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Jeevanandam J, Paramasivam E, Palanisamy A, Ragavendran S, Thangavel SN. Molecular insights on bioactive compounds againstCovid-19: A Network pharmacological and computational study. Curr Comput Aided Drug Des 2022; 18:CAD-EPUB-126303. [PMID: 36111763 DOI: 10.2174/1573409918666220914092145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/04/2022] [Accepted: 07/20/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Network pharmacology based identification of phytochemicals in the form of cocktails against off-targets can play a significant role in inhibition of SARS_CoV2 viral entry and its propagation. This study includes network pharmacology, virtual screening, docking and molecular dynamics to investigate the distinct antiviral mechanisms of effective phytochemicals against SARS_CoV2. METHODS SARS_CoV2 human-protein interaction network was explored from the BioGRID database and analysed using Cytoscape. Further analysis was performed to explore biological function, protein-phytochemical/drugs network and up-down regulation of pathological host target proteins. This lead to understand the antiviral mechanism of phytochemicals against SARS_CoV2. The network was explored through g:Profiler, EnrichR, CTD, SwissTarget, STITCH, DrugBank, BindingDB, STRING and SuperPred. Virtual screening of phytochemicals against potential antiviral targets such as M-Pro, NSP1, Receptor binding domain, RNA binding domain, and ACE2 discloses the effective interaction between them. Further, the binding energy calculations through simulation of the docked complex explains the efficiency and stability of the interactions. RESULTS The network analysis identified quercetin, genistein, luteolin, eugenol, berberine, isorhamnetin and cinnamaldehyde to be interacting with host proteins ACE2, DPP4, COMT, TUBGCP3, CENPF, BRD2 and HMOX1 which are involved in antiviral mechanisms such as viral entry, viral replication, host immune response, and antioxidant activity. Thus indicating that herbal cocktails can effectively tackle the viral hijacking of the crucial biological functions of human host. Further exploration through Virtual screening, docking and molecular dynamics recognizes the effective interaction of phytochemicals such as punicalagin, scutellarin, and solamargine with their respective potential targets. CONCLUSION This work illustrates probable strategy for identification of phytochemical based cocktails and off-targets which are effective against SARS_CoV 2.
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Affiliation(s)
- Jayanth Jeevanandam
- Molecular Biophysics lab, School of Chemical and Biotechnology, SASTRA Deemed to- be University, Thanjavur-613401, Tamilnadu, India
| | - Esackimuthu Paramasivam
- Molecular Biophysics lab, School of Chemical and Biotechnology, SASTRA Deemed to- be University, Thanjavur-613401, Tamilnadu, India
| | | | - Srikanth Ragavendran
- TATA-Realty Data science lab, School of Humanity and Science, SASTRA Deemed to-be University, Thanjavur-613401, Tamilnadu, India
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Suksatan W, Putera HD, Abdulkadhim AH, Hammid AT, Ismailov JA, Jannat B, Rezayat P, Izadi F. The effect of conjugated linoleic acid supplementation on oxidative stress markers: A systematic review and meta-analysis of randomized controlled trials. Clin Nutr ESPEN 2022; 49:121-128. [DOI: 10.1016/j.clnesp.2022.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/16/2022] [Accepted: 04/03/2022] [Indexed: 11/29/2022]
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Huang CC, Lin TC, Liu CH, Hu HC, Yu SY, Wu SJ, Yen MH, Tsai YH, Chang FR. Lipid Metabolism and its Mechanism Triggered by Supercritical CO 2 Extract of Adlay ( Coix lacryma-jobi var. ma-yuen (Rom. Caill.) Stapf) Bran in High-Fat Diet Induced Hyperlipidemic Hamsters. Front Pharmacol 2021; 12:785944. [PMID: 34867418 PMCID: PMC8635772 DOI: 10.3389/fphar.2021.785944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/01/2021] [Indexed: 11/25/2022] Open
Abstract
Adlay (Coix lacryma-jobi var. ma-yuen (Rom. Caill.) Stapf) seeds are edible crop classified as Traditional Chinese Medicine (TCM). Adlay bran (AB) is one of the wastes generated during adlay refining processes. In this work, supercritical fluid extract of AB (AB-SCF) was investigated to reveal its lipid regulating potential and decode its bifunctional ingredients. AB-SCF×0.5 (30.84 mg/kg/body weight), AB-SCF×1 (61.67 mg/kg/BW), AB-SCF×5 (308.35 mg/kg/BW) and AB-SCF×10 (616.70 mg/kg/BW) were administrated to high fat-diet (HFD) induced hyperglycemic hamsters for 8 weeks. The results indicates that AB-SCF displays a prevention of dramatic body weight gains, lower levels of serum TG, TC, LDL-C and higher in HDL-C, amelioration of cardiovascular risk, alleviation of hepatic TG, TC and lipid peroxidation, and enhancement on cholesterol metabolism with higher bile acid excretion. Investigations on energy metabolic mechanism demonstrates that the hyperlipidemia mitigating capacities of AB-SCF are up-regulated on lipoprotein lipase, AMPK, p-AMPK and down-regulated at fatty acid synthase. Major bio-functional lipid compositions are identified as linoleic acid (28.59%) and oleic acid (56.95%). Non-lipid chemical and active markers are confirmed as 3-O-(trans-4-feruloyl)-β-sitostanol (1463.42 ppm), 3-O-(cis-4-feruloyl)-β-sitostanol (162.60 ppm), and β-sitosterol (4117.72 ppm). These compositions might synergistically responsible for the mentioned activities and can be regarded as analytical targets in quality control. AB-SCF may be considered as a promising complementary supplement, and developed as a functional food or new botanical drug in the future.
