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Vendruscolo I, Venturella SRT, Bressiani PA, Marco IG, Novello CR, Almeida IV, Vicentini VEP, Mello JCP, Düsman E. Cytotoxicity of extracts and compounds isolated from Croton echioides in animal tumor cell (HTC). BRAZ J BIOL 2022; 82:e264356. [PMID: 36169527 DOI: 10.1590/1519-6984.264356] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 09/13/2022] [Indexed: 11/22/2022] Open
Abstract
The search for compounds with anticancer effects is of paramount importance today due to the high incidence of the disease. The Euphorbiaceae family is known for having compounds with therapeutic properties, one of its genera being Croton. It has several species, which contain compounds already known for their biological activities, presenting anti-inflammatory, antimicrobial and anticancer properties. Thus, the cytotoxicity/antiproliferative activity of semi-purified fractions and compounds isolated from Croton echioides in liver tumor cells of Rattus norvegicus (HTC) was evaluated by the MTT test. The semi-purified fractions showed cytotoxicity at concentrations above 200 µg/mL, at 24, 48 and 72 hours, reaching cell viability of 24.78% [400 µg/mL] at 24 hours, 12.79% [500 µg/mL] at 48 hours and 10.57% [300 µg/mL] at 72 hours. For the isolated compounds, lupeol had a cytotoxic effect in all concentrations (1, 5, 10, 15, 20, 40, 60, 80 and 100 µg/mL) and tested times (24, 48 and 72 hours), reaching minimum viability of 4.37% [100 µg/mL], within 72 hours. The clerodan diterpenes CEH-1 and CEH-4 also showed antiproliferative activity, with minimum viability of 36.19% [100 µg/mL] over 72 hours and 21.33% [100 µg/mL] over 48 hours, respectively. However, the clerodan diterpenes CEH-2 and CEH-3 did not shows a cytotoxic effect for HTC cells. Thus, there is a cytotoxic/antiproliferative potential of C. echioides against tumor cells, with targeted to mitochondrial enzymes, associated with cell proliferation, indicating that this species deserves prominence in the search for new molecules for the treatment of cancer.
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Affiliation(s)
- I Vendruscolo
- Universidade Tecnológica Federal do Paraná, Departamento de Engenharia Química, Francisco Beltrão, PR, Brasil
| | - S R T Venturella
- Universidade Tecnológica Federal do Paraná, Departamento de Engenharia Química, Francisco Beltrão, PR, Brasil
| | - P A Bressiani
- Universidade Tecnológica Federal do Paraná, Departamento de Engenharia Química, Francisco Beltrão, PR, Brasil
| | - I G Marco
- Universidade Tecnológica Federal do Paraná, Departamento de Engenharia Química, Francisco Beltrão, PR, Brasil
| | - C R Novello
- Universidade Tecnológica Federal do Paraná, Departamento de Química e Biologia, Francisco Beltrão, PR, Brasil
| | - I V Almeida
- Universidade Federal Rural da Amazônia, Coordenação de Ciências Biológicas, Capitão Poço, PA, Brasil
| | - V E P Vicentini
- Universidade Estadual de Maringá, Departamento de Biotecnologia, Genética e Biologia Celular, Maringá, PR, Brasil
| | - J C P Mello
- Universidade Estadual de Maringá, Departamento de Farmácia, Maringá, PR, Brasil
| | - E Düsman
- Universidade Tecnológica Federal do Paraná, Departamento de Química e Biologia, Francisco Beltrão, PR, Brasil
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da Silva MMC, de Araújo-Neto JB, de Araújo ACJ, Freitas PR, de M Oliveira-Tintino CD, Begnini IM, Rebelo RA, da Silva LE, Mireski SL, Nasato MC, Krautler MIL, Ribeiro-Filho J, Coutinho HDM, Tintino SR. Potentiation of Antibiotic Activity by a Meldrum's Acid Arylamino Methylene Derivative against Multidrug-Resistant Bacterial Strains. Indian J Microbiol 2020; 61:100-103. [PMID: 33505100 DOI: 10.1007/s12088-020-00910-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/03/2020] [Indexed: 11/25/2022] Open
Abstract
This study aimed to evaluate the intrinsic antibacterial activity and antibiotic-enhancing effect of an arylamino methylene derivative (MAD) in association with fluoroquinolones. The antibacterial activity against multiresistant Pseudomonas aeruginosa, Staphylococcus aureus and Escherichia coli was analyzed by determining the minimum inhibitory concentration (MIC) using the broth micro dilution method. A reduction in the MIC of the fluoroquinolones against strains treated simultaneously with the MAD was interpreted as an enhanced antibiotic activity. While the MAD exhibited no clinically effective action (MIC ≥ 1.024 µg/mL), it was found to significantly potentiate the activity of norfloxacin, ofloxacin and lomefloxacin against all the strains, which may be related to structural similarities between the MAD and quinolones. Our findings suggest that Meldrum's acid arylamino derivatives may represent promising molecules in the elaboration of new drugs to reverse resistance to fluoroquinolones.
