Investigating the effect of Eclipta prostrata hydroalcoholic extract on motor activity, avoidance memory and oxidative stress in an animal model of Parkinson's disease in adult male rats
Subject Areas :
shahrbano alamirostami
1
,
Maryam Rafieirad
2
1 - Department of Biology, Islamic Azad University, Gorgan Branch, Gorgan, Iran
2 - Department of biology, Islamic Azad university, Izeh branch, Iran
Received: 2023-04-04
Accepted : 2023-06-20
Published : 2023-07-23
Keywords:
Oxidative stress,
Parkinson',
Avoidance Memory,
motor activity,
Eclipta prostrata extract,
s disease,
Abstract :
Background and Aims: Parkinson's disease is associated with motor and cognitive disorders, so we investigated the administration of Eclipta prostrata hydroalcoholic extract on learning, memory, motor activity and oxidative stress in Parkinson's model.Materials and methods: 50 adult Wistar rats were divided into five groups: control group, parkinsonian group and three groups treated with eucalyptus perstrata extract in three different concentrations of 50, 100 and 200 mg/kg. Induction of Parkinson's model was done by injecting 6-hydroxydopamine (6-OHDA). One day after the last gavage, motor tests were done. The shuttle box test was used to evaluate learning and avoidance memory. Oxidative stress was evaluated by malondialdehyde, glutathione peroxidase and thiol content.Results: 7 days after the lesion in the MFB, after the administration of apomorphine, the rats turned 360 degrees in the right direction at a rate of more than 10 revolutions per minute. In the movement tests of the parkinsonian group, maintaining balance in rotarod (p<0.001), catalepsy (p<0.001), muscle stiffness (p<0.001), stride length (p<0.001) and avoidance memory (p<0.001) showed a significant difference to the control group. Also, Eclipta prostrata extract significantly improved all kinds of movement disorders caused by Parkinson's disease, and in doses of 50, 100, and 200, it improved memory in Parkinsonian rats (p<0.001). Also, the extract significantly increased the amount of thiol (p<0.001). and glutathione peroxidase (p<0.001) and decreased MDA in hippocampus and striatum tissue (p<0.001).Conclusion: In general, we showed that the hydroalcoholic extract of Eclipta prostrata administered in the animal model of Parkinson's has a favorable effect on memory, learning, motor activity and oxidative stress of the brain.
References:
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Aarsland D, Bronnick K, Fladby T. Mild cognitive impairment in Parkinson's disease. Curr Neurol Neuros Rep.2011;11(4): 371-8.
Lau YS, Patki G, Das-Panja K, Le WD, Ahmad SO. Neuroprotective effects and mechanisms of exercise in a chronic mouse model of Parkinson's disease with moderate neurodegeneration. Eur j neuros.2011;33(7): 1264-74.
Goes A, Souza L, Del Fabbro L, De Gomes M, Boeira S, Jesse C. Neuroprotective effects of swimming training in a mouse model of Parkinson’s disease induced by
6-hydroxydopamine. Neuroscience. 2014; 256: 61-71.
5. Stelmashook EV, Isaev NK, Genrikhs EE, Amelkina GA, Khaspekov LG, Skrebitsky VG, et al. Role of zinc and copper ions in the pathogenetic mechanisms of Alzheimer's and Parkinson's diseases. Biochemistry (Mosc) 2014; 79(5): 391-6
Kumari CS, Govindasamy S, Sukumar E. Lipid lowering activity of Eclipta prostrata in experimental hyperlipidemia. J Ethnopharmacol 2006; 105: 332–5.
Jaiswal N, Bhatia V, Srivastava SP, Srivastava AK, Tamrakar AK. Antidiabetic effect of Eclipta alba associated with the inhibition of alpha-glucosi- dase and aldose reductase. Nat Prod Res.2012; 26: 2363–7.
