1
|
Adetunji TL, Acho MA, Samuel VO, Ohoro CR, Ramulondi M. Erythrina velutina Willd.: A review of its traditional uses, phytochemistry, pharmacology, and toxicology. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117273. [PMID: 37820994 DOI: 10.1016/j.jep.2023.117273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 08/17/2023] [Accepted: 10/02/2023] [Indexed: 10/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Erythrina velutina Willd., commonly known as "mulungu" in Brazil, is a leguminous tree with various traditional medicinal uses. These uses include treating insomnia, central nervous system disorders, convulsions, nervous cough, and inflammation. AIM OF THE REVIEW This review aims to comprehensively summarize the ethnomedicinal uses, chemical constituents, pharmacology, and toxicology of E. velutina to explore its potential as a source for new therapeutic agents. MATERIALS AND METHODS Information was collected from scientific databases, dissertations, and books. Chemical structures were generated using ChemDraw. To ensure the accuracy of the plant names, "World Flora Online" (www.worldfloraonline.org) was consulted for the accepted names of plants. RESULTS E. velutina is indigenous to Brazil, Peru, Ecuador, Colombia, Venezuela, and Hispaniola. Approximately 244 compounds, mainly alkaloids and flavonoids, have been isolated from it. The plant and its extracts have exhibited various bioactivities, such as anti-inflammatory, anxiolytic, anticonvulsant, neuroprotective, analgesic, antimicrobial, and antioxidant effects, validating some of its traditional medicinal uses. Erythrina velutina shows promising therapeutic potential for conditions like convulsion, central nervous disorders, anxiety, insomnia, and inflammation, primarily due to its alkaloid and flavonoid content. CONCLUSION The traditional medicinal uses of the plant, combined with modern scientific research, underscore its pharmacological potential. This makes it a significant candidate for drug development. Further research should focus on conducting toxicological studies, clinical trials, and mechanistic investigations. These efforts will enable a comprehensive exploration of its pharmacological properties and potential applications in drug development.
Collapse
Affiliation(s)
- Tomi Lois Adetunji
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
| | | | | | - Chinemerem Ruth Ohoro
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa.
| | - Mmbulaheni Ramulondi
- Department of Science Access, Faculty of Science, Agriculture and Engineering, University of Zululand, South Africa.
| |
Collapse
|
2
|
Roustaei B, Zarezadeh S, Ghotbi-Ravandi AA. A review on epilepsy, current treatments, and potential of medicinal plants as an alternative treatment. Neurol Sci 2023; 44:4291-4306. [PMID: 37581769 DOI: 10.1007/s10072-023-07010-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/03/2023] [Indexed: 08/16/2023]
Abstract
Epilepsy is considered common neurological diseases that threaten the lives of millions of people all around the world. Since ancient times, different forms of medications have been used to treat this condition. Adverse events associated with treatments and the residence time of available drugs caused to search for safer and more efficient therapies and drugs remain one of the major areas of research interest for scientists. As one of the therapeutics with fewer side effects, plants and their essential oils can be considered replacements for existing treatments. Medicinal plants have proven to be an effective natural source of antiepileptic drugs; most of them have their mechanism of action by affecting GABA receptors in different paths. Cannabis indica and Cymbopogon winterianus are well-known plant species with antiepileptic activities. The current review presenting a list of plants with antiepileptic effects aims to pave the way for finding alternative drugs with fewer side effects for scientists.
Collapse
Affiliation(s)
- Bahar Roustaei
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Somayeh Zarezadeh
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | | |
Collapse
|
3
|
Souza JL, Nunes VV, Calazans CC, Silva-Mann R. Biotechnological potential of medicinal plant Erythrina velutina Willd: A systematic review. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
4
|
Chacon DS, Santos MDM, Bonilauri B, Vilasboa J, da Costa CT, da Silva IB, Torres TDM, de Araújo TF, Roque ADA, Pilon AC, Selegatto DM, Freire RT, Reginaldo FPS, Voigt EL, Zuanazzi JAS, Scortecci KC, Cavalheiro AJ, Lopes NP, Ferreira LDS, dos Santos LV, Fontes W, de Sousa MV, Carvalho PC, Fett-Neto AG, Giordani RB. Non-target molecular network and putative genes of flavonoid biosynthesis in Erythrina velutina Willd., a Brazilian semiarid native woody plant. FRONTIERS IN PLANT SCIENCE 2022; 13:947558. [PMID: 36161018 PMCID: PMC9493460 DOI: 10.3389/fpls.2022.947558] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/26/2022] [Indexed: 06/16/2023]
Abstract
Erythrina velutina is a Brazilian native tree of the Caatinga (a unique semiarid biome). It is widely used in traditional medicine showing anti-inflammatory and central nervous system modulating activities. The species is a rich source of specialized metabolites, mostly alkaloids and flavonoids. To date, genomic information, biosynthesis, and regulation of flavonoids remain unknown in this woody plant. As part of a larger ongoing research goal to better understand specialized metabolism in plants inhabiting the harsh conditions of the Caatinga, the present study focused on this important class of bioactive phenolics. Leaves and seeds of plants growing in their natural habitat had their metabolic and proteomic profiles analyzed and integrated with transcriptome data. As a result, 96 metabolites (including 43 flavonoids) were annotated. Transcripts of the flavonoid pathway totaled 27, of which EvCHI, EvCHR, EvCHS, EvCYP75A and EvCYP75B1 were identified as putative main targets for modulating the accumulation of these metabolites. The highest correspondence of mRNA vs. protein was observed in the differentially expressed transcripts. In addition, 394 candidate transcripts encoding for transcription factors distributed among the bHLH, ERF, and MYB families were annotated. Based on interaction network analyses, several putative genes of the flavonoid pathway and transcription factors were related, particularly TFs of the MYB family. Expression patterns of transcripts involved in flavonoid biosynthesis and those involved in responses to biotic and abiotic stresses were discussed in detail. Overall, these findings provide a base for the understanding of molecular and metabolic responses in this medicinally important species. Moreover, the identification of key regulatory targets for future studies aiming at bioactive metabolite production will be facilitated.