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Affiliation(s)
- Maria M C da Silva
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry, Regional University of Cariri-URCA, Rua Cel. Antonio Luiz, 1161. Pimenta, Crato, CE CEP: 63105-000 Brazil
| | - José B de Araújo-Neto
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry, Regional University of Cariri-URCA, Rua Cel. Antonio Luiz, 1161. Pimenta, Crato, CE CEP: 63105-000 Brazil
| | - Ana C J de Araújo
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry, Regional University of Cariri-URCA, Rua Cel. Antonio Luiz, 1161. Pimenta, Crato, CE CEP: 63105-000 Brazil
| | - Priscilla R Freitas
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry, Regional University of Cariri-URCA, Rua Cel. Antonio Luiz, 1161. Pimenta, Crato, CE CEP: 63105-000 Brazil
| | - Cícera D de M Oliveira-Tintino
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry, Regional University of Cariri-URCA, Rua Cel. Antonio Luiz, 1161. Pimenta, Crato, CE CEP: 63105-000 Brazil
| | - Iêda M Begnini
- Department of Chemistry, Regional University of Blumenau-FURB, Blumenau, Brazil
| | - Ricardo A Rebelo
- Department of Chemistry, Regional University of Blumenau-FURB, Blumenau, Brazil
| | - Luiz E da Silva
- Postgraduate Program in Sustainable Territorial Development-Coastal Sector, Federal University of Paraná-UFPR, Curitiba, Brazil
| | - Sandro L Mireski
- Department of Chemistry, Regional University of Blumenau-FURB, Blumenau, Brazil
| | - Michele C Nasato
- Department of Chemistry, Regional University of Blumenau-FURB, Blumenau, Brazil
| | - Maria I L Krautler
- Department of Chemistry, Regional University of Blumenau-FURB, Blumenau, Brazil
| | - Jaime Ribeiro-Filho
- Laboratory of Investigation in Genetics and Translational Hematology, Gonçalo Moniz Institute, Oswaldo Cruz Foundation-IGM-FIOCRUZ/BA, Salvador, BA Brazil
| | - Henrique D M Coutinho
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry, Regional University of Cariri-URCA, Rua Cel. Antonio Luiz, 1161. Pimenta, Crato, CE CEP: 63105-000 Brazil
| | - Saulo R Tintino
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry, Regional University of Cariri-URCA, Rua Cel. Antonio Luiz, 1161. Pimenta, Crato, CE CEP: 63105-000 Brazil
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J. de Araújo AC, R. Freitas P, Rodrigues dos Santos Barbosa C, Muniz DF, Esmeraldo Rocha J, Neto JBDA, C. da Silva MM, Moura TF, Pereira RLS, Ribeiro-Filho J, da Silva LE, do Amaral W, Deschamps C, Tintino SR, Iriti M, Vitalini S, Melo Coutinho HD. Essential Oil of Croton ceanothifolius Baill. Potentiates the Effect of Antibiotics against Multiresistant Bacteria. Antibiotics (Basel) 2020; 9:antibiotics9010027. [PMID: 31947644 PMCID: PMC7168236 DOI: 10.3390/antibiotics9010027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/07/2020] [Accepted: 01/10/2020] [Indexed: 12/14/2022] Open
Abstract
This study is a pioneer in reporting the antibacterial properties of the species Croton ceanothifolius Baill. The genus Croton belongs to the family Euphorbiaceae composed of numerous species with documented biological activities. However, the pharmacological properties of C. ceanothifolius remain poorly understood. The leaves of this plant were submitted to hydrodistillation for essential oil (CcEO) extraction and the phytochemical characterization of the oil was performed by GC/MS. The minimum inhibitory concentration of the CcEO was determined for the evaluation of antibacterial activity against multiresistant strains of Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. The antibiotic-modulating activity of the oil, in combination with antibiotics, was also evaluated. The combination of the CcEO with penicillin, norfloxacin, and gentamicin presented a synergistic effect. This effect was more significant for the association with antibiotics of the quinolone and aminoglycoside classes against Escherichia coli. The association of oil with gentamicin showed better results with regard to the Gram-positive strain. The association of the oil with norfloxacin against P. aeruginosa also showed synergism, but the association with penicillin did not change the effect of this antibiotic. Thus, it is concluded that C. ceanothifolius essential oil selectively potentiates the action of antibiotics against multiresistant strains.