Prabu K, Kanchana N, Sadiq AM. Hepatopro- tective effect of Eclipta alba on paracetamol induced liver toxicity in rats. J Microbiol Biotechnol Res.2011; 1(3):75–9.
Singh A, Duggal S, Suttee A, Singh J, Katekhaye S. Eclipta alba Linn. Ancient remedy with therapeutic potential. Int J Phytopharm.2010; 1: 57–63.
Jadhav VM, Thorat RM, Kadam VJ, Salaskar KP.Chemical composition, pharmacological activities of Eclipta alba.J Pharm Res.2009; 2: 1129–31.
Pukumpuang W, Chansakaow S, Tragoolpua Y ScienceAsia 42 (2016) 265 (2014) Antioxidant activity, phenolic compound con- tent and phytochemical constituents of Eclipta prostrata (Linn.) .Chiang Mai J Sci 41, 568–76.
Kim DI, Lee SH, Hong JH, Lillehoj HS, Park HJ, Rhie SG, Lee GS (2010) The butanol fraction of Eclipta prostrata (Linn) increases the formation of brain acetylcholine and decreases oxidative stress in the brain and serum of cesarean-derived rats. Nutr Res 30, 579–84.
Mansoorali KP, Prakash T, Kotresha D, Prabhu K, Rama Rao N .Cerebroprotective effect of Eclipta alba against global model of cerebral ischemia induced oxidative stress in rats. Phytomedicine. 2012 Sep 15;19(12):1108-16
Sharifi F, Rafieirad M, Sazegar H. Effects of Ferulago angulata Extract Against Oxidative Stress Induced by 6-hydroxydopamine in Rats. J Med Plan 2015;1(53):34-44.
Goudarzi S, Rafieirad M. Evaluating the effect of α-pinene on motor activity, avoidance memory and lipid peroxidation in animal model of Parkinson disease in adult male rats. Res J Pharm2017;4(2):53-63.
Mahmoodi R, Zanganehnejad Z, Setorki M. Effect of hydroalcoholic extracts of thyme on movement disorders, depression and pain caused by the injection of 6-ydroxydopamine in rat model of parkinson's. J Babol Univ Med Sic 2017;19(1):48-54. [Full Text in Persian]
17. Rabiee Z, Davoodizade Z, Bijad E, Rafieian-kopaei M. Evaluation of the effects of grape seed oil on the anxiety level and motor coordination of male wistar rats. J Babol Univ Med Sci 2016;18(6):52-8.
Sarkaki A, Zare FN, Farbood Y, Pilevarian AA. Impaired movements in 6-OHDA induced Parkinson’s rat model improves by pomegranate seed hydroalcoholic extract. Health Med J 2013;7(2):348-58. Link
Mahmoudi R, Rafieirad M, Goudarzi S. Effect of Hydroalcoholic Extract of Ferulago angulata (Schlecht) Boiss on Motor and Memory Disorders in Animal Model of Parkinson Disease. Qom Univ Med Sci J. 2018; 12 (8) :36-47.
Doulah A, Rafiei Rad M, Zangeneh Nezhad Z. Evaluation of hydroalcoholic extract of Thyme on malondialdehyde, thiol, and glutathione peroxidase concentration in the Parkinson's model induced by 6-hydroxydopamine in adult male rats. J. Med. Plants. 2020; 19 (74) :325-334.
21.Connolly BS, Lang AE. Pharmacological treatment of Parkinson disease: a review. Jama. 2014; 311(16): 1670-83.
Chahal HS, Sharma S, Effect of Eclipta alba and Ocimum sanctum on haloperidol induced parkinsonism, Journal of Drug Delivery and Therapeutics. 2018; 8(5):288-293
Martinez J, Moreno JJ. Effect of resveratrol, a natural polyphenol compound, on reactive prostaglandin production. Biochem Pharmacol 2000;59(7):865-70.
Mocchegiani E, Carlos BF, Fiorella M. Brain, aging: Role of zinc ion availability. J Prog Nurobiol 2005;75(6):367-90.
