Thalassemia
A Hemoglobinopathy
Disorder
What is it?
Thalassemia is an inherited blood disorder that is caused by a malfunction of red blood cells in their ability to properly carry oxygen to the body.
Inheritance and Frequency
The gene defect for Thalassemia is an autosomal recessive genetic trait and is unknowingly passed down from generation to generation. This faulty gene usually emerges when two carriers have children together and pass it to their offspring. For each pregnancy of two such carriers, there is a 25% chance that the child will be born with the disease and a 50% chance the child will be a carrier for the gene defect.
Studies conducted since 1979 show that 1 of every 250,000 births will have Thalassemia.
Signs & Symptoms
Most children with Thalassemia appear healthy at birth, but may become pale, feed poorly, and gradually develop jaundice within the first few years of life.
Long Term Effects
If not treated, Thalassemia will cause severe anemia, failure to grow properly, and death.
Treatment
Thalassemia is treated with medication and blood transfusions.
History
Screening
Visit the What Does Your State Screen page to learn about your state's newborn screening program.
Supplemental Screening
If you live in a state that does not perform screening on its newborns for all detectable disorders, there are laboratories that will provide this screening for you no matter the state of your residence. For more information about supplemental screening, visit our supplemental screening page. Also visit our frequently asked questions page for more information on newborn screening.
Other Sites of Reference
- Thalassemia - Cooley's Anemia Foundation
- Thalassemia - GeneReviews
- Thalassemia - Genetics Home Reference
- Thalassemia - OMIM
- Ethnicity and Screening for Sickle Cell/Thalassaemia book by Simon Dyson (May, 2005)
Support Groups
Sickle Cell & Thalassemia Support Group of London
East London
MUMS - National Parent-to-Parent Network
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