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Teixeira EH, Andrade AL, Pereira R, Farias LP, Monteiro GS, Marinho MM, Marinho ES, Santos HS, de Vasconcelos MA. Antimicrobial, Antibiofilm Activities and Synergic Effect of Triterpene 3β,6β,16β-trihydroxyilup-20(29)-ene Isolated from Combretum leprosum Leaves Against Staphylococcus Strains. Curr Microbiol 2023; 80:176. [PMID: 37029832 DOI: 10.1007/s00284-023-03284-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 03/23/2023] [Indexed: 04/09/2023]
Abstract
Antimicrobial resistance is a natural phenomenon and is becoming a huge global public health problem, since some microorganisms not respond to the treatment of several classes of antibiotics. The objective of the present study was to evaluate the antibacterial, antibiofilm, and synergistic effect of triterpene 3β,6β,16β-trihydroxyilup-20(29)-ene (CLF1) against Staphylococcus aureus and Staphylococcus epidermidis strains. Bacterial susceptibility to CLF1 was evaluated by minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) assay. In addition, the effect combined with antibiotics (ampicillin and tetracycline) was verified by the checkerboard method. The biofilms susceptibility was assessed by enumeration of colony-forming units (CFUs) and quantification of total biomass by crystal violet staining. The compound showed bacteriostatic and bactericidal activity against all Staphylococcal strains tested. The synergistic effect with ampicillin was observed only for S. epidermidis strains. Moreover, CLF1 significantly inhibited the biofilm formation and disrupted preformed biofilm of the all strains. Scanning electron microscopy (SEM) images showed changes in the cell morphology and structure of S. aureus ATCC 700698 biofilms (a methicillin-resistant S. aureus strain). Molecular docking simulations showed that CLF1 has a more favorable interaction energy than the antibiotic ampicillin on penicillin-binding protein (PBP) 2a of MRSA, coupled in different regions of the protein. Based on the results obtained, CLF1 proved to be a promising antimicrobial compound against Staphylococcus biofilms.
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Affiliation(s)
- Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, CE, Brazil.
| | - Alexandre Lopes Andrade
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Rafael Pereira
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Livia Pontes Farias
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Gabrieli Sobral Monteiro
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Marcia Machado Marinho
- Faculdade de Educação, Ciência e Letras de Iguatu, Universidade Estadual do Ceará, Iguatu, Ceará, Brazil
| | - Emmanuel Silva Marinho
- Faculdade de Filosofia Dom Aureliano Matos, Universidade Estadual do Ceará, Limoeiro do Norte, Ceará, Brazil
| | - Hélcio Silva Santos
- Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, Sobral, Ceará, Brazil
| | - Mayron Alves de Vasconcelos
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, CE, Brazil
- Universidade do Estado de Minas Gerais, Unidade de Divinopolis, Divinopolis, MG, 35501-179, Brazil
- Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, Mossoró, RN, 59610-210, Brazil
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Cytotoxicity, Antimicrobial, Antioxidant, Anthelmintic, and Anti-Inflammatory Activities and FTIR Analysis of Combretum nioroense Stem Bark. J CHEM-NY 2023. [DOI: 10.1155/2023/5424386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023] Open
Abstract
Combretum nioroense is widely used in the folkloric treatment of a variety of bacterial and helminthic infections. The decoction of its leaves is traditionally fed to newborn babies in some rural parts of Ghana. The study focused on identifying the prime components of petroleum ether and ethanolic extracts of the stem bark using standard phytochemical screening protocols and chromatographic and spectroscopic techniques. The activities (cytotoxicity, antimicrobial, antioxidant, anthelmintic, and anti-inflammatory) of the extracts of C. nioroense were also investigated. Preliminary phytochemical analysis of the extracts revealed the presence of glycosides, saponins, phenols, coumarins, alkaloids, flavonoids, tannins, steroids, phytosterols, flavanols, terpenoids, and cardiac glycosides. The action of the extracts of C. nioroense on Milsonia ghanensis worms was concentration-dependent, with the least concentration (0.75 mg/mL) paralyzing and killing M. ghanensis after the maximal exposure time. The IC50 values for petroleum ether and ethanol extracts in the DPPH assay were >100.0 and 27.940 ± 1.005 μg/mL and those of the H2O2 assay were 400.900 ± 3.400 and 322.500 ± 1.005 μg/mL, respectively. The total antioxidant capacities (TACs) for petroleum ether and ethanol extracts were 47.197 ± 0.533 and 57.968 ± 0.560 gAAE/100 g, respectively. The IC50 value for ethanol extract in the cytotoxicity studies was 115.4 ± 1.332 μg/mL. The MICs of the extracts against the test organisms were within the range of 0.0122–25.0 mg/mL. The extracts (petroleum ether and ethanol) showed a concentration-dependent increase in anti-inflammatory activity with IC50 values of 31.254 ± 0.359 and 24.402 ± 0.569 μg/mL, respectively. Chromatographic separations of the ethanol extract gave three fractions. FTIR analysis of the extracts and purified fractions revealed the presence of functional groups, confirming the presence of the phytochemicals identified in the screening test. The results indicate that both extracts of C. nioroense exhibit cytotoxicity, antimicrobial, antioxidant, anthelmintic, and anti-inflammatory activities, thereby proving the folkloric use to treat ailments caused by worms and microorganisms.
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Coutinho MR, Oliveira LS, Evaristo FFV, Marinho MM, Marinho EM, Teixeira EH, Teixeira AMR, Marinho ES, Santos HS. Pharmacological potential of the triterpene 3
β
,6
β
,16
β
‐trihidroxilup‐20 (29)‐ene isolated from
Combretum leprosum
: A literature review. Fundam Clin Pharmacol 2022; 36:486-493. [DOI: 10.1111/fcp.12753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 12/22/2021] [Accepted: 01/04/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Marnielle R. Coutinho
- Postgraduate Program in Biotechnology‐PPGB‐Renorbio State University of Ceará Fortaleza Ceará Brazil
| | - Larissa S. Oliveira
- Science and Technology, Graduate Program in Natural Sciences State University of Ceará Fortaleza Ceará Brazil
| | | | - Márcia M. Marinho
- Faculty of Education, Science and Letters of Iguatu State University of Ceará Iguatu Ceará Brazil
| | - Emanuelle M. Marinho
- Department of Analytical Chemistry and Physical Chemistry, science center Federal University of Ceará Fortaleza Ceará Brazil
| | - Edson H. Teixeira
- Integrated Laboratory of Biomolecules (LIBS), Department of Pathology and Legal Medicine Federal University of Ceará Fortaleza Ceará Brazil
| | - Alexandre Magno R. Teixeira
- Postgraduate Program in Biotechnology‐PPGB‐Renorbio State University of Ceará Fortaleza Ceará Brazil
- Science and Technology, Graduate Program in Natural Sciences State University of Ceará Fortaleza Ceará Brazil
- Department of Biological Chemistry Regional University of Cariri Crato Ceará Brazil
| | - Emmanuel S. Marinho
- Science and Technology, Graduate Program in Natural Sciences State University of Ceará Fortaleza Ceará Brazil
- Faculty of Philosophy Dom Aureliano Matos State University of Ceará Limoeiro do Norte Ceará Brazil
| | - Hélcio S. Santos
- Postgraduate Program in Biotechnology‐PPGB‐Renorbio State University of Ceará Fortaleza Ceará Brazil
- Science and Technology, Graduate Program in Natural Sciences State University of Ceará Fortaleza Ceará Brazil
- Center for Exact Sciences and Technology State University of Vale do Acaraú Sobral Ceará Brazil
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ALIXANDRE TAMNATAF, SOUSA RENATOP, GOMES BRUNOS, SILVA ARÊTHAH, SOUSA NETO BENEDITOP, SOUSA ELCILENEA, LIMA MARLUCEP, LOPES EVERTONM, PIAUILINO CELYANEA, NASCIMENTO REJANET, REIS FILHO ANTÔNIOC, ALMEIDA FERNANDAR, OLIVEIRA FRANCISCOA, CHAVES MARIANAH, COSTA LUCIANAM, ALVES MICHELMMORAES, COSTA AMILTONP. Samanea tubulosa Benth. (Fabaceae): Antinociceptive effect on acute pain in mice: K+ATP channel and opioid activity. AN ACAD BRAS CIENC 2022. [DOI: 10.1590/0001-3765202220210175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Izuegbuna O. Leukemia Chemoprevention and Therapeutic Potentials: Selected Medicinal Plants with Anti-Leukemic Activities. Nutr Cancer 2021; 74:437-449. [PMID: 34060380 DOI: 10.1080/01635581.2021.1924209] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Haematological malignancies account for more than one million cases of all cancers yearly worldwide. While survival has improved due to newer drugs used in their management, relapsed/refractory disease remains a challenge, and treatment modalities come with side effects and morbidities. The management of leukaemias with medicinal plants and their natural products remain a viable option. Numerous studies have shown the potentials and viability of medicinal plants and their natural products as good options against leukaemias. However many of these natural products face peculiar challenges such as low systemic bioavailability, hydrophobic nature and displayed toxicities when given at different pharmacologic doses, while the medicinal plants face the threat of extinction. The development of semi-synthetic analogues and better regulations have helped overcome some of these challenges. This review briefly analyzes four medicinal plants and their different natural products that are used traditionally in the management of cancers, and have been scientifically proven to have some form of activity against leukemia. These plants include Tanacetum parthenium, Garcinia hanburyi, Scutellaria baicalensis, and Combretum caffrum. This review discusses these medicinal plants and their natural products under the following headings: ethnobotany, phytochemistry, mechanism of action, antileukaemic activity and toxicity.
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Sousa HG, Uchôa VT, Cavalcanti SMG, de Almeida PM, Chaves MH, Lima Neto JDS, Nunes PHM, da Costa Júnior JS, Rai M, Do Carmo IS, de Sousa EA. Phytochemical screening, phenolic and flavonoid contents, antioxidant and cytogenotoxicity activities of Combretum leprosum Mart. (Combretaceae). JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2021; 84:399-417. [PMID: 33494643 DOI: 10.1080/15287394.2021.1875345] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Combretum leprosum Mart. (Combretaceae), a shrub popularly known as mofumbo, is used in folk medicine for treatment of uterine bleeding, pertussis, gastric pain, and as a sedative. The aim of this study was to (1) determine the phytochemical profile,(2) identify chemical constituents and (3) examine antioxidant and cytogenotoxic activity of ethanolic extracts and fractions of stem bark and leaves. The plant material (leaf and stem bark) was submitted to extraction with ethanol, followed by partition using hexane, chloroform, and ethyl acetate. It was possible to identify and quantify the epicatechin in the ethanolic stem bark extract (0.065 mg/g extract) and rutin in the leaf extract (3.33 mg/g extract). Based upon in vitro tests a significant relationship was noted between findings from antioxidant tests and levels of total phenolic and flavonoid. Comparing all samples (extracts and fractions), the ethyl acetate fractions of stem bark (411.40 ± 15.38 GAE/g) and leaves (225.49 ± 9.47 GAE/g) exhibited higher phenolic content, whereas hexanic fraction of stem bark (124.28 ± 56 mg/g sample) and ethyl acetate fraction of leaves (238.91 ± 1.73 mg/g sample) demonstrated a higher content of flavonoids. Among the antioxidant tests, the intermediate fraction of stem bark (28.5 ± 0.60 μg/ml) and ethyl acetate fraction of leaves (40 ± 0.56 μg/ml) displayed a higher % inhibition of free radical DPPH activity, whereas intermediate fraction of stem bark (27.5 ± 0.9 μg/ml) and hydromethanol fraction of leaves (81 ± 1.4 μg/ml) demonstrated inhibition of the free radical ABTS. In biological tests (Allium cepa and micronucleus in peripheral blood), data showed that none of the tested concentrations of ethanolic extracts of leaves and stem bark produced significant cytotoxicity, genotoxicity, and mutagenic activity.Abbreviations AA%: percentage of antioxidant activity; ABTS: 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid); CEUA: Ethics Committee in the Use of Animals; TLC: Thin Layer Chromatography; DNA: deoxyribonucleic acid; DPPH: 1,1-diphenyl-2-picrylhydrazyl; ROS: Reactive oxygen species; EEB: ethanol extract of the stem bark; HFB: Hexanic fraction of stem bark; IFB: Intermediate fraction of stem bark; CFB: Chloroform fraction of stem bark; EAFB: Ethyl acetate fraction of stem bark; HMFB: Hydromethanol fraction of the stem bark; EEL: Ethanol extract from leaves; HFL: Hexane fraction of leaves; CFL: Chloroform fraction of leaves; EAFL: Ethyl acetate fraction of leaves; HMFL: Hydromethanol fraction of leaves; GAE: Gallic Acid Equivalent; IC50: 50% inhibition concentration; HCOOH: Formic acid; HCl: hydrochloric acid; HPLC: High-performance liquid chromatography; MN: micronucleus; WHO: World Health Organization; UFLC: Ultra-Fast Liquid Chromatography; UESPI: State University of Piauí.
