IL27 and myasthenia gravis: Different investigations revealed that the serum level of interleukin 27 varies with the disease’s stage, in which its level is significantly higher than that in healthy people at the onset of the disease, which can be used as a diagnostic parameter for MG [135]; However, after treatment with intravenous immune globulin (IVIG), the IL-27 level decreases, probably due to the reduction in T cells that produce interleukin 27 (CD3+, IL27+ T cells) [136].