Category: clinical study retractions

Scientist who sued university earns two more retractions, bringing total to five

A scientist who sued his employer for millions of dollars has earned two more retractions, for papers that had already been flagged by the journal.

By our count, Rakesh Kumar now has five retractions and multiple corrections.

Kumar sued his employer, George Washington University, for $8 million, alleging emotional distress when they put him on leave from his position as department chair following a finding of misconduct. That suit was settled last year, for undisclosed terms.

The two newest retractions in the Journal of Biological Chemistry — which tagged the papers with Expressions of Concern last year — both state that, according to Kumar, the problematic figures were assembled by “specific co-authors” — unnamed — in his lab. Here’s the first notice:

Continue reading Scientist who sued university earns two more retractions, bringing total to five

Prominent NIH researcher up to a dozen retractions

Stanley Rapoport. Source: NIH

Neuroscientist Stanley Rapoport hasn’t had much luck with his co-authors.

Recently, we’ve reported on multiple retractions of papers co-authored by Rapoport after three different first authors were found to have committed misconduct. Now, the fallout from one of those cases had led to four more retractions, bringing Rapoport’s total to 12.

The latest batch of retractions stem from the actions of Jagadeesh Rao.

Here’s the first notice, issued by Psychopharmacology:

Continue reading Prominent NIH researcher up to a dozen retractions

Editors retract paper about anesthesia procedure after investigation uncovers data issues

The editors of an anesthesiology journal have retracted a paper about predicting how patients will respond to a procedure, after the results of an investigation cast doubt on the validity and originality of the work.

According to the retraction notice, the editors became concerned about the validity of the data and conducted an investigation, which found irregularities, “including misrepresentation of results.” Because the authors could not provide adequate evidence to assuage these concerns, the editors decided to retract the paper.

The paper — about which facial muscles best predict if a patient is ready to be intubated — had already been flagged on F1000: A few years ago, two anesthesiologists from Florida commented that they found the article “confusing,” and felt that the authors “did not prove their hypothesis.”

Here’s the retraction notice for “Comparison of four facial muscles, orbicularis oculi, corrugator supercilii, masseter or mylohyoid, as best predictor of good conditions for intubation: A randomised blinded trial,” published in the European Journal of Anaesthesiology in 2013 and cited once: Continue reading Editors retract paper about anesthesia procedure after investigation uncovers data issues

Negligence by stressed-out postdoc led to retraction of high-profile paper, supervisor says

The timing was tight, but Sergio Gonzalez had done it. Gonzalez, a postdoctoral researcher at the Institute for Neurosciences of Montpellier (INSERM) in France, had a paper accepted in a top journal by the end of 2015, just in time to apply for a small number of highly sought-after permanent research positions that open up in France each year.

If Gonzalez had missed the January deadline for this system of advancement, known as concours, he would have had to wait until the following cycle to apply.

Once his paper was accepted by the Journal of Clinical Investigation, Gonzalez could breathe a sigh of relief. He began being invited to interviews. But then, a comment showed up at PubPeer.

Continue reading Negligence by stressed-out postdoc led to retraction of high-profile paper, supervisor says

Headline-grabbing Science paper questioned by critics

When zoologists at the University of Oxford published findings in Science last year suggesting ducklings can learn to identify shapes and colors without training (unlike other animals), the news media was entranced.

However, critics of the study have published a pair of papers questioning the findings, saying the data likely stem from chance alone. Still, the critics told us they don’t believe the findings should be retracted.

If a duckling is shown an image, can it pick out another from a set that has the same shape or color?  Antone Martinho III and Alex Kacelnik say yes. In one experiment, 32 out of 47 ducklings preferred pairs of shapes they were originally shown. In the second experiment, 45 out of 66 ducklings preferred the original color. The findings caught the attention of many media outlets, including the New York Times, The Atlantic, and BuzzFeed.

Martinho told us:

Continue reading Headline-grabbing Science paper questioned by critics

Journal flags another paper by diabetes researcher who sued to stop retractions

It would seem that resorting to legal means to avoid editorial notices doesn’t always work.

We’re coming to that conclusion after seeing yet another notice for Mario Saad, based at the University of Campinas in São Paulo, Brazil. In this case, it’s an expression of concern from the Journal of Endocrinology, on a 2005 paper that lists Saad as the second-to-last author. According to the notice, the journal is concerned the paper contains spliced and duplicated images; although the authors offered to repeat the experiments, the journal considered that potential delay “unacceptable.”

Despite Saad’s legal efforts, he is now up to 11 retractions, along with multiple expressions of concern.

Here’s the full text of the notice (which is paywalled, tsk tsk):

Continue reading Journal flags another paper by diabetes researcher who sued to stop retractions

“Hindsight’s a bitch:” Colleagues dissect painful retraction

Two blog posts are shining additional light on a recent retraction that included some unanswered questions — namely, the identity of the researcher who admitted to manipulating the results.

To recap: Psychological Science recently announced it was retracting a paper about the relationship between the words you use and your mood after a graduate student tampered with the results. But the sole author — William Hart, an assistant professor at the University of Alabama — was not responsible.

The post raised some questions — for instance, who was the graduate student, and if his or her work was so influential to a paper, why was he/she not listed as an author? Hart declined to identify the student, but two new blogs — including one by one of Hart’s collaborators at the University of Alabama — are providing more details.

Continue reading “Hindsight’s a bitch:” Colleagues dissect painful retraction

Author says he lied about approval for animal research

A researcher in South Korea has retracted a 2015 paper after telling the journal he falsified the institutional approval required to conduct the animal experiments.

In the article, the author explicitly says that the Animal Experiment Review Board of a university based in Seoul, South Korea approved the experiments, but according to the journal, “the author did not receive an approval by the board and he used a false approval number.”

Here’s the retraction notice for “The role of compensatory movements patterns in spontaneous recovery after stroke,” published in the Journal of Physical Therapy Science (JPTS) in September 2015 and retracted in December: Continue reading Author says he lied about approval for animal research

3rd retraction appears for fired Pfizer breast cancer researcher

Pfizer has retracted a paper by a former employee who was fired after the company discovered she had been doctoring data.

The retraction, in Molecular Cancer Research, is the third of five papers Pfizer asked to retract, after an investigation discovered they contained duplicated images. The papers have been discussed on PubPeer, which is also mentioned in the latest retraction notice.

As a result of the investigation, Pfizer terminated the employment of Min-Jean Yin, the last author on the newly retracted paper.

According to the notice, Yin and five of her co-authors agreed to the retraction:

Continue reading 3rd retraction appears for fired Pfizer breast cancer researcher

Unexplained abnormalities in stem cells prompt Columbia researchers to pull diabetes paper

Researchers at Columbia University have retracted a 2013 paper in The Journal of Clinical Investigation, after uncovering abnormalities in the stem cell lines that undermined the conclusions in the paper.

Last year, corresponding author Dieter Egli discovered he could not reproduce key data in the 2013 paper because almost all the cell lines first author Haiqing Hua used contained abnormalities, casting doubt on the overall findings. When Egli reached out to Hua for answers, Hua could not explain the abnormalities. As a result, Hua and Egli agreed the paper should be retracted.

Since some of the details of how the paper ended up relying on abnormal cells remain unclear, the university confirmed to us that it is investigating the matter.

Here’s the retraction notice for “iPSC-derived β cells model diabetes due to glucokinase deficiency,” cited 42 times: Continue reading Unexplained abnormalities in stem cells prompt Columbia researchers to pull diabetes paper