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Bocsan IC, Pop RM, Sabin O, Sarkandy E, Boarescu PM, Roşian ŞH, Leru PM, Chedea VS, Socaci SA, Buzoianu AD. Comparative Protective Effect of Nigella sativa Oil and Vitis vinifera Seed Oil in an Experimental Model of Isoproterenol-Induced Acute Myocardial Ischemia in Rats. Molecules 2021; 26:molecules26113221. [PMID: 34072098 PMCID: PMC8198749 DOI: 10.3390/molecules26113221] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/16/2021] [Accepted: 05/24/2021] [Indexed: 11/30/2022] Open
Abstract
The study’s aim was to characterize the composition of Nigella sativa seed (NSO) and grape seed (GSO) oils, and to evaluate their cardioprotective and anti-inflammatory effect on isoproterenol (ISO)-induced ischemia in rats. Materials and Methods: NSO and GSO supplements were physicochemically characterized. Liquid chromatography–mass spectrometry (HPLC-MS), Fourier-transform infrared spectroscopy (FTIR), and gas chromatography–mass spectrometry (GC-MS) analyses were used to determine the phytochemical composition in the oils. Total polyphenol content (TPC) and in vitro antioxidant activity were also determined. Pretreatment with 4 mL/kg/day NSO or GSO was administered to rats for 14 days. The experimental ischemia was induced by a single administration of ISO 45 mg/kg after 14 days. An electrocardiogram (ECG) was performed initially and 24 h after ISO. Biological evaluation was done at the end of experiment. Results: The HPLC-MS, GC-MS, and FTIR analyses showed that both NSO and GSO are important sources of bioactive compounds, especially catechin and phenolic acids in GSO, while NSO was enriched in flavonoids and thymol derivatives. Pretreatment with GSO and NSO significantly reduced ventricular conduction, prevented the cardiotoxic effect of ISO in ventricular myocardium, and reduced the level of proinflammatory cytokines and CK-Mb. Conclusion: Both NSO and GSO were shown to have an anti-inflammatory and cardioprotective effect in ISO-induced ischemia.
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Affiliation(s)
- Ioana Corina Bocsan
- Department of Pharmacology, Toxicology and Clinical Pharmacology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Victor Babes, No. 8, 400012 Cluj-Napoca, Romania; (I.C.B.); (O.S.); (E.S.); (A.D.B.)
| | - Raluca Maria Pop
- Department of Pharmacology, Toxicology and Clinical Pharmacology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Victor Babes, No. 8, 400012 Cluj-Napoca, Romania; (I.C.B.); (O.S.); (E.S.); (A.D.B.)
- Correspondence: or
| | - Octavia Sabin
- Department of Pharmacology, Toxicology and Clinical Pharmacology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Victor Babes, No. 8, 400012 Cluj-Napoca, Romania; (I.C.B.); (O.S.); (E.S.); (A.D.B.)
| | - Elias Sarkandy
- Department of Pharmacology, Toxicology and Clinical Pharmacology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Victor Babes, No. 8, 400012 Cluj-Napoca, Romania; (I.C.B.); (O.S.); (E.S.); (A.D.B.)
| | - Paul-Mihai Boarescu
- Department of Pathophysiology, Iuliu Haţieganu University of Medicine and Pharmacy Cluj-Napoca, 400012 Cluj-Napoca, Romania;
| | - Ştefan Horia Roşian
- “Niculae Stăncioiu” Heart Institute Cluj-Napoca, 19-21 Calea Moților Street, 400001 Cluj-Napoca, Romania;
- Department of Cardiology—Heart Institute, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, 19-21 Calea Moților Street, 400001 Cluj-Napoca, Romania
| | - Poliana Mihaela Leru
- Department of Family Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania;
- Colentina Clinical Hospital, 020125 Bucharest, Romania
| | - Veronica Sanda Chedea
- Research Station for Viticulture and Enology Blaj (SCDVV Blaj), 515400 Blaj, Romania;
| | - Sonia Ancuța Socaci
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Calea Manaștur 3-5, 400372 Cluj-Napoca, Romania;
| | - Anca Dana Buzoianu
- Department of Pharmacology, Toxicology and Clinical Pharmacology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Victor Babes, No. 8, 400012 Cluj-Napoca, Romania; (I.C.B.); (O.S.); (E.S.); (A.D.B.)
