[Beta thalassemia: molecular pathogenesis and clinical variability].

Abstract excerpt

Clinically, homozygous beta-thalassaemia is characterised by a severe anaemia requiring regular transfusion therapy in most patients. However, there is a marked clinical variability ranging from this severe picture to the virtual absence of symptoms and haematological abnormalities. Biochemically, beta-globin synthesis in the erythroid precursors of the bone marrow is reduced or absent resulting in a relative...

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