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27. | | MAIA, M. da S.; LUCENA, C. A. de O.; MOURA, C. E. B. de. Avaliação da membrana plasmática do espermatozoide caprino usando sondas fluorescentes e citometria de fluxo. Revista Brasileira de Reprodução Animal, v. 43, n. 2, p. 542, abr./jun. 2019. Edição dos Resumos do XXIII Congresso Brasileiro de Reprodução Animal, Gramado, RS, maio, 2019. Biblioteca(s): Embrapa Semiárido. |
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28. | | MAIA, M. da S.; REGO, M. M. T.; SILVA, J. G. M. da; MACIEL, F. C. Avaliação da composição do leite de cabras Moxotó, Canindé, SRD e anglonubiana criadas no Semi-Árido do Rio Grande do Norte. In: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 5; SIMPÓSIO NORDESTINO DE ALIMENTAÇÃO DE RUMINANTES, 11.; SIMPÓSIO SERGIPANO DE PRODUÇÃO ANIMAL, 1., 2008, Aracaju. Anais... Aracaju: Sociedade Nordestina de Produção Animal; Embrapa Tabuleiros Costeiros, 2008. 1 CD-ROM. Biblioteca(s): Embrapa Semiárido. |
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29. | | SOUZA, A. de S.; SMIDERLE, O. J.; MAIA, M. da S.; PEREIRA, G. S. Metodologia para superação de dormência de sementes de jatobá. In: CONGRESSO BRASILEIRO DE SEMENTES, 21., 2022, Curitiba. [resumos...] Informativo Abrates, v. 29, n. 4, p. 52, set. 2022. número especial. Biblioteca(s): Embrapa Roraima. |
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30. | | SICHERLE, C. C.; MAIA, M. da S.; BICUDO, S. D.; GREEN, R. E.; AZEVEDO, H. C. The effect of the addition of seminal plasma and antioxidants to frozen thawed ram semen. Reproduction in Domestic Animals, v. 43, n. 3, p. 170, 2008. Supplement, ref. P432. Edição dos Abstracts do 16. International Congress on Animal Reproduction, Budapest, jul. 2008. Biblioteca(s): Embrapa Semiárido; Embrapa Tabuleiros Costeiros. |
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33. | | SMIDERLE, O. J.; SOUZA, A. de S.; MAIA, M. da S.; LOPES, A. C. Biorreguladores em sementes de trigo BRS 264 na Amazônia Setentrional. In: CONGRESSO BRASILEIRO DE SEMENTES, 21., 2022, Curitiba. [resumos...] Informativo Abrates, v. 29, n. 4, p. 288, set. 2022. número especial. Biblioteca(s): Embrapa Roraima. |
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35. | | SOUZA, A. de S.; SMIDERLE, O. J.; MAIA, M. da S.; PEREIRA, G. S. Dose de máxima eficiência técnica de Acadian® , stimulate® e trichoderma spp. Na superação de dormência em sementes de jatobá. In: CONGRESSO BRASILEIRO DE SEMENTES, 21., 2022, Curitiba. [resumos...] Informativo Abrates, v. 29, n. 4, p. 55, set. 2022. número especial. Biblioteca(s): Embrapa Roraima. |
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39. | | MAIA, M. da S.; MEDEIROS, I. M. de; LIMA, C. A. C.; MAIA, F. S. P. Efeito da adição de antioxidante ao meio de congelação sobre a motilidade do espermatozóide caprino após a descongelação. Ciência Animal, Fortaleza, v. 22, n. 1, p. 445-347, 2012. Edição dos Anais do 6 Congresso Norte Nordeste de Reprodução Animal, Fortaleza, jun. 2012. Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Semiárido. |
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Registros recuperados : 78 | |
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Registro Completo
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
06/03/2015 |
Data da última atualização: |
06/03/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SICHERLE, C. C.; MAIA, M. da S.; BICUDO, S. D.; RODELLO, L.; AZEVEDO, H. C. |
Afiliação: |
C. C. SICHERLE, São Paulo State University, Faculty of Veterinary Medicine and Animal Science; MARCIANE DA SILVA MAIA, CPATSA; S. D. BICUDO, São Paulo State University, Faculty of Veterinary Medicine and Animal Science; L. RODELLO, São Paulo State University, Faculty of Veterinary Medicine and Animal Science; H. C. AZEVEDO, São Paulo State University, Faculty of Veterinary Medicine and Animal Science. |
Título: |
Lipid peroxidation and generation of hydrogen peroxide in frozen-thawed ram semen supplemented with catalase or Trolox. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Small Ruminant Research, v. 95, p. 144-149, 2011. |
Idioma: |
Inglês |
Conteúdo: |
