However, it appears, on the basis of recent findings, that multiple sclerosis is not only a disease of the immune system but also implies specific neurobiological factors which must be determined in studies to come.
This study also suggests that GM damage is one of the key factors associated with disability accumulation in this 'white matter' condition.
These findings suggest that gray matter loss is related to other aspects of brain pathology and has more clinical relevance than white matter atrophy in MS.
Our results indicate that plaque load did not correlate with brain weight. Unexpectedly, after adjusting for sex, age and duration of disease, correlations between total plaque load and axonal loss in both the corticospinal tract and sensory tracts were weak or absent at each level investigated. Since there was little correlation between plaque load and axonal loss, the possibility that demyelination is not the primary determinant of spinal cord axonal loss warrants consideration.
During the relapsing-remitting phase, focal lesions are at the forefront of the pathological abnormalities.
During the progressive phase, be it secondary or primary, macroscopic atrophy and axonal loss, the main explanation of the irreversible neurological disability and the expression of the diffuse, chronic and progressive degeneration of the CNS, are emerging to the first place.
As for autoimmunisation which leads to the selective destruction of myelin, is it primary or secondary to an oligodendrocytic apoptotic process?
Although it is clear that MS is caused by cells of the immune system inappropriately attacking the cells of the brain and spinal cord, much remains unknown about the disease
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