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Affiliation(s)
- Herbert Gonzaga Sousa
- Department of Chemistry, Natural Sciences Center, State University of Piauí, Teresina, Piauí, Brazil
| | - Valdiléia Teixeira Uchôa
- Department of Chemistry, Natural Sciences Center, State University of Piauí, Teresina, Piauí, Brazil
| | | | - Pedro Marcos de Almeida
- Health Sciences Center, Department of Genetics, State University of Piauí, Teresina, Piauí, Brazil
| | - Mariana Helena Chaves
- Department of Organic Chemistry, Federal University of Piauí, Teresina, Piauí, Brazil
| | | | | | | | - Mahendra Rai
- Department of Biotechnology, Sant Gadge Baba Amravati University Amravati, Maharashtra, India
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Silva-Filho CJ, Freitas PG, Oliveira FC, Barbosa FG, Oliveira MC, Eloy JO, Pessoa C, Mafezoli J. Nanoencapsulation of triterpene 3β,6β,16β-trihydroxylup-20(29)-ene from Combretum leprosum as strategy to improve its cytotoxicity against cancer cell lines. Bioorg Med Chem Lett 2020; 30:127469. [DOI: 10.1016/j.bmcl.2020.127469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 10/23/2022]
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8
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Silva FCO, de Menezes JESA, Ferreira MKA, da Silva AW, Holanda CLA, Dos Reis Lima J, Campos AR, Evaristo FFV, Teixeira EH, Magalhães FEA, Bandeira PN, Dos Santos HS. Antinociceptive activity of 3β-6β-16β-trihydroxylup-20 (29)-ene triterpene isolated from Combretum leprosum leaves in adult zebrafish (Danio rerio). Biochem Biophys Res Commun 2020; 533:362-367. [PMID: 32962857 DOI: 10.1016/j.bbrc.2020.07.107] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 07/22/2020] [Indexed: 01/08/2023]
Abstract
Drugs used to treat pain are associated with adverse effects, increasing the search for new drugs as an alternative treatment for pain. Therefore, we evaluated the antinociceptive behavior and possible neuromodulation mechanisms of triterpene 3β, 6β, 16β-trihydroxylup-20(29)-ene (CLF-1) isolated from Combretum leprosum leaves in zebrafish. Zebrafish (n = 6/group) were pretreated with CLF-1 (0.1 or 0.3 or 1.0 mg/mL; i.p.) and underwent nociception behavior tests. The antinociceptive effect of CFL-1 was tested for modulation by opioid (naloxone), nitrergic (L-NAME), nitric oxide and guanylate cyclase synthesis inhibitor (methylene blue), NMDA (Ketamine), TRPV1 (ruthenium red), TRPA1 (camphor), or ASIC (amiloride) antagonists. The corneal antinociceptive effect of CFL-1 was tested for modulation by TRPV1 (capsazepine). The effect of CFL-1 on zebrafish locomotor behavior was evaluated with the open field test. The acute toxicity study was conducted. CLF-1 reduced nociceptive behavior and corneal in zebrafish without mortalities and without altering the animals' locomotion. Thus, CFL-1 presenting pharmacological potential for the treatment of acute pain and corneal pain, and this effect is modulated by the opioids, nitrergic system, NMDA receptors and TRP and ASIC channels.
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Affiliation(s)
- Francisca Crislândia Oliveira Silva
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Jane Eire Silva Alencar de Menezes
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Maria Kueirislene Amâncio Ferreira
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Antonio Wlisses da Silva
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Carlos Leone Alves Holanda
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Joyce Dos Reis Lima
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Adriana Rolim Campos
- Universidade de Fortaleza, Núcleo de Biologia Experimental (NUBEX), Fortaleza, Ceará, Brazil
| | | | - Edson Holanda Teixeira
- Universidade Federal do Ceará, Departamento de Patologia e Medicina Legal, Laboratório Integrado de Biomoléculas (LIBS), Fortaleza, Ceará, Brasil
| | - Francisco Ernani Alves Magalhães
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil; Universidade de Fortaleza, Núcleo de Biologia Experimental (NUBEX), Fortaleza, Ceará, Brazil; Universidade Estadual do Ceará, Departamento de Química, Laboratório de Bioprospecção de Produtos Naturais e Biotecnologia, Tauá, Ceará, Brazil
| | - Paulo Nogueira Bandeira
- Universidade Estadual Vale do Acaraú, Curso de Química, Sobral, Ceará, Brazil; Universidade Regional do Cariri, Departamento de Química Biológica, Crato, Ceará, Brazil
| | - Hélcio Silva Dos Santos
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil; Universidade Estadual Vale do Acaraú, Curso de Química, Sobral, Ceará, Brazil; Universidade Regional do Cariri, Departamento de Química Biológica, Crato, Ceará, Brazil.
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Fyhrquist P, Salih EYA, Helenius S, Laakso I, Julkunen-Tiitto R. HPLC-DAD and UHPLC/QTOF-MS Analysis of Polyphenols in Extracts of the African Species Combretum padoides, C. zeyheri and C. psidioides Related to Their Antimycobacterial Activity. Antibiotics (Basel) 2020; 9:E459. [PMID: 32751268 PMCID: PMC7460068 DOI: 10.3390/antibiotics9080459] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/13/2020] [Accepted: 07/25/2020] [Indexed: 12/26/2022] Open
Abstract
Combretum padoides Engl. & Diels, C. psidioides Welv. and C. zeyheri Sond. are used forthe treatment of infections and tuberculosis related symptoms in African traditional medicine. In orderto verify these uses, extracts were screened for their growth inhibitory eects against M. smegmatisATCC 14468. Ultra-high pressure liquid chromatography coupled to quadrupole time-of-flightmass spectrometry (UHPLC/QTOF-MS) and GC-MS were used to investigate the polyphenoliccomposition in the active extracts. The lowest minimum inhibitory concentration (MIC), 625 g/mL,was shown by a methanol extract of the stem bark of C. psidioides. A butanol extract of C. psidioidesgave large inhibition zone diameters (IZD 21 mm) and inhibited 84% of the mycobacterial growthat 312 g/mL. Combretastatin B-2 and dihydrostilbene derivatives were present in the methanolextract of C. psidioides, whereas the butanol extract of this species contained punicalagin, corilagin,and sanguiin H-4. Methanol and butanol extracts of the stem bark of C. padoides gave large inhibitionzone diameters (IZD 26.5 mm) and MIC values of 1250 and 2500 g/mL, respectively. C. padoidescontained an ellagitannin with a mass identical to punicalagin ([M-H]- 1083.0587) and a corilaginlike derivative ([M-H]- 633.0750) as well as ellagic acid arabinoside and methyl ellagic acid xyloside.A butanol extract of the roots of C. zeyheri showed mild antimycobacterial activity and containeda gallotannin at m/z [M-H]- 647.0894 as the main compound along with punicalagin and threeunknown ellagitannins at m/z [M-H]- 763.0788, 765.0566, and 817.4212. Our results indicate thatthe studied species of Combretum contain phenolic and polyphenolic compounds with possiblepotential as leads for antimycobacterial drugs or as adjuvants for conventional anti-TB drugs.
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Affiliation(s)
- Pia Fyhrquist
- Faculty of Pharmacy, Division of Pharmaceutical Biosciences, Viikki Biocenter, P.O. Box 56, FIN-00014, University of Helsinki, 00100 Helsinki, Finland; (E.Y.A.S.); (S.H.); (I.L.)
| | - Enass Y. A. Salih
- Faculty of Pharmacy, Division of Pharmaceutical Biosciences, Viikki Biocenter, P.O. Box 56, FIN-00014, University of Helsinki, 00100 Helsinki, Finland; (E.Y.A.S.); (S.H.); (I.L.)
- Department of Forest Products and Industries, Shambat Campus, SUD-13314, University of Khartoum, Khartoum 11111, Sudan
| | - Satu Helenius
- Faculty of Pharmacy, Division of Pharmaceutical Biosciences, Viikki Biocenter, P.O. Box 56, FIN-00014, University of Helsinki, 00100 Helsinki, Finland; (E.Y.A.S.); (S.H.); (I.L.)
| | - Into Laakso
- Faculty of Pharmacy, Division of Pharmaceutical Biosciences, Viikki Biocenter, P.O. Box 56, FIN-00014, University of Helsinki, 00100 Helsinki, Finland; (E.Y.A.S.); (S.H.); (I.L.)
| | - Riitta Julkunen-Tiitto
- Faculty of Science and Forestry, Department of Environmental and Biological Sciences, University of Eastern Finland, 80101 Joensuu, Finland;
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Dal Forno AH, Câmara D, Parise B, Rodrigues CF, Soares JJ, Wagner R, Ribeiro SR, Folmer V, Puntel R, Haas SE, Farias FM, Denardin EL, Denardin CC, Avila DS. Antioxidant and lipid lowering effects of dried fruits oil extract of Pterodon emarginatusin Caenorhabditis elegans. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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11
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Cruz BG, Rodrigues Teixeira AM, Silva PTD, Vasconcelos Evaristo FF, de Vaconcelos MA, Holanda Teixeira E, Dos Santos HS, Bandeira PN, Sena-Júnior DMD, Barreto VP, Coutinho HDM. Antimicrobial activity of the lupane triterpene 3 β,6 β,16 β-trihydroxylup-20(29)-ene isolated from Combretum leprosum Mart. J Med Microbiol 2019; 68:1438-1444. [PMID: 31385784 DOI: 10.1099/jmm.0.001056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction. Combretum leprosum (Combretaceae) is commonly found in the Northeast Region of Brazil and is known for several bioactivities, including antimicrobial ones. Because of increasing bacterial antibiotic resistance, natural products from several plants have been studied as putative adjuvants to antibiotic activity, including products from C. leprosum. Aims. This study was carried out to investigate the structural properties, bactericidal activity and antibiotic modifying action of the lupane triterpene 3β,6β,16β-trihydroxylup-20(29)-ene (CLF1) isolated from C. leprosum Mart. leaves.Methods. The CLF1 was evaluated by the Fourier transform infrared spectroscopy method and the antibacterial activity of this compound was assayed alone and in association with antibiotics by microdilution assay.Results. Spectroscopic studies confirmed the molecular structure of the CLF1 and permitted assignment of the main infrared bands of this natural product. Microbiological assays showed that this lupane triterpene possesses antibacterial action with clinical relevance against Staphylococcus aureus. The CLF1 triterpene increased antimicrobial activity against the multidrug-resistant Escherichia coli 06 strain when associated with the antibiotics gentamicin and amikacin. Synergistic effects were observed against the S. aureus 10 strain in the presence of the CLF1 triterpene with the antibiotic gentamicin.Conclusion. In conclusion, the CLF1 compound may be useful in the development of antibacterial drugs against the aforementioned bacteria.
