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Bourgonje AR, Kloska D, Grochot-Przęczek A, Feelisch M, Cuadrado A, van Goor H. Personalized redox medicine in inflammatory bowel diseases: an emerging role for HIF-1α and NRF2 as therapeutic targets. Redox Biol 2023; 60:102603. [PMID: 36634466 PMCID: PMC9841059 DOI: 10.1016/j.redox.2023.102603] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/05/2023] [Accepted: 01/05/2023] [Indexed: 01/07/2023] Open
Abstract
Inflammatory bowel diseases (IBD), encompassing Crohn's disease (CD) and ulcerative colitis (UC), are intimately associated with inflammation and overproduction of reactive oxygen species (ROS). Temporal and inter-individual variabilities in disease activity and response to therapy pose significant challenges to diagnosis and patient care. Discovery and validation of truly integrative biomarkers would benefit from embracing redox metabolomics approaches with prioritization of central regulatory hubs. We here make a case for applying a personalized redox medicine approach that aims to selectively inhibit pathological overproduction and/or altered expression of specific enzymatic sources of ROS without compromising physiological function. To this end, improved 'clinical-omics integration' may help to better understand which particular redox signaling pathways are disrupted in what patient. Pharmacological interventions capable of activating endogenous antioxidant defense systems may represent viable therapeutic options to restore local/systemic redox status, with HIF-1α and NRF2 holding particular promise in this context. Achieving the implementation of clinically meaningful mechanism-based biomarkers requires development of easy-to-use, robust and cost-effective tools for secure diagnosis and monitoring of treatment efficacy. Ultimately, matching redox-directed pharmacological interventions to individual patient phenotypes using predictive biomarkers may offer new opportunities to break the therapeutic ceiling in IBD.
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Affiliation(s)
- Arno R. Bourgonje
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands,Corresponding author.
| | - Damian Kloska
- Malopolska Centre of Biotechnology, Jagiellonian University, Kraków, Poland
| | - Anna Grochot-Przęczek
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Martin Feelisch
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Antonio Cuadrado
- Instituto de Investigaciones Biomédicas “Alberto Sols” UAM-CSIC. Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain
| | - Harry van Goor
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
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2
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Esmer Yİ, Çınar E, Başaran E. Design, Docking, Synthesis and Biological Evaluation of Novel Nicotinohydrazone Derivatives as Potential Butyrylcholinesterase Enzyme Inhibitor. ChemistrySelect 2022. [DOI: 10.1002/slct.202202771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yusuf İslam Esmer
- Department of Chemistry Graduate Education Institute Batman University 72060 Batman Turkey
| | - Ercan Çınar
- Department of Nursing, Faculty of Health Sciences Batman University 72060 Batman Turkey
| | - Eyüp Başaran
- Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences Batman University 72060 Batman Turkey
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3
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Crisóstomo L, Oliveira PF, Alves MG. Antioxidants, Oxidative Stress, and Non-Communicable Diseases. Antioxidants (Basel) 2022; 11:antiox11061080. [PMID: 35739977 PMCID: PMC9220197 DOI: 10.3390/antiox11061080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 11/16/2022] Open
Abstract
Non-communicable diseases have become the leading cause of death, morbidity, and loss of healthy years worldwide, according to the World Health Organization [...]
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Affiliation(s)
- Luís Crisóstomo
- Departamento de Anatomia, e Unidade Multidisciplinar de Investigação em Biomedicina (UMIB), Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, 4050-313 Porto, Portugal;
- Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, 4050-600 Porto, Portugal
- Integrative Physiology and Pharmacology Unit, Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, 20520 Turku, Finland
| | - Pedro F. Oliveira
- QOPNA & LAQV, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;
| | - Marco G. Alves
- Departamento de Anatomia, e Unidade Multidisciplinar de Investigação em Biomedicina (UMIB), Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, 4050-313 Porto, Portugal;
- Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, 4050-600 Porto, Portugal
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003 Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003 Girona, Spain
- Correspondence: ; Tel.: +351-967-245-248
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4
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Di Ciaula A, Bonfrate L, Krawczyk M, Frühbeck G, Portincasa P. Synergistic and Detrimental Effects of Alcohol Intake on Progression of Liver Steatosis. Int J Mol Sci 2022; 23:ijms23052636. [PMID: 35269779 PMCID: PMC8910376 DOI: 10.3390/ijms23052636] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 02/07/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) and alcoholic liver disease (ALD) are the most common liver disorders worldwide and the major causes of non-viral liver cirrhosis in the general population. In NAFLD, metabolic abnormalities, obesity, and metabolic syndrome are the driving factors for liver damage with no or minimal alcohol consumption. ALD refers to liver damage caused by excess alcohol intake in individuals drinking more than 5 to 10 daily units for years. Although NAFLD and ALD are nosologically considered two distinct entities, they show a continuum and exert synergistic effects on the progression toward liver cirrhosis. The current view is that low alcohol use might also increase the risk of advanced clinical liver disease in NAFLD, whereas metabolic factors increase the risk of cirrhosis among alcohol risk drinkers. Therefore, special interest is now addressed to individuals with metabolic abnormalities who consume small amounts of alcohol or who binge drink, for the role of light-to-moderate alcohol use in fibrosis progression and clinical severity of the liver disease. Evidence shows that in the presence of NAFLD, there is no liver-safe limit of alcohol intake. We discuss the epidemiological and clinical features of NAFLD/ALD, aspects of alcohol metabolism, and mechanisms of damage concerning steatosis, fibrosis, cumulative effects, and deleterious consequences which include hepatocellular carcinoma.
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Affiliation(s)
- Agostino Di Ciaula
- Clinica Medica “Augusto Murri”, Department of Biomedical Sciences and Human Oncology, University of Bari Medical School—Piazza Giulio Cesare 11, 70124 Bari, Italy; (A.D.C.); (L.B.)
| | - Leonilde Bonfrate
- Clinica Medica “Augusto Murri”, Department of Biomedical Sciences and Human Oncology, University of Bari Medical School—Piazza Giulio Cesare 11, 70124 Bari, Italy; (A.D.C.); (L.B.)
| | - Marcin Krawczyk
- Department of Medicine II Saarland University Medical Center, Saarland University, 66424 Homburg, Germany;
- Laboratory of Metabolic Liver Diseases, Department of General, Transplant and Liver Surgery, Centre for Preclinical Research, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Gema Frühbeck
- Department of Endocrinology & Nutrition, Clínica Universidad de Navarra, 31008 Pamplona, Spain;
- Metabolic Research Laboratory, Clínica Universidad de Navarra, 31008 Pamplona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), ISCIII, 31009 Pamplona, Spain
- Obesity and Adipobiology Group, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31009 Pamplona, Spain
| | - Piero Portincasa
- Clinica Medica “Augusto Murri”, Department of Biomedical Sciences and Human Oncology, University of Bari Medical School—Piazza Giulio Cesare 11, 70124 Bari, Italy; (A.D.C.); (L.B.)
- Correspondence:
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5
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Pădureanu V, Florescu D, Pădureanu R, Ghenea A, Gheonea D, Oancea C. Role of antioxidants and oxidative stress in the evolution of acute pancreatitis (Review). Exp Ther Med 2022; 23:197. [PMID: 35126700 PMCID: PMC8794551 DOI: 10.3892/etm.2022.11120] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 10/29/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
- Vlad Pădureanu
- Department of Internal Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Dan Florescu
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Rodica Pădureanu
- Department of Internal Medicine, Emergency Clinical County Hospital of Craiova, 200642 Craiova, Romania
| | - Alice Ghenea
- Department of Bacteriology‑Virology‑Parasitology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Dan Gheonea
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Carmen Oancea
- Department of Analytical Chemistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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Morvaridzadeh M, Estêvão MD, Qorbani M, Heydari H, Hosseini AS, Fazelian S, Belančić A, Persad E, Rezamand G, Heshmati J. The effect of chromium intake on oxidative stress parameters: A systematic review and meta-analysis. J Trace Elem Med Biol 2022; 69:126879. [PMID: 34710707 DOI: 10.1016/j.jtemb.2021.126879] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Trivalent chromium is a trace element thought to have a beneficial effect on oxidative stress (OS) parameters and inflammation. This review aimed to investigate the dose-response of chromium and summarize the effects of chromium supplementation on OS parameters in the literature. METHODS MEDLINE, Scopus, Web of Science and Cochrane CENTRAL databases were searched for RCTs published from inception to January 2021 evaluating the effect of chromium supplementation on OS parameters, namely MDA, TBARS, SOD, TAS, CAT, GPx, and GSH. A random-effects model was used to pool data and calculated standard mean difference and 95 % confidence intervals. Quantified heterogeneity among studies was assessed through Cochrane's I2 values. RESULTS Nine studies enrolling 550 participants met the inclusion criteria. The obtained results indicate that chromium supplementation significantly increases TAC (SMD: 0.46; 95 % CI: 0.08, 0.84; I2 = 00.0 % n = 2) and significantly decreases MDA levels (SMD: -0.46; 95 % CI: -0.86, -0.07; I2 = 52.4 % n = 5). Supplementation did not significantly change CAT, GPx, GSH, SOD, TAS, and TBARS. CONCLUSION Chromium supplementation may improve OS parameters, however, due to high heterogeneity observed in the included studies, these findings should be interpreted with caution. Large RCTs on various patient groups evaluating the impact of chromium supplementation are needed to allow an adequate generalization of the benefits of chromium on human health.
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Affiliation(s)
- Mojgan Morvaridzadeh
- Songhor Healthcare Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - M Dulce Estêvão
- Universidade do Algarve, Escola Superior de Saúde, Campus de Gambelas, Faro, Portugal
| | - Mostafa Qorbani
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran; Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hafez Heydari
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Ava Sadat Hosseini
- Department of Education and Health Promotion, School of Health, Iran University of Medical Sciences, Tehran, Iran
| | - Siavash Fazelian
- Clinical Research Development Unit, Ayatollah Kashani Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Andrej Belančić
- Department of Clinical Pharmacology, Clinical Hospital Centre Rijeka, Rijeka, Croatia
| | - Emma Persad
- Department for Evidence-based Medicine and Evaluation, Danube University Krems, Krems, Austria
| | - Gholamreza Rezamand
- Colorectal Research Center, Iran University of Medical Sciences, Rasoul-e- Akram Hospital, Sattarkhan Ave, Niyayesh St., Tehran, Iran.
| | - Javad Heshmati
- Songhor Healthcare Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Lee CW, Vo TTT, Wee Y, Chiang YC, Chi MC, Chen ML, Hsu LF, Fang ML, Lee KH, Guo SE, Cheng HC, Lee IT. The Adverse Impact of Incense Smoke on Human Health: From Mechanisms to Implications. J Inflamm Res 2021; 14:5451-5472. [PMID: 34712057 PMCID: PMC8548258 DOI: 10.2147/jir.s332771] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022] Open
Abstract
Incense burning is a very popular activity in daily life among many parts all over the world. A growing body of both epidemiological and experimental evidences has reported the negative effects of incense use on human well-being, posing a potential threat at public significance. This work is a comprehensive review that covers the latest findings regarding the adverse impact of incense smoke on our health, providing a panoramic visualization ranging from mechanisms to implications. The toxicities of incense smoke come directly from its harmful constituents and deposition capacity in the body. Besides, reactive oxygen species-driven oxidative stress and associated inflammation seem to be plausible underlying mechanisms, eliciting various unfavorable responses. Although our current knowledge remains many gaps, this issue still has some important implications.
