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Toledo-Ibarra, G.A.; Díaz-Resendiz, K.J.G.; Pavón-Romero, L.; Rojas-García, A.E.; Medina-Díaz, I.M; Girón-Pérez, M.I.
Veterinary immunology and immunopathology, August 2016, 2016-Aug, 2016-08-00, 20160801, Letnik: 176Journal Article
Fish rearing under intensive farming conditions can be easily disturbed by pesticides, substances that have immunotoxic properties and may predispose to infections. Organophosphorus pesticides (OPs) are widely used in agricultural activities; however, the mechanism of immunotoxicity of these substances is unclear. The aim of this study was to evaluate the effect of diazinon pesticides (OPs) on the cholinergic system of immune cells as a possible target of OP immunotoxicity. We evaluated ACh levels and cholinergic (nicotinic and muscarinic) receptor concentration. Additionally, AChE activity was evaluated in mononuclear cells of Nile tilapia (Oreochromis niloticus), a freshwater fish mostly cultivated in tropical regions around the world. The obtained results indicate that acute exposure to diazinon induces an increase in ACh concentration and a decrease in nAChR and mAChR concentrations and AChE activity in fish immune cells, This suggests that the non-neuronal lymphocytic cholinergic system may be the main target in the mechanism of OP immunotoxicity. This study contributes to the understanding of the mechanisms of immunotoxicity of pollutants and may help to take actions for animal health improvement.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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