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Kazmi I, Altamimi ASA, Afzal M, Majami AA, Abbasi FA, Almalki WH, Alzera SI, Kukreti N, Fuloria NK, Fuloria S, Sekar M, Abida. Non-coding RNAs: Emerging biomarkers and therapeutic targets in ulcerative colitis. Pathol Res Pract 2024; 253:155037. [PMID: 38160482 DOI: 10.1016/j.prp.2023.155037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/10/2023] [Accepted: 12/11/2023] [Indexed: 01/03/2024]
Abstract
Ulcerative colitis (UC) is a persistent inflammatory condition affecting the colon's mucosal lining, leading to chronic bowel inflammation. Despite extensive research, the precise molecular mechanisms underlying UC pathogenesis remain elusive. NcRNAs form a category of functional RNA molecules devoid of protein-coding capacity. They have recently surfaced as pivotal modulators of gene expression and integral participants in various pathological processes, particularly those related to inflammatory disorders. The diverse classes of ncRNAs, encompassing miRNAs, circRNAs, and lncRNAs, have been implicated in UC. It highlights their involvement in key UC-related processes, such as immune cell activation, epithelial barrier integrity, and the production of pro-inflammatory mediators. ncRNAs have been identified as potential biomarkers for UC diagnosis and monitoring disease progression, offering promising avenues for personalized medicine. This approach may pave the way for novel, more specific treatments with reduced side effects, addressing the current limitations of conventional therapies. A comprehensive understanding of the interplay between ncRNAs and UC will advance our knowledge of the disease, potentially leading to more effective and personalized treatments for patients suffering from this debilitating condition. This review explores the pivotal role of ncRNAs in the context of UC, shedding light on their possible targets for diagnosis, prognosis, and therapeutic interventions.
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Affiliation(s)
- Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | | | - Muhammad Afzal
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Abdullah A Majami
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Fahad Al Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Sami I Alzera
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Al-Jouf, Saudi Arabia
| | - Neelima Kukreti
- School of Pharmacy, Graphic Era Hill University, Dehradun 248007, India
| | | | - Shivkanya Fuloria
- Faculty of Pharmacy, AIMST University, Bedong 08100, Kedah, Malaysia
| | - Mahendran Sekar
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, Subang Jaya 47500, Selangor, Malaysia
| | - Abida
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Northern Border University, Rafha 91911, Saudi Arabia
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2
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Seethaler B, Lehnert K, Yahiaoui-Doktor M, Basrai M, Vetter W, Kiechle M, Bischoff SC. Omega-3 polyunsaturated fatty acids improve intestinal barrier integrity-albeit to a lesser degree than short-chain fatty acids: an exploratory analysis of the randomized controlled LIBRE trial. Eur J Nutr 2023; 62:2779-2791. [PMID: 37318580 PMCID: PMC10468946 DOI: 10.1007/s00394-023-03172-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 05/04/2023] [Indexed: 06/16/2023]
Abstract
PURPOSE Adherence to the Mediterranean diet is associated with beneficial health effects, including gastrointestinal disorders. Preclinical studies suggest that omega-3 polyunsaturated fatty acids (n-3 PUFAs), found in Mediterranean foods like nuts and fish, improve intestinal barrier integrity. Here, we assessed possible effects of n-3 PUFAs on barrier integrity in a randomized controlled trial. METHODS We studied 68 women from the open-label LIBRE trial (clinicaltrials.gov: NCT02087592) who followed either a Mediterranean diet (intervention group, IG) or a standard diet (control group, CG). Study visits comprised baseline, month 3, and month 12. Barrier integrity was assessed by plasma lipopolysaccharide binding protein (LBP) and fecal zonulin; fatty acids by gas chromatography with mass spectrometry. Median and interquartile ranges are shown. RESULTS Adherence to the Mediterranean diet increased the proportion of the n-3 docosahexaenoic acid (DHA) (IG + 1.5% [0.9;2.5, p < 0.001]/ + 0.3% [- 0.1;0.9, p < 0.050] after 3/12 months; CG + 0.9% [0.5;1.6, p < 0.001]/ ± 0%) and decreased plasma LBP (IG - 0.3 µg/ml [- 0.6;0.1, p < 0.010]/ - 0.3 µg/ml [- 1.1; - 0.1, p < 0.001]; CG - 0.2 µg/ml [- 0.8; - 0.1, p < 0.001]/ ± 0 µg/ml) and fecal zonulin levels (IG - 76 ng/mg [- 164; - 12, p < 0.010]/ - 74 ng/mg [- 197;15, p < 0.001]; CG - 59 ng/mg [- 186;15, p < 0.050]/ + 10 ng/mg [- 117;24, p > 0.050]). Plasma DHA and LBP (R2: 0.14-0.42; all p < 0.070), as well as plasma DHA and fecal zonulin (R2: 0.18-0.48; all p < 0.050) were found to be inversely associated in bi- and multivariate analyses. Further multivariate analyses showed that the effect of DHA on barrier integrity was less pronounced than the effect of fecal short-chain fatty acids on barrier integrity. CONCLUSIONS Our data show that n-3 PUFAs can improve intestinal barrier integrity. TRIAL REGISTRATION NUMBER The trial was registered prospectively at ClinicalTrials.gov (reference: NCT02087592).
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Affiliation(s)
- Benjamin Seethaler
- Institute of Nutritional Medicine, University of Hohenheim, Fruwirthstr. 12, 70593, Stuttgart, Germany
| | - Katja Lehnert
- Institute of Food Chemistry, University of Hohenheim, Stuttgart, Germany
| | - Maryam Yahiaoui-Doktor
- Institute for Medical Informatics, Statistics and Epidemiology (IMISE), University of Leipzig, Leipzig, Germany
| | - Maryam Basrai
- Institute of Nutritional Medicine, University of Hohenheim, Fruwirthstr. 12, 70593, Stuttgart, Germany
| | - Walter Vetter
- Institute of Food Chemistry, University of Hohenheim, Stuttgart, Germany
| | - Marion Kiechle
- Department of Gynecology, Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts der Isar, Technical University Munich and Comprehensive Cancer Center Munich, Munich, Germany
| | - Stephan C Bischoff
- Institute of Nutritional Medicine, University of Hohenheim, Fruwirthstr. 12, 70593, Stuttgart, Germany.
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Finnegan D, Tocmo R, Loscher C. Targeted Application of Functional Foods as Immune Fitness Boosters in the Defense against Viral Infection. Nutrients 2023; 15:3371. [PMID: 37571308 PMCID: PMC10421353 DOI: 10.3390/nu15153371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
In recent times, the emergence of viral infections, including the SARS-CoV-2 virus, the monkeypox virus, and, most recently, the Langya virus, has highlighted the devastating effects of viral infection on human life. There has been significant progress in the development of efficacious vaccines for the prevention and control of viruses; however, the high rates of viral mutation and transmission necessitate the need for novel methods of control, management, and prevention. In recent years, there has been a shift in public awareness on health and wellbeing, with consumers making significant dietary changes to improve their immunity and overall health. This rising health awareness is driving a global increase in the consumption of functional foods. This review delves into the benefits of functional foods as potential natural means to modulate the host immune system to enhance defense against viral infections. We provide an overview of the functional food market in Europe and discuss the benefits of enhancing immune fitness in high-risk groups, including the elderly, those with obesity, and people with underlying chronic conditions. We also discuss the immunomodulatory mechanisms of key functional foods, including dairy proteins and hydrolysates, plant-based functional foods, fermentates, and foods enriched with vitamin D, zinc, and selenium. Our findings reveal four key immunity boosting mechanisms by functional foods, including inhibition of viral proliferation and binding to host cells, modulation of the innate immune response in macrophages and dendritic cells, enhancement of specific immune responses in T cells and B cells, and promotion of the intestinal barrier function. Overall, this review demonstrates that diet-derived nutrients and functional foods show immense potential to boost viral immunity in high-risk individuals and can be an important approach to improving overall immune health.
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Affiliation(s)
| | | | - Christine Loscher
- School of Biotechnology, Dublin City University, D09 DX63 Dublin, Ireland; (D.F.); (R.T.)
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4
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Welboren AC, Van Baal J, Ghaffari MH, Sauerwein H, Renaud JB, Martín-Tereso J, Steele MA, Leal LN. Gastrointestinal permeability and inflammatory status of preweaning dairy calves in response to decreasing the ratio of n-6 to n-3 fatty acid in milk replacer. J Dairy Sci 2023; 106:3662-3679. [PMID: 37002139 DOI: 10.3168/jds.2022-22568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 12/05/2022] [Indexed: 03/31/2023]
Abstract
The ratio of n-6 to n-3 fatty acid (FA) is between 2 and 10 times higher in milk replacer (MR) than in whole milk, which may promote inflammation and compromise the integrity of the intestinal epithelium. To evaluate how decreasing the n-6:n-3 FA ratio of MR affects gastrointestinal (GIT) permeability and inflammatory status, 30 dairy calves (2.8 ± 1.06 d of age; mean ± standard deviation) were randomly assigned to be fed an MR with an n-6:n-3 FA ratio of 40:1 (CON; 29.3% crude fat of DM; n = 15) or 6.5:1 (n-3; 29.1% crude fat of DM; n = 15). Calves were fed 7.0 L/d in 2 meals. Calves were weighed and fecal consistency was analyzed weekly. On d 22, calves were administered Cr-EDTA, lactulose, and d-mannitol to assess GIT permeability. Blood and total urine were sequentially collected for 6 and 24 h, respectively, and analyzed for marker content. Whole blood collected 4 h after the meal was subjected to an ex vivo lipopolysaccharide (LPS) challenge to evaluate cytokine secretion from blood cells. Calves were euthanized on d 25 for collection of intestinal tissue samples. Tissue samples were processed to assess FA composition by gas chromatography, histomorphology by bright-field microscopy, and gene expression of tight junction proteins, lipid metabolism enzymes, and immune molecules by real-time quantitative PCR. Data were analyzed using PROC GLIMMIX in SAS (version 9.4, SAS Institute Inc.). Growth performance and fecal consistency were unaffected. Calves fed MR with a lower ratio of n-6 to n-3 FA had 2-fold higher n-3 FA contents and 2-fold lower ratios of n-6 to n-3 FA in proximal jejunum and ileum tissues. Total urinary recovery (0-24 h relative to marker administration) and plasma concentrations of the markers were unaffected. Expression of TJP1 tended to be higher in proximal jejunum tissue and lower in ileum tissue of n-3 calves. The expression of TLR4 and TNFA tended to be higher and CD14 was higher in ileum tissue of n-3 calves. Plasma concentrations of interleukin-4 were decreased in response to the ex vivo LPS challenge in n-3 calves. Histomorphology and GIT permeability were largely unaffected by treatment. Furthermore, the inclusion of linseed and algae oil may promote inflammation, as suggested by greater concentrations of the acute-phase proteins haptoglobin and serum amyloid A postprandially, demonstrating that fat sources should be evaluated for their suitability for MR formulations. Understanding how MR composition affects dairy calf health may improve nutritional strategies on farm.
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Affiliation(s)
- A C Welboren
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - J Van Baal
- Trouw Nutrition Research and Development, PO Box 299, 3800 AG, Amersfoort, the Netherlands
| | - M H Ghaffari
- Institute of Animal Science, University of Bonn, 53111 Bonn, Germany
| | - H Sauerwein
- Institute of Animal Science, University of Bonn, 53111 Bonn, Germany
| | - J B Renaud
- London Research and Development Centre, Agriculture and Agri-Food Canada, London, ON, Canada, N5V 4T3
| | - J Martín-Tereso
- Trouw Nutrition Research and Development, PO Box 299, 3800 AG, Amersfoort, the Netherlands
| | - M A Steele
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - L N Leal
- Trouw Nutrition Research and Development, PO Box 299, 3800 AG, Amersfoort, the Netherlands.
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Ribaldone DG, Pellicano R, Fagoonee S, Actis GC. Modulation of the gut microbiota: opportunities and regulatory aspects. Minerva Gastroenterol (Torino) 2023; 69:128-140. [PMID: 35179341 DOI: 10.23736/s2724-5985.22.03152-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The human gut is an intensively colonized organ containing microorganisms that can be health-promoting or pathogenic. This feature led to the development of functional foods aiming to fortify the former category at the expense of the latter. Since long, cultured products, including probiotics fortification, have been used for humans as live microbial feed additions. This review presents some of the microbes used as probiotics and discusses how supplementation with probiotics may help initiate and/or restore eubiotic composition of gut microbiota. Additionally, it considers safety and regulatory aspects of probiotics.
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Affiliation(s)
| | | | - Sharmila Fagoonee
- Institute of Biostructures and Bioimaging (CNR) c/o Molecular Biotechnology Center, Turin, Italy
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6
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Parrón-Ballesteros J, Gordo RG, López-Rodríguez JC, Olmo N, Villalba M, Batanero E, Turnay J. Beyond allergic progression: From molecules to microbes as barrier modulators in the gut-lung axis functionality. FRONTIERS IN ALLERGY 2023; 4:1093800. [PMID: 36793545 PMCID: PMC9923236 DOI: 10.3389/falgy.2023.1093800] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/10/2023] [Indexed: 01/31/2023] Open
Abstract
The "epithelial barrier hypothesis" states that a barrier dysfunction can result in allergy development due to tolerance breakdown. This barrier alteration may come from the direct contact of epithelial and immune cells with the allergens, and indirectly, through deleterious effects caused by environmental changes triggered by industrialization, pollution, and changes in the lifestyle. Apart from their protective role, epithelial cells can respond to external factors secreting IL-25 IL-33, and TSLP, provoking the activation of ILC2 cells and a Th2-biased response. Several environmental agents that influence epithelial barrier function, such as allergenic proteases, food additives or certain xenobiotics are reviewed in this paper. In addition, dietary factors that influence the allergenic response in a positive or negative way will be also described here. Finally, we discuss how the gut microbiota, its composition, and microbe-derived metabolites, such as short-chain fatty acids, alter not only the gut but also the integrity of distant epithelial barriers, focusing this review on the gut-lung axis.
