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  2. Sickle cell disease - Wikipedia

    en.wikipedia.org/wiki/Sickle_cell_disease

    Sickle cell disease (SCD), also simply called sickle cell, is a group of hemoglobin-related blood disorders typically inherited. [2] The most common type is known as sickle cell anemia. [2] It results in an abnormality in the oxygen-carrying protein haemoglobin found in red blood cells. [2] This leads to a rigid, sickle -like shape under ...

  3. Sickle cell trait - Wikipedia

    en.wikipedia.org/wiki/Sickle_cell_trait

    Hematology. Sickle cell trait describes a condition in which a person has one abnormal allele of the hemoglobin beta gene (is heterozygous), but does not display the severe symptoms of sickle cell disease that occur in a person who has two copies of that allele (is homozygous). Those who are heterozygous for the sickle cell allele produce both ...

  4. Anemia - Wikipedia

    en.wikipedia.org/wiki/Anemia

    There may be signs of specific causes of anemia, e.g. koilonychia (in iron deficiency), jaundice (when anemia results from abnormal break down of red blood cells – in hemolytic anemia), nerve cell damage (vitamin B 12 deficiency), bone deformities (found in thalassemia major) or leg ulcers (seen in sickle-cell disease). In severe anemia ...

  5. Sickle Cell Anemia, a Molecular Disease - Wikipedia

    en.wikipedia.org/wiki/Sickle_Cell_Anemia,_a...

    The molecular disease concept put forward in the 1949 paper also became the basis for Linus Pauling's view of evolution. In the 1960s, by which time it had been shown that sickle cell trait confers resistance to malaria and so the gene had both positive and negative effects and demonstrated heterozygote advantage, Pauling suggested that ...

  6. Sickle cell-beta thalassemia - Wikipedia

    en.wikipedia.org/wiki/Sickle_cell-beta_thalassemia

    Sickle cell beta thalassemia. 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]

  7. Hemolytic anemia - Wikipedia

    en.wikipedia.org/wiki/Hemolytic_anemia

    Hemolytic anemia or haemolytic anaemia is a form of anemia due to hemolysis, the abnormal breakdown of red blood cells (RBCs), either in the blood vessels (intravascular hemolysis) or elsewhere in the human body (extravascular). [2] This most commonly occurs within the spleen, but also can occur in the reticuloendothelial system or mechanically ...

  8. Aplastic anemia - Wikipedia

    en.wikipedia.org/wiki/Aplastic_anemia

    Aplastic anemia causes a deficiency of all blood cell types: red blood cells, white blood cells, and platelets. [5][6] It occurs most frequently in people in their teens and twenties but is also common among the elderly. It can be caused by heredity, immune disease, or exposure to chemicals, drugs, or radiation.

  9. Autoimmune hemolytic anemia - Wikipedia

    en.wikipedia.org/wiki/Autoimmune_hemolytic_anemia

    Autoimmune hemolytic anemia (AIHA) is an autoimmune disorder which occurs when antibodies directed against the person's own red blood cells (RBCs) cause them to burst (lyse), leading to an insufficient number of oxygen-carrying red blood cells in circulation (anemia). The lifetime of the RBCs is reduced from the normal 100–120 days to just a ...

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