‘Three-parent baby’ boy healthy so far | Science News

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‘Three-parent baby’ boy healthy so far

Three other embryos created by technique had wrong chromosome count

By
4:44pm, October 19, 2016
egg fertilization

SO FAR, SO GOOD  Doctors say an infant boy, born in April as the result of a  “three-parent baby” technique, is doing well and shows no signs of having inherited a fatal mitochondrial disease from his mother.

New details about a baby boy born with genetic material from his mother, his father and a female donor show the promise and drawbacks of a technique used to produce a “three-parent baby.” Called spindle transfer (SN Online: 10/18/2016), the technique is designed to avoid passing on potentially harmful DNA mutations in the mother’s mitochondria, powerhouse organelles that contain their own genetic material.

Now 6 months old, the baby boy appears to be healthy, John Zhang of New Hope Fertility Center in New York City said October 19 during a news conference at a meeting in Salt Lake City of the American Society for Reproductive Medicine. The baby’s average portion of mitochondrial DNA from his mother — some of whose mitochondria have a mutation that causes a fatal neurological disorder called Leigh syndrome — is less than 1.6 percent, Zhang and colleagues

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