According to the authors, they successfully reprogrammed skin cells into a three-dimensional cellular structure that
Such an embryo is also called a blastocyst:it is formed a few days after the fertilization of the egg. In humans, it is a ball with a diameter of a fraction of a millimeter, inside which there is a liquid and embryonic cells. Subsequently, an embryo is formed from the blastocyst after several stages.
This will make it possible to study in detail the first stages of human development, to understand some of the causes of infertility, or to find out why miscarriage occurs more oftenduring the first two weeks of pregnancy, without using real human embryos obtained by fertilizing an egg with a sperm cell.
José Polo, Head of Study
According to the authors, their developed model will allow studying the early stages of human embryogenesis and some causes of infertility and miscarriage in the early stages.
Previously, such work was hampered by legal and ethical restrictions that did not allow working with human embryos.
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