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Affiliation(s)
- Chiao-Chih Huang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tzu-Ching Lin
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chiung-Hui Liu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hao-Chun Hu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Szu-Yin Yu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shu-Jing Wu
- Department of Nutritional Health, Chia-Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Ming-Hong Yen
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Hong Tsai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Pharmacy and Master Program, Collage of Pharmacy and Health Care, Tajen University, Pingtung County, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
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4
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Shan Z, Zhao Y, Qiu Z, Angxiu S, Gu Y, Luo J, Bi H, Luo W, Xiong R, Ma S, He Z, Chen L. Conjugated linoleic acid prompts bone formation in ovariectomized osteoporotic rats and weakens osteoclast formation after treatment with ultraviolet B. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:503. [PMID: 33850900 PMCID: PMC8039685 DOI: 10.21037/atm-21-934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Background Ultraviolet B (UVB) has been reported to prevent bone loss by promoting the synthesis of vitamin D. However, UVB can also enhance osteoclastic differentiation, inhibit osteogenic differentiation, and cause oxidative damage. The present study aimed to analyze the osteoprotective effects of UVB and conjugated linoleic acid (CLA) in rats with ovariectomy-induced osteoporosis, and to determine the interactions between UVB and CLA and their effects on bone mesenchymal stem cells (BMSCs) and bone marrow mononuclear cells (BMMCs). Methods In vitro, the distance of UVB irradiation and the dose of CLA were selected by immunofluorescence assays and Cytotoxicity assay. BMSCs and BMMCs were detected by immunohistochemical and immunofluorescence assays. In vivo, three-month-old female Sprague-Dawley rats that had undergone ovariectomy were treated with UVB and CLA. After 8 weeks of therapy, the femurs of the rats were examined by micro-computed tomography (CT) and immunohistochemical detection to assess the therapeutic efficacy. Results The least inhibitive UVB distance and dosage of CLA were selected for the in vivo experiments. CLA effectively weakened the osteogenic inhibitory effect of UVB (72 cm), significantly improved the activity of alkaline phosphatase (ALP), promoted the formation of mineralized nodules, and alleviated the oxidative damage induced by UVB. CLA also effectively weakened the osteoclast-promoting effect of UVB (72 cm), inhibited osteoclast formation, and inhibited the inflammatory damage to BMMCs caused by UVB (72 cm) irradiation. Micro-CT results showed that UVB irradiation could promote bone formation in ovariectomized Sprague-Dawley rats, while CLA could significantly promote bone regeneration. Immunofluorescence assays results showed that CLA alleviated UVB-induced oxidative damage to osteoblasts. The ROS detection results demonstrated that CLA effectively alleviated UVB-induced oxidative damage to BMSCs. Furthermore, Immunohistochemical assays showed that UVB and CLA treatment increased bone density, inhibited osteolytic osteolysis, and enhanced osteogenic activity. Conclusions CLA can effectively weaken osteoclast promotion, osteogenic inhibition, and oxidative damage caused by UVB. Combination treatment of UVB and CLA exerts an osteoprotective effect on ovariectomized osteoporotic rats and stimulates osteogenesis. The molecular mechanism of this interaction requires further investigation.
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Affiliation(s)
- Zhongshu Shan
- Department of Orthopedic Surgery, the 1st Affiliated Hospital of Soochow University, Suzhou, China.,Department of Orthopedic Surgery, People's Hospital of Qinghai Province, Xining, China
| | - Yanyan Zhao
- Department of Orthopedic Surgery, People's Hospital of Qinghai Province, Xining, China
| | - Zhixue Qiu
- Department of Orthopedic Surgery, People's Hospital of Qinghai Province, Xining, China
| | - Suonan Angxiu
- Department of Orthopedic Surgery, People's Hospital of Qinghai Province, Xining, China
| | - Yong Gu
- Department of Orthopedic Surgery, the 1st Affiliated Hospital of Soochow University, Suzhou, China
| | - Junming Luo
- Department of Pathology, People's Hospital of Qinghai Province, Xining, China
| | - Hongtao Bi
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Sciences; Xining, China
| | - Wei Luo
- Department of Endocrinology, People's Hospital of Qinghai Province, Xining, China
| | - Rui Xiong
- Nutrition Department, People's Hospital of Qinghai Province, Xining, China
| | - Siqing Ma
- Department of Critical Care Medicine, People's Hospital of Qinghai Province, Xining, China
| | - Zhao He
- Department of Orthopedic Surgery, People's Hospital of Qinghai Province, Xining, China
| | - Liang Chen
- Department of Orthopedic Surgery, the 1st Affiliated Hospital of Soochow University, Suzhou, China
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Rehman K, Haider K, Jabeen K, Akash MSH. Current perspectives of oleic acid: Regulation of molecular pathways in mitochondrial and endothelial functioning against insulin resistance and diabetes. Rev Endocr Metab Disord 2020; 21:631-643. [PMID: 32125563 DOI: 10.1007/s11154-020-09549-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Insulin resistance (IR) and type 2 diabetes mellitus (T2DM) is a leading cause of deaths due to metabolic disorders in recent years. Molecular mechanisms involved in the initiation and development of IR and T2DM are multiples. The major factors include mitochondrial dysfunction which may cause incomplete fatty acid oxidation (FAO). Oleic acid upregulates the expression of genes causing FAO by deacetylation of PGC1α by PKA-dependent activation of SIRT1-PGC1α complex. Another potent factor for the development of IR and T2DM is endothelial dysfunction as damaged endothelium causes increased release of inflammatory mediators such as TNF-α, IL-6, IL-1β, sVCAM, sICAM, E-selectin and other proinflammatory cytokines. While, on the other hand, oleic acid has the ability to regulate E-selectin, and sICAM expression. Rest of the risk factors may include inflammation, β-cell dysfunction, oxidative stress, hormonal imbalance, apoptosis, and enzyme dysregulation. Here, we have highlighted how oleic acid regulates underlying causatives factors and hence, keeps surpassing effect in prevention and treatment of IR and T2DM. However, the percentage contribution of these factors in combating IR and ultimately averting T2DM is still debatable. Thus, because of its exceptional protective effect, it can be considered as an improved therapeutic agent in prophylaxis and/or treatment of IR and T2DM.
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Affiliation(s)
- Kanwal Rehman
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan.
| | - Kamran Haider
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan
| | - Komal Jabeen
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan
- Institute of Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
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6
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Modulatory role of dietary polyunsaturated fatty acids in Nrf2-mediated redox homeostasis. Prog Lipid Res 2020; 80:101066. [DOI: 10.1016/j.plipres.2020.101066] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 02/07/2023]
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8
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Chen Y, Feng R, Yang X, Dai J, Huang M, Ji X, Li Y, Okekunle AP, Gao G, Onwuka JU, Pang X, Wang C, Li C, Li Y, Sun C. Yogurt improves insulin resistance and liver fat in obese women with nonalcoholic fatty liver disease and metabolic syndrome: a randomized controlled trial. Am J Clin Nutr 2019; 109:1611-1619. [PMID: 31136662 DOI: 10.1093/ajcn/nqy358] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 11/19/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Because consumption of conventional yogurt has beneficial effects in a healthy population, and insulin resistance (IR) is the mutual pathogenesis in nonalcoholic fatty liver disease (NAFLD) and metabolic syndrome (MetS), we hypothesized that yogurt would ameliorate IR in patients with NAFLD and MetS. OBJECTIVES The aim of this study was to investigate the effects of yogurt on IR and secondary endpoints including liver fat, gut microbiota, and serum biomarkers of inflammation and oxidative stress in obese women with NAFLD and MetS. METHODS One hundred obese women aged 36-66 y with both NAFLD and MetS were randomly assigned to consume 220 g/d of either conventional yogurt or milk for 24 wk. At baseline and week 24, we measured anthropometric indices, serum glucose, insulin, lipids, and cytokines in all participants, and liver fat and gut microbiota in 20 participants randomly selected from each group. RESULTS Forty-eight participants from the yogurt group and 44 from the milk group completed the intervention. Compared with milk, yogurt significantly decreased the homeostasis model assessment of insulin resistance (-0.53; 95% CI: -1.03, -0.02), fasting insulin (-2.77 mU/L; 95% CI: -4.91, -0.63 mU/L), 2-h insulin (-25.5 mU/L; 95% CI: -33.0, -17.9 mU/L), 2-h area under the curve for insulin (-29.4 mU/L · h; 95% CI: -44.0, -14.8 mU/L · h), alanine aminotransferase (-4.65 U/L; 95% CI: -8.67, -0.64 U/L), intrahepatic lipid (-3.44%; 95% CI: -6.19%, -0.68%), and hepatic fat fraction (-3.48%; 95% CI: -6.34%, -0.63%). Yogurt also decreased serum LPS (-0.31 EU/mL; 95% CI: -0.48, -0.14 EU/mL), fibroblast growth factor 21 (-57.76 pg/mL; 95% CI: -86.32, -29.19 pg/mL), lipids, and biomarkers of inflammation and oxidative stress, and altered gut microbiota composition. Mediation analysis showed that yogurt may improve IR by reducing serum lipids, inflammation, oxidative stress, and LPS. CONCLUSIONS Yogurt was better than milk at ameliorating IR and liver fat in obese Chinese women with NAFLD and MetS, possibly by improving lipid metabolism, reducing inflammation, oxidative stress, and LPS, and changing the gut microbiota composition. This trial was registered at www.chictr.org.cn as ChiCTR-IPR-15006801.