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Zare Mehrjerdi F, Niknazar S, Yadegari M, Akbari FA, Pirmoradi Z, Khaksari M. Carvacrol reduces hippocampal cell death and improves learning and memory deficits following lead-induced neurotoxicity via antioxidant activity. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2020; 393:1229-1237. [PMID: 32303785 DOI: 10.1007/s00210-020-01866-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 03/30/2020] [Indexed: 02/07/2023]
Abstract
Carvacrol is a monoterpene with neuroprotective effects in several animal models of neurodegeneration, including epilepsy, ischemia, and traumatic neuronal events. In this study, we aimed to examine the effects of carvacrol on neurodegeneration induced by lead acetate in rats. A total of 50 male Wistar rats were divided into five equal groups. The control group received drinking water, while the neurotoxic group was exposed to 500 ppm of lead acetate in drinking water for 40 days. The three remaining groups, which were also exposed to 500 ppm of lead acetate, received carvacrol at doses of 25, 50, and 100 mg/kg orally for 40 days. The Morris water maze test was employed to examine spatial learning and memory. Pathological damage to the hippocampus was determined by Nissl staining. The level of malondialdehyde (MDA), superoxide dismutase (SOD), and catalase (CAT) were detected using biochemical analysis and the free radical scavenging activity as evaluated by the DPPH test. Administration of carvacrol significantly restored learning and memory impairment induced by lead acetate. Moreover, carvacrol ameliorated neurodegeneration, antioxidative capacity, and lipid peroxidation in the hippocampus of rats exposed to lead. The present results provide a rationale for the inhibitory role of carvacrol in the attenuation of lead-induced neurotoxicity.
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Affiliation(s)
- Fatemeh Zare Mehrjerdi
- Neurobiomedical Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Somayeh Niknazar
- Hearing Disorders Research Center, Loghman Hakim Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Yadegari
- Neurobiomedical Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Fatemeh Ali Akbari
- Neurobiomedical Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Zeynab Pirmoradi
- Neurobiomedical Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Mehdi Khaksari
- School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.
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Evans LW, Ferguson BS. Food Bioactive HDAC Inhibitors in the Epigenetic Regulation of Heart Failure. Nutrients 2018; 10:E1120. [PMID: 30126190 PMCID: PMC6115944 DOI: 10.3390/nu10081120] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/15/2018] [Accepted: 08/15/2018] [Indexed: 12/21/2022] Open
Abstract
Approximately 5.7 million U.S. adults have been diagnosed with heart failure (HF). More concerning is that one in nine U.S. deaths included HF as a contributing cause. Current HF drugs (e.g., β-blockers, ACEi) target intracellular signaling cascades downstream of cell surface receptors to prevent cardiac pump dysfunction. However, these drugs fail to target other redundant intracellular signaling pathways and, therefore, limit drug efficacy. As such, it has been postulated that compounds designed to target shared downstream mediators of these signaling pathways would be more efficacious for the treatment of HF. Histone deacetylation has been linked as a key pathogenetic element for the development of HF. Lysine residues undergo diverse and reversible post-translational modifications that include acetylation and have historically been studied as epigenetic modifiers of histone tails within chromatin that provide an important mechanism for regulating gene expression. Of recent, bioactive compounds within our diet have been linked to the regulation of gene expression, in part, through regulation of the epi-genome. It has been reported that food bioactives regulate histone acetylation via direct regulation of writer (histone acetyl transferases, HATs) and eraser (histone deacetylases, HDACs) proteins. Therefore, bioactive food compounds offer unique therapeutic strategies as epigenetic modifiers of heart failure. This review will highlight food bio-actives as modifiers of histone deacetylase activity in the heart.