Collapse
Affiliation(s)
- Daisy Sotero Chacon
- Department of Pharmacy, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | | | - Bernardo Bonilauri
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
| | - Johnatan Vilasboa
- Plant Physiology Laboratory, Center for Biotechnology and Department of Botany, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Cibele Tesser da Costa
- Plant Physiology Laboratory, Center for Biotechnology and Department of Botany, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | - Taffarel de Melo Torres
- Bioinformatics, Biostatistics and Computer Biology Nucleus, Rural Federal University of the Semiarid, Mossoró, RN, Brazil
| | | | - Alan de Araújo Roque
- Institute for Sustainable Development and Environment, Dunas Park Herbarium, Natal, RN, Brazil
| | - Alan Cesar Pilon
- NPPNS, Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (FCFRP-USP), Ribeirão Preto, SP, Brazil
| | - Denise Medeiros Selegatto
- Zimmermann Group, European Molecular Biology Laboratory (EMBL), Structural and Computational Biology Unit, Heidelberg, Germany
| | - Rafael Teixeira Freire
- Signal and Information Processing for Sensing Systems, Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology, Barcelona, Spain
| | | | - Eduardo Luiz Voigt
- Department of Cell Biology and Genetics, Center for Biosciences, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | | | - Kátia Castanho Scortecci
- Department of Cell Biology and Genetics, Center for Biosciences, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | | | - Norberto Peporine Lopes
- NPPNS, Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (FCFRP-USP), Ribeirão Preto, SP, Brazil
| | | | - Leandro Vieira dos Santos
- Genetics and Molecular Biology Graduate Program, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Wagner Fontes
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology, University of Brasilia, Brasilia, DF, Brazil
| | - Marcelo Valle de Sousa
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology, University of Brasilia, Brasilia, DF, Brazil
| | - Paulo Costa Carvalho
- Computational and Structural Proteomics Laboratory, Carlos Chagas Institute, Fiocruz, PR, Brazil
| | - Arthur Germano Fett-Neto
- Plant Physiology Laboratory, Center for Biotechnology and Department of Botany, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Raquel Brandt Giordani
- Department of Pharmacy, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| |
Collapse
|
5
|
Anticonvulsant Activity of trans-Anethole in Mice. BIOMED RESEARCH INTERNATIONAL 2022; 2022:9902905. [PMID: 35607305 PMCID: PMC9124115 DOI: 10.1155/2022/9902905] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 02/21/2022] [Accepted: 04/19/2022] [Indexed: 12/30/2022]
Abstract
Epilepsy is a chronic neurological disorder affecting 1-2% of world population, and one-third of patients are refractory to pharmacological treatment. This fact has stimulated research for new antiepileptic drugs and natural products have been an important source. trans-Anethole (TAN) is a phenylpropanoid, component of some essential oils, extracted from plants, and its effects have been little studied. Therefore, this study is aimed at investigating the TAN effect in classic seizure models and evaluate the electroencephalographic (EEG) profile of animals treated with this substance. For this, Swiss male mice (Mus musculus) were used, and the lethal dose was evaluated and subsequently submitted to the test maximal electroshock (MES), the pentylenetetrazole- (PTZ) induced seizure test, and the EEG profile. Initially, the LD50 for TAN was estimated in 1000 mg/kg (i.p.) dose and there was no sign of acute toxicity or death. In the MES test, TAN 300, i.p. (12.00 ± 2.9 s) and 400 mg/kg, i.p. (9.00 ± 4.4 s) doses was able to decrease tonic seizures duration induced by electric discharge (0.5 mA, 150 pulses/s, for 0.5 s). In the PTZ test (75 mg/kg, i.p.), TAN 400 mg/kg, i.p. increased the latency to myoclonic jerks (80.0 (56.0-134.0)), the latency totonic-clonic seizures (900.0 (861.0-900.0) and decrease seizure duration (0.0 (0.0-10.0)). No deaths were found in this groups compared to vehicle. EEG analysis showed an amplitude decrease of waves (ratio of baseline) in TAN 300 (1.82 ± 0.23) and 400 mg/kg (1.06 ± 0.16) groups. In this way, TAN at 400 mg/kg was able to inhibit and/or attenuate seizures by increasing the time for the onset of spasms and convulsions, as reducing the duration of seizures. The EEG profile corroborate with this results showing a reduction in the amplitude of waves compared to the PTZ group. Thus, TAN showed an anticonvulsant effect in all experimental models performed, behavioral and electroencephalographic.
Collapse
|
6
|
Florian SU, Sepulveda B, Torres-Benítez A, Simirgiotis MJ, Fuentes-Estrada M, Areche C, García-Beltrán O. Erythrinoid and indol alkaloids isolated from the seeds of Erythrina rubrinervia Kunth: Chemotaxonomic significance. BIOCHEM SYST ECOL 2021. [DOI: 10.1016/j.bse.2021.104295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
7
|
Kaur J, Famta P, Famta M, Mehta M, Satija S, Sharma N, Vyas M, Khatik GL, Chellappan DK, Dua K, Khurana N. Potential anti-epileptic phytoconstituents: An updated review. JOURNAL OF ETHNOPHARMACOLOGY 2021; 268:113565. [PMID: 33166627 DOI: 10.1016/j.jep.2020.113565] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 10/12/2020] [Accepted: 11/05/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Epilepsy is one of the most commonly occurring non-communicable neurological disorder that affects people of all age groups. Around 50 million people globally are epileptic, with 80% cases in developing countries due to lack of access to treatments determined by high cost and poor availability or it can be defined by the fraction of active epileptic patients who are not appropriately being treated. The availability of antiepileptic drugs and their adjuvant therapy in such countries is less than 50% and these are highly susceptible to drug interactions and severe adverse effects. As a result, the use of herbal medicine is increasingly becoming popular. AIM OF THE STUDY To provide pharmacological information on the active constituents evaluated in the preclinical study to treat epilepsy with potential to be used as an alternative therapeutic option in future. It also provides affirmation for the development of novel antiepileptic drugs derived from medicinal plants. MATERIALS AND METHODS Relevant information on the antiepileptic potential of phytoconstituents in the preclinical study (in-vitro, in-vivo) is provided based on their effect on screening parameters. Besides, relevant information on pharmacology of phytoconstituents, the traditional use of their medicinal plants related to epilepsy and status of phytoconstituents in the clinical study were derived from online databases, including PubMed, Clinicaltrial. gov, The Plant List (TPL, www.theplantlist.org), Science Direct. Articles identified using preset searching syntax and inclusion criteria are presented. RESULTS More than 70% of the phytoconstituents reviewed in this paper justified the traditional use of their medicinal plant related to epilepsy by primarily acting on the GABAergic system. Amongst the phytoconstituents, only cannabidiol and tetrahydrocannabinol have been explored for clinical application in epilepsy. CONCLUSION The preclinical and clinical data of the phytoconstituents to treat epilepsy and its associated comorbidities provides evidence for the discovery and development of novel antiepileptic drugs from medicinal plants. In terms of efficacy and safety, further randomized and controlled clinical studies are required to understand the complete pharmacodynamic and pharmacokinetic picture of phytoconstituents. Also, specific botanical source evaluation is needed.
Collapse
Affiliation(s)
- Jaskiran Kaur
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Paras Famta
- Institute of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab, 160062, India
| | - Mani Famta
- Department of Pharmacy, Birla Institute of Technology and Sciences (BITS), Vidya Vihar Campus, Street Number 41, Pilani, Rajasthan, 333031, India
| | - Meenu Mehta
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Saurabh Satija
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Neha Sharma
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Manish Vyas
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Gopal Lal Khatik
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University (IMU), Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia; Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute (HMRI) & School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Navneet Khurana
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India.
| |
Collapse
|
8
|
Dos Reis SL, Gelfuso EA, Fachin AL, Pereira AMS, Beleboni RO. Pharmacological characterisation of anticonvulsant effects elicited by erythrartine. J Pharm Pharmacol 2021; 73:93-97. [PMID: 33791806 DOI: 10.1093/jpp/rgaa024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 10/15/2020] [Indexed: 11/14/2022]
Abstract
OBJECTIVES The erythrinan alkaloids erythravine and 11α-hydroxy-erythravine from Erythrina verna (Vell.) have been extensively investigated for their anxiolytic and anticonvulsant effects. Both are structurally similar to the erythrartine that also exhibit anxiolytic effects, but there is no report on its anticonvulsant potential. Since some anxiolytic drugs can be useful in the management of epileptic seizures, we investigated whether erythrartine could prevent seizures induced by different chemoconvulsants. METHODS Experiments were performed using different concentrations of erythrartine injected via intracerebroventricular in rats submitted to pilocarpine, kainic acid, pentylenetetrazol or picrotoxin-induced seizures. Moreover, the rotarod test was performed to verify the effects of erythrartine on animal motor coordination. RESULTS Our data showed for the first time that erythrartine prevented the occurrence of seizures induced by all of the chemoconvulsants tested and did not affect locomotor performance neither produced sedative effect on animals. CONCLUSION Obtained results validate the ethnopharmacological significance of E. verna and provide new information on erythrartine, another erythrinian alkaloid of biotechnological and medicinal interest.
