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Chistiakov DA, Orekhov AN, Bobryshev YV. Treatment of cardiovascular pathology with epigenetically active agents: Focus on natural and synthetic inhibitors of DNA methylation and histone deacetylation. Int J Cardiol 2016; 227:66-82. [PMID: 27852009 DOI: 10.1016/j.ijcard.2016.11.204] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/06/2016] [Indexed: 12/20/2022]
Abstract
Cardiovascular disease (CVD) retains a leadership as a major cause of human death worldwide. Although a substantial progress was attained in the development of cardioprotective and vasculoprotective drugs, a search for new efficient therapeutic strategies and promising targets is under way. Modulation of epigenetic CVD mechanisms through administration epigenetically active agents is one of such new approaches. Epigenetic mechanisms involve heritable changes in gene expression that are not linked to the alteration of DNA sequence. Pathogenesis of CVDs is associated with global genome-wide changes in DNA methylation and histone modifications. Epigenetically active compounds that influence activity of epigenetic modulators such as DNA methyltransferases (DNMTs), histone acetyltransferases, histone deacetylases (HDACs), etc. may correct these pathogenic changes in the epigenome and therefore be used for CVD therapy. To date, many epigenetically active natural substances (such as polyphenols and flavonoids) and synthetic compounds such as DNMT inhibitors or HDAC inhibitors are known. Both native and chemical DNMT and HDAC inhibitors possess a wide range of cytoprotective activities such as anti-inflammatory, antioxidant, anti-apoptotic, anti-anfibrotic, and anti-hypertrophic properties, which are beneficial of treatment of a variety of CVDs. However, so far, only synthetic DNMT inhibitors enter clinical trials while synthetic HDAC inhibitors are still under evaluation in preclinical studies. In this review, we consider epigenetic mechanisms such as DNA methylation and histone modifications in cardiovascular pathology and the epigenetics-based therapeutic approaches focused on the implementation of DNMT and HDAC inhibitors.
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Affiliation(s)
- Dimitry A Chistiakov
- Department of Molecular Genetic Diagnostics and Cell Biology, Division of Laboratory Medicine, Institute of Pediatrics, Research Center for Children's Health, 119991, Moscow, Russia
| | - Alexander N Orekhov
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, 125315, Russia; Department of Biophysics, Biological Faculty, Moscow State University, Moscow, 119991, Russia; Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow, 121609, Russia; National Research Center for Preventive Medicine, Moscow, 101000, Russia
| | - Yuri V Bobryshev
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, 125315, Russia; Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia; School of Medicine, University of Western Sydney, Campbelltown, NSW 2560, Australia.
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Gupta P, Bala M, Gupta S, Dua A, Dabur R, Injeti E, Mittal A. Efficacy and risk profile of anti-diabetic therapies: Conventional vs traditional drugs—A mechanistic revisit to understand their mode of action. Pharmacol Res 2016; 113:636-674. [DOI: 10.1016/j.phrs.2016.09.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 09/23/2016] [Accepted: 09/23/2016] [Indexed: 12/17/2022]
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Saldanha JF, Leal VO, Rizzetto F, Grimmer GH, Ribeiro-Alves M, Daleprane JB, Carraro-Eduardo JC, Mafra D. Effects of Resveratrol Supplementation in Nrf2 and NF-κB Expressions in Nondialyzed Chronic Kidney Disease Patients: A Randomized, Double-Blind, Placebo-Controlled, Crossover Clinical Trial. J Ren Nutr 2016; 26:401-406. [PMID: 27523436 DOI: 10.1053/j.jrn.2016.06.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 06/09/2016] [Accepted: 06/11/2016] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION Resveratrol is a phenolic compound that has demonstrated anti-inflammatory and antioxidant effects, resulting from enhanced antioxidant enzymes production and modulating nuclear factors involved in the inflammation-oxidative stress cycle, as nuclear erythroid 2-related factor 2 (Nrf2) and nuclear factor-κB (NF-κB). OBJECTIVE The study aim was to evaluate the effects of resveratrol supplementation on Nrf2 and NF-κB expression in nondialyzed chronic kidney disease (CKD) patients. MATERIALS AND METHODS A randomized, double-blind, crossover trial was performed in 20 nondialyzed CKD patients (62.0 ± 8.0 years old, 45% men, body mass index of 27.7 ± 1.2 kg/m2, estimated glomerular filtration rate of 34.0 ± 13.0 mL/minute). Eleven patients were randomly allocated to "placebo first" (4 weeks placebo; 8 weeks washout, 4 weeks 500 mg of resveratrol/day) and 9 to "resveratrol first" (4 weeks 500 mg of resveratrol/day, 8 weeks washout, 4 weeks placebo). The peripheral blood mononuclear cells were isolated and processed for expression Nrf2 and NF-κB by quantitative real-time polymerase chain reaction. Proinflammatory cytokines and antioxidant enzymes were also measured. RESULTS The effect size of Nrf2 supplementation (-0.13, P = .29) and NF-κB (0.09, P = .31) was not significant. There was no difference in proinflammatory biomarkers or antioxidant biomarkers after resveratrol supplementation. CONCLUSION In this pilot study, 500 mg of resveratrol supplementation for 4 weeks had no antioxidant and anti-inflammatory effect in nondialyzed CKD patients. Additional studies with differing doses and/or time of treatment should be conducted to better elucidate the effects of the resveratrol supplementation in CKD patients.
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Affiliation(s)
- Juliana F Saldanha
- Postgraduate Program in Medical Sciences, Federal Fluminense University (UFF), Niterói, Rio de Janeiro, Brazil.
| | - Viviane O Leal
- Postgraduate Program in Cardiovascular Sciences, Federal Fluminense University (UFF), Niterói, Rio de Janeiro, Brazil
| | - Felipe Rizzetto
- Division of Nutrition, Federal Hospital of Lagoa, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gustavo H Grimmer
- Institute of Biophysics, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcelo Ribeiro-Alves
- HIV/AIDS Clinical Research Center, National Institute of Infectology, INI, Fiocruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Julio B Daleprane
- Department of Basic and Experimental Nutrition, Institute of Nutrition, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - José C Carraro-Eduardo
- University Hospital Antonio Pedro, Medicine Faculty of Federal Fluminense University (UFF), Niterói, Rio de Janeiro, Brazil
| | - Denise Mafra
- Postgraduate Program in Medical Sciences, Federal Fluminense University (UFF), Niterói, Rio de Janeiro, Brazil; Postgraduate Program in Cardiovascular Sciences, Federal Fluminense University (UFF), Niterói, Rio de Janeiro, Brazil
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Bao LL, Liu ZQ. Tetrahydropyrrolization of Resveratrol and Other Stilbenes Improves Inhibitory Effects on DNA Oxidation. ChemMedChem 2016; 11:1617-25. [PMID: 27381052 DOI: 10.1002/cmdc.201600205] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 05/28/2016] [Indexed: 01/13/2023]
Abstract
The inhibitory effect of resveratrol on DNA oxidation caused by 2,2'-azobis(2-amidinopropane hydrochloride) (AAPH) was found to be enhanced if the C=C bond in resveratrol was converted into tetrahydropyrrole by reaction with azomethine ylide (CH2 =N(+) (CH3 )CH2 (-) ). This encouraged us to explore whether the inhibitory activities of other stilbenes could also be increased by the same method. We found that the inhibitory effects of the tetrahydropyrrole derivatives on AAPH-induced oxidation of DNA were higher than those of the corresponding stilbenes, because the tetrahydropyrrole motif can provide hydrogen atoms to be abstracted by radicals. Therefore, the tetrahydropyrrolization offered an advantage for enhancing the antioxidant effects of stilbenes. Notably, (CH3 )3 SiCH2 N(CH3 )CH2 OCH3 (in the presence of CF3 COOH) and (CH3 )3 NO (in the presence of LiN(iPr)2 ) can be used to generate azomethine ylide for the tetrahydropyrrolization of stilbenes containing electron-withdrawing and -donating groups, respectively.
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Affiliation(s)
- Liang-Liang Bao
- Department of Organic Chemistry, College of Chemistry, Jilin University, No. 2519 Jiefang Road, Changchun, 130021, China
| | - Zai-Qun Liu
- Department of Organic Chemistry, College of Chemistry, Jilin University, No. 2519 Jiefang Road, Changchun, 130021, China.
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Djurica D, Ren J, Holt RR, Feng X, Carlson CR, Shindel AW, Keen CL, Hackman RM. A single intake of a resveratrol-arginine conjugate improves microvascular function compared to trans-resveratrol in postmenopausal women. PHARMANUTRITION 2016. [DOI: 10.1016/j.phanu.2016.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bonnefont-Rousselot D. Resveratrol and Cardiovascular Diseases. Nutrients 2016; 8:nu8050250. [PMID: 27144581 PMCID: PMC4882663 DOI: 10.3390/nu8050250] [Citation(s) in RCA: 274] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 04/10/2016] [Accepted: 04/20/2016] [Indexed: 02/06/2023] Open
Abstract
The increased incidence of cardiovascular diseases (CVDs) has stimulated research for substances that could improve cardiovascular health. Among them, resveratrol (RES), a polyphenolic compound notably present in grapes and red wine, has been involved in the “French paradox”. RES is known for its antioxidant and anti-inflammatory properties and for its ability to upregulate endothelial NO synthase (eNOS). RES was able to scavenge •OH/O2•− and peroxyl radicals, which can limit the lipid peroxidation processes. Moreover, in bovine aortic endothelial cells (BAEC) under glucose-induced oxidative stress, RES restored the activity of dimethylargininedimethylaminohydrolase (DDAH), an enzyme that degrades an endogenous inhibitor of eNOS named asymmetric dimethylarginine (ADMA). Thus, RES could improve •NO availability and decrease the endothelial dysfunction observed in diabetes. Preclinical studies have made it possible to identify molecular targets (SIRT-1, AMPK, Nrf2, NFκB…); however, there are limited human clinical trials, and difficulties in the interpretation of results arise from the use of high-dose RES supplements in research studies, whereas low RES concentrations are present in red wine. The discussions on potential beneficial effects of RES in CVDs (atherosclerosis, hypertension, stroke, myocardial infarction, heart failure) should compare the results of preclinical studies with those of clinical trials.
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Affiliation(s)
- Dominique Bonnefont-Rousselot
- Department of Biochemistry, Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris 75006, France.
- Department of Metabolic Biochemistry, Pitié-Salpêtrière-Charles Foix Hospital (AP-HP), Paris 75013, France.
- Inserm UMR_S 1166 ICAN, UPMC, La Pitié Hospital, Paris 75013, France.
