3 scientists split Nobel Medicine prize for uncovering how cells use oxygen

2019 Nobel Prize in Medicine
(Image credit: Jonathan Nackstrand/AFP via Getty Images)

Two Americans and one British scientist were awarded the Nobel Prize for Physiology or Medicine on Monday for their work uncovering "how cells sense and adapt to oxygen availability," the Nobel Assembly at the Karolinska Institute announced. "Animals need oxygen for the conversion of food into useful energy," but until William Kaelin Jr., Peter Ratcliffe, and Gregg Semenza "identified molecular machinery that regulates the activity of genes in response to varying levels of oxygen," the institute explained, nobody knew how cells adapted.

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Peter Weber, The Week US

Peter has worked as a news and culture writer and editor at The Week since the site's launch in 2008. He covers politics, world affairs, religion and cultural currents. His journalism career began as a copy editor at a financial newswire and has included editorial positions at The New York Times Magazine, Facts on File, and Oregon State University.