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EVALUATION OF CARDIOPROTECTIVE ACTIVITY OF ETHANOLIC EXTARACT OF PSEUDARTHRIA VISCIDA(L.) WIGHT & ARNOTT ROOTS MASTER OF PHARMACY DISSERTATION PROTOCOL SUBMITTED TO THE RAJIV GANDHI UNIVERSITY OF HEALTH SCIENCES KARNATAKA, BANGALORE BY KORIA HARDIK MUKESHKUMAR Under The Guidance of Mr. MOSES SAMUEL RAJAN, M.PHARM DEPARTMENT OF PHARMACOLOGY, SRINIVAS COLLEGE OF PHARMACY, MANGALORE – 574143 2011 – 2013 RAJIV GANDHI UNIVERSITY OF HEALTH SCIENCES ANNEXURE-II BANGALORE, KARNATAKA. PROFORMA FOR REGISTRATION OF SUBJECT FOR DISSERTATION 1.0 NAME AND ADDRESS OF THE CANDIDATE 2.0 NAME OF THE INSTITUTION 3.0 COURSE OF STUDY AND SUBJECT 4.0 DATE OF ADMISSION TO KORIA HARDIK MUKESHKUMAR ‘KORIA NIVAS’, AMBICANAGAR, RAMNAGAR, SABARMATI, AHMEDABAD-380005 GUJARAT SRINIVAS COLLEGE OF PHARMACY VALACHIL, MANGALORE.-574143 MASTER OF PHARMACY IN PHARMACOLOGY 14/05/2011 COURSE EVALUATION OF CARDIOPROTECTIVE 5.0 TITLE OF THE TOPIC ACTIVITY OF ETHANOLIC EXTRACT OF PSEUDARTHRIA VISCIDA (L.) WIGHT AND ARNOTT ROOTS 6.0 BRIEF RESUME OF THE INTENDED WORK : 6.1 NEED FOR THE STUDY: According to the findings of the National Vital Statistics Report (2008) and the Morbidity and Mortality Weekly Report (2007) of the Centers for Disease Control and Prevention (CDC), cardiovascular diseases including myocardial infarction (MI) and the resultant complication in cardiac function represent the leading cause of morbidity and mortality in developed countries1,2. Moreover, with advanced life style in developing countries, such as India, particularly in metropolitan cities, MI is making increasingly important contribution to mortality statistics of such countries3. Although clinical care is improved, public awareness is raised and health innovations are widely used, myocardial infarction remains the leading cause of death worldwide4. It is the acute condition of myocardial necrosis that occurs as a result of imbalance between coronary blood supply and myocardial demand. Experimental and clinical studies have shown that there is increased generation of reactive oxygen species such as superoxide anion (.O-2) and hydroxyl radicals (.OH-) in heart failure, which are involved in the formation of lipid peroxides, damage of cell membrane, and destruction of antioxidative defense system 5,6. Cell injury occurring after ischemia-reperfusion (I/R) in the heart is attributed to necrosis caused by calcium overload, acidosis, and oxidative stress. After I/R, myocardial cell die by necrosis and/or apoptosis. Free radicals and antioxidants play an important role in cellular damage that can cause atherosclerosis and myocardial infarction. Both neutrophils and free radicals, such as superoxide anions, hydroxyl radicals and hydrogen peroxide, can cause oxidative damage to cell lipids, proteins, and nucleic acids. A consensus still exists that reactive oxygen species play an important role in the pathogenesis of cardiac reperfusion injury.7 Because of high incidence of morbidity, various drugs and regimes have been advocated for the control of CVS diseases. Many new drugs have been introduced which may demonstrate better efficacy but possess side effects.8 Recently attention has been focused towards herbal and mineral preparations which are traditionally used as potential therapeutic agents in the prevention and management of cardiovascular diseases such as Terminalia arjuna (arjun), Trigonella foenum-graecum (fenugreek), Curcuma longa (turmeric), Garcinia indica (kokum) and Vitis vinifera (grapes).9 CRITERIA FOR SELECTION OF THE PLANT: Roots of Pseudarthria viscida was proved for its anti diabetic, antioxidant, antidiarrhoeal activity and neuroprotective activity. Pseudarthria viscida consists of phytochemical constituents like alkaloids, glycosides, flavonoids, tannins, phenolic compounds and saponins. Alkaloids, glycosides, saponins and flavonoids were reported to show cardioprotective activity.10Also in Ayurveda Pseudarthria viscida was found in many formulations used for cardio protective action.11In present study, cardioprotective effect of Pseudarthria viscida will be assessed by using different experimental models in animals. 