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In thisstudy, we sought to determine the number of injections neededto provide a reasonably complete anesthesia of the upper limbwith this approach. Seventy-five patients were randomly assignedto receive a coracoid block guided by nerve stimulator with42 mL of 1.5% mepivacaine with a single-injection (Group 1),dual-injection (Group 2), or triple-injection (Group 3) technique.

在本研究中,我们拟探讨为提供完善的上肢麻醉效果所需要的锁骨下臂丛神经阻滞的注射次数。75例病人用神经刺激器指导喙突旁臂丛神经阻滞,随机用1.5%的甲哌卡因42ml 行单次注射(组1)、分两次注射(组2)或分三次注射(组3)。

In blastula embryos and 50% epiboly embryos, the zygotic pou2 transcript is also distributed in every blastomere cell. At the stage of 90% epiboly, expression of pou2 converges to the dorsal midline of embryos and locates in two waves of lateral neural plate and two transverse stripes in the brain region. In embryos at 100% epiboly, pou2 transcript is restricted in the neural plate and areas of presumptive midbrain amid himdbrain. From somite stage, gibel carp pou2 can not be detected any more, which is consistent with the RT-PCR result.

在高囊胚期和50%下包期,高度表达的合子转录本仍在所有的胚盘细胞中,但至90%下包期时,pou2的表达向胚胎背部的正中线汇聚,集中在神经板的两侧区域和脑部的两条横向条带在100%下包期时,pou2的表达集中在神经板的中间区域以及预期形成的中后脑区域至体节期时,转录本消失,这与RT-PCR结果高度一致。

Then, breifly introduced the arithmetic of the Multiple Linear Regression and artificial neural networks, built up the Multiple Linear Regression model and artificial neural networks model on this foundation, and forecast ice jam water level distinguishly under experiment condition and natural condition.

然后,简要地介绍了多元线性回归和人工神经网络的数学算法,在此基础上建立了多元线性回归模型和神经网络模型,并依此分别对试验条件下和天然条件下冰塞的水位进行预测。

Previous studies have revealed that aganglionic or morphological and numerical abnormalities of the intestinal intramural ganglia may contribute to the pathogenesis of the intestine motility obstacle of them.

目前认为HD和HAD肠动力障碍的发病机制主要是病变肠段粘膜下神经丛和肌间神经丛的神经节细胞的缺失和减少,病变肠壁内的副交感、交感及第三类神经系统均有改变。

Nerve stem cell can be differentiation into astroblast, oligodendrocyte and nerve cell induced by factors.

神经干细胞的增殖分化可受各种因素的影响,目前已知,许多细胞因子,生长因子,营养因子以及细胞外环境等因素的作用,可诱导神经干细胞向不同的终末细胞分化,若能在体外分离培养神经干细胞并在促分化因子的作用下,诱导神经干细胞向某一特定方向分化,将为干细胞的分化机制提供有力的实验依据。

The effective stimulating sites were indentified by defensive cardiovascular response and other components of defence reaction evoked by 3 s trains of rectangular cathodal pulses (100Hz, 0.5ms pulse duration, 70 -150μA intensity for dPAG and 150-250μA for PF) delivered from a programmed multichannel constant current stimulator. The responses included an increase in blood pressure and heart rate, pupillodilation and an increase in the rate and depth of respiration. Currents of 1Hz, intensity of 100- 150μA for dPAG and 200-250μA for PF were used to observe the effect of the stimulation of them on RVLM neurones. The deep peroneal nerve and superfacial deep peroneal nerve were carefully separated, and put on a pair of stimulating electrode respectively, Both nerves were stimulated with constant rectangular pulses of 1Hz, 0.5ms duration and 300μA current intensity to see their effects on RVLM neurones. The baro-and chemo-receptors were activated by the intravenous injection of phenylephrine or 0.208 M NaH2PO4. The degree of convergent inputs to individual RVLM neurone was studied by the stimulation of the sites mentioned above. It was found that neurones about 61.4%(27/44) and 35.3%(6/17) received convergent inputs from three and four places respectively.

过去的研究主要集中于整体水平,利用电刺激或化学刺激RVLM神经元,观察对血压、心率及交感活动的影响,并对影响心血管交感活动的神经递质进行了广泛探讨,积累了大量资料;在神经元水平,主要研究刺激脑内核团、外周神经、化学感受器及压力感受器等对RVLM神经元放电的影响和某些神经递质影响神经元活动的机制、然而,对RVLM神经元如何整合不同信息、其可能突触机制等研究得较少,本互作拟采用在体细胞内、细胞外记录电活动与微电泳,结合中枢核团及外周神经电刺激等方法,对RVLM神经元在不同状态下的整合作用规律与可能机制进行初步探讨,为进一步了解这一复杂的整合过程提供新的理论依据。

Acupuncture treatment can protect the optic nerve from elevated IOP,by alleviated the damages of the retinal and optic nerve axons ultrastructure induced by chronic ocular hypertension,preventing the apoptosis of RGCs,accelerate NO and glutaminic acid remove in rabbits retina and enhanced the expression level of Bcl - xl and BDNF in retina

针刺能有效保护高眼压下的视神经,作用主要表现为减轻视网膜、视神经超微结构损伤,减少阻断或防止视网膜神经节细胞的凋亡,减轻NO、Glu对视网膜神经节细胞毒性作用,上调视网膜抗调亡基因Bcl-xl和神经营养因子BDNF的表达。

Nerve Puncture and Apparent Intraneural Injection during Ultrasound-guided Axillary Block Does Not Invariably Result in Neurologic Injury.

在超声导引下的臂丛阻滞中神经穿刺和明显的神经内注射并不一定都产生神经损伤。

METHODS: Sixty patients undergoing elective unilateral TKAunder spinal anesthesia received in a randomized, double-blindmanner a femoral, obturator, or sham nerve block at the endof surgery.

60名在脊麻下择期行单侧膝关节成形术的患者,在手术结束后接受随机双盲的股神经阻滞或闭孔神经阻滞或未作神经阻滞的临床研究。

In order to study the architectuer of human cardiac neurons, the location and mumber of human cardiac ganglionated plexuses and their nervous connections were investigated.

为了研究人心脏神经元的构筑,观察了人心脏神经节的分布数量和神经连接。光镜下发现大量神经节(550±149)或神经元分布在人的心房和心室表面。

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