This new finding has been tested through a clinical trial in 120 pregnant women, under the coordination Dr Sebastián Manzanares from the Foetal Medicine Unit of the Virgen de las Nieves University Hospital Granada. The method’s effectiveness rate is above 98 percent. Although the test can be carried out from the sixth week of pregnancy, the reliability of the technique is much higher from the eighth.
The technique is based on the fact that, during pregnancy, between 3.4 and 6.2 percent of the total DNA free in mother plasma has a foetal origin. Therefore, a simple peripheral blood sample is enough for the study, which opens new possibilities in the field of non-invasive prenatal diagnosis. With all these privacy guarantees, the mother can carry out the extraction directly through a simple method, send it to Lorgen and receive the results 48 hours later.
This new process, apart from saving the parents the wait until the forth or fifth month of pregnancy to find out the sex of their future baby, involves a great scientific progress with important medical applications; especially in the diagnosis of monogenic diseases related to X chromosome, such as haemophilia or Duchenne muscular dystrophy.
In these cases, the possibility of determining the sex of the baby as soon as possible, would avoid the processes of invasive prenatal diagnosis such as amniocentesis, chorionic villus biopsy or cordcentesis, which involve a danger for the life of the foetus.
MEDICA.de; Source: University of Granada