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Ghasemi-Dehnoo M, Amini-Khoei H, Lorigooini Z, AnjomShoa M, Bijad E, Rafieian-Kopaei M. Inhibition of TLR4, NF-κB, and INOS pathways mediates ameliorative effect of syringic acid in experimental ulcerative colitis in rats. Inflammopharmacology 2024; 32:795-808. [PMID: 38095803 DOI: 10.1007/s10787-023-01387-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 10/24/2023] [Indexed: 03/03/2024]
Abstract
OBJECTIVE Numerous therapeutics and pharmacological properties have been reported in syringic acid (SA). In this study, we aimed to evaluate effect of SA in ulcerative colitis (UC) in rats considering effect on TLR4, NF-κB, and INOS pathways. MATERIALS AND METHODS 48 Wistar rats were randomly designated into six groups (n = 8). UC was induced via intra-rectal administration of 7% acetic acid (0.8 ml). SA at doses of 10, 25, 50 mg/kg was administrated through gavage, and dexamethasone (2 mg/kg) administrated intra-peritoneally for 5 consecutive days. The macroscopic and histopathological damages as well as expression of inflammatory and apoptotic genes along with superoxide dismutase (SOD) and catalase (CAT) activities, total antioxidant capacity (TAC), nitric oxide (NO), and malondialdehyde (MDA) levels in the colon tissue were assessed. RESULTS UC led to an increase in the apoptotic and inflammatory genes, NO and MDA levels as well as decrease in TAC level, and SOD and CAT activities (p < 0.05). UC also caused severe damage, edema, inflammation, and necrosis in the colon. SA significantly reduced gene expressions of INOS, TLR4, IL-6, IL-1β, NF-κB, Caspase-3, Caspase-8, and Bax. SA ameliorated negative macroscopic and histopathologic effects of UC. SA significantly reduced MDA and NO levels, and increased TAC level and CAT activity in the colon tissue in comparison to the UC rats without treatment (p < 0.05). CONCLUSION SA via attenuation of the TLR4-NF-κB, NF-κB-INOS-NO pathways, oxidative stress, inflammation, and apoptosis of UC in rats.
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Affiliation(s)
- Maryam Ghasemi-Dehnoo
- Student Research Committee, Shahrekord University of Medical Sciences, Shahrekord, Iran
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Hossein Amini-Khoei
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Zahra Lorigooini
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Maryam AnjomShoa
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Elham Bijad
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mahmoud Rafieian-Kopaei
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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Ghasemi‐Dehnoo M, Lorigooini Z, Amini‐Khoei H, Sabzevary‐Ghahfarokhi M, Rafieian‐Kopaei M. Quinic acid ameliorates ulcerative colitis in rats, through the inhibition of two TLR4-NF-κB and NF-κB-INOS-NO signaling pathways. Immun Inflamm Dis 2023; 11:e926. [PMID: 37647443 PMCID: PMC10408368 DOI: 10.1002/iid3.926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/11/2023] [Accepted: 06/15/2023] [Indexed: 08/29/2023] Open
Abstract
OBJECTIVE In this study, the therapeutic effect of quinic acid (QA), which has anti-inflammatory activity, was investigated on acetic acid-induced colitis in male Wistar rats. METHODS Ulcerative colitis (UC) was induced in rats by acetic acid intrarectally, and the protective effects of QA in 10, 30, 60, and 100 mg/kg doses were investigated. Rats were treated for 5 days and their colon tissues were dissected out at the end. Macroscopic and histopathological examinations were performed in colon tissues. Also, the expression of inflammatory and apoptotic genes, including TLR4, IL-1β, INOS, IL-6, TNF-α, NF-κB, Caspase-3, Caspase-8, Bax, and Bcl-2, was measured. Biochemistry indices, such as malondialdehyde (MDA) and nitrite oxide (NO) content, in addition to, total antioxidant capacity (TAC), superoxide dismutase (SOD), catalase (CAT), and enzymes activities were also assessed. RESULTS Colitis increased the levels of MDA and NO, and enhanced the inflammatory and apoptotic gene expressions, while reducing the SOD and CAT enzymes activity, and TAC levels in the colitis rats. Also, results showed that colitis was associated with the infiltration of inflammatory cells, epithelium damage, and edema in colon tissue. QA significantly ameliorated histopathological indices, oxidative stress, inflammation, and apoptosis in colitis rats. CONCLUSION QA ameliorated UC through the inhibition of two TLR4-NF-κB and NF-κB-INOS-NO signaling pathways, which results in the reduction of colitis complications, including oxidative stress, inflammation, apoptosis and histopathological injuries in rats. Therefore it can be concluded, that QA exerts its therapeutic effects through antiapoptotic, antioxidant, and anti-inflammatory properties.
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Affiliation(s)
- Maryam Ghasemi‐Dehnoo
- Medical Plants Research Center, Basic Health Sciences InstituteShahrekord University of Medical SciencesShahrekordIran
| | - Zahra Lorigooini
- Medical Plants Research Center, Basic Health Sciences InstituteShahrekord University of Medical SciencesShahrekordIran
| | - Hossein Amini‐Khoei
- Medical Plants Research Center, Basic Health Sciences InstituteShahrekord University of Medical SciencesShahrekordIran
| | - Milad Sabzevary‐Ghahfarokhi
- Medical Plants Research Center, Basic Health Sciences InstituteShahrekord University of Medical SciencesShahrekordIran
| | - Mahmoud Rafieian‐Kopaei
- Medical Plants Research Center, Basic Health Sciences InstituteShahrekord University of Medical SciencesShahrekordIran
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Thilakarathna WPDW, Langille MGI, Rupasinghe HPV. Hepatotoxicity of polymeric proanthocyanidins is caused by translocation of bacterial lipopolysaccharides through impaired gut epithelium. Toxicol Lett 2023; 379:35-47. [PMID: 36935082 DOI: 10.1016/j.toxlet.2023.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/26/2023] [Accepted: 03/08/2023] [Indexed: 03/19/2023]
Abstract
Polymeric proanthocyanidins (P-PAC) induced hepatotoxicity in C57BL/6 mice. Mice were supplemented with P-PAC alone or with a mixture of probiotic bacteria (PB), Lactobacillus, Bifidobacterium, and Akkermansia muciniphila for 14 consecutive days. The liver tissues of sacrificed mice were analyzed by mass spectrometry to identify and quantify the P-PAC metabolites. Potential P-PAC metabolites, 2-hydroxyphenylacetic acid and pyrocatechol were detected in higher concentrations and 4-hydroxybenzoic acid was detected exclusively in the mice supplemented with P-PAC and PB. Supplementation with P-PAC alone or with PB caused no shift in the α-diversity of mice gut microbiota. P-PAC induced nonalcoholic steatohepatitis in mice through increasing liver exposure to intestinal bacterial lipopolysaccharides by reducing expression of gut epithelial tight junction proteins, claudin-3 and occludin. Lipopolysaccharide concentrations in the livers of mice supplemented with P-PAC were significantly high compared to the control mice. Furthermore, P-PAC downregulated the expressions of claudin-3 and claudin-4 tight junction proteins in cultured Caco-2 cell monolayers. PB biotransformed P-PAC into bioavailable metabolites and potentially reduced the toxicity of P-PAC. The toxicity of P-PAC and their synbiotics need to be critically evaluated for the safety of human consumption.
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Affiliation(s)
- Wasitha P D W Thilakarathna
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, Nova Scotia, Canada
| | - Morgan G I Langille
- Department of Pharmacology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - H P Vasantha Rupasinghe
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, Nova Scotia, Canada; Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.
