| Donor DNA in the blood is an early sign of heart transplant rejection. |
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| EurekAlert: Heart transplant recipients and their physicians are likely more concerned with the function of the donated organ than with the donor's DNA sequences that tag along in the new, healthy tissue. However, researchers at the Stanford University School of Medicine have shown that an increase in the amount of the donor's DNA in the recipient's blood is one of the earliest detectable signs of organ rejection. |