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Beta thalassemia (β-thalassemia) syndromes are a heterogeneous group of inherited hemoglobinopathies caused by molecular defects in the beta-globin gene that lead to the impaired synthesis of beta-globin chains of the hemoglobin. The hallmarks of the disease include ineffective erythropoiesis, chronic hemolytic anemia, and iron overload. Clinical presentation ranges from asymptomatic carriers to severe anemia requiring lifelong blood transfusions with subsequent devastating complications. The management of patients with severe β-thalassemia represents a global health problem, particularly in low-income countries. Until recently, management strategies were limited to regular transfusions and iron chelation therapy, with allogeneic hematopoietic stem cell transplantation available only for a subset of patients. Better understanding of the underlying pathophysiological mechanisms of β-thalassemia syndromes and associated clinical phenotypes has paved the way for novel therapeutic options, including pharmacologic enhancers of effective erythropoiesis and gene therapy.
Đordević et al. (Wed,) studied this question.