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Affiliation(s)
- Ana C. J. de Araújo
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
| | - Priscilla R. Freitas
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
| | - Cristina Rodrigues dos Santos Barbosa
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
| | - Débora F. Muniz
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
| | - Janaína Esmeraldo Rocha
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
| | - José B. de Araújo Neto
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
| | - Maria M. C. da Silva
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
| | - Talysson F. Moura
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
| | - Raimundo L. S. Pereira
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
| | - Jaime Ribeiro-Filho
- Gonçalo Moniz Institute, Fundação Oswaldo Cruz (IGM-FIOCRUZ/BA), Salvador 40296-710, Brazil;
| | - Luiz E. da Silva
- Setor Litoral, Federal University of Paraná, Curitiba 80060-000, Brazil; (L.E.d.S.); (W.d.A.); (C.D.)
| | - Wanderlei do Amaral
- Setor Litoral, Federal University of Paraná, Curitiba 80060-000, Brazil; (L.E.d.S.); (W.d.A.); (C.D.)
| | - Cícero Deschamps
- Setor Litoral, Federal University of Paraná, Curitiba 80060-000, Brazil; (L.E.d.S.); (W.d.A.); (C.D.)
| | - Saulo R. Tintino
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
| | - Marcello Iriti
- Department of Agricultural and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy;
| | - Sara Vitalini
- Department of Agricultural and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy;
- Correspondence:
| | - Henrique D. Melo Coutinho
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (A.C.J.d.A.); (P.R.F.); (C.R.d.S.B.); (D.F.M.); (J.E.R.); (J.B.d.A.N.); (M.M.C.d.S.); (T.F.M.); (R.L.S.P.); (S.R.T.); (H.D.M.C.)
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Araújo Monteiro P, Maccari Zelioli ÍA, de Oliveira Sousa IM, Ruiz ALTG, Vendramini-Costa DB, Foglio MA, Carvalho JED. Chemical composition and antiproliferative activity of Croton campestris A.St.-Hil. essential oil. Nat Prod Res 2017; 33:580-583. [PMID: 29117729 DOI: 10.1080/14786419.2017.1399377] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Herein, the antiproliferative potential of the essential oil obtained from fresh leaves of Croton campestris against human tumour cell lines was investigated for the first time. Furthermore, the essential oil obtained by hydrodistillation had the composition determined by gas chromatography-mass spectrometry (GC/MS). Ten major components were identified that comprised 91.59% of the total content, with 23.8% consisting of (Z)-caryophyllene and 16.08% consisting of γ-elemene as main components. The cytotoxic activity was observed mainly for breast (MCF-7) and colon (HT-29) human tumour cell lines, with GI50 (50% growth inhibition) concentration of 8.61 and 9.94 μg/mL, respectively. The results of this study showed that the essential oil obtained from Croton campestris A.St.-Hil. represents a potential source for the search of new antitumour agents.
