STOCKHOLM, Sweden -- Americans Andrew Z. Fire and Craig C. Mello won the Nobel Prize in medicine Monday for discovering a powerful way to turn off the effect of specific genes, opening a potential new avenue for fighting diseases as diverse as cancer and AIDS. The process, called RNA interference, also is being studied for treating such conditions as hepatitis virus infection and heart disease. It is already widely used in basic science as a method to study the function of genes.
2 Americans share Nobel Prize in medicine
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