首页> 外文期刊>Neurochemistry International: The International Journal for the Rapid Publication of Critical Reviews, Preliminary and Original Research Communications in Neurochemistry >Neurochemical mechanisms underlying acute and chronic ethanol-mediated responses in zebrafish: The role of mitochondrial bioenergetics
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Neurochemical mechanisms underlying acute and chronic ethanol-mediated responses in zebrafish: The role of mitochondrial bioenergetics

机译:急性和慢性乙醇介导的斑马鱼介导反应的神经化学机制:线粒体生物植物生物植物的作用

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Ethanol (EtOH) is a socially-accepted drug, whose consumption is a risk factor for non-intentional injuries, development of pathologies, and addiction. In the brain, EtOH affects redox signaling and increases reactive oxygen species (ROS) production after acute and chronic exposures. Here, using a high-resolution respirometry assay, we investigated whether changes in mitochondrial bioenergetics play a role in both acute and chronic EtOH-mediated neurochemical responses in zebrafish. For the first time, we showed that acute and chronic EtOH exposures differently affect brain mitochondrial function. Acutely, EtOH stimulated mitochondrial respiration through increased baseline state, CI-mediated OXPHOS, OXPHOS capacity, OXPHOS coupling efficiency, bioenergetic efficiency, and ROX/ETS ratio. Conversely, EtOH chronically decreased baseline respiration, complex I-and II-mediated ETS, as well as increased ROX state and ROX/ETS ratio, which are associated with ROS formation. Overall, we observed that changes in mitochondrial bioenergetics play a role, at least partially, in both acute and chronic effects of EtOH in the zebrafish brain. Moreover, our findings reinforce the face, predictive, and construct validities of zebrafish models to explore the neurochemical bases involved in alcohol abuse and alcoholism.
机译:乙醇(EtOH)是一种社会接受的药物,其消费是非故意伤害,病理学和成瘾的危险因素。在大脑中,EtOH影响氧化还原信号传导,并在急性和慢性曝光后增加反应性氧物种(ROS)产生。这里,使用高分辨率呼​​吸测定法测定,我们研究了线粒体生物植物学的变化是否在Zebrafish中发挥急性和慢性EtOH介导的神经化学反应中的作用。我们首次表明急性和慢性EtOH暴露会影响脑线粒体功能。急性,EtOH刺激线粒体呼吸通过增加基线状态,CI介导的汤膦,毒物容量,毒物偶联效率,生物能效率和ROX / ETS比率。相反,EtOH慢性地减少了基线呼吸,复合I-和II介导的ET,以及增加的ROX状态和ROX / ETS比率,其与ROS形成相关。总体而言,我们观察到线粒体生物能器学的变化至少部分地在斑马鱼脑中的EtOH的急性和慢性作用中发挥作用。此外,我们的研究结果强化了斑马鱼模型的面部,预测和构建有效性,以探索参与酒精滥用和酗酒的神经化学基础。

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