BACKGROUND:Ola rats is a kind of rats with genovariation, who displays Wallerian degeneration after peripheral neuroaxonal damage that is slower than that normal 6J rats, thereby additional damage factor may help fully understand the property of Ola rats.
背景：Ola鼠是一种基因变异鼠，其周围神经轴突损伤后华勒氏变性速度比正常的6J鼠缓慢，增加损伤因素可能有助于了解Ola鼠的特性。
No Ola rat displayed Wallerian degeneration; But medullated fiber degeneration and following neonatal small diameter medullated fibers could be observed in 6J rats.
Ola鼠没有发生华勒氏变性；而6J鼠可见有髓纤维变性和许多变性后新生小径有髓纤维。
Wallerian degeneration of the optic radiation is evident on paraatrial section of the same sequence.
，冠位 T2像示明显的视辐射华勒变性病灶。
Group 3 WEEKS was inferior, the rest won`t evident. There were a lot of collagenoblast and lymphocyte in group A. The Wallerian degeneration is manifest and the nerve regeneration is worst. Otherwise, the 9 WEEKS group shows little collagenoblast and lymphocyte. The nerve regenerated obviously.
镜下A组移植段见明显淋巴细胞浸润，纤维修复为主，神经再生最差，Wallerian变性明显；9周组，未见明显淋巴细胞浸润，纤维修复少，神经再生明显；7周组神经再生弱于9周组，5周组较7周组差，3周组再次但强于A组。
ConclutionDTI may be more sensitive in pristine wallerian degeneration of spinal cord compression and can reflact the degree of injury of spinal cord compression. DTI is more precise checking method and can provide valuable information of quantization for earlier diagnosis of spinal cord compression in vivo.
结论磁共振弥散张量成像技术对脊髓受压损伤早期发生的华勒氏变性改变较敏感，并能反应其受压损伤程度，是目前早期活体诊断脊髓受压损伤比较准确的检查方法，对脊髓压迫症能提供有价值的量化信息。
Results It showed that the electromagnetic field accelerated the course of Wallerian degeneration, Schwann's cell proliferation, regeneration of axon, myelin recovery of motor nerve conduction velosity of sciatic nerve.
结果电磁场治疗加速了损伤神经远段Wallerian变性进程，促进雪旺氏细胞增殖，促进轴索及髓鞘再生，加速运动神经传导速度的恢复。
Results: The course of Wallerian degeneration, Schwann's cell proliferation, the thickness of myelin sheath, the regeneration of axon and medullary sheath and the recovery of SFI and SNCV in ultrasound group were significantly earlier than those in control group (P0.01 or P0.05).
结果：超声组损伤神经远侧Wallerian变性进程加速、雪旺细胞增殖、变性组织吸收、轴索及髓鞘再生、感觉传导速度及坐骨神经功能的恢复等与对照组比较均提前（P0.01或P0.05）。
Objective To review the pathologic changes of Wallerian degeneration (WD) and secondary transneuronal degeneration (TD) and evaluate their MRI in central nervous system.
目的回顾沃勒变性及继发跨神经元退变的病理学改变，分析其在中枢神经系统的MRI表现。
DTI would be an effective method to detect the state and time course of Wallerian degeneration in corticospinal tract after cerebral infarction.
DTI有利于检测脑梗死后皮质脊髓束发生Wallerian变性的程度及动态演变过程。
Microscopic examination showed that the myelinated nerve fibers exhibited Wallerian degeneration and axon regeneration and the cytochondria in cylindraxile were severely injured or disappeared in group RFTC.
与N组比较，RFTC组术后有髓神经纤维的形态学以沃勒变性和再生为特点，轴索内线粒体严重损伤或消失；
Objective: To explore the value of the diffusion tensor imaging in diagnosing Wallerian degeneration.
目的：探讨磁共振弥散张量成像技术(diffusion tensor imaging，DTI)在Wallerian变性中的诊断价值。
To explore the value of the diffusion tensor imaging in diagnosing Wallerian degeneration.
目的：探讨磁共振弥散张量成像技术（diffusion tensor imaging，DTI）在Wallerian变性中的诊断价值。
Schwann cells are the glial cells in peripheral nerve system, which play a key role in wallerian degeneration and subsequent regeneration, and provide a suitable environment for regeneration.
雪旺氏细胞是周围神经系统中特有的胶质细胞，在周围神经损伤后的变性和再生中有著非常重要的作用。
Result: Wallerian degeneration was observed in the proximal and distal ends of all grafts of nerves harvested at 2 weeks post-engraftment. There were so many T lymphocyte in group A. 3 and 5 WEEK group is less. none can be seen in 7 and 9 WEEK group.
结果：术后2周，所有移植段的近端、远端均有不同程度Wallerian变性，A组移植段见明显T淋巴细胞浸润，3周，5周组次之，9周及7周组和自体组未见T淋巴细胞。
The mice were ob served afe r poisoning the axons, found the typical Wallerian degeneration.
在电镜下观察小鼠中毒后的神经轴突，发现典型的 Wallerian 变性。
Results Wallerian degeneration in the distal nerve happened at weeks right after cush. Nerve regeneration was seen at 2 weeks.
结果：钳夹后1周损伤处远段神经发生华勒变性，钳夹后2周神经纤维开始再生。
Purpose To investigate the relationship between changes of endoneurial fluid pressure (EFP) and Wallerian degeneration of the facial nerve.
目的探讨面神经损伤后神经内压与面神经Wallerian变性的关系。
The application of various MRI techniques on Wallerian degeneration after cerebral infarction, from imaging principle and pathogenesis, were reviewed in this article.
本文从成像原理及发病机制等方面，对多种磁共振成像技术在脑梗死沃勒变性中的应用进行综述。
The combination of various MR techniques can make the course of Wallerian degeneration visualization.
联合运用多种MR成像技术研究沃勒变性，可使其病程变化变得可视化。
In recent years, there were many experimental reports about pathophysiological process of Wallerian degeneration after cerebral infarction, but these studies lacked visibility.
近年来许多学者通过动物实验研究脑梗死后沃勒变性的病理生理过程，但缺乏可视性。