All of the Following Cause Demyelination Except

Question

All of the following cause demyelination except
A) heavy-metal ion poisoning.
B) diphtheria.
C) multiple sclerosis.
D) dopamine deficiency.
E) All of these cause demyelination.

Accepted Answer

Demyelination is the loss of myelin around nerve fibers resulting in the impairment of nerve function. Dopamine deficiency is not a known cause of demyelination. Heavy-metal ion poisoning, diphtheria, and multiple sclerosis are all known causes of demyelination. Therefore, option E is incorrect.