In an experimental study of MS, it was found that after giving a high-vegetable or low-protein diet in patient with RRMS, the abundance of Lachnospiraceae in patients increased, and the production of IL-17 by CD4+ T cells significantly decreased (P = 0.04) [28], suggesting that Lachnospiraceae can reduce the inflammatory response. Here, CD4 is linked to myeloid sarcoma.