The Relationship Between Inflammation and Central Nervous System in Multiple Sclerosis.

Area of Science:

• Neuroscience
• Immunology
• Radiology

Background:

• Multiple sclerosis (MS) is an autoimmune demyelination disease affecting young populations, leading to progressive motor, sensory, and cognitive deficits.
• The precise pathogenesis of MS and the immune-central nervous system interplay remain incompletely understood.
• Gray matter damage is increasingly recognized alongside white matter lesions in MS patients.

Purpose of the Study:

• To investigate differences in functional connectivity patterns between relapsing-remitting MS patients during an attack phase versus a stable phase.
• To explore potential alterations in gray matter functional connectivity associated with MS relapse.

Main Methods:

• Resting-state functional magnetic resonance imaging (fMRI) data were analyzed.
• Functional connectivity was compared between two groups: patients in the attack phase (n=5) and patients in the stable phase (n=14).

Main Results:

• The attack group exhibited increased functional connectivity in several gray matter regions compared to the stable group.
• Specifically, enhanced connectivity was observed in the left fusiform, posterior cingulate, orbitofrontal cortex, left supramarginal gyrus, thalamus, and precuneus.

Conclusions:

• Patients in the inflammatory phase of MS may display heightened activation in distinct gray matter regions.
• This pattern could represent compensatory functional connections developed to mitigate clinical damage during relapse.
• The involvement of these specific regions may be linked to immune-related processes, meriting further research in larger patient cohorts.