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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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Nogueira RBSS, Tomaz ACA, Pessoa DR, Xavier AL, Pita JCLR, Sobral MV, Pontes MLC, Pessôa HLF, Diniz MFFM, Miranda GEC, Vieira MAR, Marques MOM, Souza MDFV, Cunha EVL. Brown Algae Padina sanctae-crucis Børgesen: A Potential Nutraceutical. Mar Drugs 2017; 15:E251. [PMID: 28954390 PMCID: PMC5666402 DOI: 10.3390/md15100251] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 07/24/2017] [Accepted: 08/07/2017] [Indexed: 02/04/2023] Open
Abstract
Padina sanctae-crucis Børgesen is distributed worldwide in tropical and subtropical seas; belongs to the Dictyotaceae family, and has proven to be an exceptional source of biologically active compounds. Four compounds were isolated and identified, namely: dolastane diterpene new for the genus Padina; phaeophytin and hidroxy-phaeophytin new for the family Dictyotaceae, and; mannitol first described in this species. Saturated fatty acids as compared to the percentages of unsaturated fatty acids were shown to be present in greater abundance. Palmitic and linolenic acid were the main saturated and unsaturated acids, respectively. Cytotoxic and antioxidant activities were evaluated using human erythrocytes. In vivo evaluations of acute toxicity and genotoxicity were performed in mice. Methanolic extract of P.sanctae-crucis presented antioxidant activity and did not induce cytotoxicity, genotoxicity or acute toxicity. Since Padina sanctae-crucis is already used as food, has essential fatty acids for the nutrition of mammals, does not present toxicity and has antioxidant activity, it can be considered as a potential nutraceutical.
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Affiliation(s)
- Raquel B S S Nogueira
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Anna Cláudia A Tomaz
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Déborah R Pessoa
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Aline L Xavier
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - João Carlos L R Pita
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Marianna V Sobral
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
- Department of Pharmaceutical Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil.
| | - Marcela L C Pontes
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Hilzeth L F Pessôa
- Postgraduate Program in Development and Technological Innovation in Medicines, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
- Department of Molecular Biology, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil.
| | - Margareth F F M Diniz
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
- Department of Pharmaceutical Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil.
- Postgraduate Program in Development and Technological Innovation in Medicines, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - George Emmanuel C Miranda
- Department of Systematics and Ecology, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil.
| | - Maria Aparecida R Vieira
- Center of R&D of Plant Genetic Resources, Agronomical Institute, CP28, Campinas 13001-970, SP, Brazil.
| | - Marcia O M Marques
- Center of R&D of Plant Genetic Resources, Agronomical Institute, CP28, Campinas 13001-970, SP, Brazil.
| | - Maria de Fátima V Souza
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
- Department of Pharmaceutical Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil.
- Postgraduate Program in Development and Technological Innovation in Medicines, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Emídio V L Cunha
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
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Portela JL, Soares D, Rosa H, Roos DH, Pinton S, Ávila DS, Puntel RL. Ilex paraguariensis crude extract acts on protection and reversion from damage induced by t-butyl hydroperoxide in human erythrocytes: a comparative study with isolated caffeic and/or chlorogenic acids. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:2007-2014. [PMID: 27545589 DOI: 10.1002/jsfa.8001] [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: 03/02/2016] [Revised: 07/22/2016] [Accepted: 08/16/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Studies comparing the effects of phytochemicals under different regimens of exposure are necessary to give a better indication about their mechanism(s) of protection. Hence, in the present study, we investigated the preventive (pre-incubation), protective (co-incubation) and/or remediative (post-incubation) activity of chlorogenic acid and caffeic acids, in comparison with Ilex paraguariensis crude extract, against t-butyl hydroperoxide (t-BHP)-induced damage to human erythrocytes. RESULTS We found that both caffeic and chlorogenic acids were able to prevent and revert the hemolysis associated with t-BHP exposure. By contrast, isolated compounds (alone or in combination) presented no effect on basal and/or t-BHP-induced non-protein thiol (NPSH) oxidation or production of thiobarbituric acid reactive substances (TBBARS). In turn, I. paraguariensis extract was effective to prevent, protect and revert the hemolysis associated with t-BHP exposure. Moreover, I. paraguariensis significantly protects and reverts t-BHP-induced NPSH oxidation and TBARS production. CONCLUSIONS We have found that I. paraguariensis extract acts better with respect to the protection and reversion of t-BHP-associated changes, whereas isolated compounds are more active in preventing and reverting t-BHP pro-hemolytic action. Moreover, our data suggest that the pro-hemolytic activity of t-BHP may occur via mechanism(s) other(s) than lipid peroxidation and/or NPSH oxidation. © 2016 Society of Chemical Industry.
