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Repeated application of an electric field increases BDNF in the brain, enhances spatial learning, and induces infarct tolerance

机译:反复施加电场会增加大脑中的BDNF,增强空间学习,并诱发梗塞耐受性

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Development of a safe method to increase brain-derived neurotrophic factor (BDNF) in the brain is expected to have utility in enhancing learning and memory, in protecting the brain, and in suppressing appetite. We investigated the effects of whole-body exposure to high voltage electric potential (HELP), which generates an electric field and current density in the body, on BDNF levels in the brain, spatial learning, or resistance to cerebral infarction development after focal ischemia. Adult mice (C57BL/6J) were exposed to 3.5 kV, or 5.8 kV for 5 h a day, making indirect contact with the ground via room air, over 1,3,6 or 12 consecutive weeks. After treatment, BDNF levels, performances in the Morris water maze task (MWM), or development of infarct lesion after focal ischemia was analyzed. Treatment with 3.5 kV for 1, 3,6 or 12 weeks, or with 5.8 kV for 1, 3 or 12 weeks increased BDNF levels in the cortex (P<0.05, one-way ANOVA). Every HELP treatment differentially improved escape latency in the MWM, compared with the corresponding untreated controls (P < 0.05, one-way ANOVA). Treatment with 3.5 kV for 6 or 12 weeks, but not with 5.8 kV protected the brain suppressing cerebral infarction development (P<0.05). The HELP treatment with 3.5 kV for 6 or 12 weeks improves spatial learning, gently suppressing body weight gain, and protects the brain against cerebral infarction.
机译:有望开发出一种安全的方法来增加大脑中的脑源性神经营养因子(BDNF),可用于增强学习和记忆力,保护大脑和抑制食欲。我们研究了全身暴露于高电压电位(HELP)的影响,该电位在人体内产生电场和电流密度,对大脑局部BDNF水平,空间学习或局灶性缺血后脑梗死发展的抵抗力。成年小鼠(C57BL / 6J)每天暴露于3.5 kV或5.8 kV,持续5 h,连续1,3,6或12周通过室内空气与地面间接接触。治疗后,分析了局灶性局部缺血后的BDNF水平,Morris水迷宫任务(MWM)的表现或梗塞病变的发展。 3.5 kV治疗1、3、6或12周,或5.8 kV治疗1、3或12周可增加皮质中BDNF水平(P <0.05,单向方差分析)。与相应的未治疗对照相比,每种HELP治疗均以不同的方式改善了MWM中的逃避潜伏期(P <0.05,单向方差分析)。 3.5 kV电压治疗6或12周,但5.8 kV电压则不能保护大脑抑制脑梗塞的发生(P <0.05)。 3.5 kV的HELP治疗持续6或12周,可改善空间学习效果,轻度抑制体重增加,并保护大脑免受脑梗塞的侵害。

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