Collapse
Affiliation(s)
| | - Erica A Gelfuso
- Department of Biotechnology, University of Ribeirão Preto, Ribeirão Preto, SP, Brazil
- CHU Rennes, Inserm, LTSI (Laboratoire de Traitement du Signal de l'Image), France
| | - Ana Lúcia Fachin
- Department of Biotechnology, University of Ribeirão Preto, Ribeirão Preto, SP, Brazil
- School of Medicine, University of Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | | | - Renê O Beleboni
- Department of Biotechnology, University of Ribeirão Preto, Ribeirão Preto, SP, Brazil
- School of Medicine, University of Ribeirão Preto, Ribeirão Preto, SP, Brazil
| |
Collapse
|
9
|
García-Beltrán O, Areche C, Galdámez A, Moris S. The crystal structure of 1-carboxy-2-(1 H-indol-3-yl)- N, N, N-trimethylethan-1-ammonium chloride, C 14H 19N 2O 2Cl. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2020-0240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C14H19N2O2Cl, tetragonal, P41 (no. 76), a = 6.8614(8) Å, c = 29.820(5) Å, V = 1403.9(4) Å3, Z = 4, R
gt(F) = 0.0311, wR
ref(F
2) = 0.0549, T = 150(2) K.
Collapse
Affiliation(s)
- Olimpo García-Beltrán
- Facultad de Ciencias Naturales y Matemáticas , Universidad de Ibagué , Carrera 22 calle 67, Ibagué 730002, Colombia
| | - Carlos Areche
- Universidad de Chile, Facultad de Ciencias, Departamento de Química , Casilla 653, Santiago, Chile
| | - Antonio Galdámez
- Universidad de Chile, Facultad de Ciencias, Departamento de Química , Casilla 653, Santiago, Chile
| | - Silvana Moris
- Universidad Catolíca del Maule, Vicerectoria de Investigacion y Postgrado , Talca , Chile
| |
Collapse
|
10
|
Amorim J, Borges MDC, Fabro AT, Contini SHT, Valdevite M, Pereira AMS, Carmona F. The ethanolic extract from Erythrina mulungu Benth. flowers attenuates allergic airway inflammation and hyperresponsiveness in a murine model of asthma. JOURNAL OF ETHNOPHARMACOLOGY 2019; 242:111467. [PMID: 30102994 DOI: 10.1016/j.jep.2018.08.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 08/08/2018] [Accepted: 08/09/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Erythrina mulungu Benth. ("mulungu", Fabaceae) is a Brazilian native species with ethnopharmacological use for respiratory diseases. However, the effects of E. mulungu on the respiratory were never studied. AIMS OF THE STUDY To evaluate the effects of an ethanolic extract from flowers of E. mulungu in ovalbumin (OVA)-induced asthma in mice, and to study the mechanisms involved. MATERIALS AND METHODS OVA-sensitized mice were intraperitoneally (i.p.) treated with four doses (200, 400, 600, and 800 mg/kg) of the E. mulungu extract or dexamethasone (DEXA, 2 mg/kg) during seven consecutive days and simultaneously challenged with intranasal OVA. Bronchial hyperresponsiveness was evaluated in vivo, 24 h after the last OVA challenge. Bronchoalveolar lavage (BAL) was collected for counting the number of total and differential inflammatory cells. Blood was collected for measurement of anti-OVA IgE levels. Levels of cytokines interleukin (IL)- 4, IL-5, IL-10, IL-13, and interferon (INF)-γ were measured in pulmonary homogenate by ELISA. The recruitment of inflammatory cells to the lung tissue was determined using hematoxylin and eosin staining (H&E). The extract's chromatographic profile was evaluated by ultra-performance liquid chromatography-mass spectrometry (UPLC-MS). RESULTS The treatment with E. mulungu extract significantly reduced bronchial hyperresponsiveness, significantly reduced the number of leukocytes, eosinophils, and lymphocytes in BAL, and significantly decreased the levels of IL-4 and IL-5, while increased levels of IL-13 and INF-γ. In addition, E. mulungu significantly decreased the cellular inflammatory infiltration in the lung tissue. Erysotrine, erysotrine-N-oxide, and hypaphorine were the major constituents identified in the extract. CONCLUSION Collectively, these results confirm the potential of E. mulungu for asthma treatment, through modulation of inflammatory response, supporting its ethnopharmacological use for respiratory diseases.
Collapse
Affiliation(s)
- Jowanka Amorim
- Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes S/N, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil
| | - Marcos de Carvalho Borges
- Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes S/N, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil
| | - Alexandre Todorovic Fabro
- Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes S/N, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil
| | - Silvia Helena Taleb Contini
- Department of Biotechnology in Medicinal Plants, Ribeirão Preto University, Av. Costábile Romano 2201, 14096-900 Ribeirão Preto, SP, Brazil
| | - Mayara Valdevite
- Department of Biotechnology in Medicinal Plants, Ribeirão Preto University, Av. Costábile Romano 2201, 14096-900 Ribeirão Preto, SP, Brazil
| | - Ana Maria Soares Pereira
- Department of Biotechnology in Medicinal Plants, Ribeirão Preto University, Av. Costábile Romano 2201, 14096-900 Ribeirão Preto, SP, Brazil
| | - Fabio Carmona
- Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes S/N, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil.
| |
Collapse
|
11
|
Chu HB, Tan YD, Li YJ, Cheng BB, Rao BQ, Zhou LS. Anxiolytic and anti-depressant effects of hydroalcoholic extract from Erythrina variegata and its possible mechanism of action. Afr Health Sci 2019; 19:2526-2536. [PMID: 32127825 PMCID: PMC7040268 DOI: 10.4314/ahs.v19i3.28] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Background Erythrina variegata has been widely used as a traditional medicine. Objective The study was designed to evaluate the anxiolytic and anti-depressant effects of an extract from Erythrina variegata. Methods The extract was evaluated for anxiolytic and anti-depressant action using the elevated plus maze, light/dark box, open field, forced swimming and tail suspension tests in mice. The mechanism of action was further elucidated using high-performance liquid chromatography with fluorescence detection methods to assay the levels of five neurotransmitters in brain. Results The extract exhibited significant increase in the percentage of the open arms entries and the time spent in the open arms in the elevated plus maze test. The results of the light/dark box test revealed a significant increase in the amount of time spent in the light chamber. Extract- treated mice also produced significant increase in the number of crossings and rearings in the open field test. In the forced swimming and tail suspension tests, the extract was able to promote significant decrease in the immobility time. In addition, the extract significantly altered the levels of five neurotransmitters in the brain tissue. Conclusion These findings suggest that Erythrina variegata presents potential anxiolytic and anti-depressant activity, and the mechanism may be related to the alteration of neurotransmitter levels.
