Serum Hepcidin-25 and Risk of Mortality in Patients on Peritoneal Dialysis

Frontiers in Medicine

article

Zhong Zhong¹  Dan Luo¹  Ning Luo¹  Bin Li³  Dongying Fu¹  Li Fan¹  Zhijian Li¹  Wei Chen¹  Haiping Mao¹ 

[1] Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University;Key Laboratory of Nephrology, National Health Commission and Guangdong Province;Clinical Trials Unit, The First Affiliated Hospital, Sun Yat-sen University

关键词: peritoneal dialysis;    serum hepcidin-25;    mortality;    cohort study;    prognostic factor;   

DOI  :  10.3389/fmed.2021.684548

学科分类：社会科学、人文和艺术（综合）

来源: Frontiers

【 摘 要 】

Background: Increased serum hepcidin-25 level is associated with excess mortality in hemodialysis patients. However, there is a dearth of published information about its predictive effect for survival in patients on peritoneal dialysis (PD). The purpose of this study is to evaluate the association of serum hepcidin-25 with the risk of mortality in PD patients. Methods: Serum hepcidin-25 level was measured using an enzyme-linked immunosorbent assay in a prospective cohort study of PD patients with stored serum samples at baseline. Multivariate linear regression model was used to determine clinical characteristics associated with serum hepcidin-25 concentration. We evaluated the relationship between serum hepcidin-25 and all-cause mortality using a Cox proportional hazards model and the relationship between hepcidin-25 and cardiovascular (CV) and infection-related deaths using competing-risks regression models. Results: In total, 513 PD patients were included in this study. The median serum hepcidin-25 level was 40.9 (17.9–85.9) ng/mL. Body mass index and serum ferritin were positively correlated with serum hepcidin-25 levels. During a median follow-up period of 64.1 months, 122 (24%) patients died, including 61 (50%) CV deaths and 32 (26%) infection-related deaths. In multivariable analysis, patients with the highest tertile of serum hepcidin-25 had a greater risk of all-cause [adjusted hazard ratio (aHR) 1.85, 95% confidence interval (95%CI), 1.14 to 3.00, P = 0.013] and infection-related mortality (adjusted subdistribution hazard ratio [aSHR], 2.61; 95%CI, 1.01 to 6.76, P = 0.049) when compared with those in the second tertile. However, no significant relationship was observed between serum hepcidin-25 and CV mortality. Conclusions: Higher baseline serum hepcidin-25 level was associated with increased risk for all-cause and infection-related mortality in PD patients.

【 授权许可】

CC BY