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Zhou Y, Feng Y, Yang L, Zheng P, Hang L, Jiang F, Yuan J, Zhu L. High-fat diet combined with dextran sulfate sodium failed to induce a more serious NASH phenotype than high-fat diet alone. Front Pharmacol 2022; 13:1022172. [PMID: 36238563 PMCID: PMC9551200 DOI: 10.3389/fphar.2022.1022172] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 08/30/2022] [Indexed: 12/03/2022] Open
Abstract
Background and Aims: Animal models are essential tools to investigate the pathogenesis of diseases. Disruption in the intestinal epithelial barrier and gut vascular barrier is an early event in the development of non-alcoholic fatty liver disease (NAFLD). Intestinal epithelial barrier can be destroyed by dextran sulfate sodium (DSS) oral administration. High fat diet (HFD)-induced non-alcoholic steatohepatitis (NASH) rat model has been widely used. Recently, the combination of HFD with DSS induced NASH model has also been reported. The present study aimed to evaluate whether this composite NASH animal model is more ideal than that induced by HFD alone. Methods: Rats were divided into control, HFD and HFD combined with DSS (DSS + HFD) groups. They were fed with routine diet, high-fat diet, and HFD combined with DSS drinking, respectively, for 22 weeks. Histopathological analysis (HE staining, Oil-Red O staining, Masson staining), lipid parameters testing (TG, TC, GLU, NEFA, TRIG, LDL, HDL), testing on indicators of inflammation (TNF-α, ALT, AST, ALP, LDH) and oxidative stress (MDA, SOD, CAT) were performed. Results: Rats in HFD and DSS + HFD group displayed increase in the body weight, liver weight, lipids accumulation and the levels of TNF-α, ALT, AST, ALP, MDA in serum and liver accompanied with impaired glucose tolerance, obvious hepatitis, and decreased levels of SOD and CAT in serum and liver compared to those in control group. Moreover, in the DSS + HFD group, but not in the HFD group, proliferation of fibrous tissue in the portal area and the hepatic lobules was found. Conclusion: The addition of DSS on high-fat diet did not exacerbate lipid accumulation and inflammation, but induced NASH-related liver fibrosis.
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Affiliation(s)
- Yan Zhou
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ya Feng
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lili Yang
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Peiyong Zheng
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lu Hang
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Fengru Jiang
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jianye Yuan
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Jianye Yuan, ; Lixin Zhu,
| | - Lixin Zhu
- Department of Colorectal Surgery, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Jianye Yuan, ; Lixin Zhu,
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5
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Azmy AM, Abd Elbaki BT, Ali MA, Mahmoud AA. Effect of ozone versus naringin on testicular injury in experimentally induced ulcerative colitis in adult male albino rats. Ultrastruct Pathol 2022; 46:439-461. [DOI: 10.1080/01913123.2022.2132337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Abeer M. Azmy
- Medical Histology and Cell Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Bassant T. Abd Elbaki
- Medical Histology and Cell Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mohammed A. Ali
- Medical Histology and Cell Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Abeer A Mahmoud
- Medical Histology and Cell Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Comparison of Selenium-Enriched Lactobacillusparacasei, Selenium-Enriched Yeast, and Selenite for the Alleviation of DSS-Induced Colitis in Mice. Nutrients 2022; 14:nu14122433. [PMID: 35745163 PMCID: PMC9231187 DOI: 10.3390/nu14122433] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/03/2022] [Accepted: 06/10/2022] [Indexed: 02/04/2023] Open
Abstract
Patients with inflammatory bowel disease (IBD) have been found to have decreased immune function. Selenium (Se) is an essential trace element that is beneficial for human health, which has a significant stimulating effect on immune function. We compared the effects of different Se forms on the alleviation of colitis in DSS-induced mice. Moreover, we also aimed to determine whether Se-enriched Lactobacillus paracasei CCFM 1089 could be used as a new organic Se supplement. Different Se supplements (Se-enriched L. paracasei CCFM 1089, Se-enriched yeast and sodium selenite) were given to Se-deficient mice suffering from colitis. Se-enriched L. paracasei CCFM 1089, which is based on selenocysteine (SeCys), had similar effects in terms of reducing oxidative stress and inhibiting pro-inflammatory factors to Se-enriched yeast; however, selenase activity in the Se-enriched L. paracasei CCFM 1089-treated mice was higher than that in other treatment groups. In addition, Se-enriched L. paracasei CCFM 1089 could better protect the intestinal mucosa, which increased the expression of tight junction proteins (ZO-1 and occludin) in mice. Thus Se-enriched L. paracasei CCFM 1089 was shown to alleviate IBD, suggesting that it has potential as a good organic Se supplement.
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Xie Y, Ma Y, Cai L, Jiang S, Li C. Reconsidering Meat Intake and Human Health: A Review of Current Research. Mol Nutr Food Res 2022; 66:e2101066. [PMID: 35199948 DOI: 10.1002/mnfr.202101066] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/13/2022] [Indexed: 12/19/2022]
Abstract
Meat consumption is gradually increasing and its impact on health has attracted widespread attention, resulting in epidemiological studies proposing a reduction in meat and processed meat intake. This review briefly summarizes recent advances in understanding the effects of meat or processed meat on human health, as well as the underlying mechanisms. Meat consumption varies widely among individuals, populations, and regions, with higher consumption in developed countries than in developing countries. However, increasing meat consumption may not be the main cause of increasing incidence of chronic disease, since the development of chronic disease is a complex physiological process that involves many factors, including excessive total energy intake and changes in food digestion processes, gut microbiota composition, and liver metabolism. In comparison, unhealthy dietary habits and a sedentary lifestyle with decreasing energy expenditure are factors more worthy of reflection. Meat and meat products provide high-value protein and many key essential micronutrients. In short, as long as excessive intake and overprocessing of meats are avoided, meat remains an indispensable source of nutrition for human health.
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Affiliation(s)
- Yunting Xie
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MARA, Jiangsu Innovative Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yafang Ma
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MARA, Jiangsu Innovative Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Linlin Cai
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MARA, Jiangsu Innovative Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shuai Jiang
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MARA, Jiangsu Innovative Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Chunbao Li
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MARA, Jiangsu Innovative Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
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8
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Li H, Che H, Xie J, Dong X, Song L, Xie W, Sun J. Supplementary selenium in the form of selenylation α-D-1,6-glucan ameliorates dextran sulfate sodium induced colitis in vivo. Int J Biol Macromol 2022; 195:67-74. [PMID: 34896151 DOI: 10.1016/j.ijbiomac.2021.11.189] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/17/2021] [Accepted: 11/27/2021] [Indexed: 02/06/2023]
Abstract
The deficiency of selenium has been found in clinical IBD patients and supplementation selenium is recognized as beneficial for colitis treatment. In this study, an organic selenium compound-selenylation α-D-1,6-glucan (sCPA) was prepared, and the effect of sCPA on DSS induced colitis mice was investigated. The results suggested that sCPA prevented the weight loss, colon length shortening, and stool loose of colitis mice. It protected colon mucosal barrier by promoting tight junction protein ZO-1 and Occludin expression. Moreover, sCPA reduced oxidative stress via regulating SOD and MDA levels, and decreased the contents of inflammatory proteins NF-κB and NLRP3 and adjusted TNF-α, IFN-γ, IL-1β, and IL-10 inflammatory cytokines. Furthermore, sCPA repaired intestinal microbiota composition especially Bacteroidetes, Firmicutes, Proteobacteria, and Actinobacteria that altered by DSS in colitis mice. Meanwhile, SCFAs produced by gut microbiota were restored by sCPA close to the level in the normal group. In conclusion, these findings indicated that the sCPA might be a potential dietary selenium supplementation for the prevention and treatment of colitis.
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Affiliation(s)
- Hongyan Li
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of biochemical engineering, Shandong, Qingdao 266042, China.
| | - Hongxia Che
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of biochemical engineering, Shandong, Qingdao 266042, China
| | - Jingwen Xie
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
| | - Xiufang Dong
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of biochemical engineering, Shandong, Qingdao 266042, China
| | - Lin Song
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of biochemical engineering, Shandong, Qingdao 266042, China
| | - Wancui Xie
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China; Shandong Provincial Key Laboratory of biochemical engineering, Shandong, Qingdao 266042, China
| | - Jinyuan Sun
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, China.
