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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;
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] Normal hemoglobin consists of two alpha chains and two beta ...
Beta-thalassemia; Other names: Microcytemia, beta type: 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: Causes
Mechanism. Delta-beta thalassemia is autosomal recessive disorder, [1] which means both parents are affected and two copies of the gene must be present. [5] A carrier gets a normal gene to produce hemoglobin A, from one parent and the other parent supplies a gene which makes no hemoglobin A. [6] Delta-beta thalassemia is considered rare.
Thalassemia patients may also be faced with potential oxidative damage to brain cells as the brain has high oxygen demands, but contains relatively low levels of antioxidant agents for protection against oxidation. The presence of excess iron in the brain may lead to higher concentrations of free radicals.
Other names. Sickle cell-β thalassemia. Specialty. Hematology. Sickle cell-beta thalassemia is an inherited blood disorder. The disease may range in severity from being relatively benign and like sickle cell trait to being similar to sickle cell disease. [1] [2]
Mentzer index. Purpose. in differentiating iron deficiency anemia from beta thalassemia. The Mentzer index, described in 1973 by William C. Mentzer, [1] is the MCV divided by the RBC count. It is said to be helpful in differentiating iron deficiency anemia from beta thalassemia trait. [2] [3]
Specialty. Hematology. 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]
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