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Vasconcellos AF, Silva JMF, de Oliveira AS, Prado PS, Nagata T, Resende RO. Genome sequences of chikungunya virus isolates circulating in midwestern Brazil. Arch Virol 2019; 164:1205-1208. [PMID: 30729309 DOI: 10.1007/s00705-019-04174-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 01/16/2019] [Indexed: 12/17/2022]
Abstract
Chikungunya virus (CHIKV) is a reemerging arbovirus of the family Togaviridae that causes CHIKV fever, a disease that can extend from weeks to years depending on whether clinical signs of arthralgia persist. CHIKV is mainly transmitted by Aedes aegypti mosquitoes and possibly reached the Americas in 2013, causing an outbreak in Brazil in 2015. So far, two evolutionary lineages of CHIKV have been reported in Brazil: the Asian and the East-Central-South African (ECSA) lineages. In this study, six CHIKV isolates circulating in midwestern Brazil (Mato Grosso state) were isolated from patient sera, and their complete genomes were sequenced using a high-throughput sequencing platform. All of these isolates shared high nucleotide sequence similarity with CHIKV isolates from northeastern Brazil and were found to belong to the ECSA lineage. These CHIKV isolates did not contain the A226V or L210Q mutations that are associated with increased transmissibility by A. albopictus, suggesting that the CHIKV isolates circulating in midwestern Brazil are predominantly transmitted by A. aegypti.
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Affiliation(s)
- A F Vasconcellos
- Departamento de Biologia Celular, Bloco K Térreo, Instituto de Biologia, Universidade de Brasília Campus Darcy Ribeiro, Brasília, DF, CEP 70910-970, Brazil
| | - J M F Silva
- Departamento de Biologia Celular, Bloco K Térreo, Instituto de Biologia, Universidade de Brasília Campus Darcy Ribeiro, Brasília, DF, CEP 70910-970, Brazil
| | - A S de Oliveira
- Departamento de Biologia Celular, Bloco K Térreo, Instituto de Biologia, Universidade de Brasília Campus Darcy Ribeiro, Brasília, DF, CEP 70910-970, Brazil
| | - P S Prado
- Laboratório Central de Saúde Pública do Distrito Federal (LACEN-DF), Setor de Grandes Áreas Norte, Quadras 601, Blocos Oe P., Brasília, DF, CEP 70830-010, Brazil
| | - T Nagata
- Departamento de Biologia Celular, Bloco K Térreo, Instituto de Biologia, Universidade de Brasília Campus Darcy Ribeiro, Brasília, DF, CEP 70910-970, Brazil
| | - R O Resende
- Departamento de Biologia Celular, Bloco K Térreo, Instituto de Biologia, Universidade de Brasília Campus Darcy Ribeiro, Brasília, DF, CEP 70910-970, Brazil.
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Prado PS, Pinheiro APB, Weber AA, Bazzoli N, Rizzo E. Expression patterns and immunolocalisation of IGF-I and IGF-II in male and female gonads of the Neotropical characid fish Astyanax fasciatus. Fish Physiol Biochem 2019; 45:167-176. [PMID: 30143929 DOI: 10.1007/s10695-018-0550-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 04/11/2018] [Accepted: 08/13/2018] [Indexed: 06/08/2023]
Abstract
The insulin-like growth factor (IGF) system plays important roles in fish reproduction, but the expression pattern and cellular location of IGF-I and IGF-II during gonadal maturation are uncertain. The present study reports a stage-specific assessment of gonadal expression levels and immunolocalisation of IGF-I and IGF-II in Astyanax fasciatus, a characid fish from South America. Adult fish in different maturity stages were caught in the Furnas Reservoir, Grande River, Brazil. Gonad samples were processed for histology, immunohistochemistry, and ELISA for IGF-I and IGF-II. Ovarian levels of IGF-I were low during ripening and ripe stages, higher in totally spent, and then decreased in resting. Levels of IGF-II increased during ovarian maturation, reaching significantly higher values at stage totally spent. In males, IGF-I levels followed gonadal maturation, with higher values in ripening and ripe stages, whereas IGF-II levels showed higher values in stage ripening and partially spent. A positive correlation was found between IGF-I and gonadosomatic index (GSI) for males (r = 0.59), while females showed a negative correlation (r = - 0.43), but IGF-II showed no correlation to GSI. IGF-I was expressed mainly in oogonia nests whereas IGF-II stained the follicular cells in the perinucleolar follicles, cortical vesicles in the previtellogenic follicles, and oogonia nests. In males, IGF-I was evident in spermatogonia and spermatocytes while IGF-II stained Sertoli cells surrounding spermatids cysts and spermatogonia in late stages. Together, these findings support a hypothesis that the balance between IGF-I and IGF-II levels is important in the regulation of gonad maturation in Astyanax fasciatus.
