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神经纤维再生
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  nerve fiber regeneration
     But from the sixth week on the connective tissue in group A is less than those in group B, and the nerve fiber regeneration of group A is better. The connective tissue of group B increases obviously.
     从第6周起,A组较B组结缔组织少,神经纤维再生好。
短句来源
     Objective: To study the nerve fiber regeneration after allogenic peripheral nerve transplantation.
     目的:探讨异体坐骨神经移植后神经纤维再生
短句来源
     The nerve fiber regeneration of neurons at sensorimotor area and rubrum nuclei in brain was observed with retrograde tracing of fluorogold;
     用荧光金逆行标记法观察大脑感觉运动区和脑干红核的神经元神经纤维再生 ;
短句来源
     AIM:To study the nerve fiber regeneration after pig skin grafting and the promotive effect of methycobal on it so as to improve the sensory functional recovery after skin grafting.
     目的:为改善植皮后感觉功能恢复,研究猪皮肤移植后神经纤维再生及甲钴胺对其再生的促进作用。
短句来源
     At postoperative 1, 4 and 8 week, eight rats from every group were harvested for wet muscle weight in bilateral triceps by randomized. The nerve fiber regeneration speed was evaluated at the first week after operation. Myelin sheath cross section acreage and thickness were checeked and analysed under electron microscopy at 4 weeks postlesion.
     术后1周、4周和8周从每组随机取8只大鼠,检测每只大鼠双侧小腿三头肌湿重、术后1周时测神经纤维再生速度、术后4周时电镜检测髓鞘横截面积和髓鞘厚度。
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  “神经纤维再生”译为未确定词的双语例句
     The accuracy rate of nerve regeneration was (59.31 ± 13.21)% and (59.39 ± 24.16)% in young group, (78.26 ± 12.41)% and (84.28 ± 9.01)% in adult group respectively.
     幼年组神经纤维再生准确率分别为 (5 9.3 1± 13 .2 1) %和 (5 9.3 9± 2 4.16) % ,成年组分别为 (78.2 6± 12 .41) %和(84.2 8± 9.0 1) % ;
短句来源
     At 30 weeks after operation,the recover rate of amplitude and conduction velocity of proximal regenerative nerve fibers reached respectively to 88.8% and 94.38% of normal values.
     术后30周受神经近端再生纤维幅值恢复率和传导速度分别达到正常的88.8%和94.38%。 结论:感觉神经端侧吻合后能再生有功能的神经纤维,再生速度稍慢。
短句来源
     Objective To identify the cellular distribution of a my elin-associated protein (Nogo-A) in the central nervous system (CNS) of mice a nd explore its possible inhibition on the CNS axon regeneration after spinal cor d injury.
     目的 确定髓鞘关联蛋白Nogo -A在小鼠中枢神经系统 (CNS)细胞水平的分布特点 ,探讨Nogo -A蛋白在脊髓损伤后在CNS神经纤维再生中的作用。
短句来源
     Conclusions After splenic autotransplantation, the NPY+ nerve fibers could be regeneration in the autotransplants tissue.
     结论  自体脾组织移植后可实现NPY+ 神经纤维再生 ;
短句来源
     ①Histological silver staining manifested that all the animals apart from the normal rats had an obvious regeneration of injured axons, but the regenerated fiber in model and DF12 control group aligned in disorder and windingly, while the newborn axons in OEC group presented the superiority in quality and quantity after transplantation for 8 weeks;
     ①组织学检查嗜银染色结果:移植8周后除正常组外,其余各组均可见明显的神经纤维再生,但模型组、DF12对照组大部分纤维排列紊乱如乱发状,明显迂曲; 而嗅鞘细胞组新生轴突明显,无论数量还是质量都优于模型组及DF12对照组。
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     (4) The number of regenerating fibers was prominently increased.
     明显增加了再生神经纤维的数目。
短句来源
     Myelination on regenerated nerve fibers was investigated under electronic microscope.
     电镜观察再生神经纤维的髓鞘形成。
短句来源
     Regenerated Polyester Fibres
     再生聚酯纤维
短句来源
     Recycling Patents
     再生专利
短句来源
     The activity of the nerve fibers
     神经纤维的活动
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  nerve fiber regeneration
These findings suggest that normal microtubule turnover is necessary for Schwann cells during nerve fiber regeneration.
      
