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Abstract
Polyphenols are naturally occurring compounds in plants and they are the most abundant antioxidants in the human diet. Due to their considerable structural diversity, this largely influences their bioavailability. Since a large proportion of polyphenols remains unabsorbed along the gastrointestinal tract, they may accumulate in the large intestine, where most of them are extensively metabolized by the intestinal microbiota. The formation of bioactive polyphenol-derived metabolites may also benefit the health status of the subjects, although the mechanisms have not been delineated. This review aims to highlight the impact of polyphenols on gut health and the modes of action could be through modulation of intestinal barrier function, innate and adaptive immune response, signaling pathways, as well as the ability to modify gut microbiota composition. The review will conclude by presenting future perspective and challenges of polyphenols application in food products to be used for preventing or treating diseases.
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Affiliation(s)
- Murphy L Y Wan
- School of Biological Sciences, Faculty of Science, Kadoorie Biological Sciences Building, The University of Hong Kong, Pokfulam, Hong Kong
| | - Vanessa Anna Co
- School of Biological Sciences, Faculty of Science, Kadoorie Biological Sciences Building, The University of Hong Kong, Pokfulam, Hong Kong
| | - Hani El-Nezami
- School of Biological Sciences, Faculty of Science, Kadoorie Biological Sciences Building, The University of Hong Kong, Pokfulam, Hong Kong.,Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
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Sharma S, Tripathi P, Sharma J, Dixit A. Flavonoids modulate tight junction barrier functions in hyperglycemic human intestinal Caco-2 cells. Nutrition 2020; 78:110792. [PMID: 32473529 DOI: 10.1016/j.nut.2020.110792] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/01/2020] [Accepted: 02/27/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Diabetes mellitus is a chronic disease requiring lifelong medical attention. With hundreds of millions suffering worldwide and a rapidly rising incidence, diabetes mellitus poses a great burden on health care systems. Recent studies investigating the underlying mechanisms involved in disease development in diabetes point to the role of the dysregulation of the intestinal barrier. Hyperglycemia-mediated tight junction deformity is known to contribute to leaky gut in various metabolic disorders. The present study aimed to investigate the role of oxidative stress on intestinal epithelial tight junction (TJ) barrier functions in hyperglycemia. Because many flavonoids are known to influence the cellular redox state, exploring these flavonoids may help to understand the role of TJ barrier in hyperglycemia-mediated oxidative stress, which in turn might unfold the association of oxidative stress and dysfunction of barrier-forming TJs. METHODS Caco-2 cells were stimulated with high glucose (HG), with or without flavonoids (quercetin, morin, naringenin), for 24 h. We determined cellular viability, levels of reactive oxygen species, and mitochondrial membrane potential in flavonoids treated HG-Caco-2 cells. The levels of the proinflammatory cytokines, glucose uptake, and expression of glucose transporters were determined on flavonoids treatment. We investigated the effect of flavonoids on TJs functions by measuring transepithelial electrical resistance (a TJ integrity marker), membrane permeability using tracer compounds, and the expressions levels of TJs related molecules on hyperglycemic Caco-2 cell monolayers. RESULTS We found that high glucose treatment resulted in reduced cell viability, increased reactive oxygen species production, measurable mitochondrial dysfunction, and decreased transepithelial electrical resistance, with increased membrane permeability. Treatment with the test flavonoids produced increased cell viability and reduced glucose uptake of HG-Caco-2 cells. A concomitant decrease in reactive oxygen species production, proinflammatory cytokines, and Glut-associated genes and proteins were identified with flavonoid treatment. Flavonoids prevented derangement of TJs protein interaction and stabilized membrane permeability. CONCLUSIONS These findings indicate that flavonoids confer protection against hyperglycemia-mediated oxidative stress and enhance intestinal barrier functions by modulating underlying intracellular molecular mechanisms.
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Affiliation(s)
- Sapna Sharma
- Gene Regulation Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Prabhanshu Tripathi
- Translational Health Science, and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
| | - Jeetesh Sharma
- Gene Regulation Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Aparna Dixit
- Gene Regulation Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India.
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Peron G, Hidalgo-Liberona N, González-Domínguez R, Garcia-Aloy M, Guglielmetti S, Bernardi S, Kirkup B, Kroon PA, Cherubini A, Riso P, Andrés-Lacueva C. Exploring the Molecular Pathways Behind the Effects of Nutrients and Dietary Polyphenols on Gut Microbiota and Intestinal Permeability: A Perspective on the Potential of Metabolomics and Future Clinical Applications. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:1780-1789. [PMID: 31083905 DOI: 10.1021/acs.jafc.9b01687] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The gut microbiota is involved in the regulation of the intestinal permeability (IP), whose disruption is a frequent condition in older people and is associated with the development of several diseases. The diet can affect the gut microbiota and IP, although the molecular mechanisms involved are unclear. Metabolomics is one of the suitable approaches to study the effects of diet on gut microbiota and IP, although, up to now, the research has focused only on a few dietary components. The aim here was to review the most recent literature concerning the application of metabolomics to the study of the diet-induced alterations of gut microbiota and the effects on IP, with a particular focus on the molecular pathways involved. An additional aim was to give a perspective on the future research involving dietary polyphenols, because despite their potential use in the management of increased IP, few studies have been reported to date.
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Affiliation(s)
- Gregorio Peron
- Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA), Faculty of Pharmacy and Food Sciences , University of Barcelona , 08028 Barcelona , Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes) , Instituto de Salud Carlos III , 08028 Barcelona , Spain
| | - Nicole Hidalgo-Liberona
- Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA), Faculty of Pharmacy and Food Sciences , University of Barcelona , 08028 Barcelona , Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes) , Instituto de Salud Carlos III , 08028 Barcelona , Spain
| | - Raúl González-Domínguez
- Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA), Faculty of Pharmacy and Food Sciences , University of Barcelona , 08028 Barcelona , Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes) , Instituto de Salud Carlos III , 08028 Barcelona , Spain
| | - Mar Garcia-Aloy
- Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA), Faculty of Pharmacy and Food Sciences , University of Barcelona , 08028 Barcelona , Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes) , Instituto de Salud Carlos III , 08028 Barcelona , Spain
| | - Simone Guglielmetti
- Department of Food, Environmental and Nutritional Sciences (DeFENS) , Università degli Studi di Milano , 20122 Milan , Italy
| | - Stefano Bernardi
- Department of Food, Environmental and Nutritional Sciences (DeFENS) , Università degli Studi di Milano , 20122 Milan , Italy
| | - Benjamin Kirkup
- Quadram Institute Bioscience , Norwich Research Park, Norwich NR4 7UQ , United Kingdom
| | - Paul Antony Kroon
- Quadram Institute Bioscience , Norwich Research Park, Norwich NR4 7UQ , United Kingdom
| | - Antonio Cherubini
- Geriatria, Accettazione Geriatrica e Centro di Ricerca per l'Invecchiamento , Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS)-l'Istituto Nazionale Ricovero e Cura Anziani (INRCA) , 60127 Ancona , Italy
| | - Patrizia Riso
- Department of Food, Environmental and Nutritional Sciences (DeFENS) , Università degli Studi di Milano , 20122 Milan , Italy
| | - Cristina Andrés-Lacueva
- Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA), Faculty of Pharmacy and Food Sciences , University of Barcelona , 08028 Barcelona , Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes) , Instituto de Salud Carlos III , 08028 Barcelona , Spain
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Bernardi S, Del Bo' C, Marino M, Gargari G, Cherubini A, Andrés-Lacueva C, Hidalgo-Liberona N, Peron G, González-Dominguez R, Kroon P, Kirkup B, Porrini M, Guglielmetti S, Riso P. Polyphenols and Intestinal Permeability: Rationale and Future Perspectives. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:1816-1829. [PMID: 31265272 DOI: 10.1021/acs.jafc.9b02283] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Increasing evidence links intestinal permeability (IP), a feature of the intestinal barrier, to several pathological or dysfunctional conditions. Several host and environmental factors, including dietary factors, can affect the maintenance of normal IP. In this regard, food bioactives, such as polyphenols, have been proposed as potential IP modulators, even if the mechanisms involved are not yet fully elucidated. The aim of the present paper is to provide a short overview of the main evidence from in vitro and in vivo studies supporting the role of polyphenols in modulating IP and briefly discuss future perspectives in this research area.
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Affiliation(s)
- Stefano Bernardi
- Department of Food, Environmental and Nutritional Sciences (DeFENS) , Università degli Studi di Milano , 20122 Milan , Italy
| | - Cristian Del Bo'
- Department of Food, Environmental and Nutritional Sciences (DeFENS) , Università degli Studi di Milano , 20122 Milan , Italy
| | - Mirko Marino
- Department of Food, Environmental and Nutritional Sciences (DeFENS) , Università degli Studi di Milano , 20122 Milan , Italy
| | - Giorgio Gargari
- Department of Food, Environmental and Nutritional Sciences (DeFENS) , Università degli Studi di Milano , 20122 Milan , Italy
| | - Antonio Cherubini
- Geriatria, Accettazione Geriatrica e Centro di Ricerca per l'Invecchiamento , Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS)-l'Istituto Nazionale Ricovero e Cura Anziani (INRCA) , 60127 Ancona , Italy
| | - Cristina Andrés-Lacueva
- Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA), Faculty of Pharmacy and Food Sciences , University of Barcelona , 08028 Barcelona , Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes) , Instituto de Salud Carlos III , 08028 Barcelona , Spain
| | - Nicole Hidalgo-Liberona
- Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA), Faculty of Pharmacy and Food Sciences , University of Barcelona , 08028 Barcelona , Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes) , Instituto de Salud Carlos III , 08028 Barcelona , Spain
| | - Gregorio Peron
- Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA), Faculty of Pharmacy and Food Sciences , University of Barcelona , 08028 Barcelona , Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes) , Instituto de Salud Carlos III , 08028 Barcelona , Spain
| | - Raúl González-Dominguez
- Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Technology Reference Net (XaRTA), Nutrition and Food Safety Research Institute (INSA), Faculty of Pharmacy and Food Sciences , University of Barcelona , 08028 Barcelona , Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERfes) , Instituto de Salud Carlos III , 08028 Barcelona , Spain
| | - Paul Kroon
- Quadram Institute Bioscience , Norwich Research Park, Norwich NR4 7UQ , United Kingdom
| | - Benjamin Kirkup
- Quadram Institute Bioscience , Norwich Research Park, Norwich NR4 7UQ , United Kingdom
| | - Marisa Porrini
- Department of Food, Environmental and Nutritional Sciences (DeFENS) , Università degli Studi di Milano , 20122 Milan , Italy
| | - Simone Guglielmetti
- Department of Food, Environmental and Nutritional Sciences (DeFENS) , Università degli Studi di Milano , 20122 Milan , Italy
| | - Patrizia Riso
- Department of Food, Environmental and Nutritional Sciences (DeFENS) , Università degli Studi di Milano , 20122 Milan , Italy
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Probiotic Propionibacterium freudenreichii requires SlpB protein to mitigate mucositis induced by chemotherapy. Oncotarget 2019; 10:7198-7219. [PMID: 31921383 PMCID: PMC6944450 DOI: 10.18632/oncotarget.27319] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 10/21/2019] [Indexed: 02/07/2023] Open
Abstract
Propionibacterium freudenreichii CIRM-BIA 129 (P. freudenreichii wild type, WT) is a probiotic bacterium, which exerts immunomodulatory effects. This strain possesses extractable surface proteins, including SlpB, which are involved in anti-inflammatory effect and in adhesion to epithelial cells. We decided to investigate the impact of slpB gene mutation on immunomodulation in vitro and in vivo. In an in vitro assay, P. freudenreichii WT reduced expression of IL-8 (p<0.0001) and TNF-α (p<0.0001) cytokines in LPS-stimulated HT-29 cells. P. freudenreichii ΔslpB, lacking the SlpB protein, failed to do so. Subsequently, both strains were investigated in vivo in a 5-FU-induced mucositis mice model. Mucositis is a common side effect of cytotoxic chemotherapy with 5-FU, characterized by mucosal injury, inflammation, diarrhea, and weight loss. The WT strain prevented weight loss, reduced inflammation and consequently histopathological scores. Furthermore, it regulated key markers, including Claudin-1 (cld1, p<0.0005) and IL-17a (Il17a, p<0.0001) genes, as well as IL-12 (p<0.0001) and IL-1β (p<0.0429) cytokines levels. Mutant strain displayed opposite regulatory effect on cld1 expression and on IL-12 levels. This work emphasizes the importance of SlpB in P. freudenreichii ability to reduce mucositis inflammation. It opens perspectives for the development of probiotic products to decrease side effects of chemotherapy using GRAS bacteria with immunomodulatory surface protein properties.
