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Hereditary hypotransferrinemia can lead to elevated transferrin saturation and, when associated to HFE or HAMP mutations, to iron overload

Abstract : As our understanding of iron metabolism improves through the more accurate description of iron metabolism actors, new causes of iron overload are identified. We, here, report 16 cases of hereditary hypotransferrinemia related to 4 previously undescribed TF (transferrin) mutations (p.Val221Gly, p.Arg609Trp, p.Glu370Lys, p.Tyr533X and p.Cys421Arg). We show that, besides increasing serum transferrin saturation without iron overload, hypotransferrinemia, when associated to mutations in HFE or HAMP or to acquired factors, can lead to clinically relevant iron burden. These cases emphasize the usefulness of serum transferrin determination in the diagnostic evaluation of iron overload and the importance for clinicians to be aware of this syndrome.
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Submitted on : Wednesday, February 25, 2015 - 4:22:16 PM
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Marie-Pascale Beaumont-Epinette, Jean-Bernard Delobel, Martine Ropert, Yves Deugnier, Olivier Loréal, et al.. Hereditary hypotransferrinemia can lead to elevated transferrin saturation and, when associated to HFE or HAMP mutations, to iron overload. Blood Cells, Molecules and Diseases, Elsevier, 2015, 54 (2), pp.151-154. ⟨10.1016/j.bcmd.2014.11.020⟩. ⟨hal-01120455⟩

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