中国康复理论与实践2017，Vol.23Issue(7)：756-761,6.DOI:10.3969/j.issn.1006-9771.2017.07.003
弥散张量成像观察电针对缺血性脑卒中大鼠运动皮层-纹状体神经传导束的影响
Effects of Electroacupuncture on Nerve Bundle of Motor Cortex and Striatum in Rats with Ischemic Stroke:Ob-served with Diffusion Tensor Imaging
摘要
Abstract
Objective To explore the effect of electroacupuncture at Quchi (LI11) and Zusanli (ST36) acupoints on motor behaviors, the axonal integrity and nerve bundle of motor cortex and striatum in rat model of ischemic stroke induced by middle cerebral artery occlusion (MCAO) using diffusion tensor imaging (DTI). Methods Thirty-six adult male Sprague-Dawley rats were randomly assigned to sham opera-tion group (sham group), ischemia control group (model group) and electroacupuncture treatment group (EA group) with twelve rats in each group. The later two groups were occluded their middle cerebral arteries for two hours. Twenty-four hours after modeling, EA group re-ceived electroacupuncture at Quchi (LI11) and Zusanli (ST36) acupoints on the paralyzed limb, once a day, for 14 days. They were assessed with modified Neurological Severity Scores (mNSS) and Rota-rod test, and scanned with small animal magnetic resonance imaging system for T2-weighted image (T2WI) and DTI, the infarct size, related fractional anisotropy (rFA) and related number of tracks of motor cortex and striatum were recorded. Results Compared with the sham group, the score of mNSS increased in the model group and EA group after model-ing, and was lower in EA group than in the model group seven days and 14 days after intervention (P<0.05). Rota-rod test showed that the retention time was significantly longer in EA group than in the model group (P<0.05). T2WI showed that the infarct size was smaller in EA group than in the model group (P<0.05). DTI showed that rFA in motor cortex and striatum was higher in EA group than in the model group (P<0.05), as well as the related number of tracks (P<0.05) in motor cortex. Conclusion Electroacupuncture at Quchi and Zusanli acupoints could improve the motor function in rats with ischemic stroke, which may be related to the recovery of nerve bundle of motor cortex and stri-atum in ischemic side.关键词
缺血性脑卒中/电针/弥散张量成像/运动功能/大鼠Key words
ischemic stroke/electroacupuncture/diffusion tensor imaging/motor function/rats分类
医药卫生引用本文复制引用
林冰冰,王鲜,柳维林,梁胜祥,杨敏光,陶静,陈立典..弥散张量成像观察电针对缺血性脑卒中大鼠运动皮层-纹状体神经传导束的影响[J].中国康复理论与实践,2017,23(7):756-761,6.基金项目
国家自然科学基金项目(No.81373778). （No.81373778）
