Widespread Data Duplication

Around one out of every four cancer papers scrutinized in a recent study contains questionable figures, and journals and authors aren’t responding to requests for clarification.

Written byKerry Grens
| 2 min read

Register for free to listen to this article
Listen with Speechify
0:00
2:00
Share

WIKIMEDIA, MAGNUS MANSKE

Of a sampling of 120 papers from three cancer-related journals, around 25 percent contained what appeared to be duplicated images, according to an analysis from Oslo University Hospital’s Morten Oksvold. At least half of these images were duplicates from different experiments, and the most common problem was the duplication of loading controls in Western blots.

Oksvold contacted both the authors of the papers in question and the respective journal editors in October 2014, yet by May 2015, “no editorial replies have been received so far,” he wrote in his report, published in Science and Engineering Ethics last week (June 12).

“This is just indefensible,” according to Discover’s Neuroskeptic. “Oksvold’s allegations deserve to be taken seriously.”

Oksvold had collected 40 papers continuously as they were published ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to more than 35 years of archives, as well as TS Digest, digital editions of The Scientist, feature stories, and much more!
Already a member? Login Here

Related Topics

Meet the Author

  • kerry grens

    Kerry served as The Scientist’s news director until 2021. Before joining The Scientist in 2013, she was a stringer for Reuters Health, the senior health and science reporter at WHYY in Philadelphia, and the health and science reporter at New Hampshire Public Radio. Kerry got her start in journalism as a AAAS Mass Media fellow at KUNC in Colorado. She has a master’s in biological sciences from Stanford University and a biology degree from Loyola University Chicago.

    View Full Profile
Share
Illustration of a developing fetus surrounded by a clear fluid with a subtle yellow tinge, representing amniotic fluid.
January 2026

What Is the Amniotic Fluid Composed of?

The liquid world of fetal development provides a rich source of nutrition and protection tailored to meet the needs of the growing fetus.

View this Issue
Human-Relevant In Vitro Models Enable Predictive Drug Discovery

Advancing Drug Discovery with Complex Human In Vitro Models

Stemcell Technologies
Redefining Immunology Through Advanced Technologies

Redefining Immunology Through Advanced Technologies

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Beckman Coulter Logo
Conceptual multicolored vector image of cancer research, depicting various biomedical approaches to cancer therapy

Maximizing Cancer Research Model Systems

bioxcell

Products

Refeyn logo

Refeyn named in the Sunday Times 100 Tech list of the UK’s fastest-growing technology companies

Parse Logo

Parse Biosciences and Graph Therapeutics Partner to Build Large Functional Immune Perturbation Atlas

Sino Biological Logo

Sino Biological's Launch of SwiftFluo® TR-FRET Kits Pioneers a New Era in High-Throughout Kinase Inhibitor Screening

SPT Labtech Logo

SPT Labtech enables automated Twist Bioscience NGS library preparation workflows on SPT's firefly platform