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nerve fibre
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  神经纤维
     Effects of allyl chloride on the nerve fibre microtubules,neurofilaments and Ca~(2+),Mg~(2+)contents in rats
     大鼠氯丙烯中毒对神经纤维微管、神经微丝和胞浆内Ca~(2+),Mg~(2+)含量影响
短句来源
     Suffusive retinal nerve fibre layer defect(RNFLD) was showed in 18 eyes(47.37%).
     弥漫性视神经纤维层缺损18眼(47.37%);
短句来源
     The Groningen longitudinal glaucoma study. I. Baseline sensitivity and specificity of the frequency doublingperimeter and the GDx nerve fibre analyser
     Groningen纵向青光眼研究I.倍频视野计和GDx视神经纤维层分析仪的基线敏感度及特异性
短句来源
     Immunohistochemistry was used to detect the expression of BDNF. Results:The expression of BDNF in nerve fibre at 3 h,6 h,12 h,and 24 h in group B was significamtly up-regulated compared with that of each time point in group A (P<0.01).
     结果:B组缺血再灌注后 3h、6h、12h、24h大脑皮层及纹状体BDNF阳性神经纤维密度较A组相应时点均明显增加 (P均 <0. 01);
短句来源
     The Chaos and Synchronization of Nerve Fibre in External Electrical Field
     外电场作用下神经纤维的混沌与同步
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  “nerve fibre”译为未确定词的双语例句
     Retinal nerve fibre layer could not be distinguished in 9 eyes(23.68%).
     9眼(23.68%)不易辨认视神经纤维层。
短句来源
     Change of CNTF in spinal motor neurons and the effects of exogenic CNTF to it after sciatic nerve fibre injury in rats
     大鼠坐骨神经损伤后脊髓运动神经元CNTF水平及外源性CNTF的影响
短句来源
     Comparison of retinal nerve fibre layer thickness and visual field loss between different glaucoma groups
     比较不同青光眼组间的视神经纤维层厚度及视野缺损
短句来源
     The nerve secretory fibre can be divided into types of A1, A2 and B. The nerve fibre forms synaptic or indirect links with special harmone secretory cells.
     根据其轴突内分泌颗粒的大小和形状,鲇神经分泌纤维可区分为A_1、A_2、和B三种类型,不同类型的神经分泌纤维分别与特定激素分泌细胞形成突触联系或其他间接联系形式。
短句来源
     Results Taurine was able to reduce accumulation of AGEs in sciatic nerve,reduce plasma TXB2,restore synthesis of PGI2 in vessel endothelial cells,improve nerve conduction velocity partly,and ameliorate morphology abnormalities in myelin nerve fibre.
     结果  牛磺酸可降低血浆TXB2及坐骨神经中糖化终产物,提高血浆6-keto-PGF1α含量,部分改善坐骨神经传导速度,减轻神经的病理改变。
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  相似匹配句对
     CHARACTERISTICS OF SINGLE FIBRE DISCHARGES IN THE PHRENIC NERVE OF THE CAT
     正常猫膈神经单纤维电活动特征
短句来源
     THE BIREFRINGENCE PROPERTIES OF THE MYELIN SHEATH OF SHRIMP NERVE FIBRE
     对虾神經纤维的双折射性质
短句来源
     Fibre for fertility
     日粮纤维对母猪繁殖率的影响
短句来源
     On Dietary Fibre
     浅论膳食纤维
短句来源
     Nes-B in nerve;
     神经为Nes—B;
短句来源
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  nerve fibre
Afferent nerve fibre activity from left ventricular mechanoreceptors was recorded in 10 anaesthetized cats before and after two intravenous injections of 15 μg/kg digoxin at 1 hour interval.
      
A linear relationship between the nerve fibre diameter and the conduction velocity of the fastest fibres was found.
      
Sural nerve biopsy revealed nerve fibre degeneration of the Wallerian type, associated with reduction of axonal cross-sectional areas and some degree of nerve fibre regeneration that could be confirmed morphometrically.
      
It is concluded that there may be a relationship between autonomic (parasympathetic) pupillary dysfunction and peripheral small nerve fibre dysfunction.
      
The antimigraine action of NSAIDs may be via either an effect on blood vessels or an effect on the nerve fibre.
      
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Thirteen adult guinea-pigs were divided into 3 groups:2 as normal controls;6 and 5 being treated with streptomycin sulphate 200 and 400mg per kilo body weight res- pectively for 21—60 days.The vestibular and auditory functions were tested.Their brains were prepared for Bielschowsky and Nissl sections.Microscopic examination re- vealed the following facts. Vascular disturbances prevail in the nervous system.The blood vessels are crumpled with concommittent perivascular edema.The adjacent nervous tissue shows...

