الاثنين، 30 يوليو 2012

Thalassemia (anemia Mediterranean)

Nchr Thalassemia in all parts of the world, but by more in some countries, such as the countries of the Mediterranean basin. This is also called (anemia Mediterranean), a disease known since ancient times in this region, have been identified this evil at the hands of the doctor Cooley in 1925, when he was diagnosed cases of patients suffering from severe anemia, and a symptom of bone deformities and death patient at the end.
Thalassemia genetic disease affecting the manufacture of blood, so the hemoglobin in red blood cells is unable to do its job, causing anemia, a hereditary and chronic disease of children in the stages of age early, as a result of receiving Morthan Matlin, one from the father and the other from the mother. Thalassemia is divided into the most important types, alpha thalassemia and beta thalassemia, depending on the defect site, ifIn the gene responsible for the manufacture of the protein alpha-chain in hemoglobin "Alhmocalobin" or beta, respectively. It is known that there are several hundreds of genetic mutations causing the disease. And the confluence of Morthyn Almatlin type of beta leads to the emergence of the disease, while, to the presence of four genes responsible for manufacturing a series of alpha, the need to be ill in the presence of three of these genes, or genes ill all four of the onset of symptoms. There are also other types of thalassemia such as delta type.
Thalassemia is transmitted genetically from parents to children. If a parent carrier of the disease or infected with it, it is possible to move to some children Besorth simple (ie, they become carriers of a disease). If that happened to both parents carrying the disease or patients with cancer, there is a possibility of 25% to be born a child with severe disease Besorth.
As a result of this is divided into two people with:

    
Type in which a person is a carrier of the disease did not show any symptoms, or may show symptoms of anemia are simple, and be able to transmit the disease to his sons.

    
And the type in which a person infected with the disease, and showing obvious symptoms of the disease since childhood.

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