Onofrj M, Thomas A. Acute akinesia in Parkinson disease. Neurology 2005;64(7):1162-9.
Aarsland D, Bronnick K, Fladby T. Mild cognitive impairment in Parkinson's disease. Curr Neurol Neurosci Rep 2011;11(4):371-8.
Tarawneh R, Galvin JE. Potential future neuruprotective therapies for neurodegenerative disorders and stroke. Clin Geriatr Med 2010;26(1):125-47.
Ebrahimi A, Hajizadeh Moghaddam A. The effect of hydroalcoholic extract of olive leaf on learning and memorydeficit induced by dopaminergic neurons impairment in male rat. Daneshvar 2015;22(117):1-8.
Jafari F, Doulah A, Rafieirad M. Effect of oleuropein and swimming practice on motor disorder induced by 6-hydroxydopamine toxin in mature male rats. JBRMS 2020; 7 (1) :50-60.
Alipour-NosraniE, Ghazanfari M, Eslahi M, Taghizadeh M. The effect of Zizyphus jujube aqueous extract on learning, memory, locomotor activity and Brain malondialdehyde level in rats with Parkinson's disease. Feyz 2022; 26 (6).
31. Xia X, Yu R, Wang X, Wei M, Li Y, Wang A, Ma Y, Zhang J, Ji Z, Li Y, Wang Q. Role of Eclipta prostrata extract in improving spatial learning and memory deficits in D-galactose-induced aging in rats J Tradit Chin Med. 2019 Oct;39(5):649-657.
Jung WY, Kim H, Park HJ, Jeon SJ, Park HJ, Choi HJ, Kim NJ, Jang DS, Kim DH, Ryu JH. The ethanolic extract of the Eclipta prostrata L. ameliorates the cognitive impairment in mice induced by scopolamine. J Ethnopharmacol. 2016 Aug 22;190:165-73.
Jesberger JA and Richardson JS. Oxygen free radicals and brain dysfunction. Int. J. Neurosci.1991; 57(1-2): 1-17.
Brück A, Kurki T, Kaasinen V, Vahlberg T and Rinne JO. Hippocampal and prefrontal atrophy in patients with early non-demented Parkinson’s disease is related to cognitive impairment. JNNP.2004; 75 (10): 1467-9.
Tanner JJ, McFarland NR, and Price CC. Striatal and Hippocampal Atrophy in Idiopathic Parkinson’s Disease Patients without Dementia: A Morphometric Analysis. Frontiers in Neurology 2017; 8(139): 1-10.
Ebrahimi A, Hajizadeh moghaddam A. The Effect of Olive Leaf Methanolic Extract on Hippocampal Antioxidant Biomarkers in an Animal Model of Parkinson’s Disease. JBCP. 2017; 5(2): 9-14.
Sarkaki A, Farbood Y, Dolatshahi M, Mansouri SM and Khodadadi A. Neuroprotective Effects of Ellagic Acid in a Rat Model of Parkinson's Disease. Acta Med. Iran. 2016; 54(8): 494-502.
Mansouri MT, Farbood Y, Sameri MJ, Sarkaki A, Naghizadeh B and Rafeirad M. Neuroprotective effects of oral gallic acid against oxidative stress induced by 6-hydroxydopamine in rats. Food Chem 2013; 138 (2-3): 1028-33.
Rafieirad M, Eydipour Z. Effect of ellagic acid on thiol levels in different brain tissue in an animal model of Parkinson's disease. JHD. 2014; 4(4): 193-200.
Rafieirad M and Valipour-Chahardah-Charic S. Evaluation of the simultaneous effect of zinc oxide nanoparticles and vitamin C on oxidative stress in rat cerebellum. Feyz. 2018; 22(3): 274-82.
Singh N, Pillay V and Choonara YE. Advances in the treatment of Parkinson's disease. Prog. in Neurobiol. 2007; 81(1): 29-44.
