Endosulfan increases seric interleukin-2 like (IL-2L) factor and immunoglobulin M (IgM) of Nile tilapia (Oreochromis niloticus) challenged with Aeromona hydrophila

Téllez‐Bañuelos, Martha Cecilia; Santerre, Anne; Casas‐Solís, Josefina; Zaitseva, Galina

doi:10.1016/j.fsi.2009.11.017

Cited by 63 publications

(24 citation statements)

References 34 publications

(39 reference statements)

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“…Among fish pathogens, A. hydrophila has been responsible for large economic losses worldwide (Paniagua et al, 1990;Sahoo et al, 2008;Reyes-Becerril et al, 2011). This bacterium is considered a secondary opportunistic pathogen due to promotion of disease in immune suppressed fish (Tellez et al, 2010). Several studies have already applied this pathogen injection as an effective mechanism of fish immune responses modification, since the fish innate defense system can be triggered in an unspecific way by extracellular and intracellular microorganism compounds as well as toxins of A. hydrophila (Rodríguez et al, 2008;Sahoo et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Leukocytes respiratory burst activity as indicator of innate immunity of pacu Piaractus mesopotamicus

et al. 2013

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The present study evaluated the assay to quantify the respiratory burst activity of blood leukocytes of pacu as an indicator of the innate immune system, using the reduction of nitroblue tetrazolium (NBT) to formazan as a measure of the production of reactive oxygen species (ROS). In order to assess the accuracy of the assay, fish were challenged by Aeromonas hydrophila and sampled one week after challenge. The A. hydrophila infection increased the leukocyte respiratory burst activity. The protocol showed a reliable and easy assay, appropriate to determine the respiratory burst activity of blood leukocytes of pacu, a neotropical fish, in the present experimental conditions. Keywords: immune methodology, fish immunology, cellular immunity. Atividade respiratória de leucócitos como indicador de imunidade inata de pacu (Piaractus mesopotamicus)Resumo O presente estudo avaliou o ensaio para quantificar a atividade respiratória dos leucócitos do sangue de pacu como um indicador do sistema imune inato, usando a redução do nitroazul tetrazólio (NBT) a formazan como medida da produção de espécies reativas de oxigênio (EROs). Para avaliar a precisão do ensaio, peixes foram desafiados por Aeromonas hydrophila e amostrados uma semana após o desafio. A infecção com A. hydrophila aumentou a atividade respiratória dos leucócitos. O protocolo se mostrou confiável e de fácil aplicação, apropriado para determinar a atividade respiratória de leucócitos do sangue do pacu, peixe neotropical, nas condições experimentais apresentadas.Palavras-chave: metodologia, imunidade de peixe, imunidade mediada por células.

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Section: Introductionmentioning

confidence: 99%

Leukocytes respiratory burst activity as indicator of innate immunity of pacu Piaractus mesopotamicus

et al. 2013

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“…Así, se ha demostrado que animales expuestos a diferentes pesticidas poseen una mayor susceptibilidad y menor capacidad de respuesta frente a infecciones experimentales con Aeromonas hydrophila (Tellez-Bañuelos et al, 2010;Kreutz et al, 2010). Kreutz et al, (2010) demostraron que la exposición subletal a glifosato incrementa la susceptibilidad de Rhamdia quelen a la infección experimental con A. hydrophila, lo que está acorde con lo hallado en este trabajo.…”

Section: Discussionunclassified

“…Algunos animales mostraron congestión y hemorragias petequiales en las narinas, compatibles con el cuadro clínico de septicemia hemorrágica descrito por otros autores (Tellez-Bañuelos, et al, 2010;Kreutz, et al, 2010). En los dos tratamientos, incluyendo el grupo control, se evidenció nado en espiral así como patrones erráticos de nado.…”

