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Almeida H, Teixeira N, Sarmento B, Vasconcelos T. Freeze-drying cycle optimization of an amorphous solid dispersion of resveratrol. Eur J Pharm Sci 2024; 200:106855. [PMID: 39029716 DOI: 10.1016/j.ejps.2024.106855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/12/2024] [Accepted: 07/16/2024] [Indexed: 07/21/2024]
Abstract
Resveratrol (RES) has demonstrated advantages as anti-cancer, anti-inflammatory, blood sugar-lowering agent and as cardioprotective agent, among others. Despite RES therapeutic advantages its use in pharmaceutical applications is limited by its low oral bioavailability, mainly due to its poor water solubility. Formulation of poorly water-soluble compound as solid dispersion (SD) converts a crystalline into a more soluble in water amorphous drug. Lyophilization or freeze-drying is a process in which water, an organic solvent, or a co-solvent system is frozen, followed by its removal from the sample, initially by sublimation (primary drying) and then by desorption (secondary drying). This study aimed the development and optimization of a bulk freeze-drying cycle by critical process parameters assessment in each phase to prepare a RES third-generation SD, containing Eudragit E PO as hydrophilic polymer at 1:2 ratio, and Gelucire 44/14 as surfactant at 16 % (w/w) to RES, using a tert-butanol (TBA)/Acetate buffer pH 4.5 (75:25) co-solvent system. A RES third-generation SD with good appearance, not cracked, collapsed, or melted was prepared by an optimized and robust bulk lyophilization process. A physicochemical characterization confirmed the conversion of RES to the amorphous state in the SD and formulation stability after 1 month at 40 °C/75 % RH. Increased solubility and higher dissolution rate compared with pure RES were also obtained.
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Affiliation(s)
- Hugo Almeida
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge de Viterbo Ferreira, 228, 4050-313 Porto, Portugal; BIAL - Portela & Cª, S.A., Avenida da Siderurgia Nacional, 4745-457 Trofa, Portugal; INEB - Instituto Nacional de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal; I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
| | - Natália Teixeira
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge de Viterbo Ferreira, 228, 4050-313 Porto, Portugal; INEB - Instituto Nacional de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal; I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
| | - Bruno Sarmento
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge de Viterbo Ferreira, 228, 4050-313 Porto, Portugal; INEB - Instituto Nacional de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal; I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal; CESPU- IUCS, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal.
| | - Teófilo Vasconcelos
- BIAL - Portela & Cª, S.A., Avenida da Siderurgia Nacional, 4745-457 Trofa, Portugal
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SIRT1 pharmacological activation rescues vascular dysfunction and prevents thrombosis in MTHFR deficiency. Cell Mol Life Sci 2022; 79:410. [PMID: 35821533 PMCID: PMC9276577 DOI: 10.1007/s00018-022-04429-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 06/01/2022] [Accepted: 06/13/2022] [Indexed: 12/29/2022]
Abstract
Beyond well-assessed risk factors, cardiovascular events could be also associated with the presence of epigenetic and genetic alterations, such as the methylenetetrahydrofolate-reductase (MTHFR) C677T polymorphism. This gene variant is related to increased circulating levels of homocysteine (Hcy) and cardiovascular risk. However, heterozygous carriers have an augmented risk of cardiovascular accidents independently from normal Hcy levels, suggesting the presence of additional deregulated processes in MTHFR C677T carriers. Here, we hypothesize that targeting Sirtuin 1 (SIRT1) could be an alternative mechanism to control the cardiovascular risk associated to MTHFR deficiency condition. Flow Mediated Dilatation (FMD) and light transmission aggregometry assay were performed in subjects carrying MTHFR C677T allele after administration of resveratrol, the most powerful natural clinical usable compound that owns SIRT1 activating properties. MTHFR C677T carriers with normal Hcy levels revealed endothelial dysfunction and enhanced platelet aggregation associated with SIRT1 downregulation. SIRT1 activity stimulation by resveratrol intake was able to override these abnormalities without affecting Hcy levels. Impaired endothelial function, bleeding time, and wire-induced thrombus formation were rescued in a heterozygous Mthfr-deficient (Mthfr+/–) mouse model after resveratrol treatment. Using a cell-based high-throughput multiplexed screening (HTS) assay, a novel selective synthetic SIRT1 activator, namely ISIDE11, was identified. Ex vivo and in vivo treatment of Mthfr+/– mice with ISIDE11 rescues endothelial vasorelaxation and reduces wire-induced thrombus formation, effects that were abolished by SIRT1 inhibitor. Moreover, platelets from MTHFR C677T allele carriers treated with ISIDE11 showed normalization of their typical hyper-reactivity. These results candidate SIRT1 activation as a new therapeutic strategy to contain cardio and cerebrovascular events in MTHFR carriers.
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Natural Polyphenols May Normalize Hypochlorous Acid-Evoked Hemostatic Abnormalities in Human Blood. Antioxidants (Basel) 2022; 11:antiox11040779. [PMID: 35453464 PMCID: PMC9028422 DOI: 10.3390/antiox11040779] [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: 02/28/2022] [Revised: 04/12/2022] [Accepted: 04/13/2022] [Indexed: 12/04/2022] Open
Abstract
During pathogen invasion, activated neutrophils secrete myeloperoxidase (MPO), which generates high local concentrations of hypochlorous acid (HOCl), a strong antimicrobial agent. Prolonged or uncontrolled HOCl production may, however, affect hemostasis, manifesting in inhibition of platelet aggregation and thrombus formation and in elevated fibrin density and attenuated fibrinolysis. In this report, we investigated whether three plant-derived polyphenols with well-known antioxidant properties, i.e., quercetin (Que), epigallocatechin gallate (EGCG), and resveratrol (Resv), at concentrations not affecting platelet responses per se, may normalize particular aspects of hemostasis disturbed by HOCl. Specifically, Que (5–25 μM) and EGCG (10–25 μM) abolished HOCl-evoked inhibition of platelet aggregation (assessed by an optical method), while the simultaneous incubation of platelet-rich plasma with Resv (10–25 μM) enhanced the inhibitory effect of HOCl. A similar effect was observed in the case of thrombus formation under flow conditions, evaluated in whole blood by confocal microscope. When plasma samples were incubated with HOCl, a notably higher density of fibrin (recorded by confocal microscope) was detected, an effect that was efficiently normalized by Que (5–25 μM), EGCG (10–25 μM), and Resv (5–25 μM) and which corresponded with the normalization of the HOCl-evoked prolongation of fibrinolysis, measured in plasma by a turbidimetric method. In conclusion, this report indicates that supplementation with Que and EGCG may be helpful in the normalization of hemostatic abnormalities during inflammatory states associated with elevated HOCl production, while the presence of Resv enhances the inhibitory action of HOCl towards platelets.
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Resveratrol Inhibits Metabolism and Affects Blood Platelet Function in Type 2 Diabetes. Nutrients 2022; 14:nu14081633. [PMID: 35458194 PMCID: PMC9026466 DOI: 10.3390/nu14081633] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/07/2022] [Accepted: 04/12/2022] [Indexed: 11/17/2022] Open
Abstract
Chronic hyperglycemia contributes to vascular complications in diabetes. Resveratrol exerts anti-diabetic and anti-platelet action. This study aimed to evaluate the effects of resveratrol on metabolism and the function of blood platelets under static and in in vitro flow conditions in patients with type 2 diabetes. Blood obtained from 8 healthy volunteers and 10 patients with type 2 diabetes was incubated with resveratrol and perfused over collagen-coated capillaries. Isolated blood platelets were incubated with resveratrol and activated by collagen to assess platelet function, metabolism, ATP release, TXA2 production, lipid peroxidation, and gluthatione content. In the type 2 diabetes group, plasma glucose and fructosamine concentrations were significantly higher than in the healthy group. In in vitro studies, collagen-induced thrombi formation in the blood of diabetic patients was 33% higher than in the healthy group. Resveratrol reduced thrombi by over 50% in the blood of healthy and diabetic patients. TXA2 production was 47% higher in diabetic platelets than in the healthy group. Resveratrol reduced TXA2 release by 38% in healthy platelets and by 79% in diabetic platelets. Resveratrol also reduced the activities of enzymes responsible for glycolysis and oxidative metabolism in the platelets of both groups. These data indicate that the resveratrol-induced inhibition of platelet metabolism and TXA2 release may lead to a reduction of platelet function and thrombus formation in patients with type 2 diabetes. Therefore, resveratrol may be beneficial to prevent vascular complications as a future complementary treatment in aspirin-resistant diabetic patients.
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BULDUK B, OTO G, GÜNBATAR N, BULDUK M, KOÇAK Y, ELASAN S. The effect of resveratrol on toxicity caused by cisplatin in rats with experimentally created diabetes by streptozotocin. JOURNAL OF HEALTH SCIENCES AND MEDICINE 2022. [DOI: 10.32322/jhsm.999224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Wang P, Hu XX, Li YH, Gao NY, Chen GQ, Chen JL. Inhibitory effect of resveratrol on the pharmacokinetics of ticagrelor in vivo and in vitro. Can J Physiol Pharmacol 2021; 99:821-826. [PMID: 33400617 DOI: 10.1139/cjpp-2020-0512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was to evaluate the effect of resveratrol on the pharmacokinetics of ticagrelor in rats and the metabolism of ticagrelor in human cytochrome P450 (CYP) 3A4 (CYP3A4) and liver microsomes. Eighteen Sprague-Dawley rats were randomly divided into three groups: group A (control group), group B (50 mg/kg resveratrol), and group C (150 mg/kg resveratrol). After 30 min administration of resveratrol, a single dose of ticagrelor (18 mg/kg) was administered orally. The in vitro experiment was performed to examine the influence of resveratrol on ticagrelor metabolism in CYP3A4*1, human, and rat liver microsomes. Serial biological samples were assayed by validated ultra high-performance liquid chromatography - tandem mass spectrometer methods. For the in vivo study, the area under the concentration-time curve and mean peak plasma concentrations of ticagrelor in group B and C appeared to be significantly higher than the control group, while volume of distribution in terminal phase and apparent clearance of ticagrelor in group B and C were significantly decreased. For the in vitro study, resveratrol exhibited an inhibitory effect on CYP3A4*1, human and rat liver microsomes. The half-maximal inhibitory concentration values of resveratrol were 56.75 μM, 69.07 μM, and 14.22 μM, respectively. Our results indicated that resveratrol had an inhibitory effect on the metabolism of ticagrelor in vitro and in vivo. Further research should focus on the clinical combination of resveratrol with ticagrelor, and ticagrelor plasma concentration should be monitored to avoid the occurrence of adverse reaction.