However, nerve fiber regeneration and growth followed an entirely erratic pattern as evidenced by sometimes extensive fiber convolutions.
      
The biosynthesis of GalCe-OH was greatly enhanced during nerve fiber regeneration and decreased rapidly with increasing age.
      


Two series of experiments were carried out on 109 young female albinorats.In the first series the spinal cord was hemisected at the mid-thoraciclevel and examined from 1 hour to 240 days after operation for degenerationand regeneration.In the second series the spinal cord was transected at themid-thoracic level.In order to influence the condition of scar tissue,segmentsof degenerated sciatic nerve were used as grafts for auto- and homo-trans-plantations.In the latter case some of the grafts were stored in ice-box...

Two series of experiments were carried out on 109 young female albinorats.In the first series the spinal cord was hemisected at the mid-thoraciclevel and examined from 1 hour to 240 days after operation for degenerationand regeneration.In the second series the spinal cord was transected at themid-thoracic level.In order to influence the condition of scar tissue,segmentsof degenerated sciatic nerve were used as grafts for auto- and homo-trans-plantations.In the latter case some of the grafts were stored in ice-box (2℃)for 2 days before grafting.After 7 to 120 days the effects of different trans-plantations on regeneration were studied.Sections of the specimens were pre-pared by a modified Glees' silver impregnation method,and some were coun-terstained with Mallory's triple stain.One hour after injury,some of the cut ends of the nerve fibers swelledand showed increased argyrophilia.Six hours later typical Cajal's retractionballs were found at the cut ends of some fibers.Later on they detached them-selves from the axons and broke into fragments and disappeared gradually.Twenty-four hours after injury some ascending fibers showed Walleriandegeneration.On the third day a great number of them had degenerated andthe maximum degeneration was observed on the fifth day.The fragments ofWallerian degeneration persisted for a long time.Twenty-four hours after the operation a few regenerating fibers withgrowth cones at their tips were observed.It was found that as the regenera-tion proceeded some of the regenerating fibers degenerated and disappeared.Transplantation of segments of degenerated nerves resulted in alteration of the structure of scar tissue and enabled regenerating fibers grow along thelong axis of the cord.Most regenerating fibers that grew into the transplantscame from the dorsal root,only a small portion came from the cord proper.The number of regenerating fibers in the transplants varied with their posi-tion,the occurrence of necrosis within them and density of the surroundingscar.It was found that auto-transplantation had the best effect,homo-trans-plantation after cold storage came next and homo-transplantation without coldstorage produced the least effect.It was found that the regenerative capacity of the spinal cord was com-paratively slight and that the nerve fibers did not regenerate uniformly.Mostregenerating fibers in the scar tissue came from dorsal funiculus,some origi-nated from the ventral horn cells,only few of them came from the graymatter and the fasciculus proprius.Other fibers regenerated only occasionally.Transection of spinal cord resulted in paralysis of the hindlimbs but reflexactivity remained intact.In animals whose spinal cord had been hemisected,the coordination of locomotion was recovered in a few days.It is evident,that the central nervous system of albino rat possesses remarkable compensatorypower.The factors causing the failure of regeneration in the central nervoussystem are discussed.

