First MRT Baby Born

Scientists in Mexico achieved the infant’s conception using mitochondrial replacement therapy.

Written byBob Grant
| 2 min read

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WIKIMEDIA, EUGENE ERMOLOVICHThis April, a couple from Jordan welcomed into the world their son, the first baby born as a result of targeted mitochondrial replacement (MRT) or “three-parent IVF.”

“This is huge,” Richard Paulson, president-elect of the American Society for Reproductive Medicine, told The New York Times after the birth of the boy was first reported by New Scientist on Tuesday (September 27).

The mitochondrial replacement therapy was performed by US-based scientists in a clinic in Mexico. The procedure is currently banned in the U.S., despite an ethical seal of approval from the Institute of Medicine of the National Academies of Sciences, Engineering, and Medicine earlier this year. Regulators in the U.K. OKed application of the technique—which involves using ooctyes from two women and sperm from one man and can be used to create offspring with reduced chances of inheriting mitochondrial disorders from their parents—last year.

The boy’s parents underwent the procedure because the ...

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Meet the Author

  • From 2017 to 2022, Bob Grant was Editor in Chief of The Scientist, where he started in 2007 as a Staff Writer. Before joining the team, he worked as a reporter at Audubon and earned a master’s degree in science journalism from New York University. In his previous life, he pursued a career in science, getting a bachelor’s degree in wildlife biology from Montana State University and a master’s degree in marine biology from the College of Charleston in South Carolina. Bob edited Reading Frames and other sections of the magazine.

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