Brain region changes following a spinal cord injury

Area of Science:

• Neuroscience
• Neurology
• Biomedical Engineering

Background:

• Brain complications frequently occur after spinal cord injury (SCI).
• The precise molecular mechanisms underlying these brain complications remain largely unknown.
• Understanding these mechanisms is crucial for developing effective treatments.

Purpose of the Study:

• To review and synthesize current knowledge on brain changes following SCI.
• To explore the molecular mechanisms contributing to these neurological deficits.
• To evaluate the potential of transcranial therapies for managing SCI-related brain issues.

Main Methods:

• Review of imaging studies (e.g., fMRI, structural MRI) assessing brain structure and function post-SCI.
• Analysis of molecular data investigating inflammatory factors and signaling pathways.
• Examination of electrophysiological recordings to understand brain activity alterations.
• Literature search on the efficacy of transcranial stimulation techniques in SCI.

Main Results:

• Imaging reveals altered functional connectivity, gray matter atrophy, and metabolic changes in brain regions after SCI.
• Molecular analysis indicates retrograde transmission of inflammatory factors and DAMPs from the injury site to the brain.
• Electrophysiology confirms abnormal brain electrical activity post-SCI.
• Transcranial therapies show promise in alleviating pain and improving motor function.

Conclusions:

• SCI induces significant structural and functional brain alterations.
• Molecular signaling pathways play a key role in SCI-induced brain pathology.
• Transcranial magnetic stimulation, transcranial direct current stimulation, and deep brain stimulation represent potential therapeutic strategies for SCI.