Scientists have invented a device that can quickly produce large numbers of living entities that resemble very primitive human embryos.
Researchers welcomed the development, described [September 11] in the journal Nature, as an important advance for studying the earliest days of human embryonic development.
“Such human embryo-like structures have a lot of potential to open what we call the so-called black box of human development,” Fu says.
He’s referring to the first few weeks after a sperm fertilizes an egg, when the embryo is inside a woman’s body and hard to study. A long-standing guideline bars scientists from conducting research on embryos in their labs beyond 14 days of development for ethical reasons.
Fu says the ability to produce large numbers of embryoids, which are not subject to the 14-day guideline, will hopefully provide scientists with new insights into important health issues, including how to prevent birth defects and miscarriages. In addition, researchers could use the embryoids to screen drugs, to help determine whether the medications are safe for pregnant women to take.
“Such research can lead to a lot of good,” Fu says.
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