Category: data issues

Authors retract two papers on shock therapy, citing language barriers

the-journal-of-ectAn electroconvulsive therapy (ECT) journal has retracted two 2016 papers after uncovering problems in the data analyses, which the author says were due to language barriers.

Interestingly, two authors of the newly retracted papers — Yu-Tao Xiang from the University of Macau in China and Gabor Ungvari from the University of Western Australia — also recently co-authored another paper on an entirely different topic that has received a lengthy correction. That paper — on the use of organs from executed prisoners in China — raised controversy for allegedly reporting a “sanitized” account of the practice. The correction notice, in the Journal of Medical Ethics, was accompanied by a critics’ rebuttal to the paper.

According to Xiang, the newly retracted papers in The Journal of ECT — which examined the efficacy of ECT in treating schizophrenia — were pulled due to “genuine errors” resulting from differences in language. All the authors agree with the retraction, Xiang noted. 

Xiang told us: Continue reading Authors retract two papers on shock therapy, citing language barriers

Author asks to retract nearly 20-year old paper over figure questions, lack of data

journal-of-biological-chemistryThe last author of a 1999 paper has asked the journal to retract it less than one month after a user raised questions about images on PubPeer.

Yesterday, last author Jim Woodgett posted a note on the site saying the author who generated the figures in question could not find the original data, and since he agreed the images appeared “suspicious,” he had contacted the journal to retract the paper.

Here’s the note from Woodgett, based at Lunenfeld-Tanenbaum
Research Institute at Mount Sinai Hospital in Toronto: Continue reading Author asks to retract nearly 20-year old paper over figure questions, lack of data

Authors retract 2016 cancer study when data don’t align with figures

cell-death-and-differentiationResearchers have retracted a 2016 cancer study, citing discrepancies between the data and images presented in the paper. 

Although the retraction notice itself contains relatively little information, we’ve obtained a letter from the last author — Jun-Li Luo of The Scripps Research Institute in Jupiter, Florida — to the editor-in-chief of Cell Death and Differentiation that says a bit more. 

According to the letter, after receiving the anonymous email, Luo conducted an investigation, contacting co-authors who contributed each of the figures in question. Although Luo writes that he has no reason to suspect fraud, the researchers were not able to provide some of the original data.

PubPeer commenters have questioned figures 1, 3, 4, 5, 6 and 7 in the study, “IKKα-mediated biogenesis of miR-196a through interaction with Drosha regulates the sensitivity of cancer cells to radiotherapy.”

In the letter, Luo tells Gerry Melino, co-editor-in-chief of the journal from the University of Leicester, UK, that figures 3D and 3E were provided by the study’s first author, Xing Fang, adding: Continue reading Authors retract 2016 cancer study when data don’t align with figures

Correction cites “unreliable” data in paper by researchers at center of Duke lawsuit

Journal of Biological ChemistryA researcher charged with embezzlement — and now the subject of a multi-million dollar lawsuit — has earned another correction, again citing “unreliable” data.

But this doesn’t appear to be a run-of-the-mill correction notice.

Firstly, it affects a paper co-authored by Erin Potts-Kant and William Foster, former Duke employees now being sued (along with Duke) for including fraudulent data in $200 million worth of federal grants. Secondly, the notice in the Journal of Biological Chemistry is four paragraphs long, and includes six figures — it would normally be considered a “mega-correction.” But lastly, even though the notice is labeled a “correction,” it’s not immediately apparent which aspects of the paper are being changed.

Here are some excerpts from the newest notice: Continue reading Correction cites “unreliable” data in paper by researchers at center of Duke lawsuit

Two more retractions bring bone researcher’s total to 12

jbmrA bone researcher based in Japan with 10 retractions under his belt has retracted two more papers for similar reasons — problems with the underlying data, and including co-authors who didn’t participate in the project.

In both notices, Yoshihiro Sato is pegged as responsible for the content of the papers. The newly retracted research covers a long timespan — one paper was published in 2000, the other in 2013.

Here’s the first notice, issued by the Journal of Bone and Mineral Research:  Continue reading Two more retractions bring bone researcher’s total to 12

Authors didn’t generate key brain images, probe finds

Frontiers in Human NeuroscienceA neuroscience journal has issued a retraction after discovering some of the paper’s integral images didn’t originate from the authors’ labs.

