Hepcidin and risk of anemia in CKD: a cross-sectional and longitudinal analysis in the CKiD cohort

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• 作者：Meredith A. Atkinson ; Ji Young Kim ; Cindy N. Roy ; Bradley A. Warady…
• 关键词：Chronic kidney disease ; Children ; Anemia ; Hepcidin
• 刊名：Pediatric Nephrology
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：30
• 期：4
• 页码：635-643
• 全文大小：279 KB
• 参考文献：1. Poli M, Asperti M, Ruzzenenti P, Regoni M, Arosio P (2014) Hepcidin antagonists for potential treatments of disorders with hepcidin excess. Front Pharmacol 5(86):1-3
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  9. Zaritsky J, Young B, Gales B, Wang HJ, Rastogi A, Westerman M, Nemeth E, Ganz T, Salusky IB (2010) Reduction of serum hepcidin by hemodialysis in pediatric and adult patients. Clin J Am Soc Nephrol 5(6):1010-014 CrossRef
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• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Pediatrics
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-198X

文摘

Background Hepcidin, a key iron regulatory protein, is elevated in patients with chronic kidney disease (CKD). Its role in the development and progression of the anemia of CKD in children remains poorly defined. Methods Cross-sectional and longitudinal study in children aged 1-6?years with stage 2- CKD in the Chronic Kidney Disease in Children (CKiD) cohort (n--33) with hepcidin measured at baseline and hemoglobin (HGB) measured annually at follow-up. Anemia was defined as HGB Results Hepcidin levels correlated negatively with glomerular filtration rate (GFR; r-??0.22, p--.01) and positively with ferritin (r--.67, p--.001). At the lower end of the GFR spectrum at baseline (10th percentile, 27.5?mL/min/1.73?m2), higher hepcidin was associated with a 0.87?g/dL decrease in HGB during follow-up (95?% CI ?.69, ?.05?g/dL, p--.038). At higher GFR percentiles there was no significant association between baseline hepcidin and HGB during follow-up. Among 90 non-anemic subjects at baseline, 23.3?% developed incident anemia. In subjects with GFR?≤?the median, a higher hepcidin level was associated with an increased risk of incident anemia (at the 10th percentile GFR, HR 3.471, 95?% CI 1.228, 9.810, p--.019; at the 25th percentile GFR, HR 2.641, 95?% CI 1.213, 5.750, p--.014; at the 50th percentile GFR, HR 1.953, 95?% CI 1.011, 3.772, p--.046). Among subjects with GFR at the 75th percentile or above, incrementally higher baseline hepcidin was not associated with increased anemia risk. Conclusions Higher hepcidin levels are associated with a decreased HGB and an increased risk of incident anemia, and this association is most significant among subjects with lower GFR.