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Jafari S, Shoghi M, Khazdair MR. Pharmacological Effects of Genistein on Cardiovascular Diseases. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2023; 2023:8250219. [PMID: 37275572 PMCID: PMC10238142 DOI: 10.1155/2023/8250219] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/14/2022] [Indexed: 06/07/2023]
Abstract
Cardiovascular diseases (CVDs) are a group of disorders that involve the heart or blood vessels and are the leading cause of mortality worldwide. Natural products have several pharmacological activities, such as anti-inflammatory, antioxidant, and immunoregulatory properties. This review summarizes the possible therapeutic effects of Genistein on CVD. The information from the current review study was obtained by searching for the keywords such as "Genistein", "Cardiac dysfunction", "hypertrophy", and "Ischemia" "lipid profile" in different online database such as PubMed, Scopus, and Google Scholar, until February 2022. The results of the studies showed that genistein intake has a promising effect on improving cardiac dysfunction, ischemia, and reperfusion of the heart, decreasing cardiac toxicity, modulating lipid profile, and lowering blood pressure. The preventive effects of genistein on experimental models of studies were shown through mechanisms such as anti-inflammatory, antioxidant, and immunomodulatory effects. Pharmacological effects of genistein on cardiac dysfunction, cardiac toxicity, lipid profile, and hypertension indicate the possible remedy effect of this agent in the treatment of CVD.
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Affiliation(s)
- Shima Jafari
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
- Department of Clinical Pharmacy, School of Pharmacy, Birjand University of Medical Sciences, Birjand, Iran
| | - Melika Shoghi
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Reza Khazdair
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
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Rungsung S, Singh TU, Perumalraja K, Mahobiya A, Sharma M, Lingaraju MC, Parida S, Sahoo M, Kumar D. Luteolin alleviates vascular dysfunctions in CLP-induced polymicrobial sepsis in mice. Pharmacol Rep 2022; 74:1054-1068. [PMID: 35939258 DOI: 10.1007/s43440-022-00399-4] [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: 01/29/2022] [Revised: 07/20/2022] [Accepted: 07/23/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Luteolin, a naturally occurring flavonoid, is thought to have health-promoting properties as a part of human diet and has been reported to possess a wide range of pharmacological activities. Therefore, the present study was undertaken to evaluate the effect of luteolin pre-treatment on vascular dysfunctions in sepsis induced by caecal ligation and puncture (CLP) in the mouse model. METHODS Mice were divided into four groups: sham, luteolin plus sham, CLP, and luteolin plus CLP. Luteolin was administered (0.2 mg/kg body weight) intraperitoneally one hour (h) before CLP surgery in mice. 20 ± 2 h post CLP surgery, the isolated thoracic aorta of mice was assessed for its vascular reactivity to noradrenaline (NA) and acetylcholine (ACh). To explore the underlying mechanism, aortic mRNA expressions of α1D adrenoceptors, eNOS and iNOS were investigated. RESULTS In mice with CLP-induced sepsis luteolin pre-treatment markedly increased the survival time and attenuated serum lactate level. The CLP group manifested the reduced vascular reactivity to NA and this deficit was restored by luteolin pre-treatment. However, luteolin pre-treatment did not improve α1D adrenoceptors down-regulation observed in septic mice aorta. In the presence of 1400 W, the NA contractile response was significantly restored in CLP mice aortic tissue in comparison with the respective control of septic mice and further enhanced in the presence of luteolin. Luteolin reduced the iNOS mRNA expression and iNOS-derived nitrite production. Pre-treatment with luteolin restored the endothelial dysfunction in septic mice aorta by improving eNOS mRNA expression and enhanced eNOS-derived nitric oxide (NO) production in septic mice aorta and aortic iNOS gene expression and inducible NO production. CONCLUSION The present study suggests that the vasoplegic state to NA in aorta was restored through the iNOS pathway and endothelial dysfunction was reversed via eNOS and NO production pathway.
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Affiliation(s)
- Soya Rungsung
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Thakur Uttam Singh
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India.