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Affiliation(s)
- José Luiz Portela
- Universidade Federal do Pampa - Campus Uruguaiana, BR-472 Km 7, Uruguaiana, 97500-970, RS, Brazil
| | - Deividi Soares
- Universidade Federal do Pampa - Campus Uruguaiana, BR-472 Km 7, Uruguaiana, 97500-970, RS, Brazil
| | - Hemerson Rosa
- Universidade Federal do Pampa - Campus Uruguaiana, BR-472 Km 7, Uruguaiana, 97500-970, RS, Brazil
| | - Daniel Henrique Roos
- Universidade Federal do Pampa - Campus Uruguaiana, BR-472 Km 7, Uruguaiana, 97500-970, RS, Brazil
| | - Simone Pinton
- Universidade Federal do Pampa - Campus Uruguaiana, BR-472 Km 7, Uruguaiana, 97500-970, RS, Brazil
| | - Daiana Silva Ávila
- 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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Prestes ADS, dos Santos MM, Ecker A, Zanini D, Schetinger MRC, Rosemberg DB, da Rocha JBT, Barbosa NV. Evaluation of methylglyoxal toxicity in human erythrocytes, leukocytes and platelets. Toxicol Mech Methods 2017; 27:307-317. [DOI: 10.1080/15376516.2017.1285971] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Matheus Mülling dos Santos
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Assis Ecker
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Daniela Zanini
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, Brazil
| | | | - Denis Broock Rosemberg
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, Brazil
| | | | - Nilda Vargas Barbosa
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, Brazil
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The design of redox active thiol peroxidase mimics: Dihydrolipoic acid recognition correlates with cytotoxicity and prooxidant action. Biochem Pharmacol 2016; 104:19-28. [DOI: 10.1016/j.bcp.2016.01.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 01/14/2016] [Indexed: 10/22/2022]
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Braga AA, e Lacerda RR, de Vasconcelos Medeiros GKV, Gonçalves GF, de Luna Freire Pessoa H, Cardoso JD, de Almeida Gadelha CA, da Silva BA, Santi-Gadelha T. Antibacterial and Hemolytic Activity of a new Lectin Purified from the Seeds of Sterculia Foetida L. Appl Biochem Biotechnol 2014; 175:1689-99. [DOI: 10.1007/s12010-014-1390-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 11/12/2014] [Indexed: 11/29/2022]
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Pinton S, Luchese C, Nogueira CW. Comparison of the antioxidant properties and the toxicity of p,p'-dichlorodiphenyl ditelluride with the parent compound, diphenyl ditelluride. Biol Trace Elem Res 2011; 139:204-16. [PMID: 20191388 DOI: 10.1007/s12011-010-8645-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2009] [Accepted: 02/04/2010] [Indexed: 10/19/2022]
Abstract
The hypothesis to be tested in this study is whether the introduction of the chloro group into diphenyl ditelluride molecule (p,p'-dichlorodiphenyl ditelluride, compound 1b) alters the antioxidant and scavenging activity of diphenyl ditelluride (compound 1a) in vitro. The results revealed that 1a and 1b had a potent antioxidant activity in vitro. However, the introduction of a functional group, chloro, into diphenyl ditelluride molecule (1b) did not cause great alterations in the antioxidant action of diphenyl ditelluride against lipid peroxidation, protein carbonyl, and scavenging of 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonate) and 2,2'-diphenyl-1-picrylhydrazyl radicals. Based on the in vitro results, different doses (0.25 and 0.75 µmol/kg) of 1a and 1b or vehicle (canola oil, 1 ml/kg) were administered to rats to investigate if the presence of chloro into diphenyl ditelluride molecule reduces its toxicity. The data demonstrate that the chloro group introduced into diphenyl ditelluride molecule did not alter the acute oral toxicity in rats. The administration of compound 1a in rats only altered the urea level, while compound 1b caused alterations in all toxicological parameters analyzed (alanine aminotransferase and aspartate aminotransferase activities, urea and creatinine levels) in plasma of rats. The results of the present investigation support similar antioxidant and scavenging activities of 1a and 1b in rat liver homogenate in vitro. Furthermore, the presence of chloro into diphenyl ditelluride molecule did not alter the mortality index but increased toxicity of diphenyl ditelluride in rats.