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Gut Microbiome and Organ Fibrosis. Nutrients 2022; 14:nu14020352. [PMID: 35057530 PMCID: PMC8781069 DOI: 10.3390/nu14020352] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/07/2022] [Accepted: 01/08/2022] [Indexed: 02/07/2023] Open
Abstract
Fibrosis is a pathological process associated with most chronic inflammatory diseases. It is defined by an excessive deposition of extracellular matrix proteins and can affect nearly every tissue and organ system in the body. Fibroproliferative diseases, such as intestinal fibrosis, liver cirrhosis, progressive kidney disease and cardiovascular disease, often lead to severe organ damage and are a leading cause of morbidity and mortality worldwide, for which there are currently no effective therapies available. In the past decade, a growing body of evidence has highlighted the gut microbiome as a major player in the regulation of the innate and adaptive immune system, with severe implications in the pathogenesis of multiple immune-mediated disorders. Gut microbiota dysbiosis has been associated with the development and progression of fibrotic processes in various organs and is predicted to be a potential therapeutic target for fibrosis management. In this review we summarize the state of the art concerning the crosstalk between intestinal microbiota and organ fibrosis, address the relevance of diet in different fibrotic diseases and discuss gut microbiome-targeted therapeutic approaches that are current being explored.
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Liu YF, Niu GC, Li CY, Guo JB, Song J, Li H, Zhang XL. Mechanism of Ulcerative Colitis-Aggravated Liver Fibrosis: The Activation of Hepatic Stellate Cells and TLR4 Signaling Through Gut-Liver Axis. Front Physiol 2021; 12:695019. [PMID: 34603071 PMCID: PMC8484790 DOI: 10.3389/fphys.2021.695019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 08/25/2021] [Indexed: 12/12/2022] Open
Abstract
Background: The progression of liver disorders is frequently associated with inflammatory bowel disease through the gut-liver axis. However, no direct evidence showed the mechanisms of ulcerative colitis (UC) in the development of liver fibrosis per se. Thus, this study aimed to evaluate the effects of UC on liver fibrosis and its potential mechanism in the experimental model. Methods: Male C57BL/6 mice were allocated into five groups (n = 10 per group) to receive either drinking water (control), 2% dextran sulfate sodium (DSS), olive oil, carbon tetrachloride (CCl4) or DSS + CCl4 for 4 cycles. Blood was collected for biochemical analysis. Colons were excised for the evaluation of colon length and morphological score. Liver, colon, and mesenteric lymph nodes (MLNs) were collected for histopathological staining, expression analysis, and bacterial translocation assay to evaluate the inflammation, fibrosis, the activation of hepatic stellate cells (HSCs), and gut barrier function. Results: DSS caused severe colitis in mice treated or treated with CCl4, as evident from the elevation of disease activity index (DAI), histological abnormalities, and increased pro-inflammatory cytokines (TNF-α, IFN-γ, and IL-17A). Histopathological staining revealed that DSS treatment aggravated the CCl4-induced extracellular matrix deposition, liver fibrosis, and inflammation in mice. Additionally, biochemical and expression analysis indicated the DSS treatment caused the increase of hydroxyproline and pro-inflammatory cytokines, as well as the abnormal liver function indexes in CCl4-induced mice. Gut barrier function was impaired in DSS- and DSS + CCl4-treated mice, manifesting as the increase in bacterial translocation and lipopolysaccharide level, and the reduction in tight junction proteins (occluding, claudin-1 and ZO-1) expression. Further, the activations of HSCs and TLR4 signaling pathway were observed after DSS + CCl4 treatment, presenting with the increase in expression of α-SMA, vimentin, TGF-β, collagen type I, collagen type II, TIMP-2, TLR4, TRAF6, and NF-κB p65, and a decrease in GFAP and MMP-2 expression. Conclusion: The present study verified that UC aggravated CCl4-induced liver injury, inflammation, and fibrosis in mice through the gut-liver axis. Gut barrier dysfunction in UC leads to bacterial translocation and elevated lipopolysaccharide, which may promote the activation of TLR4 signaling and HSCs in the liver.
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Affiliation(s)
- Yu-Feng Liu
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China.,Department of Gastroenterology, Dingzhou People's Hospital of Hebei Province, Dingzhou, China
| | - Guo-Chao Niu
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Chen-Yang Li
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jin-Bo Guo
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jia Song
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Hui Li
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiao-Lan Zhang
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
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Wen Y, Xiao H, Liu Y, Yang Y, Wang Y, Xu S, Huang S, Hou S, Liang J. Polysaccharides from Dendrobium officinale ameliorate colitis-induced lung injury via inhibiting inflammation and oxidative stress. Chem Biol Interact 2021; 347:109615. [PMID: 34363819 DOI: 10.1016/j.cbi.2021.109615] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/20/2021] [Accepted: 08/04/2021] [Indexed: 01/13/2023]
Abstract
It has been reported that Dendrobium officinale polysaccharides (DOPS) could alleviate colitis in animal model and suppress the activation of NLRP3 inflammasome and β-arrestin1 in vitro. However, it remains unclear whether DOPS has effect on protecting against colitis-induced pulmonary injury. The purpose of this study was to explore the protective effect and mechanism of DOPS on colitis-induced lung injury. A dextran sodium sulfate (DSS)-induced mice colitis model and lipopolysaccharide (LPS)-stimulated BEAS-2B cells model were applied in this study. The results showed that DOPS treatment restored histopathological changes, reduced inflammatory cells infiltration, pro-inflammatory cytokines levels, reactive oxygen species (ROS) formation and MDA generation, and increased anti-oxidative enzymes activities including SOD and GSH-Px in colitis mice. Further investigation showed that DOPS significantly inhibited the protein expression of TLR4, and apparently up-regulated proteins expressions of nuclear-Nrf2, HO-1 and NQO-1 in lung tissues of colitis mice and in BEAS-2B cells. These results indicated that DOPS significantly inhibited inflammation and oxidative stress to alleviate colitis-induced secondary lung injury, and its mechanisms are closely related to the inhibition of TLR4 signaling pathway and the activation of Nrf2 signaling pathway. DOPS may be a promising drug for alleviating colitis-induced lung injury.
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Affiliation(s)
- Yifan Wen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Hongyu Xiao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Ying Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Yiqi Yang
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510006, PR China
| | - Yumin Wang
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, PR China
| | - Shijie Xu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China
| | - Song Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China.
| | - Shaozhen Hou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China.
| | - Jian Liang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong, PR China.
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Study on the additive protective effect of PGLYRP3 and Bifidobacterium adolescentis Reuter 1963 on severity of DSS-induced colitis in Pglyrp3 knockout (Pglyrp3 -/-) and wild-type (WT) mice. Immunobiology 2020; 226:152028. [PMID: 33242664 DOI: 10.1016/j.imbio.2020.152028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/05/2020] [Accepted: 11/02/2020] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND AIMS Pglyrp3 is a bactericidal innate immunity protein known to sustain the habitual gut microbiome and protect against experimental colitis. Intestinal inflammation and metaflammation are commonly associated with a marked reduction of commensal bifidobacteria. Whether Pglyrp3 and bifidobacteria interact synergistically or additively to alleviate metaflammation is unknown. We investigated the extent to which Pglyrp3 and bifidobacteria regulate metaflammation and gut bacterial dysbiosis in DSS-induced mouse models of intestinal inflammation. MATERIAL & METHODS 8-10 weeks old male mice were used. In both WT and Pglyrp3 -/- experiments, the mice were randomly divided into three groups of 16 mice per group: (1) a control group receiving sterile tap water, (2) an experimental group receiving sterile tap water supplemented with only 5% DSS, and (3) an experimental group receiving sterile tap water supplemented with 5% DSS and 1 × 109 CFU/ml of Bifidobacterium adolescentis (B.a.) for 7 days. Wild-type (WT) littermates of the respective gene (i.e. Pglyrp3) were used as controls throughout the study. Clinical signs of general health and inflammation were monitored daily. Faecal pellet samples were analysed by qRT-PCR for microbial composition. Histology of relevant organs was carried out on day 8. Metabolic parameters and liver inflammation were determined in serum samples. RESULTS Intestinal inflammation in mice of group 2 were significantly increased compared to those of control group 1. There was a significant difference in mean scores for inflammation severity between DSS-treated WT and DSS-treated Pglyrp3 -/- mice. Buildup of key serum metabolic markers (cholesterol, triglyceride and glucose) was set off by colonic inflammation. qRT-PCR quantification showed that DSS significantly decreased the Clostridium coccoides and Bifidobacterium cell counts while increasing those of Bacteroides group in both WT and Pglyrp3 -/- mice. These manifestations of DSS-induced dysbiosis were significantly attenuated by feeding B.a. Both the local and systemic ill-being of the mice alleviated when they received B.a. DISCUSSION This study shows that Pglyrp3 facilitates recognition of bifidobacterial cell wall-derived peptidoglycan, thus leading additively to a reduction of metaflammation through an increase in the number of bifidobacteria, which were able to mitigate intestinal immunopathology in the context of Pglyrp3 blockade.
