
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Questa M, Weimer BC, Fiehn O, Chow B, Hill SL, Ackermann MR, Lidbury JA, Steiner JM, Suchodolski JS, Marsilio S. Unbiased serum metabolomic analysis in cats with naturally occurring chronic enteropathies before and after medical intervention. Sci Rep 2024; 14:6939. [PMID: 38521833 PMCID: PMC10960826 DOI: 10.1038/s41598-024-57004-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/13/2024] [Indexed: 03/25/2024] Open
Abstract
Chronic enteropathies (CE) are common disorders in cats and the differentiation between the two main underlying diseases, inflammatory bowel disease (IBD) and low-grade intestinal T-cell lymphoma (LGITL), can be challenging. Characterization of the serum metabolome could provide further information on alterations of disease-associated metabolic pathways and may identify diagnostic or therapeutic targets. Unbiased metabolomics analysis of serum from 28 cats with CE (14 cats with IBD, 14 cats with LGITL) and 14 healthy controls identified 1,007 named metabolites, of which 129 were significantly different in cats with CE compared to healthy controls at baseline. Random Forest analysis revealed a predictive accuracy of 90% for differentiating controls from cats with chronic enteropathy. Metabolic pathways found to be significantly altered included phospholipids, amino acids, thiamine, and tryptophan metabolism. Several metabolites were found to be significantly different between cats with IBD versus LGITL, including several sphingolipids, phosphatidylcholine 40:7, uridine, pinitol, 3,4-dihydroxybenzoic acid, and glucuronic acid. However, random forest analysis revealed a poor group predictive accuracy of 60% for the differentiation of IBD from LGITL. Of 129 compounds found to be significantly different between healthy cats and cats with CE at baseline, 58 remained different following treatment.
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Affiliation(s)
- Maria Questa
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Bart C Weimer
- Department of Population Health and Reproduction, 100K Pathogen Genome Project, University of California School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Oliver Fiehn
- West Coast Metabolomics Center, University of California Davis, Davis, CA, USA
| | - Betty Chow
- VCA Animal Specialty & Emergency Center, Los Angeles, CA, USA
| | - Steve L Hill
- Veterinary Specialty Hospital, San Diego, CA, USA
| | - Mark R Ackermann
- US Department of Agriculture, National Animal Disease Center, Ames, IA, USA
| | - Jonathan A Lidbury
- Gastrointestinal Laboratory, Texas A&M University, College Station, TX, USA
| | - Joerg M Steiner
- Gastrointestinal Laboratory, Texas A&M University, College Station, TX, USA
| | - Jan S Suchodolski
- Gastrointestinal Laboratory, Texas A&M University, College Station, TX, USA
| | - Sina Marsilio
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA.
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Cioffi I, Di Vincenzo O, Imperatore N, Fisco M, Testa A, Scialò F, Castiglione F, Ruoppolo M, Pasanisi F, Santarpia L. Amino acid profiles, disease activity, and protein intake in adult patients with Crohn's disease. Front Nutr 2023; 10:1245574. [PMID: 37854352 PMCID: PMC10579601 DOI: 10.3389/fnut.2023.1245574] [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: 06/23/2023] [Accepted: 09/20/2023] [Indexed: 10/20/2023] Open
Abstract
Introduction Crohn's disease (CD) is an immune-mediated inflammatory disorder of the gastrointestinal tract with a relapsing-remitting course. Amino acids (AAs) may play critical roles in the intestinal manifestations of disease, due to their involvement in many metabolic and immune functions. The present study aimed to explore serum AA concentrations in adult patients with CD, looking into their variations due to disease activity, surgery and protein content of diet. Eventually, the link between AAs and inflammatory markers was also assessed. Methods Consecutive adult patients aged 18-65 years with diagnosis of CD were recruited. All participants underwent anthropometry and were instructed to fill in a 3-day food record to assess protein intake. Disease activity was clinically defined using the Crohn's Disease Activity Index (CDAI), while blood samples were taken to analyze serum AA profile and inflammatory markers. Results A total of 103 patients with CD (61 men and 42 women; age:39.9 ± 13.9 years, BMI: 23.4 ± 3.51 kg/m2) were included. Tryptophan levels were found to be remarkably decreased in most subjects, unrelated to disease activity. On the contrary, concentration of lysine, leucine, valine and glutamine decreased in active versus quiescent CD patients, while aspartic acid, glutamate and glycine increased. The latter AAs were also directly correlated with CDAI and serum interleukin (IL)- 1β concentration. Considering the total protein intake, expressed as g/kg/body weight, we observed a reduction in some essential AAs in patients with unmet protein requirements compared to patients who met the recommendation. Discussion In conclusion, specific AAs varied according to disease activity and protein intake, adjusted to body weight and disease status. Glu and Asp concentrations raised with increasing IL-1β. However, extensive research is needed to understand the mechanisms underpinning the link between variation in serum AAs, disease activity and protein intake in patients with CD.
