FAAH and myeloid sarcoma: Circulating eCBs/NAEs and related enzymes were modulated by PEA intake compared to placebo among β1a-IFN-treated RR-MS patients, including significant increase in PEA, AEA, and OEA plasma levels, lower expression of FAAH, and an inverse correlation between PEA and cytokines plasma levels (Orefice et al., 2016).