Fertility experts have discovered how the uterus performs quality control on a new embryo before determining whether to accept it. They hope the discovery will help develop new techniques to improve the success rate of IVF. The team, from the UK Universities of Southampton and Warwick, and the University of Utrecht in the Netherlands, found if the endometrium - the lining of the uterus - fails to sense chemical signals from the fertilized egg, it silences many of the genes involved in allowing it to embed in the uterus...
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