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Affiliation(s)
| | | | - Priscila Teixeira da Silva
- Science and Technology Centre - Course of Chemistry, State University Vale do Acaraú, Sobral, CE, Brazil
| | | | - Mayron Alves de Vaconcelos
- Department of Biological Sciences, State University of Rio Grande do Norte, Mossoró, RN, Brazil.,Department of Pathology and Forensic Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Edson Holanda Teixeira
- Department of Pathology and Forensic Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Hélcio Silva Dos Santos
- Science and Technology Centre - Course of Chemistry, State University Vale do Acaraú, Sobral, CE, Brazil
| | - Paulo Nogueira Bandeira
- Science and Technology Centre - Course of Chemistry, State University Vale do Acaraú, Sobral, CE, Brazil
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Antinociceptive effect of flavonol and a few structurally related dimethoxy flavonols in mice. Inflammopharmacology 2019; 27:1155-1167. [PMID: 30850920 DOI: 10.1007/s10787-019-00579-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 02/26/2019] [Indexed: 10/27/2022]
Abstract
Previous reports suggest flavonoids as potent analgesic compounds. Based on these observations, the present study investigated the antinociceptive action of flavonol, 3', 4'-dimethoxy flavonol, 6, 3'-dimethoxy flavonol, 7, 2'-dimethoxy flavonol, and 7, 3'-dimethoxy flavonol and the possible mechanisms involved in these effects. The antinociceptive effect of the investigated compounds in doses of 25, 50, 100, and 200 mg/kg was evaluated in male Swiss albino mice using the acetic acid test, formalin-induced nociception, and hot water tail immersion test. The role of opioid, tryptaminergic, adrenergic, dopaminergic, GABAergic, and K+ATP channels in producing the antinociceptive effect was also studied using appropriate interacting agents. Treatment with flavonol and dimethoxy flavonols resulted in a significant reduction in the number of abdominal constrictions in the acetic acid test, a significant inhibition of the paw-licking/biting response time in both the phases of formalin nociception and also a significant increase in mean reaction time in the hot water tail immersion test. These observations revealed the antinociceptive effect of dimethoxy flavonols. The role of opioid, serotonergic (5HT3), and dopaminergic system was identified in the antinociceptive effect of flavonol and all dimethoxy derivatives investigated. In addition, the role of GABAergic, K+ATP channel, and α-2 adrenergic mechanisms were also observed in the antinociceptive action of some of the investigated compounds. The present study identified the antinociceptive effect of flavonol and dimethoxy flavonols in mice acting through different neuronal pathways.
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Cavalcanti PMS, Martins MDOCC, Nunes PHM, Alves Filho FC, Silva JDP, Cavalcanti SMG. Antidiarrheal effect of extract from the bark of Combretum leprosum in mice. AN ACAD BRAS CIENC 2018; 91:e20170932. [PMID: 30569966 DOI: 10.1590/0001-3765201820170932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 05/07/2018] [Indexed: 11/21/2022] Open
Abstract
This study investigated the effects of the ethanolic extract from the bark of Combretum leprosum (ECL) on intestinal transit and castor-oil induced diarrhea in mice. The oral administration of ECL (750 and 1000 mg/kg) slowed intestinal transit (ID50 of 455 mg/kg). The ECL (250-1000 mg/kg) reduced castor-oil induced diarrhea, in a time- and dose-dependent manner (p < 0.05). To determine if antidiarrheal effect of ECL involves α2-adrenergic or opioid receptor activation, the mice were pretreated with antagonists of these receptors, yohimbine or naloxone respectively. None of these drugs inhibited the antidiarrheal effect of ECL. To test if antidiarrheal effect of ECL is due to an antisecretory action, we realized the enteropooling assay on rats. The ECL increased bowel content and did not inhibit intestinal fluid secretion increase induced by misoprostol (100 µg/kg, s.c.). To determine if antimotility effect of ECL is due to a reduction on gastric motility, we realized the organ bath assay in the rat fundus stomach. Isotonic recordings show that the carbachol /KCl - induced contraction was not reversed by the addition of ECL. In conclusion, our results suggest that ECL contains antidiarrheal compounds and these compounds could induce a reduction of intestinal tract motility.
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Affiliation(s)
- Paulo M S Cavalcanti
- Departamento de Bioquímica e Farmacologia (setor SG8), Centro de Ciências da Saúde, Universidade Federal do Piauí, Avenida Universitária, s/n, Ininga, 64049-550 Teresina, PI, Brazil
| | - Maria DO Carmo C Martins
- Departamento de Biofísica e Fisiologia (setor SG8), Centro de Ciências da Saúde, Universidade Federal do Piauí, Avenida Universitária, s/n, Ininga, 64049-550 Teresina, PI, Brazil
| | - Paulo H M Nunes
- Departamento de Biofísica e Fisiologia (setor SG8), Centro de Ciências da Saúde, Universidade Federal do Piauí, Avenida Universitária, s/n, Ininga, 64049-550 Teresina, PI, Brazil
| | - Francisco C Alves Filho
- Departamento de Biofísica e Fisiologia (setor SG8), Centro de Ciências da Saúde, Universidade Federal do Piauí, Avenida Universitária, s/n, Ininga, 64049-550 Teresina, PI, Brazil
| | - Janyerson D P Silva
- Departamento de Biofísica e Fisiologia (setor SG8), Centro de Ciências da Saúde, Universidade Federal do Piauí, Avenida Universitária, s/n, Ininga, 64049-550 Teresina, PI, Brazil
| | - Suzana M G Cavalcanti
- Coordenação de Fisioterapia, Centro de Ciências da Saúde, Universidade Estadual do Piauí, Rua Olavo Bilac, 2335, Centro (Sul), 64001-280 Teresina, PI, Brazil
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Arantes LP, Machado ML, Zamberlan DC, da Silveira TL, da Silva TC, da Cruz IBM, Ribeiro EE, Aschner M, Soares FAA. Mechanisms involved in anti-aging effects of guarana (Paullinia cupana) in Caenorhabditis elegans. ACTA ACUST UNITED AC 2018; 51:e7552. [PMID: 29972429 PMCID: PMC6040867 DOI: 10.1590/1414-431x20187552] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 05/15/2018] [Indexed: 11/23/2022]
Abstract
Guarana (Paullinia cupana) is habitually ingested by people in
the Amazon region and is a key ingredient in various energy drinks consumed
worldwide. Extension in longevity and low prevalence of chronic age-related
diseases have been associated to habitual intake of guarana. Anti-aging
potential of guarana was also demonstrated in Caenorhabditis
elegans; however, the mechanisms involved in its effects are not
clear. Herein, we investigated the putative pathways that regulate the effects
of guarana ethanolic extract (GEE) on lifespan using C.
elegans. The major known longevity pathways were analyzed through
mutant worms and RT-qPCR assay (DAF-2, DAF-16, SKN-1, SIR-2.1, HSF-1). The
possible involvement of purinergic signaling was also investigated. This study
demonstrated that GEE acts through antioxidant activity, DAF-16, HSF-1, and
SKN-1 pathways, and human adenosine receptor ortholog (ADOR-1) to extend
lifespan. GEE also downregulated skn-1,
daf-16, sir-2.1 and hsp-16.2
in 9-day-old C. elegans, which might reflect less need to
activate these protective genes due to direct antioxidant effects. Our results
contribute to the comprehension of guarana effects in vivo,
which might be helpful to prevent or treat aging-associated disorders, and also
suggest purinergic signaling as a plausible therapeutic target for longevity
studies.
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Affiliation(s)
- L P Arantes
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - M L Machado
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - D C Zamberlan
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - T L da Silveira
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - T C da Silva
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - I B M da Cruz
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - E E Ribeiro
- Universidade Aberta da Terceira Idade, Universidade do Estado do Amazonas, Manaus, AM, Brasil
| | - M Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - F A A Soares
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
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Bianchini MC, Galvão DO, Tamborena T, Alves CO, Puntel RL. Mentha pulegium crude extracts induce thiol oxidation and potentiate hemolysis when associated to t-butyl hydroperoxide in human's erythrocytes. AN ACAD BRAS CIENC 2017; 89:2901-2909. [PMID: 29236859 DOI: 10.1590/0001-3765201720170446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 09/01/2017] [Indexed: 11/22/2022] Open
Abstract
Mentha pulegium (Lamiaceae) tea has been used as a traditional medicine; however, the modulatory effect of M. pulegium extracts on damage to human erythrocytes associated to t-butyl hydroperoxide (t-BHP) exposure remains to be investigated. Accordingly, we perform this study in order to test the hypothesis that aqueous and ethanolic extracts of M. pulegium could modulate the hemolysis associated to t-BHP exposure, non-protein thiol (NPSH) oxidation and lipid peroxidation (measured as thiobarbituric acid reactive substances - TBARS) in human erythrocytes. Samples were co-incubated with t-BHP (4 mmol/L) and/or aqueous or ethanolic extracts (10-1000 mg/mL) during 120 min to further analysis. We found that both extracts, when associated to t-BHP, potentiate NPSH oxidation and hemolysis. Moreover, both extracts significantly prevents against t-BHP-induced TBARS production. A significant correlation among hemolysis and NPSH levels was found. Taking together, our data points that the association of M. pulegium extracts with t-BHP culminates in toxic effect to exposed erythrocytes, besides its protective effect against t-BHP-induced TBARS production. So, we infer that the use of this extract may exert negative effect during painful crisis in sickle cell anemia. However, more studies are still necessary to better investigate/understand the mechanism(s) involved in the toxic effect resultant from this association.
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Affiliation(s)
- Matheus C Bianchini
- Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, Uruguaiana, 97500-970 RS, Brazil
| | - Dennyura O Galvão
- Universidade Regional do Cariri, Rua Cel. Antonio Luiz, s/n, Campus do Pimenta, 63105-000 Crato, CE, Brazil
| | - Tatiana Tamborena
- Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, Uruguaiana, 97500-970 RS, Brazil
| | - Claudia O Alves
- Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, Uruguaiana, 97500-970 RS, Brazil
| | - Robson L Puntel
- Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, Uruguaiana, 97500-970 RS, Brazil
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Antibacterial effect on mature biofilms of oral streptococci and antioxidant activity of 3β,6β,16β-trihydroxylup-20(29)-ene from Combretum leprosum. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2022-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Horinouchi CDDS, Mendes DAGB, Nolte S, Brito PSD, Soley BDS, Favero GM, Facundo VA, Santos ARS, Cabrini DDA, Otuki MF. Anti-proliferative and anti-inflammatory effects of 3β,6β,16β-Trihydroxylup-20(29)-ene on cutaneous inflammation. JOURNAL OF ETHNOPHARMACOLOGY 2017; 195:298-308. [PMID: 27880883 DOI: 10.1016/j.jep.2016.11.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 11/12/2016] [Accepted: 11/19/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE 3β,6β,16β-Trihydroxylup-20(29)-ene (TTHL) is a triterpene isolated from the flowers of Combretum leprosum, a plant used in folk medicine in the north of Brazil for the treatment of skin disorders. AIM OF THE STUDY In the present study, TTHL was evaluated as a potential topical anti-inflammatory and anti-proliferative agent through in vivo and in vitro models. MATERIAL AND METHODS Anti-inflammmatory and anti-proliferative effects of TTHL were assessed using Swiss mice in acute and chronic models of skin inflammation induced by 12-O-tetradecanoylphorbol-acetate (TPA) application. Anti-proliferative activity was proved through in vitro experiments with the HaCaT human keratinocyte cell line. RESULTS Treatment with TTHL inhibited inflammatory parameters such as oedema formation and cellular infiltration in acute and chronic models. In the chronic model, TTHL also inhibited epidermal hyperproliferation, as evidenced by reduction of epidermis thickness and proliferating cell nuclear antigen expression. The anti-proliferative effect was confirmed by the capability of TTHL in reducing the proliferation and inducing cell apoptosis of HaCaT cells. Suggesting a mechanism of action, TTHL showed activation of corticosteroid receptors, but without the induction of corticosteroid-related cutaneous side effects. CONCLUSION Our results demonstrate consistent anti-inflammatory and anti-proliferative activity and assign TTHL as a valuable tool in the development of a new treatment for skin inflammatory and proliferative diseases, such as psoriasis.
