BioNews - Why we should back a law change to allow mitochondrial transfer into the clinic: This technique involves replacing the faulty mitochondria with healthy mitochondria from a donated egg. This is done as part of the IVF process, either before an egg is fertilised (using a technique called maternal spindle transfer) or after fertilisation (pronuclear transfer). These techniques have proven successful at replacing the mitochondria in the laboratory.
If these techniques were to come into clinical practice they would give families affected by mitochondrial disease the opportunity to have healthy children. However, there is still work to be done before this could happen because although research on these techniques is allowed in the laboratory, the law currently prohibits implantation of any resulting embryos into the mother.
Related: Beyond the treatment of infertility
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