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Affiliation(s)
- Yang Chen
- Department of Nutrition and Food Hygiene
| | - Rennan Feng
- Department of Nutrition and Food Hygiene.,Training Center for Students Innovation and Entrepreneurship Education, Harbin Medical University, Harbin, China
| | - Xue Yang
- Department of Nutrition and Food Hygiene
| | - Jiaxing Dai
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Min Huang
- Department of Nutrition and Food Hygiene
| | | | - Yong Li
- Training Center for Students Innovation and Entrepreneurship Education, Harbin Medical University, Harbin, China
| | | | - Guanghui Gao
- Department of Physics and Chemistry, Food Inspection Institute, Liaoning Province, China
| | | | - Xiuyu Pang
- Department of Nutrition and Food Hygiene
| | - Cheng Wang
- Department of Environmental Hygiene, Public Health College, Harbin Medical University, Harbin, China
| | - Chunlong Li
- Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ying Li
- Department of Nutrition and Food Hygiene
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9
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Qi XL, Wang J, Yue HY, Wu SG, Zhang YN, Ni HM, Guo Y, Zhang HJ, Qi GH. Trans10, cis12-conjugated linoleic acid exhibits a stronger antioxidant capacity than cis9, trans11-conjugated linoleic acid in primary cultures of laying hen hepatocytes. Poult Sci 2018; 97:4415-4424. [DOI: 10.3382/ps/pey297] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 06/20/2018] [Indexed: 12/23/2022] Open
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10
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Barbosa MQ, Queiroga RDCRE, Bertozzo CCDMS, Araújo DFDS, Oliveira LIG, Silva JYP, Bomfim MAD, Guerra GCB, Costa S, Bessa R, Alves S, Barbosa Soares JK. Effect of diets with goat milk fat supplemented with exercise on anxiety and oxidative stress in the brains of adult rats. Food Funct 2018; 9:2891-2901. [DOI: 10.1039/c7fo01764b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Goat milk fat induced anxiolytic effect in sedentary animals; exercise promoted lipid peroxidation in the brain; exercise induced anxiety.
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11
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Lee SR, Khamoui AV, Jo E, Zourdos MC, Panton LB, Ormsbee MJ, Kim JS. Effect of conjugated linoleic acids and omega-3 fatty acids with or without resistance training on muscle mass in high-fat diet-fed middle-aged mice. Exp Physiol 2017; 102:1500-1512. [PMID: 28795443 DOI: 10.1113/ep086317] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 08/08/2017] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? This study examined the effects of 20 weeks of administration of conjugated linoleic acids/omega-3 fatty acids with or without programed resistance exercise training on body composition, skeletal muscle properties and functional capacity in middle-aged mice fed a high-fat diet. What is the main finding and its importance? Chronic daily administration of conjugated linoleic acids/omega-3 fatty acids with resistance exercise training can help to blunt fat gain, alleviate loss of myogenic capacity and sensorimotor function and lower tissue inflammation in middle-aged mice during chronic high-fat diet-induced catabolism. This study investigated the effects of 20 weeks of combined conjugated linoleic acid (CLA)/omega-3 fatty acid (n-3) administration independently or combined with resistance exercise training (RET) on skeletal muscle in middle-aged mice consuming a high-fat diet (HFD). Nine-month-old C57BL/6 mice were randomly assigned into four experimental groups (H, high-fat diet; HE, H + RET; HCN, H + CLA/n-3; and HECN, H + CLA/n3 + RET). Body composition and functional capacity were assessed pre- and post-intervention. Muscle tissues were collected at 14 months of age. ANOVA was used, with significance set at P ≤ 0.05. Fat mass significantly increased in H (+74%), HE (+142%) and HECN (+43%) but not in HCN. Muscle wet weights were significantly lower in H and HCN than in HE and HECN. Grip strength substantially declined in H (-15%) and HCN (-17%), whereas sensorimotor function significantly declined only in H (-11%). HECN exhibited improvement in strength (+22%) and sensorimotor coordination (+17%). In comparison to H, muscle tumour necrosis factor-α mRNA expression was significantly lower in HE (-39%), HCN (-24%) and HECN (-21%), respectively. Mean myofibre cross-sectional areas were markedly lower in H and HCN than in HE and HECN. H showed significantly lower satellite cell abundance and numbers of myonuclei than all other groups. Our findings suggest that long-term daily CLA/n-3 intake with resistance training improved sensorimotor function, ameliorated fat gain and prevented loss of myogenic capacity while lowering tumour necrosis factor-α expression during chronic HFD.
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Affiliation(s)
- Sang-Rok Lee
- Department of Kinesiology and Dance, New Mexico State University, Las Cruces, NM, USA.,Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA
| | - Andy V Khamoui
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA.,Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA.,Department of Exercise Science and Health Promotion, Florida Atlantic University, Boca Raton, FL, USA
| | - Edward Jo
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA.,Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA.,Department of Kinesiology and Health Promotion, California State Polytechnic University, Pomona, CA, USA
| | - Michael C Zourdos
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA.,Department of Exercise Science and Health Promotion, Florida Atlantic University, Boca Raton, FL, USA
| | - Lynn B Panton
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA.,Institute of Sports Sciences and Medicine, Florida State University, Tallahassee, FL, USA
| | - Michael J Ormsbee
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA.,Institute of Sports Sciences and Medicine, Florida State University, Tallahassee, FL, USA
| | - Jeong-Su Kim
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA.,Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL, USA.,Institute of Sports Sciences and Medicine, Florida State University, Tallahassee, FL, USA
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Aydın B, Atlı Şekeroğlu Z, Şekeroğlu V. Acrolein-induced oxidative stress and genotoxicity in rats: protective effects of whey protein and conjugated linoleic acid. Drug Chem Toxicol 2017; 41:225-231. [DOI: 10.1080/01480545.2017.1354872] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Birsen Aydın
- Department of Biology, Faculty of Science, Amasya University, Amasya, Turkey
| | - Zülal Atlı Şekeroğlu
- Department of Molecular Biology and Genetics, Faculty of Science, Ordu University, Ordu, Turkey
| | - Vedat Şekeroğlu
- Department of Molecular Biology and Genetics, Faculty of Science, Ordu University, Ordu, Turkey
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13
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Basiricò L, Morera P, Dipasquale D, Tröscher A, Bernabucci U. Comparison between conjugated linoleic acid and essential fatty acids in preventing oxidative stress in bovine mammary epithelial cells. J Dairy Sci 2017; 100:2299-2309. [PMID: 28088424 DOI: 10.3168/jds.2016-11729] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 11/19/2016] [Indexed: 01/01/2023]
Abstract
Some in vitro and in vivo studies have demonstrated protective effects of conjugated linoleic acid (CLA) isomers against oxidative stress and lipid peroxidation. However, only a few and conflicting studies have been conducted showing the antioxidant potential of essential fatty acids. The objectives of the study were to compare the effects of CLA to other essential fatty acids on the thiol redox status of bovine mammary epithelia cells (BME-UV1) and their protective role against oxidative damage on the mammary gland by an in vitro study. The BME-UV1 cells were treated with complete medium containing 50 μM of cis-9,trans-11 CLA, trans-10,cis-12 CLA, α-linolenic acid, γ-linolenic acid, and linoleic acid. To assess the cellular antioxidant response, glutathione, NADPH, and γ-glutamyl-cysteine ligase activity were measured 48 h after addition of fatty acids (FA). Intracellular reactive oxygen species and malondialdehyde production were also assessed in cells supplemented with FA. Reactive oxygen species production after 3 h of H2O2 exposure was assessed to evaluate and to compare the potential protection of different FA against H2O2-induced oxidative stress. All FA treatments induced an intracellular GSH increase, matched by high concentrations of NADPH and an increase of γ-glutamyl-cysteine ligase activity. Cells supplemented with FA showed a reduction in intracellular malondialdehyde levels. In particular, CLA isomers and linoleic acid supplementation showed a better antioxidant cellular response against oxidative damage induced by H2O2 compared with other FA.
