DDX41 and thymoma: In fact, the autoantibodies against AChR in an MG subject might impair a neuromuscular transmission and furthermore bring up a muscle weakness.[2] According to our present study, the AChR Abs were found to presence within 84.5% of the GMG subjects, 63% of the OMG subjects, and 94% of the MG subjects with thymoma, which are close to the results in the early reports.[20,21]