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Affiliation(s)
- Peng Wang
- Jinhua People's Hospital, Jinhua, Zhejiang, China
| | - Xiao-Xia Hu
- Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Ying-Hui Li
- Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Nan-Yong Gao
- Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Guo-Quan Chen
- Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Jia-le Chen
- Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
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Vasconcelos T, Prezotti F, Araújo F, Lopes C, Loureiro A, Marques S, Sarmento B. Third-generation solid dispersion combining Soluplus and poloxamer 407 enhances the oral bioavailability of resveratrol. Int J Pharm 2021; 595:120245. [DOI: 10.1016/j.ijpharm.2021.120245] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 01/17/2023]
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Sims CA, Labiner HE, Shah SS, Baur JA. Longevity pathways in stress resistance: targeting NAD and sirtuins to treat the pathophysiology of hemorrhagic shock. GeroScience 2021; 43:1217-1228. [PMID: 33462707 DOI: 10.1007/s11357-020-00311-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/06/2020] [Indexed: 11/29/2022] Open
Abstract
Stress resistance correlates with longevity and this pattern has been exploited to help identify genes that can influence lifespan. Reciprocally, genes and pharmacological agents that have been studied primarily in the context of longevity may be an untapped resource for treating acute stresses. Here we summarize the evidence that targeting SIRT1, studied primarily in the context of longevity, can improve outcomes in hemorrhagic shock and resuscitation. Hemorrhagic shock is a potentially fatal condition that occurs when blood loss is so severe that tissues no longer receive adequate oxygen. While stabilizing the blood pressure and reperfusing tissues are necessary, re-introducing oxygen to ischemic tissues generates a burst of reactive oxygen species that can cause secondary tissue damage. Reactive oxygen species not only exacerbate the inflammatory cascade but also can directly damage mitochondria, leading to bioenergetic failure in the affected tissues. Treatments with polyphenol resveratrol and with nicotinamide adenine dinucleotide (NAD) precursors have both shown promising results in rodent models of hemorrhagic shock and resuscitation. Although a number of different mechanisms may be at play in each case, a common theme is that resveratrol and NAD both enhance the activity of SIRT1. Moreover, many of the physiologic improvements observed with resveratrol and NAD precursors are consistent with modulation of known SIRT1 targets. Because small blood vessels and limited blood volume make mice very challenging for the development of hemorrhagic shock models, there is a paucity of direct genetic evidence testing the role of SIRT1. However, the development of more robust methods in mice as well as genetic modifications in rats should allow the study of SIRT1 transgenic and KO rodents in the near future. The potential therapeutic effect of SIRT1 in hemorrhagic shock may serve as an important example supporting the value of considering "longevity" pathways in the mitigation of acute stresses.
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Affiliation(s)
- Carrie A Sims
- Division of Trauma, Critical Care, and Burn at The Ohio State University Wexner Medical Center, The Ohio State University, Faculty Office Tower, 395 12th Ave, Room 654, Columbus, OH, 43210, USA.
| | - Hanna E Labiner
- Division of Trauma, Critical Care, and Burn at The Ohio State University Wexner Medical Center, The Ohio State University, Faculty Office Tower, 395 12th Ave, Room 654, Columbus, OH, 43210, USA
| | - Sohini S Shah
- Institute for Diabetes, Obesity and Metabolism and Department of Physiology, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Blvd., SCTR 12-114, Philadelphia, PA, 19104, USA
| | - Joseph A Baur
- Institute for Diabetes, Obesity and Metabolism and Department of Physiology, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Blvd., SCTR 12-114, Philadelphia, PA, 19104, USA.
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Darvishzadeh Mahani F, Khaksari M, Raji-Amirhasani A. Renoprotective effects of estrogen on acute kidney injury: the role of SIRT1. Int Urol Nephrol 2021; 53:2299-2310. [PMID: 33458788 DOI: 10.1007/s11255-020-02761-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 12/15/2020] [Indexed: 01/23/2023]
Abstract
Acute kidney injury (AKI) is a common syndrome associated with high morbidity and mortality, despite progress in medical care. Many studies have shown that there are sex differences and different role of sex hormones particularly estrogens in kidney injury. In this regard, the incidence and rate of progression of kidney diseases are higher in men compared with women. These observations suggest that female sex hormone may be renoprotective. Silent information regulator 2 homolog 1 (SIRT1) is a histone deacetylase, which is implicated in multiple biologic processes in several organisms. In the kidneys, SIRT1 inhibits renal cell apoptosis, inflammation, and fibrosis. Studies have reported a link between SIRT1 and estrogen. In addition, SIRT1 regulates ERα expression and inhibition of SIRT1 activity suppresses ERα expression. This effect leads to inhibition of estrogen-responsive gene expression. In this text, we review the role of SIRT1 in mediating the protective effects of estrogen in the onset and progression of AKI.
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Affiliation(s)
- Fatemeh Darvishzadeh Mahani
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Khaksari
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran.
| | - Alireza Raji-Amirhasani
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
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Méndez D, Urra FA, Millas-Vargas JP, Alarcón M, Rodríguez-Lavado J, Palomo I, Trostchansky A, Araya-Maturana R, Fuentes E. Synthesis of antiplatelet ortho-carbonyl hydroquinones with differential action on platelet aggregation stimulated by collagen or TRAP-6. Eur J Med Chem 2020; 192:112187. [PMID: 32155530 DOI: 10.1016/j.ejmech.2020.112187] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/23/2020] [Accepted: 02/24/2020] [Indexed: 02/07/2023]
Abstract
Cardiovascular diseases are the leading cause of death in the world. Platelets have a major role in cardiovascular events as they bind to the damaged endothelium activating and forming thrombi. Although some hydroquinone scaffold-containing compounds have known antiplatelet activities, currently there is a lack of evidence on the antiplatelet activity of hydroquinones carrying electron attractor groups. In this work, we evaluate the antiplatelet effect of a series of ortho-carbonyl hydroquinone derivatives on cytotoxicity and function of human platelets, using collagen and thrombin receptor activator peptide 6 (TRAP-6) as agonists. Our structure-activity relationship study shows that gem-diethyl/methyl substitutions and the addition/modifications of the third ring of ortho-carbonyl hydroquinone scaffold influence on the selective index (IC50 TRAP-6/IC50 Collagen) and the inhibitory capacity of platelet aggregation. Compounds 3 and 8 inhibit agonist-induced platelet aggregation in a non-competitive manner with IC50 values of 1.77 ± 2.09 μM (collagen) and 11.88 ± 4.59 μM (TRAP-6), respectively and show no cytotoxicity. Both compounds do not affect intracellular calcium levels and mitochondrial bioenergetics. Consistently, they reduce the expression of P-selectin, activation of glycoprotein IIb/IIIa, and release of adenosine triphosphate and CD63 from platelet. Our findings may be used for further development of new drugs in platelet-related thrombosis diseases.
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Affiliation(s)
- Diego Méndez
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Félix A Urra
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile; Network for Snake Venom Research and Drug Discovery, Santiago, Chile.
| | - Juan Pablo Millas-Vargas
- Instituto de Química de Recursos Naturales, Programa de Investigación Asociativa en Cáncer Gástrico (PIA-CG), Universidad de Talca, Talca, Chile
| | - Marcelo Alarcón
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Julio Rodríguez-Lavado
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Iván Palomo
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Andrés Trostchansky
- Departamento de Bioquímica and Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Ramiro Araya-Maturana
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile; Instituto de Química de Recursos Naturales, Programa de Investigación Asociativa en Cáncer Gástrico (PIA-CG), Universidad de Talca, Talca, Chile; Network for Snake Venom Research and Drug Discovery, Santiago, Chile.
| | - Eduardo Fuentes
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile.
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Aza- and Azo-Stilbenes: Bio-Isosteric Analogs of Resveratrol. Molecules 2020; 25:molecules25030605. [PMID: 32019195 PMCID: PMC7037676 DOI: 10.3390/molecules25030605] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/21/2020] [Accepted: 01/23/2020] [Indexed: 12/14/2022] Open
Abstract
Several series of natural polyphenols are described for their biological and therapeutic potential. Natural stilbenoid polyphenols, such as trans-resveratrol, pterostilbene and piceatannol are well-known for their numerous biological activities. However, their moderate bio-availabilities, especially for trans-resveratrol, prompted numerous research groups to investigate innovative and relevant synthetic resveratrol derivatives. This review is focused on isosteric resveratrol analogs aza-stilbenes and azo-stilbenes in which the C=C bond between both aromatic rings was replaced with C=N or N=N bonds, respectively. In each series, synthetic ways will be displayed, and structural sights will be highlighted and compared with those of resveratrol. The biological activities of some of these molecules will be presented as well as their potential therapeutic applications. In some cases, structure-activity relationships will be discussed.
