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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.
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. [1]
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
Alpha-thalassemia: D56.0: 448, 33334, 33678: Alpha-thalassemia (α-thalassemia) is a form of thalassemia involving the genes HBA1 [20] and HBA2. [21] It is condition that causes a reduction of hemoglobin production. There are two types of Alpha-thalassemia, named hemoglobin Bart hydrops fetalis syndrome (also known as Hb Bart syndrome) and HbH ...
Alpha-thalassemia (α-thalassemia, α-thalassaemia) is an inherited blood disorder and a form of thalassemia. Thalassemias are a group of inherited blood conditions which result in the impaired production of hemoglobin , the molecule that carries oxygen in the blood. [ 4 ]
Beta-thalassemia has beta globin chains that are reduced and alpha-thalassemia has alpha globin chains that are also reduced. [5] This disorder is the most common autosomal recessive disorder in some countries. [6] Hemoglobin A2 is employed to diagnose thalassemia disorders, encompassing both beta and alpha types.
Thalassemia is an inherited condition that has variants in alpha or beta globin genes that result in lower levels of globin chains required to make hemoglobin, resulting in alpha thalassemia or beta thalassemia, respectively. [3] Diagnosis is made by DNA analysis for alpha thalassemia and hemoglobin analysis for beta thalassemia. [3]
Alpha-thalassemia (α-thalassemia) is defined by a lack of α-globin chain production in hemoglobin, and those who carry a mutation impacting the α-globin chain on only one chromosome are considered to have a “silent” α-thalassemia whereas, if the mutation is on both then it is considered an α-thalassemia trait.