Category: basic life sciences retractions

Diabetes researcher who sued to prevent retractions now has 13

A diabetes researcher who sued a publisher to protect several papers from being retracted recently received his 13th, in a prestigious gastroenterology journal.

Mario Saad, based at the University of Campinas in São Paulo, Brazil, has had a string of retractions over the past few years, including four in Diabetes after he lost a legal battle with the American Diabetes Association.

The latest retraction appears in Gastroenterology, citing possible image duplication. Saad is second-to-last author on the 2012 paper.

According to the retraction notice, the journal investigated data in several figures, and believes some were duplicated. The authors explained that the duplications resulted from inadvertently using wrong blots; still, the editors chose to retract the paper after determining they no longer had confidence in its conclusions.  

Here’s the retraction notice for “Obesity-Induced Increase in Tumor Necrosis Factor-α Leads to Development of Colon Cancer in Mice:” Continue reading Diabetes researcher who sued to prevent retractions now has 13

Volunteer researcher faked weeks’ worth of data

A volunteer researcher at Florida Atlantic University fabricated the results of mouse experiments over a 14-day period in June, 2016, according to a new finding issued by the U.S Office of Research Integrity (ORI).

According to the ORI, Alec Mirchandani made up the results of behavioral experiments to make it seem as if he had done the work, and falsified animal transfer logs, which affected research supported by the National Institute of Mental Health.

More specifically, the ORI determined that Mirchandani had “knowingly and intentionally:”

Continue reading Volunteer researcher faked weeks’ worth of data

Nature retracts paper by stem cell scientist appealing her dismissal

Susana Gonzalez

A once-rising star in stem cell biology — who recently lost both her job and a sizable grant — has had a fourth paper retracted.

The notice — issued by Nature for a 2006 letter — cites duplicated images, and a lack of raw data to verify the findings. First author Susana Gonzalez — who was dismissed from her position at the National Center for Cardiovascular Research (CNIC) in Spain last February over allegations of misconduct — couldn’t be reached by the journal.

Here’s the full text of the retraction notice:

Continue reading Nature retracts paper by stem cell scientist appealing her dismissal

Lost in translation: Authors blame a language error for wrong diagnosis

A patient’s “unusual” brain cyst excited several researchers in China so much they published a paper about it in a major journal. Soon a reader identified a glaring mistake: the authors had described the cause of the cyst incorrectly.  

A month after the paper appeared online in November 2016, the reader — a neurologist — published a letter in the journal, pointing out the incorrect diagnosis. In their response, the authors acknowledged the mistake but said it had occurred not because they had misdiagnosed the patient, but because the diagnosis had been mistranslated from Chinese to English.

The editors of Neurology retracted the paper because of the error and published a new version with the correct diagnosis on the same day, June 6.

Although we did not hear back from the paper’s two corresponding authors—Jun Guo and Guan Sun—the journal published a string of letters that chronicles the case.

Here’s the retraction (and replacement) notice:  

Continue reading Lost in translation: Authors blame a language error for wrong diagnosis

The retraction countdown: How quickly do journals pull papers?

After Tina Wenz was found guilty of scientific misconduct, how long did it take for journals to retract the problematic papers?  The answer: Between three and nine months.

In September 2016, the University of Cologne found that Wenz had committed scientific misconduct in six papers and requested they all be retracted. From that point on, the retraction clock was ticking.

We’ve explored how long it takes a journal to act over the years, and we’ve found that the time between identifying a problem to retracting the paper can vary — and sometimes last years.

In Wenz’s case, one of the papers—published in Cell Metabolism in 2009—had already been retracted in 2015. Three of the remaining five were retracted in December 2016—a 2008 paper in Cell Metabolism, a 2009 paper in Proceedings of the National Academy of Sciences (PNAS), and a 2009 paper in the Journal of Applied Physiology.

In January 2017, the journal IUBMB Life pulled a 2014 paper flagged in the investigation. And just over nine months after Wenz was found guilty of misconduct, the last paper—published in 2013 in Mitochondrion—has been retracted.