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Affiliation(s)
- Levi W Evans
- Department of Agriculture, Nutrition, & Veterinary Sciences, University of Nevada, Reno, NV 89557, USA.
- Center for Cardiovascular Research, University of Nevada, Reno, NV 89557, USA.
- Environmental Science & Health, University of Nevada, Reno, NV 89557, USA.
| | - Bradley S Ferguson
- Department of Agriculture, Nutrition, & Veterinary Sciences, University of Nevada, Reno, NV 89557, USA.
- Center for Cardiovascular Research, University of Nevada, Reno, NV 89557, USA.
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El Ayed M, Kadri S, Smine S, Elkahoui S, Limam F, Aouani E. Protective effects of grape seed and skin extract against high-fat-diet-induced lipotoxicity in rat lung. Lipids Health Dis 2017; 16:174. [PMID: 28903761 PMCID: PMC5598067 DOI: 10.1186/s12944-017-0561-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 09/04/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Obesity is a public health problem characterized by increased fat accumulation in different tissues. Obesity is directly linked to breathing problems and medical complications with lung, including obstructive sleep apnea syndrome, obesity hypoventilation syndrome, chronic obstructive pulmonary disease, asthma….In the present work, we aimed to investigate the effect of high fat diet (HFD) on lung lipotoxicity, oxidative stress, fatty acid composition and proportions in lung and implication in asthma development. The likely protection provided by grape seed extract (GSSE) was also investigated. METHODS In order to assess HFD effect on lung and GSSE protection we used a rat model. We analyzed the lipid plasma profile, lung peroxidation and antioxidant activities (SOD, CAT and POD). We also analyzed transition metals (Ca2+, Mg2+, Zn2+ and iron) and lung free fatty acids using gas chromatography coupled to mass spectrometry (GC-MS). RESULTS HFD induced lipid profile imbalance increasing cholesterol and VLDL-C. HFD also induced an oxidative stress assessed by elevated MDA level and the drop of antioxidant activities such as SOD, CAT and POD. Moreover, HFD induced mineral disturbances by decreasing magnesium level and increasing Calcium and iron levels. HFD induced also disturbances in lung fatty acid composition by increasing oleic, stearic and arachidonic acids. Interestingly, GSSE alleviated all these deleterious effects of HFD treatment. CONCLUSION As a whole, GSSE had a significant preventive effect against HFD-induced obesity, and hence may be used as an anti-obesity agent, and a benefic agent with potential applications against damages in lung tissue.
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Affiliation(s)
- Mohamed El Ayed
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia.
| | - Safwen Kadri
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia
| | - Selima Smine
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia.,Proteomic Platform PISSARO, Institut de Recherche et d'Innovation Biomédicale (IRIB), University of Rouen, 76821, Mont Saint Aignan, Cedex, France
| | - Salem Elkahoui
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia
| | - Ferid Limam
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia
| | - Ezzedine Aouani
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia
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Nour MS, Sarhan NR, Mazroa SA, Gawish SA. Histological and immunohistochemical study of cardiac telocytes in a rat model of isoproterenol-induced myocardial infarction with a reference to the effect of grape seed extract. Acta Histochem 2017; 119:747-758. [PMID: 28943000 DOI: 10.1016/j.acthis.2017.09.