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| Registros recuperados : 5 | |
| 1. |  | OLIVEIRA, F. L. de; DORIA, H.; TEODORO, R. B.; RESENDE, F. V. Características agronômicas de cultivares de alho em Diamantina. Horticultura Brasileira, Brasília, DF, v. 28, n. 3, p. 355-359, jul./set. 2010.| Biblioteca(s): Embrapa Hortaliças. |
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| 2. | | TEODORO, R. B.; OLIVEIRA, F. L. de; DORIA, H.; SILVA, D. M. N. da; RESENDE, F. V. Estudo do comportamento de sete cultivares de alho em Diamantina-MG. Horticultura Brasíleira, Brasília, DF, v. 27, n. 2, p. S2541-S2546, ago. 2009. CD-ROM. Suplemento. Trabalho apresentado no 49. Congresso Brasileiro de Olericultura, Águas de Lindóia, SP.| Biblioteca(s): Embrapa Hortaliças. |
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| 3. | | ASSIS, H. C. S. de; SILVA, C. A. da; OBA, E. T.; PAMPLONA, J. H.; MELA, M.; DORIA, H. B.; GUILOSKI, I. C.; RAMSDORF, W.; CESTARI, M. M. Hematologic and hepatic responses of the freshwater fish Hoplias malabaricus after saxitoxin exposure. Toxicon, Oxford, v. 66, p. 25-30, 2013.| Biblioteca(s): Embrapa Amapá. |
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| 4. | | DORIA, H. O. S.; ALBERGARIA, N. M. M. S. de; BATISTA, J. de L; FERREIRA, R. J.; BORTOLI, S. A. de. Efeito do tratamento com vapor quente na mortalidade de larvas de moscas-das-frutas (Anastrepha spp.) e na qualidade de goiabas (Psidium guajava L.)1 Revista Brasileira de Fruticultura, Jaboticabal-SP, v.23, n.1, p.190-192, 2001| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 5 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
13/03/2014 |
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Data da última atualização: |
20/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ASSIS, H. C. S. de; SILVA, C. A. da; OBA, E. T.; PAMPLONA, J. H.; MELA, M.; DORIA, H. B.; GUILOSKI, I. C.; RAMSDORF, W.; CESTARI, M. M. |
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Afiliação: |
ELIANE TIE OBA YOSHIOKA, CPAF-AP. |
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Título: |
Hematologic and hepatic responses of the freshwater fish Hoplias malabaricus after saxitoxin exposure. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Toxicon, Oxford, v. 66, p. 25-30, 2013. |
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DOI: |
10.1016/j.toxicon.2013.01.012. |
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Idioma: |
Inglês |
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Conteúdo: |
The bioaccumulation of saxitoxins (STX) in the trophic chain, mainly in freshwater, are not completely known. This work aimed to elucidate the effects of STX on Hoplias malabaricus through trophic bioassay. The fish were fed once every five days with Astyanax sp. before being subjected to an intraperitoneal inoculation with the lysate of Cylindrospermopsis raciborskii culture containing 97% STX and 3% by neosaxitoxin and gonyautoxin during 20 days. The animal?s liver was assessed using biomarkers as activities of superoxide dismutase (SOD), catalase (CAT), glutathione S-transferase (GST), and glutathione peroxidase (GPx), and concentrations of reduced glutathione (GSH) and lipoperoxidation (LPO) and protein carbonylation (PCO). In the blood was analyzed the genotoxic and hematological parameters. The hepatosomatic index and the relative condition factor did not show a significant difference between the exposed and control groups. The values of mean corpuscular hemoglobin concentration and mean corpuscular hemoglobin increased in the STX group. The hepatic tissue from both groups exhibited a typical pattern that have been already described for most teleost fish. The results suggested the generation of reactive oxygen species, with increased activity of GPx and concentrations of LPO and GSH; whereas the specific activity of SOD decreased. However, no changes were observed in the CAT, PCO, and DNA damage. Although the STX effects are known as neurotoxic, this cyanotoxin caused liver biochemical alterations that can be considered ecologically relevant. MenosThe bioaccumulation of saxitoxins (STX) in the trophic chain, mainly in freshwater, are not completely known. This work aimed to elucidate the effects of STX on Hoplias