Human Fertilisation and Embryology (Mitochondrial Donation) Regulations 2015 — House of Lords, 2015-02-24
Topic: Health
Narendra Babubhai Patel (Crossbench, Unknown): I thank my noble friend for that interruption. It was worse than that: it was suggested not only that those children might be infertile, but that they might be half monsters of some kind. To answer the question raised earlier about the HFEA’s evidence—yes, it did ask, and the evidence was verbally produced. The reason why it is not published is that anything that is published, even in the form of an extract, cannot then be published in a reputable journal. I know that that evidence has now been sent for publication To go back to the subject of the evidence requested, if we were to go down that road and do those experiments, what would be required in the human population is the deliberate creation and destruction of many hundreds, if not thousands, of embryos—to prove a point that does not require proving. Hundreds and thousands of human embryos have already been tested and found to go to a blastocyst state, and I hope my noble friend Lord Winston will agree that if we see them in that state, the embryo will be satisfactory. He nods slightly The alternative would be human population genetic studies to fulfil that requirement for evidence. What that shows is that exchange of mitochondrial DNA haplotypes by normal reproduction should reveal combinations that are deleterious. Human population genetic studies will do that. Such studies include genome-wide association studies and whole genome sequencing projects looking at many specific diseases and syndromes. Those kinds of studies will be required. They do not require embryos to be created, nor is it necessary to do these studies before this treatment is available I know I am going on a bit, but other points were made. If there are points about epigenetics et cetera, those are also spurious and have no basis in science Let me go now to something that the noble Lord, Lord Deben, mentioned twice: the Chinese example. The technique that was used in the United States and in this Chinese example is called cytoplasmic injection. No doubt the noble Lord, Lord Winston, is more familiar with it from his work than I am. It is a technique that is not allowed in the United Kingdom. That is the first point. It is completely different in design and intent from what we are talking about in mitochondrial replacement; it is nothing to do with it What was done in China was a cytoplasmic injection not for replacing mitochondria, but for infertility treatment in older women. That was also the case in the United States; it was an extra cytoplasm with possible mitochondria in older women, where both are at risk of producing chromosomal abnormality. In China it was used in only one study, which was conducted by an American, Professor Grifo. They inserted five embryos. We do not allow that in the United Kingdom because of the risk of multiple pregnancy. It resulted in a multiple pregnancy. They then tried to reduce the number of foetuses by injecting one of them to reduce the number of foetuses from three to two. I do not know what kind of technique they used—