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Affiliation(s)
- Jorge Parrón-Ballesteros
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Rubén García Gordo
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Juan Carlos López-Rodríguez
- The Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom,The Francis Crick Institute, London, United Kingdom
| | - Nieves Olmo
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Mayte Villalba
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Eva Batanero
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Javier Turnay
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain,Correspondence: Javier Turnay
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7
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Lê A, Mantel M, Marchix J, Bodinier M, Jan G, Rolli-Derkinderen M. Inflammatory bowel disease therapeutic strategies by modulation of the microbiota: how and when to introduce pre-, pro-, syn-, or postbiotics? Am J Physiol Gastrointest Liver Physiol 2022; 323:G523-G553. [PMID: 36165557 DOI: 10.1152/ajpgi.00002.2022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Inflammatory bowel diseases (IBD), a heterogeneous group of inflammatory conditions that encompass both ulcerative colitis and Crohn's disease, represent a major public health concern. The etiology of IBD is not yet fully understood and no cure is available, with current treatments only showing long-term effectiveness in a minority of patients. A need to increase our knowledge on IBD pathophysiology is growing, to define preventive measures, to improve disease outcome, and to develop new effective and lasting treatments. IBD pathogenesis is sustained by aberrant immune responses, associated with alterations of the intestinal epithelial barrier (IEB), modifications of the enteric nervous system, and changes in microbiota composition. Currently, most of the treatments target the inflammation and the immune system, but holistic approaches targeting lifestyle and diet improvements are emerging. As dysbiosis is involved in IBD pathogenesis, pre-, pro-, syn-, and postbiotics are used/tested to reduce the inflammation or strengthen the IEB. The present review will resume these works, pointing out the stage of life, the duration, and the environmental conditions that should go along with microbiota or microbiota-derived treatments.
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Affiliation(s)
- Amélie Lê
- The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes Université, Institut National pour la Santé et la Recherche Médicale, Nantes, France
| | - Marine Mantel
- The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes Université, Institut National pour la Santé et la Recherche Médicale, Nantes, France
- Unité Mixte de Recherche Science et Technologie du Lait et de l'Oeuf, Agrocampus Ouest, Institut Agro, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Rennes, France
| | - Justine Marchix
- The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes Université, Institut National pour la Santé et la Recherche Médicale, Nantes, France
| | - Marie Bodinier
- Unité de Recherche 1268 Biopolymères Interactions Assemblages, I Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Pays de la Loire, Nantes, France
| | - Gwénaël Jan
- Unité Mixte de Recherche Science et Technologie du Lait et de l'Oeuf, Agrocampus Ouest, Institut Agro, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Rennes, France
| | - Malvyne Rolli-Derkinderen
- The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes Université, Institut National pour la Santé et la Recherche Médicale, Nantes, France
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Xiao K, Yang Y, Zhang Y, Lv Q, Huang F, Wang D, Zhao J, Liu Y. Long-chain PUFA ameliorate enterotoxigenic Escherichia coli-induced intestinal inflammation and cell injury by modulating pyroptosis and necroptosis signaling pathways in porcine intestinal epithelial cells. Br J Nutr 2022; 128:835-850. [PMID: 34915950 DOI: 10.1017/s0007114521005092] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This study was aimed to investigate whether EPA and arachidonic acid (ARA), the representative n-3 or n-6 PUFA, could alleviate enterotoxigenic Escherichia coli (ETEC) K88-induced inflammation and injury of intestinal porcine epithelial cells 1 (IPEC-1) by modulating pyroptosis and necroptosis signalling pathways. IPEC-1 cells were cultured with or without EPA or ARA in the presence or absence of ETEC K88. EPA and ARA reduced ETEC K88 adhesion and endotoxin content in the supernatant. EPA and ARA increased transepithelial electrical resistance, decreased permeability of fluorescein isothiocyanate-labelled dextran, increased membrane protein expression of occludin, ZO-1 and claudin-1 and relieved disturbed distribution of these proteins. EPA and ARA also reduced cell necrosis ratio. EPA or ARA reduced mRNA and concentration of TNF-α, IL-6 and IL-8 and decreased mRNA abundances of intestinal toll-like receptors 4 and its downstream signals. Moreover, EPA and ARA downregulated mRNA expression of nod-like receptor protein 3 (NLRP3), caspase 1 and IL-18 and inhibited protein expression of NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC), gasdermin D and caspase-1. Finally, EPA and ARA reduced mRNA expression of fas-associated death domain protein, caspase 8, receptor-interacting protein kinase (RIP) 1, mixed lineage kinase-like protein (MLKL), phosphoglycerate mutase 5 (PGAM5), motility-related protein 1 (Drp1) and high mobility protein 1 (HMGB1) and inhibited protein expression of phosphorylated-RIP1, p-RIP3, p-MLKL and HMGB1. These data demonstrate that EPA and ARA prevent ETEC K88-induced cell inflammation and injury, which is partly through inhibiting pyroptosis and necroptosis signalling pathways.
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Affiliation(s)
- Kan Xiao
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, 430023, People's Republic of China
| | - Yang Yang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, 430023, People's Republic of China
| | - Yang Zhang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, 430023, People's Republic of China
| | - Qingqing Lv
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, 430023, People's Republic of China
| | - Feifei Huang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, 430023, People's Republic of China
| | - Dan Wang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, 430023, People's Republic of China
| | - Jiangchao Zhao
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR, USA
| | - Yulan Liu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, 430023, People's Republic of China
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Abd-Elmonsif NM, El-Zainy MA, Rabea AA, Fathy Mohamed IA. The Prospective Effect of Cinnamon and Chia on Submandibular Salivary Glands After Ciprofloxacin Administration in Albino Rats (Histological, Histochemical, and Ultrastructural Study). MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2022; 28:1-18. [PMID: 35788256 DOI: 10.1017/s1431927622012119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ciprofloxacin (CPFX®) is potent fluoroquinolone but has severe side effects. Cinnamon (CIN) and chia seeds are potent antioxidants. The current work aimed to compare the effect of CIN extract and chia seeds on CPFX®-treated submandibular salivary glands (SMGs). Thirty-two male albino rats were divided into four groups: Group 1: received saline. Group 2: received CPFX®. Group 3: received CIN extract after 4 h of CPFX® administration. Group 4: received ground chia seeds after 4 h of CPFX® administration. After 10 days, histological, histochemical, and ultrastructural examinations were done. Different examinations illustrated normal features of SMG in Groups 1 and 3. Group 2 showed degenerative signs. Group 4 showed normal features in some areas. Statistical results illustrated that Group 2 had highest mean vacuolation area%. Highest mean of PAS optical density (OD) was for Group 2. Concerning mercuric bromophenol blue stain OD; Group 1 showed highest mean OD. CPFX® has the deteriorative effect on SMG structure and ultrastructure. It leads to increased levels of glycosaminoglycans (GAGs) and decreased levels of total proteins. CIN extract showed more ameliorative effect compared to chia seeds.
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Affiliation(s)
| | | | - Amany A Rabea
- Faculty of Oral and Dental Medicine, Future University in Egypt, Cairo, Egypt
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10
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Xu AA, Kennedy LK, Hoffman K, White DL, Kanwal F, El-Serag HB, Petrosino JF, Jiao L. Dietary Fatty Acid Intake and the Colonic Gut Microbiota in Humans. Nutrients 2022; 14:2722. [PMID: 35807903 PMCID: PMC9268849 DOI: 10.3390/nu14132722] [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] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/19/2022] [Accepted: 06/28/2022] [Indexed: 11/16/2022] Open
Abstract
A high-fat diet has been associated with systemic diseases in humans and alterations in gut microbiota in animal studies. However, the influence of dietary fatty acid intake on gut microbiota in humans has not been well studied. In this cross-sectional study, we examined the association between intake of total fatty acids (TFAs), saturated fatty acids (SFAs), trans fatty acids (TrFAs), monounsaturated fatty acids (MUFAs), polyunsaturated fatty acids (PUFAs), n3-FAs, and n6-FAs, and the community composition and structure of the adherent colonic gut microbiota. We obtained 97 colonic biopsies from 34 participants with endoscopically normal colons. Microbial DNA was used to sequence the 16S rRNA V4 region. The DADA2 and SILVA database were used for amplicon sequence variant assignment. Dietary data were collected using the Block food frequency questionnaire. The biodiversity and the relative abundance of the bacterial taxa by higher vs. lower fat intake were compared using the Mann−Whitney test followed by multivariable negative binomial regression model. False discovery rate−adjusted p-values (q value) < 0.05 indicated statistical significance. The beta diversity of gut bacteria differed significantly by intake of all types of fatty acids. The relative abundance of Sutterella was significantly higher with higher intake of TFAs, MUFAs, PUFAs, and n6-FAs. The relative abundance of Tyzzerella and Fusobacterium was significantly higher with higher intake of SFAs. Tyzzerella was also higher with higher intake of TrFA. These observations were confirmed by multivariate analyses. Dietary fat intake was associated with bacterial composition and structure. Sutterella, Fusobacterium, and Tyzzerella were associated with fatty acid intake.
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Affiliation(s)
- Anthony A. Xu
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; (A.A.X.); (L.K.K.); (D.L.W.); (F.K.); (H.B.E.-S.)
| | - Luke K. Kennedy
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; (A.A.X.); (L.K.K.); (D.L.W.); (F.K.); (H.B.E.-S.)
| | - Kristi Hoffman
- The Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA; (K.H.); (J.F.P.)
| | - Donna L. White
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; (A.A.X.); (L.K.K.); (D.L.W.); (F.K.); (H.B.E.-S.)
- Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey VA Medical Center, Houston, TX 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX 77030, USA
| | - Fasiha Kanwal
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; (A.A.X.); (L.K.K.); (D.L.W.); (F.K.); (H.B.E.-S.)
- Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey VA Medical Center, Houston, TX 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX 77030, USA
- Section of Gastroenterology, Michael E. DeBakey VA Medical Center, Houston, TX 77030, USA
| | - Hashem B. El-Serag
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; (A.A.X.); (L.K.K.); (D.L.W.); (F.K.); (H.B.E.-S.)
- Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey VA Medical Center, Houston, TX 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX 77030, USA
- Section of Gastroenterology, Michael E. DeBakey VA Medical Center, Houston, TX 77030, USA
| | - Joseph F. Petrosino
- The Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA; (K.H.); (J.F.P.)
| | - Li Jiao
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; (A.A.X.); (L.K.K.); (D.L.W.); (F.K.); (H.B.E.-S.)
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11
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Hua Y, Shen J, Fan R, Xiao R, Ma W. High-fat diets containing different types of fatty acids modulate gut-brain axis in obese mice. Nutr Metab (Lond) 2022; 19:40. [PMID: 35739547 PMCID: PMC9219185 DOI: 10.1186/s12986-022-00675-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 05/17/2022] [Indexed: 11/10/2022] Open
Abstract
Background Excessive consumption of high-fat diets is associated with disordered metabolic responses, which may lead to chronic diseases. High-fat diets containing different types of fatty acids lead to distinct alterations in metabolic responses of gut-brain axis. Methods In our study, normal male C57BL/6J mice were fed to multiple high fatty acid diets (long-chain and medium-chain saturated fatty acid, LCSFA and MCSFA group; n-3 and n-6 polyunsaturated fatty acid, n-3 and n-6 PUFA group; monounsaturated fatty acid, MUFA group; trans fatty acid, TFA group) and a basic diet (control, CON group) for 19 weeks. To investigate the effects of high-fat diets on metabolic responses of gut-brain axis in obese mice, blood lipids were detected by fast gas chromatography, and related proteins in brain and intestine were detected using Western blotting, ELISA, and immunochemistry analysis. Results All high-fat diets regardless of their fatty acid composition induced obesity, lipid disorders, intestinal barrier dysfunction, and changes in gut-brain axis related factors except basal diet in mice. For example, the protein expression of zonula occludens-1 (ZO-1) in ileum in the n-3 PUFA group was higher than that in the MCSFA group (P < 0.05). The expressions of insulin in hippocampus and leptin in ileum in the MCSFA group significantly increased, compared with other groups (all Ps < 0.05). Conclusion The high MCSFA diet had the most effect on metabolic disorders in gut-brain axis, but the high n-3 PUFA diet had the least effect on changes in metabolism.
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Affiliation(s)
- Yinan Hua
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, No.10 Xitoutiao, You An Men Wai, Beijing, 100069, People's Republic of China
| | - Jingyi Shen
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, No.10 Xitoutiao, You An Men Wai, Beijing, 100069, People's Republic of China
| | - Rong Fan
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, No.10 Xitoutiao, You An Men Wai, Beijing, 100069, People's Republic of China
| | - Rong Xiao
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, No.10 Xitoutiao, You An Men Wai, Beijing, 100069, People's Republic of China.
| | - Weiwei Ma
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, No.10 Xitoutiao, You An Men Wai, Beijing, 100069, People's Republic of China.
