The first baby conceived using the DNA of three individuals in the embryo was born last April. An international medical team used an unprecedented technique that involves transferring the genetic material from the nucleus to prevent transmission of the mother’s defective genes that cause Leigh syndrome.

The physicians transferred genetic material containing the mother’s chromosomes to a donor’s egg whose genetic material had been removed. The technique that was performed in Mexico by Dr. Zhang was presented at the ASRM annual conference that was be held in October in Salt Lake City, Utah, which Cryo Bio System was attending.