Thirteen adult guinea-pigs were divided into 3 groups:2 as normal controls;6 and 5 being treated with streptomycin sulphate 200 and 400mg per kilo body weight res- pectively for 21—60 days.The vestibular and auditory functions were tested.Their brains were prepared for Bielschowsky and Nissl sections.Microscopic examination re- vealed the following facts. Vascular disturbances prevail in the nervous system.The blood vessels are crumpled with concommittent perivascular edema.The adjacent nervous tissue shows ischemic softening and the nerve fibres become demyelinated. The intoxicated nerve cells are generally dehydrated and shrunken often with eccen- tricity of nuclei and chromophilic lumps.Gliosis and neurophagosis are common. The vestibular and cochlear systems of the eighth or stato-acoustic nerve exhibit intoxicative changes in the 2 groups of animals.On the peripheral as well as the central side,the degeneration of the vestibular structures supercedes that of the cochlear system. The site and nature of the intoxication are much alike in the light and heavy-dose groups,yet the latter shows a higher severity. The degenerative alterations appear simultaneously in the perpheral and central struc- tures.A question of primacy in intoxication—peripheral or central—is not existent. There is a chain of structures on the peripheral and central sides of the stato-acoustic system;their degeneration does not proceed along the conduction path,nor the degree of intoxication varies with their relative positions on the conduction scale.The peri- pheral and central units get intoxicated independently. Besides the stato-acoustic structures streptomycin afflicts other sensory(e.g.trige- minal) and motor systems,the viscero-motor in particular.Streptomycin intoxication is general in nature,yet some structures are especially sensitive to it. The relative vulnerability to streptomycin of the nervous structures is apparently conditioned by their chemical constitution. Streptomycin injuries higher brain parts which are mainly motor,especially viscero- motor.The diencephalic viscero-motor nuclei,the striate complex and the visceral cor- tex are excessively disintegrated.The extensive intoxicative manifestations have a neurological basis. The toxin of streptomycin affects the entire nervous system and hence the whole bodily mechanisms.Its medical application calls for a meticulous consideration with respect to the patient's sensitivity to the antibiotic,the size of the dose and the length of the therapeutic course.

十三个成长的豚鼠分为三粗,2个作正常对照,此外6个和5个每日分别注射链霉秦硫酸盐,一公斤体重200和400毫克,共经21至60天。未了,豚鼠都经过平衡和听觉的测验。各脑分别染制Nissl和Bielschowsky切片。显微镜的检查得到以下的结果。神经系中普见血管的病变。血管塌陷,管外间质水肿。邻近的神经组织失血软化。神经纤维表现髓鞘溶解。中毒的神经细胞脱水萎缩,常见胞核偏位,染色质偏聚、结块。也时有神经胶质增生和神经吞噬现象。二组豚鼠在位听神经的前庭系和耳蜗系都有中毒的征象。在周缘部和中枢部,前庭系各极结构的病变,与耳蜗系相较,更为严重。在注射轻剂和重剂的二组豚鼠,神经系中毒的部位和性质是相似的,但重剂组的病变程度较高。在位听系,中毒的病变同时见于周缘部和中枢部。中毒的第一性的问题——在周缘, 抑在中枢——是不存在的。周缘和中枢各有一系结构,病变的表现不沿神经传导的路线;病变的轻重也不随路线上地位的高低。周缘和中枢的各项结构是各自中毒的。链霉素不仅毒害位听神经一系,而更损伤其它感觉系(如三叉神经系)和运动系——特是内脏运动系——的结构。链霉素中毒是一般性的,但有些结构特易感受它的毒害。在各级结构中,神经细胞的...

十三个成长的豚鼠分为三粗,2个作正常对照,此外6个和5个每日分别注射链霉秦硫酸盐,一公斤体重200和400毫克,共经21至60天。未了,豚鼠都经过平衡和听觉的测验。各脑分别染制Nissl和Bielschowsky切片。显微镜的检查得到以下的结果。神经系中普见血管的病变。血管塌陷,管外间质水肿。邻近的神经组织失血软化。神经纤维表现髓鞘溶解。中毒的神经细胞脱水萎缩,常见胞核偏位,染色质偏聚、结块。也时有神经胶质增生和神经吞噬现象。二组豚鼠在位听神经的前庭系和耳蜗系都有中毒的征象。在周缘部和中枢部,前庭系各极结构的病变,与耳蜗系相较,更为严重。在注射轻剂和重剂的二组豚鼠,神经系中毒的部位和性质是相似的,但重剂组的病变程度较高。在位听系,中毒的病变同时见于周缘部和中枢部。中毒的第一性的问题——在周缘, 抑在中枢——是不存在的。周缘和中枢各有一系结构,病变的表现不沿神经传导的路线;病变的轻重也不随路线上地位的高低。周缘和中枢的各项结构是各自中毒的。链霉素不仅毒害位听神经一系,而更损伤其它感觉系(如三叉神经系)和运动系——特是内脏运动系——的结构。链霉素中毒是一般性的,但有些结构特易感受它的毒害。在各级结构中,神经细胞的化学合成决定它们反应链霉素的灵钝和轻重。链霉素伤害高级的脑部,这多属运动性,特是内脏运动性。间脑的内脏性核团、纹状体簇和内脏性皮质中毒特别剧烈。链霉素中毒症状广泛,这是有神经基础的。链霉素的毒质伤害全神经系,也影响全身;为医疗使用这个抗菌素,关于患者对此药的敏感,剂量和疗程是要慎重考虑的。