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Affiliation(s)
- L Basiricò
- Dipartimento di Scienze e Agrarie e Forestali (DAFNE), Università degli Studi della Tuscia, via S. Camillo De Lellis, s.n.c, 01100 Viterbo, Italy
| | - P Morera
- Dipartimento di Scienze e Agrarie e Forestali (DAFNE), Università degli Studi della Tuscia, via S. Camillo De Lellis, s.n.c, 01100 Viterbo, Italy
| | - D Dipasquale
- Dipartimento di Scienze e Agrarie e Forestali (DAFNE), Università degli Studi della Tuscia, via S. Camillo De Lellis, s.n.c, 01100 Viterbo, Italy
| | | | - U Bernabucci
- Dipartimento di Scienze e Agrarie e Forestali (DAFNE), Università degli Studi della Tuscia, via S. Camillo De Lellis, s.n.c, 01100 Viterbo, Italy.
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14
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Jabłońska-Trypuć A, Pankiewicz W, Czerpak R. Traumatic Acid Reduces Oxidative Stress and Enhances Collagen Biosynthesis in Cultured Human Skin Fibroblasts. Lipids 2016; 51:1021-35. [PMID: 27423205 PMCID: PMC5009161 DOI: 10.1007/s11745-016-4174-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 07/04/2016] [Indexed: 12/16/2022]
Abstract
Traumatic acid (TA) is a plant hormone (cytokinin) that in terms of chemical structure belongs to the group of fatty acids derivatives. It was isolated from Phaseolus vulgaris. TA activity and its influence on human cells and organism has not previously been the subject of research. The aim of this study was to examine the effects of TA on collagen content and basic oxidative stress parameters, such as antioxidative enzyme activity, reduced glutathione, thiol group content, and lipid peroxidation in physiological conditions. The results show a stimulatory effect of TA on tested parameters. TA caused a decrease in membrane phospholipid peroxidation and exhibited protective properties against ROS production. It also increases protein and collagen biosynthesis and its secretion into the culture medium. The present findings reveal that TA exhibits multiple and complex activity in fibroblast cells in vitro. TA, with its activity similar to unsaturated fatty acids, shows antioxidant and stimulatory effects on collagen biosynthesis. It is a potentially powerful agent with applications in the treatment of many skin diseases connected with oxidative stress and collagen biosynthesis disorders.
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Affiliation(s)
- Agata Jabłońska-Trypuć
- Faculty of Civil and Environmental Engineering, Division of Sanitary Biology and Biotechnology, Bialystok University of Technology, Wiejska Street 45E, 15-351, Białystok, Poland.
| | - Walentyn Pankiewicz
- University of Medical Science in Białystok, Krakowska Street 9, 15-875, Białystok, Poland
| | - Romuald Czerpak
- University of Medical Science in Białystok, Krakowska Street 9, 15-875, Białystok, Poland
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Basiricò L, Morera P, Dipasquale D, Tröscher A, Serra A, Mele M, Bernabucci U. Conjugated linoleic acid isomers strongly improve the redox status of bovine mammary epithelial cells (BME-UV1). J Dairy Sci 2015; 98:7071-82. [PMID: 26277317 DOI: 10.3168/jds.2015-9787] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 06/18/2015] [Indexed: 12/31/2022]
Abstract
Some studies have shown the protective effects of conjugated linoleic acid (CLA) isomers against oxidative stress and lipid peroxidation in animal models, but no information is available about CLA and changes in oxidative status of the bovine mammary gland. The objectives of the study were to assess in vitro the effect of CLA on the cellular antioxidant response of bovine mammary cells, to examine whether CLA isomers could play a role in cell protection against the oxidative stress, and to study the molecular mechanism involved. For the study, BME-UV1 cells, a bovine mammary epithelial cell line, were used as the experimental model. The BME-UV1 cells were treated with complete medium containing 50 µM cis-9,trans-11 CLA (c9,t11 CLA), trans-10,cis-12 CLA (t10,c12 CLA), and CLA mixture (1:1, cis-9,trans-11: trans-10,cis-12 CLA). To monitor cellular uptake of CLA isomers, cells and culture medium were collected at 0, 3, and 48 h from CLA addition for lipid extraction and fatty acid analyses. To assess the cellular antioxidant response, glutathione (GSH/GSSH), NADPH, and γ-glutamyl-cysteine ligase activity was measured after 48 h from addition of CLA. Cytoplasmic superoxide dismutase, glutathione peroxidase, glutathione S-transferase, and glutathione reductase activities and mRNA were also determined. Intracellular reactive oxygen species and thiobarbituric acid reactive substance production were assessed in cells supplemented with CLA isomers. Cell viability after 3h to H2O2 exposure was assessed to evaluate and to compare the potential protection of different CLA isomers against H2O2-induced oxidative stress. Mammary cells readily picked up all CLA isomers, their accumulation was time dependent, and main metabolites at 48 h are two 18:3 isomers. The CLA treatment induced an intracellular GSH increase, matched by high concentration of NADPH, and an increase of γ-glutamyl-cysteine ligase activity mainly in cells treated with the t10,c12 CLA isomer. The CLA isomer treatment of bovine mammary cells increased superoxide dismutase, glutathione peroxidase, and glutathione S-transferase activity and decreased glutathione reductase activity, but no changes in gene expression of these antioxidant enzymes were observed. Cells supplemented with CLA isomers showed a reduction in intracellular reactive oxygen species and thiobarbituric acid reactive substance levels. All CLA isomers were able to enhance cell resistance against H2O2-induced oxidative stress. These suggest an antioxidant role of CLA, in particular of t10,c12 CLA, by developing a significantly high redox status in cells.