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Affiliation(s)
- Paula Suzanna Prado
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, C.P. 486, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Ana Paula Barbosa Pinheiro
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, C.P. 486, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - André Alberto Weber
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, C.P. 486, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Nilo Bazzoli
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, C.P. 486, Belo Horizonte, Minas Gerais, 31270-901, Brazil
- Programa de Pós-Graduação em Zoologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, PUC Minas, Belo Horizonte, Minas Gerais, 30535-610, Brazil
| | - Elizete Rizzo
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, C.P. 486, Belo Horizonte, Minas Gerais, 31270-901, Brazil.
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Weber AA, Moreira DP, Melo RMC, Vieira ABC, Prado PS, da Silva MAN, Bazzoli N, Rizzo E. Reproductive effects of oestrogenic endocrine disrupting chemicals in Astyanax rivularis inhabiting headwaters of the Velhas River, Brazil. Sci Total Environ 2017; 592:693-703. [PMID: 28341464 DOI: 10.1016/j.scitotenv.2017.02.181] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 10/21/2016] [Revised: 01/20/2017] [Accepted: 02/22/2017] [Indexed: 06/06/2023]
Abstract
The Velhas River is the most polluted river in the state of Minas Gerais, south-eastern Brazil. Due to its historical and environmental relevance, the aim of this study was to evaluate the effects of oestrogenic endocrine disruptors on the reproduction of the lambari Astyanax rivularis, a small-sized species found in headwaters of the São Francisco River basin. Quarterly field samplings were carried out during a reproductive cycle in three streams of the upper Velhas River: S1 (reference site) and S2 and S3 (sites contaminated by untreated sewage). The main oestrogenic compounds were evaluated in water using HPLC/MS. Molecular, histological and reproductive biomarkers were assessed in liver and gonad. The results showed higher average concentrations of oestradiol (>200ng/l) in S2 and S3, oestrone (>250ng/l) in S2 as well as oestriol (>200ng/l), bisphenol A (>190ng/l), and nonylphenol (>600ng/l) in S3 compared to S1 (<70ng/l for all compounds). In S2 and S3, there was an increase in the proportion of females, higher ELISA levels of vitellogenin (Vtg) and proteins of the zona radiata (Zrp) in liver males. Insulin-like growth factor (IGF-I) levels were lower in S2 males, which also had a smaller body size, a smaller seminiferous tubule diameter, a higher proportion of spermatogonia, and lower proportion of spermatozoa in relation to S1. Histopathological analyses detected an increase in yolk deficient oocytes and over-ripening in the contaminated sites, and these alterations were associated to a reduction of hepatic Vtg levels and a delay in spawning, respectively. Intersex specimens with perinucleolar follicles in a multifocal distribution in the testis were detected in S2 and S3. These results indicate that chronic exposure to oestrogenic compounds induced endocrine disruption that may affect wild populations of A. rivularis in the Velhas River.
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Affiliation(s)
- André Alberto Weber
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P. 486, 30161-970, Minas Gerais, Brazil
| | - Davidson Peruci Moreira
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P. 486, 30161-970, Minas Gerais, Brazil
| | - Rafael Magno Costa Melo
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P. 486, 30161-970, Minas Gerais, Brazil
| | - Augusto Bicalho Cruz Vieira
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P. 486, 30161-970, Minas Gerais, Brazil
| | - Paula Suzanna Prado
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P. 486, 30161-970, Minas Gerais, Brazil
| | - Mirra Angelina Neres da Silva
- Departamento of Química, Universidade Federal de Minas Gerais, Belo Horizonte, C.P. 486, 30161-970, Minas Gerais, Brazil
| | - Nilo Bazzoli
- Programa de Pós-graduação em Zoologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, PUC Minas, Belo Horizonte 30535-610, Minas Gerais, Brazil
| | - Elizete Rizzo
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P. 486, 30161-970, Minas Gerais, Brazil.
