ACETYLCHOLINE RECEPTOR (ACHR) MODULATING ANTIBODY

Acetylcholine is a chemical that helps muscles contract. It acts as a messenger between nerves and muscles. People who have myasthenia gravis (MG) often make an abnormal protein called acetylcholine receptor antibody. This protein interferes with how acetylcholine works. At first, this causes muscle weakness in the eye. You may have double vision or drooping eyelids. MG is an autoimmune disease because your body makes the antibody that attacks the way acetylcholine normally works.