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Cires MJ, Navarrete P, Pastene E, Carrasco-Pozo C, Valenzuela R, Medina DA, Andriamihaja M, Beaumont M, Blachier F, Gotteland M. Protective Effect of an Avocado Peel Polyphenolic Extract Rich in Proanthocyanidins on the Alterations of Colonic Homeostasis Induced by a High-Protein Diet. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11616-11626. [PMID: 31542929 DOI: 10.1021/acs.jafc.9b03905] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Avocado peel, a byproduct from the avocado pulp industry, is a promising source of polyphenolic compounds. We evaluated the effect of a proanthocyanidin-rich avocado peel polyphenol extract (AvPPE) on the composition and metabolic activity of human fecal microbiota cultured for 24 h in a bioreactor in the presence of high protein (HP) amounts and the effect of the resulting culture supernatants (CSs) on HT-29Glc-/+ and Caco-2 cells. AvPPE decreased the HP-induced production of ammonia, H2S, propionate, and isovalerate and increased that of indole and butyrate. Microbiota composition was marginally affected by HP, whileAvPPE increased the microorganisms/abundance of phylum Actinobacteria, families Coriobacteriaceae and Ruminococcaceae, and genus Faecalibacterium. AvPPE failed to prevent the HP-induced decrease of HT-29Glc-/+ cell viability and energy efficiency but prevented the HP-induced alterations of barrier function in Caco-2 cells. Additionally, the genotoxic effect of the CSs upon HT-29Glc-/+ was attenuated by AvPPE. Therefore, AvPPE may be considered as a promising product for improving colonic homeostasis.
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Affiliation(s)
- María José Cires
- Department of Nutrition, Faculty of Medicine , University of Chile , Santiago 8380453 , Chile
| | - Paola Navarrete
- Laboratory of Microbiology and Probiotics, Institute of Nutrition and Food Technology (INTA) , University of Chile , Santiago 7830490 , Chile
- Millennium Nucleus in the Biology of Intestinal Microbiota , Santiago , Chile
| | - Edgar Pastene
- Laboratory of Pharmacognosy, Faculty of Pharmacy , University of Concepción , Concepción 4030000 , Chile
- Laboratorio de Sı́ntesis y Biotransformación de Productos Naturales, Departamento de Ciencias Básicas, Facultad de Ciencias , Universidad del Bı́o-Bı́o , Chillán 3780000 , Chile
| | - Catalina Carrasco-Pozo
- Department of Nutrition, Faculty of Medicine , University of Chile , Santiago 8380453 , Chile
- Discovery Biology, Griffith Institute for Drug Discovery , Griffith University , Nathan , Queensland 4111 , Australia
| | - Rodrigo Valenzuela
- Department of Nutrition, Faculty of Medicine , University of Chile , Santiago 8380453 , Chile
| | - Daniel A Medina
- Laboratorio de Biotecnología Aplicada, Facultad de Medicina Veterinaria , Universidad San Sebastián , Lago Panguipulli 1390 , Puerto Montt 5480000 , Chile
| | | | - Martin Beaumont
- UMR PNCA, AgroParisTech, INRA, Université Paris-Saclay , Paris 75005 , France
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT , Toulouse 31326 , France
| | - François Blachier
- UMR PNCA, AgroParisTech, INRA, Université Paris-Saclay , Paris 75005 , France
| | - Martin Gotteland
- Department of Nutrition, Faculty of Medicine , University of Chile , Santiago 8380453 , Chile
- Laboratory of Microbiology and Probiotics, Institute of Nutrition and Food Technology (INTA) , University of Chile , Santiago 7830490 , Chile
- Millennium Nucleus in the Biology of Intestinal Microbiota , Santiago , Chile
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Effects of resveratrol on intestinal oxidative status and inflammation in heat-stressed rats. J Therm Biol 2019; 85:102415. [PMID: 31657756 DOI: 10.1016/j.jtherbio.2019.102415] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/07/2019] [Accepted: 09/09/2019] [Indexed: 02/07/2023]
Abstract
Heat stress, experienced by humans and animals under high ambient temperatures, is known to induce oxidative stress and inflammation, which endangers human health as well as animal welfare and production. The gastrointestinal tract is predominantly responsive to heat stress and compromised intestinal functions can contribute to multi-organ injury under heat environment. Resveratrol (RSV) has significant antioxidant and anti-inflammatory activities. The aim of this study was to investigate the potential effects of RSV on intestinal function (digestion and barrier), oxidative stress and inflammation in heat-stressed rats. Male Sprague-Dawley rats were orally fed with 100 mg RSV/kg body weight/day prior to daily heat stress (40 °C per day for 1.5 h) exposure for 3 consecutive days. The results showed that RSV reversed the increased serum cortisol level and diamine oxidase activity, the altered jejunal morphology, the decreased jejunal disaccharidase activities, the elevated malondialdehyde and tumor necrosis factor alpha concentrations and antioxidant enzymes activities in the jejunum, as well as the increased jejunal mRNA expression of toll-like receptor 4, cytokines, antioxidant enzymes and tight junction proteins in heat-stressed rats, to various degrees. In conclusion, RSV could alleviate intestinal injury and dysfunctions by improving oxidative status and suppressing inflammation in heat-stressed rats.
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Nunes C, Freitas V, Almeida L, Laranjinha J. Red wine extract preserves tight junctions in intestinal epithelial cells under inflammatory conditions: implications for intestinal inflammation. Food Funct 2019; 10:1364-1374. [PMID: 30735221 DOI: 10.1039/c8fo02469c] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The altered expression and subcellular distribution of tight junction (TJ) proteins, leading to a dysfunctional intestinal barrier, is a key mechanistic feature of inflammatory bowel disease (IBD). Therefore, increasing the integrity of the intestinal barrier by manipulating the TJ may constitute an innovative and effective therapeutic strategy in IBD. In this context, recent studies showed that dietary polyphenols are able to protect the intestinal TJ barrier integrity. Here, using a cellular model of intestinal inflammation, consisting of cytokine-stimulated HT-29 colon epithelial cells, we show that a polyphenolic extract obtained from Portuguese red wine (RWE) decreased the paracellular permeability across the cell monolayer compared with the control cells, even in the presence of pro-inflammatory cytokines. The beneficial effect of RWE was exerted at three complementary levels: (1) by promoting a significant increase of the mRNA of key barrier-forming TJ proteins, including occludin, claudin-5 and zonnula occludens (ZO)-1 above the levels observed in the control cells; (2) by preventing the decrease in the expression of these proteins under inflammatory conditions and (3) by averting the increase in claudin-2 mRNA, a channel-forming TJ protein induced by pro-inflammatory cytokines. Taken together, these results strongly suggest that polyphenols presented and consumed in red wine as a mixture can reinforce and protect the intestinal barrier against inflammatory stimulus by affecting the TJ protein expression and, thus, without the need for purifying individual compounds, might represent a readily available therapeutic intervention against IBD and intestinal inflammation.
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Affiliation(s)
- Carla Nunes
- Center for Neurosciences and Cell Biology and Faculty of Pharmacy, University of Coimbra, Health Sciences Campus, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
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Zhou Z, Bian C, Luo Z, Guille C, Ogunrinde E, Wu J, Zhao M, Fitting S, Kamen DL, Oates JC, Gilkeson G, Jiang W. Progesterone decreases gut permeability through upregulating occludin expression in primary human gut tissues and Caco-2 cells. Sci Rep 2019; 9:8367. [PMID: 31182728 PMCID: PMC6558054 DOI: 10.1038/s41598-019-44448-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 05/14/2019] [Indexed: 02/06/2023] Open
Abstract
Progesterone plays a protective role in preventing inflammation and preterm delivery during pregnancy. However, the mechanism involved is unknown. Microbial product translocation from a permeable mucosa is demonstrated as a driver of inflammation. To study the mechanism of the protective role of progesterone during pregnancy, we investigated the effect of physiologic concentrations of progesterone on tight junction protein occludin expression and human gut permeability in vitro and systemic microbial translocation in pregnant women in vivo. Plasma bacterial lipopolysaccharide (LPS), a representative marker of in vivo systemic microbial translocation was measured. We found that plasma LPS levels were significantly decreased during 24 to 28 weeks of gestation compared to 8 to 12 weeks of gestation. Moreover, plasma LPS levels were negatively correlated with plasma progesterone levels but positively correlated with plasma tumor necrosis factor-alpha (TNF-α) levels at 8 to 12 weeks of gestation but not at 24 to 28 weeks of gestation. Progesterone treatment increased intestinal trans-epithelial electrical resistance (TEER) in primary human colon tissues and Caco-2 cells in vitro through upregulating tight junction protein occludin expression. Furthermore, progesterone exhibited an inhibitory effect on nuclear factor kappa B (NF-κB) activation following LPS stimulation in Caco-2 cells. These results reveal a novel mechanism that progesterone may play an important role in decreasing mucosal permeability, systemic microbial translocation, and inflammation during pregnancy.
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Affiliation(s)
- Zejun Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Chuanxiu Bian
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, 212013, China
| | - Zhenwu Luo
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Constance Guille
- Department of Psychiatry and Behavioral Sciences, College of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
- Department of Obstetrics and Gynecology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Elizabeth Ogunrinde
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Jiapeng Wu
- Biochemistry, Biophysics and Molecular Biology, Whitman College, Walla Walla, WA, 99362, USA
| | - Min Zhao
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
- Department of Biochemistry, Basic Medical College, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Sylvia Fitting
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Diane L Kamen
- Medical Research Service, Ralph H. Johnson VAMC, Medical University of South Carolina, Charleston, SC, 29403, USA
| | - Jim C Oates
- Medical Research Service, Ralph H. Johnson VAMC, Medical University of South Carolina, Charleston, SC, 29403, USA
- Division of Rheumatology, Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Gary Gilkeson
- Medical Research Service, Ralph H. Johnson VAMC, Medical University of South Carolina, Charleston, SC, 29403, USA.
- Division of Rheumatology, Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA.
| | - Wei Jiang
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA.
- Division of Infectious Diseases, Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA.
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Yang C, Cui MH. NSAID-induced small intestinal mucosal injury: Mechanism, prevention and treatment. Shijie Huaren Xiaohua Zazhi 2019; 27:347-351. [DOI: 10.11569/wcjd.v27.i6.347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) are widely used in clinical practice. It was well known in the past that the main side effect of NSAIDs was gastric mucosal injury. However, with the advancement of the diagnostic and therapeutic technology, NSAIDs have been found to cause much more severe damage to the small intestinal mucosa than we expected in recent years. Therefore, it is of great significance to elucidate the mechanism for NSAIDs to cause small intestinal mucosal injury to aid the clinical prevention and treatment of this condition. This paper aims to review the progress in the research of the mechanism, prevention, and treatment of NSAID-induced small intestinal mucosal injury.
