Results of an international round robin for the quantification of serum non-transferrin-bound iron: Need for defining standardization and a clinically relevant isoform

Lieu, 2001, The roles of iron in health and disease, Mol. Aspects Med., 22, 1, 10.1016/S0098-2997(00)00006-6 Breuer, 2000, The importance of non-transferrin bound iron in disorders of iron metabolism, Transfus. Sci., 23, 185, 10.1016/S0955-3886(00)00087-4 Grootveld, 1989, Non-transferrin-bound iron in plasma or serum from patients with idiopathic hemochromatosis: characterization by high performance liquid chromatography and nuclear magnetic resonance spectroscopy, J. Biol. Chem., 264, 4417, 10.1016/S0021-9258(18)83758-9 Hershko, 1998, Pathophysiology of iron overload, Ann. N.Y. Acad. Sci., 850, 191, 10.1111/j.1749-6632.1998.tb10475.x Wang, 1986, Non-transferrin-bound iron in long-term transfusion in children with congenital anemias, J. Pediatr., 108, 552, 10.1016/S0022-3476(86)80832-0 McNamara, 1999, Non-transferrin-bound iron and hepatic dysfunction in African dietary iron overload, J. Gastroenterol. Hepatol., 14, 126, 10.1046/j.1440-1746.1999.01830.x Durken, 1997, Nontransferrin-bound iron in serum of patients receiving bone marrow transplants, Free Radic. Biol. Med., 22, 1159, 10.1016/S0891-5849(96)00497-2 Aruoma, 1988, Nontransferrin-bound iron in plasma from hemochromatosis patients: effect of phlebotomy therapy, Blood, 72, 1416, 10.1182/blood.V72.4.1416.1416 Hider, 2002, Nature of non-transferrin-bound iron, Eur. J. Clin. Invest., 32, 50, 10.1046/j.1365-2362.2002.0320s1050.x de Valk, 2000, Non-transferrin-bound iron is present in serum of hereditary haemochromatosis heterozygotes, Eur. J. Clin. Invest., 30, 248, 10.1046/j.1365-2362.2000.00628.x Fiorelli, 2002, Red blood cell antioxidant and iron status in alcoholic and nonalcoholic cirrhosis, Eur. J. Clin. Invest., 32, 21, 10.1046/j.1365-2362.2002.0320s1021.x de Valk, 1999, Iron, atherosclerosis, and ischemic heart disease, Arch. Int. Med., 159, 1542, 10.1001/archinte.159.14.1542 Chua, 2004, Nontransferrin-bound iron uptake by hepatocytes is increased in the Hfe knockout mouse model of hereditary hemochromatosis, Blood, 104, 1519, 10.1182/blood-2003-11-3872 Kooistra, 2002, Non-transferrin-bound iron in the plasma of haemodialysis patients after intravenous iron saccharate infusion, Eur. J. Clin. Invest., 32, 36, 10.1046/j.1365-2362.2002.0320s1036.x Anderson, 1999, Non-transferrin-bound iron and cellular toxicity, J. Gastroenterol. Hepatol., 14, 105, 10.1046/j.1440-1746.1999.01828.x Gosriwatana, 1999, Quantification of non-transferrin-bound iron in the presence of unsaturated transferring, Anal. Biochem., 273, 212, 10.1006/abio.1999.4216 Loreal, 2000, Determination of non-transferrin-bound iron in genetic hemochromatosis using a new HPLC-based method, J. Hepatol., 32, 727, 10.1016/S0168-8278(00)80240-8 von Bonsdorff, 2002, Bleomycin-detectable iron assay for non-transferrin-bound iron in hematologic malignancies, Clin. Chem., 48, 307, 10.1093/clinchem/48.2.307 Breuer, 2000, The assessment of serum non-transferrin-bound iron in chelation therapy and iron supplementation, Blood, 95, 2975, 10.1182/blood.V95.9.2975.009k03_2975_2982 Breuer, 2001, A fluorescence-based one-step assay for serum non-transferrin-bound iron, Anal. Biochem., 299, 194, 10.1006/abio.2001.5378 Esposito, 2003, Labile plasma iron in iron overload: redox activity and susceptibility to chelation, Blood, 102, 2670, 10.1182/blood-2003-03-0807 Bland, 1999, Measuring agreement in method comparison studies, Stat. Methods Med. Res., 8, 135, 10.1191/096228099673819272 Hasinoff, 2003, The intracellular iron sensor calcein is catalytically oxidatively degraded by iron(II) in a hydrogen peroxide-dependent reaction, J. Inorg. Biochem., 95, 157, 10.1016/S0162-0134(03)00099-0 Sahlstedt, 2002, Effective binding of free iron by a single intravenous dose of human apotransferrin in haematological stem cell transplant patients, Br. J. Haematol., 119, 547, 10.1046/j.1365-2141.2002.03836.x Pootrakul, 2004, Labile plasma iron (LPI) as an indicator of chelatable plasma redox activity in iron overloaded beta-thalassaemia/HbE patients treated with an oral chelator, Blood, 104, 1504, 10.1182/blood-2004-02-0630