Additionally, there was a good correlation between OEA levels and NAPE-PLD/FAAH expression ratios (Figure 1) indicating that although this NAE may be involved in the pathogenesis of endometrial cancer (1), its production is regulated by alterations in the activities of NAPE-PLD and FAAH at the tissue level rather than at the lymphocytic level. The gene discussed is FAAH; the disease is endometrial cancer.