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Ravishankar D, Albadawi DAI, Chaggar V, Patra PH, Williams HF, Salamah M, Vaiyapuri R, Dash PR, Patel K, Watson KA, Vaiyapuri S. Isorhapontigenin, a resveratrol analogue selectively inhibits ADP-stimulated platelet activation. Eur J Pharmacol 2019; 862:172627. [PMID: 31461638 DOI: 10.1016/j.ejphar.2019.172627] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 08/17/2019] [Accepted: 08/23/2019] [Indexed: 12/13/2022]
Abstract
Isorhapontigenin is a polyphenolic compound found in Chinese herbs and grapes. It is a methoxylated analogue of a stilbenoid, resveratrol, which is well-known for its various beneficial effects including anti-platelet activity. Isorhapontigenin possesses greater oral bioavailability than resveratrol and has also been identified to possess anti-cancer and anti-inflammatory properties. However, its effects on platelet function have not been reported previously. In this study, we report the effects of isorhapontigenin on the modulation of platelet function. Isorhapontigenin was found to selectively inhibit ADP-induced platelet aggregation with an IC50 of 1.85 μM although it displayed marginal inhibition on platelet aggregation induced by other platelet agonists at 100 μM. However, resveratrol exhibited weaker inhibition on ADP-induced platelet aggregation (IC50 > 100 μM) but inhibited collagen induced platelet aggregation at 50 μM and 100 μM. Isorhapontigenin also inhibited integrin αIIbβ3 mediated inside-out and outside-in signalling and dense granule secretion in ADP-induced platelet activation but interestingly, no effect was observed on α-granule secretion. Isorhapontigenin did not exert any cytotoxicity on platelets at the concentrations of up to 100 μM. Furthermore, it did not affect haemostasis in mice at the IC50 concentration (1.85 μM). In addition, the mechanistic studies demonstrated that isorhapontigenin increased cAMP levels and VASP phosphorylation at Ser157 and decreased Akt phosphorylation. This suggests that isorhapontigenin may interfere with cAMP and PI3K signalling pathways that are associated with the P2Y12 receptor. Molecular docking studies emphasised that isorhapontigenin has greater binding affinity to P2Y12 receptor than resveratrol. Our results demonstrate that isorhapontigenin has selective inhibitory effects on ADP-stimulated platelet activation possibly via P2Y12 receptor.
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Affiliation(s)
| | | | | | | | | | | | | | - Philip R Dash
- School of Biological Sciences, University of Reading, Reading, UK
| | - Ketan Patel
- School of Biological Sciences, University of Reading, Reading, UK
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Latruffe N, Vervandier-Fasseur D. Strategic Syntheses of Vine and Wine Resveratrol Derivatives to Explore their Effects on Cell Functions and Dysfunctions. Diseases 2018; 6:diseases6040110. [PMID: 30545015 PMCID: PMC6313602 DOI: 10.3390/diseases6040110] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/06/2018] [Accepted: 12/07/2018] [Indexed: 02/07/2023] Open
Abstract
Trans-resveratrol, the most well-known polyphenolic stilbenoid, is found in grapes and accordingly in wine and it is considered to be beneficial for human health, especially towards the aging-linked cell alterations by providing numerous biological activities, such as anti-oxidant, antitumoral, antiviral, anti-inflammatory, neuroprotective, and platelet anti-aggregation properties. Although trans-resveratrol is a promising molecule, it cannot be considered as a drug, due to its weak bio-availability and fast metabolism. To overcome these weaknesses, several research teams have undertaken the synthesis of innovative trans-resveratrol derivatives, with the aim to increase its solubility in water and pharmacological activities towards cell targets. The aim of this review is to show the chronological evolution over the last 25 years of different strategies to develop more efficient trans-resveratrol derivatives towards organism physiology and, therefore, to enhance various pharmacological activities. While the literature on the development of new synthetic derivatives is impressive, this review will focus on selected strategies regarding the substitution of trans-resveratrol phenyl rings, first with hydroxy, methoxy, and halogen groups, and next with functionalized substituents. The effects on cell functions and dysfunctions of interesting resveratrol analogs will be addressed in this review.
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Affiliation(s)
- Norbert Latruffe
- Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism, EA 7270, Université de Bourgogne Franche-Comté, 6, boulevard Gabriel, 21078 DIJON CEDEX, France.
| | - Dominique Vervandier-Fasseur
- Institut de Chimie Moléculaire de l'Université de Bourgogne, ICMUB-UMR CNRS 6302, Université de Bourgogne Franche-Comté, 9, avenue A. Savary, 21078 DIJON CEDEX, France.
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Chen Q, Diao L, Song H, Zhu X. Vitis amurensis Rupr: A review of chemistry and pharmacology. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 49:111-122. [PMID: 30217258 DOI: 10.1016/j.phymed.2017.08.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 06/10/2017] [Accepted: 08/15/2017] [Indexed: 06/08/2023]
Abstract
PURPOSE Vitis amurensis Rupr. from the family Vitaceae, is a grape species native to the Asian continent. It is a highly attractive plant, used widely worldwide. It has been used for several hundred years as a traditional Chinese herb. The review focuses on the botanical description, traditional uses, phytochemistry, and the biological activities of Vitis amurensis Rupr. to evaluate its therapeutic potential uses. METHODS This review summarizes the published data concerning the botanical aspects, traditional usage, phytochemistry, and pharmacology of Vitis amurensis Rupr., to evaluate its therapeutic potential as an important source of natural compounds with effect activities that benefit human health. RESULTS Vitis amurensis Rupr. has been used for several hundred years as a traditional Chinese herb to treat stranguria, rheumatoid arthritis-associated edema, chronic hepatitis, nephritis, chronic arthritis and traumatic hemorrhage. It is a particularly rich source of the oligostilbenes, flavonoids, and anthocyanins, phytochemicals that are associated with antioxidant, anti-inflammatory, antibacterial and cardioprotective activities. Due to the presence of a multitude of bioactives, a wide array of pharmacological activities have been ascribed to different parts of this herb and individual compounds, which include antioxidant, antimicrobial, anti-inflammatory, anticancer, anti-aging, anti-melanogenic, anti-allergic and anti-viral. CONCLUSION From a health perspective, Vitis amurensis Rupr. presents excellent options for treating various diseases due to its bioactive compounds (drug candidates) that exhibit important activities or for developing new products.
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Affiliation(s)
- Qing Chen
- Department of Pharmacy, School of Pharmaceutical Science, Xiamen University, Zhuang-jin Building, Rm253 Xiang'an South Road, Xiamen 361102, Fujian, China
| | - Lichao Diao
- Department of Pharmacy, School of Pharmaceutical Science, Xiamen University, Zhuang-jin Building, Rm253 Xiang'an South Road, Xiamen 361102, Fujian, China
| | - Hua Song
- Department of Pharmacy, School of Pharmaceutical Science, Xiamen University, Zhuang-jin Building, Rm253 Xiang'an South Road, Xiamen 361102, Fujian, China
| | - Xuan Zhu
- Department of Pharmacy, School of Pharmaceutical Science, Xiamen University, Zhuang-jin Building, Rm253 Xiang'an South Road, Xiamen 361102, Fujian, China.
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Abstract
Stilbenoids are a group of naturally occurring phenolic compounds found in various plant species. They share a common backbone structure known as stilbene, but differ in the nature and position of substituents. Stilbenoids are classified as phytoalexins, which are antimicrobial compounds produced de novo in plants to protect against fungal infection and toxins. In this review, the biological effects of stilbenoids such as resveratrol, pterostilbene, gnetol and piceatannol are discussed. Stilbenoids exert various biological activities ranging from cardioprotection, neuroprotection, anti-diabetic properties, depigmentation, anti-inflammation, cancer prevention and treatment. The results presented cover a myriad of models, from cell culture to animal studies as well as clinical human trials. Although positive results were obtained in most cell culture and animal studies, further human studies are needed to substantiate beneficial effects of stilbenoids. Resveratrol remains the most widely studied stilbenoid. However, there is limited information regarding the potential of less common stilbenoids. Therefore, further research is warranted to evaluate the salutary effects of various stilbenoids.
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Affiliation(s)
- Bolanle C Akinwumi
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, 750 McDermot Avenue, Winnipeg, MB R3E 0T5, Canada.
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, 351 Taché Avenue, Winnipeg, MB R2H 2A6, Canada.
| | - Kimberly-Ann M Bordun
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, 351 Taché Avenue, Winnipeg, MB R2H 2A6, Canada.
| | - Hope D Anderson
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, 750 McDermot Avenue, Winnipeg, MB R3E 0T5, Canada.
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, 351 Taché Avenue, Winnipeg, MB R2H 2A6, Canada.
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, 753 McDermot Avenue, Winnipeg, MB R3E 0T6, Canada.
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16
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Huang CY, Ju DT, Chang CF, Muralidhar Reddy P, Velmurugan BK. A review on the effects of current chemotherapy drugs and natural agents in treating non-small cell lung cancer. Biomedicine (Taipei) 2017; 7:23. [PMID: 29130448 PMCID: PMC5682982 DOI: 10.1051/bmdcn/2017070423] [Citation(s) in RCA: 251] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 09/20/2017] [Indexed: 12/20/2022] Open
Abstract
Lung cancer is the leading cause of cancer deaths worldwide, and this makes it an attractive disease to review and possibly improve therapeutic treatment options. Surgery, radiation, chemotherapy, targeted treatments, and immunotherapy separate or in combination are commonly used to treat lung cancer. However, these treatment types may cause different side effects, and chemotherapy-based regimens appear to have reached a therapeutic plateau. Hence, effective, better-tolerated treatments are needed to address and hopefully overcome this conundrum. Recent advances have enabled biologists to better investigate the potential use of natural compounds for the treatment or control of various cancerous diseases. For the past 30 years, natural compounds have been the pillar of chemotherapy. However, only a few compounds have been tested in cancerous patients and only partial evidence is available regarding their clinical effectiveness. Herein, we review the research on using current chemotherapy drugs and natural compounds (Wortmannin and Roscovitine, Cordyceps militaris, Resveratrol, OSU03013, Myricetin, Berberine, Antroquinonol) and the beneficial effects they have on various types of cancers including non-small cell lung cancer. Based on this literature review, we propose the use of these compounds along with chemotherapy drugs in patients with advanced and/or refractory solid tumours.
