Polski merkuriusz lekarski : organ Polskiego Towarzystwa Lekarskiego · 2025
Hepcidin as a marker of iron status in patients with chronic kidney disease.
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Bardash Vladyslav O, Maksymets Tetiana A, Bondarenko Olha O, Kovalchuk Halyna I, Kit Zoryana M, Karpyshyn Natalia V, Sklyarov Eugen Ya
Аннотация
OBJECTIVE: Aim: To investigate hepcidin as a marker of iron status in chronic kidney disease (CKD) patients (stage 5 vs. stage 3), and to assess its association with iron injection status within the maintenance hemodialysis group.
PATIENTS AND METHODS: Materials and Methods: This cross-sectional study compared 69 hemodialysis (stage 5 CKD [G1]) and 19 non-dialysis (stage 3 CKD [G2]) patients, assessing hepcidin, ferritin and hemoglobin. As a part of their standard anemia management, patients requiring iron administration received scheduled injections of ferric carboxymaltose.
RESULTS: Results: Hemodialysis patients (G1) had significantly lower hemoglobin and higher anemia prevalence than non-dialysis patients (G2), while baseline hepcidin and ferritin levels were comparable. Importantly, hepcidin levels were above the normal range in 85,5% and 84,2% of G1 and G2 patients, respectively. Hepcidin correlated positively with ferritin in both groups (G1: ρ=0,66, p<0,001; G2: ρ=0,87, p<0,001). Within G1, recent iron injections, administered in 24 patients, were significantly associated with higher hepcidin and ferritin, but not hemoglobin, as compared to patients without additional ferric therapy (n=45) (effect size: r=0,09 [by hemoglobin], r=0,80 [by hepcidin] and r=0,58 [by ferritin]).
CONCLUSION: Conclusions: Significant iron metabolism impairment, marked by high hepcidin and ferritin prevalence, exists in both CKD stages studied. Although hemodialysis patients had lower hemoglobin, baseline hepcidin/ferritin levels were similar between groups. Within the hemodialysis group, recent iron injections were associated with increased hepcidin/ferritin but not hemoglobin. Findings suggest hepcidin may be a crucial indicator of functional iron availability in CKD, potentially offering more insight than ferritin, particularly reflecting acute changes following iron administration in hemodialysis patients.
PATIENTS AND METHODS: Materials and Methods: This cross-sectional study compared 69 hemodialysis (stage 5 CKD [G1]) and 19 non-dialysis (stage 3 CKD [G2]) patients, assessing hepcidin, ferritin and hemoglobin. As a part of their standard anemia management, patients requiring iron administration received scheduled injections of ferric carboxymaltose.
RESULTS: Results: Hemodialysis patients (G1) had significantly lower hemoglobin and higher anemia prevalence than non-dialysis patients (G2), while baseline hepcidin and ferritin levels were comparable. Importantly, hepcidin levels were above the normal range in 85,5% and 84,2% of G1 and G2 patients, respectively. Hepcidin correlated positively with ferritin in both groups (G1: ρ=0,66, p<0,001; G2: ρ=0,87, p<0,001). Within G1, recent iron injections, administered in 24 patients, were significantly associated with higher hepcidin and ferritin, but not hemoglobin, as compared to patients without additional ferric therapy (n=45) (effect size: r=0,09 [by hemoglobin], r=0,80 [by hepcidin] and r=0,58 [by ferritin]).
CONCLUSION: Conclusions: Significant iron metabolism impairment, marked by high hepcidin and ferritin prevalence, exists in both CKD stages studied. Although hemodialysis patients had lower hemoglobin, baseline hepcidin/ferritin levels were similar between groups. Within the hemodialysis group, recent iron injections were associated with increased hepcidin/ferritin but not hemoglobin. Findings suggest hepcidin may be a crucial indicator of functional iron availability in CKD, potentially offering more insight than ferritin, particularly reflecting acute changes following iron administration in hemodialysis patients.