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Affiliation(s)
- Chiang-Wen Lee
- Department of Nursing, Division of Basic Medical Sciences, Chronic Diseases and Health Promotion Research Center and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Puzi City, Chiayi County, Taiwan
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Puzi City, Chiayi County, Taiwan
- Department of Safety Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City, Taiwan
- College of Medicine, Chang Gung University, Taoyuan City, Taiwan
| | - Thi Thuy Tien Vo
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yinshen Wee
- Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Yao-Chang Chiang
- Department of Nursing, Division of Basic Medical Sciences, Chronic Diseases and Health Promotion Research Center and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Puzi City, Chiayi County, Taiwan
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Puzi City, Chiayi County, Taiwan
| | - Miao-Ching Chi
- Chronic Disease and Health Promotion Research Center, Chang Gung University of Science and Technology, Puzi City, Chiayi County, Taiwan
- Division of Pulmonary and Critical Care Medicine, Chiayi Chang Gung Memorial Hospital, Puzi City, Chiayi County, Taiwan
- Department of Respiratory Care, Chang Gung University of Science and Technology, Puzi City, Chiayi County, Taiwan
| | - Min-Li Chen
- Department of Nursing, Chang Gung Memorial Hospital, Puzi City, Chiayi County, Taiwan
- Graduate Institute of Nursing, Chang Gung University of Science and Technology, Puzi City, Chiayi County, Taiwan
| | - Lee-Fen Hsu
- Department of Respiratory Care, Chang Gung University of Science and Technology, Puzi City, Chiayi County, Taiwan
- Division of Neurosurgery, Department of Surgery, Chang Gung Memorial Hospital, Puzi City, Chiayi County, Taiwan
| | - Mei-Ling Fang
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, Taiwan
- Super Micro Research and Technology Center, Cheng Shiu University, Kaohsiung, Taiwan
| | - Kuan-Han Lee
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Su-Er Guo
- Graduate Institute of Nursing, Chang Gung University of Science and Technology, Puzi City, Chiayi County, Taiwan
| | - Hsin-Chung Cheng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Dentistry, Taipei Medical University Hospital, Taipei, Taiwan
| | - I-Ta Lee
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
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Wang S, Bai M, Xu K, Shao Y, Yang Z, Xiong X, Huang R, Li Y, Liu H. Effects of Coated Cysteamine on Oxidative Stress and Inflammation in Weaned Pigs. Animals (Basel) 2021; 11:ani11082217. [PMID: 34438677 PMCID: PMC8388385 DOI: 10.3390/ani11082217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/15/2021] [Accepted: 07/23/2021] [Indexed: 01/11/2023] Open
Abstract
This study aimed to explore the effects of dietary coated cysteamine on oxidative stress and inflammation in diquat-induced weaning pigs. Twenty-four pigs were randomly assigned to three dietary groups with eight replicates: the control (fed base diet), diquat (fed base diet), and coated cysteamine + diquat groups (fed 80 mg/kg cysteamine). The experiment was conducted for 21 d, and consisted of a pre-starter period (14 d) and a starter period (7 d). Coated cysteamine treatment significantly increased (p < 0.05) the final weight and average daily gain (ADG) in pigs. The contents of alkaline phosphatase (ALP), immunoglobulin G (IgG), serine (Ser), and isoleucine (Ile) were elevated (p < 0.05) while the contents of albumin (ALB) and aspartic acid (Asp) were reduced (p < 0.05) in the serum after coated cysteamine supplementation. Coated cysteamine supplementation resulted in greater (p < 0.05) serum superoxide dismutase (SOD) activity, the expression of interleukin-10 (IL-10) mRNA in the colon, and the CuSOD mRNA expression in the jejunum (p < 0.05) and colon (p = 0.073). Coated cysteamine supplementation showed an increasing trend in villus height (p = 0.060), villus height/crypt depth (V/C) (p = 0.056), the expression levels of zonula occludens-1 (ZO-1) mRNA (p = 0.061), and Occludin mRNA (p = 0.074) in the jejunum. In summary, dietary supplementation with coated cysteamine improves the intestinal barrier function of the jejunum by increasing the immunoglobulin content and the relative expression of intestinal immune factor mRNA in pigs while alleviating oxidative stress and inflammatory reactions caused by diquat.
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Affiliation(s)
- Shanshan Wang
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; (S.W.); (M.B.); (K.X.); (Y.S.); (X.X.); (R.H.)
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China
| | - Miaomiao Bai
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; (S.W.); (M.B.); (K.X.); (Y.S.); (X.X.); (R.H.)
| | - Kang Xu
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; (S.W.); (M.B.); (K.X.); (Y.S.); (X.X.); (R.H.)
| | - Yirui Shao
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; (S.W.); (M.B.); (K.X.); (Y.S.); (X.X.); (R.H.)
| | - Zhe Yang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
| | - Xia Xiong
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; (S.W.); (M.B.); (K.X.); (Y.S.); (X.X.); (R.H.)
| | - Ruilin Huang
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; (S.W.); (M.B.); (K.X.); (Y.S.); (X.X.); (R.H.)
| | - Yao Li
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China
- Correspondence: (Y.L.); (H.L.)
| | - Hongnan Liu
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; (S.W.); (M.B.); (K.X.); (Y.S.); (X.X.); (R.H.)
- Correspondence: (Y.L.); (H.L.)
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Almeida BFMD, Amatti LZ, de Souza GG, Garcia LV, Montechiesi DF, Ignácio FS, de Oliveira PL, Costa LR, Floriano BP, Bosculo MRM, Joaquim JGF, Rubio CP. Effect of uterine ozone therapy and anticoagulant sampling on oxidative stress parameters in mares. Res Vet Sci 2021; 136:503-511. [PMID: 33878612 DOI: 10.1016/j.rvsc.2021.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/05/2021] [Accepted: 04/12/2021] [Indexed: 01/12/2023]
Abstract
With the purpose of assessing the effects of uterine ozone therapy and anticoagulant sampling on oxidative stress (OS) parameters in mares, ten mares underwent three consecutive days of uterine ozone therapy by flushing the uterus with ozonated lactated Ringer's solution followed by insufflation with ozone‑oxygen gas. Serum samples were obtained at baseline and days 3, 6, 10 and 17 to determine the effect of ozone therapy on OS markers. Plasma obtained with anticoagulants citrate, ethylenediaminetetraacetic acid (EDTA) and heparin were at baseline and 6 days following therapy to determine the effect of anticoagulant on OS parameters. Antioxidants albumin and uric acid, total antioxidant capacity (TAC) using four different methods, total oxidant capacity (TOC) and lipid peroxidation were determined through photocolorimetry. Statistical analyses comprised repeated measures ANOVA followed by Dunnett's test or Friedman followed by Dunn's post-hoc test. Differences were considered significant when p < 0.05. Uterine ozone therapy significantly decreased uric acid, TAC in all four different methods, concomitantly with an increase on TOC at days 3 and 6 following therapy. No changes were observed on albumin and lipid peroxidation levels. Anticoagulants prevented the detection of oxidative stress induced by uterine ozone therapy depending on the method of analysis. In conclusion, uterine ozone therapy causes systemic oxidative stress in mares and the choice of anticoagulant sampling interferes with laboratory tests.
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Affiliation(s)
- Breno Fernando Martins de Almeida
- Department of Veterinary Medicine, University Center of the Integrated Faculties of Ourinhos (Unifio), Ourinhos, São Paulo State, Brazil.
| | - Lidiana Zanetti Amatti
- Department of Veterinary Medicine, University Center of the Integrated Faculties of Ourinhos (Unifio), Ourinhos, São Paulo State, Brazil
| | - Giovanna Gati de Souza
- Department of Veterinary Medicine, University Center of the Integrated Faculties of Ourinhos (Unifio), Ourinhos, São Paulo State, Brazil
| | - Luana Venâncio Garcia
- Department of Veterinary Medicine, University Center of the Integrated Faculties of Ourinhos (Unifio), Ourinhos, São Paulo State, Brazil
| | - Daniela Fernandez Montechiesi
- Department of Veterinary Medicine, University Center of the Integrated Faculties of Ourinhos (Unifio), Ourinhos, São Paulo State, Brazil
| | | | - Paula Lima de Oliveira
- Veterinary Teaching Hospital Roque Quagliato, University Center of the Integrated Faculties of Ourinhos (Unifio), Ourinhos, São Paulo State, Brazil
| | - Letícia Ramos Costa
- Veterinary Teaching Hospital Roque Quagliato, University Center of the Integrated Faculties of Ourinhos (Unifio), Ourinhos, São Paulo State, Brazil
| | - Beatriz Perez Floriano
- Department of Veterinary Medicine, University Center of the Integrated Faculties of Ourinhos (Unifio), Ourinhos, São Paulo State, Brazil
| | - Maria Rachel Melo Bosculo
- Veterinary Teaching Hospital Roque Quagliato, University Center of the Integrated Faculties of Ourinhos (Unifio), Ourinhos, São Paulo State, Brazil
| | | | - Camila Peres Rubio
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, Espinardo, Murcia, Spain
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10
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An antioxidant suppressed lung cellular senescence and enhanced pulmonary function in aged mice. Biochem Biophys Res Commun 2021; 541:43-49. [PMID: 33465741 DOI: 10.1016/j.bbrc.2020.12.112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 12/23/2020] [Indexed: 01/12/2023]
Abstract
Oxidative stress is one of the major causes of cellular senescence in mammalian cells. The excess amount of reactive oxygen species generated by oxygen metabolism is pathogenic and facilitates tissue aging. Lung tissue is more susceptible to oxidative stress than other organs because it is directly exposed to environmental stresses. The aging of lung tissues increases the risk of chronic diseases. Senescent cells accumulate in tissues during aging and contribute to aging-associated morbidity; however, the roles of cellular senescence in lung aging and diseases have not yet been elucidated in detail. To clarify the physiological role of oxidative stress-induced cellular senescence in aging-associated declines in pulmonary function, we herein investigated the effects of the antioxidant N-acetyl-L-cysteine (NAC) on lung cellular senescence and aging in mice. The administration of NAC to 1-year-old mice reduced the expression of senescence-associated genes in lung tissue. Pulmonary function and lung morphology were partly restored in mice administered NAC. Collectively, these results suggest that oxidative stress is a major inducer of cellular senescence in vivo and that the control of oxidative stress may prevent lung aging and diseases.