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Silva JF, Capettini LSA, da Silva JFP, Sales-Junior P, Cruz JS, Cortes SF, Lemos VS. Mechanisms of vascular dysfunction in acute phase of Trypanosoma cruzi infection in mice. Vascul Pharmacol 2016; 82:73-81. [PMID: 26988253 DOI: 10.1016/j.vph.2016.03.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 11/27/2015] [Accepted: 03/08/2016] [Indexed: 12/12/2022]
Abstract
Vascular disorders have a direct link to mortality in the acute phase of Trypanosoma cruzi infection. However, the underlying mechanisms of vascular dysfunction in this phase are largely unknown. We hypothesize that T. cruzi invades endothelial cells causing dysfunction in contractility and relaxation of the mouse aorta. Immunodetection of T. cruzi antigen TcRBP28 was observed in endothelial cells. There was a decreased endothelial nitric oxide synthase (eNOS)-derived NO-dependent vascular relaxation, and increased vascular contractility accompanied by augmented superoxide anions production. Endothelial removal, inhibition of cyclooxygenase 2 (COX-2), blockade of thromboxane A2 (TXA2) TP receptors, and scavenger of superoxide normalized the contractile response. COX-2, thromboxane synthase, inducible nitric oxide synthase (iNOS), p65 NFκB subunit and p22(phox) of NAD(P)H oxidase (NOX) subunit expressions were increased in vessels of chagasic animals. Serum TNF-α was augmented. Basal NO production, and nitrotyrosine residue expression were increased. It is concluded that T. cruzi invades mice aorta endothelial cells and increases TXA2/TP receptor/NOX-derived superoxide formation. Alongside, T. cruzi promotes systemic TNF-α increase, which stimulates iNOS expression in vessels and nitrosative stress. In light of the heart failure that develops in the chronic phase of the disease, to understand the mechanism involved in the increased contractility of the aorta is crucial.
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Affiliation(s)
- Josiane F Silva
- Department of Physiology and Biophysics, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Luciano S A Capettini
- Department of Physiology and Biophysics, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil; Department of Pharmacology, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - José F P da Silva
- Department of Physiology and Biophysics, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | | | - Jader Santos Cruz
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Steyner F Cortes
- Department of Pharmacology, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Virginia S Lemos
- Department of Physiology and Biophysics, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil.
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Resveratrol improves vasoprotective effects of captopril on aortic remodeling and fibrosis triggered by renovascular hypertension. Cardiovasc Pathol 2016; 25:116-9. [DOI: 10.1016/j.carpath.2015.11.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/03/2015] [Accepted: 11/07/2015] [Indexed: 11/20/2022] Open
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Massuyeau F, Faulques E, Latouche C, Barone V. New insights into the vibrational and optical signatures of trans-stilbene via integrated experimental and quantum mechanical approaches. Phys Chem Chem Phys 2016; 18:19378-85. [DOI: 10.1039/c6cp02787c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structure, spectroscopic parameters and optical properties of stilbene have been investigated by a computational protocol including suitable treatment of anharmonic contributions together with new experimental results.
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Affiliation(s)
- Florian Massuyeau
- Institut des Matériaux Jean Rouxel (IMN)
- Université de Nantes
- CNRS
- 44322 Nantes cedex 3
- France
| | - Eric Faulques
- Institut des Matériaux Jean Rouxel (IMN)
- Université de Nantes
- CNRS
- 44322 Nantes cedex 3
- France
| | - Camille Latouche
- Institut des Matériaux Jean Rouxel (IMN)
- Université de Nantes
- CNRS
- 44322 Nantes cedex 3
- France
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60
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Casey SC, Amedei A, Aquilano K, Azmi AS, Benencia F, Bhakta D, Bilsland AE, Boosani CS, Chen S, Ciriolo MR, Crawford S, Fujii H, Georgakilas AG, Guha G, Halicka D, Helferich WG, Heneberg P, Honoki K, Keith WN, Kerkar SP, Mohammed SI, Niccolai E, Nowsheen S, Vasantha Rupasinghe HP, Samadi A, Singh N, Talib WH, Venkateswaran V, Whelan RL, Yang X, Felsher DW. Cancer prevention and therapy through the modulation of the tumor microenvironment. Semin Cancer Biol 2015; 35 Suppl:S199-S223. [PMID: 25865775 PMCID: PMC4930000 DOI: 10.1016/j.semcancer.2015.02.007] [Citation(s) in RCA: 249] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 02/26/2015] [Accepted: 02/27/2015] [Indexed: 02/06/2023]
Abstract
Cancer arises in the context of an in vivo tumor microenvironment. This microenvironment is both a cause and consequence of tumorigenesis. Tumor and host cells co-evolve dynamically through indirect and direct cellular interactions, eliciting multiscale effects on many biological programs, including cellular proliferation, growth, and metabolism, as well as angiogenesis and hypoxia and innate and adaptive immunity. Here we highlight specific biological processes that could be exploited as targets for the prevention and therapy of cancer. Specifically, we describe how inhibition of targets such as cholesterol synthesis and metabolites, reactive oxygen species and hypoxia, macrophage activation and conversion, indoleamine 2,3-dioxygenase regulation of dendritic cells, vascular endothelial growth factor regulation of angiogenesis, fibrosis inhibition, endoglin, and Janus kinase signaling emerge as examples of important potential nexuses in the regulation of tumorigenesis and the tumor microenvironment that can be targeted. We have also identified therapeutic agents as approaches, in particular natural products such as berberine, resveratrol, onionin A, epigallocatechin gallate, genistein, curcumin, naringenin, desoxyrhapontigenin, piperine, and zerumbone, that may warrant further investigation to target the tumor microenvironment for the treatment and/or prevention of cancer.
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Affiliation(s)
- Stephanie C Casey
- Division of Oncology, Departments of Medicine and Pathology, Stanford University School of Medicine, Stanford, CA, United States
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Katia Aquilano
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Asfar S Azmi
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, United States
| | - Fabian Benencia
- Department of Biomedical Sciences, Ohio University, Athens, OH, United States
| | - Dipita Bhakta
- School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - Alan E Bilsland
- Institute of Cancer Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Chandra S Boosani
- Department of Biomedical Sciences, School of Medicine, Creighton University, Omaha, NE, United States
| | - Sophie Chen
- Ovarian and Prostate Cancer Research Laboratory, Guildford, Surrey, United Kingdom
| | | | - Sarah Crawford
- Department of Biology, Southern Connecticut State University, New Haven, CT, United States
| | - Hiromasa Fujii
- Department of Orthopedic Surgery, Nara Medical University, Kashihara, Japan
| | - Alexandros G Georgakilas
- Physics Department, School of Applied Mathematics and Physical Sciences, National Technical University of Athens, Athens, Greece
| | - Gunjan Guha
- School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | | | - William G Helferich
- University of Illinois at Urbana-Champaign, Champaign-Urbana, IL, United States
| | - Petr Heneberg
- Charles University in Prague, Third Faculty of Medicine, Prague, Czech Republic
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, Kashihara, Japan
| | - W Nicol Keith
- Institute of Cancer Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Sid P Kerkar
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Sulma I Mohammed
- Department of Comparative Pathobiology, Purdue University Center for Cancer Research, West Lafayette, IN, United States
| | | | - Somaira Nowsheen
- Medical Scientist Training Program, Mayo Graduate School, Mayo Medical School, Mayo Clinic, Rochester, MN, United States
| | - H P Vasantha Rupasinghe
- Department of Environmental Sciences, Faculty of Agriculture, Dalhousie University, Nova Scotia, Canada
| | | | - Neetu Singh
- Advanced Molecular Science Research Centre (Centre for Advanced Research), King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Wamidh H Talib
- Department of Clinical Pharmacy and Therapeutics, Applied Science University, Amman, Jordan
| | | | - Richard L Whelan
- Mount Sinai Roosevelt Hospital, Icahn Mount Sinai School of Medicine, New York City, NY, United States
| | - Xujuan Yang
- University of Illinois at Urbana-Champaign, Champaign-Urbana, IL, United States
| | - Dean W Felsher
- Division of Oncology, Departments of Medicine and Pathology, Stanford University School of Medicine, Stanford, CA, United States.
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Ortíz Cruz RA, Cárdenas López JL, González Aguilar GA, Astiazarán García H, Gorinstein S, Canett Romero R, Robles Sánchez M. Influence of Sorghum Kafirin on Serum Lipid Profile and Antioxidant Activity in Hyperlipidemic Rats (In Vitro and In Vivo Studies). BIOMED RESEARCH INTERNATIONAL 2015; 2015:164725. [PMID: 26634202 PMCID: PMC4637437 DOI: 10.1155/2015/164725] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 09/23/2015] [Accepted: 09/29/2015] [Indexed: 12/16/2022]
Abstract
The aim of this study was to compare in vitro the antioxidant potential of sorghum kafirin and sorghum flour and their influence on lipids and antioxidant capacity in rats. The antioxidant activity in sorghum kafirin extract measured by the DPPH and TEAC methods was increased 30 and 65 times, respectively, compared to that of its counterpart, sorghum flour. According to electrophoresis assay, the kafirins tert-butanol extract showed a high proportion of α-kafirin monomers, and its amino acid composition revealed higher hydrophobic amino acid content such as alanine, isoleucine, leucine, tyrosine and phenylalanine than sorghum flour extract. Diets supplemented with sorghum kafirin extract have improved lipid metabolism and increased the serum antioxidant potential (67%) especially in rats fed with added cholesterol. The bioactive peptides generated from kafirin in vivo hydrolysis appear to be associated with the positive effect on serum lipids and antioxidant activity. According to these results, sorghum kafirin extract at the levels used in this study apparently could be used for prevention of atherosclerosis and other chronic diseases.
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Affiliation(s)
- Raquel A. Ortíz Cruz
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Boulevard Luis Encinas y Rosales, Colonia Centro, 83000 Hermosillo Sonora, SON, Mexico
| | - José L. Cárdenas López
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Boulevard Luis Encinas y Rosales, Colonia Centro, 83000 Hermosillo Sonora, SON, Mexico
| | - Gustavo A. González Aguilar
- Centro de Investigación en Alimentación y Desarrollo, A.C. (CIAD, A.C.), Carretera a La Victoria, Km 0.6, 83304 Hermosillo Sonora, SON, Mexico
| | - Humberto Astiazarán García
- Centro de Investigación en Alimentación y Desarrollo, A.C. (CIAD, A.C.), Carretera a La Victoria, Km 0.6, 83304 Hermosillo Sonora, SON, Mexico
| | - Shela Gorinstein
- Institute for Drug Research, School of Pharmacy, The Hebrew University of Jerusalem, P.O. Box 12065, 91120 Jerusalem, Israel
| | - Rafael Canett Romero
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Boulevard Luis Encinas y Rosales, Colonia Centro, 83000 Hermosillo Sonora, SON, Mexico
| | - Maribel Robles Sánchez
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Boulevard Luis Encinas y Rosales, Colonia Centro, 83000 Hermosillo Sonora, SON, Mexico
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Poulose SM, Thangthaeng N, Miller MG, Shukitt-Hale B. Effects of pterostilbene and resveratrol on brain and behavior. Neurochem Int 2015. [PMID: 26212523 DOI: 10.1016/j.neuint.2015.07.017] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Age is the greatest universal risk factor for neurodegenerative diseases. During aging, these conditions progress from minor loss of function to major disruptions in daily life, loss of independence and ultimately death. Because approximately 25% of the world population is expected to be older than age 65 by 2050, and no treatments exist to halt or reverse ongoing neurodegeneration, the need for effective prevention strategies is more pressing that ever before. A growing body of research supports the role of diet in healthy aging, particularly diets rich in bioactive phytochemical compounds. Recently, stilbenes such as resveratrol (3, 5, 4'-trans-trihydroxystilbene) and its analogue, pterostilbene, have gained a significant amount of attention for their potent antioxidant, anti-inflammatory, and anticarcinogenic properties. However, evidence for the beneficial effects of stilbenes on cerebral function is just beginning to emerge. In this review, we summarize the current knowledge on the role of resveratrol and pterostilbene in improving brain health during aging, with specific focus on antioxidant and anti-inflammatory signaling and behavioral outcomes.