Esmaeili AH, Khavari-Nejad RA, Hajizadeh Moghaddam A, Chaichi MJ and Ebrahimzadeh MA. Effects of Eriobotrya japonica (Lindl.) flower extracts on mercuric chloride-induced hepatotoxicity in rats. Chin. Sci. Bull. 2012; 57(30): 3891-7.
Choi DY and Choi H. Natural products from marine organisms with neuroprotective activity in the experimental models of Alzheimer's disease, Parkinson's disease and ischemic brain stroke: their molecular targets and action mechanisms. Arch. Pharm. Res. 2015; 38(2): 70–139.
Dani C, Pasquali MAB, Oliveira MR, Umezu FM, Salvador M, Henriques JAP and Moreira JCF. Protective Effects of Purple Grape Juice on Carbon Tetrachloride-Induced Oxidative Stress in Brains of Adult Wistar Rats. J. Medicinal Food. 2008; 11(1): 55-61.
Liu S, Zeng TH, Hofmann M, Burcombe E, Wei J, Jiang R, Kong J and Chen Y. Antibacterial activity of graphite, graphite oxide, graphene oxide, and reduced graphene oxide: membrane and oxidative stress. ACS Nano. 2011; 5(9): 6971-80.
Martin HL and Teismann P. Glutathione--a review on its role and significance in Parkinson's disease. FASEB Journal 2009; 23(10): 3263-72.
Pupillo E, Cricelli C, Mazzoleni F, Cricelli I, Pasqua A, Pecchioli S, Lapi F and Beghi E. Epidemiology of Parkinson's Disease: A Population-Based Study in Primary Care in Italy. Neuroepidemiol. 2016; 47(1): 38-45.
Jung YD, Lee H, Lee BR, Yim YK. The effect of anti-cancer and immune response improvement of ELP (Eclipta prostrata) herbal-acupuncture into chok-samni (St36). J. Korean Acupunct. Moxib. Soc. 2003; 20:141–153.
Kim DI, Lee SH, Hong JH, Lillehoj HS, Park HJ, Rhie SG, Lee GS. The butanol fraction of Eclipta prostrata (Linn) increases the formation of brain acetylcholine and decreases oxidative stress in the brain and serum of cesarean-derived rats. Nutr Res.2010; 30:579–84.
50.JaisinY.RatanachamnongP.PrachayasittikulS.WatanapokasinR.Kuanpradit C.Protective effects of ethyl acetate extract of Eclipta prostrata against 6-hydroxydopamine-induced neurotoxicity in SH-SY5Y cells. ScienceAsia2016; 42 :259–265.
Chan CF, WY Huang, HY Guo, and BR Wang. Potent Antioxidative and UVB Protective Effect of Water Extract of Eclipta prostrata L. Hindawi Publishing Corporation. Scientific World Journal. 2014.
52. Lee SH, Jung IJ, Jang The antioxidative effect of Eclipta prostrata L. extract on cultured nih3t3 fibroblasts injured by manganese-induced cytotoxicity. Biomedical Science Letters. 2018; 24(4): 357-364.
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Donaldson IM. James Parkinson's essay on the shaking palsy. J R Coll Physicians Edinb 2015;45(1): 84-6.
Aarsland D, Bronnick K, Fladby T. Mild cognitive impairment in Parkinson's disease. Curr Neurol Neuros Rep.2011;11(4): 371-8.
Lau YS, Patki G, Das-Panja K, Le WD, Ahmad SO. Neuroprotective effects and mechanisms of exercise in a chronic mouse model of Parkinson's disease with moderate neurodegeneration. Eur j neuros.2011;33(7): 1264-74.
Goes A, Souza L, Del Fabbro L, De Gomes M, Boeira S, Jesse C. Neuroprotective effects of swimming training in a mouse model of Parkinson’s disease induced by
6-hydroxydopamine. Neuroscience. 2014; 256: 61-71.
