Update information.
Proteomic analysis was performed using LC-MS/MS technology from Shanghai Aiao Biotechnology Co., Ltd.. The abundance of peptide fractions in the livers of Ptges2+/+ (WT) HFD and Ptges2-/- (KO) HFD groups was quantified using unlabeled quantitative methods and differentially expressed proteins in each group were tested for significance using t-test.