| | - Kirthika Perumalraja
- Division of Animal Biochemistry, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Archana Mahobiya
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Meemansha Sharma
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Madhu Cholenahalli Lingaraju
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Subhashree Parida
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Monalisa Sahoo
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Dinesh Kumar
- Division of Pharmacology and Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
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Shanmugavadivu A, Balagangadharan K, Selvamurugan N. Angiogenic and Osteogenic Effects of Flavonoids in Bone Regeneration. Biotechnol Bioeng 2022; 119:2313-2330. [PMID: 35718883 DOI: 10.1002/bit.28162] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 06/14/2022] [Indexed: 11/10/2022]
Abstract
Bone is a highly vascularised tissue that relies on a close spatial and temporal interaction between blood vessels and bone cells. As a result, angiogenesis is critical for bone formation and healing. The vascular system supports bone regeneration by delivering oxygen, nutrients, and growth factors, as well as facilitating efficient cell-cell contact. Most clinical applications of engineered bone grafts are hampered by insufficient vascularization after implantation. Over the last decade, a number of flavonoids have been reported to have osteogenic-angiogenic potential in bone regeneration because of their excellent bioactivity, low cost, availability, and minimal in vivo toxicity. During new bone formation, the osteoinductive nature of certain flavonoids is involved in regulating multiple signaling pathways contributing toward the osteogenic-angiogenic coupling. This review briefly outlines the osteogenic-angiogenic potential of those flavonoids and the mechanisms of their action in promoting bone regeneration. However, further studies are needed to investigate their delivery strategies and establish their clinical efficacy. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Abinaya Shanmugavadivu
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
| | - K Balagangadharan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
| | - N Selvamurugan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
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Silva H. The Vascular Effects of Isolated Isoflavones-A Focus on the Determinants of Blood Pressure Regulation. BIOLOGY 2021; 10:49. [PMID: 33445531 PMCID: PMC7827317 DOI: 10.3390/biology10010049] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/27/2020] [Accepted: 01/02/2021] [Indexed: 02/07/2023]
Abstract
Isoflavones are phytoestrogen compounds with important biological activities, including improvement of cardiovascular health. This activity is most evident in populations with a high isoflavone dietary intake, essentially from soybean-based products. The major isoflavones known to display the most important cardiovascular effects are genistein, daidzein, glycitein, formononetin, and biochanin A, although the closely related metabolite equol is also relevant. Most clinical studies have been focused on the impact of dietary intake or supplementation with mixtures of compounds, with only a few addressing the effect of isolated compounds. This paper reviews the main actions of isolated isoflavones on the vasculature, with particular focus given to their effect on the determinants of blood pressure regulation. Isoflavones exert vasorelaxation due to a multitude of pathways in different vascular beds. They can act in the endothelium to potentiate the release of NO and endothelium-derived hyperpolarization factors. In the vascular smooth muscle, isoflavones modulate calcium and potassium channels, leading to hyperpolarization and relaxation. Some of these effects are influenced by the binding of isoflavones to estrogen receptors and to the inhibition of specific kinase enzymes. The vasorelaxation effects of isoflavones are mostly obtained with plasma concentrations in the micromolar range, which are only attained through supplementation. This paper highlights isolated isoflavones as potentially suitable alternatives to soy-based foodstuffs and supplements and which could enlarge the current therapeutic arsenal. Nonetheless, more studies are needed to better establish their safety profile and elect the most useful applications.
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Affiliation(s)
- Henrique Silva
- Informetrics Research Group, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam;
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
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Alikiaii B, Bagherniya M, Askari G, Johnston TP, Sahebkar A. The role of phytochemicals in sepsis: A mechanistic and therapeutic perspective. Biofactors 2021; 47:19-40. [PMID: 33217777 DOI: 10.1002/biof.1694] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/13/2020] [Indexed: 12/14/2022]
Abstract
Sepsis and septic shock are still a leading cause of mortality and morbidity in intensive care units worldwide. Sepsis is an uncontrolled and excessive response of the innate immune system toward the invading infectious microbes, characterized by the hyper-production of pro-inflammatory mediators such as interleukin (IL)-1β, IL-6, tumor-necrosis factor (TNF)-α, and high-mobility group box 1 (HMGB1). In severe sepsis, the overwhelming production of pro-inflammatory cytokines and reactive oxygen species may compromise organ function and lead to the induction of abnormal apoptosis in different organs, resulting in multiple organ dysfunction syndrome and death. Hence, compounds that are able to attenuate inflammatory responses may have therapeutic potential for sepsis treatment. Understanding the pathophysiology and underlying molecular mechanisms of sepsis may provide useful insights in the discovery and development of new effective therapeutics. Therefore, numerous studies have invested much effort into elucidating the mechanisms involved with the onset and development of sepsis. The present review mainly focuses on the molecules and signaling pathways involved in the pathogenicity of sepsis. Additionally, several well-known natural bioactive herbal compounds and phytochemicals, which have shown protective and therapeutic effects with regard to sepsis, as well as their mechanisms of action, are presented. This review suggests that these phytochemicals are able to attenuate the overwhelming inflammatory responses developed during sepsis by modulating different signaling pathways. Moreover, the anti-inflammatory and cytoprotective activities of phytochemicals make them potent compounds to be included as complementary therapeutic agents in the diets of patients suffering from sepsis in an effort to alleviate sepsis and its life-threatening complications, such as multi-organ failure.