Collapse
Affiliation(s)
- Hong-Biao Chu
- Department of Pharmacy, School of Medicine, Jinggangshan University, Ji'an 343009, China
| | - Yue-De Tan
- Department of Pharmacy, School of Medicine, Jinggangshan University, Ji'an 343009, China
| | - Yun-Jing Li
- Department of Pharmacy, School of Medicine, Jinggangshan University, Ji'an 343009, China
| | - Bin-Bin Cheng
- Department of Pharmacy, School of Medicine, Jinggangshan University, Ji'an 343009, China
| | - Bao-Qi Rao
- Department of Pharmacy, School of Medicine, Jinggangshan University, Ji'an 343009, China
| | - Ling-Shan Zhou
- Department of Pharmacy, School of Medicine, Jinggangshan University, Ji'an 343009, China
| |
Collapse
|
12
|
Auditeau E, Chassagne F, Bourdy G, Bounlu M, Jost J, Luna J, Ratsimbazafy V, Preux PM, Boumediene F. Herbal medicine for epilepsy seizures in Asia, Africa and Latin America: A systematic review. JOURNAL OF ETHNOPHARMACOLOGY 2019; 234:119-153. [PMID: 30610931 DOI: 10.1016/j.jep.2018.12.049] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 12/29/2018] [Accepted: 12/30/2018] [Indexed: 06/09/2023]
Abstract
RELEVANCE More than 70 million people suffer epilepsy worldwide. Low availability of anti-epileptic drugs, side-effects and drug-resistant epilepsy affect the quality of life of persons with epilepsy in countries with a poorly developed health system. Herbal medicine is frequently used for this neurological condition. OBJECTIVES The main objective was to provide a detailed analysis of Herbal Medicine used for neurological conditions related with epilepsy in Asia, Africa and Latin America. More broadly, this study aims to highlight species with assessed efficacy (cross-cultural use, pharmacological effects on models of epileptic seizures) and safety (toxicological data in laboratory) information, in order to point out species of interest for further studies. A critical assessment of models used in pharmacological evaluations was done. MATERIALS AND METHODS The systematic search for Herbal Medicine treatments for epilepsy was performed considering all the articles published until February 2017 through three scientific databases. It was made with MeSH terms and free text defining the epilepsy seizures and plant species. We included studies carried out in Asia, Africa and Latin America. All articles reporting the use of Herbal Medicine to treat epilepsy seizures and/or their pharmacological evaluation were retained for further analysis. RESULTS The search yielded 1886 articles, from 30 countries. Hundred and six articles published between 1982 and 2017 were included, corresponding to a total of 497 use reports for 351 plant species belonging to 106 families. Three hundred and seventy seven use reports corresponding to 264 species in ethnopharmacological surveys and 120 evaluation reports corresponding to 107 species were noted. Twenty-nine reports, for 29 species, combined both ethnopharmacological and pharmacological evaluation. Fifty eight studies originated from Africa, 35 studies from Asia and 18 from Latin America. Highest use report was noted for rhizomes of Acorus calamus L. (12 use report in 1 country) and leaves of Bacopa monnieri (L.) Wettst. (8 use report in 2 countries). Therefore these species display the highest use convergence. Regarding pharmacological evaluation most studied species were: Leonotis leonurus (L.) R.Br. (4 evaluation reports in 1 country), Uncaria rhynchophylla (Miq.) Miq. ex Havil. (3 evaluation reports in 2 countries) and Calotropis gigantea (L.) Dryand. (3 evaluation reports in 1 country). In vivo models of chronic epilepsy were more relevant than in vitro models or chemical models inducing acute seizures for pharmacological assessment. CONCLUSION Species with the highest use report were not those with pharmacological evaluation. It will be pertinent to assess the pharmacological effects and safety of medicinal plants used mostly by traditional healers on predictive models of seizures.
Collapse
Affiliation(s)
- Emilie Auditeau
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - François Chassagne
- UMR 152 Research Institute for the development, University Toulouse 3, Pharmaceutical sciences Faculty, 35 chemin des Maraîchers, 31400 Toulouse, France; Center for the Study of Human Health, Emory University, Atlanta, GA, USA.
| | - Geneviève Bourdy
- UMR 152 Research Institute for the development, University Toulouse 3, Pharmaceutical sciences Faculty, 35 chemin des Maraîchers, 31400 Toulouse, France.
| | - Mayoura Bounlu
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Institute of Francophonie for Tropical Medicine, Vientiane, Lao Democratic People's Republic.
| | - Jérémy Jost
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - Jaime Luna
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - Voa Ratsimbazafy
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - Pierre-Marie Preux
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - Farid Boumediene
- INSERM, U1094, Tropical Neuroepidemiology, 2 rue du Dr Marcland, 87025 Limoges, France; Univ. Limoges, UMR 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2 rue du Dr Marcland, 87025 Limoges, France.
| |
Collapse
|
13
|
Rambo DF, Biegelmeyer R, Toson NSB, Dresch RR, Moreno PRH, Henriques AT. The genus Erythrina L.: A review on its alkaloids, preclinical, and clinical studies. Phytother Res 2019; 33:1258-1276. [PMID: 30767297 DOI: 10.1002/ptr.6321] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 01/04/2019] [Accepted: 01/28/2019] [Indexed: 12/13/2022]
Abstract
Erythrina L. genus (Fabaceae) comprises about 115 species, and it has been extensively studied, mainly because of its alkaloids, which have pharmacological properties. References demonstrated that Erythrina spp. have a potential to act in the central nervous system, presenting anxiolytic and anticonvulsant properties already established. Phytochemical investigations confirmed the presence of tetracyclic alkaloids as the major compounds. However, other alkaloid classes have also been reported, including dimeric and trimeric substances, coupled through direct polymerization or two erythrinine units via an acetyl glucose. The present review covers the relevant literature from 1990 until 2017 and outlines the current data on chemical composition and preclinical and clinical studies on Erythrina species. Additionally, the quite striking analogy in the biosynthetic route of erythrin, morphinans, and Amaryllidaceae family alkaloids was also discussed.
Collapse
Affiliation(s)
- Douglas F Rambo
- Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Renata Biegelmeyer
- Departamento do Medicamento, Faculdade de Farmácia, Universidade Federal da Bahia (UFBA), Salvador, BA, Brazil
| | - Natally S B Toson
- Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Roger R Dresch
- Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Paulo Roberto H Moreno
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Amélia T Henriques
- Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| |
Collapse
|
14
|
Dias KCF, de Almeida JC, Vasconcelos LC, Patrocínio MLV, Barbosa TM, Ximenes NC, Leitão APDA, Louchard BO, Pimenta ATÁ, Pinto FDCL, Leal LKAM, Honório Junior JER, Vasconcelos SMM. Standardized extract of Erythrina velutina Willd. attenuates schizophrenia-Like behaviours and oxidative parameters in experimental animal models. J Pharm Pharmacol 2018; 71:379-389. [PMID: 30456833 DOI: 10.1111/jphp.13039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 10/19/2018] [Indexed: 12/14/2022]
Abstract
OBJECTIVES To study the effects of the standardized extract from the leaves of Erythrina velutina in behavioural and oxidative parameters in the ketamine-induced schizophrenia model. METHODS Mice received ketamine (KET) or saline for 7 days. From 8th to 14th day, the animals received Erythrine (Eryt) (100, 200 or 400 mg/kg) or olanzapine (Olanz), 1 h after KET administration. At 14th day, 30 min after the last administration of KET, the open-field and pre-pulse inhibition (PPI) tests were performed. Then, the animals were sacrificed and the prefrontal cortex (PFC), hippocampus (HC) and striatum (ST) were dissected for the oxidative tests. KEY FINDINGS Ketamine increased spontaneous locomotor activity and grooming. KET decreased the PPI, which was reversed by combining it with Eryt or olanzapine. KET decreased GSH concentration in PFC and ST this was reversed by Eryt. KET increased MDA concentration in PFC and HC this was reversed by Eryt. Eryt and Olanzapine reduced MDA concentration in ST when compared to KET group. Nitrite concentration was reduced by administration of KET in the PFC. CONCLUSIONS These results demonstrate that the standardized extract of E. velutina can prevent behavioural symptoms and oxidative stress induced by repeated doses of KET.