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/16/2017] [Accepted: 09/18/2017] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Cardiac telocytes (TCs) represent a unique type of cells that make a supportive network for stem cells that contribute in cardiac renewal, but their role during myocardial infarction (MI) is not clear. Grape seed extract (GSE) is a powerful natural antioxidant. AIM OF THE WORK Quantitative study of cardiac TCs in a rat model of Isoproterenol (ISO)-induced MI, and to evaluate the effect of GSE on TCs and MI progression. MATERIALS AND METHODS Seventy adult male albino rats were assigned into 4 groups; group I; control rats, group II received GSE (100mg/kg/day) dissolved in distilled water orally, group III received 2 intra-peritoneal injections of 85mg/kg ISO dissolved in saline on 14th and 15th day to induce MI, and group IV received GSE and ISO. Myocardium was obtained 1 and 14days after ISO i.e. on day 16 and day 30 respectively. Tissue was prepared for histological and immunohistochemical study of CD117 and CD34 as two markers for TCs. CD34 was used also as a marker for angiogenesis. RESULTS Group III showed focal areas of myocardial infarction 1day and 14days after ISO. Degenerated cardiomyocytes showed loss of striation and hypereosinophilic vacuolated cytoplasm with condensed nuclei. Mononuclear cell infiltration and a significantly increased percentage area of fibrosis 14days after ISO were observed. CD117 and CD34 positive TCs were hardly detected 1day after ISO. Their number slightly increased 14days after ISO with insignificant difference to control. There was also a significant increase in the number of CD34 positive blood vessels 14days after ISO. Group IV showed much better histological picture with a significant decrease in the percentage area of fibrosis and a significant increase in the number of CD117 and CD34 positive TCs and the number of CD34 positive blood vessels as compared to group III. CONCLUSION Telocytes were significantly decreased in MI. GSE reduced ISO-induced histological changes and increased the number of TCs that improved angiogenesis.
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Affiliation(s)
- Mai Salah Nour
- Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, 35516, Egypt.
| | - Nahla Reda Sarhan
- Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, 35516, Egypt.
| | - Shireen A Mazroa
- Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, 35516, Egypt.
| | - Salwa A Gawish
- Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, 35516, Egypt.
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Patten GS, Abeywardena MY, Bennett LE. Inhibition of Angiotensin Converting Enzyme, Angiotensin II Receptor Blocking, and Blood Pressure Lowering Bioactivity across Plant Families. Crit Rev Food Sci Nutr 2016; 56:181-214. [PMID: 24915402 DOI: 10.1080/10408398.2011.651176] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Hypertension is a major risk factor for coronary heart disease, kidney disease, and stroke. Interest in medicinal or nutraceutical plant bioactives to reduce hypertension has increased dramatically. The main biological regulation of mammalian blood pressure is via the renin-angiotensin-aldosterone system. The key enzyme is angiotensin converting enzyme (ACE) that converts angiotensin I into the powerful vasoconstrictor, angiotensin II. Angiotensin II binds to its receptors (AT1) on smooth muscle cells of the arteriole vasculature causing vasoconstriction and elevation of blood pressure. This review focuses on the in vitro and in vivo reports of plant-derived extracts that inhibit ACE activity, block angiotensin II receptor binding and demonstrate hypotensive activity in animal or human studies. We describe 74 families of plants that exhibited significant ACE inhibitory activity and 16 plant families with potential AT1 receptor blocking activity, according to in vitro studies. From 43 plant families including some of those with in vitro bioactivity, the extracts from 73 plant species lowered blood pressure in various normotensive or hypertensive in vivo models by the oral route. Of these, 19 species from 15 families lowered human BP when administered orally. Some of the active plant extracts, isolated bioactives and BP-lowering mechanisms are discussed.