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Affiliation(s)
| | | | - Stefanie Nolte
- Department of Pharmaceutical Sciences, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748 (Room - M47), CEP 84030-900 Ponta Grossa, Paraná, Brazil
| | - Priscilla Salles de Brito
- Department of Pharmaceutical Sciences, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748 (Room - M47), CEP 84030-900 Ponta Grossa, Paraná, Brazil
| | - Bruna da Silva Soley
- Department of Pharmacology, Universidade Federal do Paraná, PO Box 19031, CEP 81530-900 Curitiba, Paraná, Brazil
| | - Giovani Marino Favero
- Department of General Biology, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748 CEP 84030-900 Ponta Grossa, Paraná, Brazil
| | - Valdir Alves Facundo
- Department of Chemistry, Universidade Federal de Rondônia, CEP 6801-974 Porto Velho, RO, Brazil
| | - Adair Roberto Soares Santos
- Department of Physiological Science, Universidade Federal de Santa Catarina, CEP 88040-900 Florianópolis, SC, Brazil
| | - Daniela de Almeida Cabrini
- Department of Pharmacology, Universidade Federal do Paraná, PO Box 19031, CEP 81530-900 Curitiba, Paraná, Brazil
| | - Michel Fleith Otuki
- Department of Pharmacology, Universidade Federal do Paraná, PO Box 19031, CEP 81530-900 Curitiba, Paraná, Brazil.
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Structural Aspects of Antioxidant and Genotoxic Activities of Two Flavonoids Obtained from Ethanolic Extract of Combretum leprosum. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:9849134. [PMID: 27478483 PMCID: PMC4949345 DOI: 10.1155/2016/9849134] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 04/27/2016] [Indexed: 11/17/2022]
Abstract
Combretum leprosum Mart., a member of the Combretaceae family, is a traditionally used Brazilian medicinal plant, although no evidence in the literature substantiates its antioxidant action and the safety of its use. We evaluated the antioxidant properties of the ethanolic extract (EE) from flowers of C. leprosum and its isolated products 5,3′-dihydroxy-3,7,4′-trimethoxyflavone (FCL2) and 5,3′,4′-trihydroxy-3,7-dimethoxyflavone (FCL5) in Saccharomyces cerevisiae strains proficient and deficient in antioxidant defenses. Their mutagenic activity was also assayed in S. cerevisiae, whereas cytotoxic and genotoxic properties were evaluated by MTT and Comet Assays, respectively, in V79 cells. We show that the EE, FCL2, and FCL5 have a significant protective effect against H2O2. FCL2 showed a better antioxidant action, which can be related to the activation of the 3′-OH in the presence of a methoxyl group at 4′ position in the B-ring of the molecule, while flavonoids did not induce mutagenesis in yeast, and the EE was mutagenic at high concentrations. The toxicity of these compounds in V79 cells increases from FCL2 = FCL5 < EE; although not cytotoxic, FCL5 induced an increase in DNA damage. The antioxidant effect, along with the lower toxicity and the absence of genotoxicity, suggests that FCL2 could be suitable for pharmacological use.
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Moraes LS, Rohor BZ, Areal LB, Pereira EV, Santos AMC, Facundo VA, Santos ARS, Pires RGW, Martins-Silva C. Medicinal plant Combretum leprosum mart ameliorates motor, biochemical and molecular alterations in a Parkinson's disease model induced by MPTP. JOURNAL OF ETHNOPHARMACOLOGY 2016; 185:68-76. [PMID: 26994817 DOI: 10.1016/j.jep.2016.03.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 03/01/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Combretum leprosum is a popular medicinal plant distributed in north and northeastern regions of Brazil. Many different parts of this plant are used in traditional medicine to treat several inflammatory diseases. Parkinson's disease (PD) is a disorder associated with inflammatory toxic factors and the treatments available provide merely a delay of the neurodegeneration. AIM OF THE STUDY We investigated the potential neuroprotective properties of the C. leprosum ethanolic extract (C.l.EE) in a murine model of PD using the toxin 1-methyl-4 phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP). MATERIALS AND METHODS The mice were split into four groups: V/S (vehicle/saline), E/S (extract/saline), V/M (vehicle/MPTP) and E/M (extract/ MPTP). Mice received MPTP (30mg/kg, i.p.) or vehicle (10ml/kg, i.p.) once a day for 5 consecutive days and vehicle (10ml/kg) or C.l.EE (100mg/kg) orally by intra-gastric gavage (i.g.) during a 14-d period, starting 3 days before the first MPTP injection. All groups were assessed for behavioural impairments (amphetamine-induced locomotor activity and muscle strength), dopamine content in striatum using high performance liquid chromatography (HPLC), tyrosine hydroxylase (TH) and dopamine transporter (DAT) gene expressions using qPCR. RESULTS Animals were injected with d-amphetamine (2mg/kg) and the activity was recorded. Amphetamine-induced hyperlocomotion was observed in all groups; however animals treated with MPTP showed exacerbated hyperlocomotion (approximately 3 fold increase compared to control groups). By contrast, mice treated with MPTP that received C.l.EE exhibited attenuation of the hyperlocomotion and did not differ from control groups. Muscle strength test pointed that C.l.EE strongly avoided muscular deficits caused by MPTP (approximately 2 fold increase compared to V/M group). Dopamine and its metabolites were measured in the striatum. The V/M group presented a dopamine reduction of 80%. On the other hand, the E/M group exhibited an increase in dopamine and its metabolites levels (approximately 3 fold increase compared to V/M group). Tyrosine hydroxylase (TH) and dopamine transporter (DAT) gene expressions were significantly reduced in the V/M group (60%). Conversely, C.l.EE treatment was able to increase the mRNA levels of those genes in the E/M group (approximately 2 fold for TH and DAT). CONCLUSIONS These data show, for the first time, that C. leprosum ethanolic extract prevented motor and molecular changes induced by MPTP, and partially reverted dopamine deficit. Thus, our results demonstrate that C.l.EE has potential for the treatment and prevention of PD.
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Affiliation(s)
- Livia S Moraes
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Bruna Z Rohor
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Lorena B Areal
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Evaldo V Pereira
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Biochemistry and Molecular Biophysics of Proteins, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Alexandre M C Santos
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Biochemistry and Molecular Biophysics of Proteins, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Valdir A Facundo
- Department of Medicine, Federal University of Rondônia-UNIR, Porto Velho, RO, Brazil
| | - Adair R S Santos
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, Trindade, Florianopolis 88040-900, SC, Brazil
| | - Rita G W Pires
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Cristina Martins-Silva
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil.
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Alves Filho FDC, Cavalcanti PMDS, Passaglia RDCAT, Ballejo G. Long-lasting endothelium-dependent relaxation of isolated arteries caused by an extract from the bark of Combretum leprosum. EINSTEIN-SAO PAULO 2016; 13:395-403. [PMID: 26466063 PMCID: PMC4943785 DOI: 10.1590/s1679-45082015ao3242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 06/24/2015] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To describe and to characterize the relaxing effect of an extract of the bark of Combretum leprosum on isolated arterial rings from different animals. METHODS Rings (3 to 4mm) from rabbit, rat, or porcine arteries rings were suspended in an organ bath (Krebs, 37°C, 95%O2/5%CO2) to record isometric contractions. After the stabilization period (2 to 3 hours) contractions were induced by the addition of phenylephrine (0.1 to 0.3µM) or U46619 (10 to 100nM), and Combretum leprosum extract was added on the plateau of the contractions. Experiments were performed to determine the potency, duration, reversibility, and to get insights on the potential mechanism involved in extract-induced relaxations. RESULTS In all rings tested, Combretumleprosum extract (1.5μg/mL) was able to cause relaxations, which were strictly endothelium-dependent. In rabbit or rat thoracic aorta rings, the relaxations were reversed by vitamin B12a or L-NG-nitroarginine. In porcine right coronary arteries and rabbit abdominal aorta, extract caused both L-NG-nitroarginine-sensitive and L-NG-nitroarginine-resistant relaxations. In rabbit thoracic aorta, the extract was relatively potent (EC50=0.20µg/mL) and caused relaxations; intriguingly the endothelium continued to produce relaxing factors for a long period after removing the extract. The magnitude of extract-induced relaxations was significantly reduced in the absence of extracellular Ca2+; in addition, the TRPs channels blocker ruthenium red (10µM) was able to revert extract-induced relaxations. Phytochemical analyses indicated that the extract was rich in polyphenol-like reacting substances. CONCLUSIONS Combretum leprosum extract contains bioactive compounds capable of promoting Ca2+-dependent stimulation of endothelial cells which results in a prolonged production of relaxing factors.
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Affiliation(s)
| | | | | | - Gustavo Ballejo
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
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22
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Machado MM, de Oliveira LFS, Zuravski L, de Souza RO, Fischer P, Duarte JA, Rocha MO, Güez CM, Boligon AA, Athayde ML. Evaluation of genotoxic and cytotoxic effects of hydroalcoholic extract of Euphorbia tirucalli (Euphorbiaceae) in cell cultures of human leukocytes. AN ACAD BRAS CIENC 2016; 88:17-28. [PMID: 26840004 DOI: 10.1590/0001-3765201520140076] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 07/13/2015] [Indexed: 11/21/2022] Open
Abstract
Euphorbia tirucalli (L.), commonly known as aveloz, has been indiscriminately used in popular medicine to treat various illnesses. However, some components can have devastating consequences. Injury to a cell's genetic material can cause mutations, cancer, and cell death. Our main goal in this work was to evaluate the genotoxic and cytotoxic effects of E. tirucalli extract on human leukocytes. For this purpose, we performed a phytochemical analysis to evaluate the plant's components. In the second step, we treated cultured human leukocytes with different concentrations of the dry extract of the plant and then evaluated the oxidative and genotoxic profiles of these leukocytes. We found that at 1% and 10% concentrations, the aveloz extract acted as a genotoxic agent that could damage DNA and increase oxidative damage. We conclude that despite its popular use, aveloz can act as a genotoxic agent, especially when it contains phorbol ester. Aveloz's indiscriminate use might actually promote tumors and therefore carry a considerable genetic risk for its users.
