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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 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).
Individuals with sickle cell–hemoglobin C (HbSC), have inherited the gene for sickle cell disease (HbS) from one parent and the gene for hemoglobin C disease (HbC) from the other parent. Since HbC does not polymerize as readily as HbS, there is less sickling in most cases.
The FDA approves the first of two gene therapies this month to treat sickle cell disease. Though expensive and difficult, it promises a better life.
LONDON (AP) — Britain’s medicines regulator has authorized the world’s first gene therapy treatment for sickle cell disease, in a move that could offer relief to thousands of people with the...
Sickle cell disease (SCD) is a painful, inherited blood disorder in which the body makes flawed, sickle-shaped hemoglobin, impairing the ability of red blood cells to properly carry oxygen...
Sickle cell – The gene for HbS associated with sickle-cell is today distributed widely throughout sub-Saharan Africa, the Middle East, and parts of the Indian subcontinent, where carrier frequencies range from 5–40% or more of the population.
The only cure for painful sickle cell disease today is a bone marrow transplant. But soon there may be a new cure that attacks the disorder at its genetic source.
A well-established case of heterozygote advantage is that of the gene involved in sickle cell anaemia. Often, the advantages and disadvantages conveyed are rather complicated, because more than one gene may influence a given trait or morph.
His final results reported in 1954 from nearly 5,000 East Africans indicated the overall picture: sickle-cell trait confers resistance to malaria. When Allison introduced the genetic theory of malaria resistance, it was largely received with scepticism.