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Affiliation(s)
- Shibu M Poulose
- USDA-Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA
| | - Nopporn Thangthaeng
- USDA-Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA
| | - Marshall G Miller
- USDA-Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA
| | - Barbara Shukitt-Hale
- USDA-Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA.
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63
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Romero MA, González-Delgado JA, Arteaga JF. Synthesis of Stilbene Derivatives: A Comparative Study of their Antioxidant Activities. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A series of structurally simple compounds belonging to thestilbene family were synthesized by means of a Ti(III)-mediated methodology that allows access, in an efficient manner, to derivatives of dihydrostilbene, E-stilbene, and stilbene oxide, with high yields. The antioxidant activity of these compounds has been evaluated by means of two electrochemical assays, which provide complementary information, showing that the majority of these stilbene analogs exhibit significant antioxidant activity dependent on the electronic structure and functionalization of the molecule in each case.
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Affiliation(s)
- Miguel A. Romero
- CIQSO - Center for Research in Sustainable Chemistry and Department of Chemical Engineering, Physical Chemistry, and Organic Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
| | - José A. González-Delgado
- CIQSO - Center for Research in Sustainable Chemistry and Department of Chemical Engineering, Physical Chemistry, and Organic Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
| | - Jesús F. Arteaga
- CIQSO - Center for Research in Sustainable Chemistry and Department of Chemical Engineering, Physical Chemistry, and Organic Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
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Polyphenol Stilbenes: Molecular Mechanisms of Defence against Oxidative Stress and Aging-Related Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:340520. [PMID: 26180583 PMCID: PMC4477219 DOI: 10.1155/2015/340520] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 01/21/2015] [Indexed: 12/13/2022]
Abstract
Numerous studies have highlighted the key roles of oxidative stress and inflammation in aging-related diseases such as obesity, type 2 diabetes, age-related macular degeneration (AMD), and Alzheimer's disease (AD). In aging cells, the natural antioxidant capacity decreases and the overall efficiency of reparative systems against cell damage becomes impaired. There is convincing data that stilbene compounds, a diverse group of natural defence phenolics, abundant in grapes, berries, and conifer bark waste, may confer a protective effect against aging-related diseases. This review highlights recent data helping to clarify the molecular mechanisms involved in the stilbene-mediated protection against oxidative stress. The impact of stilbenes on the nuclear factor-erythroid-2-related factor-2 (Nrf2) mediated cellular defence against oxidative stress as well as the potential roles of SQSTM1/p62 protein in Nrf2/Keap1 signaling and autophagy will be summarized. The therapeutic potential of stilbene compounds against the most common aging-related diseases is discussed.
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Kitao Y, Ageta-Ishihara N, Takahashi R, Kinoshita M, Hori O. Transgenic supplementation of SIRT1 fails to alleviate acute loss of nigrostriatal dopamine neurons and gliosis in a mouse model of MPTP-induced parkinsonism. F1000Res 2015; 4:130. [PMID: 26167274 PMCID: PMC4482211 DOI: 10.12688/f1000research.6386.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/05/2015] [Indexed: 12/11/2022] Open
Abstract
Background Dopamine (DA) neuron-selective uptake and toxicity of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) causes parkinsonism in humans. Loss of DA neurons via mitochondrial damage and oxidative stress is reproduced by systemic injection of MPTP in animals, which serves as models of parkinsonism and Parkinson's disease (PD). This study aimed to test whether pan-neural supplementation of the longevity-related, pleiotropic deacetylase SIRT1, which confers partial tolerance to at least three models of stroke and neurodegeneration, could also alleviate MPTP-induced acute pathological changes in nigrostriatal DA neurons and neighboring glia. Results We employed a line of prion promoter-driven Sirt1-transgenic (Sirt1Tg) mice that chronically overexpress murine SIRT1 in the brain and spinal cord. Sirt1Tg and wild-type (WT) male littermates (3‒4 months old) were subjected to intraperitoneal injection of MPTP. Acute histopathological changes in the midbrain and striatum (caudoputamen) were assessed with serial coronal sections triply labeled for tyrosine hydroxylase (TH), glial fibrillary acidic protein (GFAP), and nuclear DNA. In the substantia nigra pars compacta (SNpc) of the midbrain, the number of TH-positive neurons and the reactive gliosis were comparable between the Sirt1Tg and WT littermates. In the striatum, the relative fluorescence intensity of TH-positive nerve terminals and the level of gliosis did not differ by the genotypes. Conclusions Sirt1Tg and WT littermate mice exhibited comparable acute histopathological reactions to the systemic injection of MPTP, loss of TH-positive neurons and reactive gliosis. Thus, the genetic supplementation of SIRT1 does not confer histologically recognizable protection on nigrostriatal DA neurons against acute toxicity of MPTP.
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Affiliation(s)
- Yasuko Kitao
- Department of Neuroanatomy, Kanazawa University, Takara-machi, Kanazawa, 920-8640, Japan
| | - Natsumi Ageta-Ishihara
- Department of Molecular Biology, Division of Biological Sciences, Nagoya University Graduate School of Science, Furo-cho, Chikusa, Nagoya 464-8602, Japan
| | - Ryosuke Takahashi
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, 606-8501, Japan ; Core Research for Evolutionary Science and Technology (CREST), Japan Science and Technology Agency (JST), Kawaguchi, Japan
| | - Makoto Kinoshita
- Department of Molecular Biology, Division of Biological Sciences, Nagoya University Graduate School of Science, Furo-cho, Chikusa, Nagoya 464-8602, Japan ; Core Research for Evolutionary Science and Technology (CREST), Japan Science and Technology Agency (JST), Kawaguchi, Japan
| | - Osamu Hori
- Department of Neuroanatomy, Kanazawa University, Takara-machi, Kanazawa, 920-8640, Japan ; Core Research for Evolutionary Science and Technology (CREST), Japan Science and Technology Agency (JST), Kawaguchi, Japan
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Oroian M, Escriche I. Antioxidants: Characterization, natural sources, extraction and analysis. Food Res Int 2015; 74:10-36. [PMID: 28411973 DOI: 10.1016/j.foodres.2015.04.018] [Citation(s) in RCA: 265] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 04/03/2015] [Accepted: 04/12/2015] [Indexed: 12/18/2022]
Abstract
Recently many review papers regarding antioxidants from different sources and different extraction and quantification procedures have been published. However none of them has all the information regarding antioxidants (chemistry, sources, extraction and quantification). This article tries to take a different perspective on antioxidants for the new researcher involved in this field. Antioxidants from fruit, vegetables and beverages play an important role in human health, for example preventing cancer and cardiovascular diseases, and lowering the incidence of different diseases. In this paper the main classes of antioxidants are presented: vitamins, carotenoids and polyphenols. Recently, many analytical methodologies involving diverse instrumental techniques have been developed for the extraction, separation, identification and quantification of these compounds. Antioxidants have been quantified by different researchers using one or more of these methods: in vivo, in vitro, electrochemical, chemiluminescent, electron spin resonance, chromatography, capillary electrophoresis, nuclear magnetic resonance, near infrared spectroscopy and mass spectrometry methods.
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Affiliation(s)
- Mircea Oroian
- Faculty of Food Engineering, Stefan cel Mare University of Suceava, Suceava, Romania.
| | - Isabel Escriche
- Institute of Food Engineering for Development (IUIAD), Food Technology Department (DTA), Universitat Politècnica de València, Valencia, Spain
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The potential benefits of red beetroot supplementation in health and disease. Nutrients 2015; 7:2801-22. [PMID: 25875121 PMCID: PMC4425174 DOI: 10.3390/nu7042801] [Citation(s) in RCA: 229] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 03/17/2015] [Accepted: 04/09/2015] [Indexed: 12/15/2022] Open
Abstract
In recent years there has been a growing interest in the biological activity of red beetroot (Beta vulgaris rubra) and its potential utility as a health promoting and disease preventing functional food. As a source of nitrate, beetroot ingestion provides a natural means of increasing in vivo nitric oxide (NO) availability and has emerged as a potential strategy to prevent and manage pathologies associated with diminished NO bioavailability, notably hypertension and endothelial function. Beetroot is also being considered as a promising therapeutic treatment in a range of clinical pathologies associated with oxidative stress and inflammation. Its constituents, most notably the betalain pigments, display potent antioxidant, anti-inflammatory and chemo-preventive activity in vitro and in vivo. The purpose of this review is to discuss beetroot’s biological activity and to evaluate evidence from studies that specifically investigated the effect of beetroot supplementation on inflammation, oxidative stress, cognition and endothelial function.
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Abstract
One of the main mechanisms by which dietary flavonoids are thought to influence cardiovascular disease is via protection of the bioactivity of the endothelium-derived nitric oxide (NO). Additionally, flavonoids may also interfere with the signalling cascades of inflammation and prevent overproduction of NO and its deleterious consequences in shock and ischemia-reperfusion injury. In the present paper we review the evidence of the effects of flavonoids on NO. Flavonoids exert complex actions on the synthesis and bioavailability of NO which may result both in enhanced or decreased NO levels: (1) in cell free systems, several flavonoids may scavenge NO via its pro-oxidant properties by increasing superoxide. However, under conditions of oxidative stress, flavonoids may also protect NO from superoxide-driven inactivation. (2) In intact healthy tissues, some flavonoids increase eNOS activity in endothelial cells. Paradoxically this effect involves a pro-oxidant effect which results in Ca(2+)-dependent activation of eNOS. As inhibitors of PI3K, flavonoids may potentially inhibit the PI3K/Akt-dependent activation of eNOS. (3) Under conditions of inflammation and oxidative stress, flavonoids may prevent the inflammatory signalling cascades via inhibition of NFκB and thereby downregulate iNOS. On the other hand, they also prevent the overexpression of ROS generating enzymes, reducing superoxide and peroxynitrite levels, and hence preventing superoxide-induced NO inactivation and eNOS uncoupling. Therefore, the final effect of flavonoids on NO levels will depend on the flavonoid structure and the concentrations used, on the cell type under study and particularly on the presence of inflammatory/oxidative conditions.