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Affiliation(s)
- Iolanda Cioffi
- Division of Human Nutrition, Department of Food, Environmental and Nutritional Sciences - DEFENS, Università degli Studi di Milano, Milan, Italy
- Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Olivia Di Vincenzo
- Department of Public Health, Federico II University Hospital, Naples, Italy
| | - Nicola Imperatore
- Gastroenterology and Endoscopy Unit, Santa Maria delle Grazie Hospital, Pozzuoli, Naples, Italy
| | - Mariagrazia Fisco
- CEINGE - Biotecnologie Avanzate F. Salvatore, s.c.ar.l, Napoli, Italy
| | - Anna Testa
- Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Filippo Scialò
- CEINGE - Biotecnologie Avanzate F. Salvatore, s.c.ar.l, Napoli, Italy
- Department of Translational Medical Sciences, University of Campania L. Vanvitelli, Naples, Italy
| | - Fabiana Castiglione
- Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Margherita Ruoppolo
- CEINGE - Biotecnologie Avanzate F. Salvatore, s.c.ar.l, Napoli, Italy
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Naples, Italy
| | - Fabrizio Pasanisi
- Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Lidia Santarpia
- Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
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Fecal amine metabolite analysis before onset of severe necrotizing enterocolitis in preterm infants: a prospective case-control study. Sci Rep 2022; 12:12310. [PMID: 35853977 PMCID: PMC9296556 DOI: 10.1038/s41598-022-16351-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 07/08/2022] [Indexed: 11/08/2022] Open
Abstract
Infants developing necrotizing enterocolitis (NEC) have a different metabolomic profile compared to controls. The potential of specific metabolomics, i.e. amino acids and amino alcohols (AAA), as early diagnostic biomarkers for NEC is largely unexplored. In this multicenter prospective case-control study, longitudinally collected fecal samples from preterm infants (born <30 weeks of gestation) from 1-3 days before diagnosis of severe NEC (Bell's stage IIIA/IIIB), were analyzed by targeted high-performance liquid chromatography (HPLC). Control samples were collected from gestational and postnatal age-matched infants. Thirty-one NEC cases (15 NEC IIIA;16 NEC IIIB) with 1:1 matched controls were included. Preclinical samples of infants with NEC were characterized by five increased essential amino acids-isoleucine, leucine, methionine, phenylalanine and valine. Lysine and ethanolamine ratios were lower prior to NEC, compared to control samples. A multivariate model was rendered based on isoleucine, lysine, ethanolamine, tryptophan and ornithine, modestly discriminating cases from controls (AUC 0.67; p < 0.001). Targeted HPLC pointed to several specific AAA alterations in samples collected 1-3 days before NEC onset, compared to controls. Whether this reflects metabolic alterations and has a role in early biomarker development for NEC, has yet to be elucidated.
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Hyun CK. Molecular and Pathophysiological Links between Metabolic Disorders and Inflammatory Bowel Diseases. Int J Mol Sci 2021; 22:ijms22179139. [PMID: 34502047 PMCID: PMC8430512 DOI: 10.3390/ijms22179139] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 08/21/2021] [Accepted: 08/22/2021] [Indexed: 02/07/2023] Open
Abstract
Despite considerable epidemiological evidence indicating comorbidity between metabolic disorders, such as obesity, type 2 diabetes, and non-alcoholic fatty liver disease, and inflammatory bowel diseases (IBD), such as Crohn’s disease and ulcerative colitis, as well as common pathophysiological features shared by these two categories of diseases, the relationship between their pathogenesis at molecular levels are not well described. Intestinal barrier dysfunction is a characteristic pathological feature of IBD, which also plays causal roles in the pathogenesis of chronic inflammatory metabolic disorders. Increased intestinal permeability is associated with a pro-inflammatory response of the intestinal immune system, possibly leading to the development of both diseases. In addition, dysregulated interactions between the gut microbiota and the host immunity have been found to contribute to immune-mediated disorders including the two diseases. In connection with disrupted gut microbial composition, alterations in gut microbiota-derived metabolites have also been shown to be closely related to the pathogeneses of both diseases. Focusing on these prominent pathophysiological features observed in both metabolic disorders and IBD, this review highlights and summarizes the molecular risk factors that may link between the pathogeneses of the two diseases, which is aimed at providing a comprehensive understanding of molecular mechanisms underlying their comorbidity.