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Mees M, Meurer MC, Mariano LNB, Boeing T, Somensi LB, Mariott M, Niero R, Cechinel-Filho V, Andrade SFD, Duarte LP, Sousa GFD, de Souza P, Da Silva LM. Maytenus robusta Reissek, a medicinal plant popularly used to treat digestive diseases, promotes ameliorative effects in colon and liver of mice exposed to dextran sulfate sodium. JOURNAL OF ETHNOPHARMACOLOGY 2020; 261:113180. [PMID: 32730884 DOI: 10.1016/j.jep.2020.113180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 06/25/2020] [Accepted: 07/10/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Maytenus robusta Reissek (Celesteraceae), popularly named as cafezinho do mato or coração de bugre, is employed to treat inflammatory digestive diseases in the south of Brazil. However, despite popular usage, the effects of this species on an experimental model of ulcerative colitis are unknown. AIM OF THE STUDY To evaluate the effects of M. robusta extract (HEMR) on colon and liver from mice with colitis induced by dextran sulfate sodium (DSS). MATERIALS AND METHODS Firstly, the cytotoxicity of HEMR and its effects on ROS and nitrite production in IEC-6 cells were evaluated. The experimental colitis was established by adding 3% DSS on drinking water of mice and the effects of HEMR (1-100 mg/kg, p.o, once a day by 7 days) in colonic and hepatic tissues were analyzed. RESULTS The HEMR (1-100 μg/mL) did not alter the cell viability but reduced nitrite production of IEC-6 stimulated by LPS. Moreover, HEMR (100 mg/Kg) attenuates macro and microscopic alterations in the colon from mice exposed to DSS, as evidenced by a reduction of the colon shortening, attenuation of the epithelial erosion, submucosal edema and preservation of the Goblet cells integrity, as well as the restoration of mucin depletion. The treatment with HEMR increased GSH amount, reduced LOOH levels and normalizes CAT activity in the colon. The group treated with HEMR showed increased GST activity, reduced MPO activity and decreased inflammatory cytokines secretion (TNF and IL-6) in the colonic tissue. In the liver, HEMR increased GST activity, decreased the GPx activity and reduced IL-6 levels. Furthermore, the HEMR treatment reduced AST and ALT serum levels in mice exposed to DSS. Finally, the HEMR was able to reduce intestinal transit. CONCLUSIONS HEMR treatment minimizes inflammation of the colon and maintaining the antioxidant homeostasis. In addition, HEMR may be a potential tool to prevent hepatic injury secondary to ulcerative colitis.
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Affiliation(s)
- Mariéli Mees
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil
| | - Marianne Caroline Meurer
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil
| | - Luísa Nathalia Bolda Mariano
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil
| | - Thaise Boeing
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil
| | - Lincon Bordignon Somensi
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil
| | - Marihá Mariott
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil
| | - Rivaldo Niero
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil
| | - Valdir Cechinel-Filho
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil
| | - Sérgio Faloni de Andrade
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil; Universidade Lusófona CBIOS - Research Center for Biosciences and Health Technologies, Av Campo Grande, 376, 1749-024, Lisboa, Portugal
| | - Lucienir Pains Duarte
- Departamento de Química, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil
| | - Grasiely Faria de Sousa
- Departamento de Química, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil
| | - Priscila de Souza
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil
| | - Luísa Mota Da Silva
- Programa de Pós-Graduação Em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade Do Vale Do Itajai (UNIVALI) - Campus, Itajai, Santa Catarina, Rua Uruguai, 458, Centro, CEP: 88302-901, Brazil.
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Piotrowska M, Swierczynski M, Fichna J, Piechota-Polanczyk A. The Nrf2 in the pathophysiology of the intestine: Molecular mechanisms and therapeutic implications for inflammatory bowel diseases. Pharmacol Res 2020; 163:105243. [PMID: 33080322 DOI: 10.1016/j.phrs.2020.105243] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/29/2020] [Accepted: 10/04/2020] [Indexed: 12/14/2022]
Abstract
Nrf2 (nuclear factor erythroid 2-related factor 2) is a stress-responsive transcription factor, associated with cellular homeostasis. Under normal conditions Nrf2 is kept in the cytoplasm by Kelch-like ECH-associated protein 1 (Keap1) which facilitates its degradation. Meanwhile, oxidative or electrophilic stress trigger Keap1 dissociation from the Nrf2/Keap1 complex and Nrf2 translocation to the nucleus where it induces the expression of numerous anti-oxidative and anti-inflammatory genes. The Nrf2/Keap1 axis plays a crucial role in the development of gastrointestinal (GI) tract and the maintenance of its proper functionality. This axis also seems to be a promising candidate for prevention of inflammatory bowel diseases (IBD), including ulcerative colitis (UC) and Crohn's disease (CD), as well as their severe complications such as intestinal fibrosis and colorectal cancer. This review focuses on the role of Nrf2/Keap1 in 1) the development and proper functionality of GI tract, 2) the pathophysiology of GI diseases and their long-term complications, 3) the effectiveness of currently used drugs and non-conventional treatments which influence Nrf2/Keap1 and are potentially effective in IBD treatment, as well as 4) the effect of gut microbiota on Nrf2/Keap1 pathway in IBD.
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Affiliation(s)
- Marta Piotrowska
- Department of Biochemistry, Faculty of Medicine, Medical UniverSity of Lodz, Poland
| | - Mikolaj Swierczynski
- Department of Biochemistry, Faculty of Medicine, Medical UniverSity of Lodz, Poland
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical UniverSity of Lodz, Poland
| | - Aleksandra Piechota-Polanczyk
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland.
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15
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Wanes D, Jabri MA, Tounsi H, Rtibi K, Zouari N, Hajji N, Jridi M, Abdellaoui A, Sebai H. Chemical Characterization of Bioactive Components of Rosa canina Extract and Its Protective Effect on Dextran Sulfate Sodium-Induced Intestinal Bowel Disease in a Mouse Model. J Med Food 2020; 23:1109-1119. [PMID: 32379993 DOI: 10.1089/jmf.2019.0191] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Rosa canina is a well-known medicinal plant used in folk remedy that alleviates various disorders, including inflammation, gastritis, and diarrhea. The objective of this investigation was to identify and quantify the phenolic components of R. canina methanolic extract (RCME) and to determine its protective action with dextran sulfate sodium (DSS)-generated mice colitis model. RCME chemical analysis was done using Liquid Chromatography-Electrospray Ionization-Tandem Mass Spectrometry, and experimental animals received RCME at different doses before colitis induction by oral DSS administration during 7 days. Another group received sulfasalazine as a positive control. Colitis damages and RCME benefits were assessed using histopathological and biochemical changes and improvements. Many phenolic compounds have been identified. In addition, the DSS intoxication induced an alteration of colonic epithelium associated with an oxidative stress state. DSS administration led to an increase or decrease of intracellular mediators such as free iron and ionizable calcium. RCME consumption effectively protected against colonic histological/biochemical alterations induced by DSS intoxication providing support for the traditional use of this plant.
