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Subject Forensics find donor DNA in semen of bone marrow transplant patient

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Original Message A US bone marrow transplant recipient found out that the DNA of his German donor was not limited to his blood.

After a successful transplant to treat his acute myeloid leukaemia, Chris Long was encouraged by his colleagues at Washoe County Sheriff's Department in Nevada to see how the transplant affected his DNA. As expected, Long's blood composition changed as his own blood cells were replaced by ones carrying the donor's DNA, created by the donated marrow cells. But the donor DNA was also found in other, unexpected parts of Long's body.

Four months after the transplant, mouth swabs detected both Long's DNA, and that of his donor. Furthermore, after four years the DNA in his semen had been entirely replaced by his donor's. Of the samples taken, only the DNA in Long's chest and head hair remained unchanged.

This is frightening.

Continue reading: [link to www.bionews.org.uk (secure)]

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