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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
A preliminary assessment of poly(pyrrole) in nerve guide studies
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The nerve guide copolymer was found to be non-toxic, according to ISO/EN standards, and it showed a mild foreign body reaction and complete fibrous encapsulation after implantation.
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The aim of this study is to evaluate the functional and cell biological applicability of a two-ply nerve guide constructed of a PLLA/PCL (i.e.
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This target concentration, however, will be maintained when transfected cells described in the literature to hypersecrete NGF are used, or when the microspheres are used if the permeability of the nerve guide membrane can be moderately decreased.
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The collagen tube was very efficient as a nerve guide over a 5mm facial nerve gap and shows great promise as a nerve conduit.
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| | Aim To evaluate the nerve regeneration after the implantation of a biodegradable chitosan nerve guide tube in the sciatic nerve in the rats. Methods The biodegradable nerve guide tube with diameter of 1.2 ̄1.6mm and wall of 200um was made of 2% chitosan. Sciatic nerve defects for 1.0mm long were made and bridged with the nerve guide tubes. The nonoperated sciatic nerve from the contralateral leg was used as a control. After 16 weeks, we evalua... | | 目的了解几丁糖(chitosan)在修复周围神经缺损中的作用。方法用2%水溶性几丁糖制成长1.2cm、内径1.2~1.6mm、壁厚200μm的导管,桥接大鼠坐骨神经缺损1.0cm,以对侧正常坐骨神经为对照组。术后16周进行显微解剖学、组织学、辣根过氧化物酶(HRP)示踪等检查。结果几丁糖导管内有较多的再生神经纤维,相应节段的脊髓前角可见到标记阳性的运动神经元。几丁糖导管变薄,无异物及炎症反应。结论几丁糖神经导管可为缺损神经提供良好的生长环境。 | | 文摘来源 | | Objective To observe the nerve regeneration by using chitosan nerve guide as tubing chambers to bridge the sciatic nerve defects of rats. Methods Thirty Wistar rats weighted 200±20g were chosen randomly. A 12mm defect was produced in the right sciatic nerve of each rat. Chitosam nerve guides were used to bridge the nerve defects. The left side sciatic nerves were set up as the control group. Gross observation, microanatomical observation, light micros... | | 目的 应用壳聚糖神经导引管作为神经再生室桥接大鼠坐骨神经缺损 ,观察对神经再生的作用。方法 选用体重 2 0 0± 2 0g的Wistar大鼠 30只 ,手术造成右侧坐骨神经长约 12mm的缺损 ,以壳聚糖导管桥接神经缺损 ,以左侧正常坐骨神经作为对照 ,分别于术后 4、 12、 2 4周进行大体及显微解剖观察、组织学检查、免疫组化检查、电镜观察和神经电生理测定。结果 术后大鼠右后肢感觉、运动功能有不同程度的恢复 ;光镜和电镜组织学检查发现术后 12周再生轴突已长过神经缺损间隙 ,2 4周再生完全 ,髓鞘化良好 ,神经纤维排列整齐规则 ,导管大部分被降解吸收 ;神经电生理检查在术后 2 4周记录到再生坐骨神经的复合动作电位。结论 壳聚糖神经导引管为大鼠坐骨神经再生提供一个良好的再生微环境 ,再生坐骨神经功能恢复良好 | | 文摘来源 | | WT5BZ]Degradation of poly d,l lactide in vivo and 20mm nerve gap recovered by poly d,l lactide guide were reported. The effects of nerve recovery were examined by the techniques of gross observation, tissue testing, SEM determination, and electronic physiological examination. In result that the poly d,l lactide can be effectively used as nerve guide and 20mm nerve gap successfully recovered by poly d,l lactide guide were demonstrated. | | 报道了聚 d ,l 乳酸在大鼠体内的降解 ,以及用聚d ,l 乳酸制备的神经诱导管对大鼠坐骨神经 2 0mm断缺修复的研究。通过肉眼观察、组织学检查、电镜观察、以及电生理测定等方法和手段 ,对神经诱导再生过程进行了跟踪 ,揭示了随着神经的再生聚d ,l 乳酸管形态的变化 ,且对神经修复的效果进行了评价。研究表明 :用聚d ,l 乳酸管可成功地诱导 2 0mm断缺神经得到再生修复。 | | 文摘来源 | |   | | << 更多相关文摘 |
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