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Affiliation(s)
- Babak Alikiaii
- Anesthesia and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Bagherniya
- Anesthesia and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Gholamreza Askari
- Anesthesia and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Thomas P Johnston
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Halal Research Center of IRI, FDA, Tehran, Iran
- Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland
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Daci A, Da Dalt L, Alaj R, Shurdhiqi S, Neziri B, Ferizi R, Danilo Norata G, Krasniqi S. Rivaroxaban improves vascular response in LPS-induced acute inflammation in experimental models. PLoS One 2020; 15:e0240669. [PMID: 33301454 PMCID: PMC7728205 DOI: 10.1371/journal.pone.0240669] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 09/30/2020] [Indexed: 12/18/2022] Open
Abstract
Rivaroxaban (RVX) was suggested to possess anti-inflammatory and vascular tone modulatory effects. The goal of this study was to investigate whether RVX impacts lipopolysaccharide (LPS)-induced acute vascular inflammatory response. Male rats were treated with 5 mg/kg RVX (oral gavage) followed by 10 mg/kg LPS i.p injection. Circulating levels of IL-6, MCP-1, VCAM-1, and ICAM-1 were measured in plasma 6 and 24 hours after LPS injection, while isolated aorta was used for gene expression analysis, immunohistochemistry, and vascular tone evaluation. RVX pre-treatment significantly reduced LPS mediated increase after 6h and 24h for IL-6 (4.4±2.2 and 2.8±1.7 fold), MCP-1 (1.4±1.5 and 1.3±1.4 fold) VCAM-1 (1.8±2.0 and 1.7±2.1 fold). A similar trend was observed in the aorta for iNOS (5.5±3.3 and 3.3±1.9 folds reduction, P<0.01 and P<0.001, respectively), VCAM-1 (1.3±1.2 and 1.4±1.3 fold reduction, P<0.05), and MCP-1 (3.9±2.2 and 1.9±1.6 fold reduction, P<0.01). Moreover, RVX pre-treatment, improved LPS-induced PE contractile dysfunction in aortic rings (Control vs LPS, Emax reduction = 35.4 and 31.19%, P<0.001; Control vs LPS+RVX, Emax reduction = 10.83 and 11.48%, P>0.05, respectively), resulting in 24.5% and 19.7% change in maximal constriction in LPS and LPS+RVX respectively. These data indicate that RVX pre-treatment attenuates LPS-induced acute vascular inflammation and contractile dysfunction.
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Affiliation(s)
- Armond Daci
- Department of Pharmacy, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
- Institute of Pharmacology and Toxicology, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
| | - Lorenzo Da Dalt
- Department of Excellence of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Rame Alaj
- Cardiovascular Surgery Clinic, University Clinical Center of Kosovo, Prishtina, Kosovo
| | - Shpejtim Shurdhiqi
- Cardiovascular Surgery Clinic, University Clinical Center of Kosovo, Prishtina, Kosovo
| | - Burim Neziri
- Institute of Pathophysiology, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
| | - Rrahman Ferizi
- Department of Premedical Courses-Biology, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
| | - Giuseppe Danilo Norata
- Department of Excellence of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
- Centro SISA per lo Studio dell’Aterosclerosi, Ospedale Bassini, Cinisello Balsamo, Italy
| | - Shaip Krasniqi
- Institute of Pharmacology and Toxicology, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
- * E-mail:
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Genistein Protects Against Burn-Induced Myocardial Injury via Notch1-Mediated Suppression of Oxidative/Nitrative Stress. Shock 2019; 54:337-346. [DOI: 10.1097/shk.0000000000001464] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Toral M, Robles-Vera I, de la Visitación N, Romero M, Yang T, Sánchez M, Gómez-Guzmán M, Jiménez R, Raizada MK, Duarte J. Critical Role of the Interaction Gut Microbiota - Sympathetic Nervous System in the Regulation of Blood Pressure. Front Physiol 2019; 10:231. [PMID: 30930793 PMCID: PMC6423906 DOI: 10.3389/fphys.2019.00231] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 02/21/2019] [Indexed: 12/11/2022] Open
Abstract
Association between gut dysbiosis and neurogenic diseases, such as hypertension, has been described. The aim of this study was to investigate whether changes in the gut microbiota alter gut-brain interactions inducing changes in blood pressure (BP). Recipient normotensive Wistar-Kyoto (WKY) and spontaneously hypertensive rats (SHR) were orally gavaged with donor fecal contents from SHR and WKY. We divided the animals into four groups: WKY transplanted with WKY microbiota (W-W), SHR with SHR (S-S), WKY with SHR (W-S) and SHR with WKY (S-W). Basal systolic BP (SBP) and diastolic BP (DBP) were reduced with no change in heart rate as a result of fecal microbiota transplantation (FMT) from WKY rats to SHR. Similarly, FMT from SHR to WKY increased basal SBP and DBP. Increases in both NADPH oxidase-driven reactive oxygen species production and proinflammatory cytokines in brain paraventricular nucleus linked to higher BP drop with pentolinium and plasmatic noradrenaline (NA) levels were found in the S-S group as compared to the W-W group. These parameters were reduced by FMT from WKY to SHR. Increased levels of pro-inflammatory cytokines, tyrosine hydroxylase mRNA levels and NA content in the proximal colon, whereas reduced mRNA levels of gap junction proteins, were found in the S-S group as compared to the W-W group. These changes were inhibited by FMT from WKY to SHR. According to our correlation analyses, the abundance of Blautia and Odoribacter showed a negative correlation with high SBP. In conclusion, in SHR gut microbiota is an important factor involved in BP control, at least in part, as consequence of its effect on neuroinflammation and the sympathetic nervous system activity.
