IL4 and myasthenia gravis: Deng Tie-tao, who is an expert in TCM, considered that the main pathogenesis of MG was deficiency of the spleen and kidney, and that the treatment principle was to tonify the spleen and replenish the kidney.[3] The treatment performed by Professor Qian Renyi for MG by tonifying the spleen and replenishing the kidney was effective, and this may be correlated to the decrease in the level of IFN-γ, IL-4, CD4+/CD8+, and other indicators.[4] Therefore, the treatment of tonifying the kidney and replenishing the spleen has been used as the complementary medical treatment for MG.