Breast cancer tissues were also found displaying over-expression of γ-glutamyl hydrolase (GGH) and fatty acid amide hydrolase (FAAH) and underexpression of TAF5-like RNA polymerase II p300/CBP-associated factor (PCAF)-associated factor 65 kDa subunit 5L (TAF5L) [103]. This evidence concerns the gene FAAH and breast cancer.