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人工神经

人工神经的相关文献在1989年到2022年内共计186篇,主要集中在自动化技术、计算机技术、基础医学、外科学 等领域,其中期刊论文79篇、会议论文35篇、专利文献142206篇;相关期刊66种,包括瞭望、南京理工大学学报(社会科学版)、中国高新区等; 相关会议29种,包括2008年胃肠肿瘤学术研讨会、2008年北京市水文科学技术研讨会、中华医学会第五届全国创伤学术会议等;人工神经的相关文献由364位作者贡献,包括杨宇民、丁斐、李晓光等。

人工神经—发文量

期刊论文>

论文:79 占比:0.06%

会议论文>

论文:35 占比:0.02%

专利文献>

论文:142206 占比:99.92%

总计:142320篇

人工神经—发文趋势图

人工神经

-研究学者

  • 杨宇民
  • 丁斐
  • 李晓光
  • 杨朝阳
  • 顾晓松
  • 刘彬
  • 李世普
  • 王祥海
  • 郭家松
  • 严新兰
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 郭家松; 王祥海; 占小多; 潘梦婕; 胡晓芳; 陈一菁
    • 摘要: 周围神经损伤长距离缺损往往需要神经移植,因自体神经来源困难,可借助生物材料和干细胞构建人工神经治疗周围神经缺损。本课题组近年来开展了系列相关研究,均取得不同程度的治疗效果:①以自聚合肽纳米纤维水凝胶(SAPNS)填充的血管桥接1cm缺损大鼠坐骨神经,发现SAPNS可以抑制炎症、增强施万细胞迁移和轴突再生能力,从而促进损伤神经结构与功能修复的效果;②构建PLGA人工套管代替血管与SAPNS结合能达到良好的结构与功能修复效果,且发现能促进血管在桥接处的再生;③利用不同形态与空间构象的胶原蛋白构建了能同时模拟神经外膜、神经束膜和神经内膜的仿生人工神经,并实现了专利成果转让.
    • 成铖
    • 摘要: 随着科学技术的不断发展,智能化技术已应用到各行各业,本文对智能化中的人工神经网络技术在经济活动中数据处理的作用做了简单的叙述.人工神经网络的目前已具备了简单的思考力、学习和环境适应等能力,同时在大数据处理方面也具有强大的优势,适合对经济中的各项繁杂数据进行综合有效的处理,在确保准确性的基础上,得到经济活动的预测结果.
    • 陈一菁; 王祥海; 潘梦婕; 钱长晖; 李振林; 路艳蒙; 周志涛; 刘忠英; 郭家松
    • 摘要: Objective To investigate the potential of polylactic acid glycolic acid copolymer (PLGA) composite ordered multi tunnel collagen scaffold in fabricating a biomimetic artificial nerve graft to repair the sciatic nerve defects in rats.Methods The ordered multi tunnel collagen scaffold was prepared by vacuum freeze-drying and directional drawing method to simulate the epineurium;the outer conduit was prepared by PLGA to simulate the epineurium;and then,the ordered multi tunnel collagen scaffolds were loaded in the PLGA conduit (5∶1) under a stereomicroscope to develop a novel biomimetic artificial nerve.Sixty-four rats were randomly divided into four groups:artificial nerve group,PLGA group,peripheral nerve group,and non-graft control group (n=16);rats in the artificial nerve group,PLGA group,and peripheral nerve group were repaired with artificial nerve graft,hollow PLGA conduit and allogeneic sciatic nerve to bridge the sciatic nerve defect,while the sciatic nerve with the gap in rats of the control group was without any grafting.After 11 weeks of operation,the hind limbs of rats in each group were detected by behavioral test,electrophysiological examination and Fluoro-Gold retrograde tracing method.The changes of muscle tissues (gastrocnemius) were observed by hematoxylin staining and TMR-α-BTX staining,and the regenerated axons were observed by immunohistochemical staining with NF200 and the regenerative spinal anterior horn motor neurons were observed by Nissl fluorescence staining 12 weeks after operation.Results After 11 weeks of operation,the recoveries of the motor functions (the distance between the injured hindlimb and forelimb,the rotation angle of the injured foot) in the peripheral nerve group,artificial nerve group,PLGA group and control group were significantly deteriorated in turn,and the differences were statistically significant (P<0.05).Electrophysiological examination showed that the recovery effect of peripheral nerve group was