multiple sclerosis (ms) is a complex disease which is correlated with increasing inflammatory factors, demyelination and axonal loss. in this auto-immune disease, neuroinflammation is mediated by different types of t cells with macrophage/microglial activation and b cells involvement that interact in a collaborative manner. focal inflammation is the main cause for the onset of relapses and coul...

BACKGROUND Substantial grey matter (GM) demyelination occurs in both the cerebral cortex and spinal cord in multiple sclerosis (MS). GM demyelination also occurs in the cerebellar cortex and the deep GM nuclei of the brain. However, no study has made a direct "within subject" comparison of the extent of GM pathology between these regions. AIM To examine the extent and pattern of GM demyelinat...

In multiple sclerosis, remyelination becomes limited after repeated or prolonged episodes of demyelination. To test the effect of platelet-derived growth factor-A (PDGF-A) in recovery from chronic demyelination we induced corpus callosum demyelination using cuprizone treatment in hPDGF-A transgenic (tg) mice with the human PDGF-A gene under control of an astrocyte-specific promoter. After chron...

Schwann cells produce myelin sheath around peripheral nerve axons. Myelination is critical for rapid propagation of action potentials, as illustrated by the large number of acquired and hereditary peripheral neuropathies, such as diabetic neuropathy or Charcot-Marie-Tooth diseases, that are commonly associated with a process of demyelination. However, the early molecular events that trigger the...

We have established two mouse models of central nervous system (CNS) demyelination that differ from most other available models of multiple sclerosis (MS) in that they represent a mixture of viral and immune triggers. In the first model, ocular infection of different strains of mice with a recombinant HSV-1 that expresses murine IL-2 constitutively (HSV-IL-2) causes CNS demyelination. In the se...

BACKGROUND Histopathologic studies have shown that subpial cortical demyelination is extensive in chronic multiple sclerosis (MS). OBJECTIVE To study whether subpial cortical demyelination in MS is associated with focal or diffuse white matter (WM) pathologic features on magnetic resonance imaging (MR imaging). DESIGN Comparison of postmortem MR imaging findings with histopathologic finding...

Background: The cuprizone multiple sclerosis (MS) animal model is characteristic for toxic demyelination and represents a reversible demyelination and remyelination system. It has been shown that green tea epigallocatechin-3-gallate (EGCG) might be effective in improving the symptoms and pathological conditions associated with autoimmune inflammatory diseases in several animal models. Object...

the pathology of spinal cord injury (sci) comprises multiple processes characterized by extensive cell death and glial scar formation, which together limits axonal regeneration. in particular, variations in chronic demyelination of the lesion have been found to be largely independent of injury intensity, suggesting a secondary pathologic origin. this chronic demyelination results in progressive...