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Oxidative Stress in the Pathogenesis of Crohn's Disease and the Interconnection with Immunological Response, Microbiota, External Environmental Factors, and Epigenetics. Antioxidants (Basel) 2021; 10:antiox10010064. [PMID: 33430227 PMCID: PMC7825667 DOI: 10.3390/antiox10010064] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/03/2021] [Accepted: 01/04/2021] [Indexed: 12/14/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a complex multifactorial disorder in which external and environmental factors have a large influence on its onset and development, especially in genetically susceptible individuals. Crohn’s disease (CD), one of the two types of IBD, is characterized by transmural inflammation, which is most frequently located in the region of the terminal ileum. Oxidative stress, caused by an overabundance of reactive oxygen species, is present locally and systemically in patients with CD and appears to be associated with the well-described imbalanced immune response and dysbiosis in the disease. Oxidative stress could also underlie some of the environmental risk factors proposed for CD. Although the exact etiopathology of CD remains unknown, the key role of oxidative stress in the pathogenesis of CD is extensively recognized. Epigenetics can provide a link between environmental factors and genetics, and numerous epigenetic changes associated with certain environmental risk factors, microbiota, and inflammation are reported in CD. Further attention needs to be focused on whether these epigenetic changes also have a primary role in the pathogenesis of CD, along with oxidative stress.
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12
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Protective effect of diosgenin on LPS/D-Gal-induced acute liver failure in C57BL/6 mice. Microb Pathog 2020; 146:104243. [DOI: 10.1016/j.micpath.2020.104243] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 02/20/2020] [Accepted: 04/30/2020] [Indexed: 12/28/2022]
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13
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Li M, Yuan D, Liu Y, Jin H, Tan B. Dietary Puerarin Supplementation Alleviates Oxidative Stress in the Small Intestines of Diquat-Challenged Piglets. Animals (Basel) 2020; 10:ani10040631. [PMID: 32272553 PMCID: PMC7222835 DOI: 10.3390/ani10040631] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/02/2020] [Accepted: 04/04/2020] [Indexed: 12/14/2022] Open
Abstract
Simple Summary The oxidant stress which piglets suffer from during the weaning period has caused huge losses to the pig farm industry. It is important for scientists to find an effective way to alleviate the oxidant stress in weaned piglets. This study was designed to test the hypothesis that dietary puerarin supplementation alleviates oxidative stress in the small intestine of diquat-challenged piglets. Interestingly, dietary puerarin supplementation improved intestinal morphology, cell proliferation, barrier function, and increased Nrf2 and its downstream enzymes in diquat-challenged piglets, which shows that puerarin has potent protective effects against diquat-induced oxidative stress. These findings will be very beneficial to the pig industry, especially to the development of antibiotic-free diets, new anti-inflammatory drugs and the application of puerarin in piglets. Abstract This study was conducted to demonstrate that dietary puerarin supplementation alleviates oxidative stress in the small intestine of diquat-challenged piglets. The results showed that puerarin administration markedly alleviated diquat-induced intestinal injury, which was indicated by the improvement of intestinal morphology, cell proliferation and barrier function. One of the potential mechanisms responsible for this was the decrease in oxidative stress, as evidenced by the increase in activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and total antioxidant capacity (T-AOC) in the small intestine. Puerarin increased the protein expression levels of NF-E2-related factor 2 (Nrf2) and its downstream enzymes, including heme oxygenase 1 (HO-1), glutamate–cysteine ligase catalytic and its modifier subunit (GCLc and GCLm) in the jejunal mucosa of diquat-induced piglets. Puerarin administration improved intestinal morphology, cell proliferation, and barrier function, and increased Nrf2 and its downstream enzymes. These findings indicate that the dietary supplementation of puerarin attenuates the oxidative stress involving Nrf2 signaling pathways in diquat-challenged piglets.
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Affiliation(s)
- Meng Li
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; (M.L.); (H.J.)
- University of Chinese Academy of Sciences, Beijing 100008, China
| | - Daixu Yuan
- Department of Medicine, Jishou University, Jishou 416000, China;
| | - Yanhong Liu
- Department of Animal Science, University of California, Davis, CA 95616, USA;
| | - Hui Jin
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; (M.L.); (H.J.)
| | - Bie Tan
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; (M.L.); (H.J.)
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
- Correspondence: ; Tel.: +1-511-611-0998
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14
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Sharma M, Kaur R, Kaushik K, Kaushal N. Redox modulatory protective effects of ω-3 fatty acids rich fish oil against experimental colitis. Toxicol Mech Methods 2019; 29:244-254. [PMID: 30489199 DOI: 10.1080/15376516.2018.1553220] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Ulcerative colitis (UC), a form of inflammatory bowel disease (IBD), is an immune-modulated disorder characterized by chronic and recurring inflammatory episodes. Oxidative stress and COX pathway of prostaglandin (PG) biosynthesis are indispensable to pathogenesis of UC. Any imbalance between PGs can compromise the mucosal homeostasis, leading to mucosal damage and chronic inflammation. However, blocking these PGs using classical Cox inhibitors such as non-steroidal anti-inflammatory drugs (NSAIDs) can instead aggravate signs of IBD. Therefore, realizing the need for safer and well tolerable alterative treatment approaches, currently, we evaluated the efficacy of n-3 fatty acids rich fish oil (FO) in the resolution of UC. Using a dextran sodium sulfate (DSS) model of experimental colitis, we have demonstrated that supplementation of FO containing 180 mg EPA and 120 mg DHA for 1 month relieved the signs (diarrhea, bloody stools, weight loss) of colitis-associated inflammation. To understand the biophysical changes associated with FO mediated inflammatory regulation, impedance measurement and Fourier transform infrared spectroscopy (FTIR) were done. These changes were also correlated with oxidative stress through markers such as GST, glutathione peroxidase (GPx), LPO, catalase, protein carbonyl content, GR, etc. in colonic mucosa. The modulation of COX mediated pathways in UC-associated inflammation was observed by protein expressions of various pro-inflammatory cytokines such as TNF-α and enzymes of PG synthesis such as COX-2, PGES, TXAS, and anti-inflammatory PGDS. Refuting the earlier reports that suggested the contradictory effects of FO, in the current study, we evidently demonstrated that the protective effects of FO are mediated through molecular mechanisms involving the redox-regulation of metabolism of key lipid metabolites.
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Affiliation(s)
- Mohita Sharma
- a Department of Biophysics , Panjab University , Chandigarh , India
| | - Ramanpreet Kaur
- a Department of Biophysics , Panjab University , Chandigarh , India
| | - Kuldeep Kaushik
- b Department of Zoology , Dev Samaj College for Women , Ferozepur City , India
| | - Naveen Kaushal
- a Department of Biophysics , Panjab University , Chandigarh , India
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Kornienko JS, Smirnova IS, Pugovkina NA, Ivanova JS, Shilina MA, Grinchuk TM, Shatrova AN, Aksenov ND, Zenin VV, Nikolsky NN, Lyublinskaya OG. High doses of synthetic antioxidants induce premature senescence in cultivated mesenchymal stem cells. Sci Rep 2019; 9:1296. [PMID: 30718685 PMCID: PMC6361906 DOI: 10.1038/s41598-018-37972-y] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 12/13/2018] [Indexed: 12/19/2022] Open
Abstract
Stress-induced premature senescence program is known to be activated in cells by various genotoxic stressors, and oxidative stress is considered to be the main of those. To this end, many studies discover antioxidants as protective anti-aging agents. In the current study, we examined the effects of different antioxidants (Tempol, resveratrol, NAC, DPI) on the mesenchymal stem cells maintained in normal physiological conditions. We used high, but non-cytotoxic antioxidant doses which are widely used in laboratory practice to protect cells from oxidative damage. We show that these substances induce reversible block of cell proliferation and do not cause any genotoxic effects when applied to the quiescent cells. However, the same doses of the same substances, when applied to the proliferating cells, can induce irreversible cell cycle arrest, DNA strand breaks accumulation and DNA damage response activation. As a consequence, antioxidant-induced DNA damage results in the stress-induced premature senescence program activation. We conclude that high doses of antioxidants, when applied to the proliferating cells that maintain physiological levels of reactive oxygen species, can cause DNA damage and induce premature senescence which suggests to re-estimate believed unconditional anti-aging antioxidant properties.
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Affiliation(s)
- Ju S Kornienko
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia
| | - I S Smirnova
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia
| | - N A Pugovkina
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia
| | - Ju S Ivanova
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia
| | - M A Shilina
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia
| | - T M Grinchuk
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia
| | - A N Shatrova
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia
| | - N D Aksenov
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia
| | - V V Zenin
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia
| | - N N Nikolsky
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia
| | - O G Lyublinskaya
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, St.Petersburg, 194064, Russia.
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Soliman SM, Wadie W, Shouman SA, Ainshoka AA. Sodium selenite ameliorates both intestinal and extra-intestinal changes in acetic acid-induced colitis in rats. Naunyn Schmiedebergs Arch Pharmacol 2018; 391:639-647. [PMID: 29656366 DOI: 10.1007/s00210-018-1491-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/03/2018] [Indexed: 01/12/2023]
Abstract
Selenium and its derivatives including sodium selenite (sod sel) belong to the group of essential trace elements needed for proper health and nutrition. They are fairly safe and possess antioxidant and anti-inflammatory properties. The aim of present investigation was to elucidate the effect of sod sel on experimental colitis model in rats. Colitis was induced by intrarectal instillation of 4% (v/v) acetic acid. Two hours later, sod sel was given to rats on a daily basis for 15 consecutive days. Clinical symptoms, colon mass index, spleen weight inflammatory markers, hematological, biochemical, macroscopic, and histological changes were determined. Sod sel markedly ameliorated colitis as evidenced by a significant decrease in macroscopic and microscopic score, disease activity index, colon mass index, and spleen weight. Treatment with sod sel attenuated oxidative stress in the colon by normalizing the colonic content of nitric oxide, malondialdehyde, and reduced glutathione, as well as the activities of catalase, superoxide dismutase, and junctional adhesion molecule (JAM-a). In addition, it significantly reduced colonic myeloperoxidase content, the intercellular adhesion molecule (ICAM-1), and the proinflammatory cytokines; TNF-α, IL-1β. Moreover, sod sel normalized hematological parameters, serum transaminases, and kidney and liver function enzymes. The current study indicates that sod sel was effective in ameliorating the intestinal and extra-intestinal manifestation in acetic acid-induced colitis through its antioxidant, anti-inflammatory, and immunomodulatory effects.