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Honorato-Sampaio K, Prado PS, Sato Y, Bazzoli N, Rizzo E. Comparative morphology of the oocyte surface and early development in four characiformes from the São Francisco River, Brazil. J Morphol 2015; 276:1258-72. [DOI: 10.1002/jmor.20416] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 05/24/2015] [Accepted: 06/12/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Kinulpe Honorato-Sampaio
- Departamento De Morfologia; Instituto De Ciências Biológicas, Universidade Federal De Minas Gerais, UFMG; Belo Horizonte Minas Gerais Brasil
| | - Paula Suzanna Prado
- Departamento De Morfologia; Instituto De Ciências Biológicas, Universidade Federal De Minas Gerais, UFMG; Belo Horizonte Minas Gerais Brasil
| | - Yoshimi Sato
- Estação De Hidrobiologia E Piscicultura De Três Marias, Companhia De Desenvolvimento Dos Vales Do São Francisco E Parnaíba CODEVASF; Três Marias Minas Gerais Brasil
| | - Nilo Bazzoli
- Departamento De Morfologia; Instituto De Ciências Biológicas, Universidade Federal De Minas Gerais, UFMG; Belo Horizonte Minas Gerais Brasil
- Programa De Pós-Graduação Em Zoologia De Vertebrados, Pontifícia Universidade Católica De Minas Gerais, PUC Minas; Belo Horizonte Minas Gerais Brasil
| | - Elizete Rizzo
- Departamento De Morfologia; Instituto De Ciências Biológicas, Universidade Federal De Minas Gerais, UFMG; Belo Horizonte Minas Gerais Brasil
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Jorge SDC, Abboud CS, Prado PS, Assef JE, Arnoni AS, Piegas LS, Sousa JE. [Infectious endocarditis in a drug addict]. Arq Bras Cardiol 1993; 60:25-30. [PMID: 8240037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
PURPOSE To compare two groups of patients with infective endocarditis, the drug addicts and non-drug addicts. We attempted to set particularities among the various aspects that involve the patient with endocarditis, due to the concurrent chronic use of cocaine intravenously. METHODS Twenty nine patients, group B, whose clinical diagnose was compatible with infective endocarditis, with risk factor of parenteral toxicomania by cocaine were treated at Institute "Dante Pazzanese de Cardiologia" and Hospital "Emilio Ribas" in São Paulo, from 1984 to 1990. The data obtained for etiological agents, previous cardiac pathology, affected heart structures, affected heart side and clinical-surgical evolutions of group B were compared to group A (193 patients), which was also composed of patients with endocarditis, without chronic endovenous use of cocaine antecedent. The data obtained were analysed comparatively according to the chi square with Yates correction. RESULTS Male gender (89.7%) was predominate in group B towards group A (57.0%); (p < 0.01). Previous cardiopathy, either congenital or acquired, as antecedent proning to endocarditis, was found in 89.1% of patients in group A, significantly higher than 17.2% of patients group B (p < 0.001). Staphylococcus aureus was the most frequent agent, which accounted for endocarditis of group B in 86.4% of the cases, significantly higher when compared to 23.9% of cases of group A (p < 0.01). Streptococcus viridans was the most frequent etiological agent for endocarditis of group A (44.8%), significantly higher than group B (4.5%), (p < 0.01). In concern to the affected structures, the tricuspid valve was most affected in group B (65.5%), significantly higher than group A (4.7%) p < 0.001. The mitral valve was significantly more affected in group A (45.1%) in comparison to group B (6.9%), (p < 0.05). In group A 82 patients (42.5%) required surgical treatment and this occurred in 3 patients of group b (10.3%), (p < 0.05). No significant statistical difference was found as for the general mortality (clinical and surgical) in both groups. CONCLUSION a) presence of previous cardiac disease was lower suggesting permanent contamination blood flow by pathologic agents, mainly of those found in the skin as S. aureus; b) right side of the heart is most frequently affected, specially the tricuspid valve even without previous damage.
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Affiliation(s)
- S do C Jorge
- Instituto Dante Pazzanese de Cardiologia, São Paulo
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Chaib E, de Oliveira CM, Prado PS, Santana LL, Toloi Júnior N, de Mello JB. Obstructive jaundice caused by blastomycosis of the lymph nodes around the common bile duct. Arq Gastroenterol 1988; 25:198-202. [PMID: 3268076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A case of obstructive jaundice due to granulomatous blastomycosis is presented. The patient had complained of abdominal pain in the right hypochondrium and jaundice. During hospitalization, the laboratory tests showed evidence of obstructive jaundice and complementary tests a distended gallbladder, dilatation of the intra and extrahepatic bile ducts with enlarged lymph nodes of the hepatic hilus. During the operation a cholestatic liver, distended gallbladder and enlarged lymph nodes around the common bile duct were found. Histopathology of the lymph nodes revealed South American blastomycosis. The medical management consisted of amphotericin B. At present the patient is alive and well.
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Affiliation(s)
- E Chaib
- Department of Gastroenterology, School of Medicine, University of São Paulo, Brazil
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