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A method for reducing animal use whilst maintaining statistical power in electrophysiological recordings from rodent nerves

机译:一种减少动物使用同时保持来自啮齿动物神经的电生理记录的统计能力的方法

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摘要

The stimulus evoked compound action potential, recorded from nerve trunks such as the rodent optic and sciatic nerve, is a popular model system used to study aspects of nervous system metabolism. This includes (1) the role of glycogen in supporting axon conduction, (2) the injury mechanisms resulting from metabolic insults, and (3) to test putative benefits of clinically relevant neuroprotective strategies. We demonstrate the benefit of simultaneously recording from pairs of nerves in the same superfusion chamber compared with conventional recordings from single nerves. Experiments carried out on mouse optic and sciatic nerves demonstrate that our new recording configuration decreased the relative standard deviation from samples when compared with recordings from an equivalent number of individually recorded nerves. The new method reduces the number of animals required to produce equivalent Power compared with the existing method, where single nerves are used. Adopting this method leads to increased experimental efficiency and productivity. We demonstrate that reduced animal use and increased Power can be achieved by recording from pairs of rodent nerve trunks simultaneously.
机译:从啮齿动物的视神经和坐骨神经等神经干记录的刺激诱发的复合动作电位是一种流行的模型系统,用于研究神经系统代谢的各个方面。这包括(1)糖原在支持轴突传导中的作用,(2)代谢损伤导致的损伤机制,以及(3)测试临床相关神经保护策略的假定益处。我们证明了与从单个神经的常规记录相比,在同一个融合室中同时从神经对记录的好处。在小鼠视神经和坐骨神经上进行的实验表明,与来自相同数量的单独记录的神经的记录相比,我们的新记录配置降低了与样品的相对标准偏差。与使用单个神经的现有方法相比,新方法减少了产生等效功率所需的动物数量。采用这种方法可以提高实验效率和生产率。我们证明减少动物的使用和增加的力量可以通过同时记录成对的啮齿动物神经干来实现。

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