The retraction notice  — for a study about a condition once known as “water on the brain” — cites an investigation by the journal’s publisher, Frontiers, which determined that the figures were not “duly attributed.” The authors say they agree with the retraction.  

Here’s the retraction notice for “Revisiting hydrocephalus as a model to study brain resilience,” published by Frontiers in Human Neuroscience: Continue reading Authors didn’t generate key brain images, probe finds

Biologist loses second paper — again, for unvalidated figures

Cellular SignallingA researcher at Case Western Reserve University in Ohio has retracted a second paper after a review found the figures didn’t match the original data.  

Last year, we reported on a previous retraction of a paper co-authored by biologist Alan Levine in Inflammatory Bowel Diseases, which was pulled for the exact same reason; even the retraction notices use similar language. The first author on both papers is Debasmita Mandal, also listed at Case Western Reserve University.

Here’s the retraction notice for “REDOX regulation of IL-13 signaling in intestinal epithelial cells: usage of alternate pathways mediates distinct gene expression patterns,” published by Cellular Signalling: Continue reading Biologist loses second paper — again, for unvalidated figures

Second retraction for bone researcher with lifetime funding ban

via WCH
via WCH

A researcher banned from funding by a Canadian agency for misconduct has earned her second retraction, after a reanalysis uncovered problems with the paper’s conclusions.

The retraction follows an investigation by Sophie Jamal‘s former workplace, the Women’s College Hospital in Toronto, which has led to a recent retraction of a JAMA paper due to data manipulation, and a lifetime funding ban from the Canadian Institutes of Health Research (CIHR).

The latest retraction stemmed from a re-analysis of the paper by the Canadian Multicentre Osteoporosis Study Group, of which the paper was a part; all authors but Jamal have requested the retraction. In the notice, the authors say that they believe no patients were harmed as a result of the “possibly invalid conclusions” in the paper, which showed patients with kidney problems were at higher risk of bone loss. A researcher told us a third paper by Jamal is also due to be retracted soon.

Here’s the retraction notice, issued by the American Journal of Kidney Diseases (AJKD): Continue reading Second retraction for bone researcher with lifetime funding ban

Nutrition study pulled after statistical flaws emerge

Nutrition JournalA paper that suggested that eating flaxseed could reduce inflammation in men at risk of heart disease has been retracted, after researchers pointed out the paper’s flaws.

The retraction is part of a large initiative on the part of nutrition researcher David Allison and colleagues to clean up the literature, which we’ve previously covered. Regarding this paper, he told us:

When we looked at the study…it was very clear that the statistical methods used were not correct. These are not matters of debate or opinion, these are just…verifiably incorrect.

The Nutrition Journal published the paper in January 2015, and retracted it in June 2016, one day after publishing a letter by Allison and a colleague critiquing the paper. 

Here’s the retraction notice for “Impact of weight loss diet associated with flaxseed on inflammatory markers in men with cardiovascular risk factors: a clinical study:” Continue reading Nutrition study pulled after statistical flaws emerge

Author to retract study warning of toxic leaks from Damien Hirst’s artwork

via Flickr Commons
Damien Hirst’s “Away From The Flock” — exhibited at Tate Britain, via Flickr Commons

The corresponding author of the 2016 study that found high levels of the carcinogen formaldehyde leaking from a prominent British artist’s exhibition is now retracting it.

The study, about Damien Hirst’s 2012 exhibition at the Tate Gallery in London that presented dead animals embalmed in glass cases full of formaldehyde, suggested that higher than recommended limits of the carcinogen were being released from the exhibition. The study was widely covered by the media, which raised concerns over possible health hazards to visitors.

As we reported yesterday, the journal Analytical Methods had already issued an expression of concern (EOC), noting that the corresponding author of the paper, Pier Giorgio Righetti of the Polytechnic University of Milan in Italy, warned the paper may contain unreliable data.

Today, Righetti released a joint statement with Hirst’s company, Science Ltd, stating that he will be retracting the paper (reported earlier today by the New York Times). It reads:   Continue reading Author to retract study warning of toxic leaks from Damien Hirst’s artwork