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Affiliation(s)
- L Basiricò
- Dipartimento di scienze e tecnologie per l'Agricoltura, le Foreste, la Natura e l'Energia, Università degli Studi della Tuscia, 01100, Viterbo, Italy
| | - P Morera
- Dipartimento di scienze e tecnologie per l'Agricoltura, le Foreste, la Natura e l'Energia, Università degli Studi della Tuscia, 01100, Viterbo, Italy
| | - D Dipasquale
- Dipartimento di scienze e tecnologie per l'Agricoltura, le Foreste, la Natura e l'Energia, Università degli Studi della Tuscia, 01100, Viterbo, Italy
| | | | - A Serra
- Dipartimento di Scienze Agrarie, Alimentari e Agro-ambientali, Università di Pisa, 56126, Pisa, Italy
| | - M Mele
- Dipartimento di Scienze Agrarie, Alimentari e Agro-ambientali, Università di Pisa, 56126, Pisa, Italy
| | - U Bernabucci
- Dipartimento di scienze e tecnologie per l'Agricoltura, le Foreste, la Natura e l'Energia, Università degli Studi della Tuscia, 01100, Viterbo, Italy.
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16
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Malinska H, Hüttl M, Oliyarnyk O, Bratova M, Kazdova L. Conjugated linoleic acid reduces visceral and ectopic lipid accumulation and insulin resistance in chronic severe hypertriacylglycerolemia. Nutrition 2015; 31:1045-51. [PMID: 26059381 DOI: 10.1016/j.nut.2015.03.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 02/25/2015] [Accepted: 03/12/2015] [Indexed: 01/16/2023]
Abstract
OBJECTIVE The metabolic health effects of conjugated linoleic acid (CLA), which is one of the principal polyunsaturated fatty acids, are controversial and still not fully accepted. The aim of this study was to examine the effects of CLA on adiposity, ectopic lipid accumulation, and insulin-resistant states in a metabolic syndrome model of non-obese hereditary rats with hypertriacylglycerolmia (HHTg). METHODS Groups of adult male HHTg rats were fed a high-carbohydrate diet (70% sucrose) with a 2% mixture of CLA isomers, or with the same amount of sunflower oil (control group) for 2 mo. RESULTS CLA supplementation decreased body weight gain (P < 0.05) and visceral adipose tissue weight (P < 0.01), and distinctively reduced serum triacylglycerols (P < 0.01) and triacylglycerol accumulation in the liver, heart, muscle, and aorta. CLA-treated rats exhibited increased insulin sensitivity in the adipose (P < 0.01), a higher release of fatty acids (P < 0.001), and increased adiponectin secretion (P < 0.01).In the skeletal muscle, CLA supplementation was associated with increased glucose oxidation (P < 0.01) and an elevated anti-inflammatory index (P < 0.05), according to phospholipid fatty acid composition. In the liver, CLA reduced the oxidized form of glutathione and elevated the activity of glutathione-dependent antioxidant enzymes. CONCLUSION Results suggest that CLA supplementation may protect against HHTg-induced dyslipidemia, ectopic lipid deposition, and insulin resistance. Increased glucose oxidation in the skeletal muscle as well as adiponectin secretion may play a role in the mechanism of the CLA action. Results suggest that CLA could reduce the negative consequences of HHTg and metabolic syndrome.
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Affiliation(s)
- Hana Malinska
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
| | - Martina Hüttl
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Olena Oliyarnyk
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Miriam Bratova
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Ludmila Kazdova
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
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Lipinska AP, D’hondt S, Van Damme EJM, De Clerck O. Uncovering the genetic basis for early isogamete differentiation: a case study of Ectocarpus siliculosus. BMC Genomics 2013; 14:909. [PMID: 24359479 PMCID: PMC3879662 DOI: 10.1186/1471-2164-14-909] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 12/17/2013] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND The phenomenon of sexual reproduction characterizes nearly all eukaryotes, with anisogamy being the most prevalent form of gamete discrimination. Since dimorphic gametes most likely descend from equal-sized specialized germ cells, identifying the genetic bases of the early functional diversification in isogametes can provide better understanding of the evolution of sexual dimorphism. However, despite the potential importance to the evolutionary biology field, no comprehensive survey of the transcriptome profiling in isomorphic gametes has been reported hitherto. RESULTS Gamete differentiation on the genomic level was investigated using Ectocarpus siliculosus, a model organism for brown algal lineage which displays an isogamous sexual reproduction cycle. Transcriptome libraries of male and female gametes were generated using Next Generation Sequencing technology (SOLiD) and analyzed to identify differentially regulated genes and pathways with potential roles in fertilization and gamete specialization. Gamete transcriptomes showed a high level of complexity with a large portion of gender specific gene expression. Our results indicate that over 4,000 of expressed genes are differentially regulated between male and female, including sequences related to cell movement, carbohydrate and lipid metabolism, signaling, transport and RNA processing. CONCLUSIONS This first comprehensive transcriptomic study of protist isogametes describes considerable adaptation to distinct sexual roles, suggesting that functional anisogamy precedes morphological differentiation. Several sex-biased genes and pathways with a putative role in reproduction were identified, providing the basis for more detailed investigations of the mechanisms underlying evolution of mating types and sexual dimorphism.
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Affiliation(s)
- Agnieszka P Lipinska
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281, Building S8, 9000 Ghent, Belgium
| | - Sofie D’hondt
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281, Building S8, 9000 Ghent, Belgium
| | - Els JM Van Damme
- Department of Molecular Biotechnology, Laboratory of Biochemistry and Glycobiology, Ghent University, Coupure Links 653, 9000 Gent, Belgium
| | - Olivier De Clerck
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281, Building S8, 9000 Ghent, Belgium
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18
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Jia B, Wu G, Fu X, Mo X, Du M, Hou Y, Zhu S. trans
-10, cis
-12 conjugated linoleic acid enhances in vitro maturation of porcine oocytes. Mol Reprod Dev 2013; 81:20-30. [DOI: 10.1002/mrd.22273] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 10/19/2013] [Indexed: 12/31/2022]
Affiliation(s)
- Baoyu Jia
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology; China Agricultural University; Beijing People's Republic of China
| | - Guoquan Wu
- Yunnan Animal Science and Veterinary Institute; Kunming Yunnan People's Republic of China
| | - Xiangwei Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology; China Agricultural University; Beijing People's Republic of China
| | - Xianhong Mo
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences; China Agricultural University; Beijing People's Republic of China
| | - Ming Du
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology; China Agricultural University; Beijing People's Republic of China
| | - Yunpeng Hou
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences; China Agricultural University; Beijing People's Republic of China
| | - Shien Zhu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology; China Agricultural University; Beijing People's Republic of China
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Adduct of malondialdehyde to hemoglobin: a new marker of oxidative stress that is associated with significant morbidity in preterm infants. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:901253. [PMID: 23738045 PMCID: PMC3655681 DOI: 10.1155/2013/901253] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 03/28/2013] [Accepted: 03/29/2013] [Indexed: 11/18/2022]
Abstract
Preterm infants (PT) are particularly exposed to oxidative stress (OS), and a blood-sparing marker, the malondialdehyde adduct to hemoglobin (MDA-Hb), may be useful to accurately assess OS-related neonatal morbidity.