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Affiliation(s)
- Michel M Machado
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Luis F S de Oliveira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Luisa Zuravski
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Raul O de Souza
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Paula Fischer
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Jonathaline A Duarte
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Manoelly O Rocha
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Camila M Güez
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Aline A Boligon
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Margareth L Athayde
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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Lacouth-Silva F, Xavier CV, da S. Setúbal S, Pontes AS, Nery NM, de Castro OB, Fernandes CFC, Honda ER, Zanchi FB, Calderon LA, Stábeli RG, Soares AM, Silva-Jardim I, Facundo VA, Zuliani JP. The effect of 3β, 6β, 16β-trihydroxylup-20(29)-ene lupane compound isolated from Combretum leprosum Mart. on peripheral blood mononuclear cells. Altern Ther Health Med 2015; 15:420. [PMID: 26608735 PMCID: PMC4659216 DOI: 10.1186/s12906-015-0948-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 11/21/2015] [Indexed: 01/11/2023]
Abstract
BACKGROUND The Combretum leprosum Mart. plant, popularly known as mofumbo, is used in folk medicine for inflammation, pain and treatment of wounds. From this species, it is possible to isolate three triterpenes: (3β, 6β, 16β-trihydroxylup-20(29)-ene) called lupane, arjunolic acid and molic acid. In this study, through preclinical tests, the effect of lupane was evaluated on the cytotoxicity and on the ability to activate cellular function by the production of TNF-α, an inflammatory cytokine, and IL-10, an immuno regulatory cytokine was assessed. The effect of lupane on the enzymes topoisomerase I and II was also evaluated. METHODS For this reason, peripheral blood mononuclear cells (PBMCs) were obtained and cytotoxicity was assessed by the MTT method at three different times (1, 15 and 24 h), and different concentrations of lupane (0.3, 0.7, 1.5, 6, 3 and 12 μg/mL). The cell function was assessed by the production of TNF-α and IL-10 by PBMCs quantified by specific enzyme immunoassay (ELISA). The activity of topoisomerases was assayed by in vitro biological assays and in silico molecular docking. RESULTS The results obtained showed that lupane at concentrations below 1.5 μg/mL was not toxic to the cells. Moreover, lupane was not able to activate cellular functions and did not alter the production of IL-10 and TNF-α. Furthermore, the data showed that lupane has neither interfered in the action of topoisomerase I nor in the action of topoisomerase II. CONCLUSION Based on preclinical results obtained in this study, we highlight that the compound studied (lupane) has moderate cytotoxicity, does not induce the production of TNF-α and IL-10, and does not act on human topoisomerases. Based on the results of this study and taking into consideration the reports about the anti-inflammatory and leishmanicidal activity of 3β, 6β, 16β-trihydroxylup-20(29)-ene, we suggest that this compound may serve as a biotechnological tool for the treatment of leishmaniasis in the future.
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do Nascimento-Neto LG, Evaristo FFV, Alves MFDA, Albuquerque MRJR, dos Santos HS, Bandeira PN, Arruda FVS, Teixeira EH. Effect of the triterpene 3β, 6β, 16β-trihydroxylup-20(29)-ene isolated from the leaves of Combretum leprosum Mart. on cutaneous wounds in mice. JOURNAL OF ETHNOPHARMACOLOGY 2015; 171:116-120. [PMID: 26048429 DOI: 10.1016/j.jep.2015.05.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 05/07/2015] [Accepted: 05/24/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Combretum leprosum Mart. is a native species of the Caatinga, an important biome in the Brazilian semi-arid region. This species is commonly used in Brazil as a healing agent, as well as for the treatment of skin diseases. AIM OF THE STUDY This study investigated the healing potential of the ethanolic extract (EECL) and the bioactive triterpene 3β, 6β, 16β-trihydroxylup-20 (29)-ene (CLF-1) isolated from the leaves of C. leprosum. MATERIALS AND METHODS Skin wounds (1cm(2)) were created in the dorsal zone of mice with a scalpel blade number 15. The treatment consisted in a daily topical application of 100 μl of 150 mM NaCl, EECL and CLF-1 (at 10 μg/100 μl) for 12 days. The lesions were then macro and microscopically evaluated. RESULTS On postoperative day (POD) 2, the lesions treated with EECL and CLF-1 showed a moderate presence of vessels of the granulation tissue progressing in the dermis. The same effect was not observed in the control group. The treatment with EECL and CLF-1 stimulated angiogenesis, resulting in a rapid deposition of extracellular matrix (ECM). Moreover, the animals treated with EECL and CLF-1 showed smaller lesions on POD 7, primarily due to the contraction in the reticular dermis induced by organization of myofibroblasts, which was not observed in the group treated with NaCl. In addition, the lesions treated with EECL and CLF-1 showed ECM restructuration and presence of epithelium coating, which was not observed in the group treated with NaCl, in which the lesions showed no epithelial lining, suggesting delayed healing. CONCLUSION CLF-1 isolated from the leaves of C. leprosum may be considered to be an important molecule for the treatment of skin lesions. However, further investigations are necessary to establish its role in chronic lesions and to elucidate the mechanism of action involved in the cutaneous healing process. To the best of our knowledge, this is the first report describing the pro-healing activity of the ethanolic extract and the triterpene 3β, 6β, 16β-trihydroxylup-20(29)-ene isolated from leaves of C. leprosum.
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Affiliation(s)
- Luiz Gonzaga do Nascimento-Neto
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60441-750 Fortaleza, Ceará, Brazil
| | - Francisco Flávio Vasconcelos Evaristo
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60441-750 Fortaleza, Ceará, Brazil
| | - Mayara Freire de Alencar Alves
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60441-750 Fortaleza, Ceará, Brazil
| | | | - Helcio Silva dos Santos
- Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, CEP 62040-370 Sobral, Ceará, Brazil
| | - Paulo Nogueira Bandeira
- Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, CEP 62040-370 Sobral, Ceará, Brazil
| | - Francisco Vassiliepe Sousa Arruda
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60441-750 Fortaleza, Ceará, Brazil
| | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60441-750 Fortaleza, Ceará, Brazil.
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Teles CBG, Moreira-Dill LS, Silva ADA, Facundo VA, de Azevedo WF, da Silva LHP, Motta MCM, Stábeli RG, Silva-Jardim I. A lupane-triterpene isolated from Combretum leprosum Mart. fruit extracts that interferes with the intracellular development of Leishmania (L.) amazonensis in vitro. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:165. [PMID: 26048712 PMCID: PMC4457080 DOI: 10.1186/s12906-015-0681-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 05/20/2015] [Indexed: 01/11/2023]
Abstract
BACKGROUND 3beta,6beta,16beta-trihydroxylup-20(29)-ene is a lupane triterpene isolated from Combretum leprosum fruit. The lupane group has been extensively used in studies on anticancer effects; however, its possible activity against protozoa parasites is yet poorly known. The high toxicity of the compounds currently used in leishmaniasis chemotherapy stimulates the investigation of new molecules and drug targets for antileishmanial therapy. METHODS The activity of 3beta,6beta,16beta-trihydroxylup-20(29)-ene was evaluated against Leishmania (L.) amazonensis by determining the cytotoxicity of the compound on murine peritoneal macrophages, as well as its effects on parasite survival inside host cells. To evaluate the effect of this compound on intracellular amastigotes, cultures of infected macrophages were treated for 24, 48 and 96 h and the percentage of infected macrophages and the number of intracellular parasites was scored using light microscopy. RESULTS Lupane showed significant activity against the intracellular amastigotes of L. (L.) amazonensis. The treatment with 109 μM for 96 h reduced in 80 % the survival index of parasites in BALB/c peritoneal macrophages. At this concentration, the triterpene caused no cytotoxic effects against mouse peritoneal macrophages. Ultrastructural analyses of L. (L.) amazonensis intracellular amastigotes showed that lupane induced some morphological changes in parasites, such as cytosolic vacuolization, lipid body formation and mitochondrial swelling. Bioinformatic analyses through molecular docking suggest that this lupane has high-affinity binding with DNA topoisomerase. CONCLUSION Taken together, our results have showed that the lupane triterpene from C. leprosum interferes with L. (L.) amazonensis amastigote replication and survival inside vertebrate host cells and bioinformatics analyses strongly indicate that this molecule may be a potential inhibitor of topoisomerase IB. Moreover, this study opens major prospects for the development of novel chemotherapeutic agents with leishmanicidal activity.
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Affiliation(s)
- Carolina Bioni Garcia Teles
- Malaria and Leishmaniasis Bioassays platform, Oswaldo Cruz Foundation (Fiocruz Rondônia), Porto Velho, Rondônia, Brazil.
| | - Leandro Soares Moreira-Dill
- Center of Studies for Biomolecules Applied to Health (CEBio), Oswaldo Cruz Foundation (Fiocruz Rondônia), Porto Velho, Rondônia, Brazil.
| | - Alexandre de Almeida Silva
- Laboratory of Insect Bioecology, Universidade Federal de Rondônia (UNIR), Porto Velho, Rondônia, Brazil.
- Laboratory of Medical Entomology, Oswaldo Cruz Foundation (Fiocruz Rondônia), Porto Velho, Rondônia, Brazil.
| | - Valdir Alves Facundo
- Research Laboratory of Chemistry of Natural Products, Universidade Federal de Rondônia (UNIR), Porto Velho, Rondônia, Brazil.
| | - Walter F de Azevedo
- Structural Biochemistry Laboratory, PUC, Rio Grande do Sul, Porto Alegre, Brazil.
| | - Luiz Hildebrando Pereira da Silva
- Laboratory of Molecular Epidemiology, Research Institute for Tropical Diseases in Rondônia (IPEPATRO), Porto Velho, Rondônia, Brazil.
| | - Maria Cristina M Motta
- Laboratory of Cellular Ultrastructure Hertha Meyer, Institute of Biophysics, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
| | - Rodrigo Guerino Stábeli
- Center of Studies for Biomolecules Applied to Health (CEBio), Oswaldo Cruz Foundation (Fiocruz Rondônia), Porto Velho, Rondônia, Brazil.
| | - Izaltina Silva-Jardim
- Department of Biological Sciences, Universidade Estadual de Santa Cruz (UESC), Ilheús, Bahia, Brazil.
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Brüning CA, Gai BM, Soares SM, Martini F, Nogueira CW. Serotonergic systems are implicated in antinociceptive effect of m -trifluoromethyl diphenyl diselenide in the mouse glutamate test. Pharmacol Biochem Behav 2014; 125:15-20. [DOI: 10.1016/j.pbb.2014.08.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 08/01/2014] [Accepted: 08/09/2014] [Indexed: 12/25/2022]
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Viau CM, Moura DJ, Facundo VA, Saffi J. The natural triterpene 3β,6β,16β-trihydroxy-lup-20(29)-ene obtained from the flowers of Combretum leprosum induces apoptosis in MCF-7 breast cancer cells. Altern Ther Health Med 2014; 14:280. [PMID: 25086656 PMCID: PMC4129108 DOI: 10.1186/1472-6882-14-280] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 07/30/2014] [Indexed: 11/10/2022]
Abstract
Background The 3β, 6β, 16β-trihydroxylup-20(29)-ene (TTHL) is a pentacyclic triterpene obtained from the medicinal plant Combretum leprosum Mart. In folk medicine, this plant is popularly known as mofumbo, cipoaba or mufumbo, and is used to treat several diseases associated with inflammation and pain. Methods We investigated the antitumor efficacy of TTHL isolated from C. leprosum. The TTHL cytotoxic effect was investigated in MRC5, MCF-7, HepG2, T24, HCT116, HT29, and CACO-2 cells after 24, 48, 72 and 120 h of treatment. The mechanisms of cell death and DNA damage induction were investigated by flow cytometry and comet assay, respectively. Results The results indicated that TTHL induced a time- and concentration-dependent growth inhibition in all human cancer cell lines. The cytotoxicity was more pronounced in MCF-7 breast cancer cells, with an IC50 of 0.30 μg/mL at 120 h. We therefore evaluated the cell death mechanism induced by TTHL (IC20, IC50, and IC80) in MCF-7 cells at 24 h. We found that the treatment with IC50 and IC80 TTHL for 24 h induced apoptosis in 14% (IC50) and 52% (IC80) of MCF-7 cells. The apoptosis induced by TTHL was accompanied by increased levels of both cleaved caspase-9 and intracellular ROS. In order to further understand the biological mechanism of TTHL-induced cytotoxicity, we have also investigated its effect on different Saccharomyces cerevisiae yeast strains. The mutant strains sod1Δ, sod2Δ, and sod1Δsod2Δ, which are deficient in superoxide dismutase antioxidant defenses, were hypersensitive to TTHL, suggesting that its capacity to disturb cellular redox balance plays a role in drug toxicity. Moreover, TTHL induced mutagenicity in the yeast strain XV185-14c. Conclusions Taken together, the results suggest that TTHL forms covalent adducts with cellular macromolecules, potentially disrupting cellular function and triggering apoptosis. Electronic supplementary material The online version of this article (doi:10.1186/1472-6882-14-280) contains supplementary material, which is available to authorized users.