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Affiliation(s)
- Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 404, Taiwan - Graduate Institute of Chinese Medical Science, China Medical University, Taichung 404, Taiwan - Department of Biological Science and Technology, Asia University, Taichung 413, Taiwan
| | - Da-Tong Ju
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Chih-Fen Chang
- Department of Internal Medicine, Division of Cardiology, Armed Forces Taichung General Hospital, Taichung 406, Taiwan
| | - P Muralidhar Reddy
- Department of Chemistry, Nizam College, Osmania University, Hyderabad-500001, India
| | - Bharath Kumar Velmurugan
- Faculty of Applied Sciences, Ton Duc Thang University, Tan Phong Ward, District 7, 700000 Ho Chi Minh City, Vietnam
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17
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Lipid lowering agents of natural origin: An account of some promising chemotypes. Eur J Med Chem 2017; 140:331-348. [DOI: 10.1016/j.ejmech.2017.09.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 04/07/2017] [Accepted: 09/12/2017] [Indexed: 12/22/2022]
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18
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Sims CA, Baur JA. The grapes and wrath: using resveratrol to treat the pathophysiology of hemorrhagic shock. Ann N Y Acad Sci 2017; 1403:70-81. [PMID: 28845517 DOI: 10.1111/nyas.13444] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 06/28/2017] [Accepted: 07/03/2017] [Indexed: 12/17/2022]
Abstract
Resveratrol, a naturally occurring polyphenol found in grapes, has been shown to reduce oxidative stress and inflammation in a variety of conditions. Recently, resveratrol has been investigated as a potential adjunct to resuscitation therapy for hemorrhagic shock-a condition characterized by tissue hypoxia, mitochondrial dysfunction, and inflammation. Although standard resuscitation restores tissue perfusion, it can exacerbate oxidative stress and organ damage. In rodent models of severe hemorrhagic shock, resveratrol mitigates reperfusion injury, preserves organ function, and improves survival. While many of these benefits can be attributed to its ability to activate sirtuin 1, resveratrol interacts with many targets that are relevant to ischemia-reperfusion. Here, we explore the probable mechanisms, potential benefits, and possible problems associated with administering resveratrol as an adjunct during resuscitation of hemorrhagic shock.
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Affiliation(s)
- Carrie A Sims
- The Trauma Center at the University of Pennsylvania, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Joseph A Baur
- Institute for Diabetes, Obesity and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.,Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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19
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Resveratrol suppresses pulmonary tumor metastasis by inhibiting platelet-mediated angiogenic responses. J Surg Res 2017. [PMID: 28629815 DOI: 10.1016/j.jss.2017.05.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND To explore the impact of Resveratrol (RSV) on the angiogenic potential of activated platelets and to elucidate the underlying mechanism. METHODS Vascular endothelial growth factor concentrations were measured by enzyme-linked immunosorbent assay. Capillary tube formation assay was used to examine the impact of RSV on the angiogenic potential of activated platelets. The levels of cyclic adenosine monophosphate and cyclic guanosine monophosphate (cGMP) in the supernatant were evaluated using corresponding enzyme-linked immunosorbent assay kits. Immunoblotting assays were used to determine the expression of vasodilator-stimulated phosphoprotein and Akt phosphorylation. A pulmonary metastasis experiment with male nude mice model was performed to test the effect of RSV on pulmonary metastasis and angiogenesis in vivo. RESULTS RSV inhibited platelets-mediated angiogenic responses induced by adenosine diphosphate (ADP)ADP through increased cGMP generation and cGMP-mediated vasodilator-stimulated phosphoprotein phosphorylation along with reduced intracellular Ca2+ mobilization. In addition, RSV attenuated the platelet secretion and angiogenic responses induced by A549 cells in vitro and suppressed A549 lung cancer metastasis and angiogenesis in nude mice. CONCLUSIONS RSV is a potential therapeutic drug for the prevention of tumor metastasis by interrupting the platelet-tumor cell amplification loop.
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Garcia L, Garcia R, Pacheco G, Sutili F, Souza RD, Mansur E, Leal I. Optimized Extraction of Resveratrol from Arachis repens Handro by Ultrasound and Microwave: A Correlation Study with the Antioxidant Properties and Phenol Contents. ScientificWorldJournal 2016; 2016:5890897. [PMID: 28116343 PMCID: PMC5223070 DOI: 10.1155/2016/5890897] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 08/02/2016] [Accepted: 08/31/2016] [Indexed: 11/18/2022] Open
Abstract
The vegetal species Arachis repens, commonly known as peanut grass, was studied and, for the first time, we detected the presence of the bioactive compound trans-resveratrol (t-RSV). We compared the efficiency of three different methodologies (conventional maceration [CM], ultrasound-assisted extractions [UAE], and microwave-assisted extractions [MAE]) concerning total phenolics (TP) and resveratrol (t-RSV) content, followed by antioxidant activity (AA) evaluation. By CM, at 1 h, the highest RSV content (1.024 ± 0.036 mg/L) and, correspondingly, the highest DPPH capture (23.90 ± 0.04%) were found. The TP contents, at 1 h, presented the highest value (27.26 ± 0.26 mg/g GAE). By the UAE, the maximum yields of TP (357.18 mg/g GAE) and RSV (2.14 mg/L), as well as, the highest AA (70.95%), were obtained by 5 min after a maceration pretreatment, on the solid-solvent ratio 1 : 40 w/v. For MAE, a central composite rotatable design (CCRD) was applied followed by the FFD design in order to evaluate the statistical effects of four independent variables on the extraction of RSV. The optimal conditions established for obtaining the highest recovery (2.516 mg/g) were 20 min; 90% MeOH aq.; 120 rpm; 60°C; and solid-solvent ratio: 1 : 35 w/v. Relevant correlations were established considering the TP and RSV contents, as well as the AA, corroborating obvious advantages of such techniques in terms of high extraction efficiency in shorter times.
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Affiliation(s)
- Leonardo Garcia
- Laboratório de Micropropagação e Transformação de Plantas, Cellular Biology Department, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Renata Garcia
- Laboratório de Micropropagação e Transformação de Plantas, Cellular Biology Department, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Georgia Pacheco
- Laboratório de Micropropagação e Transformação de Plantas, Cellular Biology Department, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Felipe Sutili
- Departamento de Engenharia de Bioprocessos e Biotecnologia, Universidade Estadual Paulista (UNESP), Campus Botucatu, 18610 307 Botucatu, SP, Brazil
| | - Rodrigo De Souza
- Biocatalysis and Organic Synthesis Group, Chemistry Institute, Federal University of Rio de Janeiro, 22941-909 Rio de Janeiro, RJ, Brazil
| | - Elisabeth Mansur
- Laboratório de Micropropagação e Transformação de Plantas, Cellular Biology Department, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Ivana Leal
- Laboratório de Produtos Naturais e Ensaios Biológicos (LaProNEB), Pharmacy Faculty, Department of Natural Products and Food, Federal University of Rio de Janeiro, 21.941-902 Rio de Janeiro, RJ, Brazil
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21
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Serum concentrations and gene expression of sirtuin 1 in healthy and slightly overweight subjects after caloric restriction or resveratrol supplementation: A randomized trial. Int J Cardiol 2016; 227:788-794. [PMID: 28029409 DOI: 10.1016/j.ijcard.2016.10.058] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/17/2016] [Accepted: 10/22/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND Sirtuin 1 (Sirt1) plays an important role in vascular biology, and influences aspects of age-dependent atherosclerosis. In animals, the sirtuin system is strongly influenced by resveratrol and caloric restriction, but its expression in humans is controversial. This study investigated the effects of resveratrol and caloric restriction on Sirt1 serum concentrations and vascular biomarkers in a healthy human population. METHODS AND RESULTS Forty-eight healthy participants (24 women) aged 55-65years were randomized to either 30days of resveratrol administration (500mg/day) or caloric restriction (1000cal/day). Blood was collected at baseline and day 30. Laboratory data analyzed were triglycerides, total cholesterol, HDL, VLDL, LDL, apolipoprotein A1, apolipoprotein B, lipoprotein (a), non-esterified fatty acids (NEFA), glucose, insulin, oxidative stress, C-reactive protein, and Sirt1. Expression of the Sirt1 gene was analyzed using real-time PCR. Caloric restriction diminished the abdominal circumference and improved the lipid profile, but not resveratrol intervention. Resveratrol and caloric restriction increased serum concentrations of Sirt1, from 1.06±0.71 to 5.75±2.98ng/mL; p<0.0001, and from 1.65±1.81 to 5.80±2.23ng/mL; p<0.0001, respectively. Sirt1 increased in women and men in both interventions. On the other hand expression of Sirt1 mRNA was not different after caloric restriction and resveratrol treatment. CONCLUSIONS Caloric restriction and resveratrol significantly increased plasma concentrations of Sirt1. The long-term impact of these interventions on atherosclerosis should be assessed.
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22
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Aboonabi A, Singh I. The effectiveness of antioxidant therapy in aspirin resistance, diabetes population for prevention of thrombosis. Biomed Pharmacother 2016; 83:277-282. [DOI: 10.1016/j.biopha.2016.06.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 06/12/2016] [Accepted: 06/25/2016] [Indexed: 12/20/2022] Open
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Baek SH, Ko JH, Lee H, Jung J, Kong M, Lee JW, Lee J, Chinnathambi A, Zayed ME, Alharbi SA, Lee SG, Shim BS, Sethi G, Kim SH, Yang WM, Um JY, Ahn KS. Resveratrol inhibits STAT3 signaling pathway through the induction of SOCS-1: Role in apoptosis induction and radiosensitization in head and neck tumor cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:566-577. [PMID: 27064016 DOI: 10.1016/j.phymed.2016.02.011] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 02/12/2016] [Accepted: 02/15/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Signal transducer and activator of transcription 3 (STAT3) is persistently activated in squamous cell carcinoma of the head and neck (SCCHN) and can cause uncontrolled cellular proliferation and division. HYPOTHESIS Thus, its targeted abrogation could be an effective strategy to reduce the risk of SCCHN. Resveratrol is known for its anti-cancer efficacy in a variety of cancer models. STUDY DESIGN The effect resveratrol on STAT3 activation, associated protein kinases, phosphatases, cellular proliferation and apoptosis was investigated. METHODS We evaluated the effect of resveratrol on STAT3 signaling cascade and its regulated functional responses in SCCHN cells. RESULTS We found that HN3 and FaDu cells expressed strongly phosphorylated STAT3 on both tyrosine 705 and serine 727 residues as compared to other SCCHN cells. The phosphorylation was completely suppressed by resveratrol in FaDu cells, but not substantially in HN3 cells. STAT3 suppression was mediated through the inhibition of activation of upstream JAK2, but not of JAK1 and Src kinases. Treatment with the protein tyrosine phosphatase (PTP) inhibitor pervanadate reversed the resveratrol-induced down-regulation of STAT3, thereby indicating a critical role for a PTP. We also found that resveratrol induced the expression of the SOCS-1 protein and mRNA. Further, deletion of SOCS-1 gene by siRNA suppressed the induction of SOCS-1, and reversed the inhibition of STAT3 activation. Resveratrol down-regulated various STAT3-regulated gene products, inhibited proliferation, invasion, as well as induced the cell accumulation in the sub-G1 phase and caused apoptosis. Beside, this phytoalexin also exhibited the enhancement of apoptosis when combined with ionizing radiation treatment. CONCLUSION Our results suggest that resveratrol blocks STAT3 signaling pathway through induction of SOCS-1, thus attenuating STAT3 phosphorylation and proliferation in SCCHN cells.