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Affiliation(s)
- Paula Araújo Monteiro
- a Institute of Biology , University of Campinas (Unicamp) , Campinas , Brazil.,b Chemical, Biological and Agricultural Research Center, (CPQBA) , University of Campinas (Unicamp) , Campinas , Brazil
| | - Ícaro Augusto Maccari Zelioli
- b Chemical, Biological and Agricultural Research Center, (CPQBA) , University of Campinas (Unicamp) , Campinas , Brazil
| | - Ilza Maria de Oliveira Sousa
- b Chemical, Biological and Agricultural Research Center, (CPQBA) , University of Campinas (Unicamp) , Campinas , Brazil
| | | | | | - Mary Ann Foglio
- b Chemical, Biological and Agricultural Research Center, (CPQBA) , University of Campinas (Unicamp) , Campinas , Brazil.,c Faculty of Pharmaceutical Sciences , University of Campinas (Unicamp) , Campinas , Brazil
| | - João Ernesto de Carvalho
- b Chemical, Biological and Agricultural Research Center, (CPQBA) , University of Campinas (Unicamp) , Campinas , Brazil.,c Faculty of Pharmaceutical Sciences , University of Campinas (Unicamp) , Campinas , Brazil
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de Sousa Silveira Z, Macêdo NS, de Freitas TS, da Silva ARP, dos Santos JFS, Morais-Braga MFB, da Costa JGM, Teixeira RNP, Kamdem JP, Coutinho HDM, da Cunha FAB. Antibacterial enhancement of antibiotic activity by Enterolobium contortisiliquum (Vell.) Morong. Asian Pac J Trop Biomed 2017. [DOI: 10.1016/j.apjtb.2017.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Beesoo R, Bhagooli R, Neergheen-Bhujun VS, Li WW, Kagansky A, Bahorun T. Antibacterial and antibiotic potentiating activities of tropical marine sponge extracts. Comp Biochem Physiol C Toxicol Pharmacol 2017; 196:81-90. [PMID: 28392375 DOI: 10.1016/j.cbpc.2017.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 04/04/2017] [Accepted: 04/04/2017] [Indexed: 12/27/2022]
Abstract
Increasing prevalence of antibiotic resistance has led research to focus on discovering new antimicrobial agents derived from the marine biome. Although ample studies have investigated sponges for their bioactive metabolites with promising prospects in drug discovery, the potentiating effects of sponge extracts on antibiotics still remains to be expounded. The present study aimed to investigate the antibacterial capacity of seven tropical sponges collected from Mauritian waters and their modulatory effect in association with three conventional antibiotics namely chloramphenicol, ampicillin and tetracycline. Disc diffusion assay was used to determine the inhibition zone diameter (IZD) of the sponge total crude extracts (CE), hexane (HF), ethyl acetate (EAF) and aqueous (AF) fractions against nine standard bacterial isolates whereas broth microdilution method was used to determine their minimum inhibitory concentrations (MICs), minimum bactericidal concentrations (MBCs) and antibiotic potentiating activity of the most active sponge extract. MIC values of the sponge extracts ranged from 0.039 to 1.25mg/mL. Extracts from Neopetrosia exigua rich in beta-sitosterol and cholesterol displayed the widest activity spectrum against the 9 tested bacterial isolates whilst the best antibacterial profile was observed by its EAF particularly against Staphylococcus aureus and Bacillus cereus with MIC and MBC values of 0.039mg/mL and 0.078mg/mL, respectively. The greatest antibiotic potentiating effect was obtained with the EAF of N. exigua (MIC/2) and ampicillin combination against S. aureus. These findings suggest that the antibacterial properties of the tested marine sponge extracts may provide an alternative and complementary strategy to manage bacterial infections.
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Affiliation(s)
- Rima Beesoo
- Department of Biosciences, Faculty of Science, University of Mauritius, Réduit 80837, Republic of Mauritius; ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit 80837, Republic of Mauritius; Department of Health Sciences, Faculty of Science University of Mauritius, Réduit, Republic of Mauritius
| | - Ranjeet Bhagooli
- Department of Marine and Ocean Science, Fisheries and Mariculture, Faculty of Ocean Studies, University of Mauritius, Réduit 80837, Republic of Mauritius.
| | - Vidushi S Neergheen-Bhujun
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit 80837, Republic of Mauritius; Department of Health Sciences, Faculty of Science University of Mauritius, Réduit, Republic of Mauritius.
| | - Wen-Wu Li
- Guy Hilton Research Centre, Institute for Science and Technology in Medicine, Keele University, Thornburrow Drive, ST4 7 QB Stoke on Trent, UK
| | - Alexander Kagansky
- Synthetic Epigenetics Laboratory, MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital Crewe Road South, Edinburgh EH4 2XU, UK
| | - Theeshan Bahorun
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit 80837, Republic of Mauritius.
