A new test to extract fetal DNA from maternal blood

A team of scientists from developing a blood test is performed on the mother to get the DNA of the fetus in the case of growth.The significance of the test conducted by the research team at University Women's Hospital in Basel, Switzerland, and published in the February issue of the current American Medical Association (JAMA) in the discovery of the gene responsible for beta - thalassemia, a disease thalassemia killer.Although there are a number known from tests performed on the mother's blood to detect diseases and certain hereditary in fetuses before birth, the ability of these tests to detect the limited until now to recognize the changes in the chromosomes of the fetus, as in Down syndrome (mental retardation).The researchers believe that new technology can be used in the detection of a wide range of diseases, and leads to prevent corruption or loss of a baby by 1% of cases.The old technology in a sample of amniotic fluid surrounding the fetus in the womb by a long shot, to prove the existence of individual mutations in the genes of the fetus, causing illness and Beta - Thalassemia.Found the research team led by Dr Sinuhe Hahn that parts of the DNA (DNA) of the fetus can be separated from the genetic material of the mother in her blood. This has allowed them to identify the individual mutations of the DNA of the fetus, and underwater DNA of the mother.The researchers were able to reach the new technique through the withdrawal of blood samples from 32 women before pregnancy to 12 weeks.The medical history of the families in the study indicates the possibility of their baby's disease Beta - Thalassemia, a hereditary disease that disrupts the killer red blood cells for the production of hemoglobin molecules needed to carry oxygen.The researchers were able to separate the DNA of the mother of the DNA of the fetus by using the electric displacement electrophoresis, where the particles would be dragged through a long strip of material generation electric volts.The researchers found that small parts of DNA - almost entirely - was the source of the fetus, which has enabled researchers to identify the presence of Ougiyab the genetic mutation of the disease beta - thalassemia and the success rate of 93.8%.The gene responsible for the Beta - Thalassemia is a recessive gene, as can a parent that a modified version of the gene without the disease. If the fetus had two copies of mutated by both parents, Fissenco this disease in the child at the end.It is known that there are more than 200 modification (mutation) of this gene, leads the meeting of any two of them in a child to illness Beta - Thalassemia