Category: data issues

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JournalA paper that suggested that eating flaxseed could reduce inflammation in men at risk of heart disease has been retracted, after researchers pointed out the paper’s flaws.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

Study warning of toxic leaks from Damien Hirst’s work may not be reliable, says author

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

A study that found high levels of the carcinogen formaldehyde leaking from an exhibition by a prominent British artist may have unreliable data, according to its corresponding author.

The 2016 study about Damien Hirst’s exhibition at the Tate gallery in London in 2012 — which involved keeping dead animals in formaldehyde in glass cases — sparked concern in the mainstream media over the exhibition’s potential hazards to visitors.

But now the corresponding author of the paper —  Pier Giorgio Righetti of the Polytechnic University of Milan in Italy — has alerted the journal, Analytical Methods, of the paper’s shortcomings. The journal has issued an expression of concern (EOC), and is investigating.

Here’s the EOC, issued this week: Continue reading Study warning of toxic leaks from Damien Hirst’s work may not be reliable, says author

Researcher who sued to stop retractions earns his 7th

Mario Saad
Mario Saad

A diabetes researcher who sued to stop a publisher from retracting his papers has just received his seventh retraction.

The latest retraction for Mario Saad, who is based at the University of Campinas (Unicamp) in São Paulo, Brazil, is for a PLOS ONE paper (which was altered last year by a mega-correction). Although an institutional investigation found no evidence of research misconduct, the notice states:

the preparation of the figures falls below the standard of publication and therefore the authors and the editors have agreed that the correct action is to retract the article. 

Saad previously sued the American Diabetes Association (ADA) to remove expressions of concern from four of his papers published in the organisation’s flagship journal, Diabetes. However, all four of the papers were later retracted after the suit was dismissed in 2015.

Here’s the new retraction notice, issued July 8: Continue reading Researcher who sued to stop retractions earns his 7th

Authors retract study that found pollution near fracking sites

Environmental Science and TechnologyThe authors of two environmental papers, including one about the effects of fracking on human health, have retracted them after discovering crucial mistakes.

One of the studies reported an increased level of air pollution near gas extraction sites, and the other suggested that 2010’s Deepwater Horizon oil spill in the Gulf of Mexico contributed to air contamination.

According to the corresponding author of both papers, Kim Anderson at Oregon State University, the journal plans to publish new versions of both papers in the next few days. In the case of the fracking paper, the conclusions have been reversed — the original paper stated pollution levels exceeded limits set by the U.S. Environmental Protection Agency (EPA) for lifetime cancer risk, but the corrected data set the risks below EPA levels.

The fracking paper received some media attention when it was released, as it tapped into long-standing concerns about the environmental dangers of hydraulic fracturing (fracking), which extracts natural gas from the earth. A press release that accompanied the paper quoted Anderson as warning: Continue reading Authors retract study that found pollution near fracking sites

Unwitting co-author requests retraction of melatonin paper

Screen Shot 2016-06-08 at 10.54.58 PMNine years ago, a well-known pharmacologist hosted a researcher from another university in his lab. On a Saturday night last September, he learned while surfing Google Scholar that they had published a paper together.

Marco Cosentino, who works at the University of Insubria in Italy, know that Seema Rai, a zoologist at Guru Ghasidas Vishwavidyalaya in India, had collected data during during her six months in his lab, but had warned her they were too preliminary to publish. She published the data — on melatonin’s role in immunity — anyway, last summer in the Journal of Clinical & Cellular Immunology, listing Cosentino as the second author.

The day after he discovered the paper, Cosentino sent an email to the editor in chief of the journal, Charles Malemud, explaining why he did not approve of the publication:

Continue reading Unwitting co-author requests retraction of melatonin paper

“We were completely shocked:” Plant biologists issue mega-correction

Plant Cell cover

Plant biologists have issued a major correction (what we dub “mega“) after realizing a significant mistake in their experiment.

The 2014 paper shows that a protein known as RAP plays a key role in chloroplast biogenesis. But as Ludwig Maximilians University-based authors Alexandra-Viola Bohne and Laura Kleinknecht continued to do their research, they found an error in the design of primers they used to synthesize the RNA for their experiments — and told us they are concerned other researchers could run into the same problem.

Although the authors considered retracting the paper, since its main conclusion was unaffected, they issued a correction notice, published in April in Plant Cell:

Continue reading “We were completely shocked:” Plant biologists issue mega-correction

Authors retract PNAS paper suggesting silk stabilizes vaccines

PNASA PNAS paper that caught the media’s attention for suggesting that adding silk could stabilize vaccines and antibiotics has been pulled after the authors realized there were significant errors in the data analysis. 

According to the notice, the authors agreed to retract the 2012 paper; however, the corresponding author told us the authors did not think a retraction was required as, according to him, the conclusions remained valid.

The paper presented a solution to the long-standing problem that sensitive biological compounds such as vaccines and antibiotics begin to lose their effectiveness outside the recommended temperature range, and naturally biodegrade over time. The degradation process cannot be reversed, and may even speed up during transport or storage under less ideal temperatures.

Here’s the retraction notice: Continue reading Authors retract PNAS paper suggesting silk stabilizes vaccines

Authors pull Nature paper about DEET and flies

Nature CoverAuthors have retracted a Nature paper which identified neurons that render flies sensitive to a potent insect repellent, after losing confidence in the findings. The first author, however, said she does not agree with the retraction, noting that she continues to believe the data are correct.

According to the notice, the remaining authors say they no longer support the claim that certain neurons in the antennae of fruit flies are repelled by DEET, the active ingredient in many insect repellents. The last author told us some of the paper’s results are not in doubt; nevertheless, he added, the paper would not have been published in Nature without the key conclusion, so he and most of his co-authors have pulled the paper in its entirety.

Alongside the retraction, the journal has also published a Brief Communications Arising article by scientists who were unable to reproduce the paper’s findings.

Here’s the retraction notice, published today:
Continue reading Authors pull Nature paper about DEET and flies