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Arumugam GS, Sen A, Dash SS, Mitra K, Doble M, Rajaraman G, Gummadi SN. Arjunetin as a promising drug candidate against SARS-CoV-2: molecular dynamics simulation studies. J Biomol Struct Dyn 2022; 40:12358-12379. [PMID: 34533107 PMCID: PMC8459932 DOI: 10.1080/07391102.2021.1970627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Stem and bark of the tree Terminalia arjuna Wight & Arn. (Combretaceae) has been documented to exhibit therapeutic properties like cardiotonic, anticancer, antiviral, antibacterial, antifungal, hypercholesterolemia, hypolipidemic, and anti-coagulant. Our previous studies have shown that, ethanolic extract of T. arjuna bark exhibits radical scavenging anti-oxidant activity and also effectively inhibited catalase activity. In this study, oleanane triterpenoids type compounds viz., oleanolic acid, arjunolic acid, arjunolitin, arjunetin were isolated from ethanolic bark extract as bio-active compound and their structures were elucidated using 1H, 13C NMR, HR-ESIMS, IR. Of the various compounds, Arjunetin showed significant inhibition of catalase activity as compared to the other compounds. Based on the structural similarity between arjunetin and current antiviral drugs, we propose that arjunetin might exhibit antiviral activity. Molecular docking and molecular dynamics studies showed that arjunetin binds to the binds to key targets of SARS-CoV-2 namely, 3CLpro, PLpro, and RdRp) with a higher binding energy values (3CLpro, -8.4 kcal/mol; PLpro, -7.6 kcal/mol and RdRp, -8.1 kcal/mol) as compared with FDA approved protease inhibitor drugs to Lopinavir (3CLpro, -7.2 kcal/mole and PLpro -7.7 kcal/mole) and Remdesivir (RdRp -7.6 kcal/mole). To further investigate this, we performed 200-500 ns molecular dynamics simulation studies. The results transpired that the binding affinity of Arjunetin is higher than Remdesivir in the RNA binding cavity of RdRp. Based on structural similarity between arjunetin and Saikosaponin (a known antiviral agents) and based on our molecular docking and molecular dynamic simulation studies, we propose that arjunetin can be a promising drug candidate against Covid-19.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Gandarvakottai Senthilkumar Arumugam
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Applied and Industrial Microbiology Laboratory, Indian Institute of Technology Madras, Chennai, India
| | - Asmita Sen
- Department of Chemistry, Molecular Modelling Group (MMG), Indian Institute of Technology Bombay, Powai, Mumbai, India
| | - Swati S. Dash
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Applied and Industrial Microbiology Laboratory, Indian Institute of Technology Madras, Chennai, India
| | - Kartik Mitra
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Drug Design Laboratory, Indian Institute of Technology Madras, Chennai, India
| | - Mukesh Doble
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Drug Design Laboratory, Indian Institute of Technology Madras, Chennai, India
| | - Gopalan Rajaraman
- Department of Chemistry, Molecular Modelling Group (MMG), Indian Institute of Technology Bombay, Powai, Mumbai, India,Rajaraman Gopalan Department of Chemistry, Molecular Modelling Group (MMG), Indian Institute of Technology Bombay, Powai, Mumbai400076, India
| | - Sathyanarayana N. Gummadi
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Applied and Industrial Microbiology Laboratory, Indian Institute of Technology Madras, Chennai, India,CONTACT Sathyanarayana N. Gummadi Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Applied and Industrial Microbiology Laboratory, Indian Institute of Technology Madras, Chennai, 600 036, India;
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Bachheti RK, Worku LA, Gonfa YH, Zebeaman M, Deepti, Pandey DP, Bachheti A. Prevention and Treatment of Cardiovascular Diseases with Plant Phytochemicals: A Review. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:5741198. [PMID: 35832515 PMCID: PMC9273387 DOI: 10.1155/2022/5741198] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 05/27/2022] [Accepted: 06/02/2022] [Indexed: 12/19/2022]
Abstract
Cardiovascular diseases (CVDs) are the world's leading killers, accounting for 30% deaths. According to the WHO report, CVDs kill 17.9 million people per year, and there will be 22.2 million deaths from CVD in 2030. The death rates rise as people get older. Regarding gender, the death rate of women by CVD (51%) is higher than that of men (42%). To decrease and prevent CVD, most people rely on traditional medicine originating from the plant (phytochemicals) in addition to or in preference to commercially available drugs to recover from their illness. The CVD therapy efficacy of 92 plants, including 15 terrestrial plants, is examined. Some medicinal plants well known to treat CVD are, Daucus carota, Nerium oleander, Amaranthus Viridis, Ginkgo biloba, Terminalia arjuna, Picrorhiza kurroa, Salvia miltiorrhiza, Tinospora cordifolia, Mucuna pruriens, Hydrocotyle asiatica, Bombax ceiba, and Andrographis paniculate. The active phytochemicals found in these plants are flavonoids, polyphenols, plant sterol, plant sulphur compounds, and terpenoids. A general flavonoid mechanism of action is to prevent low-density lipoprotein oxidation, which promotes vasodilatation. Plant sterols prevent CVD by decreasing cholesterol absorption in the blood. Plant sulphur compound also prevent CVD by activation of nuclear factor-erythroid factor 2-related factor 2 (Nrf2) and inhibition of cholesterol synthesis. Quinone decreases the risk of CVD by increasing ATP production in mitochondria while terpenoids by decreasing atherosclerotic lesion in the aortic valve. Although several physiologically active compounds with recognized biological effects have been found in various plants because of the increased prevalence of CVD, appropriate CVD prevention and treatment measures are required. More research is needed to understand the mechanism and specific plants' phytochemicals responsible for treating CVD.
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Affiliation(s)
- Rakesh Kumar Bachheti
- Bioprocess and Biotechnology Center of Excellence, Addis Ababa Sciences and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia
- Department of Industrial Chemistry, College of Applied Sciences, Addis Ababa Sciences and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia
| | - Limenew Abate Worku
- Bioprocess and Biotechnology Center of Excellence, Addis Ababa Sciences and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia
- Department of Industrial Chemistry, College of Applied Sciences, Addis Ababa Sciences and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia
| | - Yilma Hunde Gonfa
- Bioprocess and Biotechnology Center of Excellence, Addis Ababa Sciences and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia
- Department of Chemistry, Faculty of Natural and Computational Science, Ambo University, Ambo, Ethiopia
| | - Meseret Zebeaman
- Bioprocess and Biotechnology Center of Excellence, Addis Ababa Sciences and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia
- Department of Industrial Chemistry, College of Applied Sciences, Addis Ababa Sciences and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia
| | - Deepti
- Department of Environment Science, Graphic Era University, Dehradun-248002, Uttarakhand, India
| | - D. P. Pandey
- Department of Chemistry, Government P. G. College, Uttarkashi, India
| | - Archana Bachheti
- Department of Environment Science, Graphic Era University, Dehradun-248002, Uttarakhand, India
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Ruangchuay S, Wang QQ, Wang LY, Lin J, Wang YC, Zhong GH, Maneenoon K, Huang ZB, Chusri S. Antioxidant and antiaging effect of traditional Thai rejuvenation medicines in Caenorhabditis elegans. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2021; 19:362-373. [PMID: 33789838 DOI: 10.1016/j.joim.2021.03.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 12/19/2020] [Indexed: 01/15/2023]
Abstract
OBJECTIVE This study explored the rejuvenation mechanisms of Thai polyherbal medicines using different approaches, including in vitro methods, as well as a well-defined nematode model, Caenorhabditis elegans. METHODS THP-R-SR012 decoction was selected from 23 polyherbal medicines, based on metal-chelating and chain-breaking antioxidant capacities. The influences of this extract on the survival and some stress biomarkers of C. elegans under paraquat-induced oxidative stress were evaluated. Furthermore, lifespan analysis and levels of lipofuscin accumulation were examined in senescent nematodes. The phytochemical profile of THP-R-SR012 was analyzed. RESULTS Supplementation with THP-R-SR012 decoction significantly increased the mean lifespan and reduced the oxidative damage to C. elegans under oxidative stress conditions. Further, THP-R-SR012 supplementation slightly influenced the lifespan and the level of lipofuscin accumulation during adulthood. Antioxidant-related phytochemical constituents of THP-R-SR012 decoction were rutin, naringenin, 3,4-dihydroxybenzoic acid, gallic acid, glycyrrhizic acid, demethoxycurcumin and 18α-glycyrrhetinic acid. CONCLUSION The antioxidant potential of THP-R-SR012 was due to its scavenging properties, its enhancement of antioxidant-related enzyme activities, and the presence of the antioxidant-related compound. These results support the traditional use of THP-R-SR012 decoction as a tonic for nourishing and strengthening the whole body.
