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Serum hepcidin-25 levels predict the progression of renal anemia in patients with non-dialysis chronic kidney disease.
MedLine Citation:
PMID:  22833619     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BackgroundHepcidin is associated with iron-restricted erythropoiesis. A previous cross-sectional study showed that serum hepcidin-25 levels are negatively associated with the hemoglobin concentration in non-dialysis chronic kidney disease (CKD) patients with sufficient iron stores. This longitudinal study aimed at ascertaining the association between hepcidin-25 levels and the progression of renal anemia.MethodsWe selected 335 non-dialysis CKD patients who showed hemoglobin concentrations >10 g/dL and who were not receiving erythropoiesis-stimulating agent (ESA) therapy, from among the subjects of our previous study, who had been recruited between February and June 2007 in a previous study. The primary outcome was the start of the ESA therapy or hemoglobin concentrations remaining below 10 g/dL for >3 months, by 31 December 2010. The patients were classified into high- and low-ferritin groups depending on their median ferritin levels. The Cox proportional hazard model with restricted cubic spline curve analysis was used to determine the association between hepcidin-25 levels and the outcome for each group.ResultsThe hepcidin-25 level was a significant predictor both for the high-ferritin group (P = 0.04, linearity = 0.02) and for the low-ferritin group (P = 0.04, linearity P = 0.02). The spline curve for the high-ferritin group showed that higher hepcidin-25 levels had a high log-relative hazard.ConclusionsHigher hepcidin-25 levels predict the progression of anemia in non-dialysis CKD patients with sufficient iron stores, indicating the involvement of hepcidin in the progression of anemia in non-dialysis CKD patients.
Authors:
Kakuya Niihata; Naohisa Tomosugi; Takuya Uehata; Tatsuya Shoji; Kensuke Mitsumoto; Morihiro Shimizu; Hiroaki Kawabata; Yusuke Sakaguchi; Akira Suzuki; Terumasa Hayashi; Noriyuki Okada; Yoshitaka Isaka; Hiromi Rakugi; Yoshiharu Tsubakihara
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-24
Journal Detail:
Title:  Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association     Volume:  -     ISSN:  1460-2385     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8706402     Medline TA:  Nephrol Dial Transplant     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1Department of Kidney Disease and Hypertension, Osaka General Medical Center, Osaka, Japan.
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