In a prospective study, MDA-Hb concentrations were assessed in two groups of PT, one with and one without severe neonatal morbidity as estimated by a composite index of severe morbidity (ISM). All PT born in a single tertiary care NICU (<32 weeks and birth weight <1500 g) were consecutively included. MDA-Hb and blood glutathione (GSH) concentrations were measured by liquid chromatography-mass spectrometry during the first 6 weeks of life. Linear regressions and a multilevel model were fitted to study the relationship between MDA-Hb or GSH and ISM. Of the 83 PT (mean ± SD: 28.3 ± 2 weeks, 1089 ± 288 g), 21% presented severe neonatal morbidity. In the multivariate model, MDA-Hb concentrations were significantly higher in the ISM+ group than in the ISM– group during the first 6 weeks of life (P = 0.009). No significant difference in GSH concentrations was observed between groups (P = 0.180). MDA-Hb is a marker of interest for estimating oxidative stress in PT and could be useful to evaluate the impact of strategies to improve perinatal outcomes.
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Wasim Khan M, Arivarasu NA, Priyamvada S, Khan SA, Khan S, Yusufi ANK. Protective effect of ω-3 polyunsaturated fatty acids (PUFA) on sodium nitrite induced nephrotoxicity and oxidative damage in rat kidney. J Funct Foods 2013. [DOI: 10.1016/j.jff.2013.02.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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21
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Nakamura YK, Dubick MA, Omaye ST. Modulation of oxidative stress by γ-glutamylcysteine (GGC) and conjugated linoleic acid (CLA) isomer mixture in human umbilical vein endothelial cells. Food Chem Toxicol 2012; 50:1854-9. [PMID: 22490668 DOI: 10.1016/j.fct.2012.03.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Revised: 03/20/2012] [Accepted: 03/22/2012] [Indexed: 12/24/2022]
Abstract
Individually, γ-glutamylcysteine (GGC), a dipeptide and precursor of glutathione (GSH), and conjugated linoleic acid (CLA), a trans-fatty acid, exhibit antioxidant properties. The objective of this study was to compare effects of co-administration of GGC and CLA to treatment with GGC alone on oxidative stress and GSH synthesis in human endothelial cells. Changes in levels of 8-epi-PGF2α, thiobarbituric acid reactive substances (TBARS), GSH, total antioxidants, GSH synthetase (GSS) expression, and transcription factor DNA binding were assessed in human umbilical vein endothelial cells (HUVEC) treated with GGC alone (100 μmol/L) or combined with CLA isomer mixture (10, 50, 100 μmol/L) for 24h. Significantly higher levels of TBARS, 8-epi-PGF2α, GSH, and GSS protein were found in cells treated with GGC and 10 μmol/L CLA, compared to cells treated with GGC alone, indicative of prooxidant effects of CLA. Approximately 40% cell death was microscopically observed in cells incubated with GGC and 100 μmol/L CLA. Despite lower levels of GSH, treatment with GGC and 50 μmol/L CLA appeared to be protective from oxidative stress similar to treatment with GGC alone, as indicated by lower levels of TBARS, compared to control cells not treated with GGC and CLA.
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Affiliation(s)
- Yukiko K Nakamura
- Department of Nutrition, University of Nevada Reno, Reno, NV 89557, USA
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22
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Nakamura YK, Dubick MA, Omaye ST. γ-Glutamylcysteine inhibits oxidative stress in human endothelial cells. Life Sci 2012; 90:116-21. [DOI: 10.1016/j.lfs.2011.10.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 10/03/2011] [Accepted: 10/16/2011] [Indexed: 01/28/2023]
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23
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Jalabert A, Grand A, Steghens JP, Barbotte E, Pigue C, Picaud JC. Lipid peroxidation in all-in-one admixtures for preterm neonates: impact of amount of lipid, type of lipid emulsion and delivery condition. Acta Paediatr 2011; 100:1200-5. [PMID: 21418099 DOI: 10.1111/j.1651-2227.2011.02269.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AIM To evaluate the effect of lipid emulsion composition and delivery condition on lipid peroxidation in typical all-in-one parenteral admixtures for preterm neonates. METHODS Malonedialdehyde (MDA) concentrations were assessed in different all-in-one admixtures. We evaluated the effects of fat blend (three lipid emulsions) and the amount of lipids, as well as the effects of protecting bags and/or tubing from ambient light and storage for 72 h. MDA was measured by liquid chromatography/mass spectrometry. RESULTS Three hundred and sixty samples were collected from 114 admixtures. Neither the type of lipid (p = 0.43) nor the interaction between light and type of lipid (p = 0.49) had any influence on final MDA concentrations, but the increase in MDA concentration at 24 h (T(24)) was related to light exposure (p < 0.001). The increase in MDA concentration was related to the increase in lipid amount in the admixture at T(0) (r = 0.77) and T(24) (r = 0.86). MDA concentrations in solutions stored for 72 h showed no significant increase, with no difference between the three lipid emulsions (p = 0.69). CONCLUSION All-in-one admixtures may be interesting for the parenteral nutrition of preterm neonates. Protection from light and restricting the amount of lipid to what is required for appropriate energy provision are essential to limit lipid peroxidation.
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Affiliation(s)
- Anne Jalabert
- Department of Pharmacy, CHU de Montpellier, Hôpital Lapeyronie, Montpellier, France
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24
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Grand A, Jalabert A, Mercier G, Florent M, Hansel-Esteller S, Cambonie G, Steghens JP, Picaud JC. Influence of Vitamins, Trace Elements, and Iron on Lipid Peroxidation Reactions in All-in-One Admixtures for Neonatal Parenteral Nutrition. JPEN J Parenter Enteral Nutr 2011; 35:505-10. [DOI: 10.1177/0148607110381768] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Anaïs Grand
- CHU Montpellier, Pharmacie, Hopital Lapeyronie, Montpellier, France
| | - Anne Jalabert
- CHU Montpellier, Pharmacie, Hopital Lapeyronie, Montpellier, France
| | - Grégoire Mercier
- CHU Montpellier, Departement d’information médicale, Hopital Arnaud de Villeneuve, Montpellier, France
| | | | | | - Gilles Cambonie
- CHU Montpellier, Neonatologie (Pédiatrie 2), Hopital Arnaud de Villeneuve, Montpellier, France
| | | | - Jean-Charles Picaud
- CHU de Lyon, Neonatologie, Hopital de la Croix-Rousse, Universite Claude Bernard Lyon 1, Centre de Recherche en Nutrition Humaine Rhone-Alpes, Lyon, France
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25
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Kumaravel M, Karthiga K, Raviteja V, Rukkumani R. Protective effects ofSesbania grandifloraon kidney during alcohol and polyunsaturated fatty acid-induced oxidative stress. Toxicol Mech Methods 2011; 21:418-25. [DOI: 10.3109/15376516.2010.550015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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26
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Walters JM, Hackett TB, Ogilvie GK, Fettman MJ. Polyunsaturated Fatty Acid dietary supplementation induces lipid peroxidation in normal dogs. Vet Med Int 2010; 2010:619083. [PMID: 20613960 PMCID: PMC2896855 DOI: 10.4061/2010/619083] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2010] [Accepted: 05/11/2010] [Indexed: 12/05/2022] Open
Abstract
Polyunsaturated fatty acids (PUFAs) have anti-inflammatory effects at low concentrations; however increased dietary consumption may conversely increase susceptibility to oxidation by free radicals. The objective of this study was to determine the effects of PUFAs on selective oxidative injury and inflammatory biomarkers in canine urine and serum. Dogs (n = 54) consumed a diet supplemented with 0.5% conjugated linoleic acid/dry matter, 1.0% conjugated linoleic acid/dry matter, or 200 mg/kg docosahexaenoic acid/eicosapentaenoic acid for 21 days. All dogs exhibited significantly increased plasma PUFA concentrations. All dogs had significant elevations in urinary F2a isoprostane concentration, though dogs consuming a diet containing 1.0% conjugated linoleic acid/dry matter had the highest increase (P = .0052). Reduced glutathione concentrations within erythrocytes decreased significantly in all three dietary treatment groups (P = .0108). Treatment with diets containing 1.0% conjugated linoleic acid/dry matter resulted in the greatest increase in oxidant injury. Caution should be exercised when supplementing PUFAs as some types may increase oxidation.