1.本报告系采用体重70—100克较幼的雌性大白鼠,在第6—8胸椎平面半切断脊髓,手术后1小时至240天分期取出脊髓,用改良的Marsland,Glees及Erikson的石蜡镀银法染色,也有部分用Mallory三色法复染,系统观察脊髓内轴突的溃变和再生。另外用已溃变的坐骨神经进行自体、同种和冷藏后再行同种移植的方法来填补脊髓的缺损,观察不同的移植方法和移植块对脊髓再生的影响。2.脊髓内少数纤维的断端,在损伤后1小时初显改变,6小时已形成Cajal式典型的缩回球,24小时已有少数缩回球和轴突分离,经破裂成碎片而逐渐消失。从15天以后,各期都看到少数再生纤维的尖端形成嗜银性很强的类似缩回球的肿大,此现象在240天仍继续发出。3.切断纤维的两端都能形成缩回球,其形状、部位和纤维的直径有密切的关系。棒状缩回球主要由粗纤维形成,离切口较远;球状缩回球大部分紧靠切口的边缘,由细纤维的断端所形成。4.损伤后24小时,少数上行纤维开始华氏溃变,第3天有显著的增加,第5天已达最高峰。华氏溃变产生的碎片的消失极为缓慢,在240天仍有部分碎片散布在结节状肿大的纤维之间。5.带有生长锥的分枝再生纤维,在手术后24小时开始形成,但数...

1.本报告系采用体重70—100克较幼的雌性大白鼠,在第6—8胸椎平面半切断脊髓,手术后1小时至240天分期取出脊髓,用改良的Marsland,Glees及Erikson的石蜡镀银法染色,也有部分用Mallory三色法复染,系统观察脊髓内轴突的溃变和再生。另外用已溃变的坐骨神经进行自体、同种和冷藏后再行同种移植的方法来填补脊髓的缺损,观察不同的移植方法和移植块对脊髓再生的影响。2.脊髓内少数纤维的断端,在损伤后1小时初显改变,6小时已形成Cajal式典型的缩回球,24小时已有少数缩回球和轴突分离,经破裂成碎片而逐渐消失。从15天以后,各期都看到少数再生纤维的尖端形成嗜银性很强的类似缩回球的肿大,此现象在240天仍继续发出。3.切断纤维的两端都能形成缩回球,其形状、部位和纤维的直径有密切的关系。棒状缩回球主要由粗纤维形成,离切口较远;球状缩回球大部分紧靠切口的边缘,由细纤维的断端所形成。4.损伤后24小时,少数上行纤维开始华氏溃变,第3天有显著的增加,第5天已达最高峰。华氏溃变产生的碎片的消失极为缓慢,在240天仍有部分碎片散布在结节状肿大的纤维之间。5.带有生长锥的分枝再生纤维,在手术后24小时开始形成,但数量极少。有一些分枝的再生纤维继续生存150天或更长。在再生过程中经常有少数再生纤维发生溃变而消失。6.移植已溃变的神经能够部分改变脊髓内瘢痕的结构,使再生纤维沿着脊髓纵轴生长,有利于纤维的再生;但是移植块常引起较严重的炎性反应,被致密的结缔组织所包绕,阻碍再生纤维长入移植块。7.长入移植块的再生纤维,极大部分来自后根,少数东自后索,也有一些可能来自灰质。移植块内再生纤维的数量是随着移植块所在的部位、放置的方向、周围瘢痕的致密程度及是否发生局部坏死而转移。8.自体移植的效果最好,淋巴细胞的浸润比较轻,再生纤维最丰富。冷藏后同种移植的次之。同种移植由于在移植块中心常发生局部坏死而引起较严重的炎性反应,影响了再生纤维的长入。9.脊髓内神经纤维的再生能力较微弱而且是不一致的,瘢痕内的再生纤维以后索的上行纤维来的较多,前角细胞次之,极少的来自灰质和固有束,其他纤维的再生更为少见。脊神经的后根常有大量的再生纤维长入瘢痕。10.脊髓侧索在损伤后15天初显收缩,随后更为显著。其收缩的程度在近侧段和远侧段相似,在90天受伤侧的侧索的厚度只有正常侧的一半左右。11.所有全切断脊髓和移植动物,除呈现反射活动外,都没有发现后肢的协调运动;但是全部脊髓半切断动物在手术后3—7天都已经恢复正常的协调步态。可见大白鼠的中枢神经系是具有高度的代偿机能。12.中枢神经系再生失败的原因曾加以讨论。