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Affiliation(s)
- Marta Toral
- Department of Pharmacology, School of Pharmacy, Centro de Investigación Biomédica, University of Granada, Granada, Spain
| | - Iñaki Robles-Vera
- Department of Pharmacology, School of Pharmacy, Centro de Investigación Biomédica, University of Granada, Granada, Spain
| | - Néstor de la Visitación
- Department of Pharmacology, School of Pharmacy, Centro de Investigación Biomédica, University of Granada, Granada, Spain
| | - Miguel Romero
- Department of Pharmacology, School of Pharmacy, Centro de Investigación Biomédica, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada, ibs.GRANADA, Granada, Spain
| | - Tao Yang
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL, United States
| | - Manuel Sánchez
- Department of Pharmacology, School of Pharmacy, Centro de Investigación Biomédica, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada, ibs.GRANADA, Granada, Spain
| | - Manuel Gómez-Guzmán
- Department of Pharmacology, School of Pharmacy, Centro de Investigación Biomédica, University of Granada, Granada, Spain
| | - Rosario Jiménez
- Department of Pharmacology, School of Pharmacy, Centro de Investigación Biomédica, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada, ibs.GRANADA, Granada, Spain.,CIBERCV, University of Granada, Granada, Spain
| | - Mohan K Raizada
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL, United States
| | - Juan Duarte
- Department of Pharmacology, School of Pharmacy, Centro de Investigación Biomédica, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada, ibs.GRANADA, Granada, Spain.,CIBERCV, University of Granada, Granada, Spain
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Hassanshahi M, Su Y, Khabbazi S, Fan C, Chen K, Wang J, Qian A, Howe PR, Yan D, Zhou H, Xian CJ. Flavonoid genistein protects bone marrow sinusoidal blood vessels from damage by methotrexate therapy in rats. J Cell Physiol 2018; 234:11276-11286. [DOI: 10.1002/jcp.27785] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 10/31/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Mohammadhossein Hassanshahi
- School of Pharmacy and Medical Sciences, and UniSA Cancer Research Institute, University of South Australia Adelaide South Australia Australia
| | - Yu‐Wen Su
- School of Pharmacy and Medical Sciences, and UniSA Cancer Research Institute, University of South Australia Adelaide South Australia Australia
| | - Samira Khabbazi
- School of Pharmacy and Medical Sciences, and UniSA Cancer Research Institute, University of South Australia Adelaide South Australia Australia
| | - Chia‐Ming Fan
- School of Pharmacy and Medical Sciences, and UniSA Cancer Research Institute, University of South Australia Adelaide South Australia Australia
| | - Ke‐Ming Chen
- Institute of Orthopaedics, Lanzhou General Hospital of CPLA Lanzhou China
| | - Ju‐Fang Wang
- Institute of Modern Physics, Chinese Academy of Sciences Lanzhou Gansu China
| | - Airong Qian
- Laboratory for Bone Metabolism, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University Xi’an Shaanxi China
| | - Peter R. Howe
- Institute for Resilient Regions, University of Southern Queensland Springfield Queensland Australia
- Clinical Nutrition Research Centre, University of Newcastle Callaghan New South Wales Australia
| | - De‐Wen Yan
- Department of Endocrinology The First Affiliated Hospital of Shenzhen University Shenzhen Guangdong China
| | - Hou‐De Zhou
- Department of Endocrinology and Metabolism National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University Changsha Hunan China
| | - Cory J. Xian
- School of Pharmacy and Medical Sciences, and UniSA Cancer Research Institute, University of South Australia Adelaide South Australia Australia
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Jantan I, Ahmad W, Bukhari SNA. Plant-derived immunomodulators: an insight on their preclinical evaluation and clinical trials. FRONTIERS IN PLANT SCIENCE 2015; 6:655. [PMID: 26379683 PMCID: PMC4548092 DOI: 10.3389/fpls.2015.00655] [Citation(s) in RCA: 184] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 08/07/2015] [Indexed: 05/17/2023]
Abstract
The phagocyte-microbe interactions in the immune system is a defense mechanism but when excessively or inappropriately deployed can harm host tissues and participate in the development of different non-immune and immune chronic inflammatory diseases such as autoimmune problems, allergies, some rheumatoid disorders, cancers and others. Immunodrugs include organic synthetics, biological agents such as cytokines and antibodies acting on single targets or pathways have been used to treat immune-related diseases but with limited success. Most of immunostimulants and immunosuppressants in clinical use are the cytotoxic drugs which possess serious side effects. There is a growing interest to use herbal medicines as multi-component agents to modulate the complex immune system in the prevention of infections rather than treating the immune-related diseases. Many therapeutic effects of plant extracts have been suggested to be due to their wide array of immunomodulatory effects and influence on the immune system of the human body. Phytochemicals such as flavonoids, polysaccharides, lactones, alkaloids, diterpenoids and glycosides, present in several plants, have been reported to be responsible for the plants immunomodulating properties. Thus the search for natural products of plant origin as new leads for development of potent and safe immunosuppressant and immunostimulant agents is gaining much major research interest. The present review will give an overview of widely investigated plant-derived compounds (curcumin, resveratrol, epigallocatechol-3-gallate, quercetin, colchicine, capsaicin, andrographolide, and genistein) which have exhibited potent effects on cellular and humoral immune functions in pre-clinical investigations and will highlight their clinical potential.