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Affiliation(s)
- Seung Ho Baek
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Republic of Korea
| | - Jeong-Hyeon Ko
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Republic of Korea
| | - Hanwool Lee
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Republic of Korea
| | - Jinhong Jung
- Department of Radiation Oncology, Kyung Hee University Medical Center, Kyung Hee University School of Medicine, 23 Kyungheedae-ro, Dongdaemoon-gu, Seoul 130-872, Republic of Korea
| | - Moonkyoo Kong
- Department of Radiation Oncology, Kyung Hee University Medical Center, Kyung Hee University School of Medicine, 23 Kyungheedae-ro, Dongdaemoon-gu, Seoul 130-872, Republic of Korea
| | - Jung-woo Lee
- Department of Oral & Maxillofacial Surgery, Kyung Hee University Dental Hospital, Kyung Hee University School of Dentistry, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-872, Republic of Korea
| | - Junhee Lee
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Republic of Korea
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - M E Zayed
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Seok-Geun Lee
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Republic of Korea
| | - Bum Sang Shim
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Republic of Korea
| | - Gautam Sethi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore
| | - Sung-Hoon Kim
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Republic of Korea
| | - Woong Mo Yang
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Republic of Korea
| | - Jae-Young Um
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Republic of Korea
| | - Kwang Seok Ahn
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Republic of Korea.
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Jayakumar T, Yang CH, Geraldine P, Yen TL, Sheu JR. The pharmacodynamics of antiplatelet compounds in thrombosis treatment. Expert Opin Drug Metab Toxicol 2016; 12:615-32. [DOI: 10.1080/17425255.2016.1176141] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Thanasekaran Jayakumar
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chih-Hao Yang
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Pitchairaj Geraldine
- Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, India
| | - Ting-Lin Yen
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
| | - Joen-Rong Sheu
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- College of Medicine, Taipei Medical University, Taipei, Taiwan
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25
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Xu D, Li Y, Zhang B, Wang Y, Liu Y, Luo Y, Niu W, Dong M, Liu M, Dong H, Zhao P, Li Z. Resveratrol alleviate hypoxic pulmonary hypertension via anti-inflammation and anti-oxidant pathways in rats. Int J Med Sci 2016; 13:942-954. [PMID: 27994500 PMCID: PMC5165688 DOI: 10.7150/ijms.16810] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 09/27/2016] [Indexed: 01/10/2023] Open
Abstract
Resveratrol, a plant-derived polyphenolic compound and a phytoestrogen, was shown to possess multiple protective effects including anti-inflammatory response and anti-oxidative stress. Hypoxic pulmonary hypertension (HPH) is a progressive disease characterized by sustained vascular resistance and marked pulmonary vascular remodeling. The exact mechanisms of HPH are still unclear, but inflammatory response and oxidative stress was demonstrated to participate in the progression of HPH. The present study was designed to investigate the effects of resveratrol on HPH development. Sprague-Dawley rats were challenged by hypoxia exposure for 28 days to mimic hypoxic pulmonary hypertension along with treating resveratrol (40 mg/kg/day). Hemodynamic and pulmonary pathomorphology data were then obtained, and the anti-proliferation effect of resveratrol was determined by in vitro assays. The anti-inflammation and anti-oxidative effects of resveratrol were investigated in vivo and in vitro. The present study showed that resveratrol treatment alleviated right ventricular systolic pressure and pulmonary arterial remodeling induced by hypoxia. In vitro experiments showed that resveratrol notably inhibited proliferation of pulmonary arterial smooth muscle cells in an ER-independent manner. Data showed that resveratrol administration inhibited HIF-1 α expression in vivo and in vitro, suppressed inflammatory cells infiltration around the pulmonary arteries, and decreased ROS production induced by hypoxia in PAMSCs. The inflammatory cytokines' mRNA levels of tumor necrosis factor α, interleukin 6, and interleukin 1β were all suppressed by resveratrol treatment. The in vitro assays showed that resveratrol inhibited the expression of HIF-1 α via suppressing the MAPK/ERK1 and PI3K/AKT pathways. The antioxidant axis of Nuclear factor erythroid-2 related factor 2/ Thioredoxin 1 (Nrf-2/Trx-1) was up-regulated both in lung tissues and in cultured PASMCs. In general, the current study demonstrated that resveratrol may prevent pulmonary hypertension through its anti-proliferation, anti-inflammation and antioxidant effects. Hence, the present data may offer novel targets and promising pharmacological perspective for treating hypoxic pulmonary hypertension.
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Affiliation(s)
- Dunquan Xu
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China.; Clinical laboratory, the Eighth Hospital of PLA, Xigaze, 857000, PR China
| | - Yan Li
- Physical Examination Center of Beijing Military Region General Hospital, Beijing, 100700, PR China
| | - Bo Zhang
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China
| | - Yanxia Wang
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China
| | - Yi Liu
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China
| | - Ying Luo
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China
| | - Wen Niu
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China
| | - Mingqing Dong
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China
| | - Manling Liu
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China
| | - Haiying Dong
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China
| | - Pengtao Zhao
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China
| | - Zhichao Li
- Department of Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China
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Riccioni G, Gammone MA, Tettamanti G, Bergante S, Pluchinotta FR, D'Orazio N. Resveratrol and anti-atherogenic effects. Int J Food Sci Nutr 2015; 66:603-10. [PMID: 26306466 DOI: 10.3109/09637486.2015.1077796] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The role of inflammation and oxidative stress in atherosclerosis development has been increasingly well recognized over the past decade. Inflammation has a significant role at all stages of atherosclerosis, including initiation, progression and plaque formation. Resveratrol is a naturally occurring polyphenolic compound found in grape products, berry fruits and red wine. Its ability to behave therapeutically as a component of red wine has attracted wide attention. Accumulating evidence suggests that it is a highly pleiotropic molecule that modulates numerous targets and molecular functions. Epidemiological studies indicate that the Mediterranean diet, rich in resveratrol, is associated with a reduced risk of atherosclerosis. Resveratrol is believed to decrease circulating low-density lipoprotein cholesterol levels, reduce cardiovascular disease risk; it reduces lipid peroxidation, platelet aggregation and oxidative stress. Resveratrol is considered a safe compound, since no significant toxic effects have been demonstrated after administration of a broad range of concentrations, and an effective anti-atherogenic agent.
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Affiliation(s)
- Graziano Riccioni
- a Cardiology Unit, San Camillo de Lellis Hospital , Manfredonia , Foggia , Italy
| | - Maria Alessandra Gammone
- b Clinical and Human Nutrition Unit, Department of Oral Medical and Biotechnological Sciences, University "G. D'Annunzio" , Chieti , Italy and
| | - Guido Tettamanti
- c Department of Pediatric Cardiovascular Surgery , IRCCS San Donato Milanese Hospital , San Donato Milanese , Italy
| | - Sonia Bergante
- c Department of Pediatric Cardiovascular Surgery , IRCCS San Donato Milanese Hospital , San Donato Milanese , Italy
| | - Francesca Romana Pluchinotta
- c Department of Pediatric Cardiovascular Surgery , IRCCS San Donato Milanese Hospital , San Donato Milanese , Italy
| | - Nicolantonio D'Orazio
- b Clinical and Human Nutrition Unit, Department of Oral Medical and Biotechnological Sciences, University "G. D'Annunzio" , Chieti , Italy and
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Malhotra A, Bath S, Elbarbry F. An Organ System Approach to Explore the Antioxidative, Anti-Inflammatory, and Cytoprotective Actions of Resveratrol. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:803971. [PMID: 26180596 PMCID: PMC4477248 DOI: 10.1155/2015/803971] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 12/16/2014] [Accepted: 12/16/2014] [Indexed: 12/25/2022]
Abstract
Resveratrol is a phenolic phytochemical, with a stilbene backbone, derived from edible plants such as grape and peanut. It is a bioactive molecule with physiological effects on multiple organ systems. Its effects range from the neuroprotective to the nephroprotective, including cardiovascular, neuronal, and antineoplastic responses as a part of its broad spectrum of action. In this review, we examine the effects of resveratrol on the following organ systems: the central nervous system, including neurological pathology such as Parkinson's and Alzheimer's disease; the cardiovascular system, including disorders such as atherosclerosis, ischemia-reperfusion injury, and cardiomyocyte hypertrophy; the kidneys, including primary and secondary nephropathies and nephrolithiasis; multiple forms of cancer; and metabolic syndromes including diabetes. We emphasize commonalities in extracellular matrix protein alterations and intracellular signal transduction system induction following resveratrol treatment. We summarize the known anti-inflammatory, antioxidative, and cytoprotective effects of resveratrol across disparate organ systems. Additionally, we analyze the available literature regarding the pharmacokinetics of resveratrol formulations used in these studies. Finally, we critically examine select clinical trials documenting a lack of effect following resveratrol treatment.
