Site of Nerve Division Affects Pain-Related Behavior and Spinal Cord Glial Proliferation after C7 Neurotomy in a Rat Stroke Model.

Pain Res Manag

Department of Microsurgery, Orthopedic Trauma and Hand Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Road, Guangzhou 510080, China.

Published: April 2022


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Objective: This study aimed to evaluate whether the site of C7 neurotomy affects spinal cord glial cell activation and pain-related behavior on the paralyzed side in a rat stroke model.

Methods: After middle cerebral artery occlusion (MCAO) was induced in male Sprague-Dawley rats, they underwent C7 neurotomy 0, 2, and 4 mm distal to the intervertebral foramen on the paralyzed side. Pain-related behavior and immunofluorescence examination of spinal cord glial cell activation in the ipsilateral C7 dorsal horn were evaluated.

Results: Mechanical paw withdrawal threshold (MPWT) was lower, and the number of microglia and astrocytes (/mm) was higher as the distance between the site of C7 neurotomy and the intervertebral foramen decreased from 4 mm to 0.

Conclusion: The site of C7 neurotomy affects MPWT and spinal cord glial proliferation in rats with MCAO. Nerve division closer to intervertebral foramen resulted in lower MPWT and higher degree of glial proliferation in the spinal cord.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8967577PMC
http://dx.doi.org/10.1155/2022/7446482DOI Listing

Publication Analysis

Top Keywords

spinal cord
20
cord glial
16
pain-related behavior
12
glial proliferation
12
site neurotomy
12
intervertebral foramen
12
nerve division
8
rat stroke
8
glial cell
8
cell activation
8

Similar Publications

BackgroundSpinal cord injury is a complex condition affecting millions globally, often requiring extensive rehabilitation. YouTube is increasingly utilized by spinal cord injury-patients and caregivers for rehabilitation information, despite potential misinformation risks. However, few studies have assessed the quality of spinal cord injury -related content on this platform.

View Article and Find Full Text PDF

Clinical Efficacy of Stem Cell Therapy in Neurotraumatic and Neurodegenerative Conditions: A Comparative Review.

Tissue Eng Regen Med

September 2025

Department of Biomedical Science, Catholic Kwandong University, 24 Beomil-ro 579beon-gil, Gangneung-si, Gangwon-do, South Korea.

Background: Neurotraumatic conditions, such as spinal cord injury, brain injury, and neurodegenerative conditions, such as amyotrophic lateral sclerosis, pose a challenge to the field of rehabilitation for its complexity and nuances in management. For decades, the use of cell therapy in treatment of neurorehabilitation conditions have been explored to complement the current, mainstay treatment options; however, a consensus for standardization of the cell therapy and its efficacy has not been reached in the medical community. This study aims to provide a comparative review on the very topic of cell therapy use in neurorehabilitation conditions in an attempt to bridge the gap in knowledge.

View Article and Find Full Text PDF

Isolated spinal aneurysms with spontaneous regression.

Neurosurg Rev

September 2025

Department of Diagnostic and Interventional Neuroradiology, University Hospital Tübingen, Tübingen, Germany.

Purpose: To share our clinical experience with conservative management of isolated spinal arterial aneurysms (ISAs) and to identify clinical scenarios where conservative management may be appropriate, in the context of a literature review.

Methods: We performed a retrospective review of spinal angiograms from two German neuroradiology centers and conducted a systematic literature review of reported ISA cases. We analyzed demographics, clinical presentation, imaging findings, treatments, and outcomes.

View Article and Find Full Text PDF

Surface electromyography (sEMG) holds great potential in walking function evaluation. Compressed sensing (CS) leverages the sparsity of signals to decrease the number of samples required. In this study, a sEMG CS algorithm for spinal cord injury (SCI) patients based on regularized orthogonal matching pursuit (ROMP) was introduced.

View Article and Find Full Text PDF

Voltage-gated K channels of the Kv2 family coassemble with electrically silent KvS subunits in specific subpopulations of brain neurons, forming heteromeric Kv2/KvS channels with distinct functional properties. Little is known about the composition and function of Kv2 channels in spinal cord neurons, however. Here, we show that while Kv2.

View Article and Find Full Text PDF