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Affiliation(s)
- Samar M Soliman
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al Ahram Canadian University, Giza, Egypt.
| | - Walaa Wadie
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Samia A Shouman
- Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Afaf A Ainshoka
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Suriano F, Neyrinck AM, Verspreet J, Olivares M, Leclercq S, Van de Wiele T, Courtin CM, Cani PD, Bindels LB, Delzenne NM. Particle size determines the anti-inflammatory effect of wheat bran in a model of fructose over-consumption: Implication of the gut microbiota. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.12.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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18
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Association between antioxidants and mild acute pancreatitis. Arab J Gastroenterol 2017; 18:201-205. [DOI: 10.1016/j.ajg.2017.11.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 10/09/2017] [Accepted: 11/30/2017] [Indexed: 12/22/2022]
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19
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Yilmazer A. Cancer cell lines involving cancer stem cell populations respond to oxidative stress. ACTA ACUST UNITED AC 2017; 17:24-30. [PMID: 29276697 PMCID: PMC5730381 DOI: 10.1016/j.btre.2017.11.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 11/14/2017] [Accepted: 11/15/2017] [Indexed: 12/18/2022]
Abstract
Incubation of cancer cells with H2O2 results in oxidative stress. Cancer cell lines involving cancer stem cell populations respond to oxidative stress and are directed towards apoptosis. Presence of different CSC populations may involve when cancer cells generate response to oxidative stress.
Cancer cells may be more prone to the accumulation of reactive oxygen species (ROS) than normal cells; therefore increased oxidative stress can specifically kill cancer cells including cancer stem cells (CSCs). In order to generate oxidative stress in various cancer cell lines including A549, G361 and MCF-7, cultured cells were exposed to H2O2. Incubation of cancer cells with H2O2 results in concentration-dependent cell death in A549 and G361-7 cells, whereas MCF-7 cells showed higher sensitivity even at a lower H2O2 concentration. H2O2 treatment decreased the number of cells in G2/M phase and increased the number of apoptotic cells. Both CD24 negative/CD44 positive cells and CD146 positive cells were found to be present in all tested cancer cell lines, indicating that CSC populations may play role in the cellular response to oxidative stress. This study showed that inducing oxidative stress through ROS can offer a promising approach for anti-cancer therapy.
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Affiliation(s)
- Açelya Yilmazer
- Biomedical Engineering Department, Engineering Faculty, Ankara University, Tandogan, Ankara, Turkey.,Stem Cell Institute, Ankara University, Balgat, Ankara, Turkey
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20
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Neyrinck AM, Etxeberria U, Taminiau B, Daube G, Van Hul M, Everard A, Cani PD, Bindels LB, Delzenne NM. Rhubarb extract prevents hepatic inflammation induced by acute alcohol intake, an effect related to the modulation of the gut microbiota. Mol Nutr Food Res 2016; 61. [PMID: 26990039 DOI: 10.1002/mnfr.201500899] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/26/2016] [Accepted: 03/14/2016] [Indexed: 12/17/2022]
Abstract
SCOPE Binge consumption of alcohol is an alarming global health problem. Acute ethanol intoxication is characterized by hepatic inflammation and oxidative stress, which could be promoted by gut barrier function alterations. In this study, we have tested the hypothesis of the hepatoprotective effect of rhubarb extract in a mouse model of binge drinking and we explored the contribution of the gut microbiota in the related metabolic effects. METHODS AND RESULTS Mice were fed a control diet supplemented with or without 0.3% rhubarb extract for 17 days and were necropsied 6 h after an alcohol challenge. Supplementation with rhubarb extract changed the microbial ecosystem (assessed by 16S rDNA pyrosequencing) in favor of Akkermansia muciniphila and Parabacteroides goldsteinii. Furthermore, it improved alcohol-induced hepatic injury, downregulated key markers of both inflammatory and oxidative stresses in the liver tissue, without affecting significantly steatosis. In the gut, rhubarb supplementation increased crypt depth, tissue weight, and the expression of antimicrobial peptides. CONCLUSIONS These findings suggest that some bacterial genders involved in gut barrier function, are promoted by phytochemicals present in rhubarb extract, and could therefore be involved in the modulation of the susceptibility to hepatic diseases linked to acute alcohol consumption.
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Affiliation(s)
- Audrey M Neyrinck
- Louvain Drug Research Institute, Metabolism and Nutrition Research Group, Université catholique de Louvain, Brussels, Belgium
| | - Usune Etxeberria
- Louvain Drug Research Institute, Metabolism and Nutrition Research Group, Université catholique de Louvain, Brussels, Belgium.,Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain
| | - Bernard Taminiau
- Fundamental and Applied Research for Animal and Health-Department of Food Sciences, Université de Liège, Liège, Belgium
| | - Georges Daube
- Fundamental and Applied Research for Animal and Health-Department of Food Sciences, Université de Liège, Liège, Belgium
| | - Matthias Van Hul
- Louvain Drug Research Institute, Metabolism and Nutrition Research Group, Université catholique de Louvain, Brussels, Belgium.,Walloon Excellence in Life sciences and BIOtechnology (WELBIO), Louvain Drug Research Institute, Brussels, Belgium
| | - Amandine Everard
- Louvain Drug Research Institute, Metabolism and Nutrition Research Group, Université catholique de Louvain, Brussels, Belgium.,Walloon Excellence in Life sciences and BIOtechnology (WELBIO), Louvain Drug Research Institute, Brussels, Belgium
| | - Patrice D Cani
- Louvain Drug Research Institute, Metabolism and Nutrition Research Group, Université catholique de Louvain, Brussels, Belgium.,Walloon Excellence in Life sciences and BIOtechnology (WELBIO), Louvain Drug Research Institute, Brussels, Belgium
| | - Laure B Bindels
- Louvain Drug Research Institute, Metabolism and Nutrition Research Group, Université catholique de Louvain, Brussels, Belgium
| | - Nathalie M Delzenne
- Louvain Drug Research Institute, Metabolism and Nutrition Research Group, Université catholique de Louvain, Brussels, Belgium
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Anthocyanin-rich phenolic extracts of purple root vegetables inhibit pro-inflammatory cytokines induced by H2O2 and enhance antioxidant enzyme activities in Caco-2 cells. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.01.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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22
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Abstract
This review will focus on published human studies on oxidative stress and DNA damage in inflammatory bowel disease (IBD), both ulcerative colitis and Crohn's disease, assessing their role in the pathophysiology of these diseases. Search was performed over PubMed and ScienceDirect databases to identify relevant bibliography, using keywords including "oxidative stress," "DNA damage," "IBD," and "oxidative DNA damage." Whether as cause or effect, mechanisms underlying oxidative stress have the potential to condition the course of various pathologies, particularly those driven by inflammatory scenarios. IBDs are chronic inflammatory relapsing conditions. Oxidative stress has been associated with some of the characteristic clinical features exhibited in IBD, namely tissue injury and fibrosis, and also to the ulcerative colitis-associated colorectal cancer. The possible influence of oxidative stress over therapeutic behavior and response, as well as their contribution to the oxidative burden and consequences, is also addressed. Due to the high prevalence and incidence of IBD worldwide, and also to its associated morbidity, complications, and disease and treatment costs, it is of paramount importance to better understand the pathophysiology of these diseases.
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Fatani AJ, Al-Rejaie SS, Abuohashish HM, Al-Assaf A, Parmar MY, Ahmed MM. Lutein dietary supplementation attenuates streptozotocin-induced testicular damage and oxidative stress in diabetic rats. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:204. [PMID: 26122042 PMCID: PMC4486605 DOI: 10.1186/s12906-015-0693-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Accepted: 05/26/2015] [Indexed: 02/06/2023]
Abstract
Background Diabetes mellitus with the successive generation of reactive oxygen species signifies a major risk factor for testicular dysfunction. Antioxidant supplements are one of the best options to prevent such disorder. In the present study, lutein as dietary supplement has been used to explore its potential protective effects against diabetes-induced oxidative stress in testicular cells. Methods Diabetes was induced using a single IP injection of streptozotocin (STZ). Lutein was mixed with rat chow powder and supplemented to diabetic rats for 5 weeks. Serum testosterone levels were estimated. In testicular cells, thiobarbituric acid reactive substances (TBARS), total sulfhydryl groups (T-GSH), non-protein sulfhydryl groups (NP-SH), superoxide dismutase (SOD) and catalase (CAT) activities were measured. Pro-inflammatory mediators like tumor necrosis factor α (TNF-α) and interleukin 1β (IL-1β) were measured in the testis. Nucleic acids and total protein (TP) levels were also estimated in testicular cells. Histopathological changes were evaluated in testis. Results Serum testosterone level was significantly decreased in diabetic animals compared to controls. Diabetes markedly reduced T-GSH, NP-SH, CAT and SOD, while TBARS, TNF-α and IL-1β levels were increased in the diabetic testis compared to non-diabetic controls. Lutein supplementation, significantly and dose dependently increased the serum testosterone level. The elevated TBARS levels were significantly decreased compared to diabetic group, while the decreased levels of T-GSH and NP-SH and activities of CAT and SOD were found increased by lutein treatments in dose dependent manner. Lutein pretreatment also inhibited the TNF-α and IL-1β levels compared to diabetic group. The decreased values of nucleic acids and total protein in diabetic group were also significantly increased in lutein supplemented groups. The histopathological evaluation revealed protection the damaged testicular cells in the diabetic rats by lutein supplementation. Conclusion These findings showed that lutein has potential beneficial effects in diabetes-induced testicular damage, probably through its antioxidant and anti-inflammatory properties.
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Suzuki K, Nakagawa K, Yamamoto T, Miyazawa T, Kimura F, Kamei M, Miyazawa T. Carbon tetrachloride-induced hepatic and renal damages in rat: inhibitory effects of cacao polyphenol. Biosci Biotechnol Biochem 2015; 79:1669-75. [PMID: 25996516 DOI: 10.1080/09168451.2015.1039481] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Here, we investigated the protective effect of cacao polyphenol extract (CPE) on carbon tetrachloride (CCl4)-induced hepato-renal oxidative stress in rats. Rats were administered CPE for 7 days and then received intraperitoneal injection of CCl4. Two hours after injection, we found that CCl4 treatment significantly increased biochemical injury markers, lipid peroxides (phosphatidylcholine hydroperoxide (PCOOH) and malondialdehyde (MDA)) and decreased glutathione peroxidase activity in kidney rather than liver, suggesting that kidney is more vulnerable to oxidative stress under the present experimental conditions. CPE supplementation significantly reduced these changes, indicating that this compound has antioxidant properties against CCl4-induced oxidative stress. An inhibitory effect of CPE on CCl4-induced CYP2E1 mRNA degradation may provide an explanation for CPE antioxidant property. Together, these results provide quantitative evidence of the in vivo antioxidant properties of CPE, especially in terms of PCOOH and MDA levels in the kidneys of CCl4-treated rats.
