Properties of axons of sympathetic preganglionic neurons in the cat lumbar spinal cord

1975 ◽  
Vol 6 (2) ◽  
pp. 111-118
Author(s):  
V. P. Lebedev ◽  
V. A. Skobelev ◽  
T. A. Bushmarina
Keyword(s):  
Spinal Cord ◽  
Lumbar Spinal Cord ◽  
Sympathetic Preganglionic Neurons ◽  
Preganglionic Neurons ◽  
Lumbar Spinal

Intracellular recording from sympathetic preganglionic neurons in cat lumbar spinal cord

1994 ◽  
Vol 656 (2) ◽  
pp. 319-328 ◽  
Author(s):  
Paul Pilowsky ◽  
Ida J. Llewellyn-Smith ◽  
Leonard Arnolda ◽  
Jane Minson ◽  
John Chalmers
Keyword(s):  
Spinal Cord ◽  
Intracellular Recording ◽  
Lumbar Spinal Cord ◽  
Sympathetic Preganglionic Neurons ◽  
Preganglionic Neurons ◽  
Lumbar Spinal

Lipomeningocele associated with diplomyelia in a dog

2018 ◽  
Vol 46 (05) ◽  
pp. 323-329 ◽  
Author(s):  
Nele Ondreka ◽  
Sara Malberg ◽  
Emma Laws ◽  
Martin Schmidt ◽  
Sabine Schulze
Keyword(s):  
Spinal Cord ◽  
Neurological Status ◽  
Split Cord Malformation ◽  
Lumbar Spinal Cord ◽  
Histopathological Diagnosis ◽  
Type I ◽  
Thoracic Spinal Cord ◽  
Thoracic Spinal ◽  
Subcutaneous Mass ◽  
Lumbar Spinal

SummaryA 2-year-old male neutered mixed breed dog with a body weight of 30 kg was presented for evaluation of a soft subcutaneous mass on the dorsal midline at the level of the caudal thoracic spine. A further clinical sign was intermittent pain on palpation of the area of the subcutaneous mass. The owner also described a prolonged phase of urination with repeated interruption and re-initiation of voiding. The findings of the neurological examination were consistent with a lesion localization between the 3rd thoracic and 3rd lumbar spinal cord segments. Magnetic resonance imaging revealed a spina bifida with a lipomeningocele and diplomyelia (split cord malformation type I) at the level of thoracic vertebra 11 and 12 and secondary syringomyelia above the aforementioned defects in the caudal thoracic spinal cord. Surgical resection of the lipomeningocele via a hemilaminectomy was performed. After initial deterioration of the neurological status postsurgery with paraplegia and absent deep pain sensation the dog improved within 2 weeks to non-ambulatory paraparesis with voluntary urination. Six weeks postoperatively the dog was ambulatory, according to the owner. Two years after surgery the owner recorded that the dog showed a normal gait, a normal urination and no pain. Histopathological diagnosis of the biopsied material revealed a lipomeningocele which confirmed the radiological diagnosis.

Aging process of the human lumbar spinal cord: A morphometric analysis

1996 ◽  
Vol 16 (2) ◽  
pp. 106-111 ◽  
Author(s):  
Ming Zhou ◽  
Noboru Goto ◽  
Chen Zhang ◽  
Wei Tang
Keyword(s):  
Spinal Cord ◽  
Morphometric Analysis ◽  
Aging Process ◽  
Lumbar Spinal Cord ◽  
Lumbar Spinal

scholarly journals Multi-pronged neuromodulation intervention engages the residual motor circuitry to facilitate walking in a rat model of spinal cord injury

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Marco Bonizzato ◽  
Nicholas D. James ◽  
Galyna Pidpruzhnykova ◽  
Natalia Pavlova ◽  
Polina Shkorbatova ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Rat Model ◽  
Stress Responses ◽  
Learning Algorithm ◽  
Lumbar Spinal Cord ◽  
Cord Injury ◽  
Potential Synergy ◽  
Lumbar Spinal ◽  
Deep Brain

AbstractA spinal cord injury usually spares some components of the locomotor circuitry. Deep brain stimulation (DBS) of the midbrain locomotor region and epidural electrical stimulation of the lumbar spinal cord (EES) are being used to tap into this spared circuitry to enable locomotion in humans with spinal cord injury. While appealing, the potential synergy between DBS and EES remains unknown. Here, we report the synergistic facilitation of locomotion when DBS is combined with EES in a rat model of severe contusion spinal cord injury leading to leg paralysis. However, this synergy requires high amplitudes of DBS, which triggers forced locomotion associated with stress responses. To suppress these undesired responses, we link DBS to the intention to walk, decoded from cortical activity using a robust, rapidly calibrated unsupervised learning algorithm. This contingency amplifies the supraspinal descending command while empowering the rats into volitional walking. However, the resulting improvements may not outweigh the complex technological framework necessary to establish viable therapeutic conditions.

Sign in / Sign up

Export Citation Format

Share Document