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Affiliation(s)
- Glen S Patten
- a CSIRO Preventative Health National Research Flagship, Animal, Food and Health Sciences , Adelaide , South Australia , Australia
| | - Mahinda Y Abeywardena
- a CSIRO Preventative Health National Research Flagship, Animal, Food and Health Sciences , Adelaide , South Australia , Australia
| | - Louise E Bennett
- b CSIRO Preventative Health National Research Flagship, Animal, Food and Health Sciences, Werribee , Victoria , British Columbia , Australia
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El-Ashmawy IM, Bayad AE. Folic Acid and Grape Seed Extract Prevent Azathioprine-induced Fetal Malformations and Renal Toxicity in Rats. Phytother Res 2016; 30:2027-2035. [PMID: 27561814 DOI: 10.1002/ptr.5709] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 07/16/2016] [Accepted: 08/11/2016] [Indexed: 12/31/2022]
Abstract
Azathioprine (AZA) is an important drug commonly used in the therapy of the autoimmune system disorders. It induces many hazard effects that restrict its use. The present study was designed to investigate the influence of AZA on the fetal development and renal function and its co-administration with either folic acid (FA) or grape seed extract (GSE). The effects of administration of GSE or FA on AZA toxicity by gavage simultaneously for 4 weeks were studied by determining the changes in kidney histology, the glutathione level (GSH), and lipid per oxidation content as malondialdehyde in the kidney tissue. Additionally, their effects on the fetal development were investigated. Azathioprine induced a renal damage as indicated from the pronounced changes in histological structure, a significant increase in serum urea and creatinine, and malondialdehyde content in the kidney tissue. Meanwhile, the GSH activity was significantly decreased. Co-treatment with GSE significantly minimized the previously mentioned hazard effects of AZA by ameliorating the antioxidant activity. At this point, FA induced a nonsignificant protective activity. The results also revealed that administration of FA or GSE at 6th to 15th day of gestation did not altered fetal development. While, AZA administration clearly disturbed fetal development as indicated from a significant decrease in fetal weights. Furthermore, co-administration of both drugs significantly minimized similarly the hazards of AZA on the fetal development. It may be concluded that GSE and FA are a useful remedies. Maternal administrations of either both are protective agents against AZA-induced fetal malformations. Grape seed extract was more active than FA in potentiating the antioxidative defenses for controlling AZA-induced oxidative renal damages. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ibrahim M El-Ashmawy
- Department of Pharmacology, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt.,Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraidah, 51452 P.O.6622, Al-Qassim, Saudi Arabia
| | - Aida E Bayad
- Veterinary Services Center, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
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Badavi M, Abedi HA, Sarkaki AR, Dianat M. Co-administration of Grape Seed Extract and Exercise Training Improves Endothelial Dysfunction of Coronary Vascular Bed of STZ-Induced Diabetic Rats. IRANIAN RED CRESCENT MEDICAL JOURNAL 2013; 15:e7624. [PMID: 24693368 PMCID: PMC3950780 DOI: 10.5812/ircmj.7624] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 02/02/2013] [Accepted: 07/15/2013] [Indexed: 02/07/2023]
Abstract
Background One of the known complications of diabetes mellitus is vascular dysfunction. Inability of the coronary vascular response to cardiac hyperactivity might cause a higher incidence of ischemic heart disease in diabetic subjects. It has been indicated that regular exercise training and antioxidants could prevent diabetic cardiovascular problems enhanced by vascular damage. Objectives The aim of this study was to determine the effects of grape seed extract (as antioxidant), with and without exercise training on coronary vascular function in streptozotocin induced diabetic rats. Materials and Methods Fifty male Wistar rats weighing 200 – 232 grams were randomly divided into five groups of 10 rats each: sedentary control, sedentary diabetic, trained diabetic, grape seed extract (200 mg/kg) treated sedentary diabetic and, grape seed extract treated trained diabetic. Diabetes was induced by one intraperitoneal injection of streptozotocin. After eight weeks, coronary vascular responses to vasoactive agents were determined. Results The endothelium dependent vasorelaxation to acetylcholine was reduced significantly in diabetic animals; exercise training or grape seed extract administration partially improves this response. However, exercise training in combination with grape seed extract restores endothelial function completely. The endothelium independent vasorelaxation to sodium nitroprusside was improved by combination of exercise training and grape seed extract. On the other hand, the basal perfusion pressure and vasoconstrictive response to phenylephrine did not change significantly. Conclusions The data indicated that co-administration of grape seed extract and exercise training had more significant effects than exercise training or grape seed extract alone; this may constitute a convenient and inexpensive therapeutic approach to diabetic vascular complications.
