Scientists have learned to edit human DNA

A group of American and South Korean scientists conducted research on human embryos, in which DNA mutations of certain diseases were found. The materials of the experiments and the results of the work can be found in the scientific periodical “Nature”. In order to be able to work with human DNA and learn how to edit them, the eggs of twelve healthy women were taken. As for the male bio material, for the fertilization was taken the sperm of a person who had a certain mutation, and she was “cut out” before the process using CRISPR-Cas9. In the laboratory, scientists managed to edit the gene, eliminating the mutation with the disease.

In the course of the experiment, it was observed that a healthy gene from deoxyribonucleic acid material was used instead of the deleted gene. This made it possible to establish that embryos independently edit themselves if they have a copy of a healthy gene available. Such studies allow us to understand how people genes can be edited so that at the fertilization stage all sorts of mutations can be eliminated so that the future child is healthy and hereditary diseases from parents are not passed on to him. In practice, it turned out that the DNA change with the help of CRISPR-Cas9 is much more complicated than expected, but now it is a real achievement to change genes. The success of this experiment is demonstrated by the fact that after interference and editing of DNA there were no negative consequences, violations and unforeseen changes. This gives good reason to assume that in the future people will be able to change genes on their own so that the offspring will become healthier and stronger than previous generations. Also it will allow to overcome many ailments transmitted by inheritance.