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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 that are typically inherited. [2] The most common type is known as sickle cell anemia. [2] Sickle cell anemia results in an abnormality in the oxygen-carrying protein haemoglobin found in red blood cells. [2]

  3. Heterozygote advantage - Wikipedia

    en.wikipedia.org/wiki/Heterozygote_advantage

    Sickle-cell anemia (SCA) is a genetic disorder caused by the presence of two incompletely recessive alleles. When a sufferer's red blood cells are exposed to low-oxygen conditions, the cells lose their healthy round shape and become sickle-shaped. This deformation of the cells can cause them to become lodged in capillaries, depriving other ...

  4. Pleiotropy - Wikipedia

    en.wikipedia.org/wiki/Pleiotropy

    Sickle cell anemia is a classic example of the mixed benefit given by the staying power of pleiotropic genes, as the mutation to Hb-S provides the fitness benefit of malaria resistance to heterozygotes as sickle cell trait, while homozygotes have significantly lowered life expectancy—what is known as "heterozygote advantage". Since both of ...

  5. Watch: Why does sickle cell affect Black people at a ... - AOL

    www.aol.com/news/watch-why-does-sickle-cell...

    Tevin and Akilah Coleman and Dr. Kim Smith-Whitley are helping to bring awareness to sickle cell anemia, which affects Black […] The post Watch: Why does sickle cell affect Black people at a ...

  6. Sickle cell trait - Wikipedia

    en.wikipedia.org/wiki/Sickle_cell_trait

    Sickle cell anemia affects about 72,000 people in the United States. Most Americans who have sickle cell anemia are of African descent. The disease also affects Americans from the Caribbean , Central America , and parts of South America , Turkey , Greece , Italy , the Middle East and East India.

  7. Coronavirus can transform pancreas cell function; certain ...

    www.aol.com/coronavirus-transform-pancreas-cell...

    When the coronavirus infects cells, it not only impairs their activity but can also change their function, new findings suggest. For example, when insulin-producing beta cells in the pancreas ...

  8. Hemoglobin C - Wikipedia

    en.wikipedia.org/wiki/Hemoglobin_C

    It is possible for a person to have both the gene for hemoglobin S (the form associated with sickle cell anemia) and the gene for hemoglobin C; this state is called hemoglobin SC disease, and is generally more severe than hemoglobin C disease, but milder than sickle cell anemia. [2]

  9. Immunodeficiency - Wikipedia

    en.wikipedia.org/wiki/Immunodeficiency

    Humoral immune deficiency (including B cell deficiency or dysfunction), with signs or symptoms depending on the cause, but generally include signs of hypogammaglobulinemia (decrease of one or more types of antibodies) with presentations including repeated mild respiratory infections, and/or agammaglobulinemia (lack of all or most antibody production) which results in frequent severe infections ...