the best in both latency and amplitude of the compound muscle action potential,followed by artificial nerve group.The latency of PLGA group was the longest and the amplitude of compound action potential was the smallest;significant differences were noted between each two groups (P2<0.05).At 12 weeks after operation,the wet weight ratio of muscle fibers,area of muscle fibers and neuromuscular junction area were significantly different between each two groups (P<0.05);the degree of gastrocnemius atrophy in the artificial nerve group was significantly improved than that in the PLGA group,but not yet reached the level of peripheral nerve group.NF200 immunohistochemical staining showed that a large number of NF200-positive axons were seen in the grafts of the artificial nerve group,but the number was slightly smaller than that of the peripheral nerve group;the number of regenerated axons in the PLGA group was the smaller and mainly distributed near the proximal side.In the PLGA group,only (19.33 ±6.73)% regenerated spinal anterior horn motor neurons were labeled with Fluoro-Gold,while the positive rates of Fluoro-Gold in the artificial nerve group and peripheral nerve group were (42.67±7.45)% and (50.13±4.33)%;the differences between each two groups were statistically significant (P<0.05).Conclusion The biomimetic artificial nerve made of PLGA conduit and ordered multi tunnel collagen scaffold can efficiently reconstruct the defected peripheral nerve with guiding axonal regeneration and promoting functional restoration in rats;however,its effect is poor than peripheral nerve grafting.%目的 利用聚乳酸-羟基乙酸共聚物(PLGA)复合有序多孔胶原蛋白支架制备人工神经并探讨其修复大鼠坐骨神经缺损的效果. 方法 通过真空冷冻干燥及定向拉制方法制备有序多孔胶原蛋白支架用以模拟神经束膜,使用PLGA制备导管用以模拟神经外膜,然后在体视显微镜下将有序多孔胶原蛋白支架装入PLGA导管(5∶1)制备人工神经.将制备好的64只坐骨神经缺损模型大鼠按随机数字表法分为4组:人工神经组、单纯PLGA组、同种异体神经组、对照组,每组16只,其中人工神经组、单纯PLGA组、同种异体神经组分别用制备的人工神经、PLGA空导管及同种异体坐骨神经桥接缺损神经,对照组则不做移植处理.术后11周时对各组大鼠进行行为学、神经电生理检测及荧光金逆行束路示踪.术后12周时采用苏木素染色及四甲基罗丹明-α-银环蛇毒素(TMR-α-BTX)染色观察靶区肌组织(腓肠肌),采用NF200免疫组化染色观察再生轴突及采用Nissl荧光染色观察再生脊髓前角运动神经元. 结果 术后11周时同种异体神经组、人工神经组、单纯PLGA组和对照组大鼠运动功能(前后脚间距、脚掌与前进方向的夹角)恢复情况依次变差,各组间差异均有统计学意义(P<0.05);神经电生理检测显示,无论是潜伏期还是复合动作电位波幅,均以同种异体神经组的恢复效果最好,人工神经组次之,而单纯PLGA组的潜伏期最长、复合动作电位波幅最小,各组间差异均有统计学意义(P<0.05).术后12周时各组大鼠间肌肉湿重比及肌纤维横截面积比、运动终板面积比较差异均有统计学意义(P<0.05),其中人工神经组大鼠的腓肠肌萎缩程度较单纯PLGA组有显著改善,但尚未达到同种异体神经组的水平;NF200免疫组化染色显示,人工神经组移植区可见大量的NF200阳性轴突,但数量略少于同种异体神经组,而单纯PLGA组中NF200阳性轴突数量最少,且主要分布于导管近侧端;单纯PLGA组仅有(19.33±6.73)%的再生脊髓前角运动神经元被荧光金标记,而人工神经组、同种异体神经组的荧光金阳性率分别达到(42.67±7.45)%、(50.13±4.33)%,各组间差异均有统计学意义(P<0.05). 结论 PLGA复合有序多孔胶原蛋白支架构建的人工神经能够有效地修复大鼠坐骨神经缺损,但其效果仍与同种异体神经移植有一定差距.
    • 李悦
    • 摘要: 随着社会经济的不断发展以及科学技术水平的提高,游戏产业随之迅速的发展起来,网络游戏作为一种新型的娱乐方式,具有着较强的生活模拟性和互动性,深受广大社会群众的喜爱,以及国内游戏开发商的高度重视,但是由于我国缺乏规范的游戏教育,在游戏研发投入方面的投入较少,使得中国游戏产业发展水平还远远落后于其他国家.所以,我国应该不断加强网络游戏程序的研究和设计,提升游戏产业的发展质量.基于此,本文通过对人工神经网络进行探究,并对基于人工神经网络游戏程序的设计进行分析探究.
    • 摘要: 餐桌上弃之不用的虾蟹壳有什么用?我国科学家从其中提取多糖成分制成人工神经,移植到人类肢体中,最快半年就能恢复肢体功能,待组织愈合自体神经完成生长后,这些完成使命的人工神经最多只要一年半就会在体内悄悄降解。
    • 摘要: 餐桌上弃之不用的虾蟹壳有什么用?我国科学家从其中提取多糖成分制成人工神经,移植到人类肢体中,最快半年就能恢复肢体功能,待组织愈合自体神经完成生长后,这些完成使命的人工神经最多只要一年半就会在体内悄悄降解。
    • 徐云强1; 刘迎节1; 李瑞欣2; 朱双龙1; 张振辉1
    • 摘要: 背景:周围神经缺损引起的肢体功能障碍始终是医学界面临的难题。针对修复周围神经缺损的组织工程支架仍处在研究阶段,理想的构建材料和制作工艺仍处于在探索研究中。目的:综述胶原/丝素蛋白神经导管修复周围神经缺损的研究进展。方法:由第一作者检索2003至2016年Pub Med数据库和中国知网数据库相关人工神经支架构建方法和原材料选择研究的文献,并进行总结、整理和论述。结果与结论:共纳入46篇文献。胶原蛋白具有较高的生物相容性及可降解性,自身及其降解产物在宿主内不会发生炎症反应等优点,但同时也存在生物降解速度快及物理性能差等缺点。丝素蛋白拥有较高的柔韧性和生物相容性,但其体内降解速度较缓慢。在支架制作工艺上,快速成型三维打印法可精准控制支架的孔径及其分布,孔隙结构高度整齐,可打印各种形状的支架,时间短,能够进行规模化生产。将胶原/丝素蛋白用三维打印法制备成神经支架,可保持良好生物相容性,也改善了力学性能。当今,国内外对胶原蛋白或丝素蛋白等天然生物高分子材料在神经损伤修复方面做了大量研究,同时在支架制作工艺上也不断改进,因此,胶原/丝素蛋白作为原材料并联合三维打印制作工艺有望成为未来周围神经缺损修复的主要选择方式。
    • 徐云强; 刘迎节; 李瑞欣; 朱双龙; 张振辉
    • 摘要: 背景:周围神经缺损引起的肢体功能障碍始终是医学界面临的难题。针对修复周围神经缺损的组织工程支架仍处在研究阶段,理想的构建材料和制作工艺仍处于在探索研究中。  目的:综述胶原/丝素蛋白神经导管修复周围神经缺损的研究进展。  方法:由第一作者检索2003至2016年PubMed数据库和中国知网数据库相关人工神经支架构建方法和原材料选择研究的文献,并进行总结、整理和论述。  结果与结论:共纳入46篇文献。胶原蛋白具有较高的生物相容性及可降解性,自身及其降解产物在宿主内不会发生炎症反应等优点,但同时也存在生物降解速度快及物理性能差等缺点。丝素蛋白拥有较高的柔韧性和生物相容性,但其体内降解速度较缓慢。在支架制作工艺上,快速成型三维打印法可精准控制支架的孔径及其分布,孔隙结构高度整齐,可打印各种形状的支架,时间短,能够进行规模化生产。将胶原/丝素蛋白用三维打印法制备成神经支架,可保持良好生物相容性,也改善了力学性能。当今,国内外对胶原蛋白或丝素蛋白等天然生物高分子材料在神经损伤修复方面做了大量研究,同时在支架制作工艺上也不断改进,因此,胶原/丝素蛋白作为原材料并联合三维打印制作工艺有望成为未来周围神经缺损修复的主要选择方式。%BACKGROUND:Peripheral nerve defect due to limb dysfunction has always been the difficulty faced by the medical profession. Ideal materials and processing technology for constructing a tissue engineering scaffold targeting peripheral nerve repair are stil in research stage. OBJECTIVE:To review the research progress in peripheral nerve repair using col agen/silk fibroin nerve conduits. METHODS:In this paper, the first author retrieved the PubMed and CNKI from 2003 to 2016 to search articles regarding methods of constructing artificial nerve scaffolds and selection of raw materials. Data from these articles were col ected, summarized and analyzed. RESULTS AND CONCLUSION:Forty-six articles were included for final analysis. Col agen and its degradation products trigger no inflammatory response in the host because of high biocompatibility and biodegradability. However, its use is largely limited by its rapid degradation and poor physical performance. Silk fibroin has a high flexibility and biocompatibility, and exhibits a slow degradation in vivo. As a rapid prototyping technique, three-dimensional printing can print various forms of scaffolds within a short time, characterized as high-quality pore structure and large-scale production. Given these, the col agen/silk fibroin nerve conduit prepared using the three-dimensional printing technology can maintain the biocompatibility and even improve the mechanical properties of the raw materials. Until now, more investigations on nerve repair using col agen or silk fibroin have been done, and we have never stopped improving the production process of these scaffolds. Therefore, the col agen/silk fibroin scaffold prepared using the three-dimensional printing technology is expected to become the main candidate for the repair of peripheral nerve defects.
    • 许秀华
    • 摘要: 语录1.做一个平凡而不平庸的研究者2.做研究就要做不一样的3.合作不是耍变成对方领域的专家愿景期待那么一天,三维柔性微电极技术研制的人工神经造福失能人士,为失明的双目带来光明,让瘫痪的肢体充满活力……
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