5. Stelmashook EV, Isaev NK, Genrikhs EE, Amelkina GA, Khaspekov LG, Skrebitsky VG, et al. Role of zinc and copper ions in the pathogenetic mechanisms of Alzheimer's and Parkinson's diseases. Biochemistry (Mosc) 2014; 79(5): 391-6
Kumari CS, Govindasamy S, Sukumar E. Lipid lowering activity of Eclipta prostrata in experimental hyperlipidemia. J Ethnopharmacol 2006; 105: 332–5.
Jaiswal N, Bhatia V, Srivastava SP, Srivastava AK, Tamrakar AK. Antidiabetic effect of Eclipta alba associated with the inhibition of alpha-glucosi- dase and aldose reductase. Nat Prod Res.2012; 26: 2363–7.
Prabu K, Kanchana N, Sadiq AM. Hepatopro- tective effect of Eclipta alba on paracetamol induced liver toxicity in rats. J Microbiol Biotechnol Res.2011; 1(3):75–9.
Singh A, Duggal S, Suttee A, Singh J, Katekhaye S. Eclipta alba Linn. Ancient remedy with therapeutic potential. Int J Phytopharm.2010; 1: 57–63.
Jadhav VM, Thorat RM, Kadam VJ, Salaskar KP.Chemical composition, pharmacological activities of Eclipta alba.J Pharm Res.2009; 2: 1129–31.
Pukumpuang W, Chansakaow S, Tragoolpua Y ScienceAsia 42 (2016) 265 (2014) Antioxidant activity, phenolic compound con- tent and phytochemical constituents of Eclipta prostrata (Linn.) .Chiang Mai J Sci 41, 568–76.
Kim DI, Lee SH, Hong JH, Lillehoj HS, Park HJ, Rhie SG, Lee GS (2010) The butanol fraction of Eclipta prostrata (Linn) increases the formation of brain acetylcholine and decreases oxidative stress in the brain and serum of cesarean-derived rats. Nutr Res 30, 579–84.
Mansoorali KP, Prakash T, Kotresha D, Prabhu K, Rama Rao N .Cerebroprotective effect of Eclipta alba against global model of cerebral ischemia induced oxidative stress in rats. Phytomedicine. 2012 Sep 15;19(12):1108-16
Sharifi F, Rafieirad M, Sazegar H. Effects of Ferulago angulata Extract Against Oxidative Stress Induced by 6-hydroxydopamine in Rats. J Med Plan 2015;1(53):34-44.
Goudarzi S, Rafieirad M. Evaluating the effect of α-pinene on motor activity, avoidance memory and lipid peroxidation in animal model of Parkinson disease in adult male rats. Res J Pharm2017;4(2):53-63.
Mahmoodi R, Zanganehnejad Z, Setorki M. Effect of hydroalcoholic extracts of thyme on movement disorders, depression and pain caused by the injection of 6-ydroxydopamine in rat model of parkinson's. J Babol Univ Med Sic 2017;19(1):48-54. [Full Text in Persian]
17. Rabiee Z, Davoodizade Z, Bijad E, Rafieian-kopaei M. Evaluation of the effects of grape seed oil on the anxiety level and motor coordination of male wistar rats. J Babol Univ Med Sci 2016;18(6):52-8.
Sarkaki A, Zare FN, Farbood Y, Pilevarian AA. Impaired movements in 6-OHDA induced Parkinson’s rat model improves by pomegranate seed hydroalcoholic extract. Health Med J 2013;7(2):348-58. Link
Mahmoudi R, Rafieirad M, Goudarzi S. Effect of Hydroalcoholic Extract of Ferulago angulata (Schlecht) Boiss on Motor and Memory Disorders in Animal Model of Parkinson Disease. Qom Univ Med Sci J. 2018; 12 (8) :36-47.