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Affiliation(s)
- Chang-Kee Hyun
- School of Life Science, Handong Global University, Pohang 37554, Gyungbuk, Korea
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7
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Raffner Basson A, Gomez-Nguyen A, LaSalla A, Buttó L, Kulpins D, Warner A, Di Martino L, Ponzani G, Osme A, Rodriguez-Palacios A, Cominelli F. Replacing Animal Protein with Soy-Pea Protein in an "American Diet" Controls Murine Crohn Disease-Like Ileitis Regardless of Firmicutes: Bacteroidetes Ratio. J Nutr 2021; 151:579-590. [PMID: 33484150 PMCID: PMC7948210 DOI: 10.1093/jn/nxaa386] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/26/2020] [Accepted: 11/11/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The current nutritional composition of the "American diet" (AD; also known as Western diet) has been linked to the increasing incidence of chronic diseases, including inflammatory bowel disease (IBD), namely Crohn disease (CD). OBJECTIVES This study investigated which of the 3 major macronutrients (protein, fat, carbohydrates) in the AD has the greatest impact on preventing chronic inflammation in experimental IBD mouse models. METHODS We compared 5 rodent diets designed to mirror the 2011-2012 "What We Eat in America" NHANES. Each diet had 1 macronutrient dietary source replaced. The formulated diets were AD, AD-soy-pea (animal protein replaced by soy + pea protein), AD-CHO ("refined carbohydrate" by polysaccharides), AD-fat [redistribution of the ω-6:ω-3 (n-6:n-3) PUFA ratio; ∼10:1 to 1:1], and AD-mix (all 3 "healthier" macronutrients combined). In 3 separate experiments, 8-wk-old germ-free SAMP1/YitFC mice (SAMP) colonized with human gut microbiota ("hGF-SAMP") from CD or healthy donors were fed an AD, an AD-"modified," or laboratory rodent diet for 24 wk. Two subsequent dextran sodium sulfate-colitis experiments in hGF-SAMP (12-wk-old) and specific-pathogen-free (SPF) C57BL/6 (20-wk-old) mice, and a 6-wk feeding trial in 24-wk-old SPF SAMP were performed. Intestinal inflammation, gut metagenomics, and MS profiles were assessed. RESULTS The AD-soy-pea diet resulted in lower histology scores [mean ± SD (56.1% ± 20.7% reduction)] in all feeding trials and IBD mouse models than did other diets (P < 0.05). Compared with the AD, the AD-soy-pea correlated with increased abundance in Lactobacillaceae and Leuconostraceae (1.5-4.7 log2 and 3.0-5.1 log2 difference, respectively), glutamine (6.5 ± 0.8 compared with 3.9 ± 0.3 ng/μg stool, P = 0.0005) and butyric acid (4:0; 3.3 ± 0.5 compared with 2.54 ± 0.4 ng/μg stool, P = 0.006) concentrations, and decreased linoleic acid (18:2n-6; 5.4 ± 0.4 compared with 8.6 ± 0.3 ng/μL plasma, P = 0.01). CONCLUSIONS Replacement of animal protein in an AD by plant-based sources reduced the severity of experimental IBD in all mouse models studied, suggesting that similar, feasible adjustments to the daily human diet could help control/prevent IBD in humans.
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Affiliation(s)
- Abigail Raffner Basson
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Adrian Gomez-Nguyen
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Alexandria LaSalla
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Ludovica Buttó
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Danielle Kulpins
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Alexandra Warner
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Luca Di Martino
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Gina Ponzani
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Abdullah Osme
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Alexander Rodriguez-Palacios
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Fabio Cominelli
- Division of Gastroenterology & Liver Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
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Basson AR, Gomez-Nguyen A, Menghini P, Buttó LF, Di Martino L, Aladyshkina N, Osme A, LaSalla A, Fischer D, Ezeji JC, Erkkila HL, Brennan CJ, Lam M, Rodriguez-Palacios A, Cominelli F. Human Gut Microbiome Transplantation in Ileitis Prone Mice: A Tool for the Functional Characterization of the Microbiota in Inflammatory Bowel Disease Patients. Inflamm Bowel Dis 2020; 26:347-359. [PMID: 31750921 PMCID: PMC7012301 DOI: 10.1093/ibd/izz242] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Inflammatory bowel disease (IBD) is a lifelong digestive disease characterized by periods of severe inflammation and remission. To our knowledge, this is the first study showing a variable effect on ileitis severity from human gut microbiota isolated from IBD donors in remission and that of healthy controls in a mouse model of IBD. METHODS We conducted a series of single-donor intensive and nonintensive fecal microbiota transplantation (FMT) experiments using feces from IBD patients in remission and healthy non-IBD controls (N = 9 donors) in a mouse model of Crohn's disease (CD)-like ileitis that develops ileitis in germ-free (GF) conditions (SAMP1/YitFC; N = 96 mice). RESULTS Engraftment studies demonstrated that the microbiome of IBD in remission could have variable effects on the ileum of CD-prone mice (pro-inflammatory, nonmodulatory, or anti-inflammatory), depending on the human donor. Fecal microbiota transplantation achieved a 95% ± 0.03 genus-level engraftment of human gut taxa in mice, as confirmed at the operational taxonomic unit level. In most donors, microbiome colonization abundance patterns remained consistent over 60 days. Microbiome-based metabolic predictions of GF mice with Crohn's or ileitic-mouse donor microbiota indicate that chronic amino/fatty acid (valine, leucine, isoleucine, histidine; linoleic; P < 1e-15) alterations (and not bacterial virulence markers; P > 0.37) precede severe ileitis in mice, supporting their potential use as predictors/biomarkers in human CD. CONCLUSION The gut microbiome of IBD remission patients is not necessarily innocuous. Characterizing the inflammatory potential of each microbiota in IBD patients using mice may help identify the patients' best anti-inflammatory fecal sample for future use as an anti-inflammatory microbial autograft during disease flare-ups.
