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David Plaut: Off the Cuff

Iron Deficiency and Hepcidin

Published July 21, 2014 11:00 AM by David Plaut

Iron deficiency (ID) is relatively common among the elderly population, contributing substantially to the high prevalence of anemia observed in the last decades of life, which in turn has important implications both on quality of life and on survival. In elderly subjects, ID is often multifactorial (i.e., due to multiple concurring causes, including inadequate dietary intake or absorption, occult bleeding, medications).

Moreover, because of the typical multi-morbidity of aged people, other conditions leading to anemia frequently coexist and make diagnosis of ID particularly challenging. Treatment of ID is also problematic in elderly, since response to oral iron is often slow, with a substantial fraction of patients showing refractoriness and requiring cumbersome intravenous administration. In the last decade, the discovery of the iron regulatory hormone hepcidin (an acute-phase reacting protein) has revolutionized our understanding of iron pathophysiology.

In serum samples, age- and gender-dependent reference values were determined using serum samples from healthy volunteers (n = 231). Hepcidin is stable for 1 day at room temperature, 6 days at +4°C and at least 42 days at -20°C. Breakfast and the type of sampling device do not affect hepcidin concentration. Reference values for females aged 18-50 years were 0.4-9.2 nmol/L, for those >50 years 0.7-16.8 nmol/L and for males ≥18 years 1.1-15.6 nmol/L.


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posted by David Plaut


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