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急性神经调节可恢复严重脊髓损伤后的脊髓诱导运动反应。

Acute neuromodulation restores spinally-induced motor responses after severe spinal cord injury.

机构信息

Department of Integrative Biology and Physiology, University of California, Los Angeles, CA 90095, USA; Neuroscience Department, International School for Advanced Studies (SISSA), Bonomea 265, Trieste, Italy.

Department of Neurobiology, University of California, Los Angeles, CA 90095, USA.

出版信息

Exp Neurol. 2020 May;327:113246. doi: 10.1016/j.expneurol.2020.113246. Epub 2020 Feb 11.


DOI:10.1016/j.expneurol.2020.113246
PMID:32057795
Abstract

Epidural electrical spinal stimulation can facilitate recovery of volitional motor control in individuals that have been completely paralyzed for more than a year. We recently reported a novel neuromodulation method named Dynamic Stimulation (DS), which short-lastingly increased spinal excitability and generated a robust modulation of locomotor networks in fully-anesthetized intact adult rats. In the present study, we applied repetitive DS patterns to four lumbosacral segments acutely after a contusive injury at lumbar level. Repetitive DS delivery restored the spinally-evoked motor EMG responses that were previously suppressed by a calibrated spinal cord contusion. Sham experiments without DS delivery did not allow any spontaneous recovery. Thus, DS uniquely provides the potential for a greater long-term functional recovery after paralysis.

摘要

硬膜外电脊髓刺激可以促进完全瘫痪超过一年的个体恢复随意运动控制。我们最近报道了一种名为动态刺激(Dynamic Stimulation,DS)的新型神经调节方法,该方法可短暂增加脊髓兴奋性,并在完全麻醉的成年大鼠中产生强大的运动网络调制。在本研究中,我们在腰段挫伤后立即对四个腰骶段进行重复的 DS 模式应用。重复的 DS 传递恢复了先前由校准的脊髓挫伤抑制的脊髓诱发的运动 EMG 反应。没有 DS 传递的假手术实验不允许任何自发恢复。因此,DS 为瘫痪后的长期功能恢复提供了更大的潜力。

相似文献

[1]
Acute neuromodulation restores spinally-induced motor responses after severe spinal cord injury.

Exp Neurol. 2020-2-11

[2]
Using EMG to deliver lumbar dynamic electrical stimulation to facilitate cortico-spinal excitability.

Brain Stimul. 2019-9-26

[3]
Electrical neuromodulation of the cervical spinal cord facilitates forelimb skilled function recovery in spinal cord injured rats.

Exp Neurol. 2017-5

[4]
Advantages of soft subdural implants for the delivery of electrochemical neuromodulation therapies to the spinal cord.

J Neural Eng. 2018-4

[5]
Motor cortex and spinal cord neuromodulation promote corticospinal tract axonal outgrowth and motor recovery after cervical contusion spinal cord injury.

Exp Neurol. 2017-11

[6]
Dual motor cortex and spinal cord neuromodulation improves rehabilitation efficacy and restores skilled locomotor function in a rat cervical contusion injury model.

Exp Neurol. 2021-7

[7]
An epidural stimulating interface unveils the intrinsic modulation of electrically motor evoked potentials in behaving rats.

J Neurophysiol. 2021-11-1

[8]
Electrophysiological Guidance of Epidural Electrode Array Implantation over the Human Lumbosacral Spinal Cord to Enable Motor Function after Chronic Paralysis.

J Neurotrauma. 2018-12-15

[9]
Electrophysiological biomarkers of neuromodulatory strategies to recover motor function after spinal cord injury.

J Neurophysiol. 2015-5-1

[10]
Evaluation of optimal electrode configurations for epidural spinal cord stimulation in cervical spinal cord injured rats.

J Neurosci Methods. 2015-5-30

引用本文的文献

[1]
Bridging the gap: a translational perspective in spinal cord injury.

Exp Biol Med (Maywood). 2024

[2]
Highly efficient modeling and optimization of neural fiber responses to electrical stimulation.

Nat Commun. 2024-8-31

[3]
Magnetothermal-based non-invasive focused magnetic stimulation for functional recovery in chronic stroke treatment.

Sci Rep. 2023-3-27

[4]
An epidural stimulating interface unveils the intrinsic modulation of electrically motor evoked potentials in behaving rats.

J Neurophysiol. 2021-11-1

[5]
A Biomimetic, SoC-Based Neural Stimulator for Novel Arbitrary-Waveform Stimulation Protocols.

Front Neurosci. 2021-7-29

[6]
Effect of spinal cord injury on neural encoding of spontaneous postural perturbations in the hindlimb sensorimotor cortex.

J Neurophysiol. 2021-11-1

[7]
GABAergic Mechanisms Can Redress the Tilted Balance between Excitation and Inhibition in Damaged Spinal Networks.

Mol Neurobiol. 2021-8

[8]
Selective Antagonism of A1 Adenosinergic Receptors Strengthens the Neuromodulation of the Sensorimotor Network During Epidural Spinal Stimulation.

Front Syst Neurosci. 2020-7-14

[9]
Strategies and prospects of effective neural circuits reconstruction after spinal cord injury.

Cell Death Dis. 2020-6-8

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