减少过度的GABA介导的增强性抑制可以促进中风后的功能恢复
Andrew N Clarkson1, Ben S Huang, Sarah E Macisaac
1Department of Neurology, The David Geffen School of Medicine at UCLA, 635 Charles Young Drive South, Los Angeles, California 90095, USA.
Nature
|November 5, 2010
概括
脑卒中增加了大脑的抑制,阻碍了恢复. 用药物或遗传方法向特定的GABA (A) 受体可以恢复运动功能,为中风幸存者提供新的治疗策略.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 脑卒中研究 脑卒中研究
背景情况:
- 脑卒中是导致残疾的主要原因,恢复治疗有限.
- 围心脏病发作区域表现出神经可塑性,这对功能恢复至关重要.
- 了解这个区域的神经元的约束是开发新疗法的关键.
研究的目的:
- 研究中风后心脏病发作周围区域的神经元抑制的变化.
- 确定增强强力抑制的机制.
- 探索治疗策略,以促进运动功能的恢复.
主要方法:
- 在小鼠中研究了中风.
- 分析了心脏梗塞周边区域的强度神经元抑制.
- 使用一种特定的二胺逆agonist.
- 使用了GABA (A) 受体子单元的基因修改.
主要成果:
- 在中风后,在心脏梗塞周围区域观察到增强的强度抑制.
- 这种抑制是由外突触GABA (A) 受体介导的,原因是GABA输送器功能受损.
- 用二胺逆agonist或基因减少特定的GABA (A) 受体子单元的治疗促进了运动功能的恢复.
结论:
- 在心脏中风周围区域的强度抑制会影响中风恢复.
- 准超突触GABA (A) 受体功能提供了一个有前途的治疗策略.
- 这项研究确定了促进中风和其他脑损伤后恢复的新药学标.
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