Doulah A, Rafiei Rad M, Zangeneh Nezhad Z. Evaluation of hydroalcoholic extract of Thyme on malondialdehyde, thiol, and glutathione peroxidase concentration in the Parkinson's model induced by 6-hydroxydopamine in adult male rats. J. Med. Plants. 2020; 19 (74) :325-334.
21.Connolly BS, Lang AE. Pharmacological treatment of Parkinson disease: a review. Jama. 2014; 311(16): 1670-83.
Chahal HS, Sharma S, Effect of Eclipta alba and Ocimum sanctum on haloperidol induced parkinsonism, Journal of Drug Delivery and Therapeutics. 2018; 8(5):288-293
Martinez J, Moreno JJ. Effect of resveratrol, a natural polyphenol compound, on reactive prostaglandin production. Biochem Pharmacol 2000;59(7):865-70.
Mocchegiani E, Carlos BF, Fiorella M. Brain, aging: Role of zinc ion availability. J Prog Nurobiol 2005;75(6):367-90.
Onofrj M, Thomas A. Acute akinesia in Parkinson disease. Neurology 2005;64(7):1162-9.
Aarsland D, Bronnick K, Fladby T. Mild cognitive impairment in Parkinson's disease. Curr Neurol Neurosci Rep 2011;11(4):371-8.
Tarawneh R, Galvin JE. Potential future neuruprotective therapies for neurodegenerative disorders and stroke. Clin Geriatr Med 2010;26(1):125-47.
Ebrahimi A, Hajizadeh Moghaddam A. The effect of hydroalcoholic extract of olive leaf on learning and memorydeficit induced by dopaminergic neurons impairment in male rat. Daneshvar 2015;22(117):1-8.
Jafari F, Doulah A, Rafieirad M. Effect of oleuropein and swimming practice on motor disorder induced by 6-hydroxydopamine toxin in mature male rats. JBRMS 2020; 7 (1) :50-60.
Alipour-NosraniE, Ghazanfari M, Eslahi M, Taghizadeh M. The effect of Zizyphus jujube aqueous extract on learning, memory, locomotor activity and Brain malondialdehyde level in rats with Parkinson's disease. Feyz 2022; 26 (6).
31. Xia X, Yu R, Wang X, Wei M, Li Y, Wang A, Ma Y, Zhang J, Ji Z, Li Y, Wang Q. Role of Eclipta prostrata extract in improving spatial learning and memory deficits in D-galactose-induced aging in rats J Tradit Chin Med. 2019 Oct;39(5):649-657.
Jung WY, Kim H, Park HJ, Jeon SJ, Park HJ, Choi HJ, Kim NJ, Jang DS, Kim DH, Ryu JH. The ethanolic extract of the Eclipta prostrata L. ameliorates the cognitive impairment in mice induced by scopolamine. J Ethnopharmacol. 2016 Aug 22;190:165-73.
Jesberger JA and Richardson JS. Oxygen free radicals and brain dysfunction. Int. J. Neurosci.1991; 57(1-2): 1-17.
Brück A, Kurki T, Kaasinen V, Vahlberg T and Rinne JO. Hippocampal and prefrontal atrophy in patients with early non-demented Parkinson’s disease is related to cognitive impairment. JNNP.2004; 75 (10): 1467-9.
Tanner JJ, McFarland NR, and Price CC. Striatal and Hippocampal Atrophy in Idiopathic Parkinson’s Disease Patients without Dementia: A Morphometric Analysis. Frontiers in Neurology 2017; 8(139): 1-10.
Ebrahimi A, Hajizadeh moghaddam A. The Effect of Olive Leaf Methanolic Extract on Hippocampal Antioxidant Biomarkers in an Animal Model of Parkinson’s Disease. JBCP. 2017; 5(2): 9-14.
Sarkaki A, Farbood Y, Dolatshahi M, Mansouri SM and Khodadadi A. Neuroprotective Effects of Ellagic Acid in a Rat Model of Parkinson's Disease. Acta Med. Iran. 2016; 54(8): 494-502.
