抗抑郁药fluoxetine可以恢复成人视觉皮层的可塑性
José Fernando Maya Vetencourt1, Alessandro Sale, Alessandro Viegi
1Scuola Normale Superiore, Piazza dei Cavalieri, I-56100 Pisa, Italy. jf.maya@in.cnr.it
概括
抗抑郁药Fluoxetine通过增强神经元可塑性,恢复了成年眼老鼠的视力. 这发生在视觉皮层中通过减少抑制和增加来自大脑的神经营养因子而发生.
科学领域:
- 神经科学是一个神经科学.
- 眼科医生 眼科 眼科
- 药理学 药理学是指药理学的学科.
背景情况:
- 神经元可塑性对视觉系统发育至关重要,但在成年后会下降.
- 眼,或"眼",是一种发育障碍,其特点是视力敏度降低.
- 目前的眼治疗在幼儿时代最有效.
研究的目的:
- 为了研究素 (一种抗抑郁药) 是否可以恢复成年大鼠视觉系统中的神经元可塑性.
- 为了确定fluoxetine在成人双视大鼠中改善视觉功能的潜力.
主要方法:
- 对成年大鼠进行慢性施用素.
- 视觉功能的电生理学和行为评估和眼睛主导性可塑性.
- 在视觉皮层测量皮质内抑制和脑衍生神经营养因子 (BDNF) 表达.
- 用于评估皮层内抑制作用的亚泽帕姆的管理.
主要成果:
- 在成年大鼠中,素恢复了眼球主导性可塑性.
- 素促进了成年双眼老鼠视觉功能的恢复.
- 这些效应与视觉皮层中减少的皮质内抑制和增加的BDNF相关.
- 迪亚泽帕姆阻断了素的有益作用,证实了减少抑制的作用.
结论:
- 素可以恢复成年动物的视觉皮质可塑性.
- 降低皮层内抑制是fluoxetine增强视觉可塑性的关键机制.
- 富洛克塞丁显示出作为一种新型治疗剂的潜力,用于治疗成年人的盲视.
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