Sickel cell anemia is a blood disorder caused by an abnormality in haemoglobin molecule in red blood cells.Person inherited by Sickle-cell disease has two abnormal copies of haemoglobin gene.Normal red blood cells are round and flexible whereas sickled red blood cells appear in sickle-shape.Abnormal haemoglobin forms strands that change red blood cells to that form and hence they accumulate at the branches of the veins and blocks the flow of blood.As haemoglobin is responsible for carrying of oxygen throught out the body,there may be chronic attacks due to lack of oxygen supply.
Mutations in HBB gene results in Sickle Cell disease. Haemoglobin consists of four subunits.Two subunits are Alpha-globin and other two are Beta-globin. HBB gene is responsible for making instructions in the production of Beta-globin. Hence mutations in HBB gene results in different abnormal versions of beta-globin.These abnormal versions may distort red blood cells into sickle shape.
Related Journals of Sickel Cell Anemia
Genetic Medicine, Genetic Engineering, Blood, American Journal of Epidemiology, American Society of Hematology, Journal of Clinical Pathology, Human Molecular Genetics, New England Journal of Medicine Science, Sickel cell anemia Journals