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The beta form of thalassemia is particularly prevalent among the Mediterranean peoples and this geographical association is responsible for its naming: thalassa (θάλασσα) is the Greek word for sea and haima (αἷμα) is the Greek word for blood.
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.
Hemoglobin E/ beta thalassemia: common in Cambodia, Thailand, and parts of India, it is clinically similar to β thalassemia major or β thalassemia intermedia. [34] Hemoglobin S/ beta thalassemia: common in African and Mediterranean populations, it is clinically similar to sickle-cell anemia. [35] Delta-beta thalassemia is a rare form of ...
The cause for the disorder is related to a genetic mutation of the HBB gene. This gene is responsible for providing the instructions to produce beta-globin; one of the major components of hemoglobin. The two classification types of beta thalassemia are thalassemia major (also known as Cooley's anemia) and thalassemia intermedia. [30] Diamond ...
There are two approved forms of gene therapy for beta thalassemia. [96] [97] Betibeglogene autotemcel, sold under the brand name Zynteglo, is a gene therapy for the treatment for beta thalassemia which adds a healthy beta-globin gene to the HSCs. [98] It was approved for medical use in the United States in August 2022.
Normal levels range from 2.1-3.2%, but in the beta-thalassemia disorder, the levels increase to 3.5-6.0%. Additionally, individuals with beta-thalassemia exhibit a high red cell count and low hemoglobin levels. [3] Individuals that express lower levels of hemoglobin A2, have the a 0-thalassemia trait or homozygous gene for a +-thalassemia. [2]
Anisopoikilocytosis is a medical condition illustrated by a variance in size (anisocytosis) and shape (poikilocytosis) of a red blood cell.The underlying cause can be attributed to various anemias, most often; beta thalassemia major, a form of microcytic anemia. [1]
Beta-thalassemia is a genetic disease mostly caused by beta-globin gene mutations. [18] Clinical diagnosis is based on interpretation of the peripheral blood smear , which examines red blood cell morphology, followed by hemoglobin analysis and confirmed by DNA sequencing .
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