Search results
Results from the WOW.Com Content Network
The mutation which causes sickle cell disease results in an abnormal hemoglobin known as hemoglobin S (HbS), which replaces HbA in adults. [20] The human genome contains a pair of genes for β-globin; in people with sickle cell disease, both genes are affected and the erythropoietic cells in the bone marrow will only create HbS.
Sickle cell disease is a blood disorder wherein there is a single amino acid substitution in the hemoglobin protein of the red blood cells, which causes these cells to assume a sickle shape, especially when under low oxygen tension.
Autosomal dominant A 50/50 chance of inheritance. Sickle-cell disease is inherited in the autosomal recessive pattern. When both parents have sickle-cell trait (carrier), a child has a 25% chance of sickle-cell disease (red icon), 25% do not carry any sickle-cell alleles (blue icon), and 50% have the heterozygous (carrier) condition. [1]
NEW HAVEN, Conn. (WTNH) — Sickle cell disease is an inherited blood disorder impacting 100,000 people in the U.S., disproportionately people of color. Dr. Lila Van Doren, assistant professor of ...
Sufferers' red blood cells have an abnormal "sickle" shape that can block their flow through blood vessels, causing excruciating pain and sometimes leading to strokes, organ damage and premature ...
Photomicrograph of normal-shaped and sickle-shape red blood cells from a patient with sickle cell disease. Sickle cell anemia is a genetic disease that causes deformed red blood cells with a rigid, crescent shape instead of the normal flexible, round shape. [29] It is caused by a change in one nucleotide, a point mutation [30] in the HBB gene.
Conditions that cause rouleaux formation include infections, multiple myeloma, Waldenström's macroglobulinemia, inflammatory and connective tissue disorders, and cancers. It also occurs in diabetes mellitus and is one of the causative factors for microvascular occlusion in diabetic retinopathy.
The disease gets its name from its effect on red blood cells, which become distorted from their normal round shape into pointed, sickle-shaped cells due to a mutation affecting hemoglobin A, the main form of hemoglobin in adults. When cells sickle they can cause recurrent episodes of acute pain that often require hospitalization, transfusions ...