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 Sickle cell disease is an inherited blood disorder.It is marked by flawed hemoglobin. That's the protein in red blood cells that carries oxygen to the
tissues of the body. So, sickle cell disease interferes with the delivery of oxygen to the tissues. SCD is a genetic condition that is present at birth. It is
inherited when a child receives two genes-one from each parent that code for abnormal hemoglobin. Normal red blood cells can live up to 120
days.But,sickle cells only live for about 10 to 20 days.The sickled cells also damage the spleen.This puts you are at greater risk for infections.
There are several types of SCD.The specific type of SCD a person has depends on the genes they inherited from their parents.People with SCD
inherit genes that contain instructions,or code,for abnormal hemoglobin.
People who have this form of SCD inherit two genes, one from each parent,that code for hemoglobin"S."Hemoglobin S is an abnormal form of
hemoglobin that causes the red cells to become rigid,and sickle shaped.This is commonly called sickle cell anemia and is usually the most severe
form of the disease.
People who have this form of SCD inherit a hemoglobin "S" gene from one parent and a gene for a different type of abnormal hemoglobin
called"C"from the other parent.This is usually a milder form of SCD.
People who have sickle cell trait(SCT) inherit a hemoglobin"S"gene from one parent and a normal gene (one that codes for hemoglobin"A") from the
other parent.People with SCT usually do not have any of the signs of the disease.However,in rare cases, a person with SCT may develop health
problems. Additionally,people who have SCT can pass the abnormal hemoglobin "S" gene on to their children.
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