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Affiliation(s)
- Cheng Yang
- Department of Gastroenterology, Peking University Aerospace School of Clinical Medicine, Beijing 100049, China
| | - Mei-Hua Cui
- Department of Gastroenterology, Peking University Aerospace School of Clinical Medicine, Beijing 100049, China
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Resveratrol enhances the protective effects of JBP485 against indomethacin-induced rat intestinal damage in vivo and vitro through up-regulating oligopeptide transporter 1 (Pept1). Biomed Pharmacother 2019; 111:251-261. [DOI: 10.1016/j.biopha.2018.12.084] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 12/17/2018] [Accepted: 12/17/2018] [Indexed: 12/27/2022] Open
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Liang N, Kitts DD. Chlorogenic Acid (CGA) Isomers Alleviate Interleukin 8 (IL-8) Production in Caco-2 Cells by Decreasing Phosphorylation of p38 and Increasing Cell Integrity. Int J Mol Sci 2018; 19:ijms19123873. [PMID: 30518116 PMCID: PMC6320834 DOI: 10.3390/ijms19123873] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 11/27/2018] [Accepted: 11/30/2018] [Indexed: 12/12/2022] Open
Abstract
The objective of this study was to determine the effect of six chlorogenic acid (CGA) isomers known to be present in coffee and other plant foods on modulating the inflammatory response induced by pro-inflammatory cytokines in the Caco-2 human intestinal epithelial cell line. Compared to caffeoylquinic acids (CQA), dicaffeoylquinic acids (DiCQA) had significantly stronger (p < 0.05) capacities to reduce phosphorylation of one of mitogen-activated protein kinases (MAPK) cascades, namely p38. Compared to the control, CQA isomers treatment resulted in around 50% reduction in an interleukin-8 (IL-8) secretion, whereas DiCQA, at the same concentration, resulted in a 90% reduction in IL-8 secretion, compared to the control cells. CGA isomer treatment also showed a significant effect (p < 0.05) on the up-regulation of NFκB subunit p65 nuclear translocation by more than 1.5 times, compared to the control. We concluded that CGA isomers exert anti-inflammatory activity in a mixture of interferon gamma (IFNγ) and phorbol myristate acetate (PMA)-challenged Caco-2 cells, by decreasing the phosphorylation of p38 cascade and up-regulating NFκB signaling.
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Affiliation(s)
- Ningjian Liang
- Food, Nutrition, and Health Program, Faculty of Land and Food Systems, The University of British Columbia, 2205 East Mall, Vancouver, BC V6T 1Z4, Canada.
| | - David D Kitts
- Food, Nutrition, and Health Program, Faculty of Land and Food Systems, The University of British Columbia, 2205 East Mall, Vancouver, BC V6T 1Z4, Canada.
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63
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Colucci R, Pellegrini C, Fornai M, Tirotta E, Antonioli L, Renzulli C, Ghelardi E, Piccoli E, Gentile D, Benvenuti L, Natale G, Fulceri F, Palazón-Riquelme P, López-Castejón G, Blandizzi C, Scarpignato C. Pathophysiology of NSAID-Associated Intestinal Lesions in the Rat: Luminal Bacteria and Mucosal Inflammation as Targets for Prevention. Front Pharmacol 2018; 9:1340. [PMID: 30555323 PMCID: PMC6281992 DOI: 10.3389/fphar.2018.01340] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 10/31/2018] [Indexed: 12/11/2022] Open
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) can damage the small intestine, mainly through an involvement of enteric bacteria. This study examined the pathophysiology of NSAID-associated intestinal lesions in a rat model of diclofenac-enteropathy and evaluated the effect of rifaximin on small bowel damage. Enteropathy was induced in 40-week old male rats by intragastric diclofenac (4 mg/kg BID, 14 days). Rifaximin (delayed release formulation) was administered (50 mg/kg BID) 1 h before the NSAID. At the end of treatments, parameters dealing with ileal damage, inflammation, barrier integrity, microbiota composition, and TLR-NF-κB-inflammasome pathway were evaluated. In addition, the modulating effect of rifaximin on NLRP3 inflammasome was tested in an in vitro cell system. Diclofenac induced intestinal damage and inflammation, triggering an increase in tissue concentrations of tumor necrosis factor and interleukin-1β, higher expression of TLR-2 and TLR-4, MyD88, NF-κB and activation of caspase-1. In addition, the NSAID decreased ileal occludin expression and provoked a shift of bacterial phyla toward an increase in Proteobacteria and Bacteroidetes abundance. All these changes were counterbalanced by rifaximin co-administration. This drug was also capable of increasing the proportion of Lactobacilli, a genus depleted by the NSAID. In LPS-primed THP-1 cells stimulated by nigericin (a model to study the NLRP3 inflammasome), rifaximin reduced IL-1β production in a concentration-dependent fashion, this effect being associated with inhibition of the up-stream caspase-1 activation. In conclusion, diclofenac induced ileal mucosal lesions, driving inflammatory pathways and microbiota changes. In conclusion, rifaximin prevents diclofenac-induced enteropathy through both anti-bacterial and anti-inflammatory activities.
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Affiliation(s)
- Rocchina Colucci
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua, Italy
| | - Carolina Pellegrini
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Matteo Fornai
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Erika Tirotta
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Luca Antonioli
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Cecilia Renzulli
- Reasearch & Development Department, Alfasigma SpA, Bologna, Italy
| | - Emilia Ghelardi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Elena Piccoli
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Daniela Gentile
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Laura Benvenuti
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Gianfranco Natale
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Federica Fulceri
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Pablo Palazón-Riquelme
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom
| | - Gloria López-Castejón
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom
| | - Corrado Blandizzi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Carmelo Scarpignato
- Clinical Pharmacology & Digestive Pathophysiology Unit, Department of Clinical & Experimental Medicine, University of Parma, Parma, Italy
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64
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Developing a link between toxicants, claudins and neural tube defects. Reprod Toxicol 2018; 81:155-167. [DOI: 10.1016/j.reprotox.2018.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/27/2018] [Accepted: 08/02/2018] [Indexed: 02/06/2023]
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65
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Putt KK, Pei R, White HM, Bolling BW. Yogurt inhibits intestinal barrier dysfunction in Caco-2 cells by increasing tight junctions. Food Funct 2018; 8:406-414. [PMID: 28091645 DOI: 10.1039/c6fo01592a] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Chronic inflammation disrupts intestinal barrier function and may contribute to the pathology of obesity and other diseases. The goal of this study was to determine the mechanism by which yogurt improves intestinal barrier function. Caco-2 cells were differentiated on Transwell inserts and used as a model of intestinal barrier permeability. Transepithelial electrical resistance (TEER) and flux of 4 kDa fluorescein isothiocyanate-dextran (FD) and lucifer yellow (LY) were used as indicators of monolayer integrity and paracellular permeability. Immunofluorescence microscopy and real time quantitative polymerase chain were used to assess the localization and expression of tight junction proteins known to regulate intestinal permeability. Differentiated cells were treated with a vehicle control (C), inflammatory stimulus (I) (interleukin-1β, tumor necrosis factor-α, interferon-γ, and lipopolysaccharide), or I and 0.03 g mL-1 yogurt (IY). After 48 h, I reduced Caco-2 TEER by 46%, while IY reduced TEER by only 27% (P < 0.0001). FD and LY flux reflected TEER measurements, with IY having significantly lower permeability than I (P < 0.05). Yogurt also improved localization of occludin and zona occludens protein 1 (ZO-1) at tight junctions of differentiated Caco-2 cells. IY increased Caco-2 claudin-1, ZO-1, and occludin mRNA relative to I (P < 0.05). In a simulated digestion, the barrier-improving bioactivity of yogurt was maintained through the gastric phase, but was reduced to the level of I after intestinal digestion (P < 0.05). Therefore, yogurt improved inflammation-disrupted intestinal barrier function in a Caco-2 model by increasing tight junctions, but the beneficial effect on barrier function was reduced at latter stages of digestion.
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Affiliation(s)
- Kelley K Putt
- Department of Food Science, University of Wisconsin-Madison, 1605 Linden Dr., Madison, WI 53706, USA.
| | - Ruisong Pei
- Department of Food Science, University of Wisconsin-Madison, 1605 Linden Dr., Madison, WI 53706, USA.
| | - Heather M White
- Department of Animal Science, University of Wisconsin-Madison, 1675 Observatory Drive, Madison, WI 53706, USA
| | - Bradley W Bolling
- Department of Food Science, University of Wisconsin-Madison, 1605 Linden Dr., Madison, WI 53706, USA.
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66
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Monk JM, Wu W, McGillis LH, Wellings HR, Hutchinson AL, Liddle DM, Graf D, Robinson LE, Power KA. Chickpea supplementation prior to colitis onset reduces inflammation in dextran sodium sulfate-treated C57Bl/6 male mice. Appl Physiol Nutr Metab 2018; 43:893-901. [PMID: 29522694 DOI: 10.1139/apnm-2017-0689] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The potential for a chickpea-supplemented diet (rich in fermentable nondigestible carbohydrates and phenolic compounds) to modify the colonic microenvironment and attenuate the severity of acute colonic inflammation was investigated. C57Bl/6 male mice were fed a control basal diet or basal diet supplemented with 20% cooked chickpea flour for 3 weeks prior to acute colitis onset induced by 7-day exposure to dextran sodium sulfate (DSS; 2% w/v in drinking water) and colon and serum levels of inflammatory mediators were assessed. Despite an equal degree of DSS-induced epithelial barrier histological damage and clinical symptoms between dietary groups, biomarkers of the ensuing inflammatory response were attenuated by chickpea pre-feeding, including reduced colon tissue activation of nuclear factor kappa B and inflammatory cytokine production (tumor necrosis factor alpha and interleukin (IL)-18). Additionally, colon protein expression of anti-inflammatory (IL-10) and epithelial repair (IL-22 and IL-27) cytokines were increased by chickpea pre-feeding. Furthermore, during acute colitis, chickpea pre-feeding increased markers of enhanced colonic function, including Relmβ and IgA gene expression. Collectively, chickpea pre-feeding modulated the baseline function of the colonic microenvironment, whereby upon induction of acute colitis, the severity of the inflammatory response was attenuated.
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Affiliation(s)
- Jennifer M Monk
- a Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON N1G 5C9, Canada
- b Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Wenqing Wu
- a Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON N1G 5C9, Canada
| | - Laurel H McGillis
- b Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Hannah R Wellings
- b Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Amber L Hutchinson
- b Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Danyelle M Liddle
- b Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Daniela Graf
- a Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON N1G 5C9, Canada
- b Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Lindsay E Robinson
- b Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Krista A Power
- a Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON N1G 5C9, Canada
- b Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
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67
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A combination of xylooligosaccharides and a polyphenol blend affect microbial composition and activity in the distal colon exerting immunomodulating properties on human cells. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.05.053] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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68
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Yamada M, Takahashi N, Matsuda Y, Sato K, Yokoji M, Sulijaya B, Maekawa T, Ushiki T, Mikami Y, Hayatsu M, Mizutani Y, Kishino S, Ogawa J, Arita M, Tabeta K, Maeda T, Yamazaki K. A bacterial metabolite ameliorates periodontal pathogen-induced gingival epithelial barrier disruption via GPR40 signaling. Sci Rep 2018; 8:9008. [PMID: 29899364 PMCID: PMC5998053 DOI: 10.1038/s41598-018-27408-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 06/04/2018] [Indexed: 01/15/2023] Open
Abstract
Several studies have demonstrated the remarkable properties of microbiota and their metabolites in the pathogenesis of several inflammatory diseases. 10-Hydroxy-cis-12-octadecenoic acid (HYA), a bioactive metabolite generated by probiotic microorganisms during the process of fatty acid metabolism, has been studied for its protective effects against epithelial barrier impairment in the intestines. Herein, we examined the effect of HYA on gingival epithelial barrier function and its possible application for the prevention and treatment of periodontal disease. We found that GPR40, a fatty acid receptor, was expressed on gingival epithelial cells; activation of GPR40 by HYA significantly inhibited barrier impairment induced by Porphyromonas gingivalis, a representative periodontopathic bacterium. The degradation of E-cadherin and beta-catenin, basic components of the epithelial barrier, was prevented in a GPR40-dependent manner in vitro. Oral inoculation of HYA in a mouse experimental periodontitis model suppressed the bacteria-induced degradation of E-cadherin and subsequent inflammatory cytokine production in the gingival tissue. Collectively, these results suggest that HYA exerts a protective function, through GPR40 signaling, against periodontopathic bacteria-induced gingival epithelial barrier impairment and contributes to the suppression of inflammatory responses in periodontal diseases.
