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    The biopolitics of frozen embryos

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    The unresolved debate about frozen embryos has left open the discussion on "what to do with them". There are only three ways to deal with frozen embryos: 1) to leave them frozen indefinitely; 2) to defrost and discard them and 3) to use them for research. In this paper, we suggest that the application of current scientific knowledge, instead of inappropriately referring to ethical principles or to the concept of person, could help with the decision about what to do with hundreds of thousands of frozen embryos, thus bringing the sensitive debate on bioethical issues to shared practical solutions. We face a new individual only when a new functional copy of his genome is formed. In both natural and artificial animal and plant reproduction, this principle applies. This status occurs in humans at the 4-8 cell stage. Acknowledgement of this factual datum would allow advocates of all religious and ideological beliefs to defend their principles and to realign their positions to a setting within the boundaries of current scientific knowledge

    Study an egg today to make an embryo tomorrow.

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    When accepting to guest edit this Special Issue, our thoughts went, of course, to our peers who would take advantage of the contributions included, but also to younger researchers and students and to how they would benefit from the use of this Special Issue as an open window to move in depth into some of the most updated advancements in our knowledge of the female gamete. The breathtaking sense of wonder that the female germ cell inspires is well summarised by the renowned phrase of William Harvey ‘Ex ovo omnia’, remarked on in a short black and white film titled ‘In the Beginning’ (http://archive.org/details/IntheBeg1937), a motion picture made by the U.S. Department of Agriculture, Bureau of Dairy Industry, sometime between 1935-1937 that starts, again, with Harvey’s ‘All animals, even the viviparous ones and even man himself, take their origin from eggs’ and continues showing what we believe to be one of the firsts successful attempts to film, with an educational purpose, the gametes during fertilisation and the preimplantation embryos during their segmentation divisions. When the light is switched back, the projection is punctually followed by moments of silence, when we realise that, although almost 80 years have passed since that film was made, our knowledge of mammalian gametes and reproduction has improved very little – though it is a precious little. It is to this "little" that we dedicate this Special Issue
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