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Affiliation(s)
- Dalanda Wanes
- Laboratory of Functional Physiology and Valorization of Bioresources, Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
| | - Mohamed-Amine Jabri
- Laboratory of Functional Physiology and Valorization of Bioresources, Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
| | - Haifa Tounsi
- Laboratory of Human and Experimental Pathological Anatomy, Pasteur Institute of Tunis, Tunisia
| | - Kais Rtibi
- Laboratory of Functional Physiology and Valorization of Bioresources, Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
| | - Nacim Zouari
- Laboratory of Enzymatic Engineering and Microbiology, National School of Engineers of Sfax, University of Sfax, Sfax, Tunisia
| | - Najla Hajji
- Laboratory of Functional Physiology and Valorization of Bioresources, Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
| | - Mourad Jridi
- Laboratory of Enzymatic Engineering and Microbiology, National School of Engineers of Sfax, University of Sfax, Sfax, Tunisia
| | - Afifa Abdellaoui
- Laboratory of Human and Experimental Pathological Anatomy, Pasteur Institute of Tunis, Tunisia
| | - Hichem Sebai
- Laboratory of Functional Physiology and Valorization of Bioresources, Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
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Postovalova EA, Makarova OV, Kosyreva AM, Dzhalilova DS. Hypoxia is a key mechanism for regulating inflammation in ulcerative colitis. RUSSIAN OPEN MEDICAL JOURNAL 2020. [DOI: 10.15275/rusomj.2020.0101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Intestinal bowel diseases (IBD), including ulcerative colitis (UC), is the group of difficult to diagnose widespread among the population diseases. Pathogenesis of the disease is associated with a complex interaction of the genetic factors, the environment, the microbiome and the unpredicted reaction of the immune system, and the existing treatment methods are not effective enough. It is known, that hypoxia plays a key role in both system and local inflammatory reactions, mainly due to microcirculatory disorders and disseminated intravascular coagulation. Therefore a lot of studies have demonstrated that severity of any inflammatory diseases, including Crohn's disease (CD) and UC depends on hypoxia resistance. In this review we discussed microcirculation of blood and physiological hypoxia in the intestine, the role of hypoxia-inducible factors in the development of IBD and UC, as well as their influence on the severity of the inflammatory process. Authors described the protective effect of various PHD inhibitors and its benefits and disadvantages, so as new approaches of searching of very specific low molecular weight substanses as drugs for the control of IBD and UC.
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17
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Choi EK, Aring L, Das NK, Solanki S, Inohara N, Iwase S, Samuelson LC, Shah YM, Seo YA. Impact of dietary manganese on experimental colitis in mice. FASEB J 2020; 34:2929-2943. [PMID: 31908045 PMCID: PMC8103308 DOI: 10.1096/fj.201902396r] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/04/2019] [Accepted: 12/15/2019] [Indexed: 12/18/2022]
Abstract
Diet plays a significant role in the pathogenesis of inflammatory bowel disease (IBD). A recent epidemiological study has shown an inverse relationship between nutritional manganese (Mn) status and IBD patients. Mn is an essential micronutrient required for normal cell function and physiological processes. To date, the roles of Mn in intestinal homeostasis remain unknown and the contribution of Mn to IBD has yet to be explored. Here, we provide evidence that Mn is critical for the maintenance of the intestinal barrier and that Mn deficiency exacerbates dextran sulfate sodium (DSS)-induced colitis in mice. Specifically, when treated with DSS, Mn-deficient mice showed increased morbidity, weight loss, and colon injury, with a concomitant increase in inflammatory cytokine levels and oxidative and DNA damage. Even without DSS treatment, dietary Mn deficiency alone increased intestinal permeability by impairing intestinal tight junctions. In contrast, mice fed a Mn-supplemented diet showed slightly increased tolerance to DSS-induced experimental colitis, as judged by the colon length. Despite the well-appreciated roles of intestinal microbiota in driving inflammation in IBD, the gut microbiome composition was not altered by changes in dietary Mn. We conclude that Mn is necessary for proper maintenance of the intestinal barrier and provides protection against DSS-induced colon injury.
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Affiliation(s)
- Eun-Kyung Choi
- Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Luisa Aring
- Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Nupur K. Das
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Sumeet Solanki
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Naohiro Inohara
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Shigeki Iwase
- Department of Human Genetics, University of Michigan, Ann Arbor, MI, USA
| | - Linda C. Samuelson
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Yatrik M. Shah
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Young Ah Seo
- Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
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18
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Arda-Pirincci P, Sacan O, Ozal-Coskun C, Aykol-Celik G, Karabulut-Bulan O, Yanardag R, Bolkent S. Galectin-1 exhibits a protective effect against hepatotoxicity induced by dextran sulfate sodium in mice. Hum Exp Toxicol 2019; 39:423-432. [PMID: 31789064 DOI: 10.1177/0960327119891224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Galectin-1 is an important mediator that regulates the T-cell-mediated immune response. It has many other biological functions such as cell growth, immunomodulation, and wound healing. The aim of this study was to reveal the role of galectin-1 on liver morphology, cell proliferation, apoptosis, inflammatory and anti-inflammatory mediators, oxidative stress, and antioxidant system in colitis-mediated hepatotoxicity induced by dextran sulfate sodium (DSS). In the present study, adult mice were divided into four groups: The control group intraperitoneally injected with phosphate buffer saline (I), the group which was orally administered with DSS (II), the control group which was injected with galectin-1 (III), and the group which was given DSS and galectin-1 (IV). DSS administration caused degenerative changes and diffuse necrotic damage, an increase in caspase-3 and cyclooxygenase-2 expression, the levels of lipid peroxidation and tumor necrosis factor-alpha, lactate dehydrogenase, and myeloperoxidase activities, and a decrease in cell proliferation, interleukin-10 levels, and antioxidant system parameters in liver tissues. Treatment of DSS group with galectin-1 reversed these effects and prevented liver damage. This study showed that galectin-1 has proliferative, antiapoptotic, anti-inflammatory, and antioxidant effects against DSS-induced liver injury in mice. It is expected considering all results of this study that galectin-1 may be useful as a protective agent against liver toxicity.
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Affiliation(s)
- P Arda-Pirincci
- Division of Molecular Biology, Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - O Sacan
- Division of Biochemistry, Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - C Ozal-Coskun
- Section of Biology, Institute of Graduate Studies in Sciences, Istanbul University, Istanbul, Turkey
| | - G Aykol-Celik
- Section of Biology, Institute of Graduate Studies in Sciences, Istanbul University, Istanbul, Turkey
| | - O Karabulut-Bulan
- Division of General Biology, Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - R Yanardag
- Division of Biochemistry, Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - S Bolkent
- Division of Molecular Biology, Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey
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Hussein RM, Saleh H. Promising therapeutic effect of gold nanoparticles against dinitrobenzene sulfonic acid-induced colitis in rats. Nanomedicine (Lond) 2018; 13:1657-1679. [PMID: 30085904 DOI: 10.2217/nnm-2018-0009] [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: 12/27/2022] Open
Abstract
Aim: The aim of this study is to evaluate the therapeutic effect of two different doses of naked gold nanoparticles (AuNPs) in the experimental colitis in rats. Materials & methods: Colitis was induced in rats by single intracolonic instillation of dinitro-benzene sulfonic acid (250 μl DNBS-25 mg/rat). 4 days later the rats were intravenously injected with a single dose of AuNPs 40 and 400 μg/kg of size 16-25 nm. Results: In comparison with dinitro-benzene sulfonic acid-colitis group, the exposure to AuNPs for 72 h ameliorated the liver and kidney functions, increased the regenerative capacity of damaged colon tissues, suppressed the inflammatory cytokine response and diminished the colonic malondialdehyde and myeloperoxidase activities. In addition, there was a remarkable improvement in the antioxidant defense system. Conclusion: Our study suggested a new therapy for experimental colitis without noticeable drawbacks.