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Affiliation(s)
- Abigail R Basson
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Adrian Gomez-Nguyen
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Paola Menghini
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Ludovica F Buttó
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Luca Di Martino
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Natalia Aladyshkina
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Abdullah Osme
- Department of Pathology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Alexandria LaSalla
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Derek Fischer
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Jessica C Ezeji
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Hailey L Erkkila
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Connery J Brennan
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA
| | - Minh Lam
- Division of Gastrointestinal and Liver Disease, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Alexander Rodriguez-Palacios
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA,Division of Gastrointestinal and Liver Disease, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Fabio Cominelli
- Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA,Division of Gastrointestinal and Liver Disease, University Hospitals Cleveland Medical Center, Cleveland, OH, USA,Address correspondence to: Fabio Cominelli, Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA; Division of Gastrointestinal and Liver Disease, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland OH 44106-5066, USA.
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Liu F, Wang TTY, Tang Q, Xue C, Li RW, Wu VCH. Malvidin 3-Glucoside Modulated Gut Microbial Dysbiosis and Global Metabolome Disrupted in a Murine Colitis Model Induced by Dextran Sulfate Sodium. Mol Nutr Food Res 2019; 63:e1900455. [PMID: 31444937 DOI: 10.1002/mnfr.201900455] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/10/2019] [Indexed: 12/25/2022]
Abstract
SCOPE This study aims to elucidate the mechanisms of the anthocyanin malvidin 3-glucoside (MV) in alleviating gut dysbiosis using a murine colitis model induced by dextran sulfate sodium (DSS). METHODS AND RESULTS The effect of MV on the structure and function of the colon microbiome and microbial metabolism is evaluated using 16S rRNA gene sequencing, global metabolomics, and a network algorithm based on the random-matrix theory. MV ingestion improved histopathological scores and increased IL10 expression in the colon mucosa of colitis mice. While DSS has a profound effect on the gut microbiome and significantly decreases both microbial richness and evenness, MV further reduces evenness but promotes microbial interactions and restores the Firmicutes/Bacteroidetes ratio repressed by DSS. Moreover, MV reduces the abundance of pathogenic bacteria, such as Ruminococcus gnavus, in colitis mice and has a strong modulatory effect on microbial co-occurrence patterns and gut metabolites. In addition, MV reverses several key inflammatory mediators, including sphingolipid metabolites, from elevated levels in DSS colitis mice. As a bioactive ingredient, MV exerts its effect on the gut microbiome in a mechanism that differs from the whole blueberry. CONCLUSION MV ingestion ameliorates intestinal inflammation by modulating colon epithelium integrity, gut microbiome, and key inflammatory mediators.
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Affiliation(s)
- Fang Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China.,Produce Safety and Microbiology Research Unit, United States Department of Agriculture, Agriculture Research Service, Albany, CA, 94706, USA
| | - Thomas T Y Wang
- Diet, Genomics, and Immunology Laboratory, Beltsville Human Nutrition Research Center, United States Department of Agriculture, Agriculture Research Service, Beltsville, MD, 20705, USA
| | - Qingjuan Tang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
| | - Robert W Li
- Animal Genomics and Improvement Laboratory, United States Department of Agriculture, Agriculture Research Service, Beltsville, MD, 20705, USA
| | - Vivian C H Wu
- Produce Safety and Microbiology Research Unit, United States Department of Agriculture, Agriculture Research Service, Albany, CA, 94706, USA
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