Myasthenia Gravis News Community › Forums › Healthcare and Treatments › Seronegative MG: are there MG-causing antibodies undiscovered? › Reply To: Seronegative MG: are there MG-causing antibodies undiscovered?

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    My daughter has myastenia . She was sero neg for 12 years . Half a year ago they did a test for striated muscles and it showed up that my daughter has Ryanodin receptor antibodie .She do not respond on Mestinon .You could ask for that antibodie plus lrp4 ,titin and agrin