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Affiliation(s)
- Rehab M Hussein
- Department of Zoology, Faculty of Science, Cairo University, PO Box 12613, Giza, Egypt
| | - Hanan Saleh
- Department of Zoology, Faculty of Science, Cairo University, PO Box 12613, Giza, Egypt
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20
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Gupta RA, Motiwala MN, Mahajan UN, Sabre SG. Protective effect of Sesbania grandiflora on acetic acid induced ulcerative colitis in mice by inhibition of TNF-α and IL-6. JOURNAL OF ETHNOPHARMACOLOGY 2018; 219:222-232. [DOI: 10.1016/j.jep.2018.02.043] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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21
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Vasseur P, Pohin M, Jégou J, Favot L, Venisse N, Mcheik J, Morel F, Lecron J, Silvain C. Liver fibrosis is associated with cutaneous inflammation in the imiquimod-induced murine model of psoriasiform dermatitis. Br J Dermatol 2018; 179:101-109. [DOI: 10.1111/bjd.16137] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2017] [Indexed: 12/11/2022]
Affiliation(s)
- P. Vasseur
- Nord Deux-Sèvres Hospital; Thouars France
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines EA 4331; University of Poitiers; Poitiers France
| | - M. Pohin
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines EA 4331; University of Poitiers; Poitiers France
| | - J.F. Jégou
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines EA 4331; University of Poitiers; Poitiers France
| | - L. Favot
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines EA 4331; University of Poitiers; Poitiers France
| | - N. Venisse
- University Hospital of Poitiers; Poitiers France
- INSERM; CIC1402; Poitiers France
| | - J. Mcheik
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines EA 4331; University of Poitiers; Poitiers France
- University Hospital of Poitiers; Poitiers France
| | - F. Morel
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines EA 4331; University of Poitiers; Poitiers France
| | - J.C. Lecron
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines EA 4331; University of Poitiers; Poitiers France
- University Hospital of Poitiers; Poitiers France
| | - C. Silvain
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines EA 4331; University of Poitiers; Poitiers France
- University Hospital of Poitiers; Poitiers France
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22
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Zong S, Pu Y, Li S, Xu B, Zhang Y, Zhang T, Wang B. Beneficial anti-inflammatory effect of paeonol self-microemulsion-loaded colon-specific capsules on experimental ulcerative colitis rats. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:324-335. [DOI: 10.1080/21691401.2017.1423497] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Shiyu Zong
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yiqiong Pu
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Suyun Li
- School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Benliang Xu
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yong Zhang
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tong Zhang
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bing Wang
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Li R, Zhao L, Zhang L, Chen M, Dong C, Cai Z. DNA damage and repair, oxidative stress and metabolism biomarker responses in lungs of rats exposed to ambient atmospheric 1-nitropyrene. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 54:14-20. [PMID: 28668703 DOI: 10.1016/j.etap.2017.06.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/17/2017] [Accepted: 06/19/2017] [Indexed: 05/03/2023]
Abstract
1-Nitropyrene (1-NP) is a mutagenic and carcinogenic pollutant very widespread in the environment. However, the relative investigations on genotoxicity, oxidative stress and metabolic enzymes in lungs of mammalian caused by 1-NP have not been fully established. In this study, the 1-NP solutions at 3 dosages (1.0×10-5, 4.0×10-5 and 1.6×10-4mg/kg body weight) were respectively given to rats by the intratracheal instillation. The responses of 1-NP on DNA damage and repair, oxidative stress and metabolism biomarkers in rat lungs after exposure to 1-NP were measured. The results showed 1-NP at three dosages induced obvious DNA strand breaks, 8-OH-dG formation and DNA-protein cross-link in rat lungs compared with the control. Higher dosage 1-NP (4.0×10-5 and 1.6×10-4mg/kg body weight) greatly activated DNA repair gene OGG1 and inhibited MTH1 and XRCC1 expressions, and they significantly elevated the levels of GADD153, heme oxygenase-1 and malondialdehyde and decreased SOD activity, accompanied by the increases of CYP450, CYP1A1, CYP1A2 and GST levels. These results suggested the genotoxicity of 1-NP might rely on 1-NP-caused DNA damage and its combined effects on the suppression of DNA repair and the enhancement of oxidative stress and metabolic enzyme activity.
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Affiliation(s)
- Ruijin Li
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China
| | - Lifang Zhao
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China
| | - Li Zhang
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China
| | - Minghui Chen
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China.
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong Special Administrative Region, PR China.
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Farombi EO, Adedara IA, Ajayi BO, Idowu TE, Eriomala OO, Akinbote FO. 6-Gingerol improves testicular function in mice model of chronic ulcerative colitis. Hum Exp Toxicol 2017; 37:358-372. [DOI: 10.1177/0960327117703689] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- EO Farombi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - IA Adedara
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - BO Ajayi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - TE Idowu
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - OO Eriomala
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - FO Akinbote
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
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Farombi EO, Adedara IA, Awoyemi OV, Njoku CR, Micah GO, Esogwa CU, Owumi SE, Olopade JO. Dietary protocatechuic acid ameliorates dextran sulphate sodium-induced ulcerative colitis and hepatotoxicity in rats. Food Funct 2016; 7:913-21. [PMID: 26691887 DOI: 10.1039/c5fo01228g] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The present study investigated the antioxidant and anti-inflammatory effects of dietary protocatechuic acid (PCA), a simple hydrophilic phenolic compound commonly found in many edible vegetables, on dextran sulphate sodium (DSS)-induced ulcerative colitis and its associated hepatotoxicity in rats. PCA was administered orally at 10 mg kg(-1) to dextran sulphate sodium exposed rats for five days. The result revealed that administration of PCA significantly (p < 0.05) prevented the incidence of diarrhea and bleeding, the decrease in the body weight gain, shortening of colon length and the increase in colon mass index in DSS-treated rats. Furthermore, PCA prevented the increase in the plasma levels of pro-inflammatory cytokines, markers of liver toxicity and markedly suppressed the DSS-mediated elevation in colonic nitric oxide concentration and myeloperoxidase activity in the treated rats. Administration of PCA significantly protected against colonic and hepatic oxidative damage by increasing the antioxidant status and concomitantly decreased hydrogen peroxide and lipid peroxidation levels in the DSS-treated rats. Moreover, histological examinations confirmed PCA chemoprotection against colon and liver damage. Immunohistochemical analysis showed that PCA significantly inhibited cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) protein expression in the colon of DSS-treated rats. In conclusion, the effective chemoprotective role of PCA in colitis and the associated hepatotoxicity is related to its intrinsic anti-inflammatory and anti-oxidative properties.
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Affiliation(s)
- Ebenezer O Farombi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Isaac A Adedara
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Omolola V Awoyemi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Chinonye R Njoku
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Gabriel O Micah
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Cynthia U Esogwa
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Solomon E Owumi
- Cancer Research and Molecular Biology Unit, Department of Biochemistry, College of Medicine, Nigeria
| | - James O Olopade
- Department of Veterinary Anatomy, University of Ibadan, Nigeria
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Zong SY, Pu YQ, Xu BL, Zhang T, Wang B. Study on the physicochemical properties and anti-inflammatory effects of paeonol in rats with TNBS-induced ulcerative colitis. Int Immunopharmacol 2016; 42:32-38. [PMID: 27863299 DOI: 10.1016/j.intimp.2016.11.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 10/18/2016] [Accepted: 11/11/2016] [Indexed: 12/13/2022]
Abstract
Paeonol, an active component from Paeonia suffruticosa Andr., has a variety of biological activities, such as vascular endothelial cell protection, anti-oxidation, and anti-inflammation. The aim of this study was to investigate the basic physicochemical properties of paeonol, including solubility, oil-water partition coefficient, and permeability. Then evaluated the anti-inflammatory effects of paeonol were evaluated on 2,4,6-trinitrobenzenesulfonic acid-induced ulcerative colitis in rats. The rats were divided randomly into 6 groups, namely, normal, model, paeonol-treated (100, 200, and 400mg/kg), and positive. Each group had 10 rats. Inhibition effects were evaluated by the disease activity index (DAI), colon weight/length ratio, as well as macroscopical and histological evaluations. Serum interleukin (IL)-17, IL-6 and transforming growth factor beta 1 (TGF-β1) levels were determined by enzyme-linked immunosorbent assay. The solubility and oil-water partition coefficient of paeonol in different phosphate buffer solutions were 284.06-598.23 and 461.97-981.17μg/mL, respectively. The effective passive permeability value Pe was 23.49×10-6cm/s. In terms of anti-inflammatory results, compared with the model group, treatment with 200 and 400mg/kg doses of paeonol had significantly decreased DAI, colon weight/length ratio, and macroscopic and histopathological scores. Furthermore, the serum levels of IL-17 and IL-6 were significantly reduced, whereas the TGF-β1 level was increased in the two paeonol-treated groups (medium- and high-dose group). Therefore, paeonol had poor water solubility, but oral absorption was good. In addition, paeonol had therapeutic effects on ulcerative colitis, and the therapeutic efficacy was dose dependent. The results presented in this study provide evidence for the development of a novel therapeutic agent in the treatment of UC. However, whether this agent could have therapeutic benefit or adverse effects in human IBD remains to be fully explored.