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Affiliation(s)
- Ibrahim Jantan
- *Correspondence: Ibrahim Jantan, Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia,
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Zhang S, Cui N, Li S, Guo L, Wu Y, Zhu D, Jiang C. Interception of the endotoxin-induced arterial hyporeactivity to vasoconstrictors. Vascul Pharmacol 2014; 62:15-23. [PMID: 24792896 DOI: 10.1016/j.vph.2014.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 04/20/2014] [Accepted: 04/22/2014] [Indexed: 01/01/2023]
Abstract
Septic shock is a severe pathophysiologic condition characterized by vasodilation, hypotension, hypoperfusion, tissue hypoxia, multiple organ failure and death. It is unclear what causes the septic vasodilation that may result from general dysfunction of vascular smooth muscles (VSMs) or selective disruption of vasomotor balances in VSMs. The latter could be due to enhanced vasorelaxation and/or depressed vasoconstriction. Understanding these may lead to pharmacological interventions to septic vasodilation. Therefore, we performed studies in isolated and perfused mesenteric arterial rings. A 20-h exposure of the rings to lipopolysaccharide (LPS, 1 μg/ml) led to hyporeactivity to phenylephrine (PE). However, the responses of the LPS-treated rings to high concentrations of KCl (60 mM) and ATP remained comparable to control rings, suggesting that contractility of VSMs is retained. The hyporeactivity was marginally affected by atropine, indomethacin and L-NAME, suggesting that endothelium-dependent vasorelaxation does not play a major role. In addition to PE, the LPS-treated rings were hyporeactive to dopamine, histamine and angiotensin II. They showed intermediate hyporeactivity to the thromboxane-A2 receptor agonist U46619. Little hyporeactivity to endothelin-1 (ET-1), serotonin (5-HT) and vasopressin was found. ET-1-induced vasoconstriction occurred without endothelium, whereas the effect of 5-HT was endothelium dependent. Although rings were hyporeactive to some of the vasopressors, their vasoconstriction effects were significantly potentiated by PE co-application. Taken together, these data suggest that the endotoxin-induced vasodilation may not result from general dysfunction of VSMs, neither from the endothelium-dependent vasorelaxation. The promising vascular response to various vasoconstrictors found in this study warrants further investigations of therapeutic potentials of these agents.
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Affiliation(s)
- Shuang Zhang
- Department of Biology, Georgia State University, Atlanta, GA 30302-4010, United States
| | - Ningren Cui
- Department of Biology, Georgia State University, Atlanta, GA 30302-4010, United States
| | - Shanshan Li
- Department of Biology, Georgia State University, Atlanta, GA 30302-4010, United States
| | - Lei Guo
- Harbin Medical University at Daqing, Daqing, Heilongjiang, China
| | - Yang Wu
- Department of Biology, Georgia State University, Atlanta, GA 30302-4010, United States
| | - Daling Zhu
- Harbin Medical University at Daqing, Daqing, Heilongjiang, China
| | - Chun Jiang
- Department of Biology, Georgia State University, Atlanta, GA 30302-4010, United States.
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Palanisamy N, Venkataraman AC. Beneficial effect of genistein on lowering blood pressure and kidney toxicity in fructose-fed hypertensive rats. Br J Nutr 2013; 109:1806-12. [PMID: 23116847 DOI: 10.1017/s0007114512003819] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The study evaluates the effects of genistein on blood pressure (BP) and ultrastructural changes in kidney of fructose-fed hypertensive rats. Male Wistar rats were fed a diet containing 60 % starch or 60 % fructose as the source of carbohydrate. After 15 d, rats in each dietary group were divided into two groups and were treated with either genistein (1 mg/kg per d) in dimethylsulfoxide (DMSO) or 30 % DMSO alone. BP, pressor mechanisms, protein kinase C-βII (PKC-βII) expression, endothelial NO synthase (eNOS) expression and renal ultrastructural changes were evaluated after 60 d. Fructose-fed rats displayed significant elevation in BP and heart rate. Significant increase in plasma angiotensin-converting enzyme (ACE) activity, alterations in renal lipid profile, nitrite and kallikrein activity, enhanced expression of membrane-associated PKC-βII and decreased expression of eNOS were observed in them. Histology and electron microscopic studies showed structural changes in the kidney. Genistein administration lowered BP, restored ACE, PKC-βII and eNOS expression and preserved renal ultrastructural integrity. These findings demonstrate that genistein has effects on eNOS activity in renal cells, leading to eNOS activation and NO synthesis. These effects could have been mediated by activation of PKC-βII. The observed benefits of genistein make it a promising candidate for therapy of diabetic kidney disease.
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Affiliation(s)
- Nallasamy Palanisamy
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India.