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Affiliation(s)
- Ashim Malhotra
- School of Pharmacy, Pacific University, 222 SE 8th Avenue, Suite 451, Hillsboro, OR 97123, USA
| | - Sundeep Bath
- School of Pharmacy, Pacific University, 222 SE 8th Avenue, Suite 451, Hillsboro, OR 97123, USA
| | - Fawzy Elbarbry
- School of Pharmacy, Pacific University, 222 SE 8th Avenue, Suite 451, Hillsboro, OR 97123, USA
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Preclinical and clinical evidence for the role of resveratrol in the treatment of cardiovascular diseases. Biochim Biophys Acta Mol Basis Dis 2015; 1852:1155-77. [DOI: 10.1016/j.bbadis.2014.10.016] [Citation(s) in RCA: 211] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 10/24/2014] [Accepted: 10/27/2014] [Indexed: 12/12/2022]
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Abstract
Oxidative stress is considered to play an important role in the pathogenesis of diabetes-induced cardiovascular disease (CVD), which is invariably associated with abnormal blood lipid profile, insulin resistance and metabolic syndrome. Stress, smoking, high saturated fat intake as well as low fruit and vegetable intakes have been shown to increase oxidative stress and hyperlipidemia, which increase the predisposition of diabetic subjects to atherosclerosis, stroke and coronary heart disease. The oxidation of low-density lipoprotein by oxidative stress is essential for the development of atherosclerosis, and the reduction in oxidative stress as well as blood glucose and cholesterol is considered critical for the prevention of diabetes-induced CVD. Although epidemiological studies have demonstrated that vitamin C and vitamin E decrease the incidence of coronary heart disease, different clinical trials have failed to support the beneficial effect of these antioxidants. Nonetheless, it has been suggested that natural forms of these vitamins may be more efficacious than synthetic vitamins, and this may explain the inconsistencies in results. Antioxidants, N-acetyl-L-cysteine and resveratrol, have also been shown to attenuate the diabetes-induced cardiovascular complications. It has been indicated that the antioxidant therapy may be effective in a prevention strategy rather than as a treatment for CVD. The evidence presented here supports the view that cardiovascular complications in diabetes may be induced by oxidative stress and appropriate antioxidant therapy may be promising for attenuating the progression of diabetes-induced CVD.
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Inhibition of cancer derived cell lines proliferation by synthesized hydroxylated stilbenes and new ferrocenyl-stilbene analogs. Comparison with resveratrol. Molecules 2014; 19:7850-68. [PMID: 24962390 PMCID: PMC6271691 DOI: 10.3390/molecules19067850] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 05/27/2014] [Accepted: 05/28/2014] [Indexed: 01/06/2023] Open
Abstract
Further advances in understanding the mechanism of action of resveratrol and its application require new analogs to identify the structural determinants for the cell proliferation inhibition potency. Therefore, we synthesized new trans-resveratrol derivatives by using the Wittig and Heck methods, thus modifying the hydroxylation and methoxylation patterns of the parent molecule. Moreover, we also synthesized new ferrocenylstilbene analogs by using an original protective group in the Wittig procedure. By performing cell proliferation assays we observed that the resveratrol derivatives show inhibition on the human colorectal tumor SW480 cell line. On the other hand, cell viability/cytotoxicity assays showed a weaker effects on the human hepatoblastoma HepG2 cell line. Importantly, the lack of effect on non-tumor cells (IEC18 intestinal epithelium cells) demonstrates the selectivity of these molecules for cancer cells. Here, we show that the numbers and positions of hydroxy and methoxy groups are crucial for the inhibition efficacy. In addition, the presence of at least one phenolic group is essential for the antitumoral activity. Moreover, in the series of ferrocenylstilbene analogs, the presence of a hidden phenolic function allows for a better solubilization in the cellular environment and significantly increases the antitumoral activity.
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Anderson JW, Waters AR. Raisin consumption by humans: effects on glycemia and insulinemia and cardiovascular risk factors. J Food Sci 2014; 78 Suppl 1:A11-7. [PMID: 23789931 DOI: 10.1111/1750-3841.12071] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Accepted: 12/09/2013] [Indexed: 12/27/2022]
Abstract
Raisins are widely recommended as good foods and preferred snacks because of their nutrient content. They are rich in dietary fiber, potassium, and many health-promoting phytonutrients and antioxidants. Raisins have a high dietary fiber score. Laboratory studies document that raisins rank in the upper quartile of foods for antioxidant content. Clinical research related to the potential health benefits of raisins has intensified over the past 10 y. Much of this research has focused on blood glucose and insulin responses to raisins compared to other foods or snacks. Meal studies indicate that raisins have a low to moderate glycemic index and a low insulinemic index. Longer term studies suggest that customary intake of raisins is associated with lower postprandial blood glucose values than with equicaloric control foods. Cross-sectional studies suggest that higher levels of dried fruit consumption are associated with lower systolic and diastolic blood pressure than seen with minimal dried fruit use. One clinical study documents that raisin intake over 12 wk is accompanied by a significant reduction in blood pressure. Preliminary results indicate that raisins are associated with increased satiety and decreased food consumption over an 8-h period, but the potential benefits of raisins for weight loss have not been assessed. Raisin intake is accompanied by reductions in serum low-density lipoprotein cholesterol, triglycerides, and oxidized low-density cholesterol values. Thus, raisins have the potential to significantly reduce the risk for developing diabetes or cardiovascular disease.
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Affiliation(s)
- James W Anderson
- University of Kentucky, 506 Knapp Farm Drive, Hermitage, TN 37076, U.S.A.
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Ji M, Li Q, Ji H, Lou H. Investigation of the distribution and season regularity of resveratrol in Vitis amurensis via HPLC–DAD–MS/MS. Food Chem 2014; 142:61-5. [DOI: 10.1016/j.foodchem.2013.06.131] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 06/22/2013] [Accepted: 06/30/2013] [Indexed: 11/29/2022]
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Lam YY, Peterson CM, Ravussin E. Resveratrol vs. calorie restriction: data from rodents to humans. Exp Gerontol 2013; 48:1018-24. [PMID: 23624181 DOI: 10.1016/j.exger.2013.04.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 04/17/2013] [Accepted: 04/18/2013] [Indexed: 01/19/2023]
Abstract
Calorie restriction extends lifespan and confers metabolic benefits similar to the effect of lifestyle interventions. Poor compliance to long-term dietary restriction, however, hinders the success of this approach. Evidence is now persuasive for a role of resveratrol supplementation (a polyphenol in red grapes) as potential alternative to calorie restriction. This review summarizes the latest literature on the effects and the molecular mechanisms by which calorie restriction and resveratrol confer health benefits. Resveratrol activates SIRT1 and the associated improvement in energy utilization and insulin sensitivity closely resembles the benefits of calorie restriction. Current data largely support resveratrol as a potential calorie restriction mimetic to improve metabolic and probably functional health. Future studies which characterize the bioavailability and efficacy of resveratrol supplementation are critical to provide evidence for its long-term health benefits.
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Affiliation(s)
- Yan Y Lam
- John S McIlhenny Skeletal Muscle Physiology Laboratory, Pennington Biomedical Research Center, 6400 Perkins Rd, Baton Rouge, LA 70808, United States.
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Kumar D, Kumar S, Gupta J, Arya R, Gupta A. A review on chemical and biological properties of Cayratia trifolia Linn. (Vitaceae). Pharmacogn Rev 2012; 5:184-8. [PMID: 22279376 PMCID: PMC3263053 DOI: 10.4103/0973-7847.91117] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2011] [Revised: 07/18/2011] [Accepted: 12/23/2011] [Indexed: 01/20/2023] Open
Abstract
Cayratia trifolia Linn. Domin Syn. Vitis trifolia (Family: Vitaceae) is commonly known as Fox grape in English; Amlabel, Ramchana in Hindi and Amlavetash in Sanskrit. It is native to India, Asia and Australia. It is a perennial climber having trifoliated leaves with 2-3 cm long petioles and ovate to oblong-ovate leaflets. Flowers are small greenish white and brown in color. Fruits are fleshy, juicy, dark purple or black, nearly spherical, about 1 cm in diameter. It is found throughout the hills in India. This perennial climber is also found in the hotter part of India from Jammu and Rajasthan to Assam extending into the peninusular India upto 600 m height. Whole plant of Cayratia trifolia has been reported to contain yellow waxy oil, steroids/terpenoids, flavonoids, tannins upon preliminary phytochemical screening. Leaves contain stilbenes (piceid, reveratrol, viniferin, ampelopsin). Stem, leaves, roots are reported to possess hydrocyanic acid, delphinidin and several flavonoids such as cyanidin is reported in the leaves. This plant also contains kaempferol, myricetin, quercetin, triterpenes and epifriedelanol. Infusion of seeds along with extract of tubers is traditionally given orally to diabetic patients to check sugar level of blood. Paste of tuberous is applied on the affected part in the treatment of snake bite. Whole plant is used as diuretic, in tumors, neuralgia and splenopathy. Its climbers wrapped around the neck of frantic bullock and poultice of leaves are used to yoke sores of bullock. The bark extract shows the antiviral, antibacterial, antiprotozoal, hypoglycemic, anticancer and diuretic activity. This article focuses on the upgraded review on chemical and biological properties of Cayratia trifolia Linn. and triggers further investigation on this plant.