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Psidium guajava L. and Psidium brownianum Mart ex DC. potentiate the effect of antibiotics against Gram-positive and Gram-negative bacteria. Eur J Integr Med 2016. [DOI: 10.1016/j.eujim.2016.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Júnior FEB, de Oliveira DR, Boligon AA, Athayde ML, Kamdem JP, Macedo GE, da Silva GF, de Menezes IRA, Costa JGM, Coutinho HDM, Kerntopf MR, Posser T. Protective effects of Croton campestris A. St-Hill in different ulcer models in rodents: evidence for the involvement of nitric oxide and prostaglandins. JOURNAL OF ETHNOPHARMACOLOGY 2014; 153:469-477. [PMID: 24625391 DOI: 10.1016/j.jep.2014.03.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 02/17/2014] [Accepted: 03/01/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Croton campestris A. St.-Hill., popularly known as "velame do campo", is a species native from savannah area of Northeast Brazil, which is used by traditional communities in folk medicine for a variety of health problems, especially detoxification, inflammation and gastritis. The present study investigates the possible gastric antiulcer activity of Croton campestris root extract (CCRE) and mechanisms of action underlying this effect. MATERIALS AND METHODS Gastric lesions were induced in mice by ethanol, acidified ethanol and indomethacin. CCRE was previously administered orally in doses ranging from 50 to 750 mg/kg. Stomach lesions were measured. The involvement of Nitric Oxide (NO), prostaglandins (PGEs), ATP-dependent K+ channel and adrenergic receptor was investigated through specific inhibitors. RESULTS CCRE produced significant antiulcer activity against absolute ethanol, acidified ethanol and indomethacin induced gastric lesions. The pretreatment with L-NAME (10 mg/kg, p.o.), an inhibitor of nitric oxide synthesis and indomethacin (10 mg/kg, s.c.), an inhibitor of prostaglandin production, reversed the antiulcer action of CCRE. CONCLUSION Taking together, these results suggest that the antiulcer activity of CCRE is dependent of NO and prostaglandin pathways possibly due to its ability to stimulate the synthesis of NO, and activation of endogenous prostaglandin production. Therefore, the use of CCRE in traditional Brazilian medicine against gastric disorders has a scientific basis.
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Affiliation(s)
- Francisco E B Júnior
- Laboratório de Farmacologia e Química Medicinal, Departamento de Química Biológica, Universidade Regional do Cariri, CE 63100-000, Brazil; Campus São Gabriel, Universidade Federal do Pampa, São Gabriel, Rio Grande do Sul 97300-000, Brazil.
| | - Dayanne R de Oliveira
- Laboratório de Farmacologia e Química Medicinal, Departamento de Química Biológica, Universidade Regional do Cariri, CE 63100-000, Brazil
| | - Aline Augusti Boligon
- Laboratório de Pesquisa em Fitoquímica, Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Prédio 26, Sala 1115, Santa Maria, CEP 97105-900, Brazil
| | - Margareth Linde Athayde
- Laboratório de Pesquisa em Fitoquímica, Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Prédio 26, Sala 1115, Santa Maria, CEP 97105-900, Brazil
| | - Jean Paul Kamdem
- Departamento de Química, Programa de Pós-Graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS CEP 90035-003, Brazil
| | | | - Gustavo Felipe da Silva
- Campus São Gabriel, Universidade Federal do Pampa, São Gabriel, Rio Grande do Sul 97300-000, Brazil
| | - Irwin R A de Menezes
- Laboratório de Farmacologia e Química Medicinal, Departamento de Química Biológica, Universidade Regional do Cariri, CE 63100-000, Brazil
| | - José G M Costa
- Laboratório de Farmacologia e Química Medicinal, Departamento de Química Biológica, Universidade Regional do Cariri, CE 63100-000, Brazil
| | - Henrique Douglas Melo Coutinho
- Laboratório de Farmacologia e Química Medicinal, Departamento de Química Biológica, Universidade Regional do Cariri, CE 63100-000, Brazil
| | - Marta R Kerntopf
- Laboratório de Farmacologia e Química Medicinal, Departamento de Química Biológica, Universidade Regional do Cariri, CE 63100-000, Brazil
| | - Thaís Posser
- Campus São Gabriel, Universidade Federal do Pampa, São Gabriel, Rio Grande do Sul 97300-000, Brazil.
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