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12
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Wells JM, Gao Y, de Groot N, Vonk MM, Ulfman L, van Neerven RJJ. Babies, Bugs, and Barriers: Dietary Modulation of Intestinal Barrier Function in Early Life. Annu Rev Nutr 2022; 42:165-200. [PMID: 35697048 DOI: 10.1146/annurev-nutr-122221-103916] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The intestinal barrier is essential in early life to prevent infection, inflammation, and food allergies. It consists of microbiota, a mucus layer, an epithelial layer, and the immune system. Microbial metabolites, the mucus, antimicrobial peptides, and secretory immunoglobulin A (sIgA) protect the intestinal mucosa against infection. The complex interplay between these functionalities of the intestinal barrier is crucial in early life by supporting homeostasis, development of the intestinal immune system, and long-term gut health. Exclusive breastfeeding is highly recommended during the first 6 months. When breastfeeding is not possible, milk-based infant formulas are the only safe alternative. Breast milk contains many bioactive components that help to establish the intestinal microbiota and influence the development of the intestinal epithelium and the immune system. Importantly, breastfeeding lowers the risk for intestinal and respiratory tract infections. Here we review all aspects of intestinal barrier function and the nutritional components that impact its functionality in early life, such as micronutrients, bioactive milk proteins, milk lipids, and human milk oligosaccharides. These components are present in breast milk and can be added to milk-based infant formulas to support gut health and immunity. Expected final online publication date for the Annual Review of Nutrition, Volume 42 is August 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Jerry M Wells
- Host Microbe Interactomics, Wageningen University and Research, Wageningen, The Netherlands
| | - Yifan Gao
- Cell Biology and Immunology, Wageningen University and Research, Wageningen, The Netherlands
| | | | | | | | - R J Joost van Neerven
- Cell Biology and Immunology, Wageningen University and Research, Wageningen, The Netherlands.,FrieslandCampina, Amersfoort, The Netherlands;
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13
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Li E, Horn N, Ajuwon KM. EPA and DHA inhibit endocytosis of claudin-4 and protect against deoxynivalenol-induced intestinal barrier dysfunction through PPARγ dependent and independent pathways in jejunal IPEC-J2 cells. Food Res Int 2022; 157:111420. [DOI: 10.1016/j.foodres.2022.111420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/04/2022] [Accepted: 05/24/2022] [Indexed: 11/17/2022]
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14
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Sundell K, Berge GM, Ruyter B, Sundh H. Low Omega-3 Levels in the Diet Disturbs Intestinal Barrier and Transporting Functions of Atlantic Salmon Freshwater and Seawater Smolts. Front Physiol 2022; 13:883621. [PMID: 35574453 PMCID: PMC9095827 DOI: 10.3389/fphys.2022.883621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/08/2022] [Indexed: 11/30/2022] Open
Abstract
Due to a limited access to marine raw materials from capture fisheries, Atlantic salmon feeds are currently based on mainly plant ingredients (75%) while only 25% come from traditional marine ingredients including marine fish meal and fish oil. Thus, current feeds contain less of the essential omega-3 fatty acids. The aim of the study was to assess the impact of different omega-3 levels in fish feed on intestinal barrier and transporting functions of Atlantic salmon freshwater and seawater smolts. Atlantic salmon were fed three levels of omega-3 (2, 1 and 0.5%) and fish performance was followed through smoltification and the subsequent seawater acclimation. Intestinal barrier and transporting functions were assessed using Ussing chamber methodology and combined with transcript analysis of tight junction related proteins and ion transporters. A linear decrease in growth was observed with decreasing omega-3 levels. Low (0.5%) inclusion of omega-3 impaired the barrier function of the proximal intestine compared to 2% inclusion. Further, low levels of omega-3 decrease the transepithelial electrical potential across the epithelium indicating disturbed ion transport. It can be concluded that low dietary levels of omega-3 impair somatic growth and intestinal function of Atlantic salmon.
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Affiliation(s)
- Kristina Sundell
- Swedish Mariculture Research Center, Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Gerd Marit Berge
- Norwegian Institute of Food, Fisheries and Aquaculture Research (Nofima), Nofima, Sjølsengen, Sunndalsøra, Norway
| | - Bente Ruyter
- Norwegian Institute of Food, Fisheries and Aquaculture Research (Nofima), Nofima, Sjølsengen, Sunndalsøra, Norway
- Nofima, Ås, Norway
| | - Henrik Sundh
- Swedish Mariculture Research Center, Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- *Correspondence: Henrik Sundh,
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15
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Sundaram TS, Giromini C, Rebucci R, Pistl J, Bhide M, Baldi A. Role of omega-3 polyunsaturated fatty acids, citrus pectin, and milk-derived exosomes on intestinal barrier integrity and immunity in animals. J Anim Sci Biotechnol 2022; 13:40. [PMID: 35399093 PMCID: PMC8996583 DOI: 10.1186/s40104-022-00690-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 02/07/2022] [Indexed: 11/10/2022] Open
Abstract
The gastrointestinal tract of livestock and poultry is prone to challenge by feedborne antigens, pathogens, and other stress factors in the farm environment. Excessive physiological inflammation and oxidative stress that arises firstly disrupts the intestinal epithelial barrier followed by other components of the gastrointestinal tract. In the present review, the interrelationship between intestinal barrier inflammation and oxidative stress that contributes to the pathogenesis of inflammatory bowel disease was described. Further, the role of naturally existing immunomodulatory nutrients such as the omega-3 polyunsaturated fatty acids, citrus pectin, and milk-derived exosomes in preventing intestinal barrier inflammation was discussed. Based on the existing evidence, the possible molecular mechanism of these bioactive nutrients in the intestinal barrier was outlined for application in animal diets.
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Affiliation(s)
- Tamil Selvi Sundaram
- Department of Veterinary Science for Health, Animal Production and Food Safety, University of Milan, Via Trentacoste 2, 20134, Milan, Italy.
- University of Veterinary Medicine and Pharmacy in Košice, Komenského 68/73, 04181, Košice, Slovakia.
| | - Carlotta Giromini
- Department of Veterinary Science for Health, Animal Production and Food Safety, University of Milan, Via Trentacoste 2, 20134, Milan, Italy
| | - Raffaella Rebucci
- Department of Veterinary Science for Health, Animal Production and Food Safety, University of Milan, Via Trentacoste 2, 20134, Milan, Italy
| | - Juraj Pistl
- University of Veterinary Medicine and Pharmacy in Košice, Komenského 68/73, 04181, Košice, Slovakia
| | - Mangesh Bhide
- University of Veterinary Medicine and Pharmacy in Košice, Komenského 68/73, 04181, Košice, Slovakia
| | - Antonella Baldi
- Department of Veterinary Science for Health, Animal Production and Food Safety, University of Milan, Via Trentacoste 2, 20134, Milan, Italy
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16
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Supplementation with milk fat globule membrane from early life reduces maternal separation-induced visceral pain independent of enteric nervous system or intestinal permeability changes in the rat. Neuropharmacology 2022; 210:109026. [DOI: 10.1016/j.neuropharm.2022.109026] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 01/23/2022] [Accepted: 03/06/2022] [Indexed: 12/19/2022]
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17
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Dietary fatty acids affect learning and memory ability via regulating inflammatory factors in obese mice. J Nutr Biochem 2022; 103:108959. [PMID: 35158028 DOI: 10.1016/j.jnutbio.2022.108959] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 01/10/2022] [Accepted: 01/19/2022] [Indexed: 12/17/2022]
Abstract
OBJECTIVE High-fat diets are linked to obesity, contributing to the alterations in inflammatory signaling pathways, which is associated with cognitive function. We aim to investigate the mechanisms by which various different types of dietary fatty acids affecting cognitive function in obese mice through the gut/brain axis-inflammatory signaling pathway. METHODS AND RESULTS Eight-week-old male C57BL/6 mice were fed with basal diet (control group), lard high-fat diet (containing long-chain saturated fatty acid (LCSFA group)), coconut oil high-fat diet (containing medium-chain saturated fatty acid (MCSFA group)), linseed oil high-fat diet (containing n-3 polyunsaturated fatty acid (n-3 PUFA group)), soybean oil high-fat diet (containing n-6 polyunsaturated fatty acid (n-6 PUFA group)), olive oil high-fat diet (containing monounsaturated fatty acid (MUFA group)) and 8% hydrogenated soybean oil high-fat diet (containing trans fatty acid (TFA group)) respectively for 16 weeks. Our results revealed that the mean escape latency was significantly prolonged in LCSFA group, and the latency to cross the platform location of n-6 PUFA and TFA groups were increased significantly. The differences of inflammatory markers and toll-like receptor-myeloid differentiation factor-88-nuclear factor kappa-B (TLR-MyD88-NF-κB) inflammatory signaling pathway expressions among all groups reached statistical significances. CONCLUSION Compared to basal diet, high-fat diets enriched in LCSFA, MCSFA, n-6 PUFA, MUFA, and TFA might exert detrimental effects on cognitive function in obese mice via regulating the inflammatory markers and inflammatory signaling pathway in brain and intestine. High-fat diet enriched in n-3 PUFA might exhibit different effect on modulating inflammatory responses in different tissues and might benefit to cognitive function.
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18
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Hou Y, Wang SF, Zhou K, Dai SX. Comparison and recommendation of dietary patterns based on nutrients for Eastern and Western patients with inflammatory bowel disease. Front Nutr 2022; 9:1066252. [PMID: 36817063 PMCID: PMC9928567 DOI: 10.3389/fnut.2022.1066252] [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: 10/10/2022] [Accepted: 12/28/2022] [Indexed: 01/19/2023] Open
Abstract
Inflammatory bowel disease (IBD), a non-specific chronic idiopathic inflammatory condition of the digestive system, requires lifelong treatment in which drugs are the mainstay, along with surgery when necessary. In adjuvant therapies, the diet is considered to be an essential, controllable, and economical component. However, the majority of recent nutrition research has focused on the general effects of nutrients on IBD, with little attention given to the advantages and negative aspects of individual foods and dietary combinations. To cover these shortcomings, we surveyed the benefits and drawbacks of typical foods and their chemical compositions on intestinal pathophysiology by comparing nutrients existing in the foods in Eastern and Western countries. Moreover, for Eastern and Western patients with IBD, we innovatively propose a 3-step dietary recommendation based on modified customary eating habits, including lowering the triggering foods, modifying dietary advice to control disease progression, and improving surgery prognosis.
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Affiliation(s)
- Yue Hou
- Department of Gastroenterology, (Guangdong Provincial Geriatrics Institute), National Key Clinical Specialty, Guangdong Provincial People’s Hospital, (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Sai-Feng Wang
- Department of Gastroenterology, (Guangdong Provincial Geriatrics Institute), National Key Clinical Specialty, Guangdong Provincial People’s Hospital, (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Ke Zhou
- Department of Obstetrics and Gynecology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Shi-Xue Dai
- Department of Gastroenterology, (Guangdong Provincial Geriatrics Institute), National Key Clinical Specialty, Guangdong Provincial People’s Hospital, (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
- Department of Gastroenterology, Geriatric Center, National Regional Medical Center, Ganzhou Hospital Affiliated to Guangdong Provincial People’s Hospital, (Guangdong Academy of Medical Sciences), Southern Medical University, Ganzhou, Jiangxi, China
- *Correspondence: Shi-Xue Dai,
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19
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Portincasa P, Bonfrate L, Khalil M, Angelis MD, Calabrese FM, D’Amato M, Wang DQH, Di Ciaula A. Intestinal Barrier and Permeability in Health, Obesity and NAFLD. Biomedicines 2021; 10:83. [PMID: 35052763 PMCID: PMC8773010 DOI: 10.3390/biomedicines10010083] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/20/2021] [Accepted: 12/28/2021] [Indexed: 02/07/2023] Open
Abstract
The largest surface of the human body exposed to the external environment is the gut. At this level, the intestinal barrier includes luminal microbes, the mucin layer, gastrointestinal motility and secretion, enterocytes, immune cells, gut vascular barrier, and liver barrier. A healthy intestinal barrier is characterized by the selective permeability of nutrients, metabolites, water, and bacterial products, and processes are governed by cellular, neural, immune, and hormonal factors. Disrupted gut permeability (leaky gut syndrome) can represent a predisposing or aggravating condition in obesity and the metabolically associated liver steatosis (nonalcoholic fatty liver disease, NAFLD). In what follows, we describe the morphological-functional features of the intestinal barrier, the role of major modifiers of the intestinal barrier, and discuss the recent evidence pointing to the key role of intestinal permeability in obesity/NAFLD.
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Affiliation(s)
- Piero Portincasa
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (L.B.); (M.K.); (A.D.C.)
| | - Leonilde Bonfrate
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (L.B.); (M.K.); (A.D.C.)
| | - Mohamad Khalil
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (L.B.); (M.K.); (A.D.C.)
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy; (M.D.A.); (F.M.C.)
| | - Maria De Angelis
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy; (M.D.A.); (F.M.C.)
| | - Francesco Maria Calabrese
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy; (M.D.A.); (F.M.C.)
| | - Mauro D’Amato
- Gastrointestinal Genetics Lab, CIC bioGUNE-BRTA, 48160 Derio, Spain;
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - David Q.-H. Wang
- Department of Medicine and Genetics, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, New York, NY 10461, USA;
| | - Agostino Di Ciaula
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (L.B.); (M.K.); (A.D.C.)
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20
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Tremblay A, Simard M, Morin S, Pouliot R. Docosahexaenoic Acid Modulates Paracellular Absorption of Testosterone and Claudin-1 Expression in a Tissue-Engineered Skin Model. Int J Mol Sci 2021; 22:13091. [PMID: 34884896 PMCID: PMC8658185 DOI: 10.3390/ijms222313091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/24/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022] Open
Abstract
Healthy skin moLEdels produced by tissue-engineering often present a suboptimal skin barrier function as compared with normal human skin. Moreover, skin substitutes reconstructed according to the self-assembly method were found to be deficient in polyunsaturated fatty acids (PUFAs). Therefore, in this study, we investigated the effects of a supplementation of the culture media with docosahexaenoic acid (DHA) on the barrier function of skin substitutes. To this end, 10 μM DHA-supplemented skin substitutes were produced (n = 3), analyzed, and compared with controls (substitutes without supplementation). A Franz cell diffusion system, followed by ultra-performance liquid chromatography, was used to perform a skin permeability to testosterone assay. We then used gas chromatography to quantify the PUFAs found in the epidermal phospholipid fraction of the skin substitutes, which showed successful DHA incorporation. The permeability to testosterone was decreased following DHA supplementation and the lipid profile was improved. Differences in the expression of the tight junction (TJ) proteins claudin-1, claudin-4, occludin, and TJ protein-1 were observed, principally a significant increase in claudin-1 expression, which was furthermore confirmed by Western blot analyses. In conclusion, these results confirm that the DHA supplementation of cell culture media modulates different aspects of skin barrier function in vitro and reflects the importance of n-3 PUFAs regarding the lipid metabolism in keratinocytes.
