Duke researcher adds another retraction in JCI, bringing count to 15

JCIWe’ve found another retraction for Erin Potts-Kant, a former researcher at Duke, bringing her total to 15.

Yesterday we reported on two new retractions for Potts-Kant in PLoS ONE, which earned her a spot in the top 30 on our leaderboard. As with the others, the latest paper, in the Journal of Clinical Investigation, is marred by “unreliable” data.

Here’s the retraction notice for “In utero supplementation with methyl donors enhances allergic airway disease in mice“:

Continue reading Duke researcher adds another retraction in JCI, bringing count to 15

Former Pitt postdoc admits to faking data

pittA former postdoc at the University of Pittsburgh has admitted to committing research misconduct in published papers and in National Institutes of Health (NIH) grant applications.

The Office of Research Integrity (ORI) said on Friday that Kenneth Walker, who was studying the development of the urinary tract,  Continue reading Former Pitt postdoc admits to faking data

Stem cell researchers fix two papers following PubPeer comments

Screen Shot 2016-04-13 at 5.56.09 PMA pair of stem cell researchers have earned two corrections, the result of images that were mislabeled, distorted, or compiled incorrectly, according to the notices.

Kang Cheng prepared the gels when he was a research fellow in last author Sanjeev Gupta‘s lab at the Albert Einstein College of Medicine. Gupta told us he reviewed the original gels, and the errors didn’t affect the conclusions in the papers, which were reproducible. He noted he believes the problems are the result of honest mistakes:

The errors did not confer any benefits whatsoever either for the papers or for Dr. Cheng.

On PubPeer, commenters have raised questions about the now corrected papers — along with several others on which Gupta is the senior author, but Cheng is not a co-author.

Edward Burns, research integrity officer at Einstein, told us that the medical school looked into an allegation of misconduct against Gupta:  

Continue reading Stem cell researchers fix two papers following PubPeer comments

Physics journal pulls two papers for data shortcuts

New Journal of PhysicsA publisher is retracting two papers today by a team of physicists who took a short cut in reporting their data.

The papers present a method for imaging very small things — like biological processes on a molecular scale — that could be an alternative to electron microscopy, as the authors explain in a video. But after the papers were published in the New Journal of Physics, last author Ulf Leonhardt, now based at the Weizmann Institute of Science, found out that some of the data

 were pixel-by-pixel mirror-symmetric, which is impossible for genuine experimental data.

One of the researchers co-authored a subsequent paper that acknowledges one of the papers incorrectly assumed the data were symmetrical, and could therefore be extrapolated from one side to the other. A representative of the publisher told us they have not seen any signs of misconduct, and the problem seemed to result from a “series of apparent miscommunications between the authors.”

Here’s the retraction notice for “Evidence for subwavelength imaging with positive refraction:” Continue reading Physics journal pulls two papers for data shortcuts

Does posting on PubPeer count as prior publication? Journal says yes, rejects letter rebutting campus sexual assault data

Jim Hopper

Journals typically shy away from publishing data and text readers have seen before — but amidst the newly established norms of open science and data sharing, what counts as a prior publication?

We’re asking ourselves that question after learning that JAMA Pediatrics has rejected a letter rebutting a recent study in the journal about sexual assault on college campuses after deciding that posting the letter on PubPeer is a prior publication.

The submitted letter (which you can read here) was co-authored by independent consultant, therapist and researcher Jim Hopper, who is also a Teaching Associate in Psychology at Harvard Medical School. It concerned a 2015 paper published in JAMA Pediatricswhich suggested that the long-held belief that most rapists on college campuses are repeat offenders may be false. The findings can have major implications for university efforts to stop assaults, as institutions weigh whether to divert resources towards punishment (if serial offenders are largely responsible) or prevention (if most men only commit assaults once). Continue reading Does posting on PubPeer count as prior publication? Journal says yes, rejects letter rebutting campus sexual assault data

Authors correct highly cited biology paper due to “genuine mistake”

Journal of Cell ScienceAuthors of a highly cited biology paper in the Journal of Cell Science (JCS) have corrected the data underlying one of the figures.

The 2003 paper, “The transcription factor Slug represses E-cadherin expression and induces epithelial to mesenchymal transitions: a comparison with Snail and E47 repressors,” has been cited 566 times, according to Thomson Reuters Web of Science. One of the authors is the last author on a recent high profile retraction from Nature Genetics, which cost the first author a grant from the European Molecular Biology Organisation.

The correction note tells us a bit more: Continue reading Authors correct highly cited biology paper due to “genuine mistake”

Raw files help fix 2003 figure by heart researcher accused of fraud

7.cover

A researcher accused of misconduct by an anonymous Japanese blogger has corrected a 2003 paper in Circulation Research, after providing a university investigation with the original source files.

Allegations of fraud have dogged Shokei Kim-Mitsuyama for years, and even caused him to step down from his position as editor in chief at another journal. However, Kim-Mitsuyama and his colleagues call the latest correction a “mistake,” which didn’t affect any of the paper’s conclusions.

We’ve unearthed a total of five publications co-authored by Kim-Mitsuyama that have earned corrections, the latest of which cites an investigation by the university:

Continue reading Raw files help fix 2003 figure by heart researcher accused of fraud

Authors retract, replace highly cited JAMA Psych paper for “pervasive errors”

JAMA PsychiatryAuthors have retracted a highly cited JAMA Psychiatry study about depression after failing to account for some patient recoveries, among other mistakes.

It’s a somewhat unusual notice — it explains that the paper has been retracted and replaced with a new, corrected version.

The study, which included 452 adults with major depressive disorder, concluded that cognitive therapy plus medication works better to treat depression than pills alone. But after it was published, a reader pointed out that some of the numbers in a table were incorrect. The authors reviewed the data and redid their analysis, and discovered “a number of pervasive errors.”

The notice (termed “notice of retraction and replacement”) explains the consequences of those errors:

Continue reading Authors retract, replace highly cited JAMA Psych paper for “pervasive errors”

JACS imaging paper “under editorial review” has been replicated, says author

JACS The author of a paper “under editorial review” at the Journal of the American Chemical Society has told us the results the paper have been replicated, contrary to claims made by a former member of her lab.

What’s more, the author said she has submitted a correction to the paper, which is currently flagged with an expression of concern, to provide uncropped images.

We originally reported on the case in February from the perspective of Roger Wong, a former chemist at Hong Kong University who said he hasn’t been able to replicate the findings out of the lab of Dan Yang, a current chemistry professor at HKU (who is female, despite the fact that “Dan” is frequently used as a male name in English). We unfortunately failed to reach Yang in February because of an email glitch; once we contacted Yang, she told us she does not believe Wong’s side of the story:

Continue reading JACS imaging paper “under editorial review” has been replicated, says author

Singapore investigation leads to another retraction, correction for Harvard research fellow

Screen Shot 2016-03-25 at 8.12.49 AM

After an investigation found evidence of misconduct, a biologist has issued a third retraction.

Sudarsanareddy Lokireddy — now a research fellow at Harvard Medical School — “admitted falsification,” a Research Integrity Officer at Nanyang Technological University in Singapore told us in December. According to The Scientist, another journal has also published a correction that the authors had requested earlier.

The newly retracted paper is “Myostatin is a novel tumoral factor that induces cancer cachexia,” published in Biochemical Journal and cited 40 times, according to Thomson Reuters Web of Science. Here’s the retraction note: