|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | L4-to-L4 nerve root transfer for hindlimb hemiplegia after hypertensive intracerebral hemorrhage显示文摘There is no effective treatment for hemiplegia after hypertensive intracerebral hemorrhage.Considering that the branches of L4 nerve roots in the lumbar plexus root control the movement of the lower extremity anterior and posterior muscles,we investigated a potential method of nerve repair using the L4 nerve roots.Rat models of hindlimb hemiplegia after a hypertensive intracerebral hemorrhage were established by injecting autogenous blood into the posterior limb of internal capsule.The L4 nerve root on the healthy side of model rats was transferred and then anastomosed with the L4 nerve root on the affected side to drive the extensor and flexor muscles of the hindlimbs.We investigated whether this method can restore the flexible movement of the hindlimbs of paralyzed rats after hypertensive intracerebral hemorrhage.In a beam-walking test and ladder rung walking task,model rats exhibited an initial high number of slips,but improved in accuracy on the paretic side over time.At 17 weeks after surgery,rats gained approximately 58.2%accuracy from baseline performance and performed ankle motions on the paretic side.At 9 weeks after surgery,a retrograde tracing test showed a large number of fluoro-gold-labeled motoneurons in the left anterior horn of the spinal cord that supports the L4-to-L4 nerve roots.In addition,histological and ultramicrostructural findings showed axon regeneration of motoneurons in the anterior horn of the spinal cord.Electromyography and paw print analysis showed that denervated hindlimb muscles regained reliable innervation and walking coordination improved.These findings suggest that the L4-to-L4 nerve root transfer method for the treatment of hindlimb hemiplegia after hypertensive intracerebral hemorrhage can improve the locomotion of hindlimb major joints,particularly of the distal ankle.Findings from study support that the L4-to-L4 nerve root transfer method can effectively repair the hindlimb hemiplegia after hypertensive intracerebral hemorrhage.All animal experiments were approved by the Animal Ethics Committee of the First Affiliated Hospital of Nanjing Medical University(No.IACUC-1906009)in June 2019. | Teng-Da Qian Xi-Feng Zheng Jing Shi Tao Ma Wei-Yan You Jia-Huan Wu Bao-Sheng Huang Yi Tao Xi Wang Ze-Wu Song Li-Xin Li | 2022 | Neural Regeneration Research2022，17，6： | 3 |
| 2 | 补阳还五汤联合电针疗法对脊髓损伤大鼠运动功能恢复的研究显示文摘目的 探究补阳还五汤联合电针治疗对脊髓损伤大鼠运动功能恢复的影响。方法 采用随机数字表法,将40只SD大鼠分成假手术组(n=8)、模型组(n=8)、实验1组(n=8)、实验2组(n=8)和实验3组(n=8)。造模成功后,实验1组和实验3组予补阳还五汤灌胃,1次/d;实验2组和实验3组电针治疗,1次/d;假手术组和模型组大鼠给予与实验1组和3组等量的生理盐水灌胃治疗;干预后1d、7d、14d和28d,每组随机处死2只大鼠,作为4个亚组,采用大鼠脊髓损伤评分(Basso,Beattie&Bresnahan locomotor rating scale,BBB scale)评估每个亚组大鼠运动功能;采用苏木精-伊红染色法观察大鼠脊髓损伤后的脊髓组织形态。结果 假手术组大鼠评分无明显变化,实验1组、实验2组、实验3组7d、14d、28d的BBB评分整体高于模型组,差异有统计学意义(P<0.05)。结论 补阳还五汤联合电针疗法对脊髓损伤大鼠的运动功能恢复有促进作用。 | 苏文硕 樊光亚 肖连根 庞哲栋 董黎强 魏浩 安忠诚 | 2023 | 中国现代医生2023，61，2： | 2 |
| 3 | An ultrasound-guided percutaneous electrical nerve stimulation regimen devised using finite element modeling promotes functional recovery after median nerve transection显示文摘Percutaneous electrical nerve stimulation of an injured nerve can promote and accelerate peripheral nerve regeneration and improve function.When performing acupuncture and moxibustion,locating the injured nerve using ultrasound before percutaneous nerve stimulation can help prevent further injury to an already injured nerve.However,stimulation parameters have not been standardized.In this study,we constructed a multi-layer human forearm model using finite element modeling.Taking current density and activated function as optimization indicators,the optimal percutaneous nerve stimulation parameters were established.The optimal parameters were parallel placement located 3 cm apart with the injury site at the midpoint between the needles.To validate the efficacy of this regimen,we performed a randomized controlled trial in 23 patients with median nerve transection who underwent neurorrhaphy.Patients who received conventional rehabilitation combined with percutaneous electrical nerve stimulation experienced greater improvement in sensory function,motor function,and grip strength than those who received conventional rehabilitation combined with transcutaneous electrical nerve stimulation.These findings suggest that the percutaneous electrical nerve stimulation regimen established in this study can improve global median nerve function in patients with median nerve transection. | Xiao-Lei Chu Xi-Zi Song Yu-Ru Li Zi-Ren Wu Qi Li Qing-Wen Li Xiao-Song Gu Dong Ming | 2023 | Neural Regeneration Research2023，18，3： | 1 |