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Affiliation(s)
- Andréa Tremblay
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada; (A.T.); (M.S.); (S.M.)
- Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1J 1Z4, Canada
- Faculté de Pharmacie de l’Université Laval, Québec, QC G1V 0A6, Canada
| | - Mélissa Simard
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada; (A.T.); (M.S.); (S.M.)
- Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1J 1Z4, Canada
- Faculté de Pharmacie de l’Université Laval, Québec, QC G1V 0A6, Canada
| | - Sophie Morin
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada; (A.T.); (M.S.); (S.M.)
- Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1J 1Z4, Canada
- Faculté de Pharmacie de l’Université Laval, Québec, QC G1V 0A6, Canada
| | - Roxane Pouliot
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Québec, QC G1J 1Z4, Canada; (A.T.); (M.S.); (S.M.)
- Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1J 1Z4, Canada
- Faculté de Pharmacie de l’Université Laval, Québec, QC G1V 0A6, Canada
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Aresta A, De Santis S, Carocci A, Barbarossa A, Ragusa A, De Vietro N, Clodoveo ML, Corbo F, Zambonin C. Determination of Commercial Animal and Vegetable Milks' Lipid Profile and Its Correlation with Cell Viability and Antioxidant Activity on Human Intestinal Caco-2 Cells. Molecules 2021; 26:5645. [PMID: 34577116 PMCID: PMC8465430 DOI: 10.3390/molecules26185645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 12/29/2022] Open
Abstract
Lipids from milk are important nutritional components, although their health effects, especially for animal milks, are still questioned. Four types of commercial milks, two semi-skimmed animal milks (bovine and goat) and two vegetable ones (soy and rice), along with their total and free lipid fractions recovered by sequential centrifugation or by ethyl acetate extraction, respectively, have been analyzed. A higher antioxidant ability, reported as Trolox equivalent antioxidant capacity, was found for all raw milks compared to that of rice. This trend was confirmed, except for soy milk, as ROS reduction in Caco-2 cells. The free lipid fraction was shown to have the highest antioxidant potential in both chemical and biological tests. Moreover, goat and soy raw milks positively regulated Caco-2 cell viability after an inflammatory stimulus. This effect was lost when their total lipid fraction was tested. Finally, only the free lipid fraction from rice milk preserved the Caco-2 viability after LPS stimulation. Our data demonstrated that the lipid profile of each milk, characterized by GC-MS analysis, could contribute to dictate its biological effects, and, although additional in vitro and in vivo studies are needed, they could support the literature re-evaluating the health effects of animal-based versus plant-based milks in the intestinal cellular model.
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Affiliation(s)
- Antonella Aresta
- Department of Chemistry, Aldo Moro University of Bari, 70126 Bari, Italy; (A.A.); (N.D.V.); (C.Z.)
| | - Stefania De Santis
- Department of Pharmacy-Pharmaceutical Science, Aldo Moro University of Bari, 70126 Bari, Italy; (A.B.); (F.C.)
| | - Alessia Carocci
- Department of Pharmacy-Pharmaceutical Science, Aldo Moro University of Bari, 70126 Bari, Italy; (A.B.); (F.C.)
| | - Alexia Barbarossa
- Department of Pharmacy-Pharmaceutical Science, Aldo Moro University of Bari, 70126 Bari, Italy; (A.B.); (F.C.)
| | - Andrea Ragusa
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy;
| | - Nicoletta De Vietro
- Department of Chemistry, Aldo Moro University of Bari, 70126 Bari, Italy; (A.A.); (N.D.V.); (C.Z.)
| | - Maria Lisa Clodoveo
- Department of Interdisciplinary Medicine, Aldo Moro University of Bari, 70126 Bari, Italy;
| | - Filomena Corbo
- Department of Pharmacy-Pharmaceutical Science, Aldo Moro University of Bari, 70126 Bari, Italy; (A.B.); (F.C.)
| | - Carlo Zambonin
- Department of Chemistry, Aldo Moro University of Bari, 70126 Bari, Italy; (A.A.); (N.D.V.); (C.Z.)
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22
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Veselinović A, Petrović S, Žikić V, Subotić M, Jakovljević V, Jeremić N, Vučić V. Neuroinflammation in Autism and Supplementation Based on Omega-3 Polyunsaturated Fatty Acids: A Narrative Review. ACTA ACUST UNITED AC 2021; 57:medicina57090893. [PMID: 34577816 PMCID: PMC8464922 DOI: 10.3390/medicina57090893] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 01/01/2023]
Abstract
Autism Spectrum Disorder (ASD) is a complex neurodevelopmental disorder characterized by persistent deficits in social communication and social interaction across multiple contexts and restricted, repetitive patterns of behavior, interests and activities. The maternal status of polyunsaturated fatty acids (PUFA) regulates microglial activity and neuroinflammatory pathways during a child's brain development. In children with ASD, the metabolism of PUFA is thought to be deficient or abnormal, leading to increased production of proinflammatory cytokines, increased oxidative stress and an imbalance in the formation and action of neurotransmitters. In addition, nutritional deficits in omega-3 PUFA may affect gut microbiota and contribute to ASD by the gut-brain axis. The aim of this study was to review the possible role of neuroinflammation in ASD development and the effect of omega-3 PUFA supplementation in children with ASD. Due to a wide heterogeneity across RCTs, no definitive conclusion about omega-3 PUFA effects in ASD can be drawn. Supplementation with PUFA could be considered as one of the aspects in regulating the biological status of the organism and could provide added value to standard medical and psychological interventions for reducing behavioral deficits.
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Affiliation(s)
- Aleksandra Veselinović
- Cognitive Neuroscience Department, Research and Development Institute “Life Activities Advancement Centre”, 11000 Belgrade, Serbia; (V.Ž.); (M.S.)
- Department of Speech, Language and Hearing Sciences, Institute for Experimental Phonetics and Speech Pathology, 11000 Belgrade, Serbia
- Correspondence: ; Tel.: +381-11-3208-552; Fax: +381-11-2624-168
| | - Snježana Petrović
- Group for Nutritional Biochemistry and Dietology, Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, 11000 Belgrade, Serbia; (S.P.); (V.V.)
| | - Vladica Žikić
- Cognitive Neuroscience Department, Research and Development Institute “Life Activities Advancement Centre”, 11000 Belgrade, Serbia; (V.Ž.); (M.S.)
- Department of Speech, Language and Hearing Sciences, Institute for Experimental Phonetics and Speech Pathology, 11000 Belgrade, Serbia
| | - Miško Subotić
- Cognitive Neuroscience Department, Research and Development Institute “Life Activities Advancement Centre”, 11000 Belgrade, Serbia; (V.Ž.); (M.S.)
| | - Vladimir Jakovljević
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia;
- Department of Human Pathology, 1st Moscow State Medical University IM Sechenov, 119991 Moscow, Russia
| | - Nevena Jeremić
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia;
| | - Vesna Vučić
- Group for Nutritional Biochemistry and Dietology, Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of Republic of Serbia, 11000 Belgrade, Serbia; (S.P.); (V.V.)
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Usuda H, Okamoto T, Wada K. Leaky Gut: Effect of Dietary Fiber and Fats on Microbiome and Intestinal Barrier. Int J Mol Sci 2021; 22:ijms22147613. [PMID: 34299233 PMCID: PMC8305009 DOI: 10.3390/ijms22147613] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/10/2021] [Accepted: 07/13/2021] [Indexed: 12/12/2022] Open
Abstract
Intestinal tract is the boundary that prevents harmful molecules from invading into the mucosal tissue, followed by systemic circulation. Intestinal permeability is an index for intestinal barrier integrity. Intestinal permeability has been shown to increase in various diseases-not only intestinal inflammatory diseases, but also systemic diseases, including diabetes, chronic kidney dysfunction, cancer, and cardiovascular diseases. Chronic increase of intestinal permeability is termed 'leaky gut' which is observed in the patients and animal models of these diseases. This state often correlates with the disease state. In addition, recent studies have revealed that gut microbiota affects intestinal and systemic heath conditions via their metabolite, especially short-chain fatty acids and lipopolysaccharides, which can trigger leaky gut. The etiology of leaky gut is still unknown; however, recent studies have uncovered exogenous factors that can modulate intestinal permeability. Nutrients are closely related to intestinal health and permeability that are actively investigated as a hot topic of scientific research. Here, we will review the effect of nutrients on intestinal permeability and microbiome for a better understanding of leaky gut and a possible mechanism of increase in intestinal permeability.
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Affiliation(s)
- Haruki Usuda
- Correspondence: (H.U.); (T.O.); Tel.: +81-853-20-3067 (H.U.)
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24
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Sun X, Cui Y, Su Y, Gao Z, Diao X, Li J, Zhu X, Li D, Li Z, Wang C, Shi Y. Dietary Fiber Ameliorates Lipopolysaccharide-Induced Intestinal Barrier Function Damage in Piglets by Modulation of Intestinal Microbiome. mSystems 2021; 6:e01374-20. [PMID: 33824201 PMCID: PMC8547013 DOI: 10.1128/msystems.01374-20] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 03/10/2021] [Indexed: 12/24/2022] Open
Abstract
Weaning of piglets is accompanied by intestinal inflammation, impaired intestinal barrier function, and intestinal microflora disorder. Regulating intestinal microflora structure can directly or indirectly affect intestinal health and host growth and development. However, whether dietary fiber (DF) affects the inflammatory response and barrier function by affecting the intestinal microflora and its metabolites is unclear. In this study, we investigated the role of intestinal microflora in relieving immune stress and maintaining homeostasis using piglets with lipopolysaccharide (LPS)-induced intestinal injury as a model. DF improved intestinal morphology and barrier function, inhibited the expression of inflammatory signal pathways (Toll-like receptor 2 [TLR2], TLR4, and NF-κB) and proinflammatory cytokines (interleukin 1β [IL-1β], IL-6, and tumor necrosis factor alpha [TNF-α]), and upregulated the expression of barrier-related genes (encoding claudin-1, occludin, and ZO-1). The contents of proinflammatory cytokines (IL-1β, IL-6, and TNF-α) and the activity of diamine oxidase in plasma were decreased. Meanwhile, DF had a strong effect on the composition and function of intestinal microflora at different taxonomic levels, the relative abundances of cellulolytic bacteria and anti-inflammatory bacteria were increased, and the concentrations of propionate, butyrate, and total short-chain fatty acids (SCFAs) in intestinal contents were increased. In addition, the correlation analysis also revealed the potential relationship between metabolites and certain intestinal microflora, as well as the relationship between metabolites and intestinal morphology, intestinal gene expression, and plasma cytokine levels. These results indicate that DF improves intestinal barrier function, in part, by altering intestinal microbiota composition and increasing the synthesis of SCFAs, which subsequently alleviate local and systemic inflammation.IMPORTANCE Adding DF to the diet of LPS-challenged piglets alleviated intestinal and systemic inflammation, improved intestinal barrier function, and ultimately alleviated the growth retardation of piglets. In addition, the addition of DF significantly increased the relative abundance of SCFA-producing bacteria and the production of SCFAs. We believe that the improvement of growth performance of piglets with LPS-induced injury can be attributed to the beneficial effects of DF on intestinal microflora and SCFAs, which reduced the inflammatory response in piglets, improving intestinal barrier function and enhancing body health. These research results provide a theoretical basis and guidance for the use of specific fiber sources in the diet to improve intestinal health and growth performance of piglets and thus alleviate weaning stress. Our data also provide insights for studying the role of DF in regulating gastrointestinal function in human infants.
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Affiliation(s)
- Xiao Sun
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Yalei Cui
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, China
| | - Yingying Su
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Zimin Gao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Xinying Diao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Ju Li
- Henan Yinfa Animal Husbandry Co., Xinzheng, China
| | - Xiaoyan Zhu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, China
| | - Defeng Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, China
| | - Zhentian Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, China
| | - Chengzhang Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, China
| | - Yinghua Shi
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, China
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25
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Lipid Composition, Digestion, and Absorption Differences among Neonatal Feeding Strategies: Potential Implications for Intestinal Inflammation in Preterm Infants. Nutrients 2021; 13:nu13020550. [PMID: 33567518 PMCID: PMC7914900 DOI: 10.3390/nu13020550] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 12/18/2022] Open
Abstract
Necrotizing enterocolitis (NEC) is a significant cause of morbidity and mortality in the neonatal population. Formula feeding is among the many risk factors for developing the condition, a practice often required in the cohort most often afflicted with NEC, preterm infants. While the virtues of many bioactive components of breast milk have been extolled, the ability to digest and assimilate the nutritional components of breast milk is often overlooked. The structure of formula differs from that of breast milk, both in lipid composition and chemical configuration. In addition, formula lacks a critical digestive enzyme produced by the mammary gland, bile salt-stimulated lipase (BSSL). The gastrointestinal system of premature infants is often incapable of secreting sufficient pancreatic enzymes for fat digestion, and pasteurization of donor milk (DM) has been shown to inactivate BSSL, among other important compounds. Incompletely digested lipids may oxidize and accumulate in the distal gut. These lipid fragments are thought to induce intestinal inflammation in the neonate, potentially hastening the development of diseases such as NEC. In this review, differences in breast milk, pasteurized DM, and formula lipids are highlighted, with a focus on the ability of those lipids to be digested and subsequently absorbed by neonates, especially those born prematurely and at risk for NEC.