The most recent notice states that the University of Cologne requested the retractions, after determining that the data had been “inappropriately manipulated.”

Here’s the retraction notice in Mitochondrion:

Continue reading The retraction countdown: How quickly do journals pull papers?

Fake peer review, forged authors, fake funding: Everything’s wrong with brain cancer paper

The paper had everything: Fake peer review, forged authors, even a fake funder.

In other words, it had nothing.

A 2015 paper is the latest retraction stemming from an investigation into fake peer review by Springer, which has now netted more than a hundred papers.

According to a spokesperson at Springer: Continue reading Fake peer review, forged authors, fake funding: Everything’s wrong with brain cancer paper

“An evolving and inconsistent tale:” Biochemist barred from federal grants for five years

In 2013, Frank Sauer blamed “visual distortion” for problems with the images in his papers and grant applications. That explanation gave way to the production in 2016 of a mysterious and ominous letter from an unnamed researcher claiming that they’d sabotaged Sauer’s work in a plot of revenge. Soon after, Sauer was claiming that a mysterious cabal was plotting to undermine the output of German researchers.

Whatever Sauer was selling, Leslie Rogall, an administrative law judge for the U.S. Department of Health and Human Services’ Departmental Appeals Board, wasn’t buying.

Rogall has concluded that the Office of Research Integrity acted properly in 2016 when it found Sauer — a former faculty member in biochemistry at the University of California, Riverside — guilty of misconduct. His offense: doctoring images in three published papers and seven grant applications to the National Institutes of Health.

In a May 22 decision first posted today, she writes (italics hers):

Continue reading “An evolving and inconsistent tale:” Biochemist barred from federal grants for five years

Cancer paper retracted after author discovers signs of data manipulation

A molecular biology journal has retracted a 2017 cancer paper only two months after it appeared online, after the corresponding author notified the journal about possible data manipulation.

According to the notice, Chunsun Fan, from Qidong Liver Cancer Institute & Qidong People’s Hospital in China, requested the retraction after finding “signs of data manipulation” in the paper that was published online in April. The journal, FEBS Letters, acted quickly, publishing a retraction earlier this month.

Here’s the retraction notice for “MiR-19 regulates breast cancer cell aggressiveness by targeting profilin 1:” Continue reading Cancer paper retracted after author discovers signs of data manipulation

Instead of retracting a flawed study, a journal let authors re-do it. It got retracted anyway.

When a journal discovers elementary design flaws in a paper, what should it do? Should it retract immediately, or are there times when it makes sense to give the researchers time to perform a “do-over?”

These are questions the editors at Scientific Reports recently faced with a somewhat controversial 2016 paper, which reported that microRNAs from broccoli could make their way into the nuclei of human cells — suggesting that the food we eat could affect our gene expression.

After the paper appeared, researcher Kenneth Witwer at Johns Hopkins — who was not a co-author — posted comments on PubMed Commons and the paper itself, noting that the authors hadn’t properly designed the experiment, making it impossible for them to detect broccoli microRNAs. 

But instead of retracting the paper, the journal decided to give the authors time to do the experiments again, this time with correctly designed molecular biology tools. When that failed, they retracted it — and as part of the notice, reported the exact opposite conclusion of the original.

Witwer said the authors did a “tremendous job” with the follow-up study, but he still thinks the journal should have retracted the paper immediately. Letting the authors redo it is “a dangerous precedent to set,” he told us:   

Continue reading Instead of retracting a flawed study, a journal let authors re-do it. It got retracted anyway.

Journal alerts readers to “technical criticism” of CRISPR study

A Nature journal has posted a editor’s note to a recent letter on potential unintended consequences of CRISPR gene editing, after an executive at a company trying to commercialize the technology said the paper should be retracted.

The original article, published on May 30 as a correspondence in Nature Methods, suggested that using CRISPR in mice can lead to unexpected mutations. But last week, the journal added an “Editorial note” online. Nature Methods says the notice is not an expression of concern, which would be a stronger suggestion that the paper is problematic; it simply wants to alert readers to the fact that, as the note states:

Continue reading Journal alerts readers to “technical criticism” of CRISPR study