Serum apolipoprotein A-1 is related to inflammatory factors in the acute phase of gout

BACKGROUNDTo observe the correlation between serum apolipoprotein A-1(apoA-1) and inflammatory factors in patients with gouty arthritis. METHODSFrom February to September 2020, 97 patients with gout (gout group) and 70 healthy controls (control group) were selected as the study subjects，who were admitted to the outpatient department of Beijing lu he hospital affiliated to capital medical university.97 patients in the gout group were in the acute phase. Serum concentrations of apoA-1, NLRP3 inflammasome （NACHT-LRR-PYD protein 3,NLRP3), interleukin-1 (IL-1) and interleukin-9 (IL-9) were detected. The correlation of serum apoA-1 concentration, gout related inflammatory factors (NLRP3, IL-1 beta, IL-9) and other clinical and laboratory indicators was analyzed. RESULTSThe serum apoA-1 concentration in the gout group was lower than that in the control group (P<0.05). With the increase of serum uric acid level, serum apoA-1 concentration decreased（R 2 =-0.3160，P<0.05）. Multiple linear analyses were performed to increase blood glucose, blood lipid, liver and kidney, etc, and the correlation remained（OR=-3.36，P<0.05）. With the increase of serum IL-1 beta concentration, serum apoA-1 concentration decreased（R 2 =-0.3993，P<0.05）. Multiple linear analyses were performed to increase blood glucose, blood lipid, liver and kidney, etc., and the correlation remained（OR=-2.95，P<0.05）. CONCLUSIONSIn the acute stage of gout, as the serum uric acid level increases, the serum IL-1β concentration increases and the apoA-1 concentration gradually decreases, which may indicate that apoA-1 participates in the inflammatory response of gout to a certain extent.