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Durkin LA, Childs CE, Calder PC. Omega-3 Polyunsaturated Fatty Acids and the Intestinal Epithelium-A Review. Foods 2021; 10:foods10010199. [PMID: 33478161 PMCID: PMC7835870 DOI: 10.3390/foods10010199] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/07/2021] [Accepted: 01/11/2021] [Indexed: 12/13/2022] Open
Abstract
Epithelial cells (enterocytes) form part of the intestinal barrier, the largest human interface between the internal and external environments, and responsible for maintaining regulated intestinal absorption and immunological control. Under inflammatory conditions, the intestinal barrier and its component enterocytes become inflamed, leading to changes in barrier histology, permeability, and chemical mediator production. Omega-3 (ω-3) polyunsaturated fatty acids (PUFAs) can influence the inflammatory state of a range of cell types, including endothelial cells, monocytes, and macrophages. This review aims to assess the current literature detailing the effects of ω-3 PUFAs on epithelial cells. Marine-derived ω-3 PUFAs, eicosapentaenoic acid and docosahexaenoic acid, as well as plant-derived alpha-linolenic acid, are incorporated into intestinal epithelial cell membranes, prevent changes to epithelial permeability, inhibit the production of pro-inflammatory cytokines and eicosanoids and induce the production of anti-inflammatory eicosanoids and docosanoids. Altered inflammatory markers have been attributed to changes in activity and/or expression of proteins involved in inflammatory signalling including nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), peroxisome proliferator activated receptor (PPAR) α and γ, G-protein coupled receptor (GPR) 120 and cyclooxygenase (COX)-2. Effective doses for each ω-3 PUFA are difficult to determine due to inconsistencies in dose and time of exposure between different in vitro models and between in vivo and in vitro models. Further research is needed to determine the anti-inflammatory potential of less-studied ω-3 PUFAs, including docosapentaenoic acid and stearidonic acid.
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Affiliation(s)
- Luke A. Durkin
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; (C.E.C.); (P.C.C.)
- Correspondence:
| | - Caroline E. Childs
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; (C.E.C.); (P.C.C.)
- Institute of Life Sciences, University of Southampton, Southampton SO17 1BJ, UK
| | - Philip C. Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; (C.E.C.); (P.C.C.)
- Institute of Life Sciences, University of Southampton, Southampton SO17 1BJ, UK
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton SO16 6YD, UK
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27
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Review on the potential application of non-phenolic compounds from native Latin American food byproducts in inflammatory bowel diseases. Food Res Int 2021; 139:109796. [DOI: 10.1016/j.foodres.2020.109796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/01/2020] [Accepted: 10/04/2020] [Indexed: 12/16/2022]
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28
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Netto Cândido TL, da Silva LE, Cândido FG, Valente FX, da Silva JS, Gomes Lopes DR, do Carmo Gouveia Peluzio M, Mantovani HC, de Cássia Gonçalves Alfenas R. Effect of the ingestion of vegetable oils associated with energy-restricted normofat diet on intestinal microbiota and permeability in overweight women. Food Res Int 2020; 139:109951. [PMID: 33509504 DOI: 10.1016/j.foodres.2020.109951] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/21/2020] [Accepted: 11/28/2020] [Indexed: 10/22/2022]
Abstract
Previous studies suggest that the type of dietary fatty acid may modulate the intestinal bacterial ecosystem. However, this effect is still inconclusive. Thus, the aim of this study was to investigate the effect of the intake of vegetable oils rich in different types of fatty acids, associated with energy-restricted normofat diets, on the composition of intestinal microbiota and permeability, on LPS concentrations, and fecal short chain fatty acids and pH. This was a 9 consecutive weeks (±5 days), randomized, parallel, double-blind clinical trial. Overweight women received daily breakfast containing 25 mL of one of the test oils: soybean oil (n = 17), extra virgin olive oil (n = 19) or coconut oil (n = 16). Blood, fecal and urine samples were collected on the first and last day of the experiment for the analysis of the variables of interest. The consumption of the three oils did not affect the diversity and relative abundance of intestinal bacteria. We observed an increase in bacterial richness estimated by the Chao 1 index, and a reduction in the concentration of isovaleric fatty acid in the group that ingested soybean oil. Paracellular and transcellular permeability increased after the ingestion of extra virgin olive oil and coconut oil. However, LPS concentrations remained unchanged. The intake of different types of fatty acids associated with the energy-restricted normofat diet modestly affected the intestinal microbiota and permeability, without resulting in metabolic endotoxemia in overweight women.
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Affiliation(s)
- Thalita Lin Netto Cândido
- Laboratory of Studies in Food Ingestion, Department of Nutrition and Health, Federal University of Vicosa, Avenida PH Rolfs, s/n, CEP 36570-900 Vicosa, Minas Gerais, Brazil.
| | - Laís Emilia da Silva
- Laboratory of Studies in Food Ingestion, Department of Nutrition and Health, Federal University of Vicosa, Avenida PH Rolfs, s/n, CEP 36570-900 Vicosa, Minas Gerais, Brazil
| | - Flávia Galvão Cândido
- Laboratory of Studies in Food Ingestion, Department of Nutrition and Health, Federal University of Vicosa, Avenida PH Rolfs, s/n, CEP 36570-900 Vicosa, Minas Gerais, Brazil
| | - Flávia Xavier Valente
- Laboratory of Studies in Food Ingestion, Department of Nutrition and Health, Federal University of Vicosa, Avenida PH Rolfs, s/n, CEP 36570-900 Vicosa, Minas Gerais, Brazil
| | - Juliana Soares da Silva
- Laboratory Anaerobic Microbiology, Department of Microbiology, Federal University of Vicosa, Avenida PH Rolfs, s/n, CEP 36570-900 Vicosa, Minas Gerais, Brazil
| | - Déborah Romaskevis Gomes Lopes
- Laboratory Anaerobic Microbiology, Department of Microbiology, Federal University of Vicosa, Avenida PH Rolfs, s/n, CEP 36570-900 Vicosa, Minas Gerais, Brazil
| | - Maria do Carmo Gouveia Peluzio
- Laboratory of Studies in Food Ingestion, Department of Nutrition and Health, Federal University of Vicosa, Avenida PH Rolfs, s/n, CEP 36570-900 Vicosa, Minas Gerais, Brazil
| | - Hilário Cuquetto Mantovani
- Laboratory Anaerobic Microbiology, Department of Microbiology, Federal University of Vicosa, Avenida PH Rolfs, s/n, CEP 36570-900 Vicosa, Minas Gerais, Brazil
| | - Rita de Cássia Gonçalves Alfenas
- Laboratory of Studies in Food Ingestion, Department of Nutrition and Health, Federal University of Vicosa, Avenida PH Rolfs, s/n, CEP 36570-900 Vicosa, Minas Gerais, Brazil.
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29
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Dourado E, Ferro M, Sousa Guerreiro C, Fonseca JE. Diet as a Modulator of Intestinal Microbiota in Rheumatoid Arthritis. Nutrients 2020; 12:E3504. [PMID: 33202579 PMCID: PMC7696404 DOI: 10.3390/nu12113504] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/08/2020] [Accepted: 11/12/2020] [Indexed: 12/23/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic immune-driven inflammatory disease characterised by synovial inflammation, leading to progressive cartilage and bone destruction, impacting patients' functional capacity and quality of life. Patients with RA have significant differences in gut microbiota composition when compared to controls. Intestinal dysbiosis influences the intestinal barrier strength, integrity and function, and diet is considered the main environmental factor impacting gut microbiota. Over the last few years, researchers have focused on the influence of single components of the diet in the modulation of intestinal microbiota in RA rather than whole dietary patterns. In this review, we focus on how the Mediterranean diet (MD), a whole dietary pattern, could possibly act as an adjuvant therapeutic approach, modulating intestinal microbiota and intestinal barrier function in order to improve RA-related outcomes. We also review the potential effects of particular components of the MD, such as n-3 polyunsaturated fatty acids (PUFAs), polyphenols and fibre.
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Affiliation(s)
- Eduardo Dourado
- Serviço de Reumatologia e Doenças Ósseas Metabólicas, Centro Hospitalar Universitário Lisboa Norte, Centro Académico de Medicina de Lisboa (CAML), 1649-028 Lisboa, Portugal;
- Unidade de Investigação em Reumatologia, Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, CAML, 1649-028 Lisboa, Portugal
| | - Margarida Ferro
- Laboratório de Nutrição, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; (M.F.); (C.S.G.)
| | - Catarina Sousa Guerreiro
- Laboratório de Nutrição, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; (M.F.); (C.S.G.)
- Instituto de Saúde Ambiental, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - João Eurico Fonseca
- Serviço de Reumatologia e Doenças Ósseas Metabólicas, Centro Hospitalar Universitário Lisboa Norte, Centro Académico de Medicina de Lisboa (CAML), 1649-028 Lisboa, Portugal;
- Unidade de Investigação em Reumatologia, Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, CAML, 1649-028 Lisboa, Portugal
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30
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Binienda A, Twardowska A, Makaro A, Salaga M. Dietary Carbohydrates and Lipids in the Pathogenesis of Leaky Gut Syndrome: An Overview. Int J Mol Sci 2020; 21:ijms21218368. [PMID: 33171587 PMCID: PMC7664638 DOI: 10.3390/ijms21218368] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/05/2020] [Accepted: 11/06/2020] [Indexed: 12/12/2022] Open
Abstract
This review summarizes the recent knowledge on the effects of dietary carbohydrates and lipids on the pathophysiology of leaky gut syndrome (LGS). Alterations in intestinal barrier permeability may lead to serious gastrointestinal (GI) disorders. LGS is caused by intestinal hyperpermeability due to changes in the expression levels and functioning of tight junctions. The influence of dietary habits on intestinal physiology is clearly visible in incidence rates of intestinal diseases in industrial and developing countries. Diseases which are linked to intestinal hyperpermeability tend to localize to Westernized countries, where a diet rich in fats and refined carbohydrates predominates. Several studies suggest that fructose is one of the key carbohydrates involved in the regulation of the intestinal permeability and its overuse may cause harmful effects, such as tight junction protein dysfunction. On the other hand, short chain fatty acids (mainly butyrate) at appropriate concentrations may lead to the reduction of intestinal permeability, which is beneficial in LGS. However, long chain fatty acids, including n-3 and n-6 polyunsaturated fatty acids have unclear properties. Some of those behave as components untightening and tightening the intestinal membrane.
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Affiliation(s)
| | | | | | - Maciej Salaga
- Correspondence: ; Tel.: +48-42-272-57-07; Fax: +48-42-272-56-94
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Xiao K, Xu Q, Liu C, He P, Qin Q, Zhu H, Zhang J, Gin A, Zhang G, Liu Y. Docosahexaenoic acid alleviates cell injury and improves barrier function by suppressing necroptosis signalling in TNF-α-challenged porcine intestinal epithelial cells. Innate Immun 2020; 26:653-665. [PMID: 33106070 PMCID: PMC7787556 DOI: 10.1177/1753425920966686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/22/2020] [Accepted: 09/26/2020] [Indexed: 12/14/2022] Open
Abstract
Long-chain n-3 polyunsaturated fatty acids are known to have beneficial effects on intestinal health. However, the underling mechanisms are largely unknown. The present study was conducted to investigate whether docosahexaenoic acid (DHA) attenuates TNF-α-induced intestinal cell injury and barrier dysfunction by modulating necroptosis signalling. Intestinal porcine epithelial cell line 1 was cultured with or without 12.5 µg/ml DHA, followed by exposure to 50 ng/ml TNF-α for indicated time periods. DHA restored cell viability and cell number triggered by TNF-α. DHA also improved barrier function, which was indicated by increased trans-epithelial electrical resistance, decreased FD4 flux and increased membrane localisation of zonula occludins (ZO-1) and claudin-1. Moreover, DHA suppressed cell necrosis in TNF-α-challenged cells, as shown in the IncuCyte ZOOM™ live cell imaging system and transmission electron microscopy. In addition, DHA decreased protein expression of TNF receptor, receptor interacting protein kinase 1, RIP3 and phosphorylation of mixed lineage kinase-like protein, phosphoglycerate mutase family 5, dynamin-related protein 1 and high mobility group box-1 protein. Furthermore, DHA suppressed protein expression of caspase-3 and caspase-8. Collectively, these results indicate that DHA is capable of alleviating TNF-α-induced cell injury and barrier dysfunction by suppressing the necroptosis signalling pathway.
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Affiliation(s)
- Kan Xiao
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Centre for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Qiao Xu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Centre for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Congcong Liu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Centre for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Pengwei He
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Centre for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Qin Qin
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Centre for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Huiling Zhu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Centre for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Jing Zhang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Centre for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Ashley Gin
- Department of Animal and Food Sciences, Oklahoma State University, USA
| | - Guolong Zhang
- Department of Animal and Food Sciences, Oklahoma State University, USA
| | - Yulan Liu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Centre for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
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Abstract
In this systematic review, we critically evaluated human clinical trials that assessed the effects of dietary fat quality on metabolic endotoxaemia. The studies were selected from three databases (PubMed, Scopus and Cochrane Library), and the keywords were defined according to the Medical Subject Headings indexing terminology. Two authors searched independently, according to the pre-defined selection criteria. Quality and risk assessment of bias for each selected study were also evaluated. The results of the included studies demonstrated associations between higher SFA intake and increased postprandial lipopolysaccharide (LPS) concentrations. On the other hand, after the consumption of PUFA, bloodstream LPS concentrations were lower. However, in none of the long-term studies, the consumption of dietary fats did not seem to exert effects on LPS concentration. Hence, SFA seem to act as a risk factor for transient increase in endotoxaemia, while PUFA demonstrated exerting a protective effect. Taken together, the evidence suggests that the dietary fatty acid profile may influence bloodstream endotoxin concentrations through modulation of factors such LPS clearance, alkaline phosphatase activity, bile acid metabolism, intestinal permeability and intestinal microbiota composition.