Collapse
Affiliation(s)
- Katia Cilene Ferreira Dias
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Ceará, Brazil
| | - Jamily Cunha de Almeida
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Ceará, Brazil
| | - Luna Costa Vasconcelos
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Ceará, Brazil
| | | | - Talita Matias Barbosa
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Ceará, Brazil
| | - Naiara Coelho Ximenes
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Ceará, Brazil
| | | | | | | | | | | | - José Eduardo Ribeiro Honório Junior
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Ceará, Brazil.,School of Medicine, University Center Christus-Unichristus, Ceará, Brazil
| | | |
Collapse
|
15
|
Fabaceae medicinal flora with therapeutic potential in Savanna areas in the Chapada do Araripe, Northeastern Brazil. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2018. [DOI: 10.1016/j.bjp.2018.06.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
16
|
Ximenes NC, Dos Santos Júnior MA, Vasconcelos GS, Dias KCF, Jucá MM, Silva AH, Leal LKAM, Viana GSB, de Sousa FCF, Vasconcelos SMM. Ethanolic extract of Erythrina velutina Willd ameliorate schizophrenia-like behavior induced by ketamine in mice. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2018; 16:/j/jcim.ahead-of-print/jcim-2018-0038/jcim-2018-0038.xml. [PMID: 30315736 DOI: 10.1515/jcim-2018-0038] [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] [Received: 04/11/2018] [Accepted: 09/12/2018] [Indexed: 06/08/2023]
Abstract
Background Schizophrenia is a chronic mental disorder, characterized by positive, negative and cognitive symptoms. In general, several plants have shown activity in diseases related to the central nervous system (e.g., Erythrina velutina (EEEV), also known as "mulungu"). For this reason, we aimed to investigate the effects of standardized ethanol extract obtained from the stem bark of EEEV on the schizophrenia-like behaviors induced by ketamine (KET) administration. Methods Swiss mice were treated with KET (20 mg/kg, i.p.) or saline for 14 days. In addition, from 8th to 14th days, saline, EEEV (200 or 400 mg/kg, p.o.) or olanzapine (OLAN 2 mg/kg, p.o.) were associated to the protocol. On the 14th day of treatment, schizophrenia-like symptoms were evaluated by the prepulse inhibition of the startle reflex (PPI), locomotor activity evaluated by the open field test (OFT), spatial recognition memory evaluated by the Y-maze task and social interaction test (SIT). Results KET has caused deficits in PPI, and it has also has caused hyperlocomotion in OFT and deficits in SIT as compared to control. EEEV in both doses used, reversed behavioral changes induced by KET, likewise results obtained with the administration of OLAN. Conclusions Taken together, the results demonstrate that the standard extract of EEEV was able to revert schizophrenia-like symptoms, due to the administration in repeated doses of ketamine. Thus, our findings lead to a new perspective for the use of EEEV an interesting alternative for drug discovery in schizophrenia.
Collapse
Affiliation(s)
- Naiara Coelho Ximenes
- Department of Physiology and Pharmacology, Federal University of Ceara, Cel. Nunes de Melo 1127, CEP 60431-270, Fortaleza, Brazil
| | - Manuel Alves Dos Santos Júnior
- Department of Physiology and Pharmacology, Federal University of Ceara, Cel. Nunes de Melo 1127, CEP 60431-270, Fortaleza, Brazil
| | - Germana Silva Vasconcelos
- Department of Physiology and Pharmacology, Federal University of Ceara, Cel. Nunes de Melo 1127, CEP 60431-270, Fortaleza, Brazil
| | - Kátia Cilene Ferreira Dias
- Department of Physiology and Pharmacology, Federal University of Ceara, Cel. Nunes de Melo 1127, CEP 60431-270, Fortaleza, Brazil
| | - Mércia Marques Jucá
- Department of Physiology and Pharmacology, Federal University of Ceara, Cel. Nunes de Melo 1127, CEP 60431-270, Fortaleza, Brazil
| | - Aline Holanda Silva
- Department of Pharmacy, Federal University of Ceará, Capitão Francisco Pedro Street 1210, Fortaleza, CE CEP: 60430-170, Brazil
| | | | - Glauce Socorro Barros Viana
- Department of Physiology and Pharmacology, Federal University of Ceara, Cel. Nunes de Melo 1127, CEP 60431-270, Fortaleza, Brazil
| | - Francisca Cléa Florenço de Sousa
- Department of Physiology and Pharmacology, Federal University of Ceara, Cel. Nunes de Melo 1127, CEP 60431-270, Fortaleza, Brazil
| | | |
Collapse
|
17
|
Rodrigues FTS, de Sousa CNS, Ximenes NC, Almeida AB, Cabral LM, Patrocínio CFV, Silva AH, Leal LKAM, Honório Júnior JER, Macedo D, Vasconcelos SMM. Effects of standard ethanolic extract from Erythrina velutina in acute cerebral ischemia in mice. Biomed Pharmacother 2017; 96:1230-1239. [PMID: 29174035 DOI: 10.1016/j.biopha.2017.11.093] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 11/11/2017] [Accepted: 11/17/2017] [Indexed: 12/31/2022] Open
Abstract
The objective of this study was to verify a possible neuroprotective effect of the ethanolic extract of Erythrina velutina (EEEV). Male Swiss mice were submitted to transient cerebral ischemia by occlusion of both carotid arteries for 30 min and treated for 5 days with EEEV (200 or 400 mg/kg) or Memantine (MEM) 10 mg/kg, with initiation of treatment 2 or 24 h after Ischemia. On the 6th day after the induction of ischemia, the animals were submitted to evaluation of locomotor activity and memory and then sacrificed. The brains were dissected for the removal of the prefrontal cortex (PFC), hippocampus (HC) and striatum (ST) for determination of amino acid concentrations. In the step down and Y-maze tests, ischemia caused damage to the animals and treatment with EEEV or MEM reversed this effect. The animals submitted to ischemia also showed memory deficit in the object recognition test, an effect that was reverted by EEEV400 and MEM10. Amino acid dosage showed an increase in excitatory amino acid concentrations in the PFC of the ischemic animals and this effect was reversed by the treatment with EEEV400/24H. Regarding the inhibitory amino acids, ischemia caused an increase of taurine in the PFC while treatment with MEM10/24H or EEEV400/24H reversed this effect. In HC, an increase in excitatory amino acids was also observed in ischemiated animals having treatment with EEEV200/2H or EEEV400/24H reversed this effect. Similar effect was also observed in the same area in relation to the inhibitory amino acids with treatment with MEM10/24H or EEEV400/24H. In the ST, ischemia was also able to cause an increase in excitatory amino acids that was reversed more efficiently by the treatments with MEM10/24H and EEEV200. Also in this area, an increase of taurine and GABA was observed and only the treatment with EEEV200/2H showed a reversion of this effect. In view of these findings, EEEV presents a neuroprotective effect possibly due to its action on amino acid concentrations, and is therefore a potential therapeutic tool in reducing the damage caused by ischemia.
Collapse
Affiliation(s)
- Francisca Taciana Sousa Rodrigues
- Department of Physiology and Pharmacology, Federal University of Ceara, Brazil; University Centre Christus, Fortaleza, Ceará, Brazil
| | | | | | | | - Lucas Moraes Cabral
- Department of Physiology and Pharmacology, Federal University of Ceara, Brazil
| | | | | | | | | | - Danielle Macedo
- Department of Physiology and Pharmacology, Federal University of Ceara, Brazil
| | | |
Collapse
|
18
|
Al-Shamary DS, Al-Alshaikh MA, Kheder NA, Mabkhot YN, Badshah SL. Molecular docking and biological evaluation of some thioxoquinazolin-4(3H)-one derivatives as anticancer, antioxidant and anticonvulsant agents. Chem Cent J 2017; 11:48. [PMID: 29086826 PMCID: PMC5451370 DOI: 10.1186/s13065-017-0272-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 05/16/2017] [Indexed: 01/27/2023] Open
Abstract
Background The quinazoline are an important class of medicinal compounds that possess a number of biological activities like anticancer, anticonvulsant and antioxidant etc. Results We evaluated the previously synthesized quinazoline derivatives 1–3 for their anticancer activities against three cancer cell lines (HepG2, MCF-7, and HCT-116). Among the tested compounds, quinazolines 1 and 3 were found to be more potent than the standard drug Vinblastine against HepG2 and MCF-7 cell lines. All the tested compounds had less antioxidant activity and did not exhibit any anticonvulsant activity. Also, molecular docking studies were performed to get an insight
into the binding modes of the compounds with human cyclin-dependent kinase 2, butyrylcholinesterase enzyme, human gamma-aminobutyric acid receptor. These compounds showed better docking properties with the CDK2 as compared to the other two enzymes. Conclusions The overall study showed that thioxoquinazolines are suitable antitumor agents and they should be explored for other biological activities. Modification in the available lot of quinazoline and synthesis of its novel derivatives is essential to explore the potential of this class of compounds. The increase in the threat and with the emergence of drug resistance, it is important to explore and develop more efficacious drugs.
