Study for the Evaluation of "MitoScore" Marker in the Diagnosis of Embryo Viability in Euploids Embryos

The number of copies of mitochondrial genes (mtDNA or "MitoScore") is related to the energy supply of the embryo, which can affect its ability to implant in the maternal uterus. The objective of this study is to analyse the potential of MitoScore before embryo transfer as a marker to identify and select the embryo with greater capacity of implantation. First of all, chromosomally normal embryos will be selected and mtDNA copies will be quantified. Finally, embryos with less copies of mtDNA will be considered for embryo transfer.