(1) Activities due to various neural structures in the lateral geniculate body of the cat were studied by means of glass capillary microelectrode. These structures are the presynaptic axon and various parts of the postsynaptic neuron. Aside from the usual forms of the response of these structures, less usual forms were described. Single and repetitive stimulations of the optic nerve by electrical shocks were employed as a means of differentiating pre- and post-synaptic response. (2) In substantiating a view...

(1) Activities due to various neural structures in the lateral geniculate body of the cat were studied by means of glass capillary microelectrode. These structures are the presynaptic axon and various parts of the postsynaptic neuron. Aside from the usual forms of the response of these structures, less usual forms were described. Single and repetitive stimulations of the optic nerve by electrical shocks were employed as a means of differentiating pre- and post-synaptic response. (2) In substantiating a view expressed by some workers, further evidence has been adduced to indicate that activity due to a single optic nerve fibre is capable of initiating postsynaptic discharge. However, the readiness of different neurones to fire upon the arrival of impulses from the optic tract is quite variable. In general, this variability is due not so much to the smallness of excitatory synaptic potential initiated as to the condition imposed by the mixed action of both excitatory and inhibitory input. (3) Two steps in the generation of the postsynaptic spike could be dissociated by experiment using two antidromic shocks. This offers a direct proof that the two steps are respectively generated by the initial segment of the axon and the neuron soma proper.

(一)本工作采用玻璃微电极分析了猫外膝体神經結构的电活动。一般說,突触前軸突和突触后神經原不同部分的活动,均有一定的特性,不难加以区別,但是对某些少見的情况,单个或重复电刺激祝神經仍然不失为有效的鉴別突触前和突触后活动的手段。 (二)本文提供了实驗,說明单根祝神經紆維的传入冲动,就其本身所引起的突触电位大小而言,足以引起突触后神經原发放,但是实际上能否引起突触后传导的反应,对不同的神經原和在不同的情况,有很大的差別。这些差別,主要是由于兴奋性和抑制性輸入同时作用的結果。 (三)外膝体神經原峯电位的两个成分能用二个逆行刺激的方法加以分离,这表明它們是分別在軸丘和細胞体发生的。

In the nerve cord of the shrimp Penaeus orientalis all fibers which can be discerned by light microscope are myelinated. The ratio of the diameter of the axis cylinder to that of the nerve fiber ranges between 0.6 and 0.8. Along the fibers, no structure resembling node of Ranvier or Schmidt-Lantermann incisure could be found. The myelin sheath is composed of lamellae, the repeating unit of which measures 80 A; the lamination is thus even finer than in myelin sheath of the vertebrate nerve fibres....

In the nerve cord of the shrimp Penaeus orientalis all fibers which can be discerned by light microscope are myelinated. The ratio of the diameter of the axis cylinder to that of the nerve fiber ranges between 0.6 and 0.8. Along the fibers, no structure resembling node of Ranvier or Schmidt-Lantermann incisure could be found. The myelin sheath is composed of lamellae, the repeating unit of which measures 80 A; the lamination is thus even finer than in myelin sheath of the vertebrate nerve fibres. Coarser lamellae repeating at 750 A, however, are also seen in a few regions of the shrimp myelin sheath.

对虾神經索中凡显微鏡能分辨清楚的纤維都具有明显的髓鞘。据在30微米以上的紆維的測定結果,軸索与纤維直径比約为0.6—0.8。用普通光及偏光显微鏡在固定或活构料均未能在髓鞘中找到类似郎氏节及Schmidt-Lantermann氏切迹的結构。由电子显微鏡观察得知,对虾神經纤維的髓鞘是由排列整齐而致密的、明暗交替的片层构成,片层周期为80A,暗层与明层之比为3:4。此外,在致密片层中尚能见到散在的周期为750A的寬片层区,階层与明层之比为1:5,明层中还有断续的中线。此区的形状、大小及分布情况无一定規律。

 
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