Thalassaemia is an inherited disease that is caused when there are mutations or a missing gene that affects how haemoglobin is produced. Haemoglobin is the protein in red blood cells that carries oxygen around the body.

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Thalassaemia

Thalassaemia is an inherited disease that is caused when there are mutations or a missing gene that affects how haemoglobin is produced. Haemoglobin is the protein in red blood cells that carries oxygen around the body.

If you have thalassaemia, it means you don’t have enough red blood cells, and therefore do not produce enough haemoglobin; this could result in either mild or severe anaemia.  

Haemoglobin is made up of four polypeptide chains, two alpha globin and two beta globin. If you have alpha thalassaemia, this means that you have a mutation with your alpha chains: you can either have minor (a) or major (b)

Alpha

To make enough alpha globin protein chains, you inherit two genes (one from each parent). Alpha Thalassaemia occurs when one or more of these genes are missing or have been mutated, the severity of the disease depends on how many of the genes are missing/mutated.

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  • if one gene is affected you are likely to have no or little symptoms and are known as a silent carrier
  • If two genes are affected this means that you will have alpha thalassaemia trait and are therefore known as a carrier. you will also experience mild anaemia
  • If you have three genes affected, you will have moderate to severe anaemia, also known as haemoglobin H disease. This results in chronic anaemia.
  • if all your genes are mutated you will have alpha thalasaemia major, this means you produce abnormal haemoglobin and are at high risk of dying ...

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This is a good overview of the condition but a lack of precise (and occasionally accurate) scientific detail lets it down. 3 Stars