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Affiliation(s)
- Miki Yamada
- Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Naoki Takahashi
- Research Center for Advanced Oral Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
| | - Yumi Matsuda
- Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Keisuke Sato
- Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Mai Yokoji
- Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Benso Sulijaya
- Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Tomoki Maekawa
- Research Center for Advanced Oral Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Tatsuo Ushiki
- Division of Microscopic Anatomy and Bio-imaging, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yoshikazu Mikami
- Division of Microscopic Anatomy and Bio-imaging, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Manabu Hayatsu
- Division of Microscopic Anatomy and Bio-imaging, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yusuke Mizutani
- Division of Microscopic Anatomy and Bio-imaging, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Shigenobu Kishino
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Jun Ogawa
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Makoto Arita
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Koichi Tabeta
- Division of Periodontology, Department of Oral Biological Science, Niigata University Faculty of Dentistry, Niigata, Japan
| | - Takeyasu Maeda
- Research Center for Advanced Oral Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kazuhisa Yamazaki
- Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
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69
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Oteiza P, Fraga C, Mills D, Taft D. Flavonoids and the gastrointestinal tract: Local and systemic effects. Mol Aspects Med 2018; 61:41-49. [DOI: 10.1016/j.mam.2018.01.001] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/04/2018] [Accepted: 01/05/2018] [Indexed: 12/25/2022]
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70
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Manabe A, Furukawa C, Endo S, Marunaka K, Nishiyama T, Fujii N, Tabuchi Y, Matsunaga T, Ikari A. Chlorpheniramine Increases Paracellular Permeability to Marker Fluorescein Lucifer Yellow Mediated by Internalization of Occludin in Murine Colonic Epithelial Cells. Biol Pharm Bull 2018; 40:1299-1305. [PMID: 28769011 DOI: 10.1248/bpb.b17-00244] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ions, small molecules, and drugs are absorbed in the intestinal epithelium mediated by transcellular and paracellular pathways. The function of various transporters expressing in the apical and basolateral membranes of intestinal epithelial cells has been well characterized. In contrast, claudins and occludin, components of the tight junctions (TJs), determine the paracellular permeability to ions and low molecular weight compounds, but the properties for permeability has not been clarified in detail. In the present study, we examined the effects of anti-histamine drugs, chlorpheniramine and diphenhydramine, on transepithelial electrical resistance (TER) and permeability to lucifer yellow (LY), a marker of paracellular permeability, using murine colonic MCE301 cells. Chlorpheniramine significantly decreased the steady state of TER and increased permeability to LY, whereas the effects of diphenhydramine were not significant. The mRNAs of occludin and claudin-1-claudin-8 except for claudin-5 were expressed in MCE301 cells. Both anti-histamine drugs did not change solubility of claudins to 0.5% Triton X-100 solution. In contrast, the detergent solubility and intracellular localization of occludin were significantly increased by chlorpheniramine. These results indicate that occludin is dissociated from the TJs by chlorpheniramine. Chlorpheniramine increased protein phosphatase-2A (PP-2A) activity, which was inhibited by cantharidin, a potent PP-2A inhibitor. Furthermore, the changes of TER, permeability to LY, and de-phosphorylation and tight junctional localization of occludin caused by chlorpheniramine were recovered by cantharidin. These results suggest that chlorpheniramine could increase paracellular permeability to low molecular weight compounds mediated by the activation of PP-2A and internalization of occludin in the colonic epithelial cells.
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Affiliation(s)
- Aya Manabe
- From the Laboratory of Biochemistry, Department of Biopharmaceutical Sciences, Gifu Pharmaceutical University
| | - Chisa Furukawa
- From the Laboratory of Biochemistry, Department of Biopharmaceutical Sciences, Gifu Pharmaceutical University
| | - Satoshi Endo
- From the Laboratory of Biochemistry, Department of Biopharmaceutical Sciences, Gifu Pharmaceutical University
| | - Kana Marunaka
- From the Laboratory of Biochemistry, Department of Biopharmaceutical Sciences, Gifu Pharmaceutical University
| | - Tsubasa Nishiyama
- From the Laboratory of Biochemistry, Department of Biopharmaceutical Sciences, Gifu Pharmaceutical University
| | - Naoko Fujii
- From the Laboratory of Biochemistry, Department of Biopharmaceutical Sciences, Gifu Pharmaceutical University
| | | | - Toshiyuki Matsunaga
- From the Laboratory of Biochemistry, Department of Biopharmaceutical Sciences, Gifu Pharmaceutical University
| | - Akira Ikari
- From the Laboratory of Biochemistry, Department of Biopharmaceutical Sciences, Gifu Pharmaceutical University
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71
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Investigation of the influence of high glucose on molecular and genetic responses: an in vitro study using a human intestine model. GENES AND NUTRITION 2018; 13:11. [PMID: 29736189 PMCID: PMC5928582 DOI: 10.1186/s12263-018-0602-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 04/06/2018] [Indexed: 01/09/2023]
Abstract
Background Dietary glucose consumption has increased worldwide. Long-term high glucose intake contributes to the development of obesity and type 2 diabetes mellitus (T2DM). Obese people tend to eat glucose-containing foods, which can lead to an addiction to glucose, increased glucose levels in the blood and intestine lumen, and exposure of intestinal enterocytes to high dietary glucose. Recent studies have documented a role for enterocytes in glucose sensing. However, the molecular and genetic relationship between high glucose levels and intestinal enterocytes has not been determined. We aimed to identify relevant target genes and molecular pathways regulated by high glucose in a well-established in vitro epithelial cell culture model of the human intestinal system (Caco-2 cells). Methods Cells were grown in a medium containing 5.5 and 25 mM glucose in a bicameral culture system for 21 days to mimic the human intestine. Transepithelial electrical resistance was used to control monolayer formation and polarization of the cells. Total RNA was isolated, and genome-wide mRNA expression profiles were determined. Molecular pathways were analyzed using the DAVID bioinformatics program. Gene expression levels were confirmed by quantitative reverse transcription polymerase chain reaction (RT-qPCR). Results Microarray gene expression data demonstrated that 679 genes (297 upregulated, 382 downregulated) were affected by high glucose treatment. Bioinformatics analysis indicated that intracellular protein export (p = 0.0069) and ubiquitin-mediated proteolysis (p = 0.024) pathways were induced, whereas glycolysis/gluconeogenesis (p < 0.0001), pentose phosphate (p = 0.0043), and fructose-mannose metabolism (p = 0.013) pathways were downregulated, in response to high glucose. Microarray analysis of gene expression showed that high glucose significantly induced mRNA expression levels of thioredoxin-interacting protein (TXNIP, p = 0.0001) and lipocalin 15 (LCN15, p = 0.0016) and reduced those of ATP-binding cassette, sub-family A member 1 (ABCA1, p = 0.0004), and iroquois homeobox 3 (IRX3, p = 0.0001). Conclusions To our knowledge, this is the first investigation of high glucose-regulated molecular responses in an intestinal enterocyte model. Our findings identify new target genes that may be important in the intestinal glucose absorption and metabolism during high glucose consumption.
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72
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Lagha AB, Groeger S, Meyle J, Grenier D. Green tea polyphenols enhance gingival keratinocyte integrity and protect against invasion by Porphyromonas gingivalis. Pathog Dis 2018; 76:4961135. [DOI: 10.1093/femspd/fty030] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 04/03/2018] [Indexed: 12/15/2022] Open
Affiliation(s)
- Amel Ben Lagha
- Oral Ecology Research Group, Faculty of Dentistry, Université Laval, 2420 rue de la Terrasse, Quebec City, QC G1V 0A6, Canada
| | - Sabine Groeger
- Department of Periodontology, Justus-Liebig-University of Giessen, Schlangenzahl 14, Giessen 35392, Germany
| | - Joerg Meyle
- Department of Periodontology, Justus-Liebig-University of Giessen, Schlangenzahl 14, Giessen 35392, Germany
| | - Daniel Grenier
- Oral Ecology Research Group, Faculty of Dentistry, Université Laval, 2420 rue de la Terrasse, Quebec City, QC G1V 0A6, Canada
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73
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Wan MLY, Ling KH, El-Nezami H, Wang MF. Influence of functional food components on gut health. Crit Rev Food Sci Nutr 2018; 59:1927-1936. [DOI: 10.1080/10408398.2018.1433629] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Murphy L. Y. Wan
- School of Biological Sciences, Faculty of Science, Kadoorie Biological Sciences Building, The University of Hong Kong, Pokfulam, Hong Kong
| | - K. H. Ling
- School of Biological Sciences, Faculty of Science, Kadoorie Biological Sciences Building, The University of Hong Kong, Pokfulam, Hong Kong
| | - Hani El-Nezami
- School of Biological Sciences, Faculty of Science, Kadoorie Biological Sciences Building, The University of Hong Kong, Pokfulam, Hong Kong
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - M. F. Wang
- School of Biological Sciences, Faculty of Science, Kadoorie Biological Sciences Building, The University of Hong Kong, Pokfulam, Hong Kong
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74
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Ben Lagha A, LeBel G, Grenier D. Dual action of highbush blueberry proanthocyanidins on Aggregatibacter actinomycetemcomitans and the host inflammatory response. Altern Ther Health Med 2018; 18:10. [PMID: 29321009 PMCID: PMC5763534 DOI: 10.1186/s12906-017-2072-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 12/27/2017] [Indexed: 01/06/2023]
Abstract
Background The highbush blueberry (Vaccinium corymbosum) has a beneficial effect on several aspects of human health. The present study investigated the effects of highbush blueberry proanthocyanidins (PACs) on the virulence properties of Aggregatibacter actinomycetemcomitans and macrophage-associated inflammatory responses. Methods PACs were isolated from frozen highbush blueberries using solid-phase chromatography. A microplate dilution assay was performed to determine the effect of highbush blueberry PACs on A. actinomycetemcomitans growth as well as biofilm formation stained with crystal violet. Tight junction integrity of oral keratinocytes was assessed by measuring the transepithelial electrical resistance (TER), while macrophage viability was determined with a colorimetric MTT assay. Pro-inflammatory cytokine and MMP secretion by A. actinomycetemcomitans-stimulated macrophages was quantified by ELISA. The U937-3xκB-LUC monocyte cell line transfected with a luciferase reporter gene was used to monitor NF-κB activation. Results Highbush blueberry PACs reduced the growth of A. actinomycetemcomitans and prevented biofilm formation at sub-inhibitory concentrations. The treatment of pre-formed biofilms with the PACs resulted in a loss of bacterial viability. The antibacterial activity of the PACs appeared to involve damage to the bacterial cell membrane. The PACs protected the oral keratinocytes barrier integrity from damage caused by A. actinomycetemcomitans. The PACs also protected macrophages from the deleterious effect of leukotoxin Ltx-A and dose-dependently inhibited the secretion of pro-inflammatory cytokines (IL-1β, IL-6, CXCL8, TNF-α), matrix metalloproteinases (MMP-3, MMP-9), and sTREM-1 by A. actinomycetemcomitans-treated macrophages. The PACs also inhibited the activation of the NF-κB signaling pathway. Conclusion The antibacterial and anti-inflammatory properties of highbush blueberry PACs as well as their ability to protect the oral keratinocyte barrier and neutralize leukotoxin activity suggest that they may be promising candidates as novel therapeutic agents.
