Nobel laureate and renowned physician and scientist Gregg Semenza is facing more than 15 additional paper investigations from various publications, an investigation conducted by Nature has found. Semenza has already seen 17 of his papers retracted, corrected, or raised for concern since 2011. Four were retracted from PNAS just last month. Of the 17 papers of concern, five were retracted as a result of image manipulation, Nature reports.
Semenza shared the 2019 Nobel Prize in Physiology or Medicine with two other scientists for his work on cellular oxygen regulation, and shared the Lasker Award for basic medical research in 2016 for the same work. However, even before he received these awards, some scientists were suspicious of his published results. Users on the website PubPeer, which allows commenters to flag apparent errors or fabrications in published research, have found potential problems in 54 publications on which Semenza is an author.
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