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Affiliation(s)
- Sutticha Ruangchuay
- Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand; School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong Province, China
| | - Qiang-Qiang Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong Province, China
| | - Liang-Yi Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong Province, China; Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong Province, China
| | - Jing Lin
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong Province, China; Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong Province, China
| | - Yong-Chao Wang
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong Province, China
| | - Guo-Huan Zhong
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong Province, China
| | - Katesarin Maneenoon
- Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Ze-Bo Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong Province, China; Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong Province, China
| | - Sasitorn Chusri
- Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand; Natural Product Research Center of Excellence, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand; School of Health Science, Mae Fah Luang University, Muang, Chiang Rai 57100, Thailand.
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Oleic Acid Prevents Isoprenaline-Induced Cardiac Injury: Effects on Cellular Oxidative Stress, Inflammation and Histopathological Alterations. Cardiovasc Toxicol 2020; 20:28-48. [PMID: 31154622 DOI: 10.1007/s12012-019-09531-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The present study was designed to assess the cardio-protective role of oleic acid in myocardial injury (MI) induced by intra-peritoneal injection of isoprenaline (ISO) in rats for 2 consecutive days. Oleic acid (OA) was administered orally (@ 5 mg/kg b.wt and 10 mg/kg b.wt) for 21 days before inducing MI. Pre-exposure to OA at higher dose significantly improved the HW/BW ratio, myocardial infarct size, lipid profiles (total cholesterol, HDL-C) and cardiac injury biomarkers (LDH, CK-MB, cardiac troponin-I, MMP-9), thus suggesting its cardio-protective role. The ameliorative potential of the higher dose of OA was further substantiated by its ability to reduce the cardiac oxidative stress as evidenced by significant decrease in lipid peroxidation coupled with increase in superoxide dismutase activity and reduced glutathione level. Significant decrease in heart rate as well as increase in RR and QT intervals in oleic acid pre-exposed rats were also observed. OA pre-treatment also reduced the histopathological alterations seen in myocardial injury group rats. The mRNA expression of cardiac UCP-2 gene, a regulator of reactive oxygen species (ROS) generation, was significantly increased in oleic acid pre-exposure group compared to the ISO-induced myocardial injury group. Thus increase in expression of UCP-2 gene in cardiac tissue seems to be one of the protective measures against myocardial injury. Based on the above findings, it may be inferred that oleic acid possesses promising cardio-protective potential against myocardial injury due to its anti-oxidative property and ability to modulate cardiac metabolic processes.
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Srivastava G, Garg A, Misra RC, Chanotiya CS, Ghosh S. Transcriptome analysis and functional characterization of oxidosqualene cyclases of the arjuna triterpene saponin pathway. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 292:110382. [PMID: 32005387 DOI: 10.1016/j.plantsci.2019.110382] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 10/25/2019] [Accepted: 12/14/2019] [Indexed: 06/10/2023]
Abstract
Arjuna (Terminalia arjuna) tree has been popular in Indian traditional medicine to treat cardiovascular ailments. The tree accumulates bioactive triterpene glycosides (saponins) and aglycones (sapogenins), in a tissue-preferential manner. Oleanane triterpenes/saponins (derived from β-amyrin) with potential cardioprotective function predominantly accumulate in the bark. However, arjuna triterpene saponin pathway enzymes remain to be identified and biochemically characterized. Here, we employed a combined transcriptomics, metabolomics and biochemical approach to functionally define a suite of oxidosqualene cyclases (OSCs) that catalyzed key reactions towards triterpene scaffold diversification. De novo assembly of 131 millions Illumina NextSeq500 sequencing reads obtained from leaf and stem bark samples led to a total of 156,650 reference transcripts. Four distinct OSCs (TaOSC1-4) with 54-71 % sequence identities were identified and functionally characterized. TaOSC1, TaOSC3 and TaOSC4 were biochemically characterized as β-amyrin synthase, cycloartenol synthase and lupeol synthase, respectively. However, TaOSC2 was found to be a multifunctional OSC producing both α-amyrin and β-amyrin, but showed a preference for α-amyrin product. Both TaOSC1 and TaOSC2 produced β-amyrin, the direct precursor for oleanane triterpene/saponin biosynthesis; but, TaOSC1 transcript expressed preferentially in bark, suggesting a major role of TaOSC1 in the biosynthesis of oleanane triterpenes/saponins in bark.
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Affiliation(s)
- Gaurav Srivastava
- Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Anchal Garg
- Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Rajesh Chandra Misra
- Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Chandan Singh Chanotiya
- Chemical Sciences Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Sumit Ghosh
- Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India.
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Manu TM, Anand T, Pandareesh MD, Kumar PB, Khanum F. Terminalia arjuna extract and arjunic acid mitigate cobalt chloride-induced hypoxia stress-mediated apoptosis in H9c2 cells. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:1107-1119. [PMID: 31069430 DOI: 10.1007/s00210-019-01654-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 04/11/2019] [Indexed: 12/11/2022]
Abstract
Arjunic acid (AA) is one of the major active component of Terminalia arjuna known for its health benefits. In the present study, we evaluated cardioprotective potential of Terminalia arjuna extract (TAE) and AA against cobalt chloride (CoCl2)-induced hypoxia damage and apoptosis in rat cardiomyocytes. TAE (50 μg/ml) and AA (8 μg/ml) significantly (p < 0.001) protected H9c2 cells as evidenced by cell viability assays against CoCl2 (1.2 mM)-induced cytotoxicity. TAE and AA pretreatments protected the cells from oxidative damage by decreasing the generation of free radicals (ROS, hydroperoxide, and nitrite levels). TAE and AA pretreatments retained mitochondrial membrane potential by alleviating the rate of lipid peroxidation induced by CoCl2 treatment. TAE and AA pretreatments elevated antioxidant status including phase II antioxidant enzymes (superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase) and total glutathione levels against CoCl2-induced oxidative stress. Further immunoblotting studies confirmed anti-apoptotic effects of TAE and AA by alleviating the phosphorylation of JNK and c-jun and also by regulating protein expression levels of Bcl2, Bax, caspase 3, heat shock protein-70, and inducible nitric oxide synthase. Overall, our results suggest that both the extract and the active component exhibit antioxidant and anti-apoptotic defense against CoCl2-induced hypoxic injury.