6.2 REVIEW OF LITERATURE: 6.2.1 Name of the plant : Pseudarthria viscida Pseudarthria viscida (L.) Wight &Arnott Family : Fabaceae Sanskrit synonym : kalasi, prsniparni, salaparni, saliparni, sanaparni Other name: Kannada (2) : antubelegida, antuparni Malayalam (2) : muvila, muvvila Tamil (8) : kotiottai, muvilai, muvilaippunnai, muvilaippunnaimaram, neermali, nirmalli, pitani Telugu (6) : muyak, muyakuponna, muyyakuponna, muyyakuponna, nayakuponna, nayakuponna Distribution: Globally the species is distributed in the Indo-Malaysian region and Sri Lanka. In India it is recorded in the states of Gujarat, Orissa, Karnataka, Tamil Nadu and Kerala Plant Description: A semi erect, pubescent, perennial shrub grows up to 50 cm to 1 meter in height. Branches are covered with whitish hairs. Leaves are hairy, compound; trifoliate, terminal leaflet rhomboid ovate, lateral ones are obliquely ovate or oblong. Flowers are purplish or pink, small numerous, found on terminal and axillary spikes. Fruits pods, flattened and covered with hairs, seeds 4-6. Chemical constituents : alkaloids, glycosides, carbohydrates, proteins, steroids, flavonoids, terpenoids, tannins & phenolic compounds, and fixed oils Use :Plant is used in tridoshas, cough, asthma, fever, dysentery, cardiac ailments, rheumatoid arthritis and aid in fast healing of fractured bone. Useful part : Roots 11 6.3 OBJECTIVES OF THE STUDY: 1) Extraction of roots of Pseudarthria viscida 2) Preliminary phytochemical screening. 3) To study the cardioprotective activity of extracts using following animal models a) Isoproterenol (ISO) induced myocardial necrosis in rats b) Ischemia-reperfusion induced (IRI) myocardial damage in isolated rat heart. 4) Biochemical Estimation: Blood will be collected from the animals and serum will be evaluated for (a) LDH ( Lactate dehydrogenase ) (b) CK-MB ( Creatine phosphokinase-MB ) (c) Antioxidants ( Superoxide dismutase and Catalase ) 5) Histopathological Examination: In all above models heart will be isolated and examined for histopathological investigations. 6) In Isoproterenol (ISO) induced myocardial infarction model, ECG changes will also be examined. 7.0 MATERIALS AND METHODS: 7.1 SOURCE OF DATA: Experiment will be performed as described in the standard bibliography, literatures and text books. The reputed journals and publications are obtained from college library and through web search 7.2 COLLECTION OF MATERIAL: 7.2.1 COLLECTION OF PLANT MATERIAL: The Pseudarthria viscida will be collected from local region of Mangalore district, and authenticated by a Taxonomist. 7.2.2 DRUGS AND CHEMICALS: Isoproterenol, Heparine, Ketamine hydrochloride, Pentobarbitone, Xylazine, Propranolol, LDH kits, CK-MB kits will be procured from Hi-media suppliers. All other chemicals are of pure analytical grade will be obtained from local suppliers. 7.2.3ANIMALS Wistar rats (150-200 g)of either sex will be procured from Indian Institute of Sciences. They will be maintained under standard conditions (temperature 22 ± 2oC, relative humidity 50±5% and 12 h light/dark cycle).The animals will be housed in sanitized polypropylene cages containing sterile paddy husk as bedding. They will have free access to standard pellet diet and water ad libitum. The Institutional Animal Ethics Committee approved the experimental protocol. All the animals received human care according to the criteria outlined in the “Guide for the Care and Use of Laboratory Animals” prepared by the “National Academy of Sciences” and published by the “National Institute of Health”. All the procedures will be performed in accordance with Institutional Animal ethics committee constituted as per the direction of the committee for the purpose of control and supervision of experiments on animals (CPCSEA), under ministry of animal welfare division, Government of India, New Delhi, India. 