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Affiliation(s)
- John M Walters
- Department of Clinical Sciences, Colorado State University, 300 West Drake Road, Fort Collins, CO 80523, USA
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27
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Schweikert K, Gafner F, Dell’Acqua G. A bioactive complex to protect proteins from UV-induced oxidation in human epidermis. Int J Cosmet Sci 2010; 32:29-34. [DOI: 10.1111/j.1468-2494.2009.00528.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Conjugated linoleic acid isomers' roles in the regulation of PPAR-γ and NF-κB DNA binding and subsequent expression of antioxidant enzymes in human umbilical vein endothelial cells. Nutrition 2009; 25:800-11. [DOI: 10.1016/j.nut.2009.01.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2008] [Revised: 01/05/2009] [Accepted: 01/06/2009] [Indexed: 02/07/2023]
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30
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Rahman M, Halade GV, El Jamali A, Fernandes G. Conjugated linoleic acid (CLA) prevents age-associated skeletal muscle loss. Biochem Biophys Res Commun 2009; 383:513-8. [PMID: 19393220 DOI: 10.1016/j.bbrc.2009.04.071] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2009] [Accepted: 04/17/2009] [Indexed: 01/01/2023]
Abstract
In this study, we examined the effect of CLA isomers in preventing age-associated muscle loss and the mechanisms underlying this effect, using 12-months-old C57BL/6 mice fed 10% corn oil (CO) or a diet supplemented with 0.5% c9t11-CLA, t10c12-CLA, or c9t11-CLA+t10c12-CLA (CLA-mix) for 6months. Both t10c12-CLA and CLA-mix groups showed significantly higher muscle mass, as compared to CO and c9t11-CLA groups, measured by dual-energy X-ray absorptiometry and muscle wet weight. Enhanced mitochondrial ATP production, with higher membrane potential, and elevated muscle antioxidant enzymes (catalase and glutathione peroxidase) production, accompanied by slight increase in H(2)O(2) production was noted in t10c12-CLA and CLA-mix groups, as compared to that of CO and c9t11-CLA groups. Oxidative stress, as measured by serum malondialdehyde and inflammation, as measured by LPS-treated splenocyte IL-6 and TNF-alpha, were significantly less in CLA isomers groups. Thus, CLA may be a novel dietary supplement that will prevent sarcopenia by maintaining redox balance during aging.
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Affiliation(s)
- M Rahman
- Department of Medicine, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, TX 78229-3900, USA
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Ignace S, Fouque D, Arkouche W, Steghens JP, Guebre-Egziabher F. Preserved residual renal function is associated with lower oxidative stress in peritoneal dialysis patients. Nephrol Dial Transplant 2009; 24:1685-9. [PMID: 19276104 DOI: 10.1093/ndt/gfp077] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Residual renal function (RRF) correlates with survival in peritoneal dialysis (PD). We investigated the association between oxidative stress and RRF in PD. METHODS Adequacy of dialysis, total and free malondialdehydes (MDA), and lipid hydroperoxides (LHP) were obtained from 23 stable PD patients. RESULTS Free MDA level decreased with total weekly Kt/V urea (r = -0.51, P = 0.013) and urinary Kt/V (KRU) (r = -0.53, P = 0.009), but not with peritoneal Kt/V. Similar results were found with LHP level. In multivariate analysis, total weekly Kt/V urea and KRU remained associated with free MDA and LHP, independently of gender, nutritional or inflammatory status, and peritoneal permeability. CONCLUSION A preserved RRF is associated with lower serum levels of lipid peroxidation products among PD patients.
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Affiliation(s)
- Sophie Ignace
- Hospices Civils de Lyon, Department of Nephrology and Hypertension, Edouard Herriot Hospital, 5, Place d'Arsonval, 69 347 Lyon Cedex 03, France.
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Santos-Zago LF, Botelho AP, Oliveira ACD. Suplementação com ácido linoléico conjugado: estabilidade oxidativa dos suplementos e correlações com conteúdo dos lípides totais hepáticos e indicadores da oxidação dos lípides biológicos de ratos Wistar. REV NUTR 2009. [DOI: 10.1590/s1415-52732009000100004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJETIVO:O objetivo do trabalho foi avaliar a estabilidade oxidativa de misturas comerciais de ácido linoléico conjugado e buscar possível correlação entre a suplementação e o conteúdo total de lípides hepáticos, e também de alguns indicadores da oxidação lipídica em ratos. MÉTODOS:Um ensaio biológico com 30 ratos divididos em três grupos (n=10) caracterizando os grupos controle e suplementados com as misturas comerciais AdvantEdge® e One® foi realizado. A concentração administrada foi de 2% em relação ao consumo de dieta e os animais foram suplementados durante 42 dias. O conteúdo total de lípides do fígado foi determinado e a morfologia do órgão foi examinada por meio de microscopia ótica. Índice de peróxido e malondialdeído foram determinados para avaliar a estabilidade oxidativa dos suplementos in vitro. Índice de peróxido, malondialdeído, 8-iso-PGF2α isoprostana e catalase foram determinados como indicadores da oxidação dos lípides biológicos. RESULTADOS: Os resultados demonstraram baixa estabilidade das misturas comerciais à oxidação in vitro. As associações entre o consumo de ácido linoléico conjugado e malondialdeído (r=-0,7914, p<0,0001) e catalase (r=-0,5991, p=0,008) foram moderadas, negativas e significantes, demonstrando que o ácido linoléico conjugado reduziu a oxidação lipídica in vivo. O conteúdo dos lípides totais hepáticos não aumentou (22,42%, DP=1,40%) e a morfologia do órgão permaneceu íntegra. CONCLUSÃO:Embora esse protocolo de suplementação com ácido linoléico conjugado tenha reduzido a oxidação lipídica, há que considerar a tendência para o aumento de 8-iso-PGF2α isoprostana e de peróxidos como perspectiva de continuidade das pesquisas sobre a reinvestigação do efeito antioxidante do ácido linoléico conjugado.