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Affiliation(s)
- T Mohan Manu
- Nutrition, Biochemistry and Toxicology Division, Defence Food Research Laboratory, Mysuru, 570011, India
| | - T Anand
- Nutrition, Biochemistry and Toxicology Division, Defence Food Research Laboratory, Mysuru, 570011, India.
| | - M D Pandareesh
- Nutrition, Biochemistry and Toxicology Division, Defence Food Research Laboratory, Mysuru, 570011, India
| | - P Bhuvanesh Kumar
- Nutrition, Biochemistry and Toxicology Division, Defence Food Research Laboratory, Mysuru, 570011, India
| | - Farhath Khanum
- Nutrition, Biochemistry and Toxicology Division, Defence Food Research Laboratory, Mysuru, 570011, India
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Oleic acid ameliorates adrenaline induced dysfunction of rat heart mitochondria by binding with adrenaline: An isothermal titration calorimetry study. Life Sci 2019; 218:96-111. [DOI: 10.1016/j.lfs.2018.12.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 01/09/2023]
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Santos-Junior VDA, Lollo PCB, Cantero MA, Moura CS, Amaya-Farfan J, Morato PN. Heat Shock Proteins: Protection and Potential Biomarkers for Ischemic Injury of Cardiomyocytes After Surgery. Braz J Cardiovasc Surg 2019; 33:291-302. [PMID: 30043923 PMCID: PMC6089130 DOI: 10.21470/1678-9741-2017-0169] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 02/05/2018] [Indexed: 11/24/2022] Open
Abstract
The heat shock proteins are endogenous proteins with the ability to act as
molecular chaperones. Methods that provide cell protection by way of some damage
can positively influence the results of surgery. The present review summarizes
current knowledge concerning the cardioprotective role of the heat shock
proteins as occurs in heart damage, including relevant information about the
stresses that regulate the expression of these proteins and their potential role
as biomarkers of heart disease.
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Affiliation(s)
| | | | - Marcos Antonio Cantero
- Faculdade de Ciências da Saúde (FCS) da Universidade Federal da Grande Dourados (UFGD), Dourados, MS, Brazil
| | - Carolina Soares Moura
- Faculdade de Engenharia de Alimentos (FEA) da Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brazil
| | - Jaime Amaya-Farfan
- Faculdade de Engenharia de Alimentos (FEA) da Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brazil
| | - Priscila Neder Morato
- Faculdade de Engenharia de Alimentos (FEA) da Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brazil
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Allawadhi P, Khurana A, Sayed N, Kumari P, Godugu C. Isoproterenol-induced cardiac ischemia and fibrosis: Plant-based approaches for intervention. Phytother Res 2018; 32:1908-1932. [PMID: 30009418 DOI: 10.1002/ptr.6152] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 05/04/2018] [Accepted: 06/18/2018] [Indexed: 11/08/2022]
Abstract
Heart is the most active and incumbent organ of the body, which maintains blood flow, but due to various pathological reasons, several acute and chronic cardiac complications arise out of which myocardial infarction is one of the teething problems. Isoproterenol (ISP)-induced myocardial ischemia is a classical model to screen the cardioprotective effects of various pharmacological interventions. Phytochemicals present a novel option for treating various human maladies including those of the heart. A large number of plant products and their active ingredients have been screened for efficacy in ameliorating ISP-induced myocardial ischemia including coriander, curcumin, Momordica, quercetin, and Withania somnifera. These phytochemicals constituents may play key role in preventing disease and help in cardiac remodeling. Reactive oxygen species scavenging, antiinflammatory, and modulation of various molecular pathways such as Nrf2, NFкB, p-21 activated kinase 1 (PAK1), and p-smad2/3 signaling modulation have been implicated behind the claimed protection. In this review, we have provided a focused overview on the utility of ISP-induced cardiotoxicity, myocardial ischemia, and cardiac fibrosis for preclinical research. In addition, we have also surveyed molecular mechanism of various plant-based interventions screened for cardioprotective effect in ISP-induced cardiotoxicity, and their probable mechanistic profile is summarized.
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Affiliation(s)
- Prince Allawadhi
- Department of Pharmacology, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi, India
| | - Amit Khurana
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana State, India
| | - Nilofer Sayed
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana State, India
| | - Preeti Kumari
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana State, India
| | - Chandraiah Godugu
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana State, India
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Shengule SA, Mishra S, Joshi K, Apte K, Patil D, Kale P, Shah T, Deshpande M, Puranik A. Anti-hyperglycemic and anti-hyperlipidaemic effect of Arjunarishta in high-fat fed animals. J Ayurveda Integr Med 2017; 9:45-52. [PMID: 29249636 PMCID: PMC5884182 DOI: 10.1016/j.jaim.2017.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 07/01/2017] [Accepted: 07/20/2017] [Indexed: 12/21/2022] Open
Abstract
Background Arjunarishta (AA), a formulation used as cardiotonic is a hydroalcoholic formulation of Terminalia arjuna (Roxb.) Wight and Arn. (TA) belonging to family Combretaceae. Objective To evaluate the anti-hyperglycemic and anti-hyperlipidemic effect of Arjunarishta on high-fat diet fed animals. Materials and methods High-fat diet fed (HFD) Wistar rats were randomly divided into three groups and treated with phytochemically standardized Arjunarishta (1.8 ml/kg), and hydroalcoholic extract of T. arjuna (TAHA) (250 mg/kg) and rosuvastatin (10 mg/kg), for 3 months. Intraperitoneal glucose tolerance test, blood biochemistry, liver triglyceride and systolic blood pressure were performed in all the groups. Effect of these drugs on the expression of tumor necrosis factor-α (TNF-α) and insulin receptor substrate-1 (IRS-1) and peroxisome proliferators activated receptor γ coactivator 1-α (PGC-1α) were studied in liver tissue using Quantitative Real-time PCR. Results HFD increased fasting blood glucose, liver triglyceride, systolic blood pressure and gene expression of TNF-α, IRS-1 and PGC-1α. Treatment of AA and TAHA significantly reduced fasting blood glucose, systolic blood pressure, total cholesterol and triglyceride levels. These treatments significantly decreased gene expression of TNF-α (2.4, 2.2 and 2.6 fold change); increased IRS-1 (2.8, 2.9 and 2.8 fold change) and PGC-1α (2.9, 3.7 and 3.3 fold change) as compared to untreated HFD. Conclusion Anti-hyperglycemic, anti-hyperlipidemic effect of Arjunarishta may be mediated by decreased TNF-α and increased PGC-1α and IRS-1.
