Hemoglobin is made of two proteins: Alpha globin and beta globin. Thalassemia occurs when there is a defect in a gene that helps control production of one of these proteins.
There are two main types of thalassemia:
Alpha thalassemia occurs when a gene or genes related to the alpha globin protein are missing or changed (mutated). Alpha thalassemias occur most commonly in persons from southeast Asia, the Middle East, China, and in those of African descent.
Beta thalassemia occurs when similar gene defects affect production of the beta globin protein. Beta thalassemias occur in persons of Mediterranean origin, and to a lesser extent, Chinese, other Asians, and African Americans.
There are many forms of thalassemia. Each type has many different subtypes. Both alpha and beta thalassemia include the following two forms:
Thalassemia major Beta thalassemia major is also called Cooley's anemia. Thalassemia minor: You must inherit the defective gene from both parents to develop thalassemia major. Thalassemia minor occurs if you receive the defective gene from only one parent. Persons with this form of the disorder are carriers of the disease and usually do not have symptoms.
What causes Thalassemia?
Hemoglobin is made of two proteins: Alpha globin and beta {{NAME}}. Thalassemia occurs when there is a defect in a gene that helps control production of one of these proteins.
There are two main types of thalassemia:
Alpha thalassemia occurs when a gene or genes related to the alpha globin protein are missing or changed (mutated). Alpha thalassemias occur most commonly in persons from southeast Asia, the Middle East, China, and in those of African descent.
Beta thalassemia occurs when similar gene defects affect production of the beta {{NAME}}. Beta thalassemias occur in persons of Mediterranean origin, and to a lesser extent, Chinese, other Asians, and African Americans.
There are many forms of thalassemia. Each type has many different subtypes. Both alpha and beta thalassemia include the following two forms:
Thalassemia major Beta thalassemia major is also called {{NAME}}'s anemia. Thalassemia minor: You must inherit the defective gene from both parents to develop thalassemia major. Thalassemia minor occurs if you receive the defective gene from only one parent. Persons with this form of the disorder are carriers of the disease and usually do not have symptoms.