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75
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Rybakovsky E, Valenzano MC, Deis R, DiGuilio KM, Thomas S, Mullin JM. Improvement of Human-Oral-Epithelial-Barrier Function and of Tight Junctions by Micronutrients. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10950-10958. [PMID: 29172516 DOI: 10.1021/acs.jafc.7b04203] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The oral epithelium represents a major interface between an organism and its external environment. Improving this barrier at the molecular level can provide an organism added protection from microbial-based diseases. Barrier function of the Gie-3B11-human-gingival-epithelial-cell-culture model is enhanced by the micronutrients zinc, quercetin, retinoic acid, and acetyl-11-keto-β-boswellic acid, as observed by a concentration-dependent increase in transepithelial electrical resistance and a decrease in transepithelial 14C-d-mannitol permeability. With this improvement of tight-junction (TJ)-barrier function (reduced leak) comes a pattern of micronutrient-induced changes in TJ claudin abundance that is specific to each individual micronutrient, along with changes in claudin subcellular localization. These micronutrients were effective not only when administered to both cell surfaces simultaneously but also when administered to the apical surface alone, the surface to which the micronutrients would be presented in routine clinical use. The biomedical implications of micronutrient enhancement of the oral-epithelial barrier are discussed.
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Affiliation(s)
- Elizabeth Rybakovsky
- Lankenau Institute for Medical Research , 100 East Lancaster Avenue, Wynnewood, Pennsylvania 19096 United States
| | - Mary Carmen Valenzano
- Lankenau Institute for Medical Research , 100 East Lancaster Avenue, Wynnewood, Pennsylvania 19096 United States
| | - Rachael Deis
- Lankenau Institute for Medical Research , 100 East Lancaster Avenue, Wynnewood, Pennsylvania 19096 United States
| | - Katherine M DiGuilio
- Lankenau Institute for Medical Research , 100 East Lancaster Avenue, Wynnewood, Pennsylvania 19096 United States
| | - Sunil Thomas
- Lankenau Institute for Medical Research , 100 East Lancaster Avenue, Wynnewood, Pennsylvania 19096 United States
| | - James M Mullin
- Lankenau Institute for Medical Research , 100 East Lancaster Avenue, Wynnewood, Pennsylvania 19096 United States
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Monk JM, Lepp D, Wu W, Graf D, McGillis LH, Hussain A, Carey C, Robinson LE, Liu R, Tsao R, Brummer Y, Tosh SM, Power KA. Chickpea-supplemented diet alters the gut microbiome and enhances gut barrier integrity in C57Bl/6 male mice. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.02.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Ryu B, Kim CY, Oh H, Kim U, Kim J, Jung CR, Lee BH, Lee S, Chang SN, Lee JM, Chung HM, Park JH. Development of an alternative zebrafish model for drug-induced intestinal toxicity. J Appl Toxicol 2017; 38:259-273. [DOI: 10.1002/jat.3520] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/08/2017] [Accepted: 08/11/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Bokyeong Ryu
- Department of Laboratory Animal Medicine, College of Veterinary Medicine; Seoul National University; Seoul 08826 Republic of Korea
| | - C-Yoon Kim
- Department of Medicine, School of Medicine; Konkuk University; Seoul 05029 Republic of Korea
| | - Hanseul Oh
- Department of Laboratory Animal Medicine, College of Veterinary Medicine; Seoul National University; Seoul 08826 Republic of Korea
| | - Ukjin Kim
- Department of Laboratory Animal Medicine, College of Veterinary Medicine; Seoul National University; Seoul 08826 Republic of Korea
| | - Jin Kim
- Department of Laboratory Animal Medicine, College of Veterinary Medicine; Seoul National University; Seoul 08826 Republic of Korea
| | - Cho-Rok Jung
- Gene Therapy Research Unit; Korea Research Institute of Bioscience and Biotechnology; Daejeon 34141 Republic of Korea
| | - Byoung-Hee Lee
- National Institute of Biological Resources; Incheon 22689 Republic of Korea
| | - Seungki Lee
- National Institute of Biological Resources; Incheon 22689 Republic of Korea
| | - Seo-Na Chang
- Department of Laboratory Animal Medicine, College of Veterinary Medicine; Seoul National University; Seoul 08826 Republic of Korea
| | - Ji Min Lee
- Department of Laboratory Animal Medicine, College of Veterinary Medicine; Seoul National University; Seoul 08826 Republic of Korea
| | - Hyung-Min Chung
- Department of Medicine, School of Medicine; Konkuk University; Seoul 05029 Republic of Korea
| | - Jae-Hak Park
- Department of Laboratory Animal Medicine, College of Veterinary Medicine; Seoul National University; Seoul 08826 Republic of Korea
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JanssenDuijghuijsen LM, Grefte S, de Boer VCJ, Zeper L, van Dartel DAM, van der Stelt I, Bekkenkamp-Grovenstein M, van Norren K, Wichers HJ, Keijer J. Mitochondrial ATP Depletion Disrupts Caco-2 Monolayer Integrity and Internalizes Claudin 7. Front Physiol 2017; 8:794. [PMID: 29075202 PMCID: PMC5641570 DOI: 10.3389/fphys.2017.00794] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 09/28/2017] [Indexed: 01/16/2023] Open
Abstract
Objective:In vivo studies suggest that intestinal barrier integrity is dependent on mitochondrial ATP production. Here, we aim to provide mechanistic support, using an in vitro model mimicking the oxidative in vivo situation. Methods: Human Caco-2 cells were cultured for 10 days in culture flasks or for 14 days on transwell inserts in either glucose-containing or galactose-containing medium. Mitochondria were visualized and cellular respiration and levels of oxidative phosphorylation (OXPHOS) proteins were determined. Mitochondrial ATP depletion was induced using CCCP, rotenone, or piericidin A (PA). Monolayer permeability was assessed using transepithelial electrical resistance (TEER) and fluorescein flux. Gene expression and cellular distribution of tight junction proteins were analyzed. Results: Caco-2 cells cultured in galactose-containing, but not in glucose-containing, medium showed increased mitochondrial connectivity, oxygen consumption rates and levels of OXPHOS proteins. Inhibition of mitochondrial ATP production using CCCP, rotenone or PA resulted in a dose-dependent increase in Caco-2 monolayer permeability. In-depth studies with PA showed a six fold decrease in cellular ATP and revealed increased gene expression of tight junction proteins (TJP) 1 and 2, occludin, and claudin 1, but decreased gene expression of claudin 2 and 7. Of these, claudin 7 was clearly redistributed from the cellular membrane into the cytoplasm, while the others were not (TJP1, occludin) or slightly (claudin 2, actin) affected. In vivo studies suggest that intestinal barrier integrity is dependent on mitochondrial ATP production. Here, we aim to provide mechanistic support, using an in vitro model mimicking the oxidative in vivo situation. Conclusions: Well-functioning mitochondria are essential for maintaining cellular energy status and monolayer integrity of galactose grown Caco-2 cells. Energy depletion-induced Caco-2 monolayer permeability may be facilitated by changes in the distribution of claudin 7.
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Affiliation(s)
- Lonneke M JanssenDuijghuijsen
- Wageningen Food and Biobased Research, Wageningen University and Research, Wageningen, Netherlands.,Human and Animal Physiology, Wageningen University and Research, Wageningen, Netherlands.,Division of Human Nutrition, Wageningen University and Research, Wageningen, Netherlands
| | - Sander Grefte
- Human and Animal Physiology, Wageningen University and Research, Wageningen, Netherlands
| | - Vincent C J de Boer
- Human and Animal Physiology, Wageningen University and Research, Wageningen, Netherlands
| | - Lara Zeper
- Human and Animal Physiology, Wageningen University and Research, Wageningen, Netherlands
| | - Dorien A M van Dartel
- Human and Animal Physiology, Wageningen University and Research, Wageningen, Netherlands
| | - Inge van der Stelt
- Human and Animal Physiology, Wageningen University and Research, Wageningen, Netherlands
| | | | - Klaske van Norren
- Division of Human Nutrition, Wageningen University and Research, Wageningen, Netherlands.,Nutricia Research, Utrecht, Netherlands
| | - Harry J Wichers
- Wageningen Food and Biobased Research, Wageningen University and Research, Wageningen, Netherlands
| | - Jaap Keijer
- Human and Animal Physiology, Wageningen University and Research, Wageningen, Netherlands
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Vergauwen H, Degroote J, Prims S, Wang W, Fransen E, De Smet S, Casteleyn C, Van Cruchten S, Michiels J, Van Ginneken C. Artificial rearing influences the morphology, permeability and redox state of the gastrointestinal tract of low and normal birth weight piglets. J Anim Sci Biotechnol 2017; 8:30. [PMID: 28405313 PMCID: PMC5385054 DOI: 10.1186/s40104-017-0159-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 03/16/2017] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND In this study the physiological implications of artificial rearing were investigated. Low (LBW) and normal birth weight (NBW) piglets were compared as they might react differently to stressors caused by artificial rearing. In total, 42 pairs of LBW and NBW piglets from 16 litters suckled the sow until d19 of age or were artificially reared starting at d3 until d19 of age. Blood and tissue samples that were collected after euthanasia at 0, 3, 5, 8 and 19 d of age. Histology, ELISA, and Ussing chamber analysis were used to study proximal and distal small intestine histo-morphology, proliferation, apoptosis, tight junction protein expression, and permeability. Furthermore, small intestine, liver and systemic redox parameters (GSH, GSSG, GSH-Px and MDA) were investigated using HPLC. RESULTS LBW and NBW artificially reared piglets weighed respectively 40 and 33% more than LBW and NBW sow-reared piglets at d19 (P < 0.01). Transferring piglets to a nursery at d3 resulted in villus atrophy, increased intestinal FD-4 and HRP permeability and elevated GSSG/GSH ratio in the distal small intestine at d5 (P < 0.05). GSH concentrations in the proximal small intestine remained stable, while they decreased in the liver (P < 0.05). From d5 until d19, villus width and crypt depth increased, whereas PCNA, caspase-3, occludin and claudin-3 protein expressions were reduced. GSH, GSSG and permeability recovered in artificially reared piglets (P < 0.05). CONCLUSION The results suggest that artificial rearing altered the morphology, permeability and redox state without compromising piglet performance. The observed effects were not depending on birth weight.
