Monday 20 November 2017

Defective embryos 'self-correct'

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IVF embryos with defective chromosomes stand a reasonable chance of "self-correcting" and delivering healthy babies, research has shown.

An Italian study found that even when more than half the cells were abnormal, they produced a live birth rate of 16.7pc.

But the research also showed that embryos with a lower level of abnormality resulted in a much higher birth rate of 39.5pc.

The study of 73 women helps resolve the controversial issue of when to transfer embryos created by In-Vitro Fertilisation to the womb and when to discard them. Until recently, almost all "mosaic" embryos containing a mixture of chromosomally normal and abnormal cells were discarded.

The new research shows that mosaic embryos fall between two stools in terms of their ability to implant and develop.

Irish Independent

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