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demyelination |
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demyelination /de·my·elin·a·tion/ (de-mi″ĕ-lĭ-na´shun) destruction, removal, or loss of the myelin sheath of a nerve or nerves. Called also myelinolysis.
Demyelination Disruption or destruction of the myelin sheath, leaving a bare nerve. Results in a slowing or stopping of impulses traveling along that nerve. Mentioned in: Guillain-Barré Syndrome demyelination [dimī′əlinā′shən] Etymology: L, de + Gk, myelos, marrow the process of destruction or removal of the myelin sheath from a nerve or nerve fiber. demyelination, demyelination destruction, removal, or loss of the myelin sheath of a nerve or nerves. demyelination Demyelinization Neurology A condition in which nerve trunks are not myelinated ab initio–eg, leukodystrophy or which suffer loss after myelinization has been completed–eg, myelinoclasia. See Leukodystrophy. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Clinical EMG and NCV testing demonstrated no evidence of demyelination and normal sensory amplitudes but did indicate motor axonal loss. The changes in the serial MRI suggest a transient brain lesion, which may be due to transient demyelination, neuronal damage, or edema. Temperature-sensitive mutants of mouse hepatitis virus produce a high incidence of demyelination. |
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