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Affiliation(s)
- Shi-Yu Zong
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai 201203, China; School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
| | - Yi-Qiong Pu
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
| | - Ben-Liang Xu
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
| | - Tong Zhang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai 201203, China; School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
| | - Bing Wang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai 201203, China; School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
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Colonic and Hepatic Modulation by Lipoic Acid and/or N-Acetylcysteine Supplementation in Mild Ulcerative Colitis Induced by Dextran Sodium Sulfate in Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:4047362. [PMID: 27957238 PMCID: PMC5124475 DOI: 10.1155/2016/4047362] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 10/03/2016] [Accepted: 10/10/2016] [Indexed: 02/07/2023]
Abstract
Lipoic acid (LA) and N-acetylcysteine (NAC) are antioxidant and anti-inflammatory agents that have not yet been tested on mild ulcerative colitis (UC). This study aims to evaluate the action of LA and/or NAC, on oxidative stress and inflammation markers in colonic and hepatic rat tissues with mild UC, induced by dextran sodium sulfate (DSS) (2% w/v). LA and/or NAC (100 mg·kg·day-1, each) were given, once a day, in the diet, in a pretreatment phase (7 days) and during UC induction (5 days). Colitis induction was confirmed by histological and biochemical analyses (high performance liquid chromatography, spectrophotometry, and Multiplex®). A redox imbalance occurred before an immunological disruption in the colon. NAC led to a decrease in hydrogen peroxide (H2O2), malondialdehyde (MDA) levels, and myeloperoxidase activity. In the liver, DSS did not cause damage but treatments with both antioxidants were potentially harmful, with LA increasing MDA and LA + NAC increasing H2O2, tumor necrosis factor alpha, interferon gamma, and transaminases. In summary, NAC exhibited the highest colonic antioxidant and anti-inflammatory activity, while LA + NAC caused hepatic damage.
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Oxidative Stress and Inflammation in Hepatic Diseases: Therapeutic Possibilities of N-Acetylcysteine. Int J Mol Sci 2015; 16:30269-308. [PMID: 26694382 PMCID: PMC4691167 DOI: 10.3390/ijms161226225] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 12/02/2015] [Accepted: 12/04/2015] [Indexed: 12/12/2022] Open
Abstract
Liver disease is highly prevalent in the world. Oxidative stress (OS) and inflammation are the most important pathogenetic events in liver diseases, regardless the different etiology and natural course. N-acetyl-l-cysteine (the active form) (NAC) is being studied in diseases characterized by increased OS or decreased glutathione (GSH) level. NAC acts mainly on the supply of cysteine for GSH synthesis. The objective of this review is to examine experimental and clinical studies that evaluate the antioxidant and anti-inflammatory roles of NAC in attenuating markers of inflammation and OS in hepatic damage. The results related to the supplementation of NAC in any form of administration and type of study are satisfactory in 85.5% (n = 59) of the cases evaluated (n = 69, 100%). Within this percentage, the dosage of NAC utilized in studies in vivo varied from 0.204 up to 2 g/kg/day. A standard experimental design of protection and treatment as well as the choice of the route of administration, with a broader evaluation of OS and inflammation markers in the serum or other biological matrixes, in animal models, are necessary. Clinical studies are urgently required, to have a clear view, so that, the professionals can be sure about the effectiveness and safety of NAC prescription.
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DeFilippis EM, Kumar S. Clinical Presentation and Outcomes of Autoimmune Hepatitis in Inflammatory Bowel Disease. Dig Dis Sci 2015; 60:2873-80. [PMID: 25999245 DOI: 10.1007/s10620-015-3699-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 05/02/2015] [Indexed: 12/19/2022]
Abstract
Nearly one-third of patients with inflammatory bowel disease (IBD) have abnormal liver tests, which can be indicative of underlying hepatic disease. Primary sclerosing cholangitis has a clear association with ulcerative colitis, but other autoimmune disorders such as autoimmune hepatitis (AIH) have also been associated with IBD. AIH may also occur in the setting of an overlap syndrome or in the setting of medications, particularly tumor necrosis factor alpha inhibitors. Importantly, some studies have shown that IBD patients with AIH fail treatment more frequently than IBD patients without AIH. This review will focus on the clinical characteristics, diagnosis, and management of autoimmune hepatitis in inflammatory bowel disease patients.
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Affiliation(s)
- Ersilia M DeFilippis
- Department of Gastroenterology and Hepatology, Weill Cornell Medical College/New York Presbyterian Hospital, 1305 York Avenue, 4th Floor, New York, NY, 10021, USA.
| | - Sonal Kumar
- Department of Gastroenterology and Hepatology, Weill Cornell Medical College/New York Presbyterian Hospital, 1305 York Avenue, 4th Floor, New York, NY, 10021, USA.
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30
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Ajayi BO, Adedara IA, Farombi EO. Pharmacological Activity of 6-Gingerol in Dextran Sulphate Sodium-induced Ulcerative Colitis in BALB/c Mice. Phytother Res 2015; 29:566-72. [DOI: 10.1002/ptr.5286] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Revised: 12/01/2014] [Accepted: 12/04/2014] [Indexed: 02/02/2023]
Affiliation(s)
- Babajide O. Ajayi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine; University of Ibadan; Ibadan Nigeria
| | - Isaac A. Adedara
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine; University of Ibadan; Ibadan Nigeria
| | - Ebenezer O. Farombi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine; University of Ibadan; Ibadan Nigeria
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Parmar A, Trivedi P, Jena G. Dextran sulfate sodium-induced ulcerative colitis leads to testicular toxicity in mice: Role of inflammation, oxidative stress and DNA damage. Reprod Toxicol 2014; 49:171-84. [DOI: 10.1016/j.reprotox.2014.08.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 08/02/2014] [Accepted: 08/07/2014] [Indexed: 12/13/2022]
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Mechanistic insight into beta-carotene-mediated protection against ulcerative colitis-associated local and systemic damage in mice. Eur J Nutr 2014; 54:639-52. [PMID: 25074825 DOI: 10.1007/s00394-014-0745-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 07/17/2014] [Indexed: 12/18/2022]
Abstract
PURPOSE Ulcerative colitis (UC), a chronic gastrointestinal disorder, is a debilitating disease affecting many people across the globe. Research suggests that the levels of several antioxidants, including β-carotene (β-CAR), decrease in the serum of patients with UC. The present study was aimed at elucidating the molecular mechanisms involved in β-CAR-mediated protection against UC in mice. METHODS UC was induced in mice using 3%w/v dextran sulfate sodium in drinking water for two cycles; one cycle comprised of 7 days of dextran sulfate sodium-treated water followed by 14 days of normal drinking water. β-CAR was administered at the doses of 5, 10 and 20 mg/kg bw/day, po throughout the experiment. The effect of β-CAR in mice with UC was evaluated using biochemical parameters, histological evaluation, comet and micronucleus assays, immunohistochemistry and Western blot analysis. RESULTS The results indicated that β-CAR treatment ameliorated the severity of UC by modulating various molecular targets such as nuclear factor-kappa B, cyclooxygenase-2, interleukin 17, signal transducer and activator of transcription 3, nuclear erythroid 2-related factor 2, matrix metalloproteinase-9 and connective tissue growth factor. Further, β-CAR treatment maintained the gut integrity by increasing the expression of a tight junction protein, occludin, which was decreased in the colon of mice with UC. Also β-CAR treatment significantly reduced UC-associated elevated plasma lipopolysaccharide level, systemic inflammation and genotoxicity. CONCLUSION β-CAR ameliorated UC-associated local and systemic damage in mice by acting on multiple targets.
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Abstract
: Ulcerative colitis (UC), an inflammatory bowel disease, affects many people across the globe, and its prevalence is increasing steadily. Inflammation and oxidative stress play a vital role in the perpetuation of inflammatory process and the subsequent DNA damage associated with the development of UC. UC induces not only local but also systemic damage, which involves the perturbation of multiple molecular pathways. Furthermore, UC leads to an increased risk of colorectal cancer, the third most common malignancy in humans. Most of the drugs used for the treatment of UC are unsatisfactory because they are generally mono-targeted, relatively ineffective and unaffordable for many people. Thus, agents that can target multiple molecular pathways and are less expensive have enormous potential to treat UC. Melatonin has beneficial effects against UC in experimental and clinical studies because of its ability to modulate several molecular pathways of inflammation, oxidative stress, fibrosis, and cellular injury. However, many novel targets are yet to be explored on which melatonin may act to exert its favorable effects in UC. It is time to explore improved intervention strategies with melatonin in UC on the basis of studies investigating different molecular targets using proteomic and genomic approaches. This review identifies various molecular targets for melatonin with the intent of providing novel strategies for combating UC and the associated extraintestinal manifestations of this debilitating disease.