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Affiliation(s)
- Koichiro Suzuki
- a Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science , Tohoku University , Sendai , Japan
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Oxidative Stress and Lipid Peroxidation in the Ischemic Small Intestine: Pathological and Biochemical Evaluation in a Rat model of Superior Mesenteric Ischemia. Int Surg 2014; 99:868-74. [PMID: 25437602 DOI: 10.9738/intsurg-d-13-00180.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The purpose of our study was to evaluate the role of oxidative stress and lipid peroxidation in acute mesenteric ischemia. Thirty male Wistar albino rats weighing 240-260 g were randomized into control (no operation), sham (operation without ischemia), and ischemia groups. To induce ischemia, the superior mesenteric artery was sutured. Total antioxidant and oxidant capacity and lipid peroxidase activity were measured in blood samples collected at 0 min, 60 min, and 240 min, and the pathology of ileum segments resected at 240 min was evaluated. Total oxidant status did not differ among the groups. Total antioxidant status increased significantly with time in the ischemia group compared to the control and sham groups (P < 0.001). Although basal arylesterase activity was lower in the ischemia group than controls (P < 0.05), post-ischemia values were similar among the groups. Similarly, basal and stimulated paraoxonase activity in blood samples did not differ among the groups. In conclusion, oxidative stress and lipid peroxidation have no significant role in the pathophysiology of acute mesenteric ischemia.
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Abstract
Endobiogeny is a global systems approach to human biology that may offer an advancement in clinical medicine based in scientific principles of rigor and experimentation and the humanistic principles of individualization of care and alleviation of suffering with minimization of harm. Endobiogeny is neither a movement away from modern science nor an uncritical embracing of pre-rational methods of inquiry but a synthesis of quantitative and qualitative relationships reflected in a systems-approach to life and based on new mathematical paradigms of pattern recognition.
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Affiliation(s)
- Jean-Claude Lapraz
- Société internationale de médecine endobiogénique et de physiologie intégrative, Paris, France
| | - Kamyar M Hedayat
- American society of endobiogenic medicine and integrative physiology, San Diego, California, United States
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Oxidative stress promotes D-GalN/LPS-induced acute hepatotoxicity by increasing glycogen synthase kinase 3β activity. Inflamm Res 2014; 63:485-94. [PMID: 24531650 PMCID: PMC4018480 DOI: 10.1007/s00011-014-0720-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 01/17/2014] [Accepted: 01/25/2014] [Indexed: 12/16/2022] Open
Abstract
Objective Our previous studies have demonstrated that glycogen synthase kinase 3β (GSK3β) activity is increased in the progression of acute liver failure (ALF), which aggravates liver injury, while its regulatory mechanism remains elusive. This study is designated to address whether oxidative stress activates GSK3β to promote ALF. Methods In a murine model induced by d-galactosamine (d-GalN) (700 mg/kg) and LPS (10 μg/kg), N-acetylcysteine (300 mg/kg) or SB216763 (25 mg/kg) was used to inhibit oxidative stress or GSK3β activity, respectively. Serum alanine aminotransferase and aspartate aminotransferase levels were assessed. The parameters of oxidative stress were evaluated in liver tissue. Whether GSK3β inhibition protects hepatocytes from oxidative stress-induced cell apoptosis was investigated in vitro. Moreover, the activity of GSK3β was measured in the liver of chronic hepatitis B (CHB) patients and ALF patients. Results In vivo, N-acetylcysteine ameliorated the d-GalN/LPS-induced hepatotoxicity and reduced GSK3β activity; GSK3β inhibition increased hepatic superoxide dismutase activity and the glutathione content, decreased malondialdehyde production in the liver tissues; while GSK3β inhibition suppressed the JNK activation in the liver and decreased cytochrome c release from mitochondria. In vitro, GSK3β inhibition lessened hepatocytes apoptosis induced by H2O2 or Antimycin A, as demonstrated by decreased LDH activity, and reduced cleavage of caspase-3 expression. Furthermore, GSK3β activity in the CHB patients was increased in the phase of ALF. Conclusions Results indicate that GSK3β activation contributes to liver injury by participating in oxidative stress response in ALF and is, therefore, a potential therapeutic target for ALF.
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Mazzolin LP, Kiguti LRDA, da Maia EO, Fernandes LTL, da Rocha LRM, Vilegas W, Pupo AS, Di Stasi LC, Hiruma-Lima CA. Antidiarrheal and intestinal antiinflammatory activities of a methanolic extract of Qualea parviflora Mart. in experimental models. JOURNAL OF ETHNOPHARMACOLOGY 2013; 150:1016-1023. [PMID: 24157378 DOI: 10.1016/j.jep.2013.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/20/2013] [Accepted: 10/03/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE An ethnopharmacological survey indicated that the bark from Qualea parviflora Mart. (Vochysiaceae) could be used to treat gastrointestinal disorders, such as diarrhea and intestinal inflammation. The objective of this study was to evaluate the effects of a methanolic extract from the bark of Qualea parviflora (QP) in an experimental model of diarrhea and intestinal inflammation induced in rodents. MATERIAL AND METHODS The antidiarrheal and antispasmodic effects of QP were investigated by measuring intestinal motility, diarrhea, and intestinal fluid accumulation in rodents after challenging with a cathartic agent. In addition, the effects of QP on the contractility of the isolated mice-ileum preparation were determined. Acute intestinal inflammation was induced in male Wistar rats by the rectal administration of trinitrobenzenesulfonic acid (TNBS) in 50% ethanol (0.25 mL). QP was administered orally (for 5 days) prior to the induction of inflammation. The colonic injury and extent of inflammation were assessed by macroscopic damage scores and lesion length. The enhanced colonic mucosal injury, inflammatory response, and oxidative stress were evaluated by myeloperoxidase (MPO) activity; the tumor necrosis factor alpha (TNF-α), interleukin 1β (IL1-β), and malondialdehyde (MDA) levels; and the glutathione (GSH) content. RESULTS Oral treatment with QP (500 mg/kg) delayed the onset of diarrhea, reduced the amount of liquid stool, and decreased the severity of the diarrhea and the evacuation index in rodents challenged with castor oil (p<0.01). Additionally, QP (150-500 µg/mL) demonstrated effective antispasmodic activity against carbachol-induced contractions of mouse ileum in vitro. Oral treatment (25 and 50 mg/kg/day) with QP significantly reduced the intestinal inflammation induced by TNBS in rats (52% and 45%, respectively). Improvement of colonic mucosal injury by treatment with QP was demonstrated by a decrease in MDA levels and an increase in GSH content in colonic tissue. QP also prevented intestinal inflammation as evidenced by reduced cytokine levels (TNF-α and IL1-β) and low MPO activity. CONCLUSIONS The ethnopharmacological usefulness of the bark from Qualea parviflora against diarrhea containing blood and mucus was supported by the observed antidiarrheal, antispasmodic, and intestinal antiinflammatory properties of this medicinal plant.
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Affiliation(s)
- Lucilene Patrícia Mazzolin
- Univ. Estadual Paulista-UNESP - Departamento de Fisiologia, Instituto de Biociências, CEP 18618-970, Botucatu, SP, Brazil
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Han C, Zhang L, Zhu X, Tang J, Jin X. Plasma gelsolin levels are decreased and correlate with fibrosis in IgA nephropathy. Exp Biol Med (Maywood) 2013; 238:1318-27. [PMID: 24047794 DOI: 10.1177/1535370213503256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
IgA nephropathy (IgAN) is an immune complex glomerulonephritis that is characterized by recurrent hematuria as the main clinical manifestation. In this study, we used the IgAN mouse model which was previously established to investigate the possible mechanism by which IgAN fibrosis correlates with decreased plasma gelsolin (pGSN) levels. We investigated the levels of pGSN, transforming growth factor β1 (TGFβ1), and oxidative stress markers including superoxide dismutase (SOD), catalase (CAT), glutathione (GSH), and malondialdehyde (MDA) in the serum and renal tissues of different groups. The between-group differences and correlations in the results for the IgAN group were analyzed with statistical methods. The pathological and urinalysis results obtained from the IgAN mouse model showed that this model conforms to the basic lesion characteristics observed in human IgAN. The serum pGSN levels and SOD, CAT, GSH levels in renal tissues were decreased in the IgAN group (P < 0.01), and pGSN, TGFβ1, MDA levels in renal tissues of the IgAN group were increased which compared with those in the other groups (P < 0.01). The correlation analysis for serum pGSN levels in the IgAN group showed a significant correlation with different test results (P < 0.01). The possible mechanism by which IgAN fibrosis correlates with decreased pGSN levels involves the regulation of TGFβ1 and oxidative stress.
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Affiliation(s)
- Changsong Han
- Department of Pathology, Harbin Medical University, Harbin 150081 The People's Republic of China
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Marín-Loaiza JC, Nieto-Camacho A, Céspedes CL. Antioxidant and anti-inflammatory activities of Pittocaulon species from México. PHARMACEUTICAL BIOLOGY 2013; 51:260-266. [PMID: 23127192 DOI: 10.3109/13880209.2012.718352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
UNLABELLED context: Stems and leaves of Pittocaulon spp. (Asteraceae) are used in Mexican traditional medicine as an anti-inflammatory substance and for the treatment of skin injuries. OBJECTIVE This study evaluated the antioxidant activity of methanol (MeOH) and dichloromethane (DC) extracts of five Pittocaulon species. MATERIALS AND METHODS DC and MeOH extracts from flowers, roots, and stems of Pittocaulon praecox (Cav.) H. Rob. & Brettell, P. bombycophole (Bullock) H. Rob. & Brettell, P. filare (Mc Vaugh) H. Rob. & Brettell, P. velatum (Greenm.) Rob. & Brettell and P. hintonii H. Rob. & Brettell. RESULT AND DISCUSSION In the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, the flower extracts obtained with MeOH were the most active with IC(50) values ranging from 51.83 ± 4.08 to 154.19 ± 8.39 ppm. In the thiobarbituric acid reactive substances (TBARS) model, the best activity was shown by DC extracts of roots with IC(50) values ranging from 55.54 ± 1.28 to 160.82 ± 5.37 ppm. The MeOH extract of flowers of P. bombycophole had the highest IC(50) value in both DPPH (51.83 ± 4.08 ppm) and TBARS (39.78 ± 1.97 ppm). The samples with the best values in the antioxidant activity assays were evaluated in the anti-inflammatory tests. The DC root extract of P. velatum at a dose of 1 mg/ear produced the greatest reduction (84.96%) of the 2-O-tetradecanoylphorbol-13-acetate (TPA)-induced mouse ear edema. This extract also reduced the activity of the enzyme myeloperoxidase (MPO) (73.65%) at the same dose. In contrast, DC root extract of this species did not show significant inhibition of the increase in paw edema induced by carrageenan at the doses tested (100 mg/kg). CONCLUSION These results support the traditional use of these plants as anti-inflammatory. DC extracts of P. velatum and MeOH extracts of P. bombycophole may be a potential resource of natural anti-inflammatory and antioxidant compounds, respectively. Additional studies must be done to identify the compounds responsible of the activity on these plants and to establish the mechanism of action.