Mansouri MT, Farbood Y, Sameri MJ, Sarkaki A, Naghizadeh B and Rafeirad M. Neuroprotective effects of oral gallic acid against oxidative stress induced by 6-hydroxydopamine in rats. Food Chem 2013; 138 (2-3): 1028-33.
Rafieirad M, Eydipour Z. Effect of ellagic acid on thiol levels in different brain tissue in an animal model of Parkinson's disease. JHD. 2014; 4(4): 193-200.
Rafieirad M and Valipour-Chahardah-Charic S. Evaluation of the simultaneous effect of zinc oxide nanoparticles and vitamin C on oxidative stress in rat cerebellum. Feyz. 2018; 22(3): 274-82.
Singh N, Pillay V and Choonara YE. Advances in the treatment of Parkinson's disease. Prog. in Neurobiol. 2007; 81(1): 29-44.
Esmaeili AH, Khavari-Nejad RA, Hajizadeh Moghaddam A, Chaichi MJ and Ebrahimzadeh MA. Effects of Eriobotrya japonica (Lindl.) flower extracts on mercuric chloride-induced hepatotoxicity in rats. Chin. Sci. Bull. 2012; 57(30): 3891-7.
Choi DY and Choi H. Natural products from marine organisms with neuroprotective activity in the experimental models of Alzheimer's disease, Parkinson's disease and ischemic brain stroke: their molecular targets and action mechanisms. Arch. Pharm. Res. 2015; 38(2): 70–139.
Dani C, Pasquali MAB, Oliveira MR, Umezu FM, Salvador M, Henriques JAP and Moreira JCF. Protective Effects of Purple Grape Juice on Carbon Tetrachloride-Induced Oxidative Stress in Brains of Adult Wistar Rats. J. Medicinal Food. 2008; 11(1): 55-61.
Liu S, Zeng TH, Hofmann M, Burcombe E, Wei J, Jiang R, Kong J and Chen Y. Antibacterial activity of graphite, graphite oxide, graphene oxide, and reduced graphene oxide: membrane and oxidative stress. ACS Nano. 2011; 5(9): 6971-80.
Martin HL and Teismann P. Glutathione--a review on its role and significance in Parkinson's disease. FASEB Journal 2009; 23(10): 3263-72.
Pupillo E, Cricelli C, Mazzoleni F, Cricelli I, Pasqua A, Pecchioli S, Lapi F and Beghi E. Epidemiology of Parkinson's Disease: A Population-Based Study in Primary Care in Italy. Neuroepidemiol. 2016; 47(1): 38-45.
Jung YD, Lee H, Lee BR, Yim YK. The effect of anti-cancer and immune response improvement of ELP (Eclipta prostrata) herbal-acupuncture into chok-samni (St36). J. Korean Acupunct. Moxib. Soc. 2003; 20:141–153.
Kim DI, Lee SH, Hong JH, Lillehoj HS, Park HJ, Rhie SG, Lee GS. The butanol fraction of Eclipta prostrata (Linn) increases the formation of brain acetylcholine and decreases oxidative stress in the brain and serum of cesarean-derived rats. Nutr Res.2010; 30:579–84.
50.JaisinY.RatanachamnongP.PrachayasittikulS.WatanapokasinR.Kuanpradit C.Protective effects of ethyl acetate extract of Eclipta prostrata against 6-hydroxydopamine-induced neurotoxicity in SH-SY5Y cells. ScienceAsia2016; 42 :259–265.
Chan CF, WY Huang, HY Guo, and BR Wang. Potent Antioxidative and UVB Protective Effect of Water Extract of Eclipta prostrata L. Hindawi Publishing Corporation. Scientific World Journal. 2014.
52. Lee SH, Jung IJ, Jang The antioxidative effect of Eclipta prostrata L. extract on cultured nih3t3 fibroblasts injured by manganese-induced cytotoxicity. Biomedical Science Letters. 2018; 24(4): 357-364.