⏰ when
When was cell-free fetal DNA first detected in maternal blood?
Quick Answer
Cell-free fetal DNA was first reported in maternal blood in 1997. That discovery made later noninvasive prenatal testing possible.
The Full Story
In 1997, Dennis Lo and colleagues reported that fragments of fetal DNA could be found in the blood of pregnant people. This was a foundational discovery for modern prenatal genetics. It showed that genetic information from the fetus could be studied without invasive sampling. The finding eventually led to noninvasive tests for chromosomal abnormalities and other conditions.
Key Facts
1.Reported in 1997
2.Discovery by Dennis Lo and colleagues
3.Foundation for later NIPT
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Suggested video title for this topic:
"The discovery that made prenatal DNA testing possible"
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