A 42-year-old member asked:
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what is the pathology that causes myasthenia gravis?

1 doctor answer
Dr. Charles Sturgis
29 years experience Pathology
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 on Apr 5, 2014

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