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Pimentel MF, Damasceno ÉP, Jimenez PC, Araújo PFR, Bezerra MF, de Morais PCV, Cavalcante RM, Loureiro S, Lotufo LVC. Endocrine disruption in Sphoeroides testudineus tissues and sediments highlights contamination in a northeastern Brazilian estuary. Environ Monit Assess 2016; 188:298. [PMID: 27094055 DOI: 10.1007/s10661-016-5300-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 04/12/2016] [Indexed: 06/05/2023]
Abstract
In recent decades, considerable attention has been devoted to endocrine disruptor chemicals (EDC) and studies on fish feminization have increased throughout the years as a key signal for aquatic environmental contamination. The input of domestic sewage into water reservoirs is common in South American countries, especially in cities that experienced rapid population growths and unplanned urbanization. This study aimed at characterizing morphofunctional parameters of the tropical fish Sphoeroides testudineus and investigating the potential occurrence and effects of endocrine disruptors in the Pacoti River (Ceará, Brazil), often considered a reference site. After collection from the field, fish were measure/weighted and desiccated for gender identification (males, females, and undifferentiated), gonadal histology, and vitellogenin expression. From the biometric analysis, undifferentiated fish showed lower weight and length than female and male fish, although no differences in the condition index were observed. The gonadal weight of undifferentiated fish was significantly lower than those of females and males. Although this pattern was observed, gonadosomatic index (GSI) showed a different pattern, with differences being observed just between males and the other two groups (females and undifferentiated). Vitellogenin (VTG) expression was detected in many mature male and undifferentiated fish, indicating endocrine disruption. In addition, several EDCs (estrone, 17α-estradiol, 17β-estradiol, 17α-ethinylestradiol, diethylstilbestrol, and estriol) were identified and quantified in sediments from the sampling site. These results were unexpected and indicative that the Pacoti River is impaired by estrogenic contamination.
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Affiliation(s)
- Marcionília Fernandes Pimentel
- Laboratório de Ecotoxicologia Marinha, Instituto de Ciências do Mar (Labomar), Universidade Federal do Ceará, Av. Abolição 3207, Fortaleza, Ceará, 60125-120, Brazil.
| | - Évila Pinheiro Damasceno
- Laboratório de Ecotoxicologia Marinha, Instituto de Ciências do Mar (Labomar), Universidade Federal do Ceará, Av. Abolição 3207, Fortaleza, Ceará, 60125-120, Brazil
| | - Paula Christine Jimenez
- Departamento de Ciências do Mar, Universidade Federal de São Paulo, Av. Almirante Saldanha da Gama, 89, Santos, São Paulo, 11030-180, Brazil
| | - Pedro Filipe Ribeiro Araújo
- Centro de diagnóstico de enfermidades de organismos aquáticos - CEDECAM, Instituto de Ciências do Mar (Labomar), Universidade Federal do Ceará, Av. Abolição 3207, Fortaleza, Ceará, 60125-120, Brazil
| | - Marcielly Freitas Bezerra
- Laboratório de Avaliação de Contaminantes Orgânicos - LACOr, Instituto de Ciências do Mar (Labomar), Universidade Federal do Ceará, Av. Abolição 3207, Fortaleza, Ceará, 60125-120, Brazil
| | - Pollyana Cristina Vasconcelos de Morais
- Laboratório de Avaliação de Contaminantes Orgânicos - LACOr, Instituto de Ciências do Mar (Labomar), Universidade Federal do Ceará, Av. Abolição 3207, Fortaleza, Ceará, 60125-120, Brazil
| | - Rivelino Martins Cavalcante
- Laboratório de Avaliação de Contaminantes Orgânicos - LACOr, Instituto de Ciências do Mar (Labomar), Universidade Federal do Ceará, Av. Abolição 3207, Fortaleza, Ceará, 60125-120, Brazil
| | - Susana Loureiro
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Letícia Veras Costa Lotufo
- Laboratório de Ecotoxicologia Marinha, Instituto de Ciências do Mar (Labomar), Universidade Federal do Ceará, Av. Abolição 3207, Fortaleza, Ceará, 60125-120, Brazil
- Instituto de Ciências Biomédicas, Universidade de São Paulo, Av. Lineu Prestes 1524, Predio Biomedicas I, sala 213, Cidade Universitaria, São Paulo, São Paulo, 05508-900, Brazil
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Schaab EH, Crotti AEM, Iamamoto Y, Kato MJ, Lotufo LVC, Lopes NP. Biomimetic oxidation of piperine and piplartine catalyzed by iron(III) and manganese(III) porphyrins. Biol Pharm Bull 2010; 33:912-6. [PMID: 20460777 DOI: 10.1248/bpb.33.912] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Synthetic metalloporphyrins, in the presence of monooxygen donors, are known to mimetize various reactions of cytochrome P450 enzymes systems in the oxidation of drugs and natural products. The oxidation of piperine and piplartine by iodosylbenzene using iron(III) and manganese(III) porphyrins yielded mono- and dihydroxylated products, respectively. Piplartine showed to be a more reactive substrate towards the catalysts tested. The structures of the oxidation products were proposed based on electrospray ionization tandem mass spectrometry.