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Affiliation(s)
- J Camilo Marín-Loaiza
- Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Edificio 450, Oficina 107, Bogotá, Colombia
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Kumar S, Prahalathan P, Raja B. Syringic acid ameliorates l-NAME-induced hypertension by reducing oxidative stress. Naunyn Schmiedebergs Arch Pharmacol 2012; 385:1175-84. [DOI: 10.1007/s00210-012-0802-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Accepted: 10/09/2012] [Indexed: 12/14/2022]
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Kumar S, Prahalathan P, Raja B. Antihypertensive and antioxidant potential of vanillic acid, a phenolic compound in L-NAME-induced hypertensive rats: a dose-dependence study. Redox Rep 2012; 16:208-15. [PMID: 22005341 DOI: 10.1179/1351000211y.0000000009] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
We investigated the antihypertensive and antioxidant potential of vanillic acid (VA) in N(ω)-Nitro-L-arginine methyl ester hydrochloride (L-NAME) - treated adult male albino Wistar rats. Treatment of rats with L-NAME (40 mg/kg Bw for 30 days) caused a sustained increase in systolic- (SBP) and diastolic blood pressure (DBP) and significantly decreased the concentration of nitrite/nitrate (NO(x)) in plasma as compared with that in the control. Rats treated with VA restored SBP and DBP to normal level and preserve the plasma NO metabolites concentration. Moreover, VA reduced lipid peroxidation products (thiobarbituric acid reactive substances, lipid hydroperoxides, conjugated dienes) and significantly restored enzymatic antioxidants (superoxide dismutase, catalase, and glutathione peroxidase), non-enzymatic antioxidants (vitamin C, vitamin E, and reduced glutathione) in the plasma. To assess the toxicity if any of VA treatment, hepatic and renal function markers were measured. Our results showed that the effect at a dose of 50 mg/kg Bw of VA was more pronounced than that of the other two doses, 25 and 100 mg/kg Bw. These results were supported by histopathology studies. We conclude that VA possesses an antihypertensive and antioxidant activity in L-NAME-induced hypertensive rats.
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Affiliation(s)
- Subramanian Kumar
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
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Khan MT, Duncan SH, Stams AJM, van Dijl JM, Flint HJ, Harmsen HJM. The gut anaerobe Faecalibacterium prausnitzii uses an extracellular electron shuttle to grow at oxic-anoxic interphases. ISME JOURNAL 2012; 6:1578-85. [PMID: 22357539 DOI: 10.1038/ismej.2012.5] [Citation(s) in RCA: 215] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Faecalibacterium prausnitzii is one of the most abundant bacteria in the human gut ecosystem and it is an important supplier of butyrate to the colonic epithelium. Low numbers of faecalibacteria have been associated with inflammatory bowel disease. Despite being extremely oxygen sensitive, F. prausnitzii is found adherent to the gut mucosa where oxygen diffuses from epithelial cells. This paradox is now explained on the basis of gas tube experiments, flavin-dependent reduction of 5,5'-dithiobis-2-nitrobenzoate and microbial fuel cell experiments. The results show that F. prausnitzii employs an extracellular electron shuttle of flavins and thiols to transfer electrons to oxygen. Both compounds are present in the healthy human gut. Our observations may have important implications for the treatment of patients with Crohn's disease, for example, with flavin- or antioxidant rich diets, and they provide a novel key insight in host-microbe interactions at the gut barrier.
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Affiliation(s)
- M Tanweer Khan
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen, The Netherlands
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Yukitake H, Kimura H, Suzuki H, Tajima Y, Sato Y, Imaeda T, Kajino M, Takizawa M. BTZO-15, an ARE-activator, ameliorates DSS- and TNBS-induced colitis in rats. PLoS One 2011; 6:e23256. [PMID: 21853095 PMCID: PMC3154330 DOI: 10.1371/journal.pone.0023256] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 07/09/2011] [Indexed: 01/12/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a group of chronic inflammatory disorders that are primarily represented by ulcerative colitis and Crohn's disease. The etiology of IBD is not well understood; however, oxidative stress is considered a potential etiological and/or triggering factor for IBD. We have recently reported the identification of BTZO-1, an activator of antioxidant response element (ARE)-mediated gene expression, which protects cardiomyocytes from oxidative stress-induced insults. Here we describe the potential of BTZO-15, an active BTZO-1 derivative for ARE-activation with a favorable ADME-Tox profile, for the treatment of IBD. BTZO-15 induced expression of heme oxygenase-1 (HO-1), an ARE-regulated cytoprotective protein, and inhibited NO-induced cell death in IEC-18 cells. Large intestine shortening, rectum weight gain, diarrhea, intestinal bleeding, and an increase in rectal myeloperoxidase (MPO) activity were observed in a dextran sulfate sodium (DSS)-induced colitis rat model. Oral administration of BTZO-15 induced HO-1 expression in the rectum and attenuated DSS-induced changes. Furthermore BTZO-15 reduced the ulcerated area and rectal MPO activity in 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis rats without affecting rectal TNF-α levels. These results suggest that BTZO-15 is a promising compound for a novel IBD therapeutic drug with ARE activation properties.
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Affiliation(s)
- Hiroshi Yukitake
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Haruhide Kimura
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
- * E-mail:
| | - Hirobumi Suzuki
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Yasukazu Tajima
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Yoshimi Sato
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Toshihiro Imaeda
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Masahiro Kajino
- Chemistry, Manufacturing and Controls, Takeda Pharmaceutical Company Limited, Osaka, Japan
| | - Masayuki Takizawa
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
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Cunha FLD, Silva CMGD, Almeida MGD, Lameiro TMDM, Marques LHS, Margarido NF, Martinez CAR. Reduction in oxidative stress levels in the colonic mucosa without fecal stream after the application of enemas containing aqueous Ilex paraguariensis extract. Acta Cir Bras 2011; 26:289-96. [DOI: 10.1590/s0102-86502011000400008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Accepted: 03/18/2011] [Indexed: 01/12/2023] Open
Abstract
PURPOSE: To evaluate the antioxidant effects of enemas containing aqueous extract of Ilex paraguariensis, comparing segments with and without fecal stream and correlating the segments with the duration of intervention. METHODS: Twenty-six Wistar rats were subjected to a diversion of the fecal stream in the left colon by a proximal colostomy and distal mucosal fistula. The rats were distributed randomly into two experimental groups of 13 animals each based on the time of sacrifice after surgical procedure (two or four weeks). Each group was then divided into two experimental subgroups that received either second daily enemas containing 0.9% saline solution or aqueous extract of Ilex paraguariensis at 0.2g/100g. Colitis was diagnosed by histopathological analysis and the detection of oxidative tissue damage by measuring the levels of malondialdehyde. The Mann-Whitney test was used to compare the tissue levels of malondialdehyde between colon segments with and without fecal stream in each experimental group, and the Kruskal-Wallis test was used to verify the variance between the levels of oxidative stress according the duration of the irrigation; both tests determined significance at 5% (p<0.05). RESULTS: The levels of malondialdehyde in the animals subjected to intervention in the colon with saline with and without fecal stream after two and four weeks of irrigation were 0.05±0.006 and 0.06±0.006, and 0.05± 0.03 and 0.08 ±0.02, respectively. The malondialdehyde levels in the animals irrigated with Ilex paraguariensis with and without fecal stream after two and four weeks of irrigation were 0.010±0.002 and 0.02±0.004, and 0.03±0.007 and 0.04±0.01, respectively. After two and four weeks of intervention, the levels of malondialdehyde were lower in the animals irrigated with Ilex paraguariensis regardless of the time of irrigation (p=0.0001 and p=0.002, respectively). CONCLUSION: The daily rectal application of enemas containing aqueous extract of Ilex paraguariensis decreases oxidative tissue damage in the colon without fecal stream regardless of the time of irrigation.
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Aviello G, Canadanovic-Brunet JM, Milic N, Capasso R, Fattorusso E, Taglialatela-Scafati O, Fasolino I, Izzo AA, Borrelli F. Potent antioxidant and genoprotective effects of boeravinone G, a rotenoid isolated from Boerhaavia diffusa. PLoS One 2011; 6:e19628. [PMID: 21625488 PMCID: PMC3098844 DOI: 10.1371/journal.pone.0019628] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Accepted: 04/11/2011] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND AIMS Free radicals are implicated in the aetiology of some gastrointestinal disorders such as gastric ulcer, colorectal cancer and inflammatory bowel disease. In the present study we investigated the antioxidant and genoprotective activity of some rotenoids (i.e. boeravinones) isolated from the roots of Boerhaavia diffusa, a plant used in the Ayurvedic medicine for the treatment of diseases affecting the gastrointestinal tract. METHODS/PRINCIPAL FINDINGS Antioxidant activity has been evaluated using both chemical (Electron Spin Resonance spectroscopy, ESR) and Caco-2 cells-based (TBARS and ROS) assays. DNA damage was evaluated by Comet assay, while pERK(1/2) and phospho-NF-kB p65 levels were estimated by western blot. Boeravinones G, D and H significantly reduced the signal intensity of ESR induced by hydroxyl radicals, suggesting a scavenging activity. Among rotenoids tested, boeravinone G exerted the most potent effect. Boeravinone G inhibited both TBARS and ROS formation induced by Fenton's reagent, increased SOD activity and reduced H(2)O(2)-induced DNA damage. Finally, boeravinone G reduced the levels of pERK(1) and phospho-NF-kB p65 (but not of pERK(2)) increased by Fenton's reagent. CONCLUSIONS It is concluded that boeravinone G exhibits an extraordinary potent antioxidant activity (significant effect in the nanomolar range). The MAP kinase and NF-kB pathways seem to be involved in the antioxidant effect of boeravinone G. Boeravinone G might be considered as lead compound for the development of drugs potentially useful against those pathologies whose aetiology is related to ROS-mediated injuries.
