查询词典 occluding

Methods Focal cerebral ischemia and reperfusion model in male adult SD rats was established by occluding the right middle artery with 40 nylon thread blood flow blocked for 90 minutes and then reperfusion for 1 day, 7 days and 14 days.One microliter MK801 (5mmol/L and NBQX (50mmol/L) were respectively injected into the cerebral ischemic area of SD rats under stereodirectional instrument right after ischemia.

以线栓法制作成年SD大鼠局灶性脑缺血再灌注模型(阻塞90min再灌注1d、7d和14d)，分别向其大脑皮质缺血区立体定向注射5mmol/L 的MK801和50 mmol/L的NBQX各1μl，用免疫荧光组织化学法检测脑缺血再灌注后成年大鼠早期大脑梗死中心区、梗死周边区和缺血对侧NG2和O4阳性细胞数量。

To detect effects on apoptosis of cortex neuron in DHCA rats, the rat model of occluding bilateral common carotid artery in the deep hypothermic (21C) rats had been established, and flow cytometry, TUNEL, electron microscope, immunohistochemistry and RT-PCR had been studied.: part I: To establish a new rat model of cerebral ischemia/protect during DHCA: 20 SD rats were used in the experiment, little animal respirator was to assist anesthetized rat's respiration after tracheal cannula, artery press through artery spile in femoral artery, electrocardiograph, temperature, blood saturation of O2 (SaO2) and arterial blood gases were monitored during the whole experiment, blood flow of bilateral common carotid artery of rat were occluded about 60 minute when its temperature was reduced to 21 C by ice, then normal temperature was resumed.

本研究采用大鼠深低温颈总动脉阻断模型，应用流式细胞仪、电镜、原位缺口末端标记法、免疫组化法和RT-PCR技术分别检测深低温脑缺血对皮层神经细胞调亡的影响方法：第一部分深低温停循环脑保护大鼠模型的建立：SD大鼠20只，麻醉后气管插管辅助呼吸，用冰块将大鼠的体温降至(21±1)℃，阻断双侧颈总动脉，记录体温、心率、血压、血氧饱和度和血气分析，60分钟后恢复颈总动脉血流，用Longa等的5级评分标准评定4小时和24小时后大鼠神经系统损伤情况。

Objective: To evaluate the tubule occluding ability of tricalcium silicate.

目的：评价硅酸三钙对牙本质小管的阻塞能力。

RESULT: 1.Ouabain act on lens sodium-pump,under the LM,lens anterior capsular membrane discontinuous,epithelium cells clustered,occluding zonule seperated,lens fiber layers fractured.Under the EM,cells totally hollowed,mitochondria swelling,myelin figure appeared.RT-PCR examine the expression condition of αsubunit of sodium pump on mRNA level,α1、α2 and α3-isoform are all decreased.2.Digoxin act on lens sodium-pump,under the LM,lens cell oedema,linkage distructed,extensive exfoliation.Under the EM,plasma appeared little half-transparant hollow region,mitochondria swelling and ridge disappeared. RT-PCR examine,α1、α2 and α3-isoform are all decreased.3.Amphotericin B act on lens sodium-pump,under the LM,lens epithelium cells linked tightly,arranged in-line,lens fiber layers arranged tightly and regularily.Under the EM,abbundant cellular organes,exuberant cells function indicated. RT-PCR examine the expression condition of αsubunit of sodium pump on mRNA level,α1 and α3-isoform are increased significantly,demonstrated isoform-specific action.4D-thyroxine act on lens sodium-pump,under the LM,lens plasmalemma integrated,cells arranged tightly and regularily.Under the EM,nucleus fission appeared,desmosome half-desmosome and tensile microfilaments linked the cells. RT-PCR examine,α2 and α3-isoform are increased, also demonstrated isoform-specific action.5.Vitamin E act on lens sodium-pump,under the LM,lens anterior capsular membrane continuous and smooth,epithelium cells tightly linked,lens fiber layers appearede hollow region occasionally.Under the EM,lateral membrane high density belt appeared,abundant nucleolus. RT-PCR examine,onlyα1-isoform are increased, demonstrated significantly isoform-specific action.6.DMSO act on lens sodium-pump,under the LM,lens anterior capsular membrane slightly thicker,cells linkage partly distructed.Under the EM,plasmalemma denaturation,mitochondria swelling.RT-PCR examine,α1、α2 and α3-isoform are all altered slightly and haven't significant meanning.