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Affiliation(s)
- Hans Vergauwen
- Laboratory of Applied Veterinary Morphology, Department of Veterinary Sciences, Faculty of Biomedical, Pharmaceutical and Veterinary Sciences, University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, D.U.015, 2610 Wilrijk, Belgium
| | - Jeroen Degroote
- Department of Applied Biosciences, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Sara Prims
- Laboratory of Applied Veterinary Morphology, Department of Veterinary Sciences, Faculty of Biomedical, Pharmaceutical and Veterinary Sciences, University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, D.U.015, 2610 Wilrijk, Belgium
| | - Wei Wang
- Department of Applied Biosciences, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.,Laboratory for Animal Nutrition and Animal Product Quality (LANUPRO), Department of Animal Production, Faculty of Bioscience Engineering, Ghent University, Melle, Belgium
| | - Erik Fransen
- StatUa Center for Statistics, University of Antwerp, Antwerp, Belgium
| | - Stefaan De Smet
- Laboratory for Animal Nutrition and Animal Product Quality (LANUPRO), Department of Animal Production, Faculty of Bioscience Engineering, Ghent University, Melle, Belgium
| | - Christophe Casteleyn
- Laboratory of Applied Veterinary Morphology, Department of Veterinary Sciences, Faculty of Biomedical, Pharmaceutical and Veterinary Sciences, University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, D.U.015, 2610 Wilrijk, Belgium
| | - Steven Van Cruchten
- Laboratory of Applied Veterinary Morphology, Department of Veterinary Sciences, Faculty of Biomedical, Pharmaceutical and Veterinary Sciences, University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, D.U.015, 2610 Wilrijk, Belgium
| | - Joris Michiels
- Department of Applied Biosciences, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Chris Van Ginneken
- Laboratory of Applied Veterinary Morphology, Department of Veterinary Sciences, Faculty of Biomedical, Pharmaceutical and Veterinary Sciences, University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, D.U.015, 2610 Wilrijk, Belgium
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Carr DF, Ayehunie S, Davies A, Duckworth CA, French S, Hall N, Hussain S, Mellor HR, Norris A, Park BK, Penrose A, Pritchard DM, Probert CS, Ramaiah S, Sadler C, Schmitt M, Shaw A, Sidaway JE, Vries RG, Wagoner M, Pirmohamed M. Towards better models and mechanistic biomarkers for drug-induced gastrointestinal injury. Pharmacol Ther 2017; 172:181-194. [DOI: 10.1016/j.pharmthera.2017.01.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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81
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Gil-Cardoso K, Ginés I, Pinent M, Ardévol A, Arola L, Blay M, Terra X. Chronic supplementation with dietary proanthocyanidins protects from diet-induced intestinal alterations in obese rats. Mol Nutr Food Res 2017; 61. [DOI: 10.1002/mnfr.201601039] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 01/27/2017] [Accepted: 01/30/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Katherine Gil-Cardoso
- MoBioFood Research Group; Departament de Bioquímica i Biotecnologia; Universitat Rovira i Virgili; Tarragona Spain
| | - Iris Ginés
- MoBioFood Research Group; Departament de Bioquímica i Biotecnologia; Universitat Rovira i Virgili; Tarragona Spain
| | - Montserrat Pinent
- MoBioFood Research Group; Departament de Bioquímica i Biotecnologia; Universitat Rovira i Virgili; Tarragona Spain
| | - Anna Ardévol
- MoBioFood Research Group; Departament de Bioquímica i Biotecnologia; Universitat Rovira i Virgili; Tarragona Spain
| | - Lluís Arola
- Nutrigenomics Research Group; Departament de Bioquímica i Biotecnologia; Universitat Rovira i Virgili; Tarragona Spain
| | - Mayte Blay
- MoBioFood Research Group; Departament de Bioquímica i Biotecnologia; Universitat Rovira i Virgili; Tarragona Spain
| | - Ximena Terra
- MoBioFood Research Group; Departament de Bioquímica i Biotecnologia; Universitat Rovira i Virgili; Tarragona Spain
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Fan FY, Sang LX, Jiang M. Catechins and Their Therapeutic Benefits to Inflammatory Bowel Disease. Molecules 2017; 22:E484. [PMID: 28335502 PMCID: PMC6155401 DOI: 10.3390/molecules22030484] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 02/19/2017] [Accepted: 02/28/2017] [Indexed: 02/07/2023] Open
Abstract
Catechins are natural polyphenolic phytochemicals that exist in food and medicinal plants, such as tea, legume and rubiaceae. An increasing number of studies have associated the intake of catechins-rich foods with the prevention and treatment of chronic diseases in humans, such as inflammatory bowel disease (IBD). Some studies have demonstrated that catechins could significantly inhibit the excessive oxidative stress through direct or indirect antioxidant effects and promote the activation of the antioxidative substances such as glutathione peroxidases (GPO) and glutathione (GSH), reducing the oxidative damages to the colon. In addition, catechins can also regulate the infiltration and proliferation of immune related-cells, such as neutrophils, colonic epithelial cells, macrophages, and T lymphocytes, helping reduce the inflammatory relations and provide benefits to IBD. Perhaps catechins can further inhibit the deterioration of intestinal lesions through regulating the cell gap junctions. Furthermore, catechins can exert their significant anti-inflammatory properties by regulating the activation or deactivation of inflammation-related oxidative stress-related cell signaling pathways, such as nuclear factor-kappa B (NF-κB), mitogen activated protein kinases (MAPKs), transcription factor nuclear factor (erythroid-derived 2)-like 2 (Nrf2), signal transducer and the activator of transcription 1/3 (STAT1/3) pathways. Finally, catechins can also stabilize the structure of the gastrointestinal micro-ecological environment via promoting the proliferation of beneficial intestinal bacteria and regulating the balance of intestinal flora, so as to relieve the IBD. Furthermore, catechins may regulate the tight junctions (TJ) in the epithelium. This paper elaborates the currently known possible molecular mechanisms of catechins in favor of IBD.
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Affiliation(s)
- Fei-Yan Fan
- Department of Gastroenterology, First Affiliated Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang 110001, China.
| | - Li-Xuan Sang
- Department of Geriatrics, First Affiliated Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang 110001, China.
| | - Min Jiang
- Department of Gastroenterology, First Affiliated Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang 110001, China.
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83
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Hwang D, Jo H, Hwang S, Kim JK, Kim IH, Lim YH. Conditioned medium from LS 174T goblet cells treated with oxyresveratrol strengthens tight junctions in Caco-2 cells. Biomed Pharmacother 2016; 85:280-286. [PMID: 27876210 DOI: 10.1016/j.biopha.2016.11.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 10/19/2016] [Accepted: 11/07/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Strengthening of intestinal tight junctions provides an effective barrier from the external environment. Goblet cell-derived trefoil factor 3 (TFF3) increases transepithelial resistance by upregulating the expression of tight junction proteins. Oxyresveratrol (OXY) is a hydroxyl-substituted stilbene found in the roots, leaves, stems, and fruit of many plants and known to have various biological activities. In this study, we investigated the strengthening effect of OXY on intestinal tight junctions through stimulation of TFF production in goblet cells. METHODS We prepared conditioned medium from LS 174T goblet cells treated with OXY (GCO-CM) and investigated the effect of GCO-CM on strengthening tight junctions of Caco-2 cells. The mRNA and protein expression levels of major tight junction components (claudin-1, occludin, and ZO-1) were measured by quantitative real-time PCR and western blotting, respectively. Transepithelial electric resistance (TEER) was measured using an ohm/V meter. Monolayer permeability was evaluated by paracellular transport of fluorescein isothiocyanate-dextran. RESULTS OXY showed a strong antioxidant activity. It significantly increased the expression level of TFF3 in LS 174T goblet cells. GCO-CM prepared by treatment with 2.5, 5, and 10μg/ml OXY did not show cytotoxicity in Caco-2 cells. GCO-CM increased the mRNA and protein expression levels of claudin-1, occludin, and ZO-1. It also significantly increased tight junction integrity and reduced permeability in a dose-dependent manner. CONCLUSION OXY stimulates the expression of TFF3 in goblet cells, which might increase the integrity of the intestinal tight junction barrier.
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Affiliation(s)
- Dahyun Hwang
- Department of Public Health Science (BK21 PLUS Program), Graduate School, Korea University, Seoul 136-701, South Korea
| | - HyunA Jo
- Department of Integrated Biomedical and Life Sciences, Graduate School, Korea University, Seoul 136-701, South Korea
| | - Seonwook Hwang
- Department of Public Health Science (BK21 PLUS Program), Graduate School, Korea University, Seoul 136-701, South Korea
| | - Jeong-Keun Kim
- Department of Chemical Engineering and Biotechnology, Korea Polytechnic University, Shihung-si, Gyeonggi-do 429-793, South Korea
| | - In-Ho Kim
- Division of Functional Food Research, Korea Food Research Institute, Seongnam-si, Gyeonggi-do 463-746, South Korea
| | - Young-Hee Lim
- Department of Public Health Science (BK21 PLUS Program), Graduate School, Korea University, Seoul 136-701, South Korea; Department of Integrated Biomedical and Life Sciences, Graduate School, Korea University, Seoul 136-701, South Korea; Department of Laboratory Medicine, Korea University Guro Hospital, Seoul 152-703, South Korea.
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84
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Effects of flavonoids on intestinal inflammation, barrier integrity and changes in gut microbiota during diet-induced obesity. Nutr Res Rev 2016; 29:234-248. [PMID: 27841104 DOI: 10.1017/s0954422416000159] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Diet-induced obesity is associated with low-grade inflammation, which, in most cases, leads to the development of metabolic disorders, primarily insulin resistance and type 2 diabetes. Although prior studies have implicated the adipose tissue as being primarily responsible for obesity-associated inflammation, the latest discoveries have correlated impairments in intestinal immune homeostasis and the mucosal barrier with increased activation of the inflammatory pathways and the development of insulin resistance. Therefore, it is essential to define the mechanisms underlying the obesity-associated gut alterations to develop therapies to prevent and treat obesity and its associated diseases. Flavonoids appear to be promising candidates among the natural preventive treatments that have been identified to date. They have been shown to protect against several diseases, including CVD and various cancers. Furthermore, they have clear anti-inflammatory properties, which have primarily been evaluated in non-intestinal models. At present, a growing body of evidence suggests that flavonoids could exert a protective role against obesity-associated pathologies by modulating inflammatory-related cellular events in the intestine and/or the composition of the microbiota populations. The present paper will review the literature to date that has described the protective effects of flavonoids on intestinal inflammation, barrier integrity and gut microbiota in studies conducted using in vivo and in vitro models.
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85
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Power KA, Lu JT, Monk JM, Lepp D, Wu W, Zhang C, Liu R, Tsao R, Robinson LE, Wood GA, Wolyn DJ. Purified rutin and rutin-rich asparagus attenuates disease severity and tissue damage following dextran sodium sulfate-induced colitis. Mol Nutr Food Res 2016; 60:2396-2412. [PMID: 27349947 DOI: 10.1002/mnfr.201500890] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 06/07/2016] [Accepted: 06/15/2016] [Indexed: 12/25/2022]
Abstract
SCOPE This study investigated the effects of cooked whole asparagus (ASP) versus its equivalent level of purified flavonoid glycoside, rutin (RUT), on dextran sodium sulfate (DSS)-induced colitis and subsequent colitis recovery in mice. METHODS AND RESULTS C57BL/6 male mice were fed an AIN-93G basal diet (BD), or BD supplemented with 2% cooked ASP or 0.025% RUT for 2 wks prior to and during colitis induction with 2% DSS in water for 7 days, followed by 5 days colitis recovery. In colitic mice, both ASP and RUT upregulated mediators of improved barrier integrity and enhanced mucosal injury repair (e.g. Muc1, IL-22, Rho-A, Rac1, and Reg3γ), increased the proportion of mouse survival, and improved disease activity index. RUT had the greatest effect in attenuating DSS-induced colonic damage indicated by increased crypt and goblet cell restitution, reduced colonic myeloperoxidase, as well as attenuated DSS-induced microbial dysbiosis (reduced Enterobacteriaceae and Bacteroides, and increased unassigned Clostridales, Oscillospira, Lactobacillus, and Bifidobacterium). CONCLUSION These findings demonstrate that dietary cooked ASP and its flavonoid glycoside, RUT, may be useful in attenuating colitis severity by modulating the colonic microenvironment resulting in reduced colonic inflammation, promotion of colonic mucosal injury repair, and attenuation of colitis-associated microbial dysbiosis.