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Affiliation(s)
- Sushant A Shengule
- Dr. Prabhakar Kore Basic Science Research Centre, KLE Academy of Higher Education and Research (KLE University), Belagavi, Karnataka, India
| | - Sanjay Mishra
- Dr. Prabhakar Kore Basic Science Research Centre, KLE Academy of Higher Education and Research (KLE University), Belagavi, Karnataka, India
| | - Kalpana Joshi
- Department of Biotechnology, Sinhgad College of Engineering, Vadgoan (Bk), Pune, India.
| | - Kishori Apte
- APT Research Foundation, Vadgoan Khurd, Pune, India
| | - Dada Patil
- Serum Institute of India Research Foundation, Hadapsar, Pune, India
| | - Prathmesh Kale
- Serum Institute of India Research Foundation, Hadapsar, Pune, India
| | - Tejas Shah
- Dr. Prabhakar Kore Basic Science Research Centre, KLE Academy of Higher Education and Research (KLE University), Belagavi, Karnataka, India
| | | | - Amrutesh Puranik
- Department of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
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Kumar S, Jahangir Alam M, Prabhakar P, Ahmad S, Maulik SK, Sharma M, Goswami SK. Proteomic analysis of the protective effects of aqueous bark extract of Terminalia arjuna (Roxb.) on isoproterenol-induced cardiac hypertrophy in rats. JOURNAL OF ETHNOPHARMACOLOGY 2017; 198:98-108. [PMID: 28063919 DOI: 10.1016/j.jep.2016.12.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 12/12/2016] [Accepted: 12/31/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Aqueous bark extract of Terminalia arjuna (TA) has been in use as an ethnomedicine for cardiovascular ailments in the Indian subcontinent for centuries. Studies using hemodynamic, ROS scavenging and anti-inflammatory parameters in animal models have shown its anti-atherogenic, hypotensive, inotropic, anti-inflammatory effects. However, details analysis on its effects on established molecular and cell biological markers are a prerequisite for its wider acceptance to the medical community. AIMS OF THE STUDY To test the efficacy of TA extract in ameliorating cardiac hypertrophy induced by ISO in rats. METHODS Cardiac hypertrophy was induced by ISO (5mg/kg/day s.c. for 14 days) in rats and a standardized aqueous extract of TA stem bark was orally administered by gavage. Total RNA and protein were isolated from control, ISO, ISO plus TA and TA treated rat hearts and analyzed for the transcripts for the markers of hypertrophy, signaling kinases, transcription factors and total protein profile. RESULTS TA extract reversed the induction of fetal genes like β-myosin heavy chain, skeletal α-actin and brain natriuretic peptide in hypertrophic rat hearts. While ISO slightly increased the level of phospho-ERK, TA repressed it to about one third of the base line level. Survival kinase Akt, ER stress marker Grp78 and epigenetic regulator HDAC5 were augmented by ISO and TA restored them by various extents. ISO administration moderately increased the transcription factor NFκB binding activity, while coadministration of TA further increased it. AP-1 binding activity was largely unchanged by ISO treatment but it was upregulated when administered along with TA. MEF2D binding activity was increased by ISO and TA restored it to the baseline level. Global proteomic analysis revealed that TA treatment restored a subset of proteins up- and down-regulated in the hypertrophied hearts. Amongst those restored by TA were purinergic receptor X, myosin light chain 3, tropomyosin, and kininogen; suggesting a nodal role of TA in modulating cardiac function. CONCLUSIONS This study for the first time reveals that TA partially or completely restores the marker mRNAs, signaling kinases, transcription factors and total protein profile in rat heart, thereby demonstrating its efficacy in preventing ISO-induced cardiac hypertrophy.
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Affiliation(s)
- Santosh Kumar
- School of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, New Delhi 110067, India.
| | - Md Jahangir Alam
- School of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, New Delhi 110067, India.
| | - Pankaj Prabhakar
- Department of Pharmacology, All India Institute of Medical Sciences (A.I.I.M.S.), Ansari Nagar, 110029, New Delhi, India.
| | - Sayeed Ahmad
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi 110062, India.
| | - Subir K Maulik
- Department of Pharmacology, All India Institute of Medical Sciences (A.I.I.M.S.), Ansari Nagar, 110029, New Delhi, India.
| | - Manish Sharma
- Defence Institute of Physiology and Allied Sciences (DIPAS), Defence Research and Development Organization, Lucknow Road, Timarpur, Delhi 110054, India.
| | - Shyamal K Goswami
- School of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, New Delhi 110067, India.
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Amalraj A, Gopi S. Medicinal properties of Terminalia arjuna (Roxb.) Wight & Arn.: A review. J Tradit Complement Med 2017; 7:65-78. [PMID: 28053890 PMCID: PMC5198828 DOI: 10.1016/j.jtcme.2016.02.003] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 02/10/2016] [Accepted: 02/12/2016] [Indexed: 11/30/2022] Open
Abstract
Medicinal plants have been a main source of therapeutic agents from ancient time to cure diseases. Terminalia arjuna (Roxb.) Wight & Arn. (T. arjuna) is one of the most accepted and beneficial medicinal plants in indigenous system of medicine for the treatment of various critical diseases. This comprehensive review provides various aspects of its ethnomedical, phytochemical, pharmacognostical, pharmacological and clinical significance to different diseases particularly in cardiovascular conditions. This plant has a good safety outline when used in combination with other conventional drugs. This review highlights various medicinal properties of T. arjuna through different studies such as antioxidant, hypotensive, anti-atherogenic, anti-inflammatory, anti-carcinogenic, anti-mutagenic and gastro-productive effect.
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Affiliation(s)
| | - Sreeraj Gopi
- R&D Centre, Aurea Biolabs Pvt Ltd, Kolenchery, Cochin, India
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Bipat R, Toelsie JR, Magali I, Soekhoe R, Stender K, Wangsawirana A, Oedairadjsingh K, Pawirodihardjo J, Mans DRA. Beneficial effect of medicinal plants on the contractility of post-hypoxic isolated guinea pig atria - Potential implications for the treatment of ischemic-reperfusion injury. PHARMACEUTICAL BIOLOGY 2016; 54:1483-1489. [PMID: 26730936 DOI: 10.3109/13880209.2015.1107103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Context Ischemic-reperfusion injury is accompanied by a decreased contractility of the myocardium. Positive-inotropic agents have proven useful for treating this condition but may exert serious side-effects. Objective In this study, aqueous preparations from Abelmoschus esculentus L. Moench (Malvaceae), Annona muricata L. (Annonaceae), Bixa orellana L. (Bixaceae), Cecropia peltata L. (Moraceae), Erythrina fusca Lour. (Fabaceae), Psidium guajava L. (Myrtaceae) and Terminalia catappa L. (Combretaceae) were evaluated for their ability to improve the decreased contractility of isolated guinea pig atria after hypoxic stress. Materials and methods Guinea pig atria isolated in Ringer-Locke buffer gassed with 100% O2 at 30 °C were exposed for 5 min to hypoxia, then allowed to recover in oxygenated buffer alone or containing a single plant extract (0.001-1 mg/mL). The contractility (g/s) and beating frequency (beats/min), as well as troponin C contents of the bathing solution (ng/mL), were determined and expressed as means ± SDs. Results The extracts of A. muricata, B. orellana, C. peltata and T. catappa caused an increase in the contractility compared to untreated atria of 340 ± 102%, 151 ± 13%, 141 ± 14% and 238 ± 44%, respectively. However, the latter two preparations increased the troponin C contents of the bathing solution to 36 ± 11 and 69 ± 33, compared to the value of 11 ± 3 ng/mL found with untreated atria. Conclusions Preparations from A. muricata and B. orellana may possess positive-inotropic properties which may improve the contractility of the post-hypoxic myocardium. Studies to assess their usefulness in ischemic-reperfusion injury are warranted.