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Pandurangan K, Krishnappan V, Subramanian V, Subramanyan R. Antinociceptive effect of certain dimethoxy flavones in mice. Eur J Pharmacol 2014; 727:148-57. [PMID: 24486704 DOI: 10.1016/j.ejphar.2014.01.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Revised: 01/21/2014] [Accepted: 01/22/2014] [Indexed: 10/25/2022]
Abstract
The aim of the present study was to evaluate the antinociceptive action of certain dimethoxy flavones (DMF, (7,2׳-dimethoxy flavone, 7,3׳-dimethoxy flavone, 7,4׳-dimethoxy flavone and 7,8,-dimethoxy flavone) and the possible mechanisms involved. The antinociceptive effect of dimethoxy flavones was investigated in mice employing acetic acid-induced abdominal writhings, formalin-induced nociception and hot water tail immersion assay procedures. To identify the possible mechanisms involved in the antinociceptive action of these compounds, acetic acid-induced abdominal constriction assay alone was employed. Mice were pretreated with naloxone, yohimbine, ondansetron, haloperidol, bicuculline or glibenclamide before dimethoxy flavone treatment to identify the role of opioid, adrenergic, 5HT3-serotonergic, dopaminergic, gamma-amino butyric acid (GABA) receptor or potassium channels, respectively. The investigated dimethoxy flavones produced a significant reduction in the number of abdominal constrictions in acetic acid assay. A dose dependent decrease in paw-licking response time was evident in both the early and late phases of formalin induced nociception. A significant increase in reaction time was also evident after treatment with various dimethoxy flavones in hot water tail immersion assay. Pretreatment with naloxone, ondansetron or glibenclamide significantly attenuated the antinociceptive effect of all the four dimethoxy flavones. Yohimbine pretreatment attenuated the antinociceptive response of 7,3׳-dimethoxy flavone, 7,4׳-dimethoxy flavone and 7,8-dimethoxy flavone. Pretreatment with haloperidol potentiated the antinociceptive response of all the tested dimethoxy flavones. The antinociceptive effect of 7,2׳-dimethoxy flavone and 7,3׳-dimethoxy flavone was annulled by bicuculline pretreatment. The results of the present study reveal the antinociceptive effect of dimethoxy flavones involving multiple pathways.
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Affiliation(s)
- Kamalakannan Pandurangan
- Department of Pharmacology, Meenakshi Medical College & Research Institute, Meenakshi Academy of Higher Education and Research, Kanchipuram 631 552, Tamilnadu, India.
| | | | - Viswanathan Subramanian
- Department of Pharmacology, Meenakshi Medical College & Research Institute, Meenakshi Academy of Higher Education and Research, Kanchipuram 631 552, Tamilnadu, India.
| | - Ramaswamy Subramanyan
- Department of Pharmacology, Sri Lakshminarayana Institute of Medical Sciences, Pondicherry 605 502, India.
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Quintans JS, Costa EV, Tavares JF, Souza TT, Araújo SS, Estevam CS, Barison A, Cabral AG, Silva MS, Serafini MR, Quintans-Júnior LJ. Phytochemical study and antinociceptive effect of the hexanic extract of leaves from Combretum duarteanum and friedelin, a triterpene isolated from the hexanic extract, in orofacial nociceptive protocols. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2014. [DOI: 10.1590/0102-695x20142413347] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Piaulino CA, Carvalho FCB, Almeida BC, Chaves MH, Almeida FRC, Brito SMRC. The stem bark extracts of Cenostigma macrophyllum attenuates tactile allodynia in streptozotocin-induced diabetic rats. PHARMACEUTICAL BIOLOGY 2013; 51:1243-1248. [PMID: 23844576 DOI: 10.3109/13880209.2013.786096] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
UNLABELLED CONTEXT. Cenostigma macrophyllum Tul. var. acuminata Teles Freire (Leguminosae- Caesalpinioideae) is popularly known as "caneleiro". Previous studies showed antioxidant action and analgesic effects of the ethanol extract from the leaves of C. macrophyllum. The phytochemical evaluation of the stem bark revealed the presence of antinociceptive compounds. OBJECTIVE To investigate the antinociceptive actions of the ethanol extract and ethyl acetate fraction from C. macrophyllum stem bark in streptozotocin (STZ)-induced diabetic rats and the involvement of opioid and nitrergic mechanisms. MATERIALS AND METHODS STZ-rats received the ethanol extract (E.EtOH 200 and 300 mg/kg, p.o.) during 5 weeks. In acute experiments, untreated diabetic rats were treated with the ethyl acetate fraction (F.EtOAc 250 and 500 mg/kg, p.o.), on the 28th day of diabetes induction when the opioid and nitrergic mechanisms were investigated. The mechanical nociceptive threshold (MNT) was determined by application of von Frey filaments. RESULTS Data show that STZ-induced diabetic rats developed a significant tactile allodynia during 5 weeks. Diabetic rats that received E.EtOH (200 and 300 mg/kg) and F.EtOAc (250 and 500 mg/kg) had a pain threshold higher than those in the STZ-vehicle group. F.EtOAc effects were inhibited by pretreatment with naloxone and were not influenced by .-arginine. DISCUSSION AND CONCLUSION The results suggest that the ethanol extract and ethyl acetate fraction of C. macrophyllum presented antinociceptive activity. Thus, F.EtOAc may be exerting its effect by affecting the opioid system, but nitrergic mechanisms are not detectable. The observed activity may be due to its gallic acid, lupeol and bergenin content.
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Affiliation(s)
- Celyane Alves Piaulino
- Department of Biochemistry and Pharmacology, Federal University of Piaui, Teresina-PI, Brazil
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Woode E, Amoh-Barimah AK, Abotsi WKM, Ainooson GK, Owusu G. Analgesic effects of stem bark extracts of Trichilia monadelpha (Thonn.) JJ De Wilde. Indian J Pharmacol 2013; 44:765-73. [PMID: 23248409 PMCID: PMC3523507 DOI: 10.4103/0253-7613.103299] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 08/31/2012] [Accepted: 08/31/2012] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Various parts of Trichilia monadelpha (Thonn) JJ De Wilde (Fam. Meliaceae) are used in Ghanaian traditional medicine for the treatment of painful and inflammatory conditions. The present study examined the analgesic properties of the petroleum ether (PEE), ethyl acetate (EAE), and the hydro-ethanolic (HAE) extract of the stem bark of the plant in murine models. MATERIALS AND METHODS PEE, EAE, and HAE were assessed in chemical (acetic acid-induced abdominal writhing and formalin tests), thermal (hot plate test), and mechanical (Randall-Selitto paw pressure test) pain models. The possible mechanisms of the antinociceptive action were also examined with various antagonists in the formalin test. RESULTS HAE, EAE, and PEE, each at doses of 10-100 mg/kg orally, and the positive controls (morphine and diclofenac) elicited significant dose-dependent antinociceptive activity in the chemical (acetic acid abdominal writhing and formalin tests), thermal (hot plate test), and mechanical (Randall-Selitto paw pressure test) pain models in rodents. The antinociceptive effect of HAE was partly or wholly reversed by systemic administration of atropine, naloxone, and glibenclamide. The antinociceptive effects of EAE and PEE were inhibited by atropine. CONCLUSION The extracts HAE, EAE, and PEE caused dose-related antinociception in chemical, thermal, and mechanical models of pain in animals. The mechanism of action of HAE involves an interaction with muscarinic cholinergic, adenosinergic, opioidergic pathways, and ATP-sensitive K+ channels while that of EAE and PEE involve the muscarinic cholinergic system.
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Affiliation(s)
- Eric Woode
- Department of Pharmacology, College of Health Sciences, Kwame Nkrumah University of Science & Technology, Kumasi, Ghana
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Antinociceptive and anti-inflammatory effects of the monoterpene α,β-epoxy-carvone in mice. J Nat Med 2013; 67:743-9. [PMID: 23314829 DOI: 10.1007/s11418-012-0738-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 12/12/2012] [Indexed: 10/27/2022]
Abstract
α,β-Epoxy-carvone (EC) is a monoterpene found in the essential oils of many species of plants. It can also be obtained by organic synthesis. EC exerts a depressant effect on the central nervous system and is also known to have anticonvulsant, antimicrobial and antioxidant effects. The present study investigated the antinociceptive and anti-inflammatory effects of EC. Intraperitoneal administration of EC at doses of 100, 200 or 300 mg/kg promoted a significant antinociceptive effect, as shown in the acetic acid-induced abdominal writhing test. EC also provoked a reduction in formalin-induced nociception in the first (300 mg/kg) and second phases (200 and 300 mg/kg). In the hot-plate test, an increase in response latency was found at 30 min (at 100, 200 and 300 mg/kg), and at 60 and 120 min (at 300 mg/kg) following administration of EC, an effect that was reversed by naloxone. Intraperitoneal administration of EC (300 mg/kg) inhibited the increased vascular permeability provoked by acetic acid. These findings suggest that EC inhibited the acute inflammatory reaction, with a pronounced peripheral and central antinociceptive effect in mice that is probably associated with activation of the opioidergic system, which appears to play a role in the antinociceptive activity induced by EC.
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Horinouchi CDDS, Mendes DAGB, Soley BDS, Pietrovski EF, Facundo VA, Santos ARS, Cabrini DA, Otuki MF. Combretum leprosum Mart. (Combretaceae): potential as an antiproliferative and anti-inflammatory agent. JOURNAL OF ETHNOPHARMACOLOGY 2013; 145:311-319. [PMID: 23159472 DOI: 10.1016/j.jep.2012.10.064] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 10/26/2012] [Accepted: 10/28/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Combretum leprosum is a species that is popularly used in Brazil as a healing agent to treat skin problems and lesions. In this study we investigated the possible potential of this extract to treat inflammatory and hyperproliferative skin conditions. MATERIALS AND METHODS Classical models of skin inflammation such as TPA- and croton oil-induced mouse ear oedema were applied in order to verify the potential topical anti-inflammatory activity of the ethanolic extract from flowers of Combretum leprosum. RESULTS Topical application of ethanolic extract promoted a dose-dependent inhibition of phorbol ester-induced ear oedema, reduced myeloperoxidase activity and IL-6 tissue levels with inhibition comparable to dexamethasone (positive control). Histological and immunohistochemical analysis revealed that ethanolic extract also suppressed cell infiltration. Ethanolic extract altered inflammatory parameters on a chronic skin inflammation model induced by repeated applications of croton oil, decreasing ear oedema, epidermal hyperproliferation and cell infiltration. In addition, immunohistochemical analysis showed that the extract decreased PCNA expression on the epidermis. CONCLUSION Taken together, these results suggest that the extract from flowers of Combretum leprosum could be considered as a new potential tool for the treatment of several skin inflammatory diseases since it reversed the skin inflammatory and hyperproliferative process in a very significant manner. Further investigations are needed in order to verify the cellular mechanism and safety of Combretum leprosum extract.