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Affiliation(s)
- J Duarte
- Department of Pharmacology, University of Granada, 18071, Granada, Spain
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Mokhtari Z, Hosseini S, Miri R, Baghestani AR, Zahedirad M, Rismanchi M, Nasrollahzadeh J. Relationship between Dietary Approaches to Stop Hypertension score and Alternative Healthy Eating Index score with plasma asymmetrical dimethylarginine levels in patients referring for coronary angiography. J Hum Nutr Diet 2015; 28:350-6. [DOI: 10.1111/jhn.12311] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Z. Mokhtari
- Department of Clinical Nutrition & Dietetics; Faculty of Nutrtiton Sciences and Food Technology; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - S. Hosseini
- Endocrinology and Metabolism Research Institute; Tehran University of Medical Sciences; Tehran Iran
| | - R. Miri
- Department of Cardiology; School of Medicine; Imam Hossein Hospital; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - A. R. Baghestani
- Department of Biostatistics; Faculty of Paramedical Sciences; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - M. Zahedirad
- Department of Nutrition Research; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - M. Rismanchi
- Faculty of Nutrition Sciences and Food Technology; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - J. Nasrollahzadeh
- Department of Clinical Nutrition & Dietetics; Faculty of Nutrition Sciences and Food Technology; National Nutrition and Food Technology Research Institute; Shahid Beheshti University of Medical Sciences; Tehran Iran
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Xu W, Shao R, Xiao J. Is There Consistency between the Binding Affinity and Inhibitory Potential of Natural Polyphenols as α-amylase Inhibitors? Crit Rev Food Sci Nutr 2015; 56:1630-9. [PMID: 25748632 DOI: 10.1080/10408398.2013.793652] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Liu Y, Liu Y, Chen H, Yao X, Xiao Y, Zeng X, Zheng Q, Wei Y, Song C, Zhang Y, Zhu P, Wang J, Zheng X. Synthetic Resveratrol Derivatives and Their Biological Activities: A Review. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/ojmc.2015.54006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Bouaziz A, khennouf S, zarga MA, Abdalla S, Baghiani A, Charef N. Phytochemical analysis, hypotensive effect and antioxidant properties of Myrtus communis L. growing in Algeria. Asian Pac J Trop Biomed 2015. [DOI: 10.1016/s2221-1691(15)30165-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Szkudelski T, Szkudelska K. Resveratrol and diabetes: from animal to human studies. Biochim Biophys Acta Mol Basis Dis 2014; 1852:1145-54. [PMID: 25445538 DOI: 10.1016/j.bbadis.2014.10.013] [Citation(s) in RCA: 232] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 10/10/2014] [Accepted: 10/20/2014] [Indexed: 02/07/2023]
Abstract
Diabetes mellitus is a serious disease affecting about 5% of people worldwide. Diabetes is characterized by hyperglycemia and impairment in insulin secretion and/or action. Moreover, diabetes is associated with metabolic abnormalities and serious complications. Resveratrol is a natural, biologically active polyphenol present in different plant species and known to have numerous health-promoting effects in both animals and humans. Anti-diabetic action of resveratrol has been extensively studied in animal models and in diabetic humans. In animals with experimental diabetes, resveratrol has been demonstrated to induce beneficial effects that ameliorate diabetes. Resveratrol, among others, improves glucose homeostasis, decreases insulin resistance, protects pancreatic β-cells, improves insulin secretion and ameliorates metabolic disorders. Effects induced by resveratrol are strongly related to the capability of this compound to increase expression/activity of AMPK and SIRT1 in various tissues of diabetic subjects. Moreover, anti-oxidant and anti-inflammatory effects of resveratrol were shown to be also involved in its action in diabetic animals. Preliminary clinical trials show that resveratrol is also effective in type 2 diabetic patients. Resveratrol may, among others, improve glycemic control and decrease insulin resistance. These results show that resveratrol holds great potential to treat diabetes and would be useful to support conventional therapy. This article is part of a Special Issue entitled: Resveratrol: Challenges in translating pre-clincial findigns to improved patient outcomes.
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Affiliation(s)
- Tomasz Szkudelski
- Department of Animal Physiology and Biochemistry, Poznan University of Life Sciences, Wolynska 35, 60-637 Poznan, Poland.
| | - Katarzyna Szkudelska
- Department of Animal Physiology and Biochemistry, Poznan University of Life Sciences, Wolynska 35, 60-637 Poznan, Poland
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Giuliani C, Bucci I, Di Santo S, Rossi C, Grassadonia A, Mariotti M, Piantelli M, Monaco F, Napolitano G. Resveratrol inhibits sodium/iodide symporter gene expression and function in rat thyroid cells. PLoS One 2014; 9:e107936. [PMID: 25251397 PMCID: PMC4176713 DOI: 10.1371/journal.pone.0107936] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 08/17/2014] [Indexed: 11/20/2022] Open
Abstract
Resveratrol is a polyphenol found in grapes and berries that has antioxidant, antiproliferative and anti-inflammatory properties. For these reasons, it is available as a dietary supplement, and it is under investigation in several clinical trials. Few data are available regarding the effects of resveratrol on thyroid function. A previous study showed that resveratrol transiently increases iodide influx in FRTL-5 rat thyroid cells. Indeed, this increase arises after short treatment times (6–12 h), and no further effects are seen after 24 h. The aim of the present study was to investigate the effects of resveratrol on iodide uptake and sodium/iodide symporter expression in thyroid cells after longer times of treatment. For this purpose, the effects of resveratrol were evaluated both in vitro and in vivo using the rat thyroid FRTL-5 cell line and Sprague-Dawley rats, respectively. In FRTL-5 cells, resveratrol decreased the sodium/iodide symporter RNA and protein expression as a function of time. Furthermore, resveratrol decreased cellular iodide uptake after 48 h of treatment. The inhibitory effect of resveratrol on iodide uptake was confirmed in vivo in Sprague-Dawley rats. This study demonstrates that with longer-term treatment, resveratrol is an inhibitor of sodium/iodide symporter gene expression and function in the thyroid. These data suggest that resveratrol can act as a thyroid disruptor, which indicates the need for caution as a supplement and in therapeutic use.
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Affiliation(s)
- Cesidio Giuliani
- Unit of Endocrinology, Department of Medicine and Sciences of Aging, “G. D'Annunzio” University of Chieti–Pescara, Chieti, Italy
- Aging Research Centre (Ce.S.I.), “G. D'Annunzio” University Foundation, Chieti, Italy
- * E-mail:
| | - Ines Bucci
- Unit of Endocrinology, Department of Medicine and Sciences of Aging, “G. D'Annunzio” University of Chieti–Pescara, Chieti, Italy
- Aging Research Centre (Ce.S.I.), “G. D'Annunzio” University Foundation, Chieti, Italy
| | - Serena Di Santo
- Unit of Endocrinology, Department of Medicine and Sciences of Aging, “G. D'Annunzio” University of Chieti–Pescara, Chieti, Italy
- Aging Research Centre (Ce.S.I.), “G. D'Annunzio” University Foundation, Chieti, Italy
| | - Cosmo Rossi
- Aging Research Centre (Ce.S.I.), “G. D'Annunzio” University Foundation, Chieti, Italy
| | - Antonino Grassadonia
- Aging Research Centre (Ce.S.I.), “G. D'Annunzio” University Foundation, Chieti, Italy
- Department of Oncology and Neurosciences, “G. D'Annunzio” University of Chieti–Pescara, Chieti, Italy
| | - Marianna Mariotti
- Aging Research Centre (Ce.S.I.), “G. D'Annunzio” University Foundation, Chieti, Italy
| | - Mauro Piantelli
- Aging Research Centre (Ce.S.I.), “G. D'Annunzio” University Foundation, Chieti, Italy
- Department of Oncology and Neurosciences, “G. D'Annunzio” University of Chieti–Pescara, Chieti, Italy
| | - Fabrizio Monaco
- Unit of Endocrinology, Department of Medicine and Sciences of Aging, “G. D'Annunzio” University of Chieti–Pescara, Chieti, Italy
- Aging Research Centre (Ce.S.I.), “G. D'Annunzio” University Foundation, Chieti, Italy
| | - Giorgio Napolitano
- Unit of Endocrinology, Department of Medicine and Sciences of Aging, “G. D'Annunzio” University of Chieti–Pescara, Chieti, Italy
- Aging Research Centre (Ce.S.I.), “G. D'Annunzio” University Foundation, Chieti, Italy
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75
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Resveratrol sensitizes selectively thyroid cancer cell to 131-iodine toxicity. J Toxicol 2014; 2014:839597. [PMID: 25276125 PMCID: PMC4170962 DOI: 10.1155/2014/839597] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 08/25/2014] [Accepted: 08/25/2014] [Indexed: 12/13/2022] Open
Abstract
Background. In this study, the radiosensitizing effect of resveratrol as a natural product was investigated on cell toxicity induced by (131)I in thyroid cancer cell. Methods. Human thyroid cancer cell and human nonmalignant fibroblast cell (HFFF2) were treated with (131)I and/or resveratrol at different concentrations for 48 h. The cell proliferation was measured by determination of the percent of the survival cells using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Results. Findings of this study show that resveratrol enhanced the cell death induced by (131)I on thyroid cancer cell. Also, resveratrol exhibited a protective effect on normal cells against (131)I toxicity. Conclusion. This result indicates a promising effect of resveratrol on improvement of cellular toxicity during iodine therapy.
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Chen B, Xue J, Meng X, Slutzky JL, Calvert AE, Chicoine LG. Resveratrol prevents hypoxia-induced arginase II expression and proliferation of human pulmonary artery smooth muscle cells via Akt-dependent signaling. Am J Physiol Lung Cell Mol Physiol 2014; 307:L317-25. [PMID: 24951775 DOI: 10.1152/ajplung.00285.2013] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Pulmonary artery smooth muscle cell (PASMC) proliferation plays a fundamental role in the vascular remodeling seen in pulmonary hypertensive diseases associated with hypoxia. Arginase II, an enzyme regulating the first step in polyamine and proline synthesis, has been shown to play a critical role in hypoxia-induced proliferation of human PASMC (hPASMC). In addition, there is evidence that patients with pulmonary hypertension have elevated levels of arginase in the vascular wall. Resveratrol, a natural polyphenol found in red wine and grape skins, has diverse biochemical and physiological actions including antiproliferative properties. Furthermore, resveratrol has been shown to attenuate right ventricular and pulmonary artery remodeling, both pathological components of pulmonary hypertension. The present studies tested the hypothesis that resveratrol would prevent hypoxia-induced pulmonary artery smooth muscle cell proliferation by inhibiting hypoxia-induced arginase II expression. Our data indicate that hypoxia-induced hPASMC proliferation is abrogated following treatment with resveratrol. In addition, the hypoxic induction of arginase II was directly attenuated by resveratrol treatment. Furthermore, we found that the inhibitory effect of resveratrol on arginase II in hPASMC was mediated through the PI3K-Akt signaling pathway. Supporting these in vitro findings, resveratrol normalized right ventricular hypertrophy in an in vivo neonatal rat model of chronic hypoxia-induced pulmonary hypertension. These novel data support the notion that resveratrol may be a potential therapeutic agent in pulmonary hypertension by preventing PASMC arginase II induction and proliferation.