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Suzuki T. Regulation of the intestinal barrier by nutrients: The role of tight junctions. Anim Sci J 2020; 91:e13357. [PMID: 32219956 PMCID: PMC7187240 DOI: 10.1111/asj.13357] [Citation(s) in RCA: 287] [Impact Index Per Article: 71.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/29/2020] [Accepted: 02/05/2020] [Indexed: 12/13/2022]
Abstract
Tight junctions (TJs) play an important role in intestinal barrier function. TJs in intestinal epithelial cells are composed of different junctional molecules, such as claudin and occludin, and regulate the paracellular permeability of water, ions, and macromolecules in adjacent cells. One of the most important roles of the TJ structure is to provide a physical barrier to luminal inflammatory molecules. Impaired integrity and structure of the TJ barrier result in a forcible activation of immune cells and chronic inflammation in different tissues. According to recent studies, the intestinal TJ barrier could be regulated, as a potential target, by dietary factors to prevent and reduce different inflammatory disorders, although the precise mechanisms underlying the dietary regulation remain unclear. This review summarizes currently available information on the regulation of the intestinal TJ barrier by food components.
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Affiliation(s)
- Takuya Suzuki
- Department of Biofunctional Science and Technology, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Japan.,Program of Food and AgriLife Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
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34
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Wawrzyniak P, Noureddine N, Wawrzyniak M, Lucchinetti E, Krämer SD, Rogler G, Zaugg M, Hersberger M. Nutritional Lipids and Mucosal Inflammation. Mol Nutr Food Res 2020; 65:e1901269. [PMID: 32780927 DOI: 10.1002/mnfr.201901269] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 07/24/2020] [Indexed: 12/19/2022]
Abstract
Inflammatory bowel disease (IBD) is characterized by chronic relapsing inflammation in the intestine. Given their role in regulation of inflammation, long-chain n-3 polyunsaturated fatty acids (PUFAs) represent a potential supplementary therapeutic approach to current drug regimens used for IBD. Mechanistically, there is ample evidence for an anti-inflammatory and pro-resolution effect of long-chain n-3 PUFAs after they incorporate into cell membrane phospholipids. They disrupt membrane rafts and when released from the membrane suppress inflammatory signaling by activating PPAR-γ and free fatty acid receptor 4; furthermore, they shift the lipid mediator profile from pro-inflammatory eicosanoids to specialized pro-resolving mediators. The allocation of long-chain n-3 PUFAs also leads to a higher microbiome diversity in the gut, increases short-chain fatty acid-producing bacteria, and improves intestinal barrier function by sealing epithelial tight junctions. In line with these mechanistic studies, most epidemiological studies support a beneficial effect of long-chain n-3 PUFAs intake on reducing the incidence of IBD. However, the results from intervention trials on the prevention of relapse in IBD patients show no or only a marginal effect of long-chain n-3 PUFAs supplementation. In light of the current literature, international recommendations are supported that adequate diet-derived n-3 PUFAs might be beneficial in maintaining remission in IBD patients.
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Affiliation(s)
- Paulina Wawrzyniak
- Division of Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, Zurich, 8032, Switzerland.,Children's Research Center, University Children's Hospital Zurich, Zurich, 8032, Switzerland
| | - Nazek Noureddine
- Division of Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, Zurich, 8032, Switzerland.,Children's Research Center, University Children's Hospital Zurich, Zurich, 8032, Switzerland.,Center for Integrative Human Physiology, University of Zurich, Zurich, 8057, Switzerland
| | - Marcin Wawrzyniak
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, 8091, Switzerland
| | - Eliana Lucchinetti
- Department of Anesthesiology and Pain Medicine and Cardiovascular Research Centre, University of Alberta, Edmonton, T6G 2R3, Canada
| | - Stefanie D Krämer
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Gerhard Rogler
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, 8091, Switzerland
| | - Michael Zaugg
- Department of Anesthesiology and Pain Medicine and Cardiovascular Research Centre, University of Alberta, Edmonton, T6G 2R3, Canada.,Department of Pharmacology, University of Alberta, Edmonton, T6G 2R3, Canada
| | - Martin Hersberger
- Division of Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, Zurich, 8032, Switzerland.,Children's Research Center, University Children's Hospital Zurich, Zurich, 8032, Switzerland.,Center for Integrative Human Physiology, University of Zurich, Zurich, 8057, Switzerland
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35
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Keirns BH, Lucas EA, Smith BJ. Phytochemicals affect T helper 17 and T regulatory cells and gut integrity: implications on the gut-bone axis. Nutr Res 2020; 83:30-48. [PMID: 33010588 DOI: 10.1016/j.nutres.2020.08.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 08/05/2020] [Accepted: 08/11/2020] [Indexed: 12/16/2022]
Abstract
The pathology of osteoporosis is multifactorial, but a growing body of evidence supports an important role of the gut-bone axis, especially in bone loss associated with menopause, rheumatoid arthritis, and periodontal disease. Aberrant T cell responses favoring an increase in the ratio of T helper 17 cells to T regulatory cells play a critical role in the underlying etiology of this bone loss. Many of the dietary phytochemicals known to have osteoprotective activity such as flavonoids, organosulfur compounds, phenolic acids, as well as the oligosaccharides also improve gut barrier function and affect T cell differentiation and activation within gut-associated lymphoid tissues and at distal sites. Here, we examine the potential of these phytochemicals to act as prebiotics and immunomodulating agents, in part targeting the gut to mediate their effects on bone.
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Affiliation(s)
- Bryant H Keirns
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078.
| | - Edralin A Lucas
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078.
| | - Brenda J Smith
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078.
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36
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Intestinal Permeability in Children with Celiac Disease after the Administration of Oligofructose-Enriched Inulin into a Gluten-Free Diet-Results of a Randomized, Placebo-Controlled, Pilot Trial. Nutrients 2020; 12:nu12061736. [PMID: 32531982 PMCID: PMC7352250 DOI: 10.3390/nu12061736] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/02/2020] [Accepted: 06/09/2020] [Indexed: 12/20/2022] Open
Abstract
Abnormalities in the intestinal barrier are a possible cause of celiac disease (CD) development. In animal studies, the positive effect of prebiotics on the improvement of gut barrier parameters has been observed, but the results of human studies to date remain inconsistent. Therefore, this study aimed to evaluate the effect of twelve-week supplementation of a gluten-free diet (GFD) with prebiotic oligofructose-enriched inulin (10 g per day) on the intestinal permeability in children with CD treated with a GFD. A pilot, randomized, placebo-controlled nutritional intervention was conducted in 34 children with CD, being on a strict GFD. Sugar absorption test (SAT) and the concentrations of intestinal permeability markers, such as zonulin, intestinal fatty acid-binding protein, claudin-3, calprotectin, and glucagon-like peptide-2, were measured. We found that the supplementation with prebiotic did not have a substantial effect on barrier integrity. Prebiotic intake increased excretion of mannitol, which may suggest an increase in the epithelial surface. Most children in our study seem to have normal values for intestinal permeability tests before the intervention. For individuals with elevated values, improvement in calprotectin and SAT was observed after the prebiotic intake. This preliminary study suggests that prebiotics may have an impact on the intestinal barrier, but it requires confirmation in studies with more subjects with ongoing leaky gut.
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Hoppenbrouwers T, Fogliano V, Garssen J, Pellegrini N, Willemsen LEM, Wichers HJ. Specific Polyunsaturated Fatty Acids Can Modulate in vitro Human moDC2s and Subsequent Th2 Cytokine Release. Front Immunol 2020; 11:748. [PMID: 32431702 PMCID: PMC7212991 DOI: 10.3389/fimmu.2020.00748] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 04/01/2020] [Indexed: 01/05/2023] Open
Abstract
Allergy is becoming a rapidly increasing problem worldwide, and in vitro models are frequently used to study the mechanisms behind the different types of allergic response. The dendritic cell (DC)–T-cell model can be used to study sensitization. However, lipopolysaccharide (LPS) is often used to maturate the DCs, but it gives rise to a DC1 phenotype, whereas Th2-driven inflammatory diseases such as allergy are characterized by the involvement of the DC2 phenotype. Our aim was to create a DC2–T-cell human model (human moDC2s) to study in vitro sensitization and validate the model using polyunsaturated fatty acids (PUFAs) that were previously shown to have immunomodulatory properties. We found that the generated DC2s expressed OX40L and drove naive T-cells into IL-13 production of CD4+ effector T-cells. In line with in vivo findings, n−3 long-chain (LC)PUFA docosahexaenoic acid (DHA) effectively decreased the DC2's surface expression of OX40L, as well as the IL-12p40 and IL-23 cytokine production by DC2s and subsequently lowered IL-13 production by DC2-induced effector T-cells. Similar cytokine production effects were found with eicosapentaenoic acid (EPA) and arachidonic acid (AA), whereas linoleic acid (LA) increased OX40L surface expression and subsequent T-cell-derived IL-13/IFNγ ratios, suggesting an increased risk of allergy development. Altogether, these data show that human moDC2s are able to induce Th2-type IL-13 secretion by T-cell differentiated in the presence of these DC2s and that this model can be differentially modulated by PUFAs. These results are in line with previous in vivo studies using PUFAs, indicating that this model may be of use to predict in vivo outcomes.
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Affiliation(s)
| | - Vincenzo Fogliano
- Food Quality and Design, Wageningen University & Research, Wageningen, Netherlands
| | - Johan Garssen
- Division of Pharmacology, Department of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands.,Department of Immunology, Nutricia Research BV, Utrecht, Netherlands
| | - Nicoletta Pellegrini
- Food Quality and Design, Wageningen University & Research, Wageningen, Netherlands
| | - Linette E M Willemsen
- Division of Pharmacology, Department of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Harry J Wichers
- Food and Biobased Research, Wageningen University & Research, Wageningen, Netherlands
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38
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Ramiro-Cortijo D, Singh P, Liu Y, Medina-Morales E, Yakah W, Freedman SD, Martin CR. Breast Milk Lipids and Fatty Acids in Regulating Neonatal Intestinal Development and Protecting against Intestinal Injury. Nutrients 2020; 12:E534. [PMID: 32092925 PMCID: PMC7071444 DOI: 10.3390/nu12020534] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/14/2020] [Accepted: 02/16/2020] [Indexed: 12/13/2022] Open
Abstract
Human breast milk is the optimal source of nutrition for infant growth and development. Breast milk fats and their downstream derivatives of fatty acids and fatty acid-derived terminal mediators not only provide an energy source but also are important regulators of development, immune function, and metabolism. The composition of the lipids and fatty acids determines the nutritional and physicochemical properties of human milk fat. Essential fatty acids, including long-chain polyunsaturated fatty acids (LCPUFAs) and specialized pro-resolving mediators, are critical for growth, organogenesis, and regulation of inflammation. Combined data including in vitro, in vivo, and human cohort studies support the beneficial effects of human breast milk in intestinal development and in reducing the risk of intestinal injury. Human milk has been shown to reduce the occurrence of necrotizing enterocolitis (NEC), a common gastrointestinal disease in preterm infants. Preterm infants fed human breast milk are less likely to develop NEC compared to preterm infants receiving infant formula. Intestinal development and its physiological functions are highly adaptive to changes in nutritional status influencing the susceptibility towards intestinal injury in response to pathological challenges. In this review, we focus on lipids and fatty acids present in breast milk and their impact on neonatal gut development and the risk of disease.
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Affiliation(s)
- David Ramiro-Cortijo
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA; (D.R.-C.); (P.S.); (Y.L.); (E.M.-M.); (S.D.F.)
| | - Pratibha Singh
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA; (D.R.-C.); (P.S.); (Y.L.); (E.M.-M.); (S.D.F.)
| | - Yan Liu
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA; (D.R.-C.); (P.S.); (Y.L.); (E.M.-M.); (S.D.F.)
| | - Esli Medina-Morales
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA; (D.R.-C.); (P.S.); (Y.L.); (E.M.-M.); (S.D.F.)
| | - William Yakah
- Department of Neonatology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA;
| | - Steven D. Freedman
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA; (D.R.-C.); (P.S.); (Y.L.); (E.M.-M.); (S.D.F.)
- Division of Translational Research, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA
| | - Camilia R. Martin
- Department of Neonatology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA;
- Division of Translational Research, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA
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Li Q, Liang X, Xue X, Wang K, Wu L. Lipidomics Provides Novel Insights into Understanding the Bee Pollen Lipids Transepithelial Transport and Metabolism in Human Intestinal Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:907-917. [PMID: 31842537 DOI: 10.1021/acs.jafc.9b06531] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bee pollen (BP) shows profound gut-protecting potentials. BP lipids (BPLs) mainly composed by phospholipids and polyunsaturated fatty acids might be one of the important contributors, while how BPL exerts gut-protecting effects and is transported through intestinal cell monolayers need to be investigated. Here, we exploited a strategy that combines an UPLC-Q-exactive orbitrap/MS-based lipidomics approach with a human intestinal cell (Caco-2) monolayer transport model, to determine the transepithelial transportation of BPL from Camellia sinensis L. (BPL-Cs), in pathological conditions. The results showed that BPL-Cs protected Caco-2 cells against dextran sulfate sodium (DSS)-induced intestinal barrier dysfunction by improving cell viability, maintaining membrane integrity, increasing tight junctions (ZO-1 and Claudin-1), and eliciting the expressions of antioxidative-related genes (NQO1, Nrf2, Txnrd1, and GSTA1). Lipidomics analysis revealed that DSS suppressed the transport and uptake of most of BPL-Cs including glycerophospholipids, sphingomyelins, and glycosylsphingolipids. Pretreatment with BPL-Cs significantly regulated glycerophospholipid and sphingolipid metabolisms, potentially involved in building permeability barriers and alleviating intestinal oxidative stress. Finally, eight classes of lipids were identified as the potential biomarkers for evaluating DSS-induced Caco-2 cell dysfunctions and BPL-intervened modulation. These findings shed light on the development of BPL as gastrointestinal protective food supplements in the future.