7.3 EXPERIMENTAL METHODS : 7.3.1.ISOPROTERENOL (ISO) INDUCED MYOCARDIAL NECROSIS IN RATS12. The albino rats (150-200 g) of either sex will be randomly divided into 5 groups of 6 each and assigned as below: o Group-I- normal control (Normal saline) o Group-II - toxic control (Isoproterenol: 150mg/Kg) o Group-III–Reference standard (Propranolol: 10mg/Kg) o Group-IV- Pseudarthria viscida roots extract (low dose: 200 mg/Kg) o Group-V- Pseudarthria viscida roots extract(high dose: 400 mg/Kg) Propranolol will be administered to group III animals one week before administration of Isoproterenol. All the animals in group IV & V will be treated once daily post orally for 4 weeks. On 29th and 30th day after the treatment, myocardial infarction will be induced in group II – group V animals by sub cutaneous injection of Isoproterenol. EVALUATION: Symptoms and mortality in each group will be recorded and compared with animals given with Isoproterenol alone. Forty-eight hours after the first Isoproterenol administration, the rats will be sacrificed and autopsied. The hearts will be removed and weighed and the frontal sections will be embedded for histopathological examination. BIOCHEMICAL ESTIMATION: The collected blood as well as heart homogenate will be analyzed for endogenous biological markers such as Lactate dehydrogenase (LDH), Creatine phosphokinaseMB (CK-MB) and antioxidant enzymes like Superoxide dismutase and Catalase. 7.3.2: ISCHEMIA-REPERFUSION INDUCED (IRI) MYOCARDIAL DYSFUNCTION13 The albino rats (150-200 g) of either sex will be randomly divided into 5 groups of 3 each and assigned as below: o Group-I-Normal control (saline) o Group-II – Ischemia induced control o Group-III – Ischemia induced + Reference standard (Propranolol: 10mg/Kg) o Group-IV - Ischemia induced + Pseudarthria viscid roots extract (low dose: 200mg/Kg). o Group-V- Ischemia induced + Pseudarthria viscid roots extract (high dose: 400 mg/Kg). Propranolol will be administered to group III animals one week before producing ischemia. All the animals in group IV & V will be treated once daily post orally for 4 weeks. The heart will be excised from deeply anesthetized rats (35 mg/kg sodium pentobarbitone, i.p) and perfused with Kreb-Henseleit solution gassed with carbogen at 37o C and a constant flow rate of 5ml/min by one-way circulation using modified Langendorff setup. Measurement of contractile force will be done with displacement transducer and recorded on Student physiograph. After a short period of equilibrium (15 minutes), records will be taken for a control period of 15 minutes, followed by 15 minutes ischemia and then a washout period with Kreb-Henseleit solution. Recovery in terms of inotropic and chronotropic effect will be studied and the extent of cardioprotection due to Pseudarthria viscida will be evaluated by measuring the developed tension. BIOCHEMICAL ESTIMATION: The collected blood as well as heart homogenate will be analysed for endogenous biological markers such as Lactate dehydrogenase (LDH), Creatine phosphokinase (CK) and antioxidant enzymes like Superoxide dismutase and Catalase. 7.3.3 ECG STUDIES14. The albino rats (150-200 g) of either sex will be randomly divided into 5 groups of 3 each and assigned as below: o Group-I- normal control (saline) o Group-II - toxic control (Isoproterenol: 150mg/Kg) o Group-III – Reference standard ( Propranolol : 10mg/Kg) o Group-IV – Pseudarthria viscida roots extract (low dose: 200 mg/Kg ). o Group-V- Pseudarthria viscida roots extract ( high dose: 400 mg/Kg). Propranolol will be administered to group III animals one week before administration of Isoproterenol. All the animals in group IV & V will be treated once daily post orally for 4 weeks. On 29th and 30th day after the treatment, myocardial infarction will be induced in group II – group V animals by sub cutaneous injection of Isoproterenol. After anesthetizing the rat with a combination of Ketamine hydrochloride (75mg/kg, i.p) and Xylazine (8.0mg/kg, i.p), electrical leads will be attached to the dermal layer of all the limbs and recording will be done with the help of computerized ambulatory ECG system. 