Section: Ensayo De Desafíounclassified

Efectos del Roundup® y Cosmoflux® 411f sobre la respuesta inmune frente al desafio con Aeromonas hydrophila en cachama blanca (Piaractus brachypomus)

et al. 2014

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ResumenLos herbicidas y pesticidas han mostrado afectar organismos no blancos de su acción. Dichos efectos incluyen alteración endocrina, así como teratogénesis, lesiones en sistema respiratorio, digestivo, inmune y nervioso. Particularmente, se ha documentado que las alteraciones del sistema inmune pueden generar efectos importantes sobre la capacidad del pez para sobrevivir en el medio. El presente trabajo evaluó el efecto de la exposición subletal al Roundup® (glifosato) y al surfactante acompañante (Cosmoflux® 411F) sobre la respuesta inmune al desafío bacteriano con Aeromonas hydrophila en cachama blanca (Piaractus brachypomus). Se evidenció que el Roundup®, así como la mezcla de este con el surfactante, disminuyen la resistencia de los animales al desafío con la bacteria y que el periodo de latencia es menor en los animales expuestos respecto al control. De la misma manera se evidenció un aumento de la actividad oxidativa en los animales expuestos. Los animales expuestos a las concentraciones subletales de glifosato, así como a la mezcla con el surfactante evidenciaron una mayor susceptibilidad frente a la infección experimental con A. hydrophila. Dichos efectos fueron mayores en el grupo expuesto a la mezcla, por lo cual se atribuye un efecto sinérgico ejercido por el surfactante en la misma.Palabras clave: cachama blanca, Cosmoflux® 411F, infección experimental, glifosato, inmunotoxicología, respuesta inmune Efectos del Roundup® y Cosmoflux® 411f sobre la respuesta inmune frente al desafio con Aeromonas hydrophila en cachama blanca (Piaractus brachypomus) 38 AbstractIt has been showed herbicides affect organisms which were not the target for their action. Such effects would include endocrine alteration, as well as teratogenesis and damage to the respiratory, digestive, and immune and nervous systems. It has been documented that alterations to the immune system could produce significant effects on a fish's ability to survive in its environment. The present work was aimed at evaluating the effect of sub-lethal exposure to Roundup® (glyphosate) and an accompanying surfactant (Cosmoflux® 411F) on the immune response to challenging white cachama/red-bellied pacu (Piaractus brachypomus) with the heterotrophic, Gram-negative, rod-shaped bacteria Aeromonas hydrophila. It was shown that Roundup®, as well as a mixture of this with the surfactant, reduced the animals' resistance to challenge with the bacteria and that the latency period was shorter in exposed animals regarding control. Likewise, increased oxidative activity was observed in the exposed animals. Animals exposed to sub-lethal concentrations of glyphosate, as well as the mixture with the surfactant, had greater susceptibility to experimental infection with A. hydrophila. Such effects were greater in the group exposed to the mixture, there by attributing a synergic effect to the surfactant. Key words:White cachama/red-bellied pacu, Cosmoflux® 411F, experimental infection, glyphosate, immunotoxicology, immune response. ResumoOs agro-toxicos tem demostra...

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“…However, while the C-reactive protein levels in serum were increased the leucocyte production of IFN was unchanged (Winkelhake et al, 1983). In common carp, TCDD injection produced histological alterations including increase of melano-macrophage centres and reduction of lymphocyte numbers (van der Weiden et al, 1994). Further studies have also evaluated fish tissue alterations and CYP1A staining patterns have been described i n E u r o p e a n f l o u n d e r ( Platichthys flesus) and gilthead seabream (Grinwis et al, 2000;Ortiz-Delgado & Sarasquete, 2004).…”

Section: Organochlorinated (Ocs) Contaminantsmentioning

confidence: 99%

Immunotoxicological Effects of Environmental Contaminants in Teleost Fish Reared for Aquaculture

Cuesta¹,

Meseguer²,

Esteban³

2011

Pesticides in the Modern World - Risks and Benefits

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Endosulfan increases seric interleukin-2 like (IL-2L) factor and immunoglobulin M (IgM) of Nile tilapia (Oreochromis niloticus) challenged with Aeromona hydrophila

Cited by 63 publications

References 34 publications

Leukocytes respiratory burst activity as indicator of innate immunity of pacu Piaractus mesopotamicus

Leukocytes respiratory burst activity as indicator of innate immunity of pacu Piaractus mesopotamicus

Efectos del Roundup® y Cosmoflux® 411f sobre la respuesta inmune frente al desafio con Aeromonas hydrophila en cachama blanca (Piaractus brachypomus)

Immunotoxicological Effects of Environmental Contaminants in Teleost Fish Reared for Aquaculture

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