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Affiliation(s)
- Krista A Power
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | - Jenifer T Lu
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | - Jennifer M Monk
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | - Dion Lepp
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
| | - Wenqing Wu
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
| | - Claire Zhang
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | - Ronghua Liu
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
| | - Rong Tsao
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
| | - Lindsay E Robinson
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | - Geoffrey A Wood
- Department of Pathobiology, University of Guelph, Guelph, ON, Canada
| | - David J Wolyn
- Department of Plant Agriculture, University of Guelph, Guelph, ON, Canada
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Ben Lagha A, Grenier D. Black tea theaflavins attenuate Porphyromonas gingivalis virulence properties, modulate gingival keratinocyte tight junction integrity and exert anti-inflammatory activity. J Periodontal Res 2016; 52:458-470. [PMID: 27549582 DOI: 10.1111/jre.12411] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2016] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND OBJECTIVE Over the last 10 years, bioactive plant food compounds have received considerable attention in regard to their beneficial effects against periodontal disease. In this study, we investigated the effects of black tea theaflavins (TFs) on the virulence properties of Porphyromonas gingivalis and gingival keratinocyte tight junction integrity. In addition, the effects of black tea TFs on the nuclear factor-κB (NF-κB) signaling pathway and proinflammatory cytokine/matrix metalloproteinase (MMP) secretion by monocytes/macrophages were assessed. MATERIAL AND METHODS Virulence factor gene expression in P. gingivalis was investigated by quantitative real-time PCR. A fluorescence assay was used to determine P. gingivalis adherence to, and invasion of, a gingival keratinocyte monolayer. Tight junction integrity of gingival keratinocytes was assessed by determination of transepithelial electrical resistance. Proinflammatory cytokine and MMP secretion by P. gingivalis-stimulated macrophages was quantified by ELISA. The U937-3xκB-LUC monocyte cell line transfected with a luciferase reporter gene was used to monitor NF-κB activation. Gelatin degradation was monitored using a fluorogenic assay. RESULTS Black tea TFs dose-dependently inhibited the expression of genes encoding the major virulence factors of P. gingivalis and attenuated its adherence to gingival keratinocytes. A treatment of gingival keratinocytes with black tea TFs significantly enhanced tight junction integrity and prevented P. gingivalis-mediated tight junction damage as well as bacterial invasion. Black tea TFs reduced the secretion of interleukin (IL)-1β, tumor necrosis factor-α, IL-6, chemokine (C-X-C) ligand 8, MMP-3, MMP-8 and MMP-9 by P. gingivalis-stimulated macrophages and attenuated the P. gingivalis-mediated activation of the NF-κB signaling pathway. Lastly, black tea TFs inhibited gelatin degradation by MMP-9. CONCLUSION This study provides clear evidence that black tea TFs represent promising multifunctional therapeutic agents for prevention and treatment of periodontal disease.
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Affiliation(s)
- A Ben Lagha
- Oral Ecology Research Group, Faculty of Dentistry, Laval University, Quebec City, QC, Canada
| | - D Grenier
- Oral Ecology Research Group, Faculty of Dentistry, Laval University, Quebec City, QC, Canada
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Bioactivity of Polyphenols: Preventive and Adjuvant Strategies toward Reducing Inflammatory Bowel Diseases-Promises, Perspectives, and Pitfalls. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:9346470. [PMID: 27478535 PMCID: PMC4958438 DOI: 10.1155/2016/9346470] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 04/13/2016] [Accepted: 05/24/2016] [Indexed: 12/13/2022]
Abstract
Inflammatory bowel diseases (IBDs) are characterized by autoimmune and inflammation-related complications of the large intestine (ulcerative colitis) and additional parts of the digestive tract (Crohn's disease). Complications include pain, diarrhoea, chronic inflammation, and cancer. IBD prevalence has increased during the past decades, especially in Westernized countries, being as high as 1%. As prognosis is poor and medication often ineffective or causing side effects, additional preventive/adjuvant strategies are sought. A possible approach is via diets rich in protective constituents. Polyphenols, the most abundant phytochemicals, have been associated with anti-inflammatory, antioxidant, immunomodulatory, and apoptotic properties. Locally reducing oxidative stress, they can further act on cellular targets, altering gene expression related to inflammation, including NF-κB, Nrf-2, Jak/STAT, and MAPKs, suppressing downstream cytokine formation (e.g., IL-8, IL-1β, and TNF-α), and boosting the bodies' own antioxidant status (HO-1, SOD, and GPx). Moreover, they may promote, as prebiotics, healthy microbiota (e.g., Bifidobacteria, Akkermansia), short-chain fatty acid formation, and reduced gut permeability/improved tight junction stability. However, potential adverse effects such as acting as prooxidants, or perturbations of efflux transporters and phase I/II metabolizing enzymes, with increased uptake of undesired xenobiotics, should also be considered. In this review, we summarize current knowledge around preventive and arbitrary actions of polyphenols targeting IBD.
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88
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Wong X, Carrasco-Pozo C, Escobar E, Navarrete P, Blachier F, Andriamihaja M, Lan A, Tomé D, Cires MJ, Pastene E, Gotteland M. Deleterious Effect of p-Cresol on Human Colonic Epithelial Cells Prevented by Proanthocyanidin-Containing Polyphenol Extracts from Fruits and Proanthocyanidin Bacterial Metabolites. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:3574-3583. [PMID: 27039931 DOI: 10.1021/acs.jafc.6b00656] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The protective effect of proanthocyanidin-containing polyphenol extracts from apples, avocados, cranberries, grapes, or proanthocyanidin microbial metabolites was evaluated in colonic epithelial cells exposed to p-cresol, a deleterious compound produced by the colonic microbiota from l-tyrosine. In HT29 Glc(-/+) cells, p-cresol significantly increased LDH leakage and decreased ATP contents, whereas in Caco-2 cell monolayers, it significantly decreased the transepithelial electrical resistance and increased the paracellular transport of FITC-dextran. The alterations induced by p-cresol in HT29 Glc(-/+) cells were prevented by the extracts from cranberries and avocados, whereas they became worse by extracts from apples and grapes. The proanthocyanidin bacterial metabolites decreased LDH leakage, ameliorating cell viability without improving intracellular ATP. All of the polyphenol extracts and proanthocyanidin bacterial metabolites prevented the p-cresol-induced alterations of barrier function. These results suggest that proanthocyanidin-containing polyphenol extracts and proanthocyanidin metabolites likely contribute to the protection of the colonic mucosa against the deleterious effects of p-cresol.
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Affiliation(s)
- Ximena Wong
- Department of Nutrition, Faculty of Medicine, University of Chile , Independencia 1027, Independencia, Santiago, Chile
| | - Catalina Carrasco-Pozo
- Department of Nutrition, Faculty of Medicine, University of Chile , Independencia 1027, Independencia, Santiago, Chile
| | - Elizabeth Escobar
- Department of Nutrition, Faculty of Medicine, University of Chile , Independencia 1027, Independencia, Santiago, Chile
| | - Paola Navarrete
- Institute of Nutrition and Food Technology (INTA), University of Chile , Santiago, Chile
| | - Franςois Blachier
- INRA/AGROPARISTECH , UMR 914 Nutrition Physiology and Ingestive Behavior, Paris, France
| | - Mireille Andriamihaja
- INRA/AGROPARISTECH , UMR 914 Nutrition Physiology and Ingestive Behavior, Paris, France
| | - Annaig Lan
- INRA/AGROPARISTECH , UMR 914 Nutrition Physiology and Ingestive Behavior, Paris, France
| | - Daniel Tomé
- INRA/AGROPARISTECH , UMR 914 Nutrition Physiology and Ingestive Behavior, Paris, France
| | - Marı́a José Cires
- Department of Nutrition, Faculty of Medicine, University of Chile , Independencia 1027, Independencia, Santiago, Chile
| | - Edgar Pastene
- Laboratory of Pharmacognosy, Faculty of Pharmacy, University of Concepción , Concepción, Chile
| | - Martin Gotteland
- Department of Nutrition, Faculty of Medicine, University of Chile , Independencia 1027, Independencia, Santiago, Chile
- Institute of Nutrition and Food Technology (INTA), University of Chile , Santiago, Chile
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89
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Logan AC, Jacka FN, Craig JM, Prescott SL. The Microbiome and Mental Health: Looking Back, Moving Forward with Lessons from Allergic Diseases. CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE 2016; 14:131-47. [PMID: 27121424 PMCID: PMC4857870 DOI: 10.9758/cpn.2016.14.2.131] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 11/05/2015] [Indexed: 02/06/2023]
Abstract
Relationships between gastrointestinal viscera and human emotions have been documented by virtually all medical traditions known to date. The focus on this relationship has waxed and waned through the centuries, with noted surges in interest driven by cultural forces. Here we explore some of this history and the emerging trends in experimental and clinical research. In particular, we pay specific attention to how the hygiene hypothesis and emerging research on traditional dietary patterns has helped re-ignite interest in the use of microbes to support mental health. At present, the application of microbes and their structural parts as a means to positively influence mental health is an area filled with promise. However, there are many limitations within this new paradigm shift in neuropsychiatry. Impediments that could block translation of encouraging experimental studies include environmental forces that work toward dysbiosis, perhaps none more important than westernized dietary patterns. On the other hand, it is likely that specific dietary choices may amplify the value of future microbial-based therapeutics. Pre-clinical and clinical research involving microbiota and allergic disorders has predated recent work in psychiatry, an early start that provides valuable lessons. The microbiome is intimately connected to diet, nutrition, and other lifestyle variables; microbial-based psychopharmacology will need to consider this contextual application, otherwise the ceiling of clinical expectations will likely need to be lowered.
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Affiliation(s)
- Alan C Logan
- International Inflammation (in-FLAME) Network, Worldwide Universities Network (WUN), Geelong, Australia.,International Society for Nutritional Psychiatry Research (ISNPR), Geelong, Australia
| | - Felice N Jacka
- International Inflammation (in-FLAME) Network, Worldwide Universities Network (WUN), Geelong, Australia.,International Society for Nutritional Psychiatry Research (ISNPR), Geelong, Australia.,The Centre for Innovation in Mental and Physical Health and Clinical Treatment, School of Medicine, Deakin University, Geelong, Australia.,Centre for Adolescent Health, Murdoch Children's Research Institute, Melbourne, Australia.,Department of Psychiatry, University of Melbourne, Melbourne, Australia.,Black Dog Institute, Sydney, Australia
| | - Jeffrey M Craig
- International Inflammation (in-FLAME) Network, Worldwide Universities Network (WUN), Geelong, Australia.,Group of Early Life Epigenetics, Department of Paediatrics, Murdoch Children's Research Institute, University of Melbourne, Melbourne, Australia
| | - Susan L Prescott
- International Inflammation (in-FLAME) Network, Worldwide Universities Network (WUN), Geelong, Australia.,School of Paediatrics and Child Health, University of Western Australia, Perth, Australia
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90
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Han KH, Hashimoto N, Fukushima M. Relationships among alcoholic liver disease, antioxidants, and antioxidant enzymes. World J Gastroenterol 2016; 22:37-49. [PMID: 26755859 PMCID: PMC4698500 DOI: 10.3748/wjg.v22.i1.37] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/25/2015] [Accepted: 09/02/2015] [Indexed: 02/06/2023] Open
Abstract
Excessive consumption of alcoholic beverages is a serious cause of liver disease worldwide. The metabolism of ethanol generates reactive oxygen species, which play a significant role in the deterioration of alcoholic liver disease (ALD). Antioxidant phytochemicals, such as polyphenols, regulate the expression of ALD-associated proteins and peptides, namely, catalase, superoxide dismutase, glutathione, glutathione peroxidase, and glutathione reductase. These plant antioxidants have electrophilic activity and may induce antioxidant enzymes via the Kelch-like ECH-associated protein 1-NF-E2-related factor-2 pathway and antioxidant responsive elements. Furthermore, these antioxidants are reported to alleviate cell injury caused by oxidants or inflammatory cytokines. These phenomena are likely induced via the regulation of mitogen-activating protein kinase (MAPK) pathways by plant antioxidants, similar to preconditioning in ischemia-reperfusion models. Although the relationship between plant antioxidants and ALD has not been adequately investigated, plant antioxidants may be preventive for ALD because of their electrophilic and regulatory activities in the MAPK pathway.
