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The effect of erythropoietin on electroconvulsive stimulation induced cognitive impairment in rats.
Behavioural Brain Research ( IF 2.7 ) Pub Date : 2020-01-16 , DOI: 10.1016/j.bbr.2020.112484
Kristian Kjær 1 , Martin Balslev Jørgensen 2 , Ida Hageman 2 , Kamilla Woznica Miskowiak 3 , Gitta Wörtwein 4
Affiliation  

Electroconvulsive therapy (ECT) is the most effective and fast-acting treatment for severe depression but associated with troublesome cognitive side-effects. Systemically administered erythropoietin (EPO) crosses the blood-brain-barrier and is a promising treatment for cognitive dysfunction in a wide array of neuropsychiatric and neurological disorders. In this study we trained rats to locate a submerged platform in a water maze and then subjected them to electroconvulsive stimulations (ECS, the rodent equivalent to ECT) and EPO treatment. We then analysed their ability to remember and relearn the location of the platform. In addition, we examined "wall-clinging" (thigmotaxis), a behavioural indicator of stress. ECS caused significant deficit in a probe trial administered after three weeks (nine stimulations) as well as one week (six stimulations) of treatment, indicative of induction of retrograde amnesia. ECS had no effect on relearning of the water maze task or performance in a subsequent probe trial. EPO treatment did not ameliorate the ECS-induced retrograde amnesia, but after nine ECS stimulations the animals that had received EPO relearned the position of the hidden platform faster than the animals that had not. We also found EPO to decrease "wall-clinging" behaviour, suggesting an effect of EPO on the stress response in rats. Thus, we establish the Morris Water Maze as a suitable model for ECS-induced memory loss in rats and provide some evidence for potential beneficial effects of EPO.

中文翻译:

促红细胞生成素对电惊厥刺激大鼠认知功能的影响。

电痉挛疗法(ECT)是治疗严重抑郁症最有效,最快速的方法,但会带来麻烦的认知副作用。全身施用的促红细胞生成素(EPO)跨过血脑屏障,是多种神经精神病学和神经系统疾病中认知功能障碍的有前途的治疗方法。在这项研究中,我们训练了大鼠在水迷宫中找到一个浸没的平台,然后对它们进行电惊厥刺激(ECS,相当于ECT的啮齿动物)和EPO处理。然后,我们分析了他们记住和重新学习平台位置的能力。另外,我们检查了“墙紧贴”(动轴),这是压力的行为指标。在治疗三周(九次刺激)和一周(六次刺激)后进行的一项探针试验中,ECS导致明显的赤字,表明诱发了逆行性健忘症。ECS在随后的探查试验中对重新学习水迷宫任务或性能没有影响。EPO治疗并没有改善ECS引起的逆行性健忘症,但是在进行9次ECS刺激后,接受EPO的动物比没有接受EPO的动物重新学习隐藏平台的位置。我们还发现EPO减少了“粘壁”行为,表明EPO对大鼠的应激反应有影响。因此,我们建立了莫里斯水迷宫作为ECS诱导的大鼠记忆丧失的合适模型,并为EPO的潜在有益作用提供了一些证据。指示诱发逆行性健忘症。ECS在随后的探查试验中对重新学习水迷宫任务或性能没有影响。EPO治疗并没有改善ECS引起的逆行性健忘症,但在进行9次ECS刺激后,接受EPO的动物比没有接受EPO的动物重新学习隐藏平台的位置。我们还发现EPO减少了“粘壁”行为,表明EPO对大鼠的应激反应有影响。因此,我们建立了莫里斯水迷宫作为ECS诱导的大鼠记忆丧失的合适模型,并为EPO的潜在有益作用提供了一些证据。指示诱发逆行性健忘症。ECS在随后的探查试验中对重新学习水迷宫任务或性能没有影响。EPO治疗并没有改善ECS引起的逆行性健忘症,但在进行9次ECS刺激后,接受EPO的动物比没有接受EPO的动物重新学习隐藏平台的位置。我们还发现EPO减少了“粘壁”行为,表明EPO对大鼠的应激反应有影响。因此,我们建立了莫里斯水迷宫作为ECS诱导的大鼠记忆丧失的合适模型,并为EPO的潜在有益作用提供了一些证据。但是经过9次ECS刺激后,接受EPO的动物比没有接受EPO的动物重新学习隐藏平台的位置。我们还发现EPO减少了“粘壁”行为,表明EPO对大鼠的应激反应有影响。因此,我们建立了莫里斯水迷宫作为ECS诱导的大鼠记忆丧失的合适模型,并为EPO的潜在有益作用提供了一些证据。但是经过9次ECS刺激后,接受EPO的动物比没有接受EPO的动物重新学习隐藏平台的位置。我们还发现EPO减少了“粘壁”行为,表明EPO对大鼠的应激反应有影响。因此,我们建立了莫里斯水迷宫作为ECS诱导的大鼠记忆丧失的合适模型,并为EPO的潜在有益作用提供了一些证据。
更新日期:2020-01-16
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