Posterior cricoarytenoid muscle reinnervation surgical procedures were performed in 17 adult mongrel dogs. There are three different kinds of transplants to be investigated: the nerve-muscle pedicle procedure described by Tucker recently in 10 dogs; free muscle bloek graft in 2 dogs; and the sternothyroid branch of the ansa hypoglossi implantation in 5 dogs. The functional recovery status of posterior cricoarytenoid muscle were evaluated by using endocopic, electromyographic, histochemical, and histologic means....

Posterior cricoarytenoid muscle reinnervation surgical procedures were performed in 17 adult mongrel dogs. There are three different kinds of transplants to be investigated: the nerve-muscle pedicle procedure described by Tucker recently in 10 dogs; free muscle bloek graft in 2 dogs; and the sternothyroid branch of the ansa hypoglossi implantation in 5 dogs. The functional recovery status of posterior cricoarytenoid muscle were evaluated by using endocopic, electromyographic, histochemical, and histologic means. The nerve-muscle pedicle group and the sternothyroid branch of the ansa hypoglossi group were successful to show evidence of reinnervation of the denervated posterior cricoarytenoid musele, but the free muscle block group failled. Conclusions of the study include the following points; 1. The nerve-muscle pedicle group resulted in reinnervation of the posterior cricoarytenoid muscle by nerve regeneration and sprouting rather than by the motor end-plate itself. 2. The nerve implantation group resulted in reinnervation of the posterior cricoarytenoid muscle by nerve regeneration. 3. Free muscle block graft did not result in vocal cord abduction.

目前对神经肌蒂移植至环杓后肌术后声带外展的机制有争议。本文实验结果证明神经肌蒂移植能恢复环杓后肌神经支配及声带外展,但其机制是通过肌蒂中切断的神经纤维的再生和未切断的神经纤维发出芽支二种方式,长入环杓后肌形成新的运动终板而恢复环杓后肌的功能。本文舌下神经袢胸骨甲状肌支植入环杓后肌的实验尚未见有文献报道。

This study is to compare the effect of the nerve fibre regeneration of vascularised facial nerve grafts with that of non-vascularisod facial norve grafts, and to observe the regeneration process of nerve fibre at different time after operation by means of animal experiments in histologic and pathologic-morphology, so as to provide the experimental and theoretical basis for clinical vascularised facial nerve grafting. The experimental results indicate that the vascularised facial nerve grafting group is superioc...

This study is to compare the effect of the nerve fibre regeneration of vascularised facial nerve grafts with that of non-vascularisod facial norve grafts, and to observe the regeneration process of nerve fibre at different time after operation by means of animal experiments in histologic and pathologic-morphology, so as to provide the experimental and theoretical basis for clinical vascularised facial nerve grafting. The experimental results indicate that the vascularised facial nerve grafting group is superioc to the non-vascula rised facial nerve grafting group in the recovery rate of nerve bundle area, the rate of regeneration of nerve fibre, the rate of denisity of nerve fibers, the recovery rate of diameter of myelinated nerve fibres and so on. This suggested that the vasculatised facial nerve grafting should be chosen when facial nerve gaP is long or blood supply is poor in the receired bed.

本研究应用动物实验从组织病理形态方面比较带血管面神经移植与不带血管面神经移植后神经纤维再生的效果,并观察神经移植术后不同时间神经纤维的再生恢复过程,为临床带血管面神经移植提供实验和理论依据。实验结果表明:神经束内面积恢复率,神经纤维再生率,有髓神经纤维再生率,神经纤维密度率及有髓神经纤维直径恢复率等项数值均证明,带血管面神经移植组显著优于不带血管神神经移植组。提示:在临床上当长段的神经缺损,以及受纳床血供差的情况下应考虑作带血管的面神经移植。

 
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