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Abstract
Over the past few decades, inflammation has been recognized as a major risk factor for various human diseases. Acute inflammation is short-term, self-limiting and it's easy for host defenses to return the body to homeostasis. Chronic inflammatory responses are predispose to a pathological progression of chronic illnesses characterized by infiltration of inflammatory cells, excessive production of cytokines, dysregulation of cellular signaling and loss of barrier function. Targeting reduction of chronic inflammation is a beneficial strategy to combat several human diseases. Flavonoids are widely present in the average diet in such foods as fruits and vegetables, and have been demonstrated to exhibit a broad spectrum of biological activities for human health including an anti-inflammatory property. Numerous studies have proposed that flavonoids act through a variety mechanisms to prevent and attenuate inflammatory responses and serve as possible cardioprotective, neuroprotective and chemopreventive agents. In this review, we summarize current knowledge and underlying mechanisms on anti-inflammatory activities of flavonoids and their implicated effects in the development of various chronic inflammatory diseases.
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Affiliation(s)
- Min-Hsiung Pan
- Department of Seafood Science, National Kaohsiung Marine University, No.142, Haijhuan Rd., Nanzih District, Kaohsiung, 81143, Taiwan.
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Polyphenols in the prevention and treatment of sepsis syndromes: Rationale and pre-clinical evidence. Nutrition 2009; 25:981-97. [DOI: 10.1016/j.nut.2009.02.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2008] [Revised: 02/16/2009] [Accepted: 02/26/2009] [Indexed: 12/17/2022]
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Vera R, Jiménez R, Lodi F, Sánchez M, Galisteo M, Zarzuelo A, Pérez-Vizcaíno F, Duarte J. Genistein restores caveolin-1 and AT-1 receptor expression and vascular function in large vessels of ovariectomized hypertensive rats. Menopause 2007; 14:933-40. [PMID: 17667142 DOI: 10.1097/gme.0b013e31802d9785] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The soy-derived phytoestrogen genistein improves endothelial function in postmenopausal women and ovariectomized (OVX) normotensive rats. We hypothesized that genistein would improve vascular reactivity involving changes in endothelial nitric oxide synthase (NOS) expression and its regulatory proteins (caveolin and calmodulin), angiotensin II receptor, and/or oxidative status in OVX spontaneously hypertensive rats (SHRs). DESIGN After ovariectomy or sham operation, 23-week-old female SHRs received either 17beta-estradiol (2 mg/kg/wk SC), genistein (10 mg/kg/d by gavage), or placebo. RESULTS In OVX rats, final body weight was increased and uterus weight was decreased, and these values were reduced and increased, respectively, by 17beta-estradiol but unaffected by genistein. Acetylcholine-induced endothelium-dependent vasorelaxation was significantly blunted in aortas from OVX placebo SHRs. The contractions induced by the NOS inhibitor L-NAME and angiotensin II in OVX placebo were lower and higher, respectively, than in sham rats. Estradiol and genistein restored these functional changes. Aortic endothelial NOS and calmodulin-1 expression were unchanged, whereas caveolin-1 and angiotensin II receptor expression was increased in OVX rats. Estradiol and genistein treatment did not modify endothelial NOS, but normalized caveolin-1 and angiotensin II receptor and increased calmodulin-1 expression. Vascular superoxide production was increased in OVX placebo and normalized by both estradiol and genistein. CONCLUSIONS Genistein prevented all cardiovascular changes induced by estrogen depletion in SHRs to a similar extent as estradiol but had no uterotrophic effect. The present findings may help to explain the potential benefits of genistein as a therapeutic agent for preventing menopausal vascular complications, especially in hypertensive women.
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Affiliation(s)
- Rocio Vera
- Department of Pharmacology, School of Pharmacy, University of Granada, Granada, Spain
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Kox M, Wijetunge S, Pickkers P, Hughes AD. Inhibition of Src family tyrosine kinases prevents lipopolysaccharide-induced hyporeactivity in isolated rat tail arteries. Vascul Pharmacol 2007; 46:195-200. [PMID: 17113356 DOI: 10.1016/j.vph.2006.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2006] [Accepted: 10/03/2006] [Indexed: 11/28/2022]
Abstract
Tyrosine kinases may play a role in the vascular response to sepsis. We investigated the effect of selective inhibitors of Src family tyrosine kinases (SFK) on lipopolysaccharide (LPS)-induced vascular hyporeactivity. Rat tail artery segments were mounted in an isometric wire myograph. The effect of incubation with LPS was examined on phenylephrine (PE) and high potassium (KPSS)-induced contraction, with and without the selective SFK inhibitors SU6656 or PP1. Western blotting was performed to assess SFK phosphorylation and iNOS induction. Incubation with LPS for 18 h induced marked vascular hyporeactivity to both PE (p<0.001) and KPSS (P<0.001). Incubation with SU6656 alone had no effect on contractility to PE and KPSS, and SU6656 partially prevented LPS-induced hyporeactivity to PE (p<0.01) and KPSS (p<0.001). In contrast, PP1 alone diminished contractility to PE (p<0.01) and KPSS (p<0.001), and co-incubation of LPS with PP1 completely prevented LPS-induced hyporeactivity. LPS increased tyrosine phosphorylation of SFK and this effect was inhibited by SFK inhibitors. LPS also increased levels of iNOS and this was also inhibited by SU6656 and PP1. LPS-induced hyporeactivity in vitro is mediated by activation of SFK. Selective inhibitors of SFK may have therapeutic potential in the management of septic shock.
