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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).
Sickle cell disease (SCD), also simply called sickle cell, is a group of hemoglobin-related blood disorders typically inherited. The most common type is known as sickle cell anemia. It results in an abnormality in the oxygen-carrying protein haemoglobin found in red blood cells.
Sickle Cell Anemia, a Molecular Disease" is a 1949 scientific paper by Linus Pauling, Harvey A. Itano, Seymour J. Singer and Ibert C. Wells that established sickle-cell anemia as a genetic disease in which affected individuals have a different form of the metalloprotein hemoglobin in their blood.
Hereditary persistence of fetal hemoglobin (HPFH) is a benign condition in which increased fetal hemoglobin (hemoglobin F, HbF) production continues well into adulthood, disregarding the normal shutoff point after which only adult-type hemoglobin should be produced.
Schematic of alkaline hemoglobin electrophoresis, showing expected results for a normal adult, normal newborn, person with sickle cell disease, person with sickle cell trait, person with hemoglobin SC disease, and control sample. Hemoglobin electrophoresis is a blood test that can detect different types of hemoglobin.
Sickle cell disease is a group of inherited disorders in which red blood cells — normally round — become hard, sticky and crescent shaped. ... because carrying the sickle cell trait helps ...
Some symptoms of sickle cell anemia include fever, fatigue from anemia, swelling of the hands and feet, stroke, and organ failure. Current treatments include blood transfusions which aid with increasing the number of normal red blood cells, bone marrow transplants to help the patients body produce healthy red blood cells, and medications to ...
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.
HbA2 exists in small amounts in all adult humans (1.5–3.1% of all hemoglobin molecules) and is approximately normal in people with sickle-cell disease. Its biological importance is not yet known. HbA2 may seem physiologically minor, but it plays a very crucial role in identifying the beta-thalassemia traits, also known as BTT, and identifying ...
Sickle-cell disease: 53 Sanfilippo syndrome [citation needed] Tay–Sachs disease: 53 Wet (dominant) or dry (recessive) earwax; Non-Mendelian traits. Most traits (including all complex traits) are non-mendelian. Some traits commonly thought of as Mendelian are not, including: Eye Color; Psychiatric diseases; Hair color; Height
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