Demyelination

Demyelination is a process in which the insulating coating (myelin sheath) around the nerves is destroyed, slowing or halting the passage of nerve impulses. The myelin sheath allows nerve impulses to be sent between the brain, the spinal cord, and the nerves in the rest of the body smoothly and quickly.

Demyelination occurs in diseases such as multiple sclerosis (MS), Guillain-Barré syndrome, and chronic inflammatory demyelinating polyneuropathy (CIDP).

Last Updated: February 18, 2010

Author: Monica Rhodes

Medical Review: Anne C. Poinier, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Colin Chalk, MD, CM, FRCPC - Neurology

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