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Affiliation(s)
- Gabriella Aviello
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | | | - Natasa Milic
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Raffaele Capasso
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Ernesto Fattorusso
- Department of Natural Products Chemistry, University of Naples Federico II, Naples, Italy
| | | | - Ines Fasolino
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Angelo A. Izzo
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Francesca Borrelli
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
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Abstract
Alcoholic pancreatitis is a major complication of alcohol abuse. The risk of developing pancreatitis increases with increasing doses of alcohol, suggesting that alcohol exerts dose-related toxic effects on the pancreas. However, it is also clear that only a minority of alcoholics develop the disease, indicating that an additional trigger may be required to initiate clinically evident pancreatic injury. It is now well established that alcohol is metabolized by the pancreas via both oxidative and non-oxidative metabolites. Alcohol and its metabolites produce changes in the acinar cells, which may promote premature intracellular digestive enzyme activation thereby predisposing the gland to autodigestive injury. Pancreatic stellate cells (PSCs) are activated directly by alcohol and its metabolites and also by cytokines and growth factors released during alcohol-induced pancreatic necroinflammation. Activated PSCs are the key cells responsible for producing the fibrosis of alcoholic chronic pancreatitis. Efforts to identify clinically relevant factors that may explain the susceptibility of some alcoholics to pancreatitis have been underway for several years. An unequivocal, functionally characterized, association is yet to be identified in clinical studies, although in the experimental setting, endotoxin has been shown to trigger overt pancreatic injury and to promote disease progression in alcohol-fed animals. Thus, while the molecular effects of alcohol on the pancreas have been increasingly clarified in recent years, identification of predisposing or triggering factors remains a challenge.
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Affiliation(s)
- Minoti V Apte
- Pancreatic Research Group, South Western Sydney Clinical School, Liverpool Hospital and School of Medical Sciences, University of New South Wales, Sydney, Australia.
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New light on the anti-colitic actions of therapeutic aminosalicylates: the role of heme oxygenase. Pharmacol Rep 2010; 62:548-56. [PMID: 20631420 DOI: 10.1016/s1734-1140(10)70312-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 04/22/2010] [Indexed: 12/21/2022]
Abstract
Although a variety of pharmaceutical preparations of aminosalicylate are commonly used in the clinic for the control of inflammatory bowel disease, the mechanisms underlying their therapeutic actions remain unclear. Recent in vivo and in vitro studies have demonstrated that 5-aminosalicylic acid (5-ASA), regarded as the active moiety in aminosalicylate preparations such as sulfasalazine, can induce the heat shock protein, heme oxygenase-1 (HO-1) and up-regulate HO enzyme activity in the colon. As HO-1 can produce endogenous anti-oxidant and anti-inflammatory moieties such as bilirubin and carbon monoxide (CO), these findings suggest a novel mechanism of action for aminosalicylates, acting as anti-colitic agents through the up-regulation of HO-1 enzyme expression and activity.
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Marques LHS, Silva CMGD, Lameiro TMDM, Almeida MGD, Cunha FLD, Pereira JA, Martinez CAR. Avaliação dos níveis de peroxidação lipídica em células da mucosa cólica após aplicação de enemas com peróxido de hidrogênio: estudo experimental em ratos. ACTA ACUST UNITED AC 2010. [DOI: 10.1590/s0101-98802010000300002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A aplicação de clisteres contendo peróxido de hidrogênio (H2O2) determina o aparecimento de quadros graves de colite, algumas vezes de evolução fatal. É possível que a colite induzida por H2O2 possa ocorrer pela quebra da barreira funcional do epitélio cólico por estresse oxidativo. Objetivo: Avaliar os níveis de peroxidação lipídica em células da mucosa cólica após instilação de H2O2 no reto excluso de trânsito fecal. Método: Vinte seis ratos Wistar machos foram submetidos a colostomia proximal terminal no cólon descendente e fístula mucosa distal. Os animais foram randomizados em dois grupos segundo o sacrifício ter sido realizado duas ou quatro semanas após a derivação intestinal. Cada grupo experimental foi dividido e dois subgrupos segundo aplicação de clisteres, em dias alternados, contendo solução fisiológica a 0,9% ou H2O2 a 3%. O diagnóstico de colite foi estabelecido por estudo histopatológico e os níveis de dano oxidativo tecidual pela dosagem de malondialdeído por espectrofotometria. Os resultados foram analisados com os testes de Mann-Whitney e Kruskal-Wallis, estabelecendo-se nível de significância de 5% (p<0,05). Resultados: Os níveis de malondialdeído nos irrigados com SF nos cólons com e sem trânsito fecal após duas e quatro semanas de irrigação foram de: 0,05 ± 0,006; 0,06 ± 0,006 e 0,05 ± 0,03, 0,08 ± 0,02, respectivamente. Os níveis de malondialdeído nos irrigados com H2O2, nos cólons com e sem trânsito, após duas e quatro semanas de irrigação foram de 0,070 ± 0,006; 0,077 ± 0,01 e 0,052 ± 0,01, 0,08 ± 0,04, respectivamente. Após duas semanas os níveis de malondialdeído foram maiores nos animais irrigados com H2O2 em relação ao grupo controle (p= 0,007 e p= 0,01, respectivamente). Após quatro semanas não houve diferenças significantes Não ocorreu variação nos níveis de malondialdeído com o decorrer tempo de irrigação. Conclusão: Clisteres com H2O2, podem determinar o aparecimento de colite por ocasionarem estresse oxidativo nas células epiteliais da mucosa intestinal.
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Epoetin delta reduces oxidative stress in primary human renal tubular cells. J Biomed Biotechnol 2010; 2010:395785. [PMID: 20454536 PMCID: PMC2864893 DOI: 10.1155/2010/395785] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Revised: 02/17/2010] [Accepted: 02/17/2010] [Indexed: 02/07/2023] Open
Abstract
Erythropoietin (EPO) exerts (renal) tissue protective effects. Since it is unclear whether this is a direct effect of EPO on the kidney or not, we investigated whether EPO is able to protect human renal tubular epithelial cells (hTECs) from oxidative stress and if so which pathways are involved. EPO (epoetin delta) could protect hTECs against oxidative stress by a dose-dependent inhibition of reactive oxygen species formation. This protective effect is possibly related to the membranous expression of the EPO receptor (EPOR) since our data point to the membranous EPOR expression as a prerequisite for this protective effect. Oxidative stress reduction went along with the upregulation of renoprotective genes. Whilst three of these, heme oxygenase-1 (HO-1), aquaporin-1 (AQP-1), and B-cell CLL/lymphoma 2 (Bcl-2) have already been associated with EPO-induced renoprotection, this study for the first time suggests carboxypeptidase M (CPM), dipeptidyl peptidase IV (DPPIV), and cytoglobin (Cygb) to play a role in this process.
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The proanthocyanidins inhibit dimethylnitrosamine-induced liver damage in rats. Arch Pharm Res 2010; 33:167-73. [PMID: 20191358 DOI: 10.1007/s12272-010-2239-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Revised: 10/16/2009] [Accepted: 12/03/2009] [Indexed: 02/06/2023]
Abstract
Proanthocyanidins are naturally occurring compounds widely available in fruits, vegetables, nuts and seeds. They are a class of phenolic compounds and have been reported to exhibit a wide range of biological effects. In this study, we investigated the protective effect of grape seed proanthocyanidins on hepatic injury induced by dimethylnitrosamine (DMN) in rats. Treatment with DMN caused a significant increase in levels of serum alanine transaminase, aspartate transaminase, alkaline phosphatase, and bilirubin. Oral administration of proanthocyanidins (20 mg/kg daily for 4 weeks) remarkably prevented these elevations. Proanthocyanidins also restored serum albumin and total protein levels, and reduced the hepatic level of malondialdehyde. Furthermore, DMN-induced collagen accumulation, as estimated by histological analysis of liver tissue stained with Sirius red, was reduced in the proanthocyanidins-treated rats. A reduction in hepatic stellate cell activation, as assessed by alpha-smooth muscle actin staining, was associated with proanthocyanidins treatment. In conclusion, these results demonstrate that proanthocyanidins exhibited in vivo hepatoprotective and anti-fibrogenic effects against DMN-induced liver injury. It suggests that grape seed proanthocyanidins may be useful in preventing the development of hepatic fibrosis.
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Diesen DL, Kuo PC. Nitric oxide and redox regulation in the liver: Part I. General considerations and redox biology in hepatitis. J Surg Res 2009; 162:95-109. [PMID: 20444470 DOI: 10.1016/j.jss.2009.09.019] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Revised: 09/01/2009] [Accepted: 09/04/2009] [Indexed: 12/16/2022]
Abstract
Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are created in normal hepatocytes and are critical for normal physiologic processes, including oxidative respiration, growth, regeneration, apoptosis, and microsomal defense. When the levels of oxidation products exceed the capacity of normal antioxidant systems, oxidative stress occurs. This type of stress, in the form of ROS and RNS, can be damaging to all liver cells, including hepatocytes, Kupffer cells, stellate cells, and endothelial cells, through induction of inflammation, ischemia, fibrosis, necrosis, apoptosis, or through malignant transformation by damaging lipids, proteins, and/or DNA. In Part I of this review, we will discuss basic redox biology in the liver, including a review of ROS, RNS, and antioxidants, with a focus on nitric oxide as a common source of RNS. We will then review the evidence for oxidative stress as a mechanism of liver injury in hepatitis (alcoholic, viral, nonalcoholic). In Part II of this review, we will review oxidative stress in common pathophysiologic conditions, including ischemia/reperfusion injury, fibrosis, hepatocellular carcinoma, iron overload, Wilson's disease, sepsis, and acetaminophen overdose. Finally, biomarkers, proteomic, and antioxidant therapies will be discussed as areas for future therapeutic interventions.
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Affiliation(s)
- Diana L Diesen
- Department of Surgery, Duke University Medical Center, Durham, North Carolina 27710, USA
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Dost T, Ozkayran H, Gokalp F, Yenisey C, Birincioglu M. The effect of Hypericum perforatum (St. John's Wort) on experimental colitis in rat. Dig Dis Sci 2009; 54:1214-21. [PMID: 18754092 DOI: 10.1007/s10620-008-0477-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2008] [Accepted: 07/24/2008] [Indexed: 01/12/2023]
Abstract
The aim of the present study was to investigate the effect of Hypericum perforatum (HP) on the inflammatory and immune response of colonic mucosa in rat with induced inflammatory bowel disease and that on various enzyme activities in blood and bowel tissue. Male Wistar albino rats were divided into three main groups: control, third day, and seventh day of colitis. Third-day and seventh-day groups were divided into four subgroups. Colitis was induced in all groups except the control group by 2,4,6-trinitrobenzene sulfonic acid (TNBS). The colitis group received saline; treatment groups received HP extract (50, 150, and 300 mg/kg/day, respectively). Glutathione (GSH), catalase (CAT), and malondialdehyde (MDA) activities in blood were measured. Catalase, myeloperoxidase (MPO), glutathione peroxidase (GSH-Px), glutathione reductase (GR), malondialdehyde, and nitric oxide (NO) activities were measured from tissue samples. Colonic damage was significantly reduced by HP extract. Macroscopic scoring of colonic damage significantly reduced in groups given HP extract compared with in the colitis group (P < 0.001). Blood catalase levels were reduced in the HP (150 mg/kg/day) compared with the colitis group (P < 0.01). Blood GSH levels significantly increased in groups treated with HP compared with control (P < 0.001) on the third and seventh day. Tissue GR levels reduced in the colitis and HP (50 mg/kg/day) groups compared with control (P < 0.05). Tissue MPO activity increased in the colitis and treatment groups compared with control (P < 0.007). GSH-Px levels increased in the colitis group compared with control at day 3 (P = 0.006). HP has a protective effect on TNBS-induced inflammatory bowel disease (IBD), probably due to an anti-inflammatory and antioxidant mechanism.