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Affiliation(s)
- Robbert Bipat
- a Department of Physiology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
| | - Jerry R Toelsie
- a Department of Physiology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
| | - Indira Magali
- a Department of Physiology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
- b Department of Pharmacology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
| | - Rubaina Soekhoe
- a Department of Physiology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
- b Department of Pharmacology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
| | - Karin Stender
- c Department of Pharmacy , University of Utrecht , Utrecht , The Netherlands
| | - Angelique Wangsawirana
- d Department of Clinical Chemistry , University of Groningen , Groningen , The Netherlands
| | - Krishan Oedairadjsingh
- a Department of Physiology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
- b Department of Pharmacology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
| | - Jennifer Pawirodihardjo
- a Department of Physiology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
- b Department of Pharmacology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
| | - Dennis R A Mans
- b Department of Pharmacology, Faculty of Medical Sciences , Anton de Kom University of Suriname , Paramaribo , Suriname
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Dianat M, Radmanesh E, Badavi M, Mard SA, Goudarzi G. Disturbance effects of PM₁₀ on iNOS and eNOS mRNA expression levels and antioxidant activity induced by ischemia-reperfusion injury in isolated rat heart: protective role of vanillic acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:5154-65. [PMID: 26552794 DOI: 10.1007/s11356-015-5759-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 11/03/2015] [Indexed: 05/08/2023]
Abstract
Myocardial infarction is the acute condition of myocardial necrosis that occurs as a result of imbalance between coronary blood supply and myocardial demand. Air pollution increases the risk of death from cardiovascular diseases (CVDs). The aim of this study was to investigate the effects of particulate matter (PM) on oxidative stress, the expression of inducible nitric oxide synthase (iNOS) and endothelial nitric oxide synthase (eNOS) messenger RNA (mRNA) level induced by ischemia-reperfusion injury, and the protective effects of vanillic acid (VA) in the isolated rat heart. Male Wistar rats were randomly divided into eight groups (n = 10), namely control, VAc, sham, VA, PMa (0.5 mg/kg), PMb (2.5 mg/kg), PMc (5 mg/kg), and PMc + VA groups. Particles with an aerodynamic diameter <10 μm (PM10) was instilled into the trachea through a fine intubation tube. Two days following the PM10 instillation, the animal's hearts were isolated and transferred to a Langendorff apparatus. The hearts were subjected to 30 min of global ischemia followed by 60 min of reperfusion. The activities of superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT), xanthine oxidase (XOX), and lactate dehydrogenase (LDH) were measured using special kits. Reverse transcription polymerase chain reaction (RT-PCR) was used to determine levels of iNOS and eNOS mRNA. An increase in left ventricular end-diastolic pressure (LVEDP), S-T elevation, and oxidative stress in PM10 groups was observed. Ischemia-reperfusion (I/R) induction showed a significant augment in the expression of iNOS mRNA level and a significant decrease in the expression eNOS mRNA level. This effect was more pronounced in the PM groups than in the control and sham groups. Vanillic acid caused a significant decrease in LVEDP, S-T elevation, and also a significant difference in eNOS mRNA expression level, antioxidant enzymes, iNOS mRNA expression level, and oxidative stress occurred on myocardial dysfunction after I/R in isolated rat hearts. This study showed that PM10 exposure had devastating effects on the myocardial heart, oxidative stress, and eNOS and iNOS mRNA expression levels. Vanillic acid was able to improve these parameters. Vanillic acid as a potent antioxidant could also provide protection against particulate matter-induced toxicity.
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Affiliation(s)
- Mahin Dianat
- Physiology Research Center, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Esmat Radmanesh
- Physiology Research Center, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Mohammad Badavi
- Physiology Research Center, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyed Ali Mard
- Physiology Research Center, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Gholamraza Goudarzi
- Department of Environmental Health Engineering, Health Faculty, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Karunakaran G. Cardioprotective role of methanolic extract of bark of Terminalia arjuna against in-vitro model of myocardial ischemic-reperfusion injury. Anc Sci Life 2015; 35:79-84. [PMID: 26865739 PMCID: PMC4728868 DOI: 10.4103/0257-7941.171674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The present study was designed to investigate the cardio protective role of chronic oral administration of methanolic extract of Terminalia arjuna bark in in-vitro myocardial ischemic reperfusion injury and the induction of HSP72. MATERIALS AND METHODS Rats, divided into three groups, and were administered with the methanolic extract of the bark powder of Terminalia arjuna (TAME) by oral gavage (6.75 and 9.75 mg/kg: 6 days/week for 12 weeks). Control and TAME extract treated rat hearts were subjected to in-vitro global ischemic reperfusion injury (5 min perfusion, 9 min noflow and 12 min reperfusion). RESULTS Oxidative stress in MIRI was evidenced by, raised levels of myocardial TBARS and depletion of endogenous myocardial antioxidants GSH, SOD and catalase. Western blot analysis showed a single band corresponding to 72 kDa in homogenates of hearts from rat treated with both the doses. In the methanolic extract of the bark powder of Terminalia arjuna treatment groups, both the doses had better recovery of myocardial function, with significant reduction in TBARS, and rise in SOD, GSH, catalase were observed. CONCLUSION The results of the present study suggest that the methanolic extract of the bark powder of Terminalia arjuna in rat induces myocardial HSP72 and augments myocardial endogenous antioxidants, without causing any cellular injury and offers better cardioprotection against oxidative stress associated with myocardial IR injury.
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Affiliation(s)
- Gauthaman Karunakaran
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 61441, Kingdom of Saudi Arabia
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Kapoor D, Vijayvergiya R, Dhawan V. Terminalia arjuna in coronary artery disease: ethnopharmacology, pre-clinical, clinical & safety evaluation. JOURNAL OF ETHNOPHARMACOLOGY 2014; 155:1029-1045. [PMID: 25014508 DOI: 10.1016/j.jep.2014.06.056] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 06/28/2014] [Accepted: 06/30/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Terminalia arjuna (Roxb.) Wight & Arn. is one of the most popular and beneficial medicinal plants in indigenous system of medicine for the treatment of cardiovascular diseases. This comprehensive review provides latest updates on traditional use, phytochemistry, pharmacological and toxicological data, clinical efficacy and safety of Terminalia arjuna as well as outlined strategies for future research and development to scientifically validate the therapeutic potential of this plant. MATERIALS AND METHODS Information about Terminalia arjuna was collected via a systematic electronic and library search of various indexed and non-indexed journals, some local books and varied articles published on ethnopharmacology, phytochemistry and traditional uses. Various pre-clinical (2000-2014) and clinical studies (1990-2014) have also been considered regarding efficacy and safety profile of Terminalia arjuna. RESULTS Evidence from various in vitro, in vivo and clinical trials reveal the pleiotropic effects of Terminalia arjuna such as anti-atherogenic, hypotensive, inotropic, anti-inflammatory, anti-thrombotic and antioxidant actions for treatment of various cardiovascular disorders. It is clearly documented that this plant has a good safety profile when used in conjunction with other conventional drugs. However, there is a paucity of data regarding the exact molecular mechanism of its action, appropriate form of drug administration, whether whole crude drug or aqueous or alcoholic extract should be used, toxicological studies and its interaction with other drugs. CONCLUSIONS In conclusion, this review highlights the importance as well as pleiotropic actions and functional aspects of Terminalia arjuna especially in cardiovascular diseases. Though, various pharmacological studies and clinical trials support its benefit in the CVD as per traditional use, new clinical trials using more rigorous state of the art technology and in a larger population setup are warranted to assess the traditional putative efficacy of Terminalia arjuna.
