Establishment and evaluation of middle cerebral artery occlusion ( MCAO) models in SD rats

An improved permanent focal MCAO model in cat

猫持续性局灶脑缺血模型的改进

Conclusion The modified MCAO model is a cerebral ischemia-reperfusion model in rats with favorable stability and high success rate.

结论改良的大鼠MCAO模型是一种稳定性好、成功率高的脑缺血-再灌注模型。

Methods: A rat model of focal cerebral ischemia was made by MCAO of electric coagulation.

方法：电凝阻断大脑中动脉法制备大鼠局灶性脑缺血模型。

Layered atmospheric structure and MCAO phase correction

大气湍流的分层结构及自适应光学共轭校正

The rat MCAO ischemia/ reperfusion model was made by the intraluminal suture method.

采用线栓法阻断大鼠大脑中动脉产生局灶性脑缺血再灌注模型；

Methods Old rats were used to make models of middle cerebral artery occluded ( MCAO).

方法取老年大鼠制作大脑中动脉梗塞模型。

Heat-shock protein 70 gene expression in brain of MCAo rats

热休克蛋白HSP70在MCAo大鼠脑中的表达

Conclusion Ischemia stroke sequela model of rats can be established in 5 weeks after MCAO.

结论：大鼠MCAO5周后为缺血性中风后遗症大鼠模型。

The expression of Nogo protein-A in the brain of MCAO rats was observed by in situ hybridization and the section was subjected to image analysis to determine the mean staining gray.

原位杂交法观察大脑中动脉闭塞大鼠脑内勿动蛋白-A的表达，并对切片进行图像分析，测定染色平均灰度。

After MCAO, abnormal signal area enlarged with the time delay.

MCAO后随时间延长，DWI上异常高信号区逐渐增大。

CONCLUSION: Rest myocardial blood flow was increased, CVR was decreased;

结论：急性低氧时，安静心肌血流量增加，CVR减少；

Conclusions The breath-holding test is a simple, economic and effective method for assessing CVR.

结论TCD屏气试验作为一种简单、方便、经济的检测手段，可有效地用于CVR评价。

Hypertension can significantly impair CVR.

高血压病能显著影响CVR。

Cerebrovascular reactivity ( CVR) is a compensatory ability of cerebral micro vessels to maintain the stability of cerebral blood flow by vasodilation or vasoconstriction.

脑血管反应性（cerebrovascular reactivity，CVR）是脑微小血管自身通过血管舒张或收缩维持脑血流量稳定的代偿能力。

The computer processing methods, applying to CVR sound information ( noise 、 speech signals background sound), are systemically put forward according to Matlab Wavelet Transform.

系统提出了运用MATLAB语言和小波变换对舱音记录器所记录的声信息（噪声、语音信息和其它背景声信息）识别方法。

Identification of the Acoustic Signal of CVR Based on Online Algorithm of Independent Component Analysis

基于在线独立分量分析算法的飞机舱音信息分离

However, right ventricular myocardial ET-1 contents, ET-1/ NO-2 ratio were increased, right ventricular CVR and myocardial NO-2 contents were decreased.

右室心肌ET-1含量、ET-1/NO-2比值明显增加，右室NO-2含量、CVR明显下降；

United time-frequency analysis for background sounds of CVR

飞机舱音记录器背景声信息的联合时频分析

Initial Study on Airplane Cockpit Voice Recorder ( CVR)′ Sound Information Identification Methods

飞机舱音记录器声信息识别方法的初步研究

Results: PAMD can increase CBF and decrease CVR, but have no effect of cardiac function;

结果：PAMD可增加脑血流量，降低脑血管阻力，对心脏功能无明显影响；