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Affiliation(s)
- Gopabandhu Jena
- Facility for Risk Assessment and Intervention Studies, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Punjab, India
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Kusunoki Y, Ikarashi N, Hayakawa Y, Ishii M, Kon R, Ochiai W, Machida Y, Sugiyama K. Hepatic early inflammation induces downregulation of hepatic cytochrome P450 expression and metabolic activity in the dextran sulfate sodium-induced murine colitis. Eur J Pharm Sci 2014; 54:17-27. [PMID: 24413062 DOI: 10.1016/j.ejps.2013.12.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 11/21/2013] [Accepted: 12/28/2013] [Indexed: 12/21/2022]
Abstract
Ulcerative colitis (UC) patients may have increased concentrations of drugs in their blood. We hypothesized that this response is mainly due to a decrease in the expression and activity of the drug-metabolizing enzyme, cytochrome P450 (CYP), in the liver. In this study, we have tried to demonstrate the hypothesis. UC was induced in mice by treatment with dextran sulfate sodium (DSS) solution. The mRNA and protein expression levels of CYP, inflammatory cytokine levels, and the metabolic activity of CYP3A in the liver were measured. The nuclear translocations of nuclear factor kappa B (NF-κB), pregnane X receptor (PXR), and constitutive androstane receptor (CAR) were analyzed. The levels of hepatic inflammatory cytokines increased in the DSS-treated group. The hepatic mRNA and protein expression of CYP (CYP1A, CYP2C, CYP2D, CYP2E, and CYP3A) and the CYP3A metabolic activity significantly decreased compared to the control group. Hepatic NF-κB nuclear translocation significantly increased in the DSS-treated group. In contrast, the nuclear translocations of PXR and CAR were decreased. Lipopolysaccharides from inflammatory sites in the colon induce hepatic inflammation in DSS-induced murine colitis. This inflammation then causes an increase in the nuclear translocation of hepatic NF-κB and a decrease in the nuclear translocation of PXR and CAR, resulting in the decreased expression and activities of CYP. The results of this study indicated that at the onset of UC, the decreased activity of hepatic CYP causes an increase in the concentrations of drugs in the blood, leading to an increase in the incidence of adverse reactions.
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Affiliation(s)
- Yoshiki Kusunoki
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Nobutomo Ikarashi
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Yoshitaka Hayakawa
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Makoto Ishii
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Risako Kon
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Wataru Ochiai
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Yoshiaki Machida
- Division of Applied Pharmaceutical Education and Research, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Kiyoshi Sugiyama
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
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Trivedi PP, Jena GB. Melatonin reduces ulcerative colitis-associated local and systemic damage in mice: investigation on possible mechanisms. Dig Dis Sci 2013; 58:3460-74. [PMID: 23975342 DOI: 10.1007/s10620-013-2831-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Accepted: 07/27/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Ulcerative colitis (UC) is a chronic gastrointestinal disorder. Substantial research reveals that melatonin has beneficial effects in ulcerative colitis both experimentally and clinically. We have previously reported that ulcerative colitis was associated with local and systemic damage in mice. The purpose of this study was to reveal the novel targets of melatonin in its protective mechanism against ulcerative colitis in mice. We also wished to determine whether or not melatonin protected against ulcerative colitis-induced systemic damage in mice. METHODS Ulcerative colitis was induced in mice by use of 3% (w/v) dextran sulfate sodium for two cycles. One cycle comprised 7 days of DSS-treated water followed by 14 days of normal drinking water. Melatonin was administered at doses of 2, 4, or 8 mg/kg bw/day, po throughout. The effect of melatonin in mice with UC was evaluated by use of biochemical data, histological evaluation, comet and micronucleus assays, immunohistochemistry, and western blot analysis. RESULTS The results indicated that melatonin treatment ameliorated the severity of ulcerative colitis by modulating a variety of molecular targets, for example nuclear factor kappa B, cyclooxygenase-2, interleukin 17, signal transducer and activator of transcription 3, nuclear erythroid 2-related factor 2, matrix metalloproteinase-9, and connective tissue growth factor. Further, ulcerative colitis increased gut permeability, plasma lipopolysaccharide level, systemic inflammation, and genotoxicity. Melatonin treatment led to mucosal healing and reduced ulcerative colitis-induced elevated gut permeability and reduced the plasma LPS level, systemic inflammation, and genotoxicity. CONCLUSION Melatonin ameliorated ulcerative colitis-associated local and systemic damage in mice.
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Affiliation(s)
- P P Trivedi
- Department of Pharmacology and Toxicology, Facility for Risk Assessment and Intervention Studies, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, Punjab, 160062, India,
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Barrett CW, Singh K, Motley AK, Lintel MK, Matafonova E, Bradley AM, Ning W, Poindexter SV, Parang B, Reddy VK, Chaturvedi R, Fingleton BM, Washington MK, Wilson KT, Davies SS, Hill KE, Burk RF, Williams CS. Dietary selenium deficiency exacerbates DSS-induced epithelial injury and AOM/DSS-induced tumorigenesis. PLoS One 2013; 8:e67845. [PMID: 23861820 PMCID: PMC3701622 DOI: 10.1371/journal.pone.0067845] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 05/21/2013] [Indexed: 12/13/2022] Open
Abstract
Selenium (Se) is an essential micronutrient that exerts its functions via selenoproteins. Little is known about the role of Se in inflammatory bowel disease (IBD). Epidemiological studies have inversely correlated nutritional Se status with IBD severity and colon cancer risk. Moreover, molecular studies have revealed that Se deficiency activates WNT signaling, a pathway essential to intestinal stem cell programs and pivotal to injury recovery processes in IBD that is also activated in inflammatory neoplastic transformation. In order to better understand the role of Se in epithelial injury and tumorigenesis resulting from inflammatory stimuli, we examined colonic phenotypes in Se-deficient or -sufficient mice in response to dextran sodium sulfate (DSS)-induced colitis, and azoxymethane (AOM) followed by cyclical administration of DSS, respectively. In response to DSS alone, Se-deficient mice demonstrated increased morbidity, weight loss, stool scores, and colonic injury with a concomitant increase in DNA damage and increases in inflammation-related cytokines. As there was an increase in DNA damage as well as expression of several EGF and TGF-β pathway genes in response to inflammatory injury, we sought to determine if tumorigenesis was altered in the setting of inflammatory carcinogenesis. Se-deficient mice subjected to AOM/DSS treatment to model colitis-associated cancer (CAC) had increased tumor number, though not size, as well as increased incidence of high grade dysplasia. This increase in tumor initiation was likely due to a general increase in colonic DNA damage, as increased 8-OHdG staining was seen in Se-deficient tumors and adjacent, non-tumor mucosa. Taken together, our results indicate that Se deficiency worsens experimental colitis and promotes tumor development and progression in inflammatory carcinogenesis.
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Affiliation(s)
- Caitlyn W. Barrett
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Kshipra Singh
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Veterans Affairs Tennessee Valley Health Care System, Nashville, Tennessee, United States of America
| | - Amy K. Motley
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Mary K. Lintel
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Elena Matafonova
- Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Amber M. Bradley
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Wei Ning
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Shenika V. Poindexter
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Bobak Parang
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Vishruth K. Reddy
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Rupesh Chaturvedi
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Veterans Affairs Tennessee Valley Health Care System, Nashville, Tennessee, United States of America
| | - Barbara M. Fingleton
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Mary K. Washington
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Keith T. Wilson
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Vanderbilt Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Veterans Affairs Tennessee Valley Health Care System, Nashville, Tennessee, United States of America
| | - Sean S. Davies
- Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Kristina E. Hill
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Raymond F. Burk
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Christopher S. Williams
- Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Vanderbilt Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Veterans Affairs Tennessee Valley Health Care System, Nashville, Tennessee, United States of America
- * E-mail:
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