MPO and Sepsis: The initial objective of this work was to investigate the synthesis of phosphatidylcholine (PC) and dipalmitoylphosphatidylcholine (DPPC) by the gastric mucosa in a rat model of LPS-induced sepsis, as well as the possible involvement of arachidonic acid metabolites (prostaglandin E2 [PGE2], prostaglandin I2 [PGI2], thromboxane B2 [TXB2], leukotriene B4 [LTB4]), myeloperoxidase (MPO) as an index of leukocyte infiltration, inflammation-related mediator PLA2, and malondialdehyde (MDA) in gastric mucosal damage.