结果：1、哇巴因作用于晶状体钠泵后，光镜下晶状体前囊膜断裂、上皮细胞聚积、闭合连接分离、纤维板层裂隙，电镜下全层细胞空泡化、线粒体肿胀出现髓样结构，RT-PCR法检测晶状体钠泵α亚单位α1、α2及α3三种重整异构体在mRNA水平的表达均减弱。2、地高辛作用于晶状体钠泵后，光镜下晶状体细胞水肿、细胞连接破坏、广泛剥离，电镜下胞质见少许半透明空化区、线粒体肿胀嵴消失，RT-PCR法检测晶状体钠泵α亚单位α1、α2及α3三种重整异构体在mRNA水平的表达均减弱。3、两性霉素B作用于晶状体钠泵后，光镜下晶状体上皮细胞紧密连接、线状排列、纤维板层紧密规整，电镜下细胞器丰富、细胞功能旺盛，RT-PCR法检测α1及α3表达显著增强、具有一定的重整异构作用特异性。4、D甲状腺素作用于晶状体钠泵后，光镜下晶状体质膜完整、细胞排列紧密规整，电镜下胞核见分裂像、细胞间有桥粒、半桥粒及张力微丝，RT-PCR法检测α2及α3表达均增强、亦有一定的重整异构作用特异性。5、维生素E作用于晶状体钠泵后，光镜下晶状体前囊膜连续光滑、上皮细胞紧密连接、纤维板层偶见空化，电镜下囊侧膜内有高电子密度带、细胞核仁丰富，RT-PCR法检测仅有α1的表达显著增强、具有极强的重整异构作用特异性。6、二甲基亚砜作用于晶状体钠泵后，光镜下晶状体前囊膜轻度增厚、细胞连接部分破坏，电镜下质膜变性、线粒体肿胀，RT-PCR法检测晶状体钠泵α亚单位α1、α2及α3三种重整异构体在mRNA水平的表达无显著改变。

Rats ,in the sham-operation group were exposed of bilateral foramen alares and carotid artery only without occluding the vessels.

各组大鼠在麻醉状态下钻开颅骨，于前囟后1.2mm、左旁1.5—nm处用微量加样器进针3.5mm穿刺脑室。

METHODS Spinal cord ischemia was induced by occluding infrarenal abdominal aorta.

采用腹主动脉肾下段夹闭法建立兔脊髓缺血模型。

The model of MCAO was made by occluding the MCA with thread according to Longa＇ s method.

采用Longa线栓法制成年sD大鼠大脑中动脉闭塞模型。

Biphasic flow could be seen in the myocardium neighbored to the occluding site in 2 of the 8 dogs.

8条犬中 2条近结扎处有直通心肌内双期血流信号

Your doctor may also suggest occluding the opening of the tear drain in the eyelid with special inserts called punctal plugs. This works like closing a sink drain with a stopper.

你的医生可能会建议你用一种叫punctal 塞的特殊植入物来闭塞眼睑中排泪管道的开口处，这就像用塞子堵住水池的排水口一样。

Methods Twenty-five cases of giant PLCs, with a mean diameter of 14.78cm, were evaluated. All of the tumors involved the main hepatic veins and /or retrohepatic vena cava. Before resection the tumor was fully exposed and an occluding tape, when neccessary, was placed around the vena cava.

25例累及第二第三肝门的肝癌，平均肿瘤直径14.78cm，分别压迫主要肝静脉根部或/和肝后腔静脉；进腹充分暴露肿瘤后在间歇性第一肝门阻断下切除肿瘤，切肝前根据需要预置腔静脉阻断带备用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。