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Affiliation(s)
- Qiangqiang Li
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences , Beijing 100093 , China
| | - Xinwen Liang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences , Beijing 100093 , China
| | - Xiaofeng Xue
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences , Beijing 100093 , China
| | - Kai Wang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences , Beijing 100093 , China
| | - Liming Wu
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences , Beijing 100093 , China
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40
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Pérez-Rodríguez L, Martínez-Blanco M, Lozano-Ojalvo D, Molina E, López-Fandiño R. Egg yolk augments type 2 immunity by activating innate cells. Eur J Nutr 2020; 59:3245-3256. [PMID: 31903504 DOI: 10.1007/s00394-019-02163-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 12/13/2019] [Indexed: 12/18/2022]
Abstract
PURPOSE Egg yolk (EY) may play a role during the sensitizing phase of egg allergy by exerting intestinal type 2-biasing effects. We aimed to identify the mechanism and role of EY in the induction of allergy to egg white (EW). METHODS BALB/c mice were exposed intragastrically to EW, EY, or the mixture of EW:EY. In addition in vitro experiments were conducted with intestinal epithelial cells (IECs), dendritic cells (DCs), and T cells from naïve mice. Inflammatory and type 2 responses were evaluated. RESULTS Administration of EW upregulated duodenal expression of factors that influence epithelial barrier integrity and function, such as Muc2 and Cldn2, type 2-promoting epithelial cytokines Il33 and Il25, DC genes Irf4 and Tnfsf4, and Th2-cytokines Il14 and Il13. EW:EY further increased the expression of Il25 and Tslp in the duodenum, Il33 and Tslp in the jejunum, and the proportion of lamina propria group 2 innate immune cells (ILC2s) over EW alone. Moreover, it distinctively enhanced the expression of Irf4 and Cd1d1 in the Peyer's patches (PPs), and of Il6, Il33, Gata3, and Il13, both in PPs and mesenteric lymph nodes. In co-cultures of DCs and T cells, EW:EY induced a higher expression of Gata3, Il4, and Il13, secretion of IL-13 and expansion of CD4+ T cells expressing ST2, the IL-33 receptor, than EW or EY added individually. CONCLUSION Co-administration of EY may promote sensitization to EW through activation of innate immune cells, such as IECs, DCs and ILC2s, that are central to the progress of allergies.
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Affiliation(s)
- Leticia Pérez-Rodríguez
- Instituto de Investigación en Ciencias de La Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049, Madrid, Spain
| | - Mónica Martínez-Blanco
- Instituto de Investigación en Ciencias de La Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049, Madrid, Spain
| | - Daniel Lozano-Ojalvo
- Instituto de Investigación en Ciencias de La Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049, Madrid, Spain
| | - Elena Molina
- Instituto de Investigación en Ciencias de La Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049, Madrid, Spain
| | - Rosina López-Fandiño
- Instituto de Investigación en Ciencias de La Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049, Madrid, Spain.
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Xiao K, Liu C, Qin Q, Zhang Y, Wang X, Zhang J, Odle J, Lin X, Hu CAA, Liu Y. EPA and DHA attenuate deoxynivalenol-induced intestinal porcine epithelial cell injury and protect barrier function integrity by inhibiting necroptosis signaling pathway. FASEB J 2019; 34:2483-2496. [PMID: 31909535 DOI: 10.1096/fj.201902298r] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/26/2019] [Accepted: 12/03/2019] [Indexed: 12/30/2022]
Abstract
Deoxynivalenol (DON) is one of the most common mycotoxins that contaminates food or feed and cause intestinal damage. Long-chain n-3 polyunsaturated fatty acids (PUFA) such as EPA and DHA exert beneficial effects on intestinal integrity in animal models and clinical trials. Necroptosis signaling pathway plays a critical role in intestinal cell injury. This study tested the hypothesis that EPA and DHA could alleviate DON-induced injury to intestinal porcine epithelial cells through modulation of the necroptosis signaling pathway. Intestinal porcine epithelial cell 1 (IPEC-1) cells were cultured with or without EPA or DHA (6.25-25 μg/mL) in the presence or absence of 0.5 μg/mL DON for indicated time points. Cell viability, cell number, lactate dehydrogenase (LDH) activity, cell necrosis, transepithelial electrical resistance (TEER), fluorescein isothiocyanate-labeled dextran 4kDa (FD4) flux, tight junction protein distribution, and protein abundance of necroptosis related signals were determined. EPA and DHA promoted cell growth indicated by higher cell viability and cell number, and inhibited cell injury indicated by lower LDH activity in the media. EPA and DHA also improved intestinal barrier function, indicated by higher TEER and lower permeability of FD4 flux as well as increased proportions of tight junction proteins located in the plasma membrane. Moreover, EPA and DHA decreased cell necrosis demonstrated by live cell imaging and transmission electron microscopy. Finally, EPA and DHA downregulated protein expressions of necroptosis related signals including tumor necrosis factor receptor (TNFR1), receptor interacting protein kinase 1 (RIP1), RIP3, phosphorylated mixed lineage kinase-like protein (MLKL), phosphoglycerate mutase family 5 (PGAM5), dynamin-related protein 1 (Drp1), and high mobility group box-1 protein (HMGB1). EPA and DHA also inhibited protein expression of caspase-3 and caspase-8. These results suggest that EPA and DHA prevent DON-induced intestinal cell injury and enhance barrier function, which is associated with inhibition of the necroptosis signaling pathway.
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Affiliation(s)
- Kan Xiao
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, P.R. China
| | - Congcong Liu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, P.R. China
| | - Qin Qin
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, P.R. China
| | - Yang Zhang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, P.R. China
| | - Xiuying Wang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, P.R. China
| | - Jing Zhang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, P.R. China
| | - Jack Odle
- Laboratory of Developmental Nutrition, Department of Animal Science, North Carolina State University, Raleigh, NC, USA
| | - Xi Lin
- Laboratory of Developmental Nutrition, Department of Animal Science, North Carolina State University, Raleigh, NC, USA
| | - Chien-An Andy Hu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, P.R. China.,Department of Biochemistry and Molecular Biology, University of New Mexico School of Medicine, Albuquerque, NM, USA
| | - Yulan Liu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, P.R. China
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42
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Radzikowska U, Rinaldi AO, Çelebi Sözener Z, Karaguzel D, Wojcik M, Cypryk K, Akdis M, Akdis CA, Sokolowska M. The Influence of Dietary Fatty Acids on Immune Responses. Nutrients 2019; 11:E2990. [PMID: 31817726 PMCID: PMC6950146 DOI: 10.3390/nu11122990] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/25/2019] [Accepted: 12/02/2019] [Indexed: 12/16/2022] Open
Abstract
Diet-derived fatty acids (FAs) are essential sources of energy and fundamental structural components of cells. They also play important roles in the modulation of immune responses in health and disease. Saturated and unsaturated FAs influence the effector and regulatory functions of innate and adaptive immune cells by changing membrane composition and fluidity and by acting through specific receptors. Impaired balance of saturated/unsaturated FAs, as well as n-6/n-3 polyunsaturated FAs has significant consequences on immune system homeostasis, contributing to the development of many allergic, autoimmune, and metabolic diseases. In this paper, we discuss up-to-date knowledge and the clinical relevance of the influence of dietary FAs on the biology, homeostasis, and functions of epithelial cells, macrophages, dendritic cells, neutrophils, innate lymphoid cells, T cells and B cells. Additionally, we review the effects of dietary FAs on the pathogenesis of many diseases, including asthma, allergic rhinitis, food allergy, atopic dermatitis, rheumatoid arthritis, multiple sclerosis as well as type 1 and 2 diabetes.
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Affiliation(s)
- Urszula Radzikowska
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, 7265 Davos Wolfgang, Switzerland
- Christine Kühne-Center for Allergy Research and Education, 7265 Davos Wolfgang, Switzerland
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, 15-269 Bialystok, Poland
| | - Arturo O Rinaldi
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, 7265 Davos Wolfgang, Switzerland
- Christine Kühne-Center for Allergy Research and Education, 7265 Davos Wolfgang, Switzerland
| | - Zeynep Çelebi Sözener
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, 7265 Davos Wolfgang, Switzerland
- Department of Chest Disease, Division of Allergy and Clinical Immunology, Ankara University School of Medicine, 06100 Ankara, Turkey
| | - Dilara Karaguzel
- Department of Biology, Faculty of Science, Hacettepe University, 06800 Ankara, Turkey
| | - Marzena Wojcik
- Department of Structural Biology, Medical University of Lodz, 90-752 Lodz, Poland
| | - Katarzyna Cypryk
- Department of Internal Medicine and Diabetology, Medical University of Lodz, 90-549 Lodz, Poland
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, 7265 Davos Wolfgang, Switzerland
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, 7265 Davos Wolfgang, Switzerland
- Christine Kühne-Center for Allergy Research and Education, 7265 Davos Wolfgang, Switzerland
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, 7265 Davos Wolfgang, Switzerland
- Christine Kühne-Center for Allergy Research and Education, 7265 Davos Wolfgang, Switzerland
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Docosahexaenoic and Eicosapentaenoic Acids Prevent Altered-Muc2 Secretion Induced by Palmitic Acid by Alleviating Endoplasmic Reticulum Stress in LS174T Goblet Cells. Nutrients 2019; 11:nu11092179. [PMID: 31514316 PMCID: PMC6770956 DOI: 10.3390/nu11092179] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/06/2019] [Accepted: 09/08/2019] [Indexed: 12/14/2022] Open
Abstract
Diets high in saturated fatty acids (FA) represent a risk factor for the development of obesity and associated metabolic disorders, partly through their impact on the epithelial cell barrier integrity. We hypothesized that unsaturated FA could alleviate saturated FA-induced endoplasmic reticulum (ER) stress occurring in intestinal secretory goblet cells, and consequently the reduced synthesis and secretion of mucins that form the protective mucus barrier. To investigate this hypothesis, we treated well-differentiated human colonic LS174T goblet cells with palmitic acid (PAL)—the most commonly used inducer of lipotoxicity in in vitro systems—or n-9, n-6, or n-3 unsaturated fatty acids alone or in co-treatment with PAL, and measured the impact of such treatments on ER stress and Muc2 production. Our results showed that only eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids protect goblet cells against ER stress-mediated altered Muc2 secretion induced by PAL, whereas neither linolenic acid nor n-9 and n-6 FA are able to provide such protection. We conclude that EPA and DHA could represent potential therapeutic nutrients against the detrimental lipotoxicity of saturated fatty acids, associated with type 2 diabetes and obesity or inflammatory bowel disease. These in vitro data remain to be explored in vivo in a context of dietary obesity.
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Webb DL. Tests of intestinal mucosal hyperpermeability: Many diseases, many biomarkers and a bright future. Best Pract Res Clin Gastroenterol 2019; 40-41:101636. [PMID: 31594645 DOI: 10.1016/j.bpg.2019.101636] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/18/2019] [Indexed: 01/31/2023]
Abstract
The number of disorders now linked to increased intestinal mucosal permeability implies that a substantial percent of the population is affected. Drug interventions targeting reduced tight junctional permeability are being pursued. Although hyper-permeability in itself is not a clinically recognized disease entity, its relationship to disease processes has driven interest in measuring, and even monitoring mucosal permeability in vivo. Along with improved knowledge of gut barrier physiology, advances have been made in tests and biomarkers of barrier function. Drawing from our experiences in the past decade, considerations and challenges faced in assessing in vivo intestinal permeability are discussed herein, along with indications of what the future might hold.
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Affiliation(s)
- Dominic-Luc Webb
- Gastroenterology and Hepatology Unit, Department of Medical Sciences, Uppsala University, Uppsala, Sweden.
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Singh P, Ochoa Allemant P, Brown J, Perides G, Freedman SD, Martin CR. Effect of polyunsaturated fatty acids on postnatal ileum development using the fat-1 transgenic mouse model. Pediatr Res 2019; 85:556-565. [PMID: 30653193 PMCID: PMC6397682 DOI: 10.1038/s41390-019-0284-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 12/05/2018] [Accepted: 12/18/2018] [Indexed: 11/09/2022]
Abstract
BACKGROUND Long-chain polyunsaturated fatty acids (LCPUFAs) play a critical role in neonatal health. We hypothesized that LCPUFAs play an essential role in priming postnatal gut development. We studied the effect of LCPUFAs on postnatal gut development using fat-1 transgenic mice, which are capable of converting n-6 to n-3 LCPUFAs, and wild-type (WT) C57BL/6 mice. METHODS Distal ileum sections were collected from fat-1 and WT mice on days 3, 14, and 28. Fatty acid analyses, histology, RT-qPCR and intestinal permeability were performed. RESULTS Fat-1 mice, relative to WT mice, showed increased n-3 LCPUFAs levels (α-linolenic acid, docosahexaenoic acid, and eicosapentaenoic acid, p < 0.05) and decreased arachidonic acid levels (p < 0.05) in the ileum. Preweaning fat-1 mice, compared to WT, showed >50% reduced muc2, Tff3, TLR9, and Camp expression (p < 0.05), markers of the innate immune response. There was a >two-fold increased expression of Fzd5 and EphB2, markers of cell differentiation (p < 0.05), and Fabp2 and 6, regulators of fatty acid transport and metabolism (p < 0.05). Despite reduced expression of tight junction genes, intestinal permeability in fat-1 was comparable to WT mice. CONCLUSIONS Our data support the hypothesis that fatty acid profiles early in development modulate intestinal gene expression in formative domains, such as cell differentiation, tight junctions, other innate host defenses, and lipid metabolism.
