检测母亲血液中ffDNA可以诊断胎儿患遗传性疾病的危险

 
一种非创伤性血液检测方法被研制开发用于确定胎儿是否面临出现遗传疾病的危险。

对出生前遗传疾病的诊断，目前依靠在妊娠10-20周的时候通过创伤性操作获得的胎儿组织进行检查，而这往往会导致自发性流产。游离胎儿DNA(ffDNA)早在妊娠早期（6周）的时候就会出现在母体血液之中，能够用于出生前诊断，从而避免侵入性检查，极大地造福了父母，他们其中许多在孕期已经受到了影响。
 
Blood Test Determines Genetic Risks in Fetus
 
A non-invasive blood test has been developed that determines whether a fetus is at risk of developing genetic diseases.

Prenatal diagnosis of genetic diseases currently depends on the investigation of fetal tissue obtained between 10 and 20 weeks gestation by invasive procedures that can cause spontaneous abortion. Free fetal DNA (ffDNA) is present in maternal blood from early in gestation (six weeks) and its use for prenatal diagnosis could avoid invasive testing, with considerable benefit to parents, many of whom will already have had an affected pregnancy.