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Affiliation(s)
- Cíntia Delai da Silva Horinouchi
- Laboratory of Inflammation, Department of Pharmacology, Universidade Federal do Paraná, PO Box 19031, CEP 81530-900 Curitiba, PR, Brazil
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Meghashri S, Gopal S. Biochemical characterization of radical scavenging polyphenols from Nyctanthes arbortristis. J Pharm Bioallied Sci 2012; 4:341-4. [PMID: 23248570 PMCID: PMC3523532 DOI: 10.4103/0975-7406.103277] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 04/10/2012] [Accepted: 05/20/2012] [Indexed: 11/30/2022] Open
Abstract
Context: Antioxidants are quenchers of free radical that are responsible for inducing oxidative stress generated via reactive oxygen species-induced degenerative diseases such as cancer, diabetes, and cardiovascular diseases etc. Plant and plant products are recognized as safe and potential health promoting and nutritive sources. Aims: To investigate the antioxidant potency of polyphenol extract (PE) of Nyctanthes arbortristis leaves and identification of the active constituent by HPLC. Materials and Methods: PE of N. arbortristis leaves was investigated for antioxidant activity employing various established in vitro systems, such as lipid peroxidation in liposome, DPPH and hydroxyl radical scavenging, reducing power assay, and iron ion chelation. Identification of active constituent in PE of N. arbortristis responsible for antioxidant activity by HPLC. Statistical analysis used: All experiments were carried out in triplicates. Data were shown as mean ± standard deviation (SD). SPSS 10.0.5 version for windows (SPSS software Inc., USA) computer program was used for statistical analysis. Results: Identification of active constituent in PE revealed gallic acid 75.8 ± 0.21, protocatechuic acid 14.6 ± 0.5, chlorogenic acid 6.79 ± 0.43, and caffeic acid 5.34 ± 0.2 μg/ml. PE showed strong inhibitory activity of 73% at 200 μg/ml toward lipid peroxidation in egg lecithin, concentration-dependent inhibition of deoxyribose oxidation at 200 μg/ml was 85% inhibition, and considerable antioxidant activity in DPPH radical assay system at 200 μg/ml was 79% inhibition. BHA and gallic acid showed significant observations. Conclusion: The antioxidant potency significantly correlated with the phenolic content of PE. Considering that medicinal herbs contain potent phytochemicals, which is effectively utilized for various degenerative disease, these in vitro results showed that N. arbortristis leaves could be effectively employed in functional food, to alleviate oxidative stress.
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Affiliation(s)
- S Meghashri
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysore, Karnataka, India
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Woode E, Ameyaw EO, Boakye-Gyasi E, Abotsi WKM. Analgesic effects of an ethanol extract of the fruits of Xylopia aethiopica (Dunal) A. Rich (Annonaceae) and the major constituent, xylopic acid in murine models. J Pharm Bioallied Sci 2012; 4:291-301. [PMID: 23248562 PMCID: PMC3523524 DOI: 10.4103/0975-7406.103251] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 02/12/2012] [Accepted: 05/19/2012] [Indexed: 01/27/2023] Open
Abstract
Background: Fruit extracts of Xylopia aethiopica are used traditionally in the management of pain disorders including rheumatism, headache, colic pain, and neuralgia. Little pharmacological data exists in scientific literature of the effect of the fruit extract and its major diterpene, xylopic acid, on pain. The present study evaluated the analgesic properties of the ethanol extract of X. aethiopica (XAE) and xylopic acid (XA), in murine models. Materials and Methods: XAE and XA were assessed in chemical (acetic acid-induced abdominal writhing and formalin tests), thermal (Tail-flick and Hargreaves thermal hyperalgesia tests), and mechanical (Randall-Selitto paw pressure test) pain models. Results: XAE and XA exhibited significant analgesic activity in all the pain models used. XAE (30-300 mg kg-1, p.o.) and XA (10-100 mg kg-1, p.o.) inhibited acetic acid-induced visceral nociception, formalin- induced paw pain (both neurogenic and inflammatory), thermal pain as well as carrageenan-induced mechanical and thermal hyperalgesia in animals. Morphine (1-10 mg kg-1, i.p.) and diclofenac (1-10 mg kg-1, i.p.), used as controls, exhibited similar anti-nociceptive activities. XAE and XA did not induce tolerance to their respective anti-nociceptive effects in the formalin test after chronic administration. Morphine tolerance did not also cross-generalize to the analgesic effects of XAE or XA. Conclusions: These findings establish the analgesic properties of the ethanol fruit extract of X. aethiopica and its major diterpene, xylopic acid.
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Affiliation(s)
- Eric Woode
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Bioactivities of the genus Combretum (Combretaceae): a review. Molecules 2012; 17:9142-206. [PMID: 22858840 PMCID: PMC6268318 DOI: 10.3390/molecules17089142] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 07/23/2012] [Accepted: 07/25/2012] [Indexed: 11/16/2022] Open
Abstract
The Combretaceae is a large family of herbs, shrubs and trees, comprising about 20 genera and 600 species with tropical distribution around the globe and centers of diversity in Africa and Asia. Some Combretum species are extensively used in traditional medicine against inflammation, infections, diabetes, malaria, bleeding, diarrhea and digestive disorders and others as a diuretic. The present work is a literature survey of Combretum species that have been evaluated for their ability to exert biological activities. A total number of 36 Combretum species are discussed with regard to plant parts used, component tested and bioassay models. This review is of fundamental importance to promoting studies on Combretum species, thereby contributing to the development of new therapeutic alternatives that may improve the health of people suffering from various health problems.
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Bednarczyk-Cwynar B, Zaprutko L, Marciniak J, Lewandowski G, Szulc M, Kaminska E, Wachowiak N, Mikolajczak PL. The analgesic and anti-inflammatory effect of new oleanolic acid acyloxyimino derivative. Eur J Pharm Sci 2012; 47:549-55. [PMID: 22867936 DOI: 10.1016/j.ejps.2012.07.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 06/25/2012] [Accepted: 07/22/2012] [Indexed: 11/26/2022]
Abstract
The new derivative of well-known triterpene, oleanolic acid: methyl 3-octanoyloxyiminoolean-12-en-28-oate 5, was synthesized by the action of caprylic acid on methyl oleanolate 3-oxime in the presence of dicyclohexylcarbodiimide in dioxane. The molecular structure of the obtained product 5 was confirmed by spectral methods. The acute toxicity, locomotor activity, and the dose-dependent analgesic activity were studied. In addition, the effect of compound 5 on morphine-induced analgesic activity, the dose-dependent anti-inflammatory activity and the effect of the compound on diclofenac anti-inflammatory activity study were performed. The results proved a low toxicity (LD₅₀ > 2 g/kg) of the tested product 5, which affected neither vertical nor horizontal locomotor activity in the given range of doses. The triterpene 5 also produced centrally mediated (morphine-like) analgesic action; however, only in the highest dose. The synergistic analgesic activity of 5 and morphine in the doses of 30.0 and 300.0mg/kg was found. Compound 5 expressed the anti-inflammatory action which did not affect the anti-inflammatory activity of diclofenac after their combined administration.
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Affiliation(s)
- Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka Str. 6, 60-780 Poznan, Poland.
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Longhi-Balbinot DT, Lanznaster D, Baggio CH, Silva MD, Cabrera CH, Facundo VA, Santos ARS. Anti-inflammatory effect of triterpene 3β, 6β, 16β-trihydroxylup-20(29)-ene obtained from Combretum leprosum Mart & Eich in mice. JOURNAL OF ETHNOPHARMACOLOGY 2012; 142:59-64. [PMID: 22575213 DOI: 10.1016/j.jep.2012.04.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 04/03/2012] [Accepted: 04/09/2012] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The 3β, 6β, 16β-trihydroxylup-20(29)-ene (TTHL) is a pentacyclic triterpene obtained from a medicinal plant named Combretum leprosum. In folk medicine, this plant is used to treat several diseases associated with inflammation and pain. We previously demonstrated that TTHL presents a significant antinociceptive effect, suggesting the involvement of the glutamatergic system. AIM OF THE STUDY This study was designed to investigate the effect of TTHL on nociception and vascular permeability induced by acetic acid. We also evaluated the effect of TTHL on carrageenan-induced peritonitis and the levels of cytokines (interleukin 1-β [IL-1β], tumor necrosis factor α [TNF-α] and interleukin 10 [IL-10]) on peritoneal fluid. MATERIALS AND METHODS TTHL was administered orally by intra-gastric gavage (i.g.) 60 min prior to experimentation. Abdominal contractions and vascular permeability were induced by an intraperitoneal (i.p.) injection of acetic acid (0.6%). We also investigated whether TTHL decreases carrageenan-induced peritonitis (750 μg/cavity) by measuring leukocyte migration and vascular permeability. In addition, we evaluated the effects of TTHL on TNF-α, IL-1β and IL-10 release induced by carrageenan on peritoneal fluid. The levels of these cytokines were measured by ELISA. RESULTS TTHL (0.01-10 mg/kg) administered by intra-gastric (i.g.) gavage inhibited (69±3%) acetic acid-induced abdominal constrictions, with an ID₅₀ of 0.15 (0.03-0.8) mg/kg. TTHL (10mg/kg) also reduced the leukocyte infiltration induced by acetic acid, with an inhibition of 59±9 but had no effect on abdominal vascular permeability. In addition, indomethacin (10 mg/kg, i.p.) reduced the nociceptive behavior (92±1%), total leukocyte migration (29±3%) and capillary permeability (71±3%) induced by acetic acid. While the glucocorticoid dexamethasone (2 mg/kg, s.c.) reduced partially but significantly the nociception (31±1%), besides to promote a marked reduction on total leukocyte migration (60±2%) to the peritoneal cavity caused by acetic acid. In a model of peritonitis induced by carrageenan, TTHL also reduced total leukocyte migration, mainly neutrophils (inhibition of 84±3% and 85±2% at 30 mg/kg and 100 mg/kg, respectively). Likewise, dexamethasone (0.5 mg/kg, i.p.) resulted in an inhibition of 93±3%. Nevertheless, carrageenan-induced abdominal vascular permeability was reduced by dexamethasone but was not altered by TTHL. Furthermore, dexamethasone and TTHL significantly reduced the TNF-α and IL-1β levels in peritoneal fluid, whereas the IL-10 levels were unchanged. CONCLUSIONS Altogether, our data confirm the antinociceptive effect of TTHL and demonstrate its effect in inflammatory animal models, providing novel data about this compound, which could be useful as an anti-inflammatory drug.
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Affiliation(s)
- Daniela T Longhi-Balbinot
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, Florianópolis, SC, Brazil
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Queiroz LMD, Rocha JR, Leitão A, Montanari CA, da Silva ABF, Sousa PJC, Borges RS. A Combined Study Using Ligand-Based Design, Synthesis, and Pharmacological Evaluation of Analogues of the Acetaminophen Ortho-Regioisomer with Potent Analgesic Activity. Chem Biol Drug Des 2012; 80:99-105. [DOI: 10.1111/j.1747-0285.2012.01372.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gouveia MGS, Xavier MA, Barreto AS, Gelain DP, Santos JPA, Araújo AAS, Silva FA, Quintans JS, Agra MF, Cabral AGS, Tavares JF, Silva MS, Quintans-Júnior LJ. Antioxidant, antinociceptive, and anti-inflammatory properties of the ethanolic extract of Combretum duarteanum in rodents. J Med Food 2011; 14:1389-96. [PMID: 21663477 DOI: 10.1089/jmf.2010.0212] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The antioxidant, antinociceptive, and anti-inflammatory activities of the ethanolic extract from leaves of Combretum duarteanum (EEC) were assessed in rodents through in vitro tests. The antioxidant activity was investigated by using thiobarbituric acid reactive species (TBARS), hydroxyl radical-scavenging, and scavenging activity of nitric oxide assays. The antinociceptive activity was investigated by using acetic acid-induced writhing, formalin, and hot-plate tests in mice. The anti-inflammatory activity was assessed in rats by using the carrageenan-induced hind-paw edema test and arachidonic acid-induced paw edema test. EEC possesses a strong antioxidant potential according to the TBARS, nitric oxide, and hydroxyl radical-scavenging assays; it also presented scavenger activity in all in vitro tests. After intraperitoneal injection, EEC (100, 200, and 400 mg/kg) significantly reduced the number of writhes (38.1%, 90.6%, and 97.8%, respectively) in a writhing test and the number of paw licks during phase 1 (30.5% and 69.5%, higher doses) and phase 2 (38.1%, 90.6%, and 97.8%, all doses) of a formalin test when compared with the control group. Naloxone (1.5 mg/kg, intraperitoneally) antagonized the antinociceptive action of EEC (400 mg/kg), and this finding suggests participation of the opioid system. Administration of 200 and 400 mg/kg (intraperitoneally) of EEC exhibited an anti-inflammatory activity in the carrageenin test, which was based on interference with prostaglandin synthesis. This finding was confirmed by the arachidonic acid test. Together, these results indicate that properties of EEC might be further explored in the search for newer tools to treat painful inflammatory conditions, including those related to pro-oxidant states.