Collapse
Affiliation(s)
- Danah S Al-Shamary
- Women Students-Medical Studies & Sciences Sections, Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Monirah A Al-Alshaikh
- Women Students-Medical Studies & Sciences Sections, Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Nabila Abdelshafy Kheder
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Khalid University, Abha, 61441, Saudi Arabia
| | - Yahia Nasser Mabkhot
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
| | - Syed Lal Badshah
- Department of Chemistry, Islamia College University Peshawar, Peshawar, 25120, Pakistan.
| |
Collapse
|
19
|
Monaco A, Szulc BR, Rao ZX, Barniol-Xicota M, Sehailia M, Borges BMA, Hilton ST. Short Total Synthesis of (±)-γ-Lycorane by a Sequential Intramolecular Acylal Cyclisation (IAC) and Intramolecular Heck Addition Reaction. Chemistry 2017; 23:4750-4755. [PMID: 28217842 DOI: 10.1002/chem.201700143] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Indexed: 01/23/2023]
Abstract
An intramolecular acylal cyclisation (IAC) approach to the synthesis of a range of bicyclic heterocycles is reported. As an example of the utility of the IAC reaction, the methodology was applied in a protecting-group-free five-step total synthesis of (±)-γ-lycorane, incorporating a new intramolecular Heck addition reaction to generate the pentacyclic core structure of the natural product in good yield.
Collapse
Affiliation(s)
- Alessandra Monaco
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Blanka R Szulc
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Zenobia X Rao
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Marta Barniol-Xicota
- Laboratori de Química Farmacèutica (Unitat Associada al CSIC), Facultat de Farmàcia, Institute of Biomedicine (IBUB), Universitat de Barcelona, Av. Joan XXIII, s/n, 08028, Barcelona, Spain
| | - Moussa Sehailia
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Bruno M A Borges
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Stephen T Hilton
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| |
Collapse
|
20
|
Silva AH, Fonseca FN, Pimenta ATA, Lima MS, Silveira ER, Viana GSB, Vasconcelos SMM, Leal LKAM. Pharmacognostical Analysis and Protective Effect of Standardized Extract and Rizonic Acid from Erythrina velutina against 6-Hydroxydopamine-Induced Neurotoxicity in SH-SY5Y Cells. Pharmacogn Mag 2016; 12:307-312. [PMID: 27867274 PMCID: PMC5096278 DOI: 10.4103/0973-1296.192200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Erythrina velutina is a tree common in the northeast of Brazil extensively used by traditional medicine for the treatment of central nervous system disorders. OBJECTIVE To develop a standardized ethanol extract of E. velutina (EEEV) and to investigate the neuroprotective potential of the extract and rizonic acid (RA) from E. velutina on neuronal cells. MATERIALS AND METHODS The plant drug of E. velutina previously characterized was used for the production of EEEV. Three methods were evaluated in order to obtain an extract with higher content of phenols. The neuroprotective effect of standardized EEEV (HPLC-PDA) and RA was investigated on SH-SY5Y cell exposure to the neurotoxin 6-hydroxydopamine (6-OHDA). RESULTS The powder of the plant drug was classified as moderately coarse and several quality control parameters were determined. EEEV produced by percolation gave the highest phenol content when related to others extractive methods, and its HPLC-PDA analysis allowed to identify four flavonoids and RA, some reported for the first time for the species. EEEV and RA reduced significantly the neurotoxicity induced by 6-OHDA in SH-SY5Y cells determined by the MTT assay and the nitrite concentration. EEEV also showed a free radical scavenging activity. CONCLUSION This is the first pharmacological study about E. velutina which used a controlled standardized extract since the preparation of the herbal drug. This extract and RA, acting as an antioxidant, presents a neuroprotective effect suggesting that they have potential for future development as a therapeutic agent in neurodegenerative disease as Parkinson. SUMMARY The powder of Erythrina velutina was classified as moderately coarse and several quality-control parameters were determined.Ethanolic extract from E. velutina (EEEV) produced by percolation gave the highest phenol content when related to others extractive methods and its HPLC-PDA analysis of EEEV allowed to identify four flavonoids and rizonic acid (RA), some reported for the first time for the species.The EEEV and RA reduced significantly the neurotoxicity induced by 6-OHDA in SH-SY5Y cells determined by the MTT assay and the nitrite concentration.The EEEV also showed a free radical scavenging activity. Abbreviations used: ±: More or less, %: Percentage, °C: Degree Celsius, <: Less than, μg: Microgram, μL: Microliter, μM: Micromol, [1D] MNR: One-dimensional nuclear magnetic resonance spectroscopy, [2D] MNR:Two-dimensional nuclear magnetic resonance spectroscopy, 6-OHDA: [6-] Hydroxydopamine. Abs: Absorbance, CFU: Colony forming units, CH2Cl2: Dichloromethane, CHCl3: Chloroform cmCentimeter, DMEM/F12: Dulbecco's Modified Eagle's Medium: Nutrient Mixture F-12. DMSO: Dimethyl sulfoxide, DPPH: 1,1-Diphenyl-2-picrylhydrazyl, EAG: Gallic acid equivalents, EEEV: Ethanolic extract of Erythrina velutina, EtOAc: Ethyl acetate, g: Gram, h: Hour, H2O: Water, HPLC: High-performance liquid chromatography, H REIMS: Hydrogen rapid evaporative ionization mass spectrometry, Kg: Kilogram M: Molar, m: Metro, MeOH: Methanol, mg: Milligram, min: Minute, mL: Milliliter, mm: Millimeter, MTT: Bromide 3 [4,5-dimethylthiazol-2-yl] -2,5-diphenyltetrazolium, N: Normal, NBT: Nitroblue tetrazolium, nm: Nanometer, PDA: Photodiode array detector, TPC: Total polyphenol content, RA: Rizonic acid, RP: Reverse phase, SOD: Superoxide dismutase, v/v: Volume per volume, Vs: Versus W: Watts.