malabaricus through trophic bioassay. The fish were fed once every five days with Astyanax sp. before being subjected to an intraperitoneal inoculation with the lysate of Cylindrospermopsis raciborskii culture containing 97% STX and 3% by neosaxitoxin and gonyautoxin during 20 days. The animal?s liver was assessed using biomarkers as activities of superoxide dismutase (SOD), catalase (CAT), glutathione S-transferase (GST), and glutathione peroxidase (GPx), and concentrations of reduced glutathione (GSH) and lipoperoxidation (LPO) and protein carbonylation (PCO). In the blood was analyzed the genotoxic and hematological parameters. The hepatosomatic index and the relative condition factor did not show a significant difference between the exposed and control groups. The values of mean corpuscular hemoglobin concentration and mean corpuscular hemoglobin increased in the STX group. The hepatic tissue from both groups exhibited a typical pattern that have been already described for most teleost fish. The results suggested the generation of reactive oxygen species, with increased activity of GPx and concentrations of LPO and GSH; whereas the specific activity of SOD decreased. However, no changes were observed in the CAT, PCO, and DNA damage. Although the STX effects are known as neurotoxic, this cyanotoxin caused ... Mostrar Tudo |
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Palavras-Chave: |
Cianotoxina; Cyanotoxin; Eutroficação; Genotoxicidade; Paralytic shellfish poison. |
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Thesagro: |
Peixe de água doce. |
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Thesaurus NAL: |
eutrophication; freshwater fish; genotoxicity. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/99078/1/CPAF-AP-2013-Hematologic-and-hepatic.pdf
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Marc: |
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008 2013 bl uuuu u00u1 u #d
024 7 $a10.1016/j.toxicon.2013.01.012.$2DOI
100 1 $aASSIS, H. C. S. de
245 $aHematologic and hepatic responses of the freshwater fish Hoplias malabaricus after saxitoxin exposure.$h[electronic resource]
260 $c2013
520 $aThe bioaccumulation of saxitoxins (STX) in the trophic chain, mainly in freshwater, are not completely known. This work aimed to elucidate the effects of STX on Hoplias malabaricus through trophic bioassay. The fish were fed once every five days with Astyanax sp. before being subjected to an intraperitoneal inoculation with the lysate of Cylindrospermopsis raciborskii culture containing 97% STX and 3% by neosaxitoxin and gonyautoxin during 20 days. The animal?s liver was assessed using biomarkers as activities of superoxide dismutase (SOD), catalase (CAT), glutathione S-transferase (GST), and glutathione peroxidase (GPx), and concentrations of reduced glutathione (GSH) and lipoperoxidation (LPO) and protein carbonylation (PCO). In the blood was analyzed the genotoxic and hematological parameters. The hepatosomatic index and the relative condition factor did not show a significant difference between the exposed and control groups. The values of mean corpuscular hemoglobin concentration and mean corpuscular hemoglobin increased in the STX group. The hepatic tissue from both groups exhibited a typical pattern that have been already described for most teleost fish. The results suggested the generation of reactive oxygen species, with increased activity of GPx and concentrations of LPO and GSH; whereas the specific activity of SOD decreased. However, no changes were observed in the CAT, PCO, and DNA damage. Although the STX effects are known as neurotoxic, this cyanotoxin caused liver biochemical alterations that can be considered ecologically relevant.
650 $aeutrophication
650 $afreshwater fish
650 $agenotoxicity
650 $aPeixe de água doce
653 $aCianotoxina
653 $aCyanotoxin
653 $aEutroficação
653 $aGenotoxicidade
653 $aParalytic shellfish poison
700 1 $aSILVA, C. A. da
700 1 $aOBA, E. T.
700 1 $aPAMPLONA, J. H.
700 1 $aMELA, M.
700 1 $aDORIA, H. B.
700 1 $aGUILOSKI, I. C.
700 1 $aRAMSDORF, W.
700 1 $aCESTARI, M. M.
773 $tToxicon, Oxford$gv. 66, p. 25-30, 2013.
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Embrapa Amapá (CPAF-AP) |
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