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Affiliation(s)
- Estela Hanauer Schaab
- Universidade de São Paulo, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Av. Café s/n, Ribeirão Preto-SP 14040-903, Brazil
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Regasini LO, Castro-Gamboa I, Silva DHS, Furlan M, Barreiro EJ, Ferreira PMP, Pessoa C, Lotufo LVC, de Moraes MO, Young MCM, Bolzani VDS. Cytotoxic guanidine alkaloids from Pterogyne nitens. J Nat Prod 2009; 72:473-476. [PMID: 19159272 DOI: 10.1021/np800612x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
As part of a bioprospecting program aimed at the discovery of potential anticancer drugs, two new guanidine-type alkaloids, nitensidines D and E (1, 2), and the known pterogynine (3), pterogynidine (4), and galegine (5), were isolated from the leaves of Pterogyne nitens. The structures of 1 and 2 were established on the basis of spectroscopic data interpretation. These compounds were tested against a small panel of human cancer cell lines. Compound 2 exhibited cytotoxicity for HL-60 (human myeloblastic leukemia) and SF-245 (human glioblastoma) cells.
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Affiliation(s)
- Luis Octávio Regasini
- Institute of Chemistry, Nucley of Bioassay, Biosynthesis and Ecophysiology of Natural Products, NuBBE, Sao Paulo State University, UNESP, Araraquara, SP, Brazil
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Ramos MESP, Cavalcanti BC, Lotufo LVC, de Moraes MO, Cerqueira EDMM, Pessoa C. Evaluation of mutagenic effects of formocresol: detection of DNA-protein cross-links and micronucleus in mouse bone marrow. ACTA ACUST UNITED AC 2008; 105:398-404. [PMID: 18206398 DOI: 10.1016/j.tripleo.2007.08.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2007] [Accepted: 08/01/2007] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The genotoxic potential of formocresol was assessed by comet assay on human peripheral blood lymphocytes and in vivo micronucleus in mice. STUDY DESIGN Peripheral blood lymphocytes, obtained from healthy donors, were exposed directly with different dilutions of formocresol for 45 minutes at 37 degrees C. To verify the possibility of formocresol to induce DNA-protein cross-links, treated lymphocytes were incubated with proteinase K. Micronucleus test was performed on male Swiss mice treated with several dilutions of formocresol by single intraperitoneal injection. After treatment, bone marrow was sampled 24 and 48 hours after formocresol administration. RESULTS Formocresol did not produce detectable DNA damage as evaluated by comet assay. However, after proteinase K exposure, a dose-dependent increase of DNA migration was observed. Formocresol induced a significant increase in micronucleus frequencies at the highest dilution only at 24 hours after administration. CONCLUSION Formocresol induced DNA-protein cross-links and an increased frequency of micronucleus.
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Moreira DRDM, Lima Leite AC, Pinheiro Ferreira PM, da Costa PM, Costa Lotufo LV, de Moraes MO, Brondani DJ, Pessoa CDO. Synthesis and antitumour evaluation of peptidyl-like derivatives containing the 1,3-benzodioxole system. Eur J Med Chem 2007; 42:351-7. [PMID: 17175071 DOI: 10.1016/j.ejmech.2006.10.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2006] [Accepted: 10/19/2006] [Indexed: 11/29/2022]
Abstract
In the scope of a research program aiming at the synthesis and pharmacological evaluation of novel possible antitumour prototype compounds, we described in this paper the synthesis of peptidyl-like derivatives containing the 1,3-benzodioxole system. The proliferation inhibitors tested against tumour cell lines identified the derivatives tyrosine (4f) and lysine (4 g) as the most active among them, presenting IC(50) values in micromolar range and are more active than Safrole. For the study on the embryonic development, Safrole did not show any selectivity in this latter assay, which indicates that Safrole acts as a 'cell cycle-nonspecific' inhibitory agent. However, compound 4f presented a fair antimitotic effect, mainly on third cleavage and blastulae stages (38% and 1.7% of normal development, at 10 microg/mL), suggesting a time-dependent activity and a 'cell cycle-specific' agent action. Neither derivatives revealed hemolytic action in assay with mouse erythrocytes.
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Affiliation(s)
- Diogo Rodrigo de Magalhães Moreira
- LabSINFA - Laboratory of Planning, Synthesis and Evaluation of Pharmaco, Department of Pharmaceutical Science, Health Sciences Center, Federal University of Pernambuco, 50740-520 Recife, PE, Brazil
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