Controversial ‘3-Person IVF’ Fails to Boost Fertility in Older Women

The experimental procedure is banned in the United States but is being offered at clinics abroad as a treatment for infertility

A pipette pulls out the nuclear DNA from an unfertilized egg, a key step in mitochondrial replacement therapy. Credit: OHSU

An experimental and much-hyped reproductive procedure that mixes DNA from three people is not effective at boosting the chances of having…