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Affiliation(s)
- Bernadette Chen
- Pulmonary Hypertension Group, Center for Perinatal Research, Nationwide Children's Hospital, Columbus, Ohio; Department of Pediatrics, The Ohio State University, Columbus, Ohio
| | - Jianjing Xue
- Pulmonary Hypertension Group, Center for Perinatal Research, Nationwide Children's Hospital, Columbus, Ohio
| | - Xiaomei Meng
- Pulmonary Hypertension Group, Center for Perinatal Research, Nationwide Children's Hospital, Columbus, Ohio
| | - Jessica L Slutzky
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio; and
| | - Andrea E Calvert
- Pulmonary Hypertension Group, Center for Perinatal Research, Nationwide Children's Hospital, Columbus, Ohio
| | - Louis G Chicoine
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio; and Department of Pediatrics, The Ohio State University, Columbus, Ohio
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Plant-derived anti-inflammatory compounds: hopes and disappointments regarding the translation of preclinical knowledge into clinical progress. Mediators Inflamm 2014; 2014:146832. [PMID: 24987194 PMCID: PMC4060065 DOI: 10.1155/2014/146832] [Citation(s) in RCA: 134] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 05/07/2014] [Indexed: 01/10/2023] Open
Abstract
Many diseases have been described to be associated with inflammatory processes. The currently available anti-inflammatory drug therapy is often not successful or causes intolerable side effects. Thus, new anti-inflammatory substances are still urgently needed. Plants were the first source of remedies in the history of mankind. Since their chemical characterization in the 19th century, herbal bioactive compounds have fueled drug development. Also, nowadays, new plant-derived agents continuously enrich our drug arsenal (e.g., vincristine, galantamine, and artemisinin). The number of new, pharmacologically active herbal ingredients, in particular that of anti-inflammatory compounds, rises continuously. The major obstacle in this field is the translation of preclinical knowledge into evidence-based clinical progress. Human trials of good quality are often missing or, when available, are frequently not suitable to really prove a therapeutical value. This minireview will summarize the current situation of 6 very prominent plant-derived anti-inflammatory compounds: curcumin, colchicine, resveratrol, capsaicin, epigallocatechin-3-gallate (EGCG), and quercetin. We will highlight their clinical potential and/or pinpoint an overestimation. Moreover, we will sum up the planned trials in order to provide insights into the inflammatory disorders that are hypothesized to be beneficially influenced by the compound.
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Deglycosylation of stilbene glucoside compounds improves inhibition of 3-hydroxy-3-methylglutaryl coenzyme a reductase and squalene synthase activities. Food Sci Biotechnol 2014. [DOI: 10.1007/s10068-014-0088-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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79
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Zhang Y, Yu B, Sui Y, Gao X, Yang H, Ma T. Identification of resveratrol oligomers as inhibitors of cystic fibrosis transmembrane conductance regulator by high-throughput screening of natural products from chinese medicinal plants. PLoS One 2014; 9:e94302. [PMID: 24714160 PMCID: PMC3979805 DOI: 10.1371/journal.pone.0094302] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 03/15/2014] [Indexed: 12/14/2022] Open
Abstract
Inhibitors of cystic fibrosis transmembrane conductance regulator (CFTR) have been widely used for characterizing CFTR function in epithelial fluid transport and in diseases such as secretory diarrhea, polycystic kidney disease and cystic fibrosis. Few small molecule CFTR inhibitors have been discovered so far from combinatorial compound library. In the present study, we used a high throughput screening (HTS)-based natural product discovery strategy to identify new CFTR inhibitors from Chinese medicinal herbs. By screening 40,000 small molecule fractions from 500 herbal plants, we identified 42 positive fractions from 5 herbs and isolated two compounds that inhibited CFTR conductance from Chinese wild grapevine (Vitis amurensis Rupr). Mass spectrometry (MS) and nuclear magnetic resonance (NMR) studies determined the two active compounds as trans-ε-viniferin (TV) and r-2-viniferin (RV), respectively. Both compounds dose-dependently blocked CFTR-mediated iodide influx with IC50 around 20 μM. Further analysis by excised inside-out patch-clamp indicated strong inhibition of protein kinase A (PKA)-activated CFTR chloride currents by TV and RV. In ex vivo studies, TV and RV inhibited CFTR-mediated short-circuit Cl− currents in isolated rat colonic mucosa in a dose-dependent manner. In a closed-loop mouse model, intraluminal applications of TV (2.5 μg) and RV (4.5 μg) significantly reduced cholera toxin–induced intestinal fluid secretion. The present study identified two resveratrol oligomers as new CFTR inhibitors and validates our high-throughput screening method for discovery of bioactive compounds from natural products with complex chemical ingredients such as herbal plants.
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Affiliation(s)
- Yaofang Zhang
- School of Life Sciences, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, P.R. China
| | - Bo Yu
- School of Life Sciences, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, P.R. China
| | - Yujie Sui
- College of Basic Medical Sciences, Dalian Medical University, Dalian, P.R. China
| | - Xin Gao
- School of Medicine, Yanbian University, Yanji, P.R. China
| | - Hong Yang
- School of Life Sciences, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, P.R. China
- * E-mail: (HY); (THM)
| | - Tonghui Ma
- College of Basic Medical Sciences, Dalian Medical University, Dalian, P.R. China
- * E-mail: (HY); (THM)
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80
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Cho S. The Role of Functional Foods in Cutaneous Anti-aging. J Lifestyle Med 2014; 4:8-16. [PMID: 26064850 PMCID: PMC4390761 DOI: 10.15280/jlm.2014.4.1.8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 01/20/2014] [Indexed: 11/22/2022] Open
Abstract
Oral supplementation of micronutrients, or functional foods, to prevent aging has gained much attention and popularity as society ages and becomes more affluent, and as science reveals the pathological mechanisms of aging. Aging of the skin combines biologic aging and extrinsic aging caused predominantly by sunlight and other environmental toxins. Anti-aging functional foods exert their influence mostly through their anti-oxidant and anti-inflammatory effects, thereby abrogating collagen degradation and/or increasing procollagen synthesis. Clinical evidence supporting a role in preventing cutaneous aging is available for oral supplements such as carotenoids, polyphenols, chlorophyll, aloe vera, vitamins C and E, red ginseng, squalene, and omega-3 fatty acids. Collagen peptides and proteoglycans are claimed to provide building blocks of the dermal matrix. This review summarizes the current study findings of these functional foods.
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Affiliation(s)
- Soyun Cho
- Department of Dermatology, Seoul National University College of Medicine and Boramae Hospital ; Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital ; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Korea
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81
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Chaher N, Arraki K, Dillinseger E, Temsamani H, Bernillon S, Pedrot E, Delaunay JC, Mérillon JM, Monti JP, Izard JC, Atmani D, Richard T. Bioactive stilbenes from Vitis vinifera grapevine shoots extracts. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:951-954. [PMID: 23929536 DOI: 10.1002/jsfa.6341] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 07/30/2013] [Accepted: 08/08/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Viticultural residues from commercial viticultural activities represent a potentially important source of bioactive stilbenes such as resveratrol. The main aim of the present study was therefore to isolate, identify and perform biological assays against amyloid-β peptide aggregation of original stilbenes from Vitis vinifera shoots. RESULTS A new resveratrol oligomer, (Z)-cis-miyabenol C (3), was isolated from Vitis vinifera grapevine shoots together with two newly reported oligostilbenes from Vitis vinifera shoots, vitisinol C (1) and (E)-cis-miyabenol C (2), and six known compounds: piceatannol, resveratrol, (E)-ε-viniferin (trans-ε-viniferin), ω-viniferin, vitisinol C and (E)-miyabenol C. The structures of these resveratrol derivatives were established on the basis of detailed spectroscopic analysis including nuclear magnetic resonance experiments. All the newly reported compounds were tested for their anti-aggregative activity against amyloid-β fibril formation. Vitisinol C was found to exert a significant activity against amyloid-β aggregation. CONCLUSION Vitis vinifera grapevine shoots are potentially interesting as a source of new bioactive stilbenes, such as vitisinol C.
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Affiliation(s)
- Nassima Chaher
- Université de Bejaia, Faculté des Sciences de la Nature et de la vie, Laboratoire de Biochimie Appliquée, Bejaia, 06000, Algérie
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82
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Menet MC, Marchal J, Dal-Pan A, Taghi M, Nivet-Antoine V, Dargère D, Laprévote O, Beaudeux JL, Aujard F, Epelbaum J, Cottart CH. Resveratrol metabolism in a non-human primate, the grey mouse lemur (Microcebus murinus), using ultra-high-performance liquid chromatography-quadrupole time of flight. PLoS One 2014; 9:e91932. [PMID: 24663435 PMCID: PMC3963864 DOI: 10.1371/journal.pone.0091932] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 02/18/2014] [Indexed: 12/12/2022] Open
Abstract
The grey mouse lemur (Microcebus murinus) is a non-human primate used to study the ageing process. Resveratrol is a polyphenol that may increase lifespan by delaying age-associated pathologies. However, no information about resveratrol absorption and metabolism is available for this primate. Resveratrol and its metabolites were qualitatively and quantitatively analyzed in male mouse-lemur plasma (after 200 mg.kg−1 of oral resveratrol) by ultra-high performance liquid chromatography (UHPLC), coupled to a quadrupole-time-of-flight (Q-TOF) mass spectrometer used in full-scan mode. Data analyses showed, in MSE mode, an ion common to resveratrol and all its metabolites: m/z 227.072, and an ion common to dihydro-resveratrol metabolites: m/z 229.08. A semi-targeted study enabled us to identify six hydrophilic resveratrol metabolites (one diglucurono-conjugated, two monoglucurono-conjugated, one monosulfo-conjugated and two both sulfo- and glucurono-conjugated derivatives) and three hydrophilic metabolites of dihydro-resveratrol (one monoglucurono-conjugated, one monosulfo-conjugated, and one both sulfo- and glucurono-conjugated derivatives). The presence of such metabolites has been already detected in the mouse, rat, pig, and humans. Free resveratrol was measurable for several hours in mouse-lemur plasma, and its two main metabolites were trans-resveratrol-3-O-glucuronide and trans-resveratrol-3-sulfate. Free dihydro-resveratrol was not measurable whatever the time of plasma collection, while its hydrophilic metabolites were present at 24 h after intake. These data will help us interpret the effect of resveratrol in mouse lemurs and provide further information on the inter-species characteristics of resveratrol metabolism.
