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A demyelinating disease refers to any disease affecting the nervous system where the myelin sheath surrounding neurons is damaged. [1] This damage disrupts the transmission of signals through the affected nerves, resulting in a decrease in their conduction ability.
Demyelinating diseases of the CNS can be classified according to their pathogenesis into five non-exclusing categories: demyelination due to inflammatory processes, viral demyelination, demyelination caused by acquired metabolic derangements, hypoxic–ischaemic forms of demyelination and demyelination caused by focal compression.
Inflammatory demyelinating diseases (IDDs), sometimes called Idiopathic (IIDDs) due to the unknown etiology of some of them, are a heterogenous group of demyelinating diseases - conditions that cause damage to myelin, the protective sheath of nerve fibers - that occur against the background of an acute or chronic inflammatory process.
The ratio is much higher than that in certain areas of the world. While the early stages of multiple sclerosis are less discernible, the chronic stages can greatly reduce an individual's quality of life by limiting motor function. The demyelinating disease attacks the myelin of axons in the central nervous system through autoimmune defects.
Leukodystrophies may be classified as hypomyelinating or demyelinating diseases, respectively, depending on whether the damage is present before birth or occurs after. While all leukodystrophies are the result of genetic mutations, [3] other demyelinating disorders have an autoimmune, infectious, or metabolic etiology. [4]
Acute disseminated encephalomyelitis (ADEM), or acute demyelinating encephalomyelitis, is a rare autoimmune disease marked by a sudden, widespread attack of inflammation in the brain and spinal cord. As well as causing the brain and spinal cord to become inflamed, ADEM also attacks the nerves of the central nervous system and damages their ...
CNS demyelination autoimmune disease causes the myelin sheath to deteriorate since the sense of recognition of self is lost. The loss of the myelin insulation either disrupts or prevents neural conduction along the nerve cell's axon.
Encephalomyelitis is inflammation of the brain and spinal cord.Various types of encephalomyelitis include: Acute disseminated encephalomyelitis or postinfectious encephalomyelitis, a demyelinating disease of the brain and spinal cord, possibly triggered by viral infection.
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