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Andreoli MF, Gonzalez MA, Martinelli MI, Mocchiutti NO, Bernal CA. Effects of dietary conjugated linoleic acid at high-fat levels on triacylglycerol regulation in mice. Nutrition 2008; 25:445-52. [PMID: 19091510 DOI: 10.1016/j.nut.2008.10.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2008] [Revised: 10/01/2008] [Accepted: 10/06/2008] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Our aim was to investigate the effects of dietary conjugated linoleic acid (CLA) at high-fat (HF) levels on parameters related to triacylglycerol (TG) regulation and some potential impacts on liver damage. METHODS Growing mice were fed a control diet (7% corn oil), an HF diet containing 20% corn oil, or an HF diet containing 3% CLA (HF + CLA) for 30 d. Tissue and organ weights, plasma and tissue TG levels, and parameters related to their regulation were evaluated. Liver oxidative status was also assessed. RESULTS Dietary CLA showed detrimental and beneficial effects. CLA added to the HF diet caused hepatomegaly (+32%) and exacerbated the hepatic TG accumulation (+168%) observed with the HF diet without inducing liver damage; however, it significantly reduced plasma TG concentrations (-37%) and normalized muscular TG content. An increase in glutathione was associated with total normalization of liver lipid peroxidation. In addition, HF + CLA caused dystrophy of epididymal fat pads, even when the HF diet had increased the adipose tissue mass (30%). The biochemical mechanisms involved in the regulation of lipid levels were related to reduced (-20%) hepatic very low-density lipoprotein-TG secretion and decreased muscle (-35%) and adipose (-49%) tissue contributions to the removal of plasma TG by lipoprotein lipase enzymes. CONCLUSION Examination of CLA at HF levels showed hepatomegaly and exacerbation of lipid accretion as a negative impact; however, some positive aspects such as hypotriglyceridemia and protection against oxidative stress were also induced. Even the fat reduction is nutritionally important for weight control; the biochemical mechanisms whereby CLA mediates the potential effects could produce undesirable metabolic alterations.
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Affiliation(s)
- María F Andreoli
- Departamento de Ciencias Biológicas, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
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Molecular insights into quorum sensing in Acidithiobacillus ferrooxidans bacteria via molecular modelling of the transcriptional regulator AfeR and of the binding mode of long-chain acyl homoserine lactones. J Mol Model 2008; 14:599-606. [DOI: 10.1007/s00894-008-0315-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Accepted: 04/11/2008] [Indexed: 10/22/2022]
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Santos-Zago LF, Botelho AP, Oliveira ACD. Os efeitos do ácido linoléico conjugado no metabolismo animal: avanço das pesquisas e perspectivas para o futuro. REV NUTR 2008. [DOI: 10.1590/s1415-52732008000200008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Realizou-se uma revisão sistemática, sem restrição de data, sobre os efeitos fisiológicos do ácido linoléico conjugado sobre a regressão da carcinogênese, o estresse oxidativo, o metabolismo de lípides e glicose e a alteração da composição corporal. Objetivando estabelecer o aspecto histórico do avanço da pesquisa em ácido linoléico conjugado, consideraram-se artigos originais resultantes de trabalhos realizados com animais, com cultura de células e com humanos. Quanto às pesquisas sobre o efeito anticarcinogênico do ácido linoléico conjugado foram encontradas inúmeras evidências a esse respeito, especialmente na regressão dos tumores mamários e de cólon, induzida por ambos os isômeros os quais agem de maneiras distintas. Os pesquisadores se empenham em reinvestigar as propriedades antioxidantes do ácido linoléico conjugado. Embora tenham sido investigadas as propriedades antioxidantes, tem-se identificado efeito pró-oxidante, levando ao estresse oxidativo em humanos. Foram poucos os estudos que demonstraram efeito positivo significativo do ácido linoléico conjugado sobre o metabolismo dos lípides e da glicose e sobre a redução da gordura corporal, especialmente em humanos. Estudos sobre efeitos adversos foram também identificados. Há fortes indícios de que a ação deste ácido graxo conjugado sobre uma classe de fatores de transcrição - os receptores ativados por proliferadores de peroxissomo - e sobre a conseqüente modulação da expressão gênica, possa ser a explicação fundamental dos efeitos fisiológicos. Embora incipientes, os mais recentes estudos reforçam o conceito da nutrigenômica, ou seja, a modulação da expressão gênica induzida por compostos presentes na alimentação humana. O cenário atual estimula a comunidade científica a buscar um consenso sobre os efeitos do ácido linoléico conjugado em humanos, já que este está presente naturalmente em alguns alimentos, que, quando consumidos em quantidades adequadas e de forma freqüente, poderiam atuar como coadjuvantes na prevenção e no controle de inúmeras doenças crônicas.
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Rossary A, Arab K, Steghens JP. Polyunsaturated fatty acids modulate NOX 4 anion superoxide production in human fibroblasts. Biochem J 2007; 406:77-83. [PMID: 17472580 PMCID: PMC1948982 DOI: 10.1042/bj20061009] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The strong ROS (reactive oxygen species) production, part of an antioxidant response of human fibroblasts triggered by DHA (docosahexaenoic acid; C(22:6,n-3), served as a model for deciphering the relative contribution of NOX (NADPH oxidase) to ROS production, as the role of this enzymatic system remains controversial. Using hydroxyethidium fluorescence for fibroblast ROS production, RT (reverse transcriptase)-PCR for NOX 4 mRNA quantification and mRNA silencing, we show that ROS production evolves in parallel with the catalytic activity of NOX and is suppressed by siNOX 4 (small interference oligonucleotide RNA directed against NOX 4) silencing. Apocynin and plumbagin, specific inhibitors of NOX, prevent ROS production in this cellular model and confirm the role of NOX 4 for this production. Furthermore, we show that, in cell lysates, NOX 4 activity can be modulated by PUFAs (polyunsaturated fatty acids) at the micromolar level in the presence of calcium: NOX 4 activity is increased by arachidonic acid (C20:4,n-6) (approximately 175% of the control), and conjugated linoleic acid (C18:2 [9Z,11E]) is a potent inhibitor (50% of the control). Unexpectedly, intracellular superoxide dismutase does not participate in the modulation of this ROS production and the opposite effects of some PUFAs, described in our experiments, could suggest another way of regulating NOX activity.
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Affiliation(s)
- Adrien Rossary
- *UF 21455, Stress Oxydant et Vitamines, Fédération de Biochimie, Hôpital E. Herriot, 5, Place d'Arsonval, F-69437 Lyon, France
- †EA 3090, Claude Bernard University Lyon 1, Lyon, France
| | - Khelifa Arab
- ‡Division of Toxicology and Cancer Risk Factors, German Cancer Research Center (DKFZ), Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Jean-Paul Steghens
- *UF 21455, Stress Oxydant et Vitamines, Fédération de Biochimie, Hôpital E. Herriot, 5, Place d'Arsonval, F-69437 Lyon, France
- †EA 3090, Claude Bernard University Lyon 1, Lyon, France
- To whom correspondence should be addressed (email )
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