Effect of a contralateral lesion on neurological recovery from stroke in rats

被引:14
作者
Sun, Fen [1 ]
Xie, Lin [1 ]
Mao, XiaoOu [1 ]
Hill, Justin [1 ]
Greenberg, David A. [1 ]
Jin, Kunlin [1 ]
机构
[1] Univ N Texas, Hlth Sci Ctr, Dept Pharmacol & Neurosci, Ft Worth, TX 76107 USA
关键词
Stroke; ischemia; recovery; rat; NONINVASIVE BRAIN-STIMULATION; CORPUS-CALLOSUM; INTERHEMISPHERIC INTERACTIONS; BEHAVIORAL RECOVERY; MOTOR FUNCTION; CORTEX; INHIBITION; FORELIMB; INFARCTS; DEFICITS;
D O I
10.3233/RNN-2012-120254
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Purpose: Clinical studies suggest a correlation between changes in activity of the contralesional cerebral cortex and spontaneous recovery from stroke, but whether this is a causal relationship is uncertain. Methods: Young adult Sprague-Dawley male rats underwent unilateral or bilateral permanent distal middle cerebral artery occlusion (dMCAO). Infarct volume was determined by 2,3,5-triphenyltetrazolium chloride (TTC) staining 24 hr after dMCAO, and functional outcome was assessed 1-28 days after dMCAO using the ladder rung walking and limb placing tests. Results: Infarct volume was unchanged, but functional neurological deficits were reduced 1 day after bilateral compared to unilateral dMCAO. Conclusions: Activity in the contralesional cerebral cortex may inhibit functional motor recovery acutely after experimental stroke.
引用
收藏
页码:491 / 495
页数:5
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