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Affiliation(s)
- Divya Kapoor
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Rajesh Vijayvergiya
- Department of Cardiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Veena Dhawan
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
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Dhanani T, Shah S, Kumar S. A validated high-performance liquid chromatography method for determination of tannin-related marker constituents gallic acid, corilagin, chebulagic acid, ellagic acid and chebulinic Acid in four Terminalia species from India. J Chromatogr Sci 2014; 53:625-32. [PMID: 25190275 DOI: 10.1093/chromsci/bmu096] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A validated rapid HPLC-PDA method was developed for identification and quantification of five tannin-related constituents gallic acid (GA), corilagin (CL), chebulagic acid (CB), ellagic acid (EA) and chebulinic acid (CN) in the extracts prepared from the bark and fruits of four Terminalia species available in India. The separation of the five analytes was achieved on an RP-18 column (4.6 × 250 mm, 5 µm) at 25°C using a solvent mixture comprising of acetonitrile and (0.05%) trifluoroacetic acid-water in a gradient elution mode. Limit of detection was 1.0, 0.5, 1.0, 0.5 and 1.0 μg/mL for GA, CL, CB, EA and CN, respectively. Similarly, limit of quantification was 2.5, 1.0, 2.5, 1.0 and 2.5 μg/mL for GA, CL, CB, EA and CN, respectively. Good linearity (r(2) > 0.992) was observed for all the five compounds in wide concentration range. Using the developed HPLC method, the five analytes were identified and quantified in bark and fruit extracts of Terminalia chebula, Terminalia bellirica, Terminalia arjuna and Terminalia catappa. This is the first report of identification and quantification of the five tannin-related marker constituents in the bark and fruit extracts of T. chebula, T. bellirica, T. arjuna and T. catappa.
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Affiliation(s)
- Tushar Dhanani
- Directorate of Medicinal and Aromatic Plants Research (Indian Council of Agricultural Research), Boriavi, Anand, Gujarat 378310, India
| | - Sonal Shah
- Directorate of Medicinal and Aromatic Plants Research (Indian Council of Agricultural Research), Boriavi, Anand, Gujarat 378310, India
| | - Satyanshu Kumar
- Directorate of Medicinal and Aromatic Plants Research (Indian Council of Agricultural Research), Boriavi, Anand, Gujarat 378310, India
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Dianat M, Hamzavi GR, Badavi M, Samarbafzadeh A. Effects of losartan and vanillic Acid co-administration on ischemia-reperfusion-induced oxidative stress in isolated rat heart. IRANIAN RED CRESCENT MEDICAL JOURNAL 2014; 16:e16664. [PMID: 25237570 PMCID: PMC4166089 DOI: 10.5812/ircmj.16664] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2013] [Revised: 01/23/2014] [Accepted: 03/09/2014] [Indexed: 01/01/2023]
Abstract
Background: Experimental studies have demonstrated that angiotensin II (ANG-II)-induced oxidative stress contributes to the pathogenesis of I/R injury. Objectives: This study was aimed to investigate the protective effects of co-administration of losartan, as a selective ANG-II type 1 receptor (AT1R) blocker, and vanillic acid (VA), as an antioxidant, in I/R-induced oxidative stress in isolated rat heart. Materials and Methods: Adult male Wistar rats were randomly divided to sham, control, and five treatment groups (n = 10). Two doses of VA (5 and 10 mg/kg), one dose of losartan (20 mg/kg) alone, and one dose of losartan in combination with either doses of VA were administered orally for 10 days. The hearts were isolated and exposed to 30 minutes ischemia and 60 minutes reperfusion, using Langendorff apparatus. I/R-induced myocardial injury was assessed by estimating the release of lactate dehydrogenase (LDH), creatine phosphokinase (CPK) and myocardial creatine kinase (CK-MB) in coronary effluent at 5, 15, and 60 minutes of reperfusion. The oxidative stress in the hearts was assessed by estimating malondialdehyde (MDA). The effects of treatments on endogenous antioxidant enzymes were assessed by measuring superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT). Results: There was a more significant decrease in the levels of LDH, CPK, CK-MB, and MDA as well as increase in the levels of SOD, CAT and GPx in groups that had received combined treatment in comparison to VA or losartan alone. Conclusions: It may be concluded that combination of losartan with higher dose of VA decreases ischemic markers and lipid peroxidation and augments endogenous antioxidant and hence, protects myocardium against I/R-induced oxidative stress injuries.
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Affiliation(s)
- Mahin Dianat
- Physiology Research Center, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Gholam Reza Hamzavi
- Physiology Research Center, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
- Diabetes Research Center, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
- Corresponding Author: Gholam Reza Hamzavi, Physiology Research Center, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran. Tel: +98-9173144888, Fax: +98-6113337370, E-mail:
| | - Mohammad Badavi
- Physiology Research Center, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Alireza Samarbafzadeh
- Department of Virology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
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Abstract
The bark of the tree Terminalia arjuna (Roxb.) is widely used in Indian medicine (Ayurveda) for various cardiovascular ailments. The bark has been reported to contain several bioactive compounds. Many experimental studies have reported its antioxidant, anti-ischemic, antihypertensive, and antihypertrophic effects, which have relevance to its therapeutic potential in cardiovascular diseases in humans. Several clinical studies have reported its efficacy mostly in patients with ischemic heart disease, hypertension, and heart failure. However, a major shortcoming in all these experimental and clinical studies is the absence of phytochemical standardization of the extracts. In addition, many clinical studies are poor in terms of design and methods used for generating safety data. This review discusses how to address all these issues for a scientific validation of this medicinal plant.
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Affiliation(s)
- Subir K Maulik
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India.
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Zhang L, Ma J, Liu H. Protective effect of ischemic postconditioning against ischemia reperfusion-induced myocardium oxidative injury in IR rats. Molecules 2012; 17:3805-17. [PMID: 22453931 PMCID: PMC6268873 DOI: 10.3390/molecules17043805] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 03/22/2012] [Accepted: 03/23/2012] [Indexed: 01/14/2023] Open
Abstract
Brief episodes of myocardial ischemia-reperfusion (IR) employed during reperfusion after a prolonged ischemic insult may attenuate the total ischemia-reperfusion injury. This phenomenon has been termed ischemic postconditioning. In the present study, we studied the possible effect of ischemic postconditioning on an ischemic reperfusion (IR)-induced myocardium oxidative injury in rat model. Results showed that ischemic postconditioning could improve arrhythmia cordis, reduce myocardium infarction and serum creatin kinase (CK), lactate dehydrogenase (LDH) and aspartate transaminase (AST) activities in IR rats. In addition, ischemic postconditioning could still decrease myocardium malondialdehyde (MDA) level, and increased myocardium Na+-K+-ATPase, Ca2+-Mg2+-ATPase, superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px) and glutathione reductase (GR) activities. It can be concluded that ischemic postconditioning possesses strong protective effects against ischemia reperfusion-induced myocardium oxidative injury in IR rats.
