scholarly journals Reduced Field of View Diffusion Tensor Imaging and Fiber Tractography of the Pediatric Cervical and Thoracic Spinal Cord Injury

2018 ◽  
Vol 35 (3) ◽  
pp. 452-460 ◽  
Author(s):  
Mahdi Alizadeh ◽  
Joshua Fisher ◽  
Sona Saksena ◽  
Yusra Sultan ◽  
Chris J. Conklin ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Field Of View ◽  
Fiber Tractography ◽  
Thoracic Spinal Cord ◽  
Thoracic Spinal ◽  
Cord Injury

Diffusion Tensor Imaging and Fiber Tractography of Patients with Cervical Spinal Cord Injury

2010 ◽  
Vol 27 (11) ◽  
pp. 2033-2040 ◽  
Author(s):  
Yongmin Chang ◽  
Tae-Du Jung ◽  
Dong Soo Yoo ◽  
Jung Keun Hyun
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Cervical Spinal Cord ◽  
Cervical Spinal Cord Injury ◽  
Fiber Tractography ◽  
Cord Injury

scholarly journals NT3-chitosan enables de novo regeneration and functional recovery in monkeys after spinal cord injury

2018 ◽  
Vol 115 (24) ◽  
pp. E5595-E5604 ◽  
Author(s):  
Jia-Sheng Rao ◽  
Can Zhao ◽  
Aifeng Zhang ◽  
Hongmei Duan ◽  
Peng Hao ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Motor Neurons ◽  
Functional Recovery ◽  
De Novo ◽  
Diffusion Tensor ◽  
Neural Regeneration ◽  
Thoracic Spinal Cord ◽  
Thoracic Spinal ◽  
Cord Injury

Spinal cord injury (SCI) often leads to permanent loss of motor, sensory, and autonomic functions. We have previously shown that neurotrophin3 (NT3)-loaded chitosan biodegradable material allowed for prolonged slow release of NT3 for 14 weeks under physiological conditions. Here we report that NT3-loaded chitosan, when inserted into a 1-cm gap of hemisectioned and excised adult rhesus monkey thoracic spinal cord, elicited robust axonal regeneration. Labeling of cortical motor neurons indicated motor axons in the corticospinal tract not only entered the injury site within the biomaterial but also grew across the 1-cm-long lesion area and into the distal spinal cord. Through a combination of magnetic resonance diffusion tensor imaging, functional MRI, electrophysiology, and kinematics-based quantitative walking behavioral analyses, we demonstrated that NT3-chitosan enabled robust neural regeneration accompanied by motor and sensory functional recovery. Given that monkeys and humans share similar genetics and physiology, our method is likely translatable to human SCI repair.

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

scholarly journals Noninvasive diffusion tensor imaging of evolving white matter pathology in a mouse model of acute spinal cord injury

2007 ◽  
Vol 58 (2) ◽  
pp. 253-260 ◽  
Author(s):  
Joong Hee Kim ◽  
David N. Loy ◽  
Hsiao-Fang Liang ◽  
Kathryn Trinkaus ◽  
Robert E. Schmidt ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Mouse Model ◽  
Diffusion Tensor ◽  
Acute Spinal Cord Injury ◽  
Cord Injury ◽  
White Matter Pathology

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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