Abstract
Background: This study aimed to investigate the expression characteristics of ANGPTL8 in patients with primary nephrotic syndrome and its possible correlationwith hyperlipidemia and proteinuria.Methods: ANGPTL8 levels were determined using Enzyme‑linked immunosorbentassay in 133 subjects with PNS, and 60 subjects with healthy controls.Results: Subjects with primary nephrotic syndrome had higher levels of serum andurine ANGPTL8 than healthy controls subjects (P < 0.001). In primary nephroticsyndrome patients, serum ANGPTL8 was positively correlated with cholesterol (r =0.209, P < 0.05) and triglycerides (r = 0.412, P < 0.001), while no correlation with24hUTP. Urine ANGPTL8 was positively correlated with high density lipoprotein-cholesterol (r = 0.181, P < 0.05), while urine ANGPTL8 was significantly negativelycorrelated with creatinine (r = -0.323, P<0.001) and 24hUTP (r = -0.268, P = 0.002).Interestingly, urine ANGPTL8 concentrations were different between membranousnephropathy and mesangial proliferative glomerulonephritis pathological types.Conclusions: Serum and urine ANGPTL8 levels in primary nephrotic syndromepatients were correlated with blood lipid levels and proteinuria, respectively, suggestingthat ANGPTL8 may play a role in the development of primary nephrotic syndromehyperlipidemia and proteinuria.