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A member asked:
What is the pathology that causes myasthenia gravis?
A doctor has provided 1 answer
Autoantibodies...: Myasthenia gravis is characterized by weakness / fatigue of muscles under voluntary control. It is caused by abnormal communication between nerves and muscles. In mg, the immune system makes autoantibodies that block or destroy many of a muscles' receptor sites for a neurotransmitter called acetylcholine. With fewer receptor sites, your muscles receive fewer nerve signals resulting in weakness.
Answered 4/5/2014
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