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首页> 外文期刊>Environmental Pollution >Histopathological effects, responses of oxidative stress, inflammation, apoptosis biomarkers and alteration of gene expressions related to apoptosis, oxidative stress, and reproductive system in chlorpyrifos-exposed common carp (Cyprinus carpio L.)
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Histopathological effects, responses of oxidative stress, inflammation, apoptosis biomarkers and alteration of gene expressions related to apoptosis, oxidative stress, and reproductive system in chlorpyrifos-exposed common carp (Cyprinus carpio L.)

机译:毒死rif暴露鲤的组织病理学效应,氧化应激反应,炎症,凋亡生物标志物以及与细胞凋亡,氧化应激和生殖系统相关的基因表达改变

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In this study, we aimed to identify the toxic effects of chlorpyrifos exposure on the tissues of common carp. For this purpose, we evaluated histopathological changes in the brain, gills, liver, kidney, testis, and ovaries after 21 days of chlorpyrifos exposure. Activation of 8-OHdG, cleaved caspase-3, and iNOS were assesed by immunofluorescence assay in chlorpyrifos-exposed brain and liver tissue. Additionally, we measured the expression levels of caspase-3, caspase-8, iNOS, MT1, CYP1A, and CYP3A genes in chlorpyrifos-exposed brain tissue, as well as the expression levels of FSH and LH genes in chlorpyrifos-exposed ovaries, using qRT-PCR. We observed severe histopathological lesions, including inflammation, degeneration, necrosis, and hemorrhage, in the evaluated tissues of common carp after both high and low levels of exposure to chlorpyrifos. We detected strong and diffuse signs of immunofluorescence reaction for 8-OHdG, iNOS, and cleaved caspase-3 in the chlorpyrifos-exposed brain and liver tissues. Furthermore, we found that chlorpyrifos exposure significantly upregulated the expressions of caspase-3, caspase-8, iNOS, and MTI, and also moderately upregulated CYP1A and CYP3A in the brain tissue of exposed carp. We also noted downregulation of FSH and LH gene expressions in chlorpyrifos-exposed ovary tissues. Based on our results, chlorpyrifos toxication caused crucial histopathological lesions in vital organs, induced oxidative stress, inflammation, and apoptosis in liver and brain tissues, and triggered reproductive sterility in common carp. Therefore, we can propose that chlorpyrifos toxication is highly dangerous to the health of common carp. Moreover, chlorpyrifos pollution in the water could threaten the common carp population. Use of chlorpyrifos should be restricted, and aquatic systems should be monitored for chlorpyrifos pollution. (C) 2017 Elsevier Ltd. All rights reserved.
机译:在这项研究中,我们旨在确定毒死rif暴露对鲤鱼组织的毒性作用。为此,我们评估了毒死rif暴露21天后大脑,腮,肝脏,肾脏,睾丸和卵巢的组织病理学变化。通过毒死rif暴露的脑和肝组织中的免疫荧光分析评估了8-OHdG,裂解的caspase-3和iNOS的激活。此外,我们测量了毒死rif暴露的脑组织中caspase-3,caspase-8,iNOS,MT1,CYP1A和CYP3A基因的表达水平,以及毒死rif暴露的卵巢中FSH和LH基因的表达水平,定量RT-PCR。在高毒和低毒暴露于毒死rif后,在鲤鱼的被评估组织中,我们观察到严重的组织病理学损害,包括炎症,变性,坏死和出血。我们在暴露于毒死rif的大脑和肝脏组织中检测到8-OHdG,iNOS和裂解的caspase-3的强烈和弥漫性免疫荧光反应迹象。此外,我们发现毒死rif暴露显着上调了鲤鱼脑组织中caspase-3,caspase-8,iNOS和MTI的表达,还适度上调了CYP1A和CYP3A的表达。我们还注意到暴露于毒死-的卵巢组织中FSH和LH基因表达的下调。根据我们的结果,毒死rif中毒引起重要器官的组织病理学损害,在肝和脑组织中引起氧化应激,炎症和细胞凋亡,并引发鲤鱼的生殖不育。因此,我们可以认为毒死rif中毒对鲤鱼的健康非常危险。此外,水中毒死rif的污染可能威胁鲤鱼种群。应当限制使用毒死rif,并应监测水生系统对毒死rif的污染。 (C)2017 Elsevier Ltd.保留所有权利。

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