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Affiliation(s)
- Dinesh Kumar
- Division of Pharmacognsoy and Phytochemistry, Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra, India
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Gencel VB, Benjamin MM, Bahou SN, Khalil RA. Vascular effects of phytoestrogens and alternative menopausal hormone therapy in cardiovascular disease. Mini Rev Med Chem 2012; 12:149-74. [PMID: 22070687 DOI: 10.2174/138955712798995020] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 07/27/2011] [Accepted: 08/05/2011] [Indexed: 01/10/2023]
Abstract
Phytoestrogens are estrogenic compounds of plant origin classified into different groups including isoflavones, lignans, coumestans and stilbenes. Isoflavones such as genistein and daidzein are the most studied and most potent phytoestrogens, and are found mainly in soy based foods. The effects of phytoestrogens are partly mediated via estrogen receptors (ERs): ERα, ERβ and possibly GPER. The interaction of phytoestrogens with ERs is thought to induce both genomic and non-genomic effects in many tissues including the vasculature. Some phytoestrogens such as genistein have additional non-ER-mediated effects involving signaling pathways such as tyrosine kinase. Experimental studies have shown beneficial effects of phytoestrogens on endothelial cells, vascular smooth muscle, and extracellular matrix. Phytoestrogens may also affect other pathophysiologic vascular processes such as lipid profile, angiogenesis, inflammation, tissue damage by reactive oxygen species, and these effects could delay the progression of atherosclerosis. As recent clinical trials showed no vascular benefits or even increased risk of cardiovascular disease (CVD) and CV events with conventional menopausal hormone therapy (MHT), phytoestrogens are being considered as alternatives to pharmacologic MHT. Epidemiological studies in the Far East population suggest that dietary intake of phytoestrogens may contribute to the decreased incidence of postmenopausal CVD and thromboembolic events. Also, the WHO-CARDIAC study supported that consumption of high soybean diet is associated with lower mortalities from coronary artery disease. However, as with estrogen, there has been some discrepancy between the experimental studies demonstrating the vascular benefits of phytoestrogens and the data from clinical trials. This is likely because the phytoestrogens clinical trials have been limited in many aspects including the number of participants enrolled, the clinical end points investigated, and the lack of long-term follow-up. Further investigation of the cellular mechanisms underlying the vascular effects of phytoestrogens and careful evaluation of the epidemiological evidence and clinical trials of their potential vascular benefits would put forward the use of phytoestrogens as an alternative MHT for the relief of menopausal symptoms and amelioration of postmenopausal CVD.
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Affiliation(s)
- V B Gencel
- Vascular Surgery Research Laboratory, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02115, USA
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Voloshyna I, Hussaini SM, Reiss AB. Resveratrol in Cholesterol Metabolism and Atherosclerosis. J Med Food 2012; 15:763-73. [DOI: 10.1089/jmf.2012.0025] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Iryna Voloshyna
- Winthrop Research Institute and Department of Medicine, Winthrop-University Hospital, Mineola, New York, USA
| | - Syed M. Hussaini
- Winthrop Research Institute and Department of Medicine, Winthrop-University Hospital, Mineola, New York, USA
| | - Allison B. Reiss
- Winthrop Research Institute and Department of Medicine, Winthrop-University Hospital, Mineola, New York, USA
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Abstract
Although the increased lifespan of our populations illustrates the success of modern medicine, the risk of developing many diseases increases exponentially with old age. Caloric restriction is known to retard ageing and delay functional decline as well as the onset of disease in most organisms. Studies have implicated the sirtuins (SIRT1-SIRT7) as mediators of key effects of caloric restriction during ageing. Two unrelated molecules that have been shown to increase SIRT1 activity in some settings, resveratrol and SRT1720, are excellent protectors against metabolic stress in mammals, making SIRT1 a potentially appealing target for therapeutic interventions. This Review covers the current status and controversies surrounding the potential of sirtuins as novel pharmacological targets, with a focus on SIRT1.
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Chalal M, Vervandier-Fasseur D, Meunier P, Cattey H, Hierso JC. Syntheses of polyfunctionalized resveratrol derivatives using Wittig and Heck protocols. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Li H, Xia N, Förstermann U. Cardiovascular effects and molecular targets of resveratrol. Nitric Oxide 2012; 26:102-10. [DOI: 10.1016/j.niox.2011.12.006] [Citation(s) in RCA: 221] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Revised: 12/11/2011] [Accepted: 12/21/2011] [Indexed: 11/29/2022]
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de Gaetano G, Santimone I, Gianfagna F, Iacoviello L, Cerletti C. Variability of platelet indices and function: acquired and genetic factors. Handb Exp Pharmacol 2012:395-434. [PMID: 22918740 DOI: 10.1007/978-3-642-29423-5_16] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Each individual has an inherent variable risk of bleeding linked to genetic or acquired abnormal platelet number or platelet dysfunction. In contrast, it is less obvious that the variability of platelet phenotypes (number, mean platelet volume, function) may contribute to the variable individual risk of thrombosis. Interindividual variability of platelet indices or function may be either due to acquired factors, such as age, sex, metabolic variables, smoke, dietary habits, and ongoing inflammation, or due to genetic factors. Acquired variables explain a small portion of the heterogeneity of platelet parameters. Genetic factors, instead, appear to play a major role, although a consistent portion of such a genetic variance has not yet been attributed to any specific genetic factor, possibly due to the high number of DNA loci potentially involved and to the limited effect size of each individual SNP. A portion of variance remains thus unexplained, also due to variability of test performance. A major contradiction in present platelet knowledge is, indeed, the difficulty to reconcile the universally accepted importance of platelet indices or function and the lack of reliable platelet parameters in cardiovascular risk prediction models. Trials on antiplatelet drugs were generally designed to select a homogeneous sample, whose results could be applied to an "average subject," tending to exclude the deviation/extreme values. As the current indications for antiplatelet treatment in primary or secondary prevention of ischemic vascular disease still derive from the results of such clinical trials where platelet function and its variability was not investigated, we cannot at present rely upon any current platelet test to either initiate, or monitor, or modify or stop treatment with any antiplatelet drug. Evidence is, however, increasing that traditional platelet aggregometry and other more recently developed platelet function assays could be useful to optimize antiplatelet therapy and to predict major adverse cardiac events.The observation of interindividual differences in platelet response to antiplatelet drugs has enlarged the spectrum and the possible clinical relevance of the variability of platelet indices or function. The development of "personalized medicine" will benefit from the concepts discussed in this chapter.
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Affiliation(s)
- Giovanni de Gaetano
- Research Laboratories, Fondazione di Ricerca e Cura "Giovanni Paolo II", Università Cattolica, Largo Gemelli, 1, 86100, Campobasso, Italy.
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Zhang J, YU WJ, Yang N, Sun L. Interaction between resveratrol and thrombin and its biological implication. Int J Food Sci Nutr 2011; 62:814-20. [DOI: 10.3109/09637486.2011.581651] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Bae S, Lee EM, Cha HJ, Kim K, Yoon Y, Lee H, Kim J, Kim YJ, Lee HG, Jeung HK, Min YH, An S. Resveratrol alters microRNA expression profiles in A549 human non-small cell lung cancer cells. Mol Cells 2011; 32:243-9. [PMID: 21887509 PMCID: PMC3887628 DOI: 10.1007/s10059-011-1037-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 06/14/2011] [Accepted: 06/22/2011] [Indexed: 12/11/2022] Open
Abstract
Resveratrol is a plant phenolic phytoalexin that has been reported to have antitumor properties in several types of cancers. In particular, several studies have suggested that resveratrol exerts antiproliferative effects against A549 human non-small cell lung cancer cells; however, its mechanism of action remains incompletely understood. Deregulation of microRNAs (miRNAs), a class of small, noncoding, regulatory RNA molecules involved in gene expression, is strongly correlated with lung cancer. In this study, we demonstrated that resveratrol treatment altered miRNA expression in A549 cells. Using microarray analysis, we identified 71 miRNAs exhibiting greater than 2-fold expression changes in resveratrol-treated cells relative to their expression levels in untreated cells. Furthermore, we identified target genes related to apoptosis, cell cycle regulation, cell proliferation, and differentiation using a miRNA target-prediction program. In conclusion, our data demonstrate that resveratrol induces considerable changes in the miRNA expression profiles of A549 cells, suggesting a novel approach for studying the anticancer mechanisms of resveratrol.
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Affiliation(s)
- Seunghee Bae
- Functional Genoproteome Research Centre, Konkuk University, Seoul 143-701, Korea
| | - Eun-Mee Lee
- Functional Genoproteome Research Centre, Konkuk University, Seoul 143-701, Korea
| | - Hwa Jun Cha
- Functional Genoproteome Research Centre, Konkuk University, Seoul 143-701, Korea
| | - Karam Kim
- Functional Genoproteome Research Centre, Konkuk University, Seoul 143-701, Korea
| | - Yeongmin Yoon
- Functional Genoproteome Research Centre, Konkuk University, Seoul 143-701, Korea
- LIFEnGENE, Inc., Konkuk University, Seoul 143-701, Korea
| | - Hyunjin Lee
- Functional Genoproteome Research Centre, Konkuk University, Seoul 143-701, Korea
- LIFEnGENE, Inc., Konkuk University, Seoul 143-701, Korea
| | - Jongran Kim
- Functional Genoproteome Research Centre, Konkuk University, Seoul 143-701, Korea
- LIFEnGENE, Inc., Konkuk University, Seoul 143-701, Korea
| | - Yu-Jeong Kim
- Department of Beauty Design, Yeoju Institute of Technology, Yeoju 469-705, Korea
| | - Hong Ghi Lee
- Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 143-729, Korea
| | - Hoi-Kyung Jeung
- Department of Internal Medicine and Center for Chronic Metabolic Disease, Yonsei University College of Medicine, Seoul 102-752, Korea
| | - Yoo Hong Min
- Department of Internal Medicine and Center for Chronic Metabolic Disease, Yonsei University College of Medicine, Seoul 102-752, Korea
| | - Sungkwan An
- Functional Genoproteome Research Centre, Konkuk University, Seoul 143-701, Korea
- LIFEnGENE, Inc., Konkuk University, Seoul 143-701, Korea
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Colak Y, Ozturk O, Senates E, Tuncer I, Yorulmaz E, Adali G, Doganay L, Enc FY. SIRT1 as a potential therapeutic target for treatment of nonalcoholic fatty liver disease. Med Sci Monit 2011; 17:HY5-9. [PMID: 21525818 PMCID: PMC3539588 DOI: 10.12659/msm.881749] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Sirtuins are members of the silent information regulator 2 (Sir2) family, a group of Class III histone/protein deacetylases. There are 7 different sirtuins in mammals (SIRT1-7), of which SIRT1 is the best known and most studied. SIRT1 is responsible for the regulation of protein activation by means of deacetylating a variety of proteins that play important roles in the pathophysiology of metabolic diseases. Recently, it has been shown that SIRT1 plays key roles in the regulation of lipid and glucose homeostasis, control of insulin secretion and sensitivity, antiinflammatory effects, control of oxidative stress and the improvements in endothelial function that result due to increased mitochondrial biogenesis and β-oxidation capacity. Nonalcoholic fatty liver disease (NAFLD) is currently the most common liver disease, and it has been accepted as the hepatic component of metabolic syndrome. Recent studies have shown that SIRT expression in the liver is significantly decreased in an NAFLD model of rats fed a high-fat diet, and moderate SIRT1 overexpression protects mice from developing NAFLD. In addition to resveratrol, a natural SIRT1 activator, small-molecule pharmacologic SIRT1 activators have positive effects on metabolic diseases. These effects are particularly promising in the case of diabetes mellitus, for which phase studies are currently being performed. With this information, we hypothesized that the pharmacologic activation of SIRT1, which has been implicated in the pathogenesis of NAFLD, will be a potential therapeutic target for treating NAFLD. In this paper, we review the metabolic effects of SIRT1 and its association with the pathophysiology of NAFLD.
