Thursday, May 16, 2013

Scientists have cloned a human embryo. For the first time successfully - On 24

Researchers from Oregon Health and Science University has managed to clone a human embryo. They accomplished this by the same method, which was cloned in 1996, Dolly the sheep.

authors make informed that they cloned embryos will be used as a source of embryonic stem cells, which are one of the best hopes of defeating previously incurable diseases.

stem cells are allowed to grow a new cardiac muscle cells, bone, brain tissue and any other body tissue. However, other people’s cells do not fit perfectly to the patient and may be rejected by the body. Cloning own cells avoids this problem.

Information published in the scientific journal “Cell”. To clone a human embryo used the same method as for the cloning of Dolly the sheep, ie. somatic nuclear transfer. In short, the skin cells of adult animals are mined kernel, and then places them in the “empty” egg cell donors, which have removed its own genetic material. With the help of electrical impulses and then encouraged her to divide and develop into an embryo.

For a man so far this does not pretend to be, because cell division stopped at the level of 6-12 cells. Researchers at Oregon Health and Science have reached the level of the division of the embryo into 150 cells, or blastocyst, enough already to get stem cells.

The fina l confirmation of whether the experiment was successful, it will prove that the cells taken from the embryo actually can develop into any desired cell of the body, including in particular nerve cells, liver cells and heart – said the leader of the team, Dr. Shoukhrat Mitalipov said in an interview with the BBC.

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