Collapse
Affiliation(s)
- Aline H Silva
- Centro de Estudos Farmacêuticos e Cosméticos (CEFAC), Departamento de Farmácia, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Fortaleza, Brasil
| | - Francisco Noé Fonseca
- Centro de Estudos Farmacêuticos e Cosméticos (CEFAC), Departamento de Farmácia, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Fortaleza, Brasil
| | - Antônia T A Pimenta
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Brasil
| | - MaryAnne S Lima
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Brasil
| | - Edilberto Rocha Silveira
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Brasil
| | - Glauce S B Viana
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, Brasil
| | - Silvânia M M Vasconcelos
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, Brasil
| | - Luzia Kalyne A M Leal
- Centro de Estudos Farmacêuticos e Cosméticos (CEFAC), Departamento de Farmácia, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Fortaleza, Brasil
| |
Collapse
|
21
|
Monaco A, Aliev AE, Hilton ST. Intramolecular Acylal Cyclisation (IAC) as an Efficient Synthetic Strategy towards the Total Synthesis of Erythrina Alkaloid Derivatives. Chemistry 2015; 21:13909-12. [DOI: 10.1002/chem.201502436] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Indexed: 02/03/2023]
Affiliation(s)
- Alessandra Monaco
- UCL School of Pharmacy, University College London, 29–39 Brunswick Square, London, WC1N 1AX (UK)
| | - Abil E. Aliev
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ (UK)
| | - Stephen T. Hilton
- UCL School of Pharmacy, University College London, 29–39 Brunswick Square, London, WC1N 1AX (UK)
| |
Collapse
|
22
|
Setti-Perdigão P, Serrano MAR, Flausino OA, Bolzani VS, Guimarães MZP, Castro NG. Erythrina mulungu alkaloids are potent inhibitors of neuronal nicotinic receptor currents in mammalian cells. PLoS One 2013; 8:e82726. [PMID: 24349349 PMCID: PMC3862643 DOI: 10.1371/journal.pone.0082726] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 11/04/2013] [Indexed: 11/18/2022] Open
Abstract
Crude extracts and three isolated alkaloids from Erythrina mulungu plants have shown anxiolytic effects in different animal models. We investigated whether these alkaloids could affect nicotinic acetylcholine receptors and if they are selective for different central nervous system (CNS) subtypes. Screening experiments were performed using a single concentration of the alkaloid co-applied with acetylcholine in whole cell patch-clamp recordings in three different cell models: (i) PC12 cells natively expressing α3* nicotinic acetylcholine receptors; (ii) cultured hippocampal neurons natively expressing α7* nicotinic acetylcholine receptors; and (iii) HEK 293 cells heterologoulsy expressing α4β2 nicotinic acetylcholine receptors. For all three receptors, the percent inhibition of acetylcholine-activated currents by (+)-11á-hydroxyerysotrine was the lowest, whereas (+)-erythravine and (+)-11á-hydroxyerythravine inhibited the currents to a greater extent. For the latter two substances, we obtained concentration-response curves with a pre-application protocol for the α7* and α4β2 nicotinic acetylcholine receptors. The IC50 obtained with (+)-erythravine and (+)-11á-hydroxyerythravine were 6 µM and 5 µM for the α7* receptors, and 13 nM and 4 nM for the α4β2 receptors, respectively. Our data suggest that these Erythrina alkaloids may exert their behavioral effects through inhibition of CNS nicotinic acetylcholine receptors, particularly the α4β2 subtype.
Collapse
Affiliation(s)
- Pedro Setti-Perdigão
- Laboratório de Farmacologia Molecular, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria A. R. Serrano
- Núcleo de Bioensaios, Biossíntese e Ecofisiologia de Produtos Naturais (NuBBE), Instituto de Química, Universidade Estadual Paulista Júlio de Mesquita Filho, Araraquara, Brazil
| | - Otávio A. Flausino
- Núcleo de Bioensaios, Biossíntese e Ecofisiologia de Produtos Naturais (NuBBE), Instituto de Química, Universidade Estadual Paulista Júlio de Mesquita Filho, Araraquara, Brazil
| | - Vanderlan S. Bolzani
- Núcleo de Bioensaios, Biossíntese e Ecofisiologia de Produtos Naturais (NuBBE), Instituto de Química, Universidade Estadual Paulista Júlio de Mesquita Filho, Araraquara, Brazil
| | - Marília Z. P. Guimarães
- Laboratório de Farmacologia Molecular, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Newton G. Castro
- Laboratório de Farmacologia Molecular, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail:
| |
Collapse
|
23
|
Bhosle V. Anticonvulsant and antioxidant activity of aqueous leaves extract of Desmodium triflorum in mice against pentylenetetrazole and maximal electroshock induced convulsion. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2013. [DOI: 10.1590/s0102-695x2013005000047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
24
|
Erysothrine, an alkaloid extracted from flowers of Erythrina mulungu Mart. ex Benth: evaluating its anticonvulsant and anxiolytic potential. Epilepsy Behav 2012; 23:205-12. [PMID: 22381390 DOI: 10.1016/j.yebeh.2012.01.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 12/13/2011] [Accepted: 01/08/2012] [Indexed: 11/21/2022]
Abstract
In this study, we isolated the alkaloid erysothrine from the hydroalcoholic extract of flowers from E. mulungu and screened for its anticonvulsant and anxiolytic actions based on neuroethological and neurochemical experiments. Our results showed that the administration of erysothrine inhibited seizures evoked by bicuculline, PTZ, NMDA and most remarkably, kainic acid. Also, erysothrine induced an increase in the number of entries but not in the time spent in the open arms of the EPM. However, we did not notice any alterations in the light-dark choice or in the open-field tests. In preliminary neurochemistry tests, we also showed that erysothrine (0.001-10 μg/mL) did not alter the GABA or glutamate synaptossomal uptake and binding. Altogether, our results describe an alkaloid with anticonvulsant activity and mild anxiolytic activity that might be considered well tolerated as it does not alter the general behavior of the animals in the used doses.
Collapse
|
25
|
Azikiwe CCA, Siminialayi IM, Brambaifa N, Amazu LU, Enye JC, Ezeani MC. Anticonvulsant activity of the fractionated extract of Crinum jagus bulbs in experimental animals. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2012. [DOI: 10.1016/s2222-1808(12)60201-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
26
|
Faggion SA, Cunha AOS, Fachim HA, Gavin AS, dos Santos WF, Pereira AMS, Beleboni RO. Anticonvulsant profile of the alkaloids (+)-erythravine and (+)-11-α-hydroxy-erythravine isolated from the flowers of Erythrina mulungu Mart ex Benth (Leguminosae-Papilionaceae). Epilepsy Behav 2011; 20:441-6. [PMID: 21277832 DOI: 10.1016/j.yebeh.2010.12.037] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 11/17/2010] [Accepted: 12/22/2010] [Indexed: 10/18/2022]
Abstract
Neural mechanisms underlying the onset and maintenance of epileptic seizures involve alterations in inhibitory and/or excitatory neurotransmitter pathways. Thus, the prospecting of novel molecules from natural products that target both inhibition and excitation systems has deserved interest in the rational design of new anticonvulsants. We isolated the alkaloids (+)-erythravine and (+)-11-α-hydroxy-erythravine from the flowers of Erythrina mulungu and evaluated the action of these compounds against chemically induced seizures in rats. Our results showed that the administration of different doses of (+)-erythravine inhibited seizures evoked by bicuculline, pentylenetetrazole, and kainic acid at maximum of 80, 100, and 100%, respectively, whereas different doses of (+)-11-α-hydroxy-erythravine inhibited seizures at a maximum of 100% when induced by bicuculline, NMDA, and kainic acid, and, to a lesser extent, PTZ (60%). The analysis of mean latency to seizure onset of nonprotected animals, for specific doses of alkaloids, showed that (+)-erythravine increased latencies to seizures induced by bicuculline. Although (+)-erythravine exhibited very weak anticonvulsant action against seizures induced by NMDA, this alkaloid increased the latency in this assay. The increase in latency to onset of seizures promoted by (+)-11-α-hydroxy-erythravine reached a maximum of threefold in the bicuculline test. All animals were protected against death when treated with different doses of (+)-11-α-hydroxy-erythravine in the tests using the four chemical convulsants. Identical results were obtained when using (+)-erythravine in the tests of bicuculline, NMDA, and PTZ, and, to a lesser extent, kainic acid. Therefore, these data validate the anticonvulsant properties of the tested alkaloids, which is of relevance in consideration of the ethnopharmacological/biotechnological potential of E. mulungu.