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Affiliation(s)
- Matthijs Kox
- Clinical Pharmacology, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, QEQM Wing, St Mary's Hospital, South Wharf Road, London W2 1NY, UK
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Vera R, Sánchez M, Galisteo M, Villar IC, Jimenez R, Zarzuelo A, Pérez-Vizcaíno F, Duarte J. Chronic administration of genistein improves endothelial dysfunction in spontaneously hypertensive rats: involvement of eNOS, caveolin and calmodulin expression and NADPH oxidase activity. Clin Sci (Lond) 2007; 112:183-91. [PMID: 17007611 DOI: 10.1042/cs20060185] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The soya-derived phytoestrogen genistein has been suggested to be protective in cardiovascular diseases. In the present study, we have analysed whether chronic oral genistein might influence endothelial function in male SHRs (spontaneously hypertensive rats) via ERs (oestrogen receptors), changes in eNOS (endothelial NO synthase) activity and vascular O(2)(-) (superoxide) production. Rats (23-weeks old) were divided into the following groups: WKY (Wistar-Kyoto)-vehicle, SHR-vehicle, WKY-genistein (10 mg.kg(-1) of body weight.day(-1)); SHR-genistein; SHR-genistein-faslodex (ICI 182780; 2.5 mg.kg(-1) of body weight.day(-1)). Vascular expression of eNOS, caveolin-1 and calmodulin-1 were analysed by Western blotting, eNOS activity by conversion of [(3)H]arginine into L-[(3)H]citrulline and O(2)(-) production by chemoluminescence of lucigenin. In SHRs, after 5 weeks of treatment, genistein reduced systolic blood pressure and enhanced endothelium-dependent aortic relaxation to acetylcholine, but had no effect on the vasodilator responses to sodium nitroprusside. Compared with WKY rats, SHRs had up-regulated eNOS and down-regulated caveolin-1 and calmodulin-1 expression, increased NADPH-induced O(2)(-) production, but reduced eNOS activity. Genistein increased aortic calmodulin-1 protein abundance and eNOS activity, and reduced NADPH-induced O(2)(-) production in SHRs. The pure ERalpha and ERbeta antagonist faslodex did not modify any of the changes induced by genistein in SHRs, suggesting that these effects are unrelated to ER stimulation. In conclusion, genistein reduced the elevated blood pressure and endothelial dysfunction in SHRs. This latter effect appears to be related to increased eNOS activity associated with increased calmodulin-1 expression and decreased O(2)(-) generation.
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Affiliation(s)
- Rocio Vera
- Department of Pharmacology, School of Pharmacy, University of Granada, 18071 Granada, Spain
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Rosier Olimpio Pereira I, Saes Parra Abdalla D. Soy isoflavones reduce heat shock proteins in experimental atherosclerosis. Eur J Nutr 2006; 45:178-86. [PMID: 16307374 DOI: 10.1007/s00394-005-0581-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2005] [Accepted: 07/27/2005] [Indexed: 10/25/2022]
Abstract
BACKGROUND Soy isoflavones may affect several biochemical pathways like the synthesis of nitric oxide (*NO) and heat shock proteins (HSP) that are important factors for atherosclerosis development. THE AIM OF THE STUDY The purpose of this study was to investigate the influence of soy isoflavones on the production of *NO and HSP60, HSP70 and HSC70 in experimental atherosclerosis. METHODS One group of rabbits (New Zealand) was fed an atherogenic diet containing 27 % casein (CAS) and another group was fed the same diet supplemented with soy isoflavones (5 mg/kg/day) (ISO). Blood samples were obtained monthly and after six months of feeding, the rabbits were sacrificed and the aortas were removed. RESULTS The ISO group showed a significant reduction of cholesterol in LDL (36.2 %) and in aorta (36 %), as well as, an increase of HDL-cholesterol (2.1 times) in relation to the CAS group. The concentration of *NO metabolites (NOx) in blood plasma and the levels of reactive antibodies to HSC70 in blood plasma and to HSC70 and HSP70 in aortic tissue were significantly decreased in the ISO group. Isoflavones promoted a reduction of content of HSP60, HSP70 and HSC70 in aortic arch analyzed by immunohistochemistry. The isoflavone supplementation promoted a reduction of cholesterol content in aorta (62.2 %) (p < 0.05). CONCLUSIONS Soy isoflavones reduced hypercholesterolemia, the production of HSP60, HSC70 and HSP70 and reactive antibodies to HSC70 in serum and to HSC70 and HSP70 in aorta, as well as, the cholesterol content in atherosclerotic lesions in rabbits fed a casein-based atherogenic diet.
