AGER and acute respiratory distress syndrome: Another study performed in mice fed a glutamine-supplemented diet (0.8 g/kg body weight from feed conversion) 10 days before intratracheal administration of hydrochloric acid plus E. coli LPS-induced ARDS showed that glutamine pretreatment reduced levels of the receptor for advanced glycation end-products (RAGE) and interleukin (IL)-1β in bronchoalveolar lavage fluid (BALF), with corresponding decreases in mRNA expression [54].