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   神经再生 在 生物学 分类中 的翻译结果: 查询用时:0.062秒
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神经再生     
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  nerve regeneration
Tissue engineering and peripheral nerve regeneration (III)
      
The process of the nerve regeneration was investigated by histological assessment, electrophysiological examination, and determination of wet weight recovery rate of the gastrocnemius muscle.
      
At the conclusion of 12 weeks, proximal and distal end of nerves were anastomosed by nerve regeneration and the conduit vanished completely.
      
The results suggest that PDLLA conduits may serve for peripheral nerve regeneration and PDLLA is a sort of hopeful candidate for tissue engineering.
      
The first axons to grow very early in the course of nerve regeneration belong primarily to the phrenic nerve which is thus reinnervating some of the denervated shoulder muscles.
      
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  neural regeneration
Expression of neurofilament gene in spinal motoneurons during neural regeneration
      
Preservation of the basal lamina is considered to be the essential factor in allowing neural regeneration in these circumstances.
      
In multiple sclerosis and experimental autoimmune encephalomyelitis levels of lipocortins are raised, suggesting their involvement in the recovery from an immunological insult or in neural regeneration.
      
The newly developed heterotopic larynx transplant model allows studies of transplant viability, rejection mechanisms and neural regeneration and functional recovery to be performed with minimal animal morbidity and lowered research costs.
      
Planarian GSK3s are involved in neural regeneration
      
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  neurotization
It was found that this chronic stress induced a decline in the locomotor, exploratory, and emotionality parameters of rats subjected to 14 days of neurotization.
      
Neurotization with 3 ipsilateral intercostal nerves was carried out in groups 1, 2 and 3.
      
Neurotization for restoration of arm function in complete cervical root avulsion
      
The results of the present study suggest that harvesting of a nerve graft by the stripper does not cause major injuries to the graft and, therefore, successful neurotization of the graft is not impaired.
      
Since each system contains a number of antagonists, a mutual blocking that is the result of the heteromorphous neurotization occurs, producing the symptoms of a residual paresis, although these "weak" muscles are well reinnervated.
      
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  axonal regeneration
Developing strategies to promote axonal regeneration is therapeutically attractive for various CNS pathologies such as traumatic brain injury, stroke and Alzheimer's disease.
      
Sural nerve biopsy revealed reduced densities of both myelinated and unmyelinated axons and teased fibres showed evidence of axonal regeneration and some remyelination.
      
Both peripheral nerve and purified populations of Schwann cells promote axonal regeneration in the peripheral and central nervous systems.
      
Inflammatory cells and their products contribute to neuronal survival and axonal regeneration after injury.
      
Following sciatic nerve transection in rats, macrophages accumulate in the corresponding dorsal root ganglion, potentially supplying neurotrophic support to nerve cell bodies, and enhancing axonal regeneration.
      
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  其他


本文研究了相干光(He-Ne激光)和非相干光(红光)对大白鼠损伤坐骨神经的再生作用。结论是波长633毫微米的红光对神经的再生起促进作用,和红光是否相干无关。

This work deals with the general pattern and specificity of the regeneration courses of sympathetic preganglionic nerves. The right cervical sympathetic trunks of adult rats were made to degenerate by local cryogenic injury. Observations were done on the fourth day, 1, 2, 3, 5, 10, 26 weeks and 1 year after injury. Assays of ACh content and ChE activity in the preganglionic terminals, terminal AChE activity by histochemical detection and the peripheral responses to the preganglionic electrical stimulations all...

This work deals with the general pattern and specificity of the regeneration courses of sympathetic preganglionic nerves. The right cervical sympathetic trunks of adult rats were made to degenerate by local cryogenic injury. Observations were done on the fourth day, 1, 2, 3, 5, 10, 26 weeks and 1 year after injury. Assays of ACh content and ChE activity in the preganglionic terminals, terminal AChE activity by histochemical detection and the peripheral responses to the preganglionic electrical stimulations all gave evidence of having two distinct phases in the regeneration courses of the sympathetic preganglionic nerves, i.e. an earlier active ongoing phase and a later slow continuing phase. At the end of the 2nd and 3rd week after injury ACh content in the preganglionic terminals recovered up to 25% and 50% of the control respectively. ChE activity gave the corresponding results. The recovery of structural features of the nerve terminals, showed by AChE histochemistry, took place somewhat earlier than those presented by functional indices. At the end of one year interval, most indices of the damaged nerves showed no full recovery of the functions. Thus it was proved that the sympathetic preganglionic nerves had active regeneration mechanisms which mimic other peripheral nerves. Both structural and functional recovery took place quickly during 2 to 3 weeks post-injury. However, regeneration could not keep on developing, only left an incomplete recovery of the damaged nerves. The lack of fully successful regenerating ability of the sympathetic preganglionic nerves is somewhat similar to that of parasympathetic ones. So, it is concluded that the regeneration courses of autonomic nervous system is specific and different from either central or other peripheral nerves.

用液氮骤冻造成大白鼠交感节前神经变性后,通过神经末梢乙酰胆碱含量、胆碱酯酶活性测定以及电刺激交感干时外周反应等研究其再生规律。结果表明冻伤后3周内再生过程进展迅速,神经结构与功能均有相当程度的恢复;3周后再生过程转慢,直至一年时各指标仍远未达到正常。这证明交感节前神经的再生过程不同于中枢及其它外周神经而独具特征。

This paper is to describe the preparing procedures and to report the prelim-inary result of an experimental model with which rat's great adductor muscle wasused as a graft to bridge the sciatic nerve gap. The model might be a new one forthe study of nerve regeneration.

本文介绍用大鼠大收肌桥接坐骨神经缺损的实验模型的制作过程及初步应用体会,以期为研究神经再生提供一种新的实验模型。

 
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