scholarly journals Reorganization of the cortico-spinal pathway in patients with chronic complete thoracic spinal cord injury: A study of motor evoked potentials

2008 ◽  
Vol 40 (3) ◽  
pp. 208-212 ◽  
Author(s):  
DS Han ◽  
CM Li ◽  
CW Chang
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Thoracic Spinal Cord ◽  
Thoracic Spinal ◽  
Cord Injury ◽  
Spinal Pathway

Influence of cross-linked hyaluronic acid hydrogels on neurite outgrowth and recovery from spinal cord injury

2007 ◽  
Vol 6 (2) ◽  
pp. 133-140 ◽  
Author(s):  
Eric M. Horn ◽  
Michael Beaumont ◽  
Xiao Zheng Shu ◽  
Adrian Harvey ◽  
Glenn D. Prestwich ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Hyaluronic Acid ◽  
Neurite Outgrowth ◽  
Motor Evoked Potentials ◽  
Neurite Growth ◽  
Thoracic Spinal Cord ◽  
Bioactive Materials ◽  
Thoracic Spinal ◽  
Cord Injury

Object Therapies that use bioactive materials as replacement extracellular matrices may hold the potential to mitigate the inhibition of regeneration observed after central nervous system trauma. Hyaluronic acid (HA), a nonsulfated glycosaminoglycan ubiquitous in all tissues, was investigated as a potential neural tissue engineering matrix. Methods Chick dorsal root ganglia were cultured in 3D hydrogel matrices composed of cross-linked thiol-modified HA or fibrin. Samples were cultured and images were acquired at 48-, 60-, and 192-hour time points. Images of all samples were analyzed at 48 hours of incubation to quantify the extent of neurite growth. Cultures in cross-linked thiolated HA exhibited more than a 50% increase in neurite length compared with fibrin samples. Furthermore, cross-linked thiolated HA supported neurites for the entire duration of the culture period, whereas fibrin cultures exhibited collapsed and degenerating extensions beyond 60 hours. Two concentrations of the thiolated HA (0.5 and 1%) were then placed at the site of a complete thoracic spinal cord transection in rats. The ability of the polymer to promote regeneration was tested using motor evoked potentials, retrograde axonal labeling, and behavioral assessments. There were no differences in any of the parameters between rats treated with the polymer and controls. Conclusions The use of a cross-linked HA scaffold promoted robust neurite outgrowth. Although there was no benefit from the polymer in a rodent spinal cord injury model, the findings in this study represent an early step in the development of semisynthetic extracellular matrice scaffolds for the treatment of neuronal injury.

scholarly journals Sonic Hedgehog modulates the inflammatory response and improves functional recovery after spinal cord injury in a thoracic contusion–compression model

2021 ◽  
Author(s):  
Hao Zhang ◽  
Alexander Younsi ◽  
Guoli Zheng ◽  
Mohamed Tail ◽  
Anna-Kathrin Harms ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Sonic Hedgehog ◽  
Functional Recovery ◽  
Intrathecal Administration ◽  
Neuroprotective Effects ◽  
Thoracic Spinal Cord ◽  
Shh Pathway ◽  
Thoracic Spinal ◽  
Cord Injury

Abstract Purpose The Sonic Hedgehog (Shh) pathway has been associated with a protective role after injury to the central nervous system (CNS). We, therefore, investigated the effects of intrathecal Shh-administration in the subacute phase after thoracic spinal cord injury (SCI) on secondary injury processes in rats. Methods Twenty-one Wistar rats were subjected to thoracic clip-contusion/compression SCI at T9. Animals were randomized into three treatment groups (Shh, Vehicle, Sham). Seven days after SCI, osmotic pumps were implanted for seven-day continuous intrathecal administration of Shh. Basso, Beattie and Bresnahan (BBB) score, Gridwalk test and bodyweight were weekly assessed. Animals were sacrificed six weeks after SCI and immunohistological analyses were conducted. The results were compared between groups and statistical analysis was performed (p < 0.05 was considered significant). Results The intrathecal administration of Shh led to significantly increased polarization of macrophages toward the anti-inflammatory M2-phenotype, significantly decreased T-lymphocytic invasion and significantly reduced resident microglia six weeks after the injury. Reactive astrogliosis was also significantly reduced while changes in size of the posttraumatic cyst as well as the overall macrophagic infiltration, although reduced, remained insignificant. Finally, with the administration of Shh, gain of bodyweight (216.6 ± 3.65 g vs. 230.4 ± 5.477 g; p = 0.0111) and BBB score (8.2 ± 0.2 vs. 5.9 ± 0.7 points; p = 0.0365) were significantly improved compared to untreated animals six weeks after SCI as well. Conclusion Intrathecal Shh-administration showed neuroprotective effects with attenuated neuroinflammation, reduced astrogliosis and improved functional recovery six weeks after severe contusion/compression SCI.

Thoracic spinal cord injury without major bone injury associated with ossification of the ligamentum flavum

2019 ◽  
Vol 24 (1) ◽  
pp. 174-177 ◽  
Author(s):  
Masaaki Machino ◽  
Shiro Imagama ◽  
Keigo Ito ◽  
Kei Ando ◽  
Kazuyoshi Kobayashi ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Ligamentum Flavum ◽  
Thoracic Spinal Cord ◽  
Thoracic Spinal ◽  
Bone Injury ◽  
Cord Injury

Multi-limb acquisition of motor evoked potentials and its application in spinal cord injury

2010 ◽  
Vol 193 (2) ◽  
pp. 210-216 ◽  
Author(s):  
Shrivats Iyer ◽  
Anil Maybhate ◽  
Alessandro Presacco ◽  
Angelo H. All
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Cord Injury

Hyperbaric Oxygen Therapy After Acute Thoracic Spinal Cord Injury

Spine ◽  
2018 ◽  
Vol 43 (8) ◽  
pp. E442-E447 ◽  
Author(s):  
Asdrubal Falavigna ◽  
Manuela Peletti Figueiró ◽  
Pedro Guarise da Silva ◽  
Lucas Piccoli Conzatti ◽  
Elisa Braun Rizkalla ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Hyperbaric Oxygen ◽  
Hyperbaric Oxygen Therapy ◽  
Oxygen Therapy ◽  
Thoracic Spinal Cord ◽  
Thoracic Spinal ◽  
Cord Injury

scholarly journals Bone Marrow-Derived Monocytes Drive the Inflammatory Microenvironment in Local and Remote Regions after Thoracic Spinal Cord Injury

2019 ◽  
Vol 36 (6) ◽  
pp. 937-949 ◽  
Author(s):  
Diana M. Norden ◽  
Timothy D. Faw ◽  
Daniel B. McKim ◽  
Rochelle J. Deibert ◽  
Lesley C. Fisher ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Bone Marrow ◽  
Spinal Cord Injury ◽  
Thoracic Spinal Cord ◽  
Inflammatory Microenvironment ◽  
Thoracic Spinal ◽  
Cord Injury
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