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Affiliation(s)
- Pratibha Singh
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, MA,,Harvard Medical School, Boston, MA
| | - Pedro Ochoa Allemant
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, MA,,Harvard Medical School, Boston, MA
| | - Joanne Brown
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, MA,,Harvard Medical School, Boston, MA
| | - George Perides
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, MA,,Harvard Medical School, Boston, MA
| | - Steven D. Freedman
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, MA,,Division of Translational Research, Beth Israel Deaconess Medical Center, MA,,Harvard Medical School, Boston, MA
| | - Camilia R Martin
- Department of Neonatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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Bellenger J, Bellenger S, Escoula Q, Bidu C, Narce M. N-3 polyunsaturated fatty acids: An innovative strategy against obesity and related metabolic disorders, intestinal alteration and gut microbiota dysbiosis. Biochimie 2019; 159:66-71. [PMID: 30690133 DOI: 10.1016/j.biochi.2019.01.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 01/22/2019] [Indexed: 01/04/2023]
Abstract
Obesity is now widely recognized to be associated with low-grade systemic inflammation. It has been shown that high-fat feeding modulates gut microbiota which strongly increased intestinal permeability leading to lipopolysaccharide absorption causing metabolic endotoxemia that triggers inflammation and metabolic disorders. N-3 polyunsaturated fatty acids (PUFAs) have been shown associated with anti-obesity properties, but results still remain heterogeneous and very few studies underlined the metabolic pathways involved. Thus, the use of Fat-1 transgenic mice allows to better understanding whether endogenous n-3 PUFAs enrichment contributes to obesity and associated metabolic disorders prevention. It specially evidence that such effects occur through modulations of gut microbiota and intestinal permeability. Then, by remodeling gut microbiota, endogenous n-3 PUFAs improve HF/HS-diet induced features of the metabolic syndrome which in turn affects host metabolism. Thus, increasing anti-obesogenic microbial species in the gut microbiota population (i.e Akkermansia) by appropriate n-3 PUFAs may represent a promising strategy to control or prevent metabolic diseases.
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Affiliation(s)
- Jérôme Bellenger
- Université de Bourgogne Franche-Comté, UFR Sciences de la Vie, de la Terre et de l'Environnement, Lipides Nutrition Cancer UMR UMR1231, 6 Boulevard Gabriel, 21000, Dijon, France; INSERM, Lipides Nutrition Cancer UMR1231, 21000, Dijon, France; LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, 21000, Dijon, France.
| | - Sandrine Bellenger
- Université de Bourgogne Franche-Comté, UFR Sciences de la Vie, de la Terre et de l'Environnement, Lipides Nutrition Cancer UMR UMR1231, 6 Boulevard Gabriel, 21000, Dijon, France; INSERM, Lipides Nutrition Cancer UMR1231, 21000, Dijon, France; LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, 21000, Dijon, France
| | - Quentin Escoula
- Université de Bourgogne Franche-Comté, UFR Sciences de la Vie, de la Terre et de l'Environnement, Lipides Nutrition Cancer UMR UMR1231, 6 Boulevard Gabriel, 21000, Dijon, France; INSERM, Lipides Nutrition Cancer UMR1231, 21000, Dijon, France; LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, 21000, Dijon, France; Valorex, La Messayais, 35210, Combourtillé, France
| | - Célia Bidu
- Université de Bourgogne Franche-Comté, UFR Sciences de la Vie, de la Terre et de l'Environnement, Lipides Nutrition Cancer UMR UMR1231, 6 Boulevard Gabriel, 21000, Dijon, France; INSERM, Lipides Nutrition Cancer UMR1231, 21000, Dijon, France; LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, 21000, Dijon, France
| | - Michel Narce
- Université de Bourgogne Franche-Comté, UFR Sciences de la Vie, de la Terre et de l'Environnement, Lipides Nutrition Cancer UMR UMR1231, 6 Boulevard Gabriel, 21000, Dijon, France; INSERM, Lipides Nutrition Cancer UMR1231, 21000, Dijon, France; LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, 21000, Dijon, France.
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Zhai Z, Wang J, Huang B, Yin S. Low-fat yogurt alleviates the pro-inflammatory cytokine IL-1β-induced intestinal epithelial barrier dysfunction. J Dairy Sci 2018; 102:976-984. [PMID: 30580944 DOI: 10.3168/jds.2018-15226] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 10/11/2018] [Indexed: 12/19/2022]
Abstract
Yogurt is a source of bioactive compounds and probiotic microorganisms that modify immunity and metabolism to benefit human health beyond nutrition. In this study, we examined the capacity of yogurt to prevent epithelial barrier disruption in vitro. Different preparations of yogurt were added apically to Caco-2 monolayers before IL-1β exposure. Dulbecco's modified Eagle medium containing 25% (vol/vol) low-fat yogurt prevented cytokine-induced transepithelial resistance reduction and increases to paracellular permeability measured with fluorescein isothiocyanate-dextran (4 kDa), whereas nonfat yogurt was unable to decrease paracellular permeability to fluorescein isothiocyanate-dextran. Moreover, the concentration of IL-8 in low-fat-yogurt-treated inflamed cells was decreased to 252.40 ± 27.24 pg/mL, which was lower than that of untreated, inflamed cells (407.20 ± 50.05 pg/mL), further indicating the anti-inflammatory roles of low-fat yogurt. The low-fat yogurt was able to downregulate the transcription of myosin light-chain kinase (MLCK) gene, but upregulate the expression of tight junction protein ZO-1 (TJP1). These findings indicate that low-fat yogurt can maintain intestinal barrier integrity better than nonfat yogurt after pro-inflammatory cytokine exposure.
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Affiliation(s)
- Zhengyuan Zhai
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, PR China; Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, PR China
| | - Jiaojiao Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, PR China
| | - Baozhu Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, PR China; Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, PR China
| | - Sheng Yin
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, PR China; Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, PR China.
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Connection between Systemic Inflammation and Neuroinflammation Underlies Neuroprotective Mechanism of Several Phytochemicals in Neurodegenerative Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1972714. [PMID: 30402203 PMCID: PMC6196798 DOI: 10.1155/2018/1972714] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 09/05/2018] [Accepted: 09/10/2018] [Indexed: 12/15/2022]
Abstract
Oxidative damage, mitochondrial dysfunction, and neuroinflammation are strongly implicated in the pathogenesis of neurodegenerative diseases including Alzheimer's disease (AD) and Parkinson's disease (PD), and a substantial portion of elderly population at risk of these diseases requires nutritional intervention to benefit health due to lack of clinically relevant drugs. To this end, anti-inflammatory mechanisms of several phytochemicals such as curcumin, resveratrol, propolis, polyunsaturated fatty acids (PUFAs), and ginsenosides have been extensively studied. However, correlation of the phytochemicals with neuroinflammation or brain nutrition is not fully considered, especially in their therapeutic mechanism for neuronal damage or dysfunction. In this article, we review the advance in antioxidative and anti-inflammatory effects of phytochemicals and discuss the potential communication with brain microenvironment by improved gastrointestinal function, enhanced systemic immunity, and neuroprotective outcomes. These data show that phytochemicals may modulate and suppress neuroinflammation of the brain by several approaches: (1) reducing systemic inflammation and infiltration via the blood-brain barrier (BBB), (2) direct permeation into the brain parenchyma leading to neuroprotection, (3) enhancing integrity of disrupted BBB, and (4) vagal reflex-mediated nutrition and protection by gastrointestinal function signaling to the brain. Therefore, many phytochemicals have multiple potential neuroprotective approaches contributing to therapeutic benefit for pathogenesis of neurodegenerative diseases, and development of strategies for preventing these diseases represents a considerable public health concern and socioeconomic burden.
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Bidu C, Escoula Q, Bellenger S, Spor A, Galan M, Geissler A, Bouchot A, Dardevet D, Morio B, Cani PD, Lagrost L, Narce M, Bellenger J. The Transplantation of ω3 PUFA-Altered Gut Microbiota of fat-1 Mice to Wild-Type Littermates Prevents Obesity and Associated Metabolic Disorders. Diabetes 2018; 67:1512-1523. [PMID: 29793999 DOI: 10.2337/db17-1488] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 04/21/2018] [Indexed: 11/13/2022]
Abstract
Altering the gut microbiome may be beneficial to the host and recently arose as a promising strategy to manage obesity. Here, we investigated the relative contribution of ω3 polyunsaturated fatty acid (PUFA)-mediated alterations in the microbiota to metabolic parameter changes in mice. Four groups were compared: male fat-1 transgenic mice (with constitutive production of ω3 PUFAs) and male wild-type (WT) littermates fed an obesogenic (high fat/high sucrose [HFHS]) or a control diet. Unlike WT mice, HFHS-fed fat-1 mice were protected against obesity, glucose intolerance, and hepatic steatosis. Unlike WT mice, fat-1 mice maintained a normal barrier function, resulting in a significantly lower metabolic endotoxemia. The fat-1 mice displayed greater phylogenic diversity in the cecum, and fecal microbiota transplantation from fat-1 to WT mice was able to reverse weight gain and to normalize glucose tolerance and intestinal permeability. We concluded that the ω3 PUFA-mediated alteration of gut microbiota contributed to the prevention of metabolic syndrome in fat-1 mice. It occurred independently of changes in the PUFA content of host tissues and may represent a promising strategy to prevent metabolic disease and preserve a lean phenotype.
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Affiliation(s)
- Célia Bidu
- University of Bourgogne Franche-Comté, L'Unité de Formation Sciences de la Vie, de la Terre et de l'Environnement, Lipides Nutrition Cancer UMR1231, Dijon, France
- INSERM, Lipides Nutrition Cancer UMR1231, Dijon, France
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, Dijon, France
| | - Quentin Escoula
- University of Bourgogne Franche-Comté, L'Unité de Formation Sciences de la Vie, de la Terre et de l'Environnement, Lipides Nutrition Cancer UMR1231, Dijon, France
- INSERM, Lipides Nutrition Cancer UMR1231, Dijon, France
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, Dijon, France
| | - Sandrine Bellenger
- University of Bourgogne Franche-Comté, L'Unité de Formation Sciences de la Vie, de la Terre et de l'Environnement, Lipides Nutrition Cancer UMR1231, Dijon, France
- INSERM, Lipides Nutrition Cancer UMR1231, Dijon, France
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, Dijon, France
| | - Aymé Spor
- Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1347, Agroécologie, Dijon, France
| | - Maxime Galan
- Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1062 Centre de Biologie pour la Gestion des Populations (Institut National de la Recherche Agronomique, L'Institut de Recherche pour le Développement, Centre de coopération Internationale en Recherche Agronomique pour le Développement, Montpellier SupAgro), Montferrier-sur-Lez, France
| | - Audrey Geissler
- CellImap-Cellular Imaging Platform, Faculté de Médecine et Pharmacie, Dijon, France
| | - André Bouchot
- CellImap-Cellular Imaging Platform, Faculté de Médecine et Pharmacie, Dijon, France
| | - Dominique Dardevet
- Clermont Université, Université d'Auvergne, Unité de Nutrition Humaine, Clermont-Ferrand, France
- Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1019, Unité de Nutrition Humaine, Centre de Recherche en Nutrition Humaine Auvergne, Clermont-Ferrand, France
| | - Béatrice Morio
- Institut National de la Recherche Agronomique , Unité Mixte de Recherche 1397, CarMeN Laboratory, Lyon 1 University, INSERM U1060, Institut National des Sciences Appliquées of Lyon, Rockefeller and Charles Merieux Lyon-Sud Medical Universities, Lyon, France
| | - Patrice D Cani
- Université Catholique de Louvain, Welbio (Walloon Excellence in Life Sciences and BIOtechnology), Louvain Drug Research Institute, Metabolism and Nutrition Research Group, Brussels, Belgium
| | - Laurent Lagrost
- INSERM, Lipides Nutrition Cancer UMR1231, Dijon, France
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, Dijon, France
- L'Unité de Formation Médecine, Université de Bourgogne, Dijon, France
| | - Michel Narce
- University of Bourgogne Franche-Comté, L'Unité de Formation Sciences de la Vie, de la Terre et de l'Environnement, Lipides Nutrition Cancer UMR1231, Dijon, France
- INSERM, Lipides Nutrition Cancer UMR1231, Dijon, France
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, Dijon, France
| | - Jérôme Bellenger
- University of Bourgogne Franche-Comté, L'Unité de Formation Sciences de la Vie, de la Terre et de l'Environnement, Lipides Nutrition Cancer UMR1231, Dijon, France
- INSERM, Lipides Nutrition Cancer UMR1231, Dijon, France
- LipSTIC LabEx, Fondation de Coopération Scientifique Bourgogne-Franche Comté, Dijon, France
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Zhang YG, Xia Y, Lu R, Sun J. Inflammation and intestinal leakiness in older HIV+ individuals with fish oil treatment. Genes Dis 2018; 5:220-225. [PMID: 30320186 PMCID: PMC6176151 DOI: 10.1016/j.gendis.2018.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 07/06/2018] [Indexed: 01/27/2023] Open
Abstract
Fish oil is a natural product that has shown efficacy for managing inflammatory conditions with few side effects. There is emerging evidence that crosstalks between gut epithelial cells and immune cells contribute to chronic infectious diseases. HIV-infected (HIV+) older adults show age-related co-morbidities at a younger age than their uninfected counterparts. Persistent inflammation related to the chronic viral infection and its sequelae is thought to contribute to this disparity. However, little is known about whether fish oil reduces intestinal inflammation in HIV + patients. We measure inflammation and gut barrier function in HIV + older adults (median age = 52, N = 33), following 12 weeks of fish oil supplementation (a total daily dose of 1.6 g of omega-3 fatty acids). We showed a reduction in inflammation and gut permeability as measured by CD14, inflammatory cytokines, lipopolysaccharide, and lipopolysaccharide binding protein. The results indicate that older HIV + adults may benefit from a diet supplemented with the omega-3 fatty acids found in fish oil.
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Affiliation(s)
- Yong-Guo Zhang
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois, Chicago, IL, 60612, USA
| | - Yinglin Xia
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois, Chicago, IL, 60612, USA
| | - Rong Lu
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois, Chicago, IL, 60612, USA
| | - Jun Sun
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois, Chicago, IL, 60612, USA
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