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Affiliation(s)
| | - Jiangwei Ma
- Department of Cardiology, Fengxian Branch of Shanghai 6th People’s Hospital, Shanghai 201400, China
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Kurian GA, Paddikkala J. Role of Mitochondrial Enzymes and Sarcoplasmic ATPase in Cardioprotection Mediated by Aqueous Extract of Desmodium gangeticum (L) DC Root on Ischemic Reperfusion Injury. Indian J Pharm Sci 2011; 72:745-52. [PMID: 21969747 PMCID: PMC3178976 DOI: 10.4103/0250-474x.84585] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Revised: 10/29/2010] [Accepted: 11/20/2010] [Indexed: 01/15/2023] Open
Abstract
The present study investigate the protective effect of aqueous root extract of Desmodium gangeticum in preserving mitochondrial and sarcoplasmic ATPase during ischemia reperfusion injury. The isolated rat hearts in both drug and control group were subjected to warm ischemia (37°), followed by reperfusion with the Langendorff perfusion system. The aqueous root extract of Desmodium gangeticum (L) at a dose of 50 mg/kg body weight was found to be effective in the rat heart for the management of ischemic reperfusion injury. Physiological parameters were significantly (P<0.05) improved in drug treated rat hearts. Creatine phosphokinase in coronary perfusate found to be declined. Moreover, sarcoplasmic ATPase and mitochondrial enzymes were significantly (P<0.05) improved in drug treated rat hearts. In fact, histological analysis of the myocardium also suggested an improved ultra structure in Desmodium gangeticum treated rat heart. These results suggest that Desmodium gangeticum aqueous root extract can preserve the mitochondrial and sarcoplasmic ATPase in the myocardium, resulting in the improvement of cardiac function after ischemia reperfusion injury.
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Affiliation(s)
- G A Kurian
- School of Chemical and Biotechnology, SASTRA University, Thirumalaisamudram, Thanjavur - 613 402, India
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Sharma H, Chandola HM. Prameha in Ayurveda: correlation with obesity, metabolic syndrome, and diabetes mellitus. Part 2--management of Prameha. J Altern Complement Med 2011; 17:589-99. [PMID: 21668351 DOI: 10.1089/acm.2010.0397] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Obesity, metabolic syndrome, and diabetes mellitus are increasing to epidemic proportions globally. Prameha is a syndrome described in the ancient Ayurvedic texts that includes clinical conditions involved in obesity, prediabetes, diabetes mellitus, and metabolic syndrome. MATERIALS AND METHODS Various dietary, lifestyle, and psychologic factors are involved in the etiology of Prameha, particularly in relation to disturbances in fat and carbohydrate metabolism. RESULTS The Ayurvedic management of Prameha emphasizes dietary and lifestyle recommendations and herbal preparations, in accordance with the psychophysiologic constitution of the patient. Ayurveda also addresses the management of psychologic factors that contribute to the development of Prameha. Ayurvedic treatment known as Apatarpana (balanced diet with restricted calories) and Santarpana (highly nutritious, high-calorie diet intended to increase weight) are recommended for patients with type 2 and type 1 diabetes, respectively. Various Ayurvedic herbs and herbomineral formulations are utilized, based on the stage and type of disease as well as the psychophysiologic constitution of the patient. A large body of research has been conducted on these Ayurvedic herbs. CONCLUSIONS Integrating the theory and modalities of Ayurveda in the management of these disorders may prove to be beneficial.
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Affiliation(s)
- Hari Sharma
- Center for Integrative Medicine and Department of Pathology, College of Medicine, The Ohio State University, Columbus, OH 43221, USA.
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Rahmatullah M, Rahman MA, Hossan MS, Taufiq-Ur-Rahman M, Jahan R, Mollik MAH. A Pharmacological and Phytochemical Evaluation of Medicinal Plants Used by the Harbang Clan of the Tripura Tribal Community of Mirsharai Area, Chittagong District, Bangladesh. J Altern Complement Med 2010; 16:769-85. [DOI: 10.1089/acm.2009.0497] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Affiliation(s)
- Mohammed Rahmatullah
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Dhanmondi, Dhaka, Bangladesh
| | - Md. Asifur Rahman
- Pharmacy, University of Development Alternative, Dhanmondi, Dhaka, Bangladesh
| | - Md. Shahadat Hossan
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Dhanmondi, Dhaka, Bangladesh
| | | | - Rownak Jahan
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Dhanmondi, Dhaka, Bangladesh
| | - Md. Ariful Haque Mollik
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Dhanmondi, Dhaka, Bangladesh
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25
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Kumar S, Enjamoori R, Jaiswal A, Ray R, Seth S, Maulik SK. Catecholamine-induced myocardial fibrosis and oxidative stress is attenuated by Terminalia arjuna (Roxb.). J Pharm Pharmacol 2010. [DOI: 10.1211/jpp.61.11.0013] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Objectives
Myocardial fibrosis and oxidative stress accompany a number of cardiac disorders such as hypertrophic cardiomyopathy, hypertensive heart disease and cardiac failure. Stem bark of Terminalia arjuna has been advocated for cardiac ailments. The present study evaluated the effects of T. arjuna bark extract on myocardial fibrosis and oxidative stress induced by chronic beta-adrenoceptor stimulation.
Methods
Aqueous extract of T. arjuna bark was evaluated at 63, 125 and 250 mg/kg given orally for antifibrotic and antioxidant effects in rats given the selective β-adrenoceptor agonist isoprenaline (5 mg/kg s.c.) for 28 days. Captopril (50 mg/kg per day, given orally), an inhibitor of angiotensin-converting enzyme used as a standard cardioprotective drug, was used as a positive control.
Key findings
Isoprenaline caused fibrosis, increased oxidative stress and cardiac hypertrophy (increased heart weight: body weight ratio and cardiomyocyte diameter). The T. arjuna bark extract and captopril significantly prevented the isoprenaline-induced increase in oxidative stress and decline in endogenous antioxidant level. Both also prevented fibrosis but not the increase in heart weight: body weight ratio.
Conclusions
T. arjuna protects against myocardial changes induced by chronic beta-adrenoceptor stimulation.
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Affiliation(s)
- Santosh Kumar
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - Rajesh Enjamoori
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - Amardeep Jaiswal
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - Ruma Ray
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Sandeep Seth
- Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
| | - Subir Kumar Maulik
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
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26
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Bao E, Sultan KR, Nowak B, Hartung J. Expression and distribution of heat shock proteins in the heart of transported pigs. Cell Stress Chaperones 2008; 13:459-66. [PMID: 18465207 PMCID: PMC2673930 DOI: 10.1007/s12192-008-0042-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 03/26/2008] [Accepted: 03/27/2008] [Indexed: 12/26/2022] Open
Abstract
The expression and localization of four heat shock proteins (Hsp70, Hsp86, Hsp90, and Hsp27) were shown in the heart tissue of pigs transported for 6 h. Immunostaining detected the consistent presence of all Hsps in the pig myocardial cells under both transported and normal housing conditions. Immunohistochemical analysis revealed predominance of Hsp70 (significantly highest levels) and Hsp27 in the cytoplasm of myocardial cells. Hsp90 and Hsp86 were expressed both in the cytoplasm and in the nucleus, preferentially in the cytoplasm, of the myocardial cells. In view of their abundant and uniform distributions in the myocardial cells, the expression and distribution patterns of all detected Hsps within the myocardial cells, mostly limited to the cytoplasm, could be related to their chaperone function for cells with important special activities in this study. The identification of all four Hsps in the blood vessel endothelial cells possibly implies that endothelial cells react to ischemia and hypoxia by expressing Hsps. Immunoblot findings suggest that the level of all Hsps decreased in response to stress due to a 6 h journey. The decrease in Hsp levels in the myocardial cells may indicate that the transport stress may have overcharged the repair mechanisms of the cells. Whether this distinct depletion of Hsps contributes to an increased susceptibility to acute heart failure and the sudden death syndrome in transported pigs should be elucidated in future experiments.
