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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 is has greatest prevalence in populations originating from Southeast Asia, Mediterranean countries, Africa, the Middle East, India, and Central Asia. [8] Having a mild form of alpha thalassemia has been demonstrated to protect against malaria and thus can be an advantage in malaria endemic areas. [13]
The prevalence of Hemoglobin H disease mirrors that of the hemoglobinopathies. As a whole, they are most prevalent in individuals of Asian, African, and Mediterranean decent. [ 5 ] There is a protective effect against malaria for individuals carrying thalassemia genes, which explains the high frequency of thalassemia within the worldwide ...
Thalassemia prevalence in India is 3-4%, with 10,000 to 12,000 reported thalassemia births taking place every year. It is also estimated that there are 30 million thalassemia carriers in the country. With NAT tested blood, these patients live longer and maintain their quality of life.
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
This list concerns blood type distribution between countries and regions.Blood type (also called a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs).
It is so named because of its higher prevalence in the Punjab region of India and Pakistan, along with northern China, and North America. It is also the most frequent hemoglobin variant in Xinjiang Uyghur Autonomous Region of China , with a 1997 study indicating that Hemoglobin D-Punjab accounts for 55.6% of the total hemoglobin variants.
Therefore, most transfusion-dependent thalassemia patients can be diagnosed within the first few years of life, which severe anemia, differed growth, jaundice and hepatosplenomegaly can be observed. Parameters for confirmation includes baseline hemoglobin level <7g/dL, enlargement of liver and spleen (>5 cm) and height in the first 10th percentile.