Blood test can determine the risk of Down syndrome in unborn babies

Developed a test in which blood test, women can decide whether the risk of a child born with Down syndrome, according to the BBC. Procedures that are currently in use, are quite aggressive and have a risk of harm to the fetus. Scientists at Stanford University have developed a test in which 18 women were able to accurately identify Down syndrome in the unborn child. The study was published in the journal PNAS. Babies with Down syndrome have an extra copy of chromosome 21, which leads to problems in the physical and mental development. The new test will be much safer with the previous one, the scientists said. A safer method helps to avoid injury to the fetus and to make an accurate diagnosis, with the wrong number of chromosomes, which is an important contribution to the diagnosis of diseases such as Down's syndrome associated to make, the scientists said.