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Affiliation(s)
- Marcos G S Gouveia
- Department of Physiology, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brazil
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Longhi-Balbinot DT, Martins DF, Lanznaster D, Silva MD, Facundo VA, Santos AR. Further analyses of mechanisms underlying the antinociceptive effect of the triterpene 3β, 6β, 16β-trihydroxylup-20(29)-ene in mice. Eur J Pharmacol 2011; 653:32-40. [DOI: 10.1016/j.ejphar.2010.11.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 10/07/2010] [Accepted: 11/26/2010] [Indexed: 10/18/2022]
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Lopes L, Marques R, Pereira S, Ayres M, Chaves M, Cavalheiro A, Vieira Júnior G, Almeida F. Antinociceptive effect on mice of the hydroalcoholic fraction and (-) epicatechin obtained from Combretum leprosum Mart & Eich. Braz J Med Biol Res 2010; 43:1184-92. [DOI: 10.1590/s0100-879x2010007500121] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2010] [Accepted: 10/19/2010] [Indexed: 11/22/2022] Open
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Vidyalakshmi K, Kamalakannan P, Viswanathan S, Ramaswamy S. Antinociceptive effect of certain dihydroxy flavones in mice. Pharmacol Biochem Behav 2010; 96:1-6. [DOI: 10.1016/j.pbb.2010.03.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Revised: 03/08/2010] [Accepted: 03/17/2010] [Indexed: 10/19/2022]
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New medicinal properties of mangostins: Analgesic activity and pharmacological characterization of active ingredients from the fruit hull of Garcinia mangostana L. Pharmacol Biochem Behav 2010; 95:166-72. [DOI: 10.1016/j.pbb.2009.12.021] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2009] [Revised: 12/14/2009] [Accepted: 12/22/2009] [Indexed: 12/11/2022]
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Longhi-Balbinot DT, Pietrovski EF, Gadotti VM, Martins DF, Facundo VA, Santos ARS. Spinal antinociception evoked by the triterpene 3β, 6β, 16β-trihydroxylup-20(29)-ene in mice: Evidence for the involvement of the glutamatergic system via NMDA and metabotropic glutamate receptors. Eur J Pharmacol 2009; 623:30-6. [DOI: 10.1016/j.ejphar.2009.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2009] [Revised: 08/31/2009] [Accepted: 09/08/2009] [Indexed: 01/05/2023]
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Lopes LS, Pereira SS, Silva LL, Figueiredo KA, Moura BA, Almeida FRC, Sousa FCF. Antinociceptive effect of topiramate in models of acute pain and diabetic neuropathy in rodents. Life Sci 2008; 84:105-10. [PMID: 19056404 DOI: 10.1016/j.lfs.2008.11.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2008] [Revised: 10/25/2008] [Accepted: 11/06/2008] [Indexed: 10/21/2022]
Abstract
This study assesses the antinociceptive effect induced by different dosages of topiramate (TP), an anticonvulsant drug that is orally administered in models of neuropathic pain and acute pain in rats and mice, respectively. Orally administered TP (80 mg/Kg) in mice causes antinociception in the first and second phases of a formalin test, while in doses of 20 and 40 mg/Kg it was only effective in the second phase. TP (80 mg/Kg, p.o) also exhibited antinociceptive action in the hot plate test, however, it did not have an effect in the capsaicin test in mice, nor in the model of neuropathic pain in diabetic rats. The antinociceptive effect caused by TP (80 mg/Kg, p.o) in the formalin test was reversed by prior treatment with naloxone (opioid antagonist), but not with glibenclamide (antagonist of the potassium channel), ondansetron (antagonist of the serotonin 5HT3 receptor) or cyproheptadine (antagonist of the serotonin 5HT2A receptor).The data show that TP has an important antinociceptive effect in the models of nociception induced by chemical (formalin) or thermal (hot plate) stimuli, and that the opioid system plays a part in the antinociceptive effect, as shown by formalin.
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Affiliation(s)
- L S Lopes
- Department of Physiology and Pharmacology, Medical School, Federal University of Ceará, Fortaleza, Brazil
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Pereira RP, Fachinetto R, de Souza Prestes A, Puntel RL, Santos da Silva GN, Heinzmann BM, Boschetti TK, Athayde ML, Bürger ME, Morel AF, Morsch VM, Rocha JBT. Antioxidant effects of different extracts from Melissa officinalis, Matricaria recutita and Cymbopogon citratus. Neurochem Res 2008; 34:973-83. [PMID: 18853256 DOI: 10.1007/s11064-008-9861-z] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2007] [Accepted: 09/24/2008] [Indexed: 11/30/2022]
Abstract
Considering the important role of oxidative stress in the pathogenesis of several neurological diseases, and the growing evidence of the presence of compounds with antioxidant properties in the plant extracts, the aim of the present study was to investigate the antioxidant capacity of three plants used in Brazil to treat neurological disorders: Melissa officinalis, Matricaria recutita and Cymbopogon citratus. The antioxidant effect of phenolic compounds commonly found in plant extracts, namely, quercetin, gallic acid, quercitrin and rutin was also examined for comparative purposes. Cerebral lipid peroxidation (assessed by TBARS) was induced by iron sulfate (10 microM), sodium nitroprusside (5 microM) or 3-nitropropionic acid (2 mM). Free radical scavenger properties and the chemical composition of plant extracts were assessed by 1'-1' Diphenyl-2' picrylhydrazyl (DPPH) method and by Thin Layer Chromatography (TLC), respectively. M. officinalis aqueous extract caused the highest decrease in TBARS production induced by all tested pro-oxidants. In the DPPH assay, M. officinalis presented also the best antioxidant effect, but, in this case, the antioxidant potencies were similar for the aqueous, methanolic and ethanolic extracts. Among the purified compounds, quercetin had the highest antioxidant activity followed by gallic acid, quercitrin and rutin. In this work, we have demonstrated that the plant extracts could protect against oxidative damage induced by various pro-oxidant agents that induce lipid peroxidation by different process. Thus, plant extracts could inhibit the generation of early chemical reactive species that subsequently initiate lipid peroxidation or, alternatively, they could block a common final pathway in the process of polyunsaturated fatty acids peroxidation. Our study indicates that M. officinalis could be considered an effective agent in the prevention of various neurological diseases associated with oxidative stress.
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Affiliation(s)
- Romaiana Picada Pereira
- Departamento de Química, Programa de Pós-Graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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Jesse CR, Rocha JBT, Nogueira CW, Savegnago L. Further analysis of the antinociceptive action caused by p-methoxyl-diphenyl diselenide in mice. Pharmacol Biochem Behav 2008; 91:573-80. [PMID: 18929597 DOI: 10.1016/j.pbb.2008.09.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2008] [Revised: 09/17/2008] [Accepted: 09/24/2008] [Indexed: 01/15/2023]
Abstract
The objective of this study was to extend our previous findings by investigating in greater detail the mechanisms that might be involved in the antinociceptive action of p-methoxyl-diphenyl diselenide, (MeOPhSe)(2), in mice. The pretreatment with nitric oxide precursor, l-arginine (600 mg/kg, intraperitoneal, i.p.), reversed antinociception caused by (MeOPhSe)(2) (10 mg/kg, p.o.) or N(G)-nitro-l-arginine (l-NOARG, 75 mg/kg, i.p.) in the glutamate test. Ondansetron (0.5 mg/kg, i.p., a 5-HT(3) receptor antagonist) and SCH23390 (0.05 mg/kg, i.p.., a D(1) receptor antagonist) blocked the antinociceptive effect caused by (MeOPhSe)(2). Conversely, pindolol (1 mg/kg, i.p., a 5-HT(1A)/(1B) receptor/beta adrenoceptor antagonist), WAY 100635 (0.7 mg/kg, i.p., a selective 5-HT(1A) receptor antagonist), ketanserin (0.3 mg/kg, i.p., a selective 5-HT(2A) receptor antagonist), prazosin (0.15 mg/kg, i.p., an alpha(1)-adrenoreceptor antagonist), yohimbine (1.0 mg/kg, i.p., an alpha(2)-adrenoreceptor antagonist), sulpiride (5 mg/kg, i.p., a D(2) receptor antagonist), naloxone (1 mg/kg, i.p., a non-selective opioid receptor antagonist) and caffeine (3 mg/kg, i.p., a non-selective adenosine receptor antagonist) did not change the antinociceptive effect of (MeOPhSe)(2). (MeOPhSe)(2) significantly inhibited nociception induced by intraplantar (i.pl.) injection of bradykinin (10 nmol/paw) and Des-Arg(9)-bradykinin (10 nmol/paw, a B(1) receptor agonist). (MeOPhSe)(2) significantly inhibited phorbol myristate acetate (PMA, 0.03 mug/paw, a protein kinase C (PKC) activator)-induced licking response. These results indicate that (MeOPhSe)(2) produced antinociception in mice through mechanisms that involve an interaction with nitrergic system, 5-HT(3) and D(1) receptors. The antinociceptive effect is related to (MeOPhSe)(2) ability to interact with kinin B(1) and B(2) receptors and PKC pathway mediated mechanisms.
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Affiliation(s)
- Cristiano R Jesse
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
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Luiz AP, Moura JD, Meotti FC, Guginski G, Guimarães CLS, Azevedo MS, Rodrigues ALS, Santos ARS. Antinociceptive action of ethanolic extract obtained from roots of Humirianthera ampla Miers. JOURNAL OF ETHNOPHARMACOLOGY 2007; 114:355-63. [PMID: 17900839 DOI: 10.1016/j.jep.2007.08.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2007] [Revised: 08/08/2007] [Accepted: 08/12/2007] [Indexed: 05/17/2023]
Abstract
Humirianthera ampla Miers is a member of the Icacinaceae family and presents great amounts of di and triterpenoids. These chemical constituents in roots of Humirianthera ampla sustain not only the ethnopharmacological use against snake venom, but also some anti-inflammatory and analgesic properties of the plant. In this study we investigated the antinociceptive action of the ethanolic extract (EE) from roots of the Humirianthera ampla in chemical and thermal models of pain in mice. The oral treatment with ethanolic extract dose-dependently inhibited glutamate-, capsaicin- and formalin-induced licking. However, it did not prevent the nociception caused by radiant heat on the tail-flick test. The ethanolic extract (30 mg/kg) caused marked inhibition of the nociceptive biting response induced by glutamate, (+/-)-1-aminocyclopentane-trans-1,3-dicarboxylic acid (trans-ACPD), N-methyl-d-aspartate (NMDA) and substance P. The antinociception caused by ethanolic extract was significantly attenuated by naloxone, l-arginine, WAY100635, ondansetron or ketanserin, but not by caffeine or naloxone methiodide. In conclusion, the ethanolic extract from roots of Humirianthera ampla produces antinociception against neurogenic and inflammatory models of nociception. The mechanisms of antinociception involve nitric oxide, opioid, serotonin and glutamate pathways. Therefore, our results support the ethnopharmacological use of the Humirianthera ampla against inflammatory and painful process caused by snake venom.
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Affiliation(s)
- Ana Paula Luiz
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, Florianópolis 88040-900, SC, Brazil
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