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Cooley’s Anemia Foundation (CAF) is an American 501(c)(3) nonprofit organization that funds medical research and education to benefit individuals living with the genetic blood disorder thalassemia. The major form of this disorder is also known as Cooley's anemia.
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 ]
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;
Thalassemia subtypes of clinical significance are alpha thalassemia and beta thalassemia. A third subtype, delta thalassemia, affects production of HBA2 and is generally asymptomatic. [26] The severity of alpha thalassemia depends on how many of the four genes that code for alpha globin are faulty.
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.
It is also cheap and easy, making regular screening for alpha-thalassemia a plausible possibility. [ 9 ] [ 10 ] Anemia is a factor in fetuses with Hemoglobin Bart's disease as there is an "increased cardiac output" and hypovolemia as the tissues of the fetus require oxygen because of the gamma globulin's high affinity for oxygen.
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]
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 ...