7.4 STATISTICAL ANALYSIS: The data will be expressed as Mean value + SEM and will be analyzed by the oneway ANOVA followed by the Dennett’s test. 7.5DOES THE STUDY REQUIRE ANY INVESTIGATIONS OR INTERVENTIONS TO BE CONDUCTED ON PATIENTS OR OTHER HUMANS OR ANIMALS? IF SO PLEASE DESCRIBE BRIEFLY. Yes. Study requires investigation on Wistar albino rats. 7.6HAS ETHICAL CLEARANCE BEEN OBTAINED FROM YOUR INSTITUTION? Yes. Ethical clearance has been obtained. (Copy enclosed) 8.0 LIST OF REFERENCES: 1. Kung HC, Hoyert DL, Xu J, Murphy SL. Deaths: final data for 2005.Natl Vital Stat Rep 2008;56:1-120. 2. Burrows NR, Parekh S, Li Y, Geiss LS. Prevalence of self reported cardiovascular disease among persons aged _35 years with diabetes – United States, 1997–2005. MMWR. 2007;56:1129–1131. Available at: http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5643a2.htm Accessed 01 December 2010 3:30 pm. 3. Levy RI, Feinleib M. Heart disease. In: Text book of Cardiovascular Medicine. W.B. Saunders Company, Philadelphia 1984;2:1205-34. 4. Aronow WS. Epidemiology, pathophysiology, prognosis and treatment of systolic and diastolic heart failure. Cardiol 2006;14:108-24. 5. Biase D, Pignatelli P, Lenti L, Tocci G, Piccioni F. Enhanced TNF alpha and oxidative stress in patients with heart failure: effect of TNF alpha on platelet O-2 production. Thromb Haemost 2003;90:317-25. 6. Rajadurai M, Prince SM. Preventive effect of naringin on Isoproterenolinduced cardiotoxicity in Wistar rats: an in vivo and in vitro study. Toxicology 2007;232:216-25. 7. AkcalıY, OzturkF,Ceyran H, Narin F, Narin N, Akgun H, Ceyran AB. The Effect of High Dose Melatonin on Cardiac Ischemia reperfusion Injury. Yonsei Med J 2008;49(5). 8. Sakat SS, Wankhede SS, Juvekar AR, Mali VR, Bodhankar SL. Antihypertensive effect of aqueous extract of Elaeocarpus ganitrus Roxb. Seeds in renal artery occluded hypertensive rats. International Journal of Pharm Tech Research, 2009 sep;1:779-82 9. Jai Ashish Tilak-Jain and Thomas Paul Asir Devasagayam: Cardioprotective and Other Beneficial Effects of Some Indian Medicinal Plants . J. Clin. Biochem. Nutr., 38, 9-18, 2006 10. Arya and Gupta, IJPSR, 2011; Vol. 2(5): 1156-1167 11. Kirtikar & Basu, ”Indian medicinal plants”, second edition, volume 1, 2004, page no.748 12. Asdaq SMB, Inamdar MN, Asad M, Nanjundan PK. Interaction of propranolol with garlic in Isoproterenol induced myocardial infarction in rat. J PharmacolToxicol 2008;3 (6):414-24. 13. Asdaq SMB, Inamdar MN. Pharmacodynamic interaction of garlic withcaptopril in Ischemia-reperfusion induced myocardial damage in rats. Phamacology online 2008;2:875-88. 14. Singh PN, Athar MS. Simplified calculation of mean QRS vector(mean electrical axis of heart) of electrocardiogram. Indian J Physiological Pharmacological 2003;47:212-6. 9. SIGNATURE OF THE CANDIDATE 10. REMARKS OF THE GUIDE 11. NAME AND DESIGNATION 11.1 GUIDE Recommended and Forwarded MR. MOSES SAMUEL RAJAN Associate Professor Department of Pharmacology Srinivas College of Pharmacy Mangalore- 574 143 11.2 SIGNATURE 11.3 CO-GUIDE (IF ANY) Not Applicable 11.4 SIGNATURE 11.5 HEAD OF THE DEPARTMENT MR. MOSES SAMUEL RAJAN Asso. Professor Department of Pharmacology Srinivas College of Pharmacy Mangalore- 574 143 11.6 SIGNATURE 12 12.1 REMARKS OF THE PRINCIPAL 12.2 NAME & SIGNATURE OF PRINCIPAL DR. A. R. SHABARAYA PRINCIPAL, SRINIVAS COLLAGE OF PHARMACY MANGALORE- 574 143