| 4 | A flexible electrode array for determining regions of motor function activated by epidural spinal cord stimulation in rats with spinal cord injury显示文摘Epidural stimulation of the spinal cord is a promising technique for the recovery of motor function after spinal cord injury.The key challenges within the reconstruction of motor function for paralyzed limbs are the precise control of sites and parameters of stimulation.To activate lower-limb muscles precisely by epidural spinal cord stimulation,we proposed a high-density,flexible electrode array.We determined the regions of motor function that were activated upon epidural stimulation of the spinal cord in a rat model with complete spinal cord,which was established by a transection method.For evaluating the effect of stimulation,the evoked potentials were recorded from bilateral lowerlimb muscles,including the vastus lateralis,semitendinosus,tibialis anterior,and medial gastrocnemius.To determine the appropriate stimulation sites and parameters of the lower muscles,the stimulation characteristics were studied within the regions in which motor function was activated upon spinal cord stimulation.In the vastus lateralis and medial gastrocnemius,these regions were symmetrically located at the lateral site of L1 and the medial site of L2 vertebrae segment,respectively.The tibialis anterior and semitendinosus only responded to stimulation simultaneously with other muscles.The minimum and maximum stimulation threshold currents of the vastus lateralis were higher than those of the medial gastrocnemius.Our results demonstrate the ability to identify specific stimulation sites of lower muscles using a high-density and flexible array.They also provide a reference for selecting the appropriate conditions for implantable stimulation for animal models of spinal cord injury.This study was approved by the Animal Research Committee of Southeast University,China(approval No.20190720001) on July 20,2019. | Guang-Wei Mao Jian-Jun Zhang Hao Su Zhi-Jun Zhou Lin-Sen Zhu Xiao-Ying Lü Zhi-Gong Wang | 2022 | Neural Regeneration Research2022，17，3： | 0 |
| 5 | Alternating current stimulation promotes neurite outgrowth and plasticity in neurons through activation of the PI3K/AKT signaling pathway显示文摘As a commonly used physical intervention,electrical stimulation(ES)has been demonstrated to be effective in the treatment of central nervous system disorders.Currently,researchers are studying the effects of electrical stimu-lation on individual neurons and neural networks,which are dependent on factors such as stimulation intensity,duration,location,and neuronal properties.However,the exact mechanism of action of electrical stimulation remains unclear.In some cases,repeated or prolonged electrical stimulation can lead to changes in the morphology or function of the neuron.In this study,immunofluorescence staining and Sholl analysis are used to assess changes in the neurite number and axon length to determine the optimal pattern and stimulation parameters of ES for neurons.Neuronal death and plasticity are detected by TUNEL staining and microelectrode array assays,respec-tively.mRNA sequencing and bioinformatics analysis are applied to predict the key targets of the action of ES on neurons,and the identified targets are validated by western blot analysis and qRT-PCR.The effects of alternating current stimulation(ACS)on neurons are more significant than those of direct current stimulation(DCS),and the optimal parameters are 3μA and 20 min.ACS stimulation significantly increases the number of neurites,the length of axons and the spontaneous electrical activity of neurons,significantly elevates the expression of growth-asso-ciated protein-43(GAP-43)without significant changes in the expression of neurotrophic factors.Furthermore,application of PI3K/AKT-specific inhibitors significantly abolishes the beneficial effects of ACS on neurons,con-firming that the PI3K/AKT pathway is an important potential signaling pathway in the action of ACS. | Hao Zhong Cong Xing Mi Zhou Zeyu Jia Song Liu Shibo Zhu Bo Li Hongjiang Yang Hongpeng Ma Liyue Wang Rusen Zhu Zhigang Qu Guangzhi Ning | 2023 | Acta Biochimica et Biophysica Sinica2023，55，11： | 0 |
| 6 | 运动任务在神经工程治疗脊髓损伤疗效评估中的应用显示文摘脊髓损伤(spinal cord injury,SCI)是脊髓结构受到外力或病变等破坏,阻断了脊髓内的上行感觉传入和下行运动输出通路,进而导致患者永久且不可逆转的感觉运动等功能丧失[1—2]。由于SCI后的自发再生能力孱弱,通过促进神经组织再生以实现功能恢复的研究极具挑战性,目前绝大部分研究仍处于动物水平,尚未出现临床有效的治疗方法[3]。 | 赵璨 包书圣 许猛 饶家声 | 2024 | 中国康复医学杂志2024，39，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员