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Affiliation(s)
- Marie-Claude Menet
- EA 4463, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- * E-mail:
| | - Julia Marchal
- Mécanismes Adaptatifs et Evolution, UMR 7179, Centre National de la Recherche Scientifique, Muséum National d'Histoire Naturelle, Brunoy, France
| | - Alexandre Dal-Pan
- Mécanismes Adaptatifs et Evolution, UMR 7179, Centre National de la Recherche Scientifique, Muséum National d'Histoire Naturelle, Brunoy, France
| | - Méryam Taghi
- EA 4463, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Valérie Nivet-Antoine
- EA 4466, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Service de Biochimie, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - Delphine Dargère
- EA 4463, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Olivier Laprévote
- EA 4463, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Service de Toxicologie biologique, AP-HP, G.H. Lariboisière – Saint Louis – Fernand Widal, Paris, France
| | - Jean-Louis Beaudeux
- EA 4466, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Service de Biochimie A, G.H. Necker - Enfants malades, AP-HP, Paris, France
| | - Fabienne Aujard
- Mécanismes Adaptatifs et Evolution, UMR 7179, Centre National de la Recherche Scientifique, Muséum National d'Histoire Naturelle, Brunoy, France
| | - Jacques Epelbaum
- Centre de Psychiatrie et Neuroscience, UMR 894 Inserm, Faculté de Médecine, Université Paris Descartes, Paris, France
| | - Charles-Henry Cottart
- EA 4466, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Service de Biochimie A, G.H. Necker - Enfants malades, AP-HP, Paris, France
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83
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Raffaelli F, Vignini A, Giulietti A, Alidori A, Borroni F, Sforza G, Faloia E, Mazzanti L, Nanetti L. In vitro effects of resveratrol on oxidative stress in diabetic platelets. Acta Diabetol 2014; 51:61-9. [PMID: 23669883 DOI: 10.1007/s00592-013-0480-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 04/29/2013] [Indexed: 01/11/2023]
Abstract
To evaluate the in vitro effects of resveratrol (RSV) incubation on platelets from compensated and decompensated diabetic patients in order to use it as an adjuvant therapy. The study was performed on 77 diabetic patients and divided into two phases: 29 compensated and 48 decompensated diabetic platelets were analyzed at recruitment (T₀) and after in vitro RSV incubation (20 μg/ml) for 3 h at 37 °C (T₁). Lipoperoxide and nitric oxide (NO) levels, superoxide dismutase (SOD) and Na(+)/K(+) ATPase activities, total antioxidant capacity (TAC), and membrane fluidity tested by anisotropy of fluorescent probes TMA-DPH and DPH were determined. In vitro RSV incubation counteracts oxidative damage associated with diabetes and its complications; it is able to improve platelet function through augmented membrane fluidity and Na(+)/K(+) ATPase activity; it enhances antioxidant systems' functionality by increasing NO levels, SOD activity, and TAC and by decreasing lipoperoxide levels in both compensated and decompensated patients. Such platelet functionality enhancement suggests a new method of secondary prevention of complications associated with platelet dysfunction. Being free from one of the major risks associated with many antidiabetic agents, it can be assumed that RSV utilization in the diabetic diet may have a preventive and protective role in the progression of diabetic oxidative damage.
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Affiliation(s)
- F Raffaelli
- Section of Biochemistry, Biology and Physics, Department of Clinical Sciences, Faculty of Medicine, Marche Polytechnic University, Via Tronto 10, 60128, Ancona, Italy
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84
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Shi J, He M, Cao J, Wang H, Ding J, Jiao Y, Li R, He J, Wang D, Wang Y. The comparative analysis of the potential relationship between resveratrol and stilbene synthase gene family in the development stages of grapes (Vitis quinquangularis and Vitis vinifera). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2014; 74:24-32. [PMID: 24246671 DOI: 10.1016/j.plaphy.2013.10.021] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Accepted: 10/16/2013] [Indexed: 05/03/2023]
Abstract
Resveratrol is positively correlated with grapevine disease resistance and its consumption is also highly beneficial to human health. HPLC analyses showed that resveratrol content was significantly higher in most wild Chinese grapevines than in most European Vitis vinifera grapevine cvs. Fruit of the wild Chinese genotype Vitis quinquangularis Danfeng-2 contains much higher levels of resveratrol than some others. Because stilbene synthase is responsible for resveratrol biosynthesis, 41 full-length stilbene synthase genes were isolated from Danfeng-2 using the RACE method. A neighbor-joining tree of the STS family displayed high similarity between Danfeng-2 and V. vinifera cv. Pinot Noir. The content of the endogenous stilbene synthase family in tissues and the expression levels induced by powdery mildew were both higher in Danfeng-2 than in Pinot Noir. Moreover, expression in the berry was significantly higher than in the leaves. Our results demonstrated that resveratrol accumulation was consistent with endogenous STS gene expressions, and that both were higher in Danfeng-2 than in Pinot Noir. Therefore, STS genes and producing resveratrol from V. quinquangularis played more important role in Vitis resistance. Otherwise, the gene VqSTS6 was markedly higher than the other VqSTS genes in the six tissues/organs assayed by Real-time PCR, which will offer a useful basis for commercial application of resveratrol from Chinese wild grapes.
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Affiliation(s)
- Jiangli Shi
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Mingyang He
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jiangling Cao
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Huan Wang
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jiahua Ding
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Yuntong Jiao
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Ruimin Li
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jing He
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Dan Wang
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Yuejin Wang
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China.
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85
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Chantrapromma S, Boonnak N, Jindawong B, Fun HK. 2-[( E)-2-(4-Hydroxy-3-methoxyphenyl)ethenyl]-1-methylpyridinium 4-bromobenzenesulfonate monohydrate. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o1851-2. [PMID: 24454267 PMCID: PMC3885091 DOI: 10.1107/s1600536813031917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Accepted: 11/22/2013] [Indexed: 11/11/2022]
Abstract
The title salt crystallized as the monohydrate C15H16NO2+·C6H4BrSO3−·H2O. The cation exists in an E conformation with respect to the ethynyl bond and is essentially planar, with a dihedral angle of 6.52 (14)° between the pyridinium and the benzene rings. The hydroxy and methoxy substituents are coplanar with the benzene ring to which they are attached, with an r.m.s. deviation of 0.0116 (3) Å for the nine non-H atoms [Cmethyl—O—C—C torsion angle = −0.8 (4)°]. In the crystal, the cations and anions are stacked by π–π interactions, with centroid–centroid distances of 3.7818 (19) and 3.9004 (17) Å. The cations, anions and water molecules are linked by O—H⋯O hydrogen bonds and weak C—H⋯O interactions, forming a three-dimensional network.
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86
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The functional group on (E)-4,4′–disubstituted stilbenes influences toxicity and antioxidative activity in differentiated PC-12 cells. Bioorg Med Chem Lett 2013; 23:6355-9. [DOI: 10.1016/j.bmcl.2013.09.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 09/17/2013] [Accepted: 09/23/2013] [Indexed: 01/21/2023]
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87
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Beauvieux MC, Stephant A, Gin H, Serhan N, Couzigou P, Gallis JL. Resveratrol mainly stimulates the glycolytic ATP synthesis flux and not the mitochondrial one: a saturation transfer NMR study in perfused and isolated rat liver. Pharmacol Res 2013; 78:11-7. [PMID: 24090928 DOI: 10.1016/j.phrs.2013.09.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 09/08/2013] [Accepted: 09/15/2013] [Indexed: 12/19/2022]
Abstract
Our aim was to monitor the effects of resveratrol (RSV) on the respective contribution of glycolysis and oxidative phosphorylation on the unidirectional flux of ATP synthesis in whole isolated rat liver perfused with Krebs-Henseleit Buffer (KHB). The rate of tissular ATP supply was measured directly by monitoring the chemical exchange Pi toward ATP with saturation transfer (ST) (31)P nuclear magnetic resonance, a method applied for the first time for studying the effects of RSV. ST allows the measurement of the total cellular Pi→ATP chemical exchange; after specific inhibition of glycolysis with iodacetate, ST could provide the Pi→ATP flux issued from mitochondria. This latter was compared to mitochondrial ATP turn-over evaluated after chemical ischemia (CI), performed with specific inhibition (KCN) of oxidative phosphorylation, and measured by standard (31)P NMR spectroscopy. In controls (KHB alone), the apparent time constant (ks) of Pi exchange toward ATP as measured by ST was 0.48±0.04s(-1) leading to a total ATP synthesis rate of 37±3.9μmolmin(-1)g(-1). KHB+RSV perfusion increased ks (+52%; p=0.0009 vs. KHB) leading to an enhanced rate of total ATP synthesis (+52%; p=0.01 vs. KHB). When glycolysis was previously inhibited in KHB, both ks and ATP synthesis flux dramatically decreased (-87% and -86%, respectively, p<0.0001 vs. KHB without inhibition), evidencing a collapse of Pi-to-ATP exchange. However, glycolysis inhibition in KHB+RSV reduced to less extent ks (-41%, p=0.0005 vs. KHB+RSV without inhibition) and ATP synthesis flux (-18%). Using the CI method in KHB and KHB+RSV, KCN addition after glycolysis inhibition induced a rapid fall to zero of the ATP content. The mitochondrial ATP turnover R(t0) and its time constant kd mito were similar in KHB (1.18±0.19μmolmin(-1)g(-1) and 0.91±0.13min(-1)) and KHB+RSV (1.36±0.26μmolmin(-1)g(-1) and 0.77±0.18min(-1)). Since mitochondrial ATP turnover was not increased by RSV, the stimulation of Pi-to-ATP exchange by RSV mainly reflected an increase in glycolytic ATP synthesis flux. Moreover, the maintenance by RSV of a high level of Pi-to-ATP exchange after glycolysis inhibition evidenced a protective effect of the polyphenol, in agreement with our previous hypothesis of a stimulation of substrate flux throughout the glycolysis 3-carbon step.
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Affiliation(s)
- Marie-Christine Beauvieux
- Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536 CNRS-Université, Bordeaux Segalen, LabEx TRAIL-IBIO, 146 rue Léo Saignat, F-33076 Bordeaux Cedex, France.
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88
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Gualdoni GA, Kovarik JJ, Hofer J, Dose F, Pignitter M, Doberer D, Steinberger P, Somoza V, Wolzt M, Zlabinger GJ. Resveratrol enhances TNF-α production in human monocytes upon bacterial stimulation. Biochim Biophys Acta Gen Subj 2013; 1840:95-105. [PMID: 24035785 DOI: 10.1016/j.bbagen.2013.09.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 09/04/2013] [Accepted: 09/06/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Resveratrol is a key component of red wine that has been reported to have anti-carcinogenic and anti-aging properties. Additional studies conducted in vitro and in animal models suggested anti-inflammatory properties. However, data from primary human immune cells and in vivo studies are limited. METHODS A pilot study was performed including 10 healthy volunteers. Plasma cytokine levels were measured over 48h after oral application of 5g resveratrol. To verify the in vivo findings, cytokine release and gene expression in human peripheral blood mononuclear cells (PBMC) and/or monocytes was assessed after treatment with resveratrol or its metabolites and stimulation with several toll-like receptor (TLR)-agonists. Additionally, the impact on intracellular signaling pathways was analyzed using a reporter cell line and Western blotting. RESULTS Resveratrol treated individuals showed a significant increase in tumor necrosis factor-α (TNF-α) levels 24h after treatment compared to baseline. Studies using human PBMC or isolated monocytes confirmed potentiation of TNF-α production with different TLR agonists, while interleukin (IL)-10 was inhibited. Moreover, we observed significantly enhanced nuclear factor 'kappa-light-chain-enhancer' of activated B-cells (NF-κB) activation using a reporter cell line and found increased phosphorylation of p105, which is indicative of alternative NF-κB pathway activation. GENERAL SIGNIFICANCE By administering resveratrol to healthy humans and utilizing primary immune cells we were able to detect TNF-α enhancing properties of the agent. In parallel, we found enhanced alternative NF-κB activation. We report on a novel pro-inflammatory property of resveratrol which has to be considered in concepts of its biologic activity.
