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Hemoglobin
international journal for hemoglobin research
Volume 32, 2008 - Issue 5
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Original Article

Hb Lepore-Leiden: A New δ/β Rearrangement Associated with a β-Thalassemia Minor Phenotype

, , , , &
Pages 446-453 | Received 14 Sep 2007, Accepted 15 Jan 2008, Published online: 07 Jul 2009
 

Abstract

The Lepore hemoglobins (Hbs) are a group of structural defects resulting from different recombination events between the δ- and β-globin genes. They may come with different β-thalassemia (β-thal) minor-like phenotypes in the carrier and with variably severe phenotypes in the rare homozygote, and in the common compound heterozygote with β-thal. The most seriously affected patients are those of Yugoslavian origin presenting with severe transfusion-dependent hemolytic anemia, dyserythropoiesis, hepatosplenomegaly and skeletal malformations. Because of genetic risk, couples where both partners are carriers of these combinations may require prognosis and prenatal diagnosis. In these cases, recognition of the defect must be done with particular care. We report a case of Hb Lepore induced by a yet unknown crossover event found in a 24-year-old Turkish male and compare the novel mutation with those previously reported.

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