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What Type Of Mutation Causes Sickle Cell Anemia
Important gene...: Sickle cell anemia is caused by a mutation in the gene that tells your body to make hemoglobin. Hemoglobin allows red blood cells to carry oxygen from your lungs to all parts of your body. In sickle cell anemia, the abnormal hemoglobin causes red blood cells to become rigid, sticky and misshapen. These abnormal red blood cells lead to the various symptoms of the disease. ...Read more
In genetics, a mutation is a change in the nucleotide sequence of the genome of an organism, virus, or extrachromosomal genetic element. Mutations result from unrepaired damage to dna or to RNA genomes (typically caused by radiation or chemical mutagens), from errors in the process of replication, or from the insertion or deletion of segments of dna ...Read more
Malaria doesnt cause: Sickle cell anemia is a hereditary disease caused by a mutation in the dna coding for hemoglobin. Scientists have long known that sickle cell anemia protects carriers from malaria infections, which could be advantageous in certain parts of the world. Malaria does not cause sickle cell anemia. ...Read moreSee 1 more doctor answer
Symptoms of SS: The altered shape of the red blood cells causes them to stack up together and clog blood vessels, depriving the tissues of adequate blood supply and oxygen. The tissues then die (infarct) and this causes pain. The red cells also rupture or are eaten by the spleen and cause anemia. The spleen itself will gradually infarct, leaving the patient susceptible to infections. ...Read more
You may be confused.: Fetuses do not suffer from sickle cell anemia in utero because they have a different type of hemoglobin (fetal) that is unaffected even in individuals destined to have sickle cell disease later in life. Affected fetuses come from affected or carrier parents and sickle cell disease is a genetic condition without cure at present. See a genetic counselor to discuss these issues in detail. ...Read more
Increased sickling: Multiple factors can result in increased sickling during anesthesia and surgery. Chemical changes in the acidity of the blood, oxygen carrying capacity of the blood, body temperature, etc all increase the risk of sickling. Therefore transfusions are strongly recommended prior to surgery to reduce the total number of red cells with hemoglobin s prior to surgery in an attempt to minimize the risk. ...Read moreSee 2 more doctor answers
Compromising organs: Sickling of the red blood cells can occur from stress or ketoacidosis (diabetes out of control) and causes of low oxygen in the lungs or blood. This will cause the sickled cells to obstruct the flow of the cells that still are able to carry oxygen to the various organs such as the liver, the brain, heart, muscles and any and all tissue. This compromises function of the organ or tissue. ...Read more
Types os SIckle Cell: From nih, division of blood diseases and resources: sickle cell disease-ss: 65% of us patients; genotype s/s sickle cell disease-sc: 25% of us patients; genotype s/c sickle cell disease-s beta + thalassemia: 8% of us patients; genotype betas/ beta + thalassemia sickle cell disease-s beta 0 thalassemia: 2% of us patients; genotype betas/ beta 0 thalassemia. ...Read moreSee 1 more doctor answer
This is a genetic disorder in which hemoglobin is abnormally made., more common in people of african descent. This abnormality causes red blood cells to become stiff and fall apart. This can cause very specific symptoms: pain, pneumonias, strokes, spleen problems, and many other problems. Some have mild disease, some ...Read more
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