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91
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Molecular mechanisms of gastrointestinal protection by quercetin against indomethacin-induced damage: role of NF-κB and Nrf2. J Nutr Biochem 2016; 27:289-98. [DOI: 10.1016/j.jnutbio.2015.09.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 09/16/2015] [Accepted: 09/18/2015] [Indexed: 12/30/2022]
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92
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Fan P, Tan Y, Jin K, Lin C, Xia S, Han B, Zhang F, Wu L, Ma X. Supplemental lipoic acid relieves post-weaning diarrhoea by decreasing intestinal permeability in rats. J Anim Physiol Anim Nutr (Berl) 2015; 101:136-146. [PMID: 26717901 DOI: 10.1111/jpn.12427] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 09/30/2015] [Indexed: 12/19/2022]
Abstract
Lipoic acid (LA) is a naturally existing substance which widely distributed in the cellular membranes and cytosol of animal cells. Its intracellular functions include quenching of free radicals and repairing oxidized proteins. The purpose of this study was to evaluate the effects of LA on post-weaning diarrhoea using a rat model. Sixty weaned rats were fed either a basal diet or a LA-supplemented diet, or a zinc oxide (ZnO)-supplemented diet as a positive control. Rats in the LA and ZnO groups had better performance and reduced incidence of diarrhoea (p < 0.05). Both LA and ZnO treatments enhanced intestinal homeostatic and architecture, significantly decreased urinary lactulose to mannitol ratios (p < 0.05) and increased the expression of the intestinal mucosal tight junction proteins occludin (OCLN) and zonula occludens protein-1 (ZO-1) (p < 0.05). LA significantly increased the activities of antioxidant enzymes, and reduced glutathione while decreasing the levels of oxidative glutathione and malondialdehyde in the intestinal mucosa (p < 0.05). Furthermore, an in vitro study indicated that supplementation with LA in IEC-6 intestinal epithelial cells significantly enhanced the expression of OCLN and ZO-1 under hydrogen peroxide-induced oxidative stress. Collectively, these results suggest that LA relieves post-weaning diarrhoea by reducing intestinal permeability and improving antioxidant indices.
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Affiliation(s)
- P Fan
- State Key Lab of Animal Nutrition, China Agricultural University, Beijing, China
| | - Y Tan
- State Key Lab of Animal Nutrition, China Agricultural University, Beijing, China
| | - K Jin
- State Key Lab of Animal Nutrition, China Agricultural University, Beijing, China
| | - C Lin
- State Key Lab of Animal Nutrition, China Agricultural University, Beijing, China
| | - S Xia
- State Key Lab of Animal Nutrition, China Agricultural University, Beijing, China
| | - B Han
- State Key Lab of Animal Nutrition, China Agricultural University, Beijing, China
| | - F Zhang
- State Key Lab of Animal Nutrition, China Agricultural University, Beijing, China
| | - L Wu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Central Laboratory, Peking University Cancer Hospital & Institute, Beijing, China
| | - X Ma
- State Key Lab of Animal Nutrition, China Agricultural University, Beijing, China.,Department of Internal Medicine, Center for Autophagy Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
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93
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Araki Y, Koshiishi I. Simultaneous evaluation of one-electron reducing systems and radical reactions in cells by nitroxyl biradical as probe. Biomed Chromatogr 2015; 30:1131-1137. [DOI: 10.1002/bmc.3661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/01/2015] [Accepted: 11/20/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Yoko Araki
- Gunma University; 3-39-22 Showa-machi Maebashi Gunma 371-8511 Japan
| | - Ichiro Koshiishi
- Gunma University; 3-39-22 Showa-machi Maebashi Gunma 371-8511 Japan
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94
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Mosele JI, Macià A, Motilva MJ. Metabolic and Microbial Modulation of the Large Intestine Ecosystem by Non-Absorbed Diet Phenolic Compounds: A Review. Molecules 2015; 20:17429-68. [PMID: 26393570 PMCID: PMC6331829 DOI: 10.3390/molecules200917429] [Citation(s) in RCA: 155] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 08/31/2015] [Accepted: 09/11/2015] [Indexed: 12/11/2022] Open
Abstract
Phenolic compounds represent a diverse group of phytochemicals whose intake is associated with a wide spectrum of health benefits. As consequence of their low bioavailability, most of them reach the large intestine where, mediated by the action of local microbiota, a series of related microbial metabolites are accumulated. In the present review, gut microbial transformations of non-absorbed phenolic compounds are summarized. Several studies have reached a general consensus that unbalanced diets are associated with undesirable changes in gut metabolism that could be detrimental to intestinal health. In terms of explaining the possible effects of non-absorbed phenolic compounds, we have also gathered information regarded their influence on the local metabolism. For this purpose, a number of issues are discussed. Firstly, we consider the possible implications of phenolic compounds in the metabolism of colonic products, such as short chain fatty acids (SCFA), sterols (cholesterol and bile acids), and microbial products of non-absorbed proteins. Due to their being recognized as affective antioxidant and anti-inflammatory agents, the ability of phenolic compounds to counteract or suppress pro-oxidant and/or pro-inflammatory responses, triggered by bowel diseases, is also presented. The modulation of gut microbiota through dietetic maneuvers including phenolic compounds is also commented on. Although the available data seems to assume positive effects in terms of gut health protection, it is still insufficient for solid conclusions to be extracted, basically due to the lack of human trials to confirm the results obtained by the in vitro and animal studies. We consider that more emphasis should be focused on the study of phenolic compounds, particularly in their microbial metabolites, and their power to influence different aspects of gut health.
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Affiliation(s)
- Juana I Mosele
- Food Technology Department, Agrotecnio Research Center, University of Lleida, Av/Alcalde Rovira Roure 191, 25198-Lleida, Spain.
| | - Alba Macià
- Food Technology Department, Agrotecnio Research Center, University of Lleida, Av/Alcalde Rovira Roure 191, 25198-Lleida, Spain.
| | - Maria-José Motilva
- Food Technology Department, Agrotecnio Research Center, University of Lleida, Av/Alcalde Rovira Roure 191, 25198-Lleida, Spain.
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95
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Remodeling of Tight Junctions and Enhancement of Barrier Integrity of the CACO-2 Intestinal Epithelial Cell Layer by Micronutrients. PLoS One 2015; 10:e0133926. [PMID: 26226276 PMCID: PMC4520484 DOI: 10.1371/journal.pone.0133926] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 06/22/2015] [Indexed: 01/21/2023] Open
Abstract
The micronutrients zinc, quercetin, butyrate, indole and berberine were evaluated for their ability to induce remodeling of epithelial tight junctions (TJs) and enhance barrier integrity in the CACO-2 gastrointestinal epithelial cell culture model. All five of these chemically very diverse micronutrients increased transepithelial electrical resistance (Rt) significantly, but only berberine also improved barrier integrity to the non-electrolyte D-mannitol. Increases of Rt as much as 200% of untreated controls were observed. Each of the five micronutrients also induced unique, signature-like changes in TJ protein composition, suggesting multiple pathways (and TJ arrangements) by which TJ barrier function can be enhanced. Decreases in abundance by as much as 90% were observed for claudin-2, and increases of over 300% could be seen for claudins -5 and -7. The exact effects of the micronutrients on barrier integrity and TJ protein composition were found to be highly dependent on the degree of differentiation of the cell layer at the time it was exposed to the micronutrient. The substratum to which the epithelial layer adheres was also found to regulate the response of the cell layer to the micronutrient. The implications of these findings for therapeutically decreasing morbidity in Inflammatory Bowel Disease are discussed.
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96
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Trolox and ascorbic acid reduce direct and indirect oxidative stress in the IPEC-J2 cells, an in vitro model for the porcine gastrointestinal tract. PLoS One 2015; 10:e0120485. [PMID: 25745867 PMCID: PMC4351986 DOI: 10.1371/journal.pone.0120485] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 01/23/2015] [Indexed: 12/21/2022] Open
Abstract
Oxidative stress in the small intestinal epithelium is a major cause of barrier malfunction and failure to regenerate. This study presents a functional in vitro model using the porcine small intestinal epithelial cell line IPEC-J2 to examine the effects of oxidative stress and to estimate the antioxidant and regenerative potential of Trolox, ascorbic acid and glutathione monoethyl ester. Hydrogen peroxide and diethyl maleate affected the tight junction (zona occludens-1) distribution, significantly increased intracellular oxidative stress (CM-H2DCFDA) and decreased the monolayer integrity (transepithelial electrical resistance and FD-4 permeability), viability (neutral red) and wound healing capacity (scratch assay). Trolox (2 mM) and 1 mM ascorbic acid pre-treatment significantly reduced intracellular oxidative stress, increased wound healing capacity and reduced FD-4 permeability in oxidatively stressed IPEC-J2 cell monolayers. All antioxidant pre-treatments increased transepithelial electrical resistance and viability only in diethyl maleate-treated cells. Glutathione monoethyl ester (10 mM) pre-treatment significantly decreased intracellular oxidative stress and monolayer permeability only in diethyl maleate-treated cells. These data demonstrate that the IPEC-J2 oxidative stress model is a valuable tool to screen antioxidants before validation in piglets.
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97
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Wu SJ, Ho YC, Jiang SZ, Mi FL. Effect of tannic acid–fish scale gelatin hydrolysate hybrid nanoparticles on intestinal barrier function and α-amylase activity. Food Funct 2015; 6:2283-92. [DOI: 10.1039/c4fo01015a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tannic acid/FSGH nanoparticles can ameliorate Cu2+ ion induced intestinal epithelial TJ dysfunction without severely inhibiting the activity of digestive enzymes.
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Affiliation(s)
- Shao-Jung Wu
- Department of Chemical Engineering
- Ming Chi University of Technology
- New Taipei City 243
- Taiwan
| | - Yi-Cheng Ho
- Department of Bioagriculture Science
- National Chiayi University
- Chiayi 60004
- Taiwan
| | - Shun-Zhou Jiang
- Department of Chemical Engineering
- Ming Chi University of Technology
- New Taipei City 243
- Taiwan
| | - Fwu-Long Mi
- Department of Biochemistry and Molecular Cell Biology
- School of Medicine
- Taipei Medical University
- Taipei 110
- Taiwan
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98
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Li J, Ge R, Zhao C, Tang L, Li J, Li Q. Farrerol regulates occludin expression in hydrogen peroxide-induced EA.hy926 cells by modulating ERK1/2 activity. Eur J Pharmacol 2014; 734:9-14. [DOI: 10.1016/j.ejphar.2014.03.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 03/19/2014] [Accepted: 03/27/2014] [Indexed: 01/03/2023]
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