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Affiliation(s)
- Guido A Gualdoni
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Borschkegasse 8a, 1090 Vienna, Austria.
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89
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Stenvinkel P, Fröbert O, Anderstam B, Palm F, Eriksson M, Bragfors-Helin AC, Qureshi AR, Larsson T, Friebe A, Zedrosser A, Josefsson J, Svensson M, Sahdo B, Bankir L, Johnson RJ. Metabolic changes in summer active and anuric hibernating free-ranging brown bears (Ursus arctos). PLoS One 2013; 8:e72934. [PMID: 24039826 PMCID: PMC3767665 DOI: 10.1371/journal.pone.0072934] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 07/12/2013] [Indexed: 12/31/2022] Open
Abstract
The brown bear (Ursus arctos) hibernates for 5 to 6 months each winter and during this time ingests no food or water and remains anuric and inactive. Despite these extreme conditions, bears do not develop azotemia and preserve their muscle and bone strength. To date most renal studies have been limited to small numbers of bears, often in captive environments. Sixteen free-ranging bears were darted and had blood drawn both during hibernation in winter and summer. Samples were collected for measurement of creatinine and urea, markers of inflammation, the calcium-phosphate axis, and nutritional parameters including amino acids. In winter the bear serum creatinine increased 2.5 fold despite a 2-fold decrease in urea, indicating a remarkable ability to recycle urea nitrogen during hibernation. During hibernation serum calcium remained constant despite a decrease in serum phosphate and a rise in FGF23 levels. Despite prolonged inactivity and reduced renal function, inflammation does not ensue and bears seem to have enhanced antioxidant defense mechanisms during hibernation. Nutrition parameters showed high fat stores, preserved amino acids and mild hyperglycemia during hibernation. While total, essential, non-essential and branched chain amino acids concentrations do not change during hibernation anorexia, changes in individual amino acids ornithine, citrulline and arginine indicate an active, although reduced urea cycle and nitrogen recycling to proteins. Serum uric acid and serum fructose levels were elevated in summer and changes between seasons were positively correlated. Further studies to understand how bears can prevent the development of uremia despite minimal renal function during hibernation could provide new therapeutic avenues for the treatment of human kidney disease.
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Affiliation(s)
- Peter Stenvinkel
- Division of Renal Medicine, Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- * E-mail:
| | - Ole Fröbert
- Department of Cardiology, University Hospital of Örebro, Örebro, Sweden
| | - Björn Anderstam
- Division of Renal Medicine, Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Fredrik Palm
- Department of Medical & Health Sciences, Experimental Renal Medicine, Linköping University, Linköping, Sweden
| | - Monica Eriksson
- Division of Renal Medicine, Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Ann-Christin Bragfors-Helin
- Division of Renal Medicine, Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Abdul Rashid Qureshi
- Division of Renal Medicine, Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Tobias Larsson
- Division of Renal Medicine, Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Andrea Friebe
- Zoologisches Institut, Goethe-Universität, Frankfurt am Main, Germany
| | - Andreas Zedrosser
- Faculty of Arts & Sciences, Department of Environmental & Health Studies, Telemark University College, Porsgrunn, Norway
- Institute for Wildlife Biology & Game Management, University for Natural Research & Life Sciences, Vienna, Austria
| | - Johan Josefsson
- Department of Cardiology, University Hospital of Örebro, Örebro, Sweden
| | - My Svensson
- Department of Nephrology, Aarhus University Hospital, Aarhus, Denmark
| | - Berolla Sahdo
- Department of Clinical Medicine, School of Health and Medical Sciences, Örebro University, Örebro, Sweden
| | - Lise Bankir
- INSERM Unit 872-E2, Centre de Recherche des Cordeliers, Paris, France
| | - Richard J. Johnson
- Division of Renal Diseases and Hypertension, University of Colorado Denver, Denver, Colorado, United States of America
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90
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Sena CM, Pereira AM, Seiça R. Endothelial dysfunction - a major mediator of diabetic vascular disease. Biochim Biophys Acta Mol Basis Dis 2013; 1832:2216-31. [PMID: 23994612 DOI: 10.1016/j.bbadis.2013.08.006] [Citation(s) in RCA: 534] [Impact Index Per Article: 48.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 07/31/2013] [Accepted: 08/20/2013] [Indexed: 12/18/2022]
Abstract
The vascular endothelium is a multifunctional organ and is critically involved in modulating vascular tone and structure. Endothelial cells produce a wide range of factors that also regulate cellular adhesion, thromboresistance, smooth muscle cell proliferation, and vessel wall inflammation. Thus, endothelial function is important for the homeostasis of the body and its dysfunction is associated with several pathophysiological conditions, including atherosclerosis, hypertension and diabetes. Patients with diabetes invariably show an impairment of endothelium-dependent vasodilation. Therefore, understanding and treating endothelial dysfunction is a major focus in the prevention of vascular complications associated with all forms of diabetes mellitus. The mechanisms of endothelial dysfunction in diabetes may point to new management strategies for the prevention of cardiovascular disease in diabetes. This review will focus on the mechanisms and therapeutics that specifically target endothelial dysfunction in the context of a diabetic setting. Mechanisms including altered glucose metabolism, impaired insulin signaling, low-grade inflammatory state, and increased reactive oxygen species generation will be discussed. The importance of developing new pharmacological approaches that upregulate endothelium-derived nitric oxide synthesis and target key vascular ROS-producing enzymes will be highlighted and new strategies that might prove clinically relevant in preventing the development and/or retarding the progression of diabetes associated vascular complications.
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Affiliation(s)
- Cristina M Sena
- Institute of Physiology, Faculty of Medicine, University of Coimbra, Portugal; IBILI, Faculty of Medicine, University of Coimbra, Portugal.
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91
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Singh N, Agrawal M, Doré S. Neuroprotective properties and mechanisms of resveratrol in in vitro and in vivo experimental cerebral stroke models. ACS Chem Neurosci 2013; 4:1151-62. [PMID: 23758534 DOI: 10.1021/cn400094w] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Resveratrol, a natural stilbene present at relatively high concentrations in grape skin and seeds and red wine, is known for its purported antioxidant activity in the vascular and nervous systems. In contrast to its direct antioxidant role within the central nervous system, recent research supports a protective mechanism through increasing endogenous cellular antioxidant defenses, which triggers a cascade of parallel neuroprotective pathways. A growing body of in vitro and in vivo evidence indicates that resveratrol acts through multiple pathways and reduces ischemic damage in vital organs, such as the heart and the brain, in various rodent models. Most of the protective biological actions of resveratrol have been associated with its antioxidative, anti-inflammatory, and antiapoptotic properties and other indirect pathways. Continued public interest and increasing resveratrol supplements on the market warrant a review of the available in vitro and in vivo science reported in the stroke-related literature. Rigorous clinical trials evaluating the effects of resveratrol in stroke are absent, though the general population consumption appears to be relatively safe. Resveratrol has shown potential for treating stroke in laboratory animals and in vitro human cell studies, yet there is still a need for human research in preclinical settings. This review summarizes many of the findings on the neuroprotective potential of resveratrol in cerebral stroke, focusing on both the in vitro and in vivo experimental models and some proposed mechanisms of action.
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Affiliation(s)
- Nilendra Singh
- Department of Anesthesiology and ‡Departments of Neurology, Psychiatry, and
Neuroscience, University of Florida, College of Medicine, Gainesville, Florida 32610, United States
| | - Megha Agrawal
- Department of Anesthesiology and ‡Departments of Neurology, Psychiatry, and
Neuroscience, University of Florida, College of Medicine, Gainesville, Florida 32610, United States
| | - Sylvain Doré
- Department of Anesthesiology and ‡Departments of Neurology, Psychiatry, and
Neuroscience, University of Florida, College of Medicine, Gainesville, Florida 32610, United States
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92
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Csuk R, Albert S, Siewert B. Synthesis and Radical Scavenging Activities of Resveratrol Analogs. Arch Pharm (Weinheim) 2013; 346:504-10. [DOI: 10.1002/ardp.201300081] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 05/16/2013] [Accepted: 05/24/2013] [Indexed: 11/11/2022]
Affiliation(s)
- René Csuk
- Martin-Luther-Universität Halle-Wittenberg; Bereich Organische Chemie; Halle (Saale); Germany
| | - Sabrina Albert
- Martin-Luther-Universität Halle-Wittenberg; Bereich Organische Chemie; Halle (Saale); Germany
| | - Bianka Siewert
- Martin-Luther-Universität Halle-Wittenberg; Bereich Organische Chemie; Halle (Saale); Germany
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93
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Cottart CH, Nivet-Antoine V, Beaudeux JL. Review of recent data on the metabolism, biological effects, and toxicity of resveratrol in humans. Mol Nutr Food Res 2013; 58:7-21. [PMID: 23740855 DOI: 10.1002/mnfr.201200589] [Citation(s) in RCA: 193] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 03/07/2013] [Accepted: 03/12/2013] [Indexed: 12/21/2022]
Abstract
Several recently published clinical trials have extended our knowledge on the use of resveratrol (RVT) to treat several human pathological and metabolic disorders. Herein, we present insights into the metabolism, biological effects, and toxicity of RVT in humans. Recent data show that RVT exhibits antioxidant and anti-inflammatory activities. It can also improve glucose and lipid metabolism, it acts on cardiovascular parameters, and can modify some pathways involved in carcinogenesis. However, these effects are mostly tiny and the results are sometimes controversial as they depend on the protocols (i.e. dose, form of administration, patients' characteristics, adjuvant therapy, etc.). Toxicological data confirm that RVT is well tolerated. Any adverse effects (mainly concerning the abdomen), at doses of ≥0.5 g/day for long periods, remain moderate and reversible. Nevertheless, the efficacy and safety of RVT need to be further investigated.