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Affiliation(s)
- Turhan Dost
- Department of Pharmacology, Medical Faculty, Adnan Menderes University, Aydin, Turkey.
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Turan A, Mahmood A, Alpers DH. Dietary Fat Feeding Alters Lipid Peroxidation in Surfactant-like Particles Secreted by Rat Small Intestine. Gastroenterology Res 2009; 2:91-99. [PMID: 27956960 PMCID: PMC5139824 DOI: 10.4021/gr2009.03.1280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/27/2009] [Indexed: 11/21/2022] Open
Abstract
Background Long-term feeding of fish oil (n-3) and corn oil (n-6) markedly enhances levels of lipid peroxidation within isolated rat enterocytes. The effect is 10-fold greater at the villus tip than in the crypt region, correlating with the distribution of deleterious oxidative systems (glutathione reductase) in the tip and beneficial systems (superoxide dismutase) at the base of the villus. Because of this vertical gradient of peroxidation, the process was thought to play a role in apoptosis of enterocytes at the villus tip. Surfactant-like particles (SLPs) are membranes secreted by the enterocyte and a component of these membranes is directed to the intestinal surface overlying villus tips. One suggested role for SLPs has been to protect the mucosal surface from the harsh luminal conditions that might enhance apoptotic loss of enterocytes. The hypothesis to be tested was whether SLP lipids, like those in enterocytes, were also peroxidized, although they were external to the cellular processes that seem to oxidize enterocyte lipids, or whether SLP were immune to these biological processes. Feeding with groundnut oil (n-9) was compared with fish oil (n-3) and corn oil (predominantly n-6) to determine whether oils with various lipid composition would affect peroxidation in both SLP and enterocytes. Methods After an overnight fast, Wistar rats were fed 2 mL of dietary oil by gavage. Five hours later SLPs and underlying microvillus membranes (MVM) were isolated and analyzed for generation of thiobarbituric acid reactive substances (TBARS) and for hydrolase activities, at baseline and after addition of an Fe+2/ascorbate system to induce peroxidation. Results In vitro lipid peroxidation using the Fe2+/ascorbate system produced greater peroxidation than in MVM. Intestinal alkaline phosphatase (IAP), sucrase and lactase activities were decreased in SLPs, but were unaltered in MVM except for IAP. The activities of maltase, trehalase, Leucine aminopeptidase and γ–glutamyltranspeptidase, were unaffected both in SLPs and MVM under these conditions. Conclusions SLPs are more susceptible to oxidative damage than are the underlying MVMs. This may reflect results of a hostile luminal environment. It is not clear whether SLPs are acting as a lipid ‘sink’ to protect the MVM from greater oxidation, or are providing an initial stimulus for apoptosis of villus tip enterocytes, or both.
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Affiliation(s)
- Aasma Turan
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India
| | - Akhtar Mahmood
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India
| | - David H Alpers
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
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Clària J, Horrillo R, Martínez-Clemente M, Morán-Salvador E, Titos E, González-Périz A, Ferré N. [Basic mechanisms of hepatocellular injury. Role of inflammatory lipid mediators]. GASTROENTEROLOGIA Y HEPATOLOGIA 2009; 31:682-92. [PMID: 19174085 DOI: 10.1016/s0210-5705(08)75816-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2008] [Accepted: 03/14/2008] [Indexed: 10/20/2022]
Abstract
The presence of a lesion in the cellular parenchyma is common to a large number of chronic liver diseases, such as viral hepatitides, alcoholic hepatitis, chronic cholestasis and steatohepatitis. Although the pathogenesis may vary according to the etiological agent, a series of mechanisms is common to all. Notable among these mechanisms are Kupffer cell activation and inflammatory cell recruitment, free oxygen radical formation and the development of oxidative stress, cytokine production, mainly TNFa and TGFb, and inflammatory mediator release due to arachidonic acid oxidation through the COX-2 and 5-LO pathways.
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Affiliation(s)
- Juan Clària
- Servicio de Bioquímica y Genética Molecular, Hospital Clínic, Centro de Investigación Biomédica Esther Koplowitz (CIBEK) y CIBER de Enfermedades Hepáticas y Digestivas (CIBEREHD), IDIBAPS, Universitat de Barcelona, Barcelona, Spain.
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Kim HR, Rajaiah R, Wu QL, Satpute SR, Tan MT, Simon JE, Berman BM, Moudgil KD. Green tea protects rats against autoimmune arthritis by modulating disease-related immune events. J Nutr 2008; 138:2111-6. [PMID: 18936206 DOI: 10.3945/jn.108.089912] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Green tea, a product of the dried leaves of Camellia sinensis, is the most widely consumed beverage in the world. The polyphenolic compounds from green tea (PGT) possess antiinflammatory properties. We investigated whether PGT can afford protection against autoimmune arthritis and also examined the immunological basis of this effect using the rat adjuvant arthritis (AA) model of human rheumatoid arthritis (RA). AA can be induced in Lewis rats (RT.1(l)) by immunization with heat-killed Mycobacterium tuberculosis H37Ra (Mtb), and arthritic rats raise a T cell response to the mycobacterial heat-shock protein 65 (Bhsp65). Rats consumed green tea (2-12 g/L) in drinking water for 1-3 wk and then were injected with Mtb to induce disease. Thereafter, they were observed regularly and graded for signs of arthritis. Subgroups of these rats were killed at defined time points and their draining lymph node cells were harvested and tested for T cell proliferative and cytokine responses. Furthermore, the sera collected from these rats were tested for anti-Bhsp65 antibodies. Feeding 8 g/L PGT to Lewis rats for 9 d significantly reduced the severity of arthritis compared with the water-fed controls. Interestingly, PGT-fed rats had a lower concentration of the proinflammatory cytokine interleukin (IL)-17 but a greater concentration of the immunoregulatory cytokine IL-10 than controls. PGT feeding also suppressed the anti-Bhsp65 antibody response. Thus, green tea induced changes in arthritis-related immune responses. We suggest further systematic exploration of dietary supplementation with PGT as an adjunct nutritional strategy for the management of RA.
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Affiliation(s)
- Hong Ro Kim
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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Roggenbuck C, Lammert F, Berthold HK, Giese T, Stallmach A, Stehle P, Ellinger S. High-dose oral supplementation of antioxidants and glutamine improves the antioxidant status in patients with Crohn's disease: A pilot study. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.eclnm.2008.06.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Osman N, Adawi D, Ahrné S, Jeppsson B, Molin G. Probiotics and blueberry attenuate the severity of dextran sulfate sodium (DSS)-induced colitis. Dig Dis Sci 2008; 53:2464-73. [PMID: 18274903 DOI: 10.1007/s10620-007-0174-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2006] [Accepted: 12/20/2007] [Indexed: 12/27/2022]
Abstract
We studied the anti-inflammatory properties of probiotic strains and blueberry in a colitis model. The disease activity index (DAI) was significantly lower on days 9 and 10 in all groups compared to the colitis control. Myeloperoxidase (MPO) and bacterial translocation to the liver and to the mesenteric lymph nodes (MLN) decreased significantly in all groups compared to colitis control. Cecal Enterobacteriaceae count decreased significantly in blueberry with and without probiotics compared to the other groups. Lactobacillus plantarum reisolated from the cecal content in the presence of blueberry, contrary to Lactobacillus fermentum. Colonic MDA decreased significantly in all groups, except the L. fermentum group, compared to the colitis control. The cecal concentration of acetic, propionic, and butyricbutyric acid was significantly higher in the L. plantarum group, while the L. fermentum group yielded the highest concentration of lactic acid compared with all other groups. Lactobacillus plantarum DSM 15313, Lactobacillus fermentum 35D, and blueberry alone and in combination improve the DAI, reduce bacterial translocation, and reduce inflammation.
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Affiliation(s)
- Nadia Osman
- Food Hygiene, Department of Food Technology, Engineering and Nutrition, Lund University, Malmo, Sweden
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El-Abhar HS, Hammad LNA, Gawad HSA. Modulating effect of ginger extract on rats with ulcerative colitis. JOURNAL OF ETHNOPHARMACOLOGY 2008; 118:367-72. [PMID: 18571884 DOI: 10.1016/j.jep.2008.04.026] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2007] [Revised: 02/09/2008] [Accepted: 04/23/2008] [Indexed: 05/26/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ginger rhizomes are used traditionally for management of different gastrointestinal disturbances. Several studies proved that the rhizome possesses diverse biological activities such as cytotoxic, antioxidant, and anti-inflammatory effects. Recently, interest in ginger for treatment of chronic inflammatory conditions has been renewed. AIM OF THE STUDY The purpose of the present study is to evaluate the potential role of ginger extract [GE] in modulating the extent and severity of ulcerative colitis (UC), a chronically recurrent inflammatory bowel disease of unknown origin. MATERIALS AND METHODS Male Wistar rats received 3 different doses of GE, sulfasalazine, or vehicle for 3 consecutive days before induction of UC by intra-rectal acetic acid administration, and continued further for 7 days after the induction. The colonic mucosal injury was assessed by macroscopic scoring, and histological examination. Furthermore, the mucosal content of malondialdehyde (MDA), protein carbonyl (PCO), and reduced glutathione (GSH) with the catalase (CAT) and superoxide dismutase (SOD) activity, were appraised as parameters of the redox state. Acute inflammatory response was determined by measuring myeloperoxidase (MPO), tumor necrosis factor (TNF-alpha), and prostaglandin E2 (PGE2). RESULTS All parameters were altered in ulcerated rats, and improved in animals receiving GE, an effect that was comparable to that of the standard sulfasalazine, especially at the highest dose level. Colonic mucosal injury parallels with the histological and biochemical evaluations. CONCLUSIONS Results showed a valuable effect of ginger extract against acetic acid-induced ulcerative colitis possibly by its antioxidant and anti-inflammatory properties.
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Affiliation(s)
- Hanan S El-Abhar
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
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Abstract
Oxidative stress is defined as an imbalance between generation of reactive oxygen species (ROS) and decreased antioxidant defense systems. Oxidative stress develops particularly in inflammatory reactions because the inflammatory cells, neutrophils, and macrophages produce large amounts of ROS. It has been known for a long time that oxidative stress in inflamed tissue can pave the way for malignant tumors, and that it is a major pathogenetic factor for the well-established correlation between inflammatory diseases and cancer. Oxidative stress has long been associated with the pathogenesis of chronic inflammatory bowel disease (IBD)-related colorectal cancer. This article provides an overview of the pathology of ROS and presents recent advances concerning the role of ROS in IBD-related colorectal carcinogenesis (Fig. 1).
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