NAAA and endometritis: Activation of the ECS may also be related to subclinical inflammatory diseases, as periparturient cows with subclinical endometritis had decreased expression of the eCBs hydrolyzing enzymes N-acylethanolamine acid amidase (NAAA) and FAAH, and increased expression of NAPEPLD and CNR2/CB2 in uterus compared to controls (Bonsale et al., 2018).