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Affiliation(s)
- Charles-Henry Cottart
- Sorbonne Paris Cité, Faculté des Sciences Pharmaceutiques et Biologiques, EA 4466, Université Paris Descartes, Paris, France; APHP, Hôpital Universitaire Necker - Enfants malades, Service de Biochimie A, Paris, France
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94
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Li G, Zhu Y, Zhang Y, Lang J, Chen Y, Ling W. Estimated Daily Flavonoid and Stilbene Intake from Fruits, Vegetables, and Nuts and Associations with Lipid Profiles in Chinese Adults. J Acad Nutr Diet 2013; 113:786-94. [DOI: 10.1016/j.jand.2013.01.018] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Accepted: 01/14/2013] [Indexed: 01/09/2023]
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95
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Hedayati M, Shafaghati N, Hosseinimehr SJ. Resveratrol mitigates genotoxicity induced by iodine-131 in primary human lymphocytes. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2013; 52:287-291. [PMID: 23435954 DOI: 10.1007/s00411-013-0461-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 02/06/2013] [Indexed: 06/01/2023]
Abstract
The purpose of this study was to investigate the radioprotective effects of resveratrol as a natural product that protects against genotoxic actions of (131)I in cultured human lymphocytes. Whole-blood samples from human volunteers were treated with resveratrol at doses of 0.5, 1, 5, and 50 μg/mL for 1 h, after which the lymphocytes were incubated with (131)I (100 μCi/1.5 mL) for 2 h. The lymphocyte cultures were then mitogenically stimulated to enable evaluation of the number of micronuclei in cytokinesis-blocked binucleated cells. Incubation of lymphocytes with (131)I induced genotoxicity, which was reflected by an increase in micronuclei frequency. At the doses tested, resveratrol significantly reduced micronuclei frequency. Maximal protective effects occurred at a dose of 1 μg/mL, with total micronuclei values being reduced by 65 % compared to controls. In conclusion, our results indicate protective effects of resveratrol at low doses against genetic damage and adverse effects induced by (131)I administration.
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Affiliation(s)
- Monireh Hedayati
- Department of Radiopharmacy, Faculty of Pharmacy and Pharmaceutical Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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96
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Kasiotis KM, Pratsinis H, Kletsas D, Haroutounian SA. Resveratrol and related stilbenes: their anti-aging and anti-angiogenic properties. Food Chem Toxicol 2013; 61:112-20. [PMID: 23567244 DOI: 10.1016/j.fct.2013.03.038] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 03/21/2013] [Accepted: 03/25/2013] [Indexed: 12/22/2022]
Abstract
Dietary stilbenes comprise a class of natural compounds that display significant biological activities of medicinal interest. Among them, their antioxidant, anti-aging and anti-angiogenesic properties are well established and subjects of numerous research endeavors. This mini-review aspires to account and present the literature reports published on research concerning various natural and synthetic stilbenes, such as trans-resveratrol. Special focus was given to most recent research findings, while the mechanisms underlying their anti-aging and anti-angiogenic effects as well as the respective signaling pathways involved were also presented and discussed.
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Affiliation(s)
- Konstantinos M Kasiotis
- Benaki Phytopathological Institute, Laboratory of Pesticides Toxicology, 8 St. Delta Street, Athens, Kifissia 14561, Greece.
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97
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Chan CM, Chang HH, Wang VC, Huang CL, Hung CF. Inhibitory effects of resveratrol on PDGF-BB-induced retinal pigment epithelial cell migration via PDGFRβ, PI3K/Akt and MAPK pathways. PLoS One 2013; 8:e56819. [PMID: 23457620 PMCID: PMC3572951 DOI: 10.1371/journal.pone.0056819] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 01/15/2013] [Indexed: 01/09/2023] Open
Abstract
Purpose In diseases such as proliferative vitreoretinopathy (PVR), proliferative diabetic retinopathy, and age-related macular degeneration, retinal pigment epithelial (RPE) cells proliferate and migrate. Moreover, platelet-derived growth factor (PDGF) has been shown to enhance proliferation and migration of RPE cells in PVR. Even resveratrol can suppress the migration and adhesion of many cell types, its effects on RPE cell migration and adhesion remain unknown. In this study, we investigated the inhibitory effects of resveratrol on RPE cell migration induced by PDGF-BB, an isoform of PDGF, and adhesion to fibronectin, a major ECM component of PVR tissue. Methods The migration of RPE cells was assessed by an electric cell-substrate impedance sensing migration assay and a Transwell migration assay. A cell viability assay was used to determine the viability of resveratrol treated-cells. The cell adhesion to fibronectin was examined by an adhesion assay. The interactions of resveratrol with PDGF-BB were analyzed by a dot binding assay. The PDGF-BB-induced signaling pathways were determined by western blotting and scratch wound healing assay. Results Resveratrol inhibited PDGF-BB-induced RPE cell migration in a dose-dependent manner, but showed no effects on ARPE19 cell adhesion to fibronectin. The cell viability assay showed no cytotoxicity of resveratrol on RPE cells and the dot binding assay revealed no direct interactions of resveratrol with PDGF-BB. Inhibitory effects of resveratrol on PDGF-BB-induced platelet-derived growth factor receptor β (PDGFRβ) and tyrosine phosphorylation and the underlying pathways of PI3K/Akt, ERK and p38 activation were found; however, resveratrol and PDGF-BB showed no effects on PDGFRα and JNK activation. Scratch wound healing assay demonstrated resveratrol and the specific inhibitors of PDGFR, PI3K, MEK or p38 suppressed PDGF-BB-induced cell migration. Conclusions These results indicate that resveratrol is an effective inhibitor of PDGF-BB-induced RPE cell migration via PDGFRβ, PI3K/Akt and MAPK pathways, but has no effects on the RPE cell adhesion to fibronectin.
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Affiliation(s)
- Chi-Ming Chan
- Department of Ophthalmology, Cardinal Tien Hospital, New Taipei City, Taiwan
- School of Medicine, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - Hsun-Hsien Chang
- Children's Hospital Informatics Program, Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Vin-Chi Wang
- School of Medicine, Fu-Jen Catholic University, New Taipei City, Taiwan
- Neurological Center, Cardinal Tien Hospital, New Taipei City, Taiwan
| | - Chuen-Lin Huang
- Medical Research Center, Cardinal Tien Hospital, New Taipei City, Taiwan
- Department of Physiology and Biophysics, Graduate Institute of Physiology, National Defense Medical Center, Taipei City, Taiwan
| | - Chi-Feng Hung
- School of Medicine, Fu-Jen Catholic University, New Taipei City, Taiwan
- Children's Hospital Informatics Program, Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Harvard Medical School, Boston, Massachusetts, United States of America
- * E-mail:
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98
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Pedroza MA, Carmona M, Alonso GL, Salinas MR, Zalacain A. Pre-bottling use of dehydrated waste grape skins to improve colour, phenolic and aroma composition of red wines. Food Chem 2013; 136:224-36. [DOI: 10.1016/j.foodchem.2012.07.110] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 06/21/2012] [Accepted: 07/25/2012] [Indexed: 11/30/2022]
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99
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Brockman DA, Chen X, Gallaher DD. Hydroxypropyl methylcellulose, a viscous soluble fiber, reduces insulin resistance and decreases fatty liver in Zucker Diabetic Fatty rats. Nutr Metab (Lond) 2012; 9:100. [PMID: 23146593 PMCID: PMC3565887 DOI: 10.1186/1743-7075-9-100] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 11/05/2012] [Indexed: 12/13/2022] Open
Abstract
Background Diets producing a high glycemic response result in exaggerated insulin secretion which induces hepatic lipogenesis, contributing to development of insulin resistance and fatty liver. Viscous dietary fibers blunt the postprandial rise in blood glucose, however their effect on type 2 diabetes and obesity are not entirely known. This study examined the effect of chronic consumption of the viscous, non-fermentable dietary fiber, hydroxypropyl methylcellulose (HPMC), on glucose control, insulin resistance and liver lipids in an obese diabetic rat model. Methods Three groups of Zucker Diabetic Fatty (ZDF) rats were fed diets containing either 5% non-viscous cellulose (control), low viscosity HPMC (LV-HPMC) or high viscosity HPMC (HV- HPMC) for six weeks. Zucker lean littermates consuming cellulose served as a negative control. Markers of glucose control, including oral glucose tolerance test, glycated hemoglobin and urinary glucose, were measured as well as adiposity and the accumulation of liver lipids. Results The HPMC diets increased the viscosity of the small intestinal contents and reduced the postprandial rise in blood glucose. The food efficiency ratio was greater with HPMC feeding compared to the obese control and urinary excretion of glucose and ketone bodies was reduced. The two HPMC groups had lower glycated hemoglobin and kidney weights and a reduced area under the curve during a glucose tolerance test, indicating improved glucose control. Epididymal fat pad weight as percent of body weight was reduced in the HV-HPMC group compared to the obese control group. The HV-HPMC group also had lower concentrations of liver lipid and cholesterol and reduced liver weight. However, HV-HPMC feeding did not affect hepatic gene expression of SREBP-1c or FAS. Muscle concentration of acylcarnitines, a lipid intermediate in fatty acid β-oxidation, was not different between the HPMC groups and obese control, suggesting no change in muscle fatty acid oxidation by HPMC. Conclusions Consumption of the viscous non-fermentable fiber HPMC decreased diabetic wasting, improved glucose control and reduced insulin resistance and fatty liver in a model of obesity with diabetes.
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Affiliation(s)
- David A Brockman
- Department of Food Science and Nutrition, University of Minnesota-Twin Cities, 1334 Eckles Avenue, St, Paul, MN 55108-1038, USA.
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100
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Franco JG, Lisboa PC, Lima NS, Amaral TAS, Peixoto-Silva N, Resende AC, Oliveira E, Passos MCF, Moura EG. Resveratrol attenuates oxidative stress and prevents steatosis and hypertension in obese rats programmed by early weaning. J Nutr Biochem 2012; 24:960-6. [PMID: 22959054 DOI: 10.1016/j.jnutbio.2012.06.019] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 06/18/2012] [Accepted: 06/21/2012] [Indexed: 12/13/2022]
Abstract
We hypothesized that resveratrol, a natural phytoalexin found in grapes, can prevent oxidative stress, obesity and its related disturbances in obese rats programmed by early weaning. Lactating Wistar rats were separated into two groups: early weaning (EW) - dams who were wrapped with a bandage to interrupt the lactation in the last 3 days of lactation; control - dams whose pups had free access to milk during all lactation. At the 150th day, EW offspring were randomly subdivided into EW+resveratrol (EW+Res) - resveratrol (30 mg/kg/day); EW+vehicle (EW) - rats that received 0.5% (w/v) aqueous methylcellulose. The control group received vehicle. Rats were treated by gavage daily for 30 days. EW offspring developed hyperphagia, higher body weight, visceral obesity, higher systolic (SBP) and diastolic blood pressure (DBP) (+15% and +20%, respectively; P<.05) and higher serum triglycerides (TG) and low-density lipoprotein but lower high-density lipoprotein (+55%, +33% and -13%, respectively; P<.05). Resveratrol normalized food intake, SBP and DBP and prevented obesity and dyslipidemia in EW+Res. EW rats had higher plasma and liver thiobarbituric-acid-reactive substances (TBARS) and lower plasma superoxide dismutase (SOD) and liver glutathione peroxidase activities (+51%, +18%, -58%, -31%, respectively; P<.05), and resveratrol normalized both plasma and liver TBARS and increased the activity of SOD and catalase in plasma. EW rats presented liver steatosis and higher liver TG, and resveratrol prevented these hepatic alterations. In conclusion, this study demonstrated a potential therapeutic use of resveratrol in preventing obesity and oxidative stress and reducing the risk of hypertension, dyslipidemia and steatosis in adult rats programmed by early weaning.
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Affiliation(s)
- Juliana G Franco
- Department of Physiological Sciences, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, Rio de Janeiro, RJ, 20550-030, Brazil
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