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Lombardi I, Zanini MA, Ferrasi AC, Clara CA, Vieira Reis RM, Feijó A. 374 Cell Cycle as a Biological Marker of Aggressiveness and Therapeutic Target in Meningiomas. Neurosurgery 2023. [DOI: 10.1227/neu.0000000000002375_374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
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Duarte B, Cavagna R, Silva A, Silva E, Feijó A, Duval V, Santos W, Silva F, De Marchi P, Reis RM, Oliveira R, Leal LF. PP.16 Evaluation of Pathogenicity and in Silico Analysis of HERC2 Variants in Non-Small Cell Lung Cancer. J Thorac Oncol 2023. [DOI: 10.1016/j.jtho.2023.01.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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Gonçalves C, Marins AT, do Amaral AMB, Nunes MEM, Müller TE, Severo E, Feijó A, Rodrigues CCR, Zanella R, Prestes OD, Clasen B, Loro VL. Ecological impacts of pesticides on Astyanax jacuhiensis (Characiformes: Characidae) from the Uruguay river, Brazil. Ecotoxicol Environ Saf 2020; 205:111314. [PMID: 32956866 DOI: 10.1016/j.ecoenv.2020.111314] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 03/25/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
Brazilian freshwater ecosystems are continuously exposed to pesticides and domestic sewage. The Uruguay River was chosen for this study because of its international importance, as it flows through Brazil, Argentina, and Uruguay. It receives contaminants such as pesticides and domestic residues. Thus, the aim of this study to assess the accumulation of pesticides in muscle of the fish Astyanax jacuhiensis, its biochemical responses, and the presence of pesticides in water. In total, seven pesticides were registered in water from both river sites. Eight pesticides were detected in fish muscle. The biochemical responses showed that brain lipid peroxidation (LPO) and protein carbonyl (PC) in A. jacuhiensis were higher in the summer. Muscle showed the highest LPO levels in the spring and the highest PC in the summer. Liver LPO and PC levels were higher in the spring and summer. In the gills, the PC was higher in the spring and the LPO in the spring and winter. In the brain and in the gills, glutathione-S-transferase activity was high in the summer and autumn. Catalase activity was lower during the winter and spring. Non-protein thiol (NPSH) levels were lower in the brain in the winter and spring. Muscle tissue showed lower NPSH in the winter (site 1). Liver NPSH showed increased levels in liver in the spring and winter (site 2). The biochemical results clearly is related to pesticides and/or to the presence of other contaminants in the water such as metals or domestic sewage. The accumulation of pesticides in fish muscle added evidence that pesticides have been used in the area surrounding the Uruguay River. In conclusion, the biomarkers assayed in the present study could be used in future investigations considering other sampling sites along Uruguay River.
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Affiliation(s)
| | | | | | - Mauro Eugênio Medina Nunes
- Programa de Pós-Graduação Em Ciências Biológicas, Bioquímica Toxicológica, Laboratório de Toxicologia Aquática, Universidade Federal de Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Talise Ellwanger Müller
- Programa de Pós-Graduação Em Ciências Biológicas, Bioquímica Toxicológica, Laboratório de Toxicologia Aquática, Universidade Federal de Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Eduardo Severo
- Programa de Pós-Graduação Em Biodiversidade Animal, Brazil
| | - Adriane Feijó
- Programa de Pós-Graduação Em Biodiversidade Animal, Brazil
| | - Cíntia C R Rodrigues
- Programa de Pós-Graduação Em Ciências Biológicas, Bioquímica Toxicológica, Laboratório de Toxicologia Aquática, Universidade Federal de Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Renato Zanella
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Universidade Federal de Santa Maria, 97105.900, Santa Maria, RS, Brazil
| | - Osmar Damian Prestes
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Universidade Federal de Santa Maria, 97105.900, Santa Maria, RS, Brazil
| | - Barbara Clasen
- Departmento de Ciências Ambientais, Universidade Estadual Do Rio Grande Do Sul, 98600-000, Três Passos, RS, Brazil
| | - Vania Lucia Loro
- Programa de Pós-Graduação Em Biodiversidade Animal, Brazil; Programa de Pós-Graduação Em Ciências Biológicas, Bioquímica Toxicológica, Laboratório de Toxicologia Aquática, Universidade Federal de Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil.
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Garbino GST, Rezende GC, Fernandes–Ferreira H, Feijó A. Reconsidering mammal extinctions in the Pernambuco Endemism Center of the Brazilian Atlantic Forest. Anim Biodiv Conserv 2018. [DOI: 10.32800/abc.2018.41.0175] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Silva S, Dohmann H, Perin E, Rutherford C, Sousa A, Souza P, Gonzales C, Falcão C, Feijó A, Dohmann H. Crit Care 2003; 7:P83. [DOI: 10.1186/cc2279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Alvarez-Santín C, Sica A, Rodríguez M, Feijó A, Garrido G. Microglandular hyperplasia of the uterine cervix. Cytologic diagnosis in cervical smears. Acta Cytol 1999; 43:110-3. [PMID: 10097694 DOI: 10.1159/000330961] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [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: 11/19/2022]
Abstract
OBJECTIVE To identify cytomorphologic features specific to microglandular hyperplasia (MGH) in cervical cytologic smears. STUDY DESIGN Twenty-four cervical smears from 24 patients obtained before the histologic diagnosis of MGH made on colposcopically directed biopsies during a period of two years (1995-1997) were evaluated. RESULTS Of cases with MGH, 13/24 (54%) showed the presence of bidimensional or tridimensional cellular clusters made up of cubic or cylindrical glandular cells with vacuolated cytoplasm; cells with dense cytoplasm, basaloid in appearance, corresponding to immature squamous metaplasia; and subcylindrical reserve cells with small, round nuclei and scant cytoplasm. Clusters showed microlumina or fenestrated spaces, preserved polarity and absence of nuclear peripheral dispersion. In the control group these cellular clusters were found in 6/100 (6%). Statistical analysis (chi 2) showed a strong, highly significant association (P < 0.001) of the cytologic parameters selected and the histologic diagnosis of MGH. CONCLUSION Until now, no specific cytologic parameters were described for MGH. This study underscored the value of cytomorphologic parameters described for typical cellular clusters showing microlumina or fenestrated spaces with shared party walls and an admixture of glandular cells, and immature squamous metaplastic and subcylindrical reserve cells in the cytologic diagnosis of MGH.
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Affiliation(s)
- C Alvarez-Santín
- Department of Pathology, Facultad de Medicina, Universitad de la República, Montevideo, Uruguay
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