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β thalassemia major (Mediterranean anemia or Cooley anemia) is caused by a β o /β o genotype. No functional β chains are produced, and thus no hemoglobin A can be assembled. This is the most severe form of β-thalassemia; β thalassemia intermedia is caused by a β + /β o or β + /β + genotype. In this form, some hemoglobin A is produced;
Treatment. Blood transfusion, possible splenectomy [ 1][ 4] Alpha-thalassemia ( α-thalassemia, α-thalassaemia) is a form of thalassemia involving the genes HBA1 [ 5] and HBA2. [ 6] Thalassemias are a group of inherited blood conditions which result in the impaired production of hemoglobin, the molecule that carries oxygen in the blood. [ 7]
Beta-thalassemia; Other names: Microcytemia, beta type [1] Beta thalassemia genetics, the picture shows one example of how beta thalassemia is inherited. The beta globin gene is located on chromosome 11. A child inherits two beta globin genes (one from each parent). Specialty: Hematology: Types: Thalassemia minor, intermediate and major [2] Causes
Other names. Alpha-thalassemia intermedia. Specialty. Hematology. Hemoglobin H disease, also called alpha-thalassemia intermedia, is a disease affecting hemoglobin, the oxygen carrying molecule within red blood cells. It is a form of Alpha-thalassemia which most commonly occurs due to deletion of 3 out of 4 of the α-globin genes.
The brown areas contain hemosiderin. Specialty. Hematology. Hemosiderosis is a form of iron overload disorder resulting in the accumulation of hemosiderin . Types include: Transfusion hemosiderosis [ 1] Idiopathic pulmonary hemosiderosis. Transfusional diabetes [ 2][ 3] Organs affected:
Hemoglobinopathy is the medical term for a group of inherited blood disorders involving the hemoglobin, the protein of red blood cells. [ 1] They are single-gene disorders and, in most cases, they are inherited as autosomal co-dominant traits. [ 2]
Hemoglobin E ( HbE) is an abnormal hemoglobin with a single point mutation in the β chain. At position 26 there is a change in the amino acid, from glutamic acid to lysine (E26K). Hemoglobin E is very common among people of Southeast Asian, Northeast Indian, Sri Lankan and Bangladeshi descent. [ 1][ 2]
Hemoglobin A2. Hemoglobin A2 ( HbA2) is a normal variant of hemoglobin A that consists of two alpha and two delta chains (α 2 δ 2) and is found at low levels in normal human blood. Hemoglobin A2 may be increased in beta thalassemia or in people who are heterozygous for the beta thalassemia gene.