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Chronic exposure to neuroleptic medications may also cause demyelination. [3] Furthermore, deficiencies in vitamin B12 can result in dysmyelination. [4] [5] Demyelinating diseases are traditionally classified into two types: demyelinating myelinoclastic diseases and demyelinating leukodystrophic diseases. In the first group, a healthy and ...
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.
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.
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. [3]
Apart from myelin-directed antibodies, other serum components that can cause demyelination as well as conduction block include complement, cytokines, and other inflammatory mediators. Individuals with chronic inflammatory demyelinating polyneuropathy have a low frequency of specific antibodies, which suggests that different antibodies and ...
Central pontine myelinolysis; Other names: Osmotic demyelination syndrome, central pontine demyelination: Axial fat-saturated T2-weighted image showing hyperintensity in the pons with sparing of the peripheral fibers, the patient was an alcoholic admitted with a serum Na of 101 treated with hypertonic saline, he was left with quadriparesis, dysarthria, and altered mental status
Infectious diseases that may look similar to multiple sclerosis include HIV, Lyme disease, and syphilis. Autoimmune diseases include neurosarcoidosis, lupus, Guillain-Barré syndrome, acute disseminated encephalomyelitis, and Behçet's disease. Psychiatric conditions such as anxiety or conversion disorder may also present in a similar way.
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 ...