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Affiliation(s)
- Yasar Colak
- Department of Gastroenterology, S. B. Goztepe Education and Research Hospital, Istanbul, Turkey.
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Abstract
Until the middle of the last decade, few people had heard of microRNAs (miRNAs), 21- to 23-nucleotide conserved RNAs. MicroRNAs represent a new paradigm because they regulate most physiological processes and thus have immense potential for medical advancement. Resveratrol, a red wine-derived polyphenolic compound, has been shown to have significant effects in various disease models, such as cardioprotection in ischemic heart, diabetes, and chemoprevention of cancers. The targets of resveratrol include various pathways and molecules, such as sirtuins, FOXOs, and autophagy. The successful application of resveratrol lies in understanding its mechanisms of action through direct and indirect interactions with pathways, including miRNAs. For example, a unique miRNA footprint is present in the heart treated with resveratrol. Targets of those miRNAs have potential implications for physiological and pathophysiological processes in health and disease.
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Affiliation(s)
- Partha Mukhopadhyay
- Laboratory of Physiologic Studies, NIAAA, National Institute of Health, Bethesda, Maryland, USA.
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Robich MP, Osipov RM, Nezafat R, Feng J, Clements RT, Bianchi C, Boodhwani M, Coady MA, Laham RJ, Sellke FW. Resveratrol improves myocardial perfusion in a swine model of hypercholesterolemia and chronic myocardial ischemia. Circulation 2010; 122:S142-9. [PMID: 20837905 DOI: 10.1161/circulationaha.109.920132] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Resveratrol may provide protection against coronary artery disease. We hypothesized that supplemental resveratrol will improve cardiac perfusion in the ischemic territory of swine with hypercholesterolemia and chronic myocardial ischemia. METHODS AND RESULTS Yorkshire swine were fed either a normal diet (control, n=7), a hypercholesterolemic diet (HCC, n=7), or a hypercholesterolemic diet with supplemental resveratrol (100 mg/kg/d orally, HCRV, n=7). Four weeks later, an ameroid constrictor was placed on the left circumflex artery. Animals underwent cardiac MRI and coronary angiography 7 weeks later before euthanasia and tissue harvest. Total cholesterol was lowered about 30% in HCRV animals (P<0.001). Regional wall motion analysis demonstrated a significant decrease in inferolateral function from baseline to 7 weeks in HCC swine (P=0.04). There was no significant change in regional function in HCRV swine from baseline to 7 weeks (P=0.32). Tissue blood flow during stress was 2.8-fold greater in HCRV swine when compared with HCC swine (P=0.04). Endothelium-dependent microvascular relaxation response to Substance P was diminished in HCC swine, which was rescued by resveratrol treatment (P=0.004). Capillary density (PECAM-1 staining) demonstrated fewer capillaries in both HCC and HCRV swine versus control swine (P=0.02). Immunoblot analysis demonstrated significantly greater expression in HCRV versus HCC swine of the following markers of angiogenesis: VEGF (P=0.002), peNOS (ser1177) (P=0.04), NFkB (P=0.004), and pAkt (thr308) (P=0.001). CONCLUSIONS Supplemental resveratrol attenuates regional wall motion abnormalities, improves myocardial perfusion in the collateral dependent region, preserves endothelium-dependent coronary vessel function, and upregulates markers of angiogenesis associated with the VEGF signaling pathway.
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Affiliation(s)
- Michael P Robich
- Department of Surgery, Division of Cardiothoracic Surgery, Warren Alpert School of Medicine, Brown University, Providence, RI 02903, USA
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Feher G, Feher A, Pusch G, Koltai K, Tibold A, Gasztonyi B, Papp E, Szapary L, Kesmarky G, Toth K. Clinical importance of aspirin and clopidogrel resistance. World J Cardiol 2010; 2:171-86. [PMID: 21160749 PMCID: PMC2998916 DOI: 10.4330/wjc.v2.i7.171] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2010] [Revised: 06/02/2010] [Accepted: 06/09/2010] [Indexed: 02/06/2023] Open
Abstract
Aspirin and clopidogrel are important components of medical therapy for patients with acute coronary syndromes, for those who received coronary artery stents and in the secondary prevention of ischaemic stroke. Despite their use, a significant number of patients experience recurrent adverse ischaemic events. Interindividual variability of platelet aggregation in response to these antiplatelet agents may be an explanation for some of these recurrent events, and small trials have linked "aspirin and/or clopidogrel resistance", as measured by platelet function tests, to adverse events. We systematically reviewed all available evidence on the prevalence of aspirin/clopidogrel resistance, their possible risk factors and their association with clinical outcomes. We also identified articles showing possible treatments. After analyzing the data on different laboratory methods, we found that aspirin/clopidogrel resistance seems to be associated with poor clinical outcomes and there is currently no standardized or widely accepted definition of clopidogrel resistance. Therefore, we conclude that specific treatment recommendations are not established for patients who exhibit high platelet reactivity during aspirin/clopidogrel therapy or who have poor platelet inhibition by clopidogrel.
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Affiliation(s)
- Gergely Feher
- Gergely Feher, Andrea Feher, Gabriella Pusch, Laszlo Szapary, Department of Neurology, University of Pecs, Pecs, Baranya, H-7623, Hungary
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Sonnett TE, Levien TL, Gates BJ, Robinson JD, Campbell RK. Diabetes mellitus, inflammation, obesity: proposed treatment pathways for current and future therapies. Ann Pharmacother 2010; 44:701-11. [PMID: 20233909 DOI: 10.1345/aph.1m640] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE To review the pathophysiology, pharmacology, and current or future therapies under study for use in treating diabetes mellitus, inflammation associated with diabetes mellitus, and/or obesity related to diabetes mellitus, through 1 of 4 investigational pathways: adiponectin, ghrelin, resveratrol, or leptin. DATA SOURCES A literature search using MEDLINE (1966-December 12, 2009), PubMed (1950-December 12, 2009), Science Direct (1994-December 12, 2009), and International Pharmaceutical Abstracts (1970-December 12, 2009) was performed using the terms adiponectin, ghrelin, resveratrol, leptin, inflammation, obesity, and diabetes mellitus. English-language, original research, and review articles were examined, and citations from these articles were assessed as well. STUDY SELECTION AND DATA EXTRACTION Clinical studies and in vitro studies were included in addition to any Phase 1, 2, or 3 clinical trials. DATA SYNTHESIS Mechanistic pathways regarding adiponectin, ghrelin, resveratrol, and leptin are of interest as future treatment options for diabetes mellitus. Each of these pathways has produced significant in vitro and in vivo clinical data warranting further research as a possible treatment pathway for diabetes-related inflammation and/or obesity reduction. While research is still underway to determine the exact effects these pathways have on metabolic function, current data suggest that each of these compounds may be of interest for future therapies. CONCLUSIONS While several pathways under investigation may offer additional benefits in the treatment of diabetes mellitus and associated impairments, further investigation is necessary for both investigational and approved therapies to ensure that the impact in new pathways does not increase risks to patient safety and outcomes.
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Affiliation(s)
- Travis E Sonnett
- Department of Pharmacotherapy, Washington State University, Pullman, 99164, USA.
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Oomen CA, Farkas E, Roman V, van der Beek EM, Luiten PGM, Meerlo P. Resveratrol preserves cerebrovascular density and cognitive function in aging mice. Front Aging Neurosci 2009; 1:4. [PMID: 20552055 PMCID: PMC2874408 DOI: 10.3389/neuro.24.004.2009] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Accepted: 11/23/2009] [Indexed: 12/14/2022] Open
Abstract
Resveratrol, a natural polyphenol abundant in grapes and red wine, has been reported to exert numerous beneficial health effects. Among others, acute neuroprotective effects of resveratrol have been described in several models of neurodegeneration, both in vitro and in vivo. In the present study we examined the neuroprotective effects of long-term dietary supplementation with resveratrol in mice on behavioral, neurochemical and cerebrovascular level. We report a preserved cognitive function in resveratrol-treated aging mice, as shown by an enhanced acquisition of a spatial Y-maze task. This was paralleled by a higher microvascular density and a lower number of microvascular abnormalities in comparison to aging non-treated control animals. We found no effects of resveratrol supplementation on cholinergic cell number or fiber density. The present findings support the hypothesis that resveratrol exerts beneficial effects on the brain by maintaining cerebrovascular health. Via this mechanism resveratrol can contribute to the preservation of cognitive function during aging.
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Affiliation(s)
- Charlotte A Oomen
- Department of Molecular Neurobiology, Center for Behavior and Neuroscience, University of Groningen Groningen, The Netherlands
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