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Affiliation(s)
- Endong Bao
- College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, 210095 China
| | - K. R. Sultan
- Institute of Biochemistry and Molecular Biology II: Molecular Cell Biology, University Medical Center Hamburg–Eppendorf, Hamburg, Germany
| | - B. Nowak
- Institute for Food Quality and Food Safety, University of Veterinary Medicine Hanover, Foundation, Bischofsholer Damm 15, 30173 Hanover, Germany
| | - J. Hartung
- Institute for Animal Hygiene, Animal Welfare and Behaviour of Farm Animals, University of Veterinary Medicine Hanover, Foundation, Bünteweg 17p, 30559 Hanover, Germany
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27
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Localization of heat shock proteins and histopathological changes in the kidneys of transported pigs. Livest Sci 2008. [DOI: 10.1016/j.livsci.2008.01.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Saxena M, Yadav S, Bawankule DU, Srivastava SK, Pal A, Mishra R, Gupta MM, Darokar MP, Priyanka, Khanuja SPS. An Immunomodulator from Terminalia Arjuna and Biological Evaluation of its Derivatives. Nat Prod Commun 2008. [DOI: 10.1177/1934578x0800300613] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Detailed chemical investigation of Terminalia arjuna bark resulted in the isolation and identification of an immunomodulatory constituent, arjunic acid (1), which was converted into seven semi-synthetic derivatives (2–8). All the test compounds in 0.1, 1 and 10 μg/mL concentrations exhibited immunomodulatory effects in a dose dependant manner. 2- O-Lauroyl arjunic acid (3) and 2- O-palmitoyl arjunic acid (4) exhibited immunostimulatory response at all the tested concentrations, while arjunic acid (1), 2,3-di- O-acetyl arjunic acid (2), 2,3-di -O-benzoyl arjunic acid (6), and 2- O-p-anisoyl arjunic acid (7) exhibited immunostimulatory responses at lower doses, whereas at higher concentrations they exhibited immunosuppressive activity. Only 2,3-di- O-palmitoyl arjunic acid (5) showed immunosuppressive activity at all the concentrations; this is being reported for the first time.
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Affiliation(s)
- Mohit Saxena
- Analytical Chemistry Division Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow–226015, India
| | - Sachidanand Yadav
- Genetic Resource and Biotechnology Division Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow–226015, India
| | - Dhyaneshwar U. Bawankule
- Genetic Resource and Biotechnology Division Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow–226015, India
| | - Santosh K. Srivastava
- Analytical Chemistry Division Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow–226015, India
| | - Anirban Pal
- Genetic Resource and Biotechnology Division Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow–226015, India
| | - Rupal Mishra
- Analytical Chemistry Division Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow–226015, India
| | - Madan M. Gupta
- Analytical Chemistry Division Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow–226015, India
| | - Mahendra P. Darokar
- Genetic Resource and Biotechnology Division Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow–226015, India
| | - Priyanka
- Analytical Chemistry Division Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow–226015, India
| | - Suman P. S. Khanuja
- Genetic Resource and Biotechnology Division Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow–226015, India
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29
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Sharma H, Chandola HM, Singh G, Basisht G. Utilization of Ayurveda in health care: an approach for prevention, health promotion, and treatment of disease. Part 2--Ayurveda in primary health care. J Altern Complement Med 2008; 13:1135-50. [PMID: 18166127 DOI: 10.1089/acm.2007.7017-b] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Ayurveda is a comprehensive natural health care system that originated in India more than 5000 years ago. It is still widely used in India as a system of primary health care, and interest in it is growing worldwide as well. Ayurveda has unique concepts and methodologies to address health care throughout the course of life, from pregnancy and infant care to geriatric disorders. Common spices are utilized, as well as herbs, herbal mixtures, and special preparations known as Rasayanas. Purification procedures known as Panchakarma remove toxins from the physiology. Research has been conducted worldwide on Ayurveda. There are encouraging results for its effectiveness in treating various ailments, including chronic disorders associated with the aging process. Pilot studies presented in this paper were conducted on depression, anxiety, sleep disorders, hypertension, diabetes mellitus, Parkinson's disease, and Alzheimer's disease. These preliminary studies yielded positive results and provide a basis for conducting larger, more rigorous clinical trials. Conducting research that compares Ayurveda's comprehensive treatment approach, Western allopathic treatment, and an integrated approach combining the Ayurvedic and allopathic treatments would shed light on which treatment approach is the most effective for the benefit of the patient.
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Affiliation(s)
- Hari Sharma
- The Ohio State University Center for Integrative Medicine; College of Medicine, The Ohio State University, Columbus, OH 43210, USA.
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30
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Sinha M, Manna P, Sil PC. A 43kD protein from the herb, Cajanus indicus L., protects against fluoride induced oxidative stress in mice erythrocytes. PATHOPHYSIOLOGY 2007; 14:47-54. [PMID: 17403599 DOI: 10.1016/j.pathophys.2007.01.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2006] [Revised: 12/29/2006] [Accepted: 01/06/2007] [Indexed: 10/23/2022] Open
Abstract
Present study has been carried out to evaluate the protective and curative roles of a 43kD protein isolated from the herb Cajanus indicus L. on sodium fluoride (NaF) induced toxicity in mice erythrocytes. In the preventive study, mice were divided into five groups consisting of six in each for the experiments. Group I animals got water and used as normal controls, animals of groups II and IV were exposed to 600ppm fluoride in water for 7 days. Animals of group III were treated with the protein (2mg/kg body weight) intraperitoneally for 7 days followed by NaF treatment for next 7 days (600ppm). Animals of group V were treated with NaF (600ppm) followed by the protein treatment (2mg/kg body weight) for the same time as mentioned for group III. In the curative study, four groups of six mice were compared. Erythrocytes were isolated, and the antioxidant enzyme superoxide dismutase (SOD) as well as the levels of reduced and oxidized glutathione (GSH and GSSG), total thiols and lipid peroxidation end products were measured in those cells. There was a significant increase in lipid peroxidation along with a decrease in total thiols and SOD activity in the erythrocytes of NaF only and NaF bovine serum albumin treated animals. The 43kD protein treatment in animals either prior or post to fluoride administration normalized the levels of parameters measured and restored the SOD activity in mice erythrocytes. Data suggest that the 43kD protein possesses significant protective and curative activity against NaF induced oxidative stress in erythrocytes.
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Affiliation(s)
- Mahua Sinha
- Department of Chemistry, Bose Institute, 93/1, Acharya Prafulla Chandra Road, Kolkata 700009, India
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31
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Sultana B, Anwar F, Przybylski R. Antioxidant activity of phenolic components present in barks of Azadirachta indica, Terminalia arjuna, Acacia nilotica, and Eugenia jambolana Lam. trees. Food Chem 2007. [DOI: 10.1016/j.foodchem.2007.01.019] [Citation(s) in RCA: 272] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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32
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Geidam Y, Ambali A, Onyeyili P. Phytochemical Screening and Antibacterial Properties of Organic Solvent Fractions of Psidium guajava Aqueous Leaf Extracts. INT J PHARMACOL 2006. [DOI: 10.3923/ijp.2007.68.73] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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Tilak-Jain JA, Devasagayam TPA. Cardioprotective and Other Beneficial Effects of Some Indian Medicinal Plants. J Clin Biochem Nutr 2006. [DOI: 10.3164/jcbn.38.9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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