Semen manipulation and cryopreservation-thaw proceduresmayaccelerate the generation of reactive oxygen species (ROS). Sperm exposure to large amounts of ROS has been shown to cause membrane lipid peroxidation and cellular injury to the sperm. The objective of this study was to overcome the ROS production in frozen-thawed ram semen by the addition of the antioxidants catalase or Trolox to semen following thawing. Frozen-thawed ram semen (100×106 sperm/straw) was supplemented with PBS (control group), 100g/ml catalase, or 100MTrolox/108 sperm (catalase and Trolox being dissolved in PBS) and incubated (37 ◦C) for 5 min. Under the experimental conditions used in this study, the catalase and Trolox antioxidants failed to protect the sperm from the spontaneous production of ROS. However, when lipid peroxidation was induced by iron (FeSO4), the addition of Trolox promoted a reduction (P < 0.05) in the formation of TBARS in the semen, compared to the control and catalase semen samples. The generation of TBARS and H2O2 occurred in the extender alone, without the presence of sperm cells. In conclusion, the addition of Trolox to frozen-thawed ram semen could be beneficial as it decreases the production of TBARS when oxidative stress is induced. It is possible that a longer incubation period could lead to different results. The concentration of catalase also needs to be further evaluated. The extender could contribute to the oxidative stress of sperm, as it is a source of ROS during the cryopreservation of semen. MenosSemen manipulation and cryopreservation-thaw proceduresmayaccelerate the generation of reactive oxygen species (ROS). Sperm exposure to large amounts of ROS has been shown to cause membrane lipid peroxidation and cellular injury to the sperm. The objective of this study was to overcome the ROS production in frozen-thawed ram semen by the addition of the antioxidants catalase or Trolox to semen following thawing. Frozen-thawed ram semen (100×106 sperm/straw) was supplemented with PBS (control group), 100g/ml catalase, or 100MTrolox/108 sperm (catalase and Trolox being dissolved in PBS) and incubated (37 ◦C) for 5 min. Under the experimental conditions used in this study, the catalase and Trolox antioxidants failed to protect the sperm from the spontaneous production of ROS. However, when lipid peroxidation was induced by iron (FeSO4), the addition of Trolox promoted a reduction (P < 0.05) in the formation of TBARS in the semen, compared to the control and catalase semen samples. The generation of TBARS and H2O2 occurred in the extender alone, without the presence of sperm cells. In conclusion, the addition of Trolox to frozen-thawed ram semen could be beneficial as it decreases the production of TBARS when oxidative stress is induced. It is possible that a longer incubation period could lead to different results. The concentration of catalase also needs to be further evaluated. The extender could contribute to the oxidative stress of sperm, as it is a source of ROS duri... Mostrar Tudo |
Palavras-Chave: |
Semen cryopreservation; Sêmen ovino congelado-descongelado. |
Thesagro: |
Catalase; Ovino; Produção animal. |
Thesaurus NAL: |
ANimal production; Lipid peroxidation. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02313naa a2200253 a 4500 001 2010784 005 2015-03-06 008 2011 bl uuuu u00u1 u #d 100 1 $aSICHERLE, C. C. 245 $aLipid peroxidation and generation of hydrogen peroxide in frozen-thawed ram semen supplemented with catalase or Trolox.$h[electronic resource] 260 $c2011 520 $aSemen manipulation and cryopreservation-thaw proceduresmayaccelerate the generation of reactive oxygen species (ROS). Sperm exposure to large amounts of ROS has been shown to cause membrane lipid peroxidation and cellular injury to the sperm. The objective of this study was to overcome the ROS production in frozen-thawed ram semen by the addition of the antioxidants catalase or Trolox to semen following thawing. Frozen-thawed ram semen (100×106 sperm/straw) was supplemented with PBS (control group), 100g/ml catalase, or 100MTrolox/108 sperm (catalase and Trolox being dissolved in PBS) and incubated (37 ◦C) for 5 min. Under the experimental conditions used in this study, the catalase and Trolox antioxidants failed to protect the sperm from the spontaneous production of ROS. However, when lipid peroxidation was induced by iron (FeSO4), the addition of Trolox promoted a reduction (P < 0.05) in the formation of TBARS in the semen, compared to the control and catalase semen samples. The generation of TBARS and H2O2 occurred in the extender alone, without the presence of sperm cells. In conclusion, the addition of Trolox to frozen-thawed ram semen could be beneficial as it decreases the production of TBARS when oxidative stress is induced. It is possible that a longer incubation period could lead to different results. The concentration of catalase also needs to be further evaluated. The extender could contribute to the oxidative stress of sperm, as it is a source of ROS during the cryopreservation of semen. 650 $aANimal production 650 $aLipid peroxidation 650 $aCatalase 650 $aOvino 650 $aProdução animal 653 $aSemen cryopreservation 653 $aSêmen ovino congelado-descongelado 700 1 $aMAIA, M. da S. 700 1 $aBICUDO, S. D. 700 1 $aRODELLO, L. 700 1 $aAZEVEDO, H. C. 773 $tSmall Ruminant Research$gv. 95, p. 144-149, 2011.
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