Collapse
|
27
|
Silva MR, Ximenes RM, da Costa JGM, Leal LKAM, de Lopes AA, Viana GSDB. Comparative anticonvulsant activities of the essential oils (EOs) from Cymbopogon winterianus Jowitt and Cymbopogon citratus (DC) Stapf. in mice. Naunyn Schmiedebergs Arch Pharmacol 2010; 381:415-26. [PMID: 20237771 DOI: 10.1007/s00210-010-0494-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Accepted: 02/03/2010] [Indexed: 11/24/2022]
Abstract
The fresh leaves of Cymbopogon citratus are a good source of an essential oil (EO) rich in citral, and its tea is largely used in the Brazilian folk medicine as a sedative. A similar source of EO is Cymbopogon winterianus, rich in citronellal. The literature presents more studies on the EO of C. citratus and their isolated bioactive components, but only a few are found on the EO of C. winterianus. The objective of the present study was then to study, in a comparative way, the effects of both EOs on three models of convulsions (pentylenetetrazol, pilocarpine, and strychnine) and on the barbiturate-induced sleeping time on male Swiss mice. The animals (20-30 g) were acutely treated with 50, 100, and 200 mg kg(-1), intraperitoneally, of each EO, and 30 min later, the test was initiated. The observed parameters were: latency to the first convulsion and latency to death in seconds. Furthermore, the in vitro effects of the EOs were also studied on myeloperoxidase (MPO; a biomarker for inflammation) and lactate dehydrogenase (LDH; an index of cytotoxicity) releases from human neutrophils. The EOs radical-scavenging activities were also evaluated by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. The results showed that both EOs were more active on the pentylenetetrazol-induced convulsion model, and C. citratus was even more efficient in increasing latency to the first convulsion and latency to death. Both parameters were potentiated in the presence of a lower dose of diazepam (reference drug) when associated to a lower dose of each EO (25 mg kg(-1)). Besides, their anticonvulsant effects were blocked by flumazenil, a known benzodiazepine antagonist. This effect was somewhat lower on the pilocarpine-induced convulsion, and better effects were seen only with the EOs' higher doses (200 mg kg(-1)). A similar result was observed on the strychnine-induced convulsion model. Both EOs potentiated the barbiturate-induced sleeping time. However, C. citratus was more efficient. Interestingly, both EOs completely blocked the MPO release from human neutrophils and showed no cytotoxic effect on the LDH release from human neutrophils. On the other hand, only a very low or no effect on the DPPH assay was observed with C. winterianus and C. citratus, respectively, indicating that the radical scavenging activity did not play a role on the EOs' effects. We conclude that the mechanism of action of the anticonvulsant effect of the EOs studied is, at least in part, dependent upon the GABAergic neurotransmission. In addition, their effects on inflammatory biomarkers can also contribute to their central nervous system activity.
Collapse
Affiliation(s)
- Monalisa Ribeiro Silva
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará (UFC), Rua Cel. Nunes de Melo 1127, Fortaleza 60430-270, Ceará, Brazil
| | | | | | | | | | | |
Collapse
|
28
|
Carvalho ACCS, Almeida DS, Melo MGD, Cavalcanti SCH, Marçal RM. Evidence of the mechanism of action of Erythrina velutina Willd (Fabaceae) leaves aqueous extract. JOURNAL OF ETHNOPHARMACOLOGY 2009; 122:374-378. [PMID: 19146942 DOI: 10.1016/j.jep.2008.12.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2007] [Revised: 11/26/2008] [Accepted: 12/16/2008] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Erythrina velutina is traditionally used for sleepiness, convulsions and nervous system excitation in Brazil. Although central effects have been reported for Erythrina velutina, little is known about its mechanism of action. AIM OF THE STUDY To investigate the pharmacological evidences of mechanism of action of Erythrina velutina leaves aqueous extract (AE). MATERIALS AND METHODS Terminal segments of the guinea-pig ileum (n=5-8) were mounted in an organ bath and isotonic contractions were recorded. Phytochemical screening was carried out on AE. RESULTS AE (0.025-2.50 mg/ml) produced contractile response in the guinea-pig ileum, yielding typical concentration-response curves (EC50=0.63 mg/ml). Electrically evoked contractions were significantly increased in the presence of AE. AE-elicited contractions were significantly reduced by bicuculline, tetrodotoxin, atropine, verapamil or incubation in low calcium-high potassium solution. Atropine along with verapamil abolished AE contractile response. Alkaloids, catechins, steroids, flavonols, flavononols, flavonoids, phenols, saponins, tannins, triterpenoids, and xanthones were detected in AE. CONCLUSIONS AE contains important constituents for pharmacological activities. AE-induced contractions seem to involve GABAA receptor activation, acetylcholine release, muscarinic receptor activation, augmentation of Ca2+ entry through L-type calcium channels, and calcium release from the intracellular stores. These findings provide further support for Erythrina velutina traditional uses.
Collapse
Affiliation(s)
- Ana Carla C S Carvalho
- Pharmacology Research Laboratory, Physiology Department, Federal University of Sergipe, Av Marechal Rondon, s/n, São Cristóvão, Sergipe, 49.100-000, Brazil
| | | | | | | | | |
Collapse
|
29
|
Raupp IM, Sereniki A, Virtuoso S, Ghislandi C, Cavalcanti E Silva EL, Trebien HA, Miguel OG, Andreatini R. Anxiolytic-like effect of chronic treatment with Erythrina velutina extract in the elevated plus-maze test. JOURNAL OF ETHNOPHARMACOLOGY 2008; 118:295-299. [PMID: 18550307 DOI: 10.1016/j.jep.2008.04.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2007] [Revised: 04/08/2008] [Accepted: 04/15/2008] [Indexed: 05/26/2023]
Abstract
INTRODUCTION In Brazil, Erythrina velutina (Fabaceae) is widely used as a tranquilizer and/or sedative, and its extract exerts an anxiolytic-like effect profile in animal models, although these results may be caused by its sedative or amnesic effects. AIMS, MATERIALS AND METHODS: Thus, this study evaluated the effect of acute and chronic (23-26 days) administrations of the hydroalcoholic extract of the stem bark of Erythrina velutina (orally) in mice submitted to the following tests: elevated plus-maze, forced swim, spontaneous locomotor activity, and habituation to active chamber. Chlordiazepoxide and imipramine were used as standard drugs. RESULTS In the elevated plus-maze test, chronic, but not acute, Erythrina velutina (100mg/kg) administration increased the percentage of open arm entries, an effect also seen in both acute and chronic treatments with chlordiazepoxide (7.5mg/kg). In the forced swim test, only imipramine (25mg/kg) decreased immobility time. Impairment of habituation was seen only with acute imipramine administration and with the lowest doses of Erythrina velutina extract tested in acute (10mg/kg) and chronic (50mg/kg) administrations. CONCLUSIONS These results suggest that chronic administration of the hydroalcoholic extract of the stem bark of Erythrina velutina exerts an anxiolytic-like effect on mice, and it could serve as a new approach for the treatment anxiety, although it may have an amnesic effect at low doses.
Collapse
Affiliation(s)
- I M Raupp
- Laboratório de Fisiologia e Farmacologia do Sistema Nervoso Central, Departamento de Farmacologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Centro Politécnico, PO Box 19031, 81531-990, Curitiba, PR, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Amin KM, Rahman DEA, Al-Eryani YA. Synthesis and preliminary evaluation of some substituted coumarins as anticonvulsant agents. Bioorg Med Chem 2008; 16:5377-88. [DOI: 10.1016/j.bmc.2008.04.021] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2007] [Revised: 04/06/2008] [Accepted: 04/11/2008] [Indexed: 11/29/2022]
|