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Affiliation(s)
- I Rosier Olimpio Pereira
- Department of Foods and Experimental Nutrition, School of Pharmaceutical Science, University of São Paulo, São Paulo, Brazil
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Bluth MH, Kandil E, Mueller CM, Shah V, Lin YY, Zhang H, Dresner L, Lempert L, Nowakowski M, Gross R, Schulze R, Zenilman ME. Sophorolipids block lethal effects of septic shock in rats in a cecal ligation and puncture model of experimental sepsis*. Crit Care Med 2006; 34:188-95. [PMID: 16374148 DOI: 10.1097/01.ccm.0000196212.56885.50] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Sophorolipids, a family of natural and easily chemoenzymatically modified microbial glycolipids, are promising modulators of the immune response. The potential of the therapeutic effect of sophorolipids was investigated in vivo in a rat model of sepsis and in vitro by analysis of nitric oxide and cytokine production. DESIGN Prospective, randomized animal study. SETTING Experimental laboratory. SUBJECTS Male Sprague-Dawley rats, 200-240 g. INTERVENTIONS Intra-abdominal sepsis was induced in vivo in 166 rats via cecal ligation and puncture (CLP); 60 rats were used to characterize the model. The remaining rats were treated with sophorolipids or vehicle (dimethylsulfoxide [DMSO]/physiologic saline) by intravenous (iv) tail vein or intraperitoneal (IP) injection immediately post-CLP (25/group). Survival rates were compared at 36 hrs after surgery. In vitro, macrophages were cultured in lipopolysaccharide (LPS) +/- sophorolipid and assayed for nitric oxide (NO) production and gene expression profiles of inflammatory cytokines. In addition, splenic lymphocytes isolated from CLP rats +/- sophorolipid treatment (three per group) were analyzed for cytokine production by RNase protection assay. MEASUREMENTS AND MAIN RESULTS CLP with 16-gauge needles optimized sepsis induction and resultant mortality. Sophorolipid treatment improved rat survival by 34% (iv) and 14% (IP) in comparison with vehicle controls (p < .05 for iv treatment). Sophorolipids decreased LPS-induced macrophage NO production by 28% (p < .05). mRNA expression of interleukin (IL)-1beta was downregulated by 42.5 +/- 4.7% (p < .05) and transforming growth factor (TGF)-beta1 was upregulated by 11.7 +/- 1.5% (p < .05) in splenocytes obtained 6 hrs postsophorolipid treatment. LPS-treated macrophages cultured 36 hrs with sophorolipids showed increases in mRNA expression of IL-1alpha (51.7%), IL-1beta (31.3%), and IL-6 (66.8%) (p < .05). CONCLUSIONS Administration of sophorolipids after induction of intra-abdominal sepsis significantly decreases mortality in this model. This may be mediated in part by decreased macrophage NO production and modulation of inflammatory responses.
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Affiliation(s)
- Martin H Bluth
- SUNY Downstate Medical Center, Department of Surgery, Brooklyn, NY 11203, USA.
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Vera R, Galisteo M, Villar IC, Sánchez M, Zarzuelo A, Pérez-Vizcaíno F, Duarte J. Soy Isoflavones Improve Endothelial Function in Spontaneously Hypertensive Rats in an Estrogen-Independent Manner: Role of Nitric-Oxide Synthase, Superoxide, and Cyclooxygenase Metabolites. J Pharmacol Exp Ther 2005; 314:1300-9. [PMID: 15958720 DOI: 10.1124/jpet.105.085530] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to analyze the effects of the isoflavones genistein and daidzein, and the mammalian estrogen 17beta-estradiol on endothelial function in isolated aortic rings from male spontaneously hypertensive rats (SHR) and Wistar Kyoto rats (WKY). Relaxation to acetylcholine on precontracted rings was impaired and endothelium-dependent contraction to acetylcholine in aortic rings was increased in SHR compared with WKY. Aortic NADPH-stimulated O(2)(-) release and prostaglandin (PG)H(2) production evoked by acetylcholine were increased, whereas nitric-oxide synthase activity was reduced in SHR versus WKY. Genistein, daidzein, or 17beta-estradiol enhanced the relaxant response to acetylcholine and decreased the endothelium-dependent vasoconstrictor responses to acetylcholine in SHR, but not in WKY, and these effects were not modified by the estrogen receptor antagonist ICI 182,780 (7alpha,17beta-[9[(4,4,5,5,5-pentafluoropentyl)-sulfinyl]nonyl]estra-1,3,5(10)-triene-3,17-diol). Moreover, isoflavones enhanced nitric-oxide (NO) synthase activity and inhibited NADPH-stimulated O(2)(-) roduction and endothelial release of PGH(2). The contractions induced by the TP receptor agonist U46619 (9,11-dideoxy-11alpha,9alpha-epoxymethanoprostaglandin F(2alpha)) in denuded aortic rings were inhibited by genistein, daidzein, and 17beta-estradiol in both strains. In conclusion, the isoflavones genistein and daidzein and 17beta-estradiol restore endothelial function in male SHR through estrogen receptor-independent mechanisms. Increased NO production and protection of NO from O(2)(-)-driven inactivation might be involved in the improvement of vascular relaxation to acetylcholine in aortic rings from SHR. Moreover, isoflavones and 17beta-estradiol inhibited aortic endothelium-dependent contraction to acetylcholine in SHR by reducing the endothelial PGH(2) release and its vasoconstrictor response.
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Affiliation(s)
- Rocío Vera
- Department of Pharmacology, School of Pharmacy, University of Granada, Spain
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