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Affiliation(s)
- Simone Pinton
- 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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8
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Meinerz DF, Sudati JH, dos Santos DB, Frediani A, Alberto EE, Allebrandt J, Franco JL, Barbosa NBV, Aschner M, da Rocha JBT. Evaluation of the biological effects of (S)-dimethyl 2-(3-(phenyltellanyl) propanamido) succinate, a new telluroamino acid derivative of aspartic acid. Arch Toxicol 2010; 85:43-9. [DOI: 10.1007/s00204-010-0555-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2009] [Accepted: 05/04/2010] [Indexed: 12/31/2022]
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Rosseti IB, Wagner C, Fachinetto R, Taube Junior P, Costa MS. Candida albicans growth and germ tube formation can be inhibited by simple diphenyl diselenides [(PhSe)2, (MeOPhSe)2, (p-Cl-PhSe)2, (F3CPhSe)2] and diphenyl ditelluride. Mycoses 2010; 54:506-13. [DOI: 10.1111/j.1439-0507.2010.01888.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Nascimento H, Belo L, Fernandes J, Rocha S, Quintanilha A, Santos-Silva A. In vitrostudies with ‘acatalasemic-like’ erythrocytes and hydrogen peroxide: attention to the formation of lysis resistant erythrocytes. Int J Lab Hematol 2010; 32:127-31. [PMID: 19170773 DOI: 10.1111/j.1751-553x.2008.01129.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H Nascimento
- Serviço Bioquímica, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
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Schiar VPP, dos Santos DB, Paixão MW, Nogueira CW, Rocha JBT, Zeni G. Human erythrocyte hemolysis induced by selenium and tellurium compounds increased by GSH or glucose: A possible involvement of reactive oxygen species. Chem Biol Interact 2009; 177:28-33. [DOI: 10.1016/j.cbi.2008.10.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Revised: 10/03/2008] [Accepted: 10/03/2008] [Indexed: 11/26/2022]
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12
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Fernandes JC, Eaton P, Nascimento H, Belo L, Rocha S, Vitorino R, Amado F, Gomes J, Santos-Silva A, Pintado ME, Malcata FX. Effects of Chitooligosaccharides on Human Red Blood Cell Morphology and Membrane Protein Structure. Biomacromolecules 2008; 9:3346-52. [DOI: 10.1021/bm800622f] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- João C. Fernandes
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Peter Eaton
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Henrique Nascimento
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Luís Belo
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Susana Rocha
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Rui Vitorino
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Francisco Amado
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Joana Gomes
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Alice Santos-Silva
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Manuela E. Pintado
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - F. Xavier Malcata
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
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Golombieski RM, Graichen DAS, Pivetta LA, Nogueira CW, Loreto ELS, Rocha JBT. Diphenyl diselenide [(PhSe)2] inhibits Drosophila melanogaster delta-aminolevulinate dehydratase (delta-ALA-D) gene transcription and enzyme activity. Comp Biochem Physiol C Toxicol Pharmacol 2008; 147:198-204. [PMID: 17936691 DOI: 10.1016/j.cbpc.2007.09.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2007] [Revised: 09/13/2007] [Accepted: 09/13/2007] [Indexed: 10/22/2022]
Abstract
The main objective of the present study was to compare the inhibitory effect of diphenyl diselenide (PhSe)(2) and Pb(2+) on mice and fruit fly delta-Aminolevulinate dehydratase (delta-ALA-D). Optimum pH was quite different for mice (pH 6.5) and flies (pH 8.5). At pH 8.5, the inhibitory potency of (PhSe)(2) was higher for the fruit flies (IC(50) 8.2 micromol/l) than for mice (IC(50) 19.5 micromol/l). Pb(2+) inhibited mice delta-ALA-D at pH 6.5 (IC(50) 6.2 micromol/l) and 8.5 (IC(50) 5.6 micromol/l) with higher potency than the fly enzyme (IC(50) 43.7 micromol/l). delta-ALA-D transcription was reduced by 15% in flies exposed to 0.3 mmol/kg (PhSe)(2), which is similar to the reduction observed in activity measured in the presence of dithiothreitol. The three-dimensional prediction by SWISS-PROT mouse and fly delta-ALA-D revealed differences in the number of hydrogen bonds and turns for the 2 enzymes. Sulfhydryl groups (-SH) that could be oxidized by (PhSe)(2) are conserved in the two sources of enzyme. Distinct responsiveness to pH, (PhSe)(2) and Pb(2+) of these enzymes may be related to subtle differences in tertiary or quaternary structure of mouse and fly delta-ALA-D. Furthermore, mechanism underlying enzyme inhibition after in vivo exposure seems to be different for Drosophila melanogaster and rodent enzymes.
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Affiliation(s)
- R M Golombieski
- Universidade Federal do Rio Grande do Sul, Departamento de Genética, Programa de Pós Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil.
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