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Affiliation(s)
- Mohammad Badavi
- Physiology Research Center, Physiology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Hassan Ali Abedi
- Physiology Department, Faculty of Medicine, Jahrom University of Medical Sciences, Jahrom, IR Iran
- Corresponding Author: Hassan Ali Abedi, Physiology Department, Faculty of Medicine, Jahrom University of Medical Sciences, Jahrom, IR Iran. Tel: +98-7913340405, Fax: +98-7914440072, E-mail:
| | - Ali Reza Sarkaki
- Physiology Research Center, Physiology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Mahin Dianat
- Physiology Research Center, Physiology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
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Badavi M, Abedi H, Dianat M, Sarkaki A. Exercise Training and Grape Seed Extract Co-administration Improve Endothelial Dysfunction of Mesenteric Vascular Bed in STZ-induced Diabetic Rats. INT J PHARMACOL 2011. [DOI: 10.3923/ijp.2011.813.820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
Accumulating evidence suggests that consumption of grapes and grape products can positively influence risk factors associated with cardiovascular health, cancer, neurodegenerative disease, and age-related cognitive decline. These effects are often attributed to the antioxidant activity and function of flavonoid compounds found in grapes as well as other actions such as increasing nitric oxide production. The well-established health effects of grapes on cardiovascular disease risk, mainly on endothelial function, LDL oxidation, progression of atherosclerosis, and reduction in oxidative stress, have been clearly identified. Emerging research has also demonstrated that grapes have beneficial effects on other chronic-degenerative diseases such as cancer, Alzheimer's disease, age-related cognitive decline, and diabetes. Further beneficial effects of grapes on oral health, immune function, and antiviral activity have also been reported. This review examines the published evidence on the human health benefits associated with grapes and grape products, with animal and cell studies included for areas in which human research is either limited or unavailable.
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Long J, Gao H, Sun L, Liu J, Zhao-Wilson X. Grape extract protects mitochondria from oxidative damage and improves locomotor dysfunction and extends lifespan in a Drosophila Parkinson's disease model. Rejuvenation Res 2010; 12:321-31. [PMID: 19929256 DOI: 10.1089/rej.2009.0877] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A botanical extract (Regrapex-R) prepared from whole grape (Vitis vinifera) and Polygonum cuspidatum, which contains polyphenols, including flavans, anthocyanins, emodin, and resveratrol, exhibited dose-dependent scavenging effects on reactive oxygen species (ROS). The extract inhibited increases of ROS and protein carbonyl in isolated rat liver mitochondria following exposure to 2,2'-azobis (2-amidino propane) dihydrocholoride (AAPH), a potent lipid oxidant generator. The antioxidant effects of this extract were further demonstrated by protecting enzyme activities of the mitochondrial respiratory electron transport chain (complexes I and II) and pyruvate dehydrogenase in isolated liver mitochondria with AAPH insult. In human neuroblastoma cells (SKN-MC), pretreatment of extract protected cells against AAPH induced oxidation in maintaining cell viability and inhibiting excessive ROS generation. Extract was fed to transgenic Drosophila expressing human alpha-synuclein. This model for Parkinson disease recapitulates essential features of the disorder, including loss of dopaminergic neurons in the substantia nigra and a locomotor dysfunction that is displayed by a progressive loss of climbing ability measured using a geotaxis assay. Male transgenic flies fed the extract (0.16-0.64 mg/100 g of culture medium) showed a significant improvement in climbing ability compared to controls. Female transgenic flies showed a significant extension in average lifespan. These results suggest that Regrapex-R is a potent free radical scavenger, a mitochondrial protector, and a candidate for further studies to assess its ability to protect against neurodegenerative disease and potentially extend lifespan.
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Affiliation(s)
- Jiangang Long
- Institute of Mitochondrial Biology and Medicine, Department of Biology and Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an Jiaotong University School of Life Science and Technology, Xi'an, China
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