Corrections (and one EoC) propagate for distinguished plant biologist, Olivier Voinnet

Olivier Voinnet
Olivier Voinnet

There may be some deeply rooted issues in the work of high-profile plant biologist Olivier Voinnet, biology department research director at ETH in Zurich. Corrections have continued to pile up months after his work was hit with a barrage of criticism on PubPeer. We’ve tracked a total of seven corrections over the past five months (not including the April retraction of a 2004 paper in The Plant Cell). One of the corrected papers also received an Expression of Concern this week.

Collectively, the corrected papers have accumulated more than 1200 citations.

In January, Voinnet said he planned to correct multiple papers, after receiving “an anonymous email.”

One of the recent corrections we found is for a 2003 article in The Plant Journal, “An enhanced transient expression system in plants based on suppression of gene silencing by the p19 protein of tomato bushy stunt virus,” which details using proteins from a tomato virus to help alter gene expression. The study has been cited 862 times, according to Thomson Scientific’s Web of Knowledge. Here’s the correction notice, posted June 8:

Continue reading Corrections (and one EoC) propagate for distinguished plant biologist, Olivier Voinnet

Two more retractions make four for bone researcher

JAnatBone anatomists have retracted two papers on primate jawbone structure from the Journal of Anatomy due to “errors in the validation protocol and data,” marking the fourth retraction for one of the authors.

Olga Panagiotopoulou retracted two other papers over the past year, all of which were due to a common methodological problem. As Panagiotopoulou — who completed the work in the UK, before joining the University of Queensland in Australia in 2013 —  explained to us in April,

Continue reading Two more retractions make four for bone researcher

Lost your data? Blame an earthquake

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A natural disaster is to blame for a retraction about lethal brain tumors. At least, that’s where the authors say the problem started: with a 2010 earthquake that caused a loss of “substantial data.”

The paper, “Superoxide-dependent uptake of vitamin C in human glioma cells,” looks at how the cells of lethal brain tumors interact with the vitamin commonly used to reduce side effects of therapies.

Post earthquake, someone digitally filled in a western blot analysis of proteins from a cell line and rat brains, as a “temporary solution.” And then the temporary solution made its way into the Journal of Neurochemistry.

Here’s the retraction note from the journal, including an image of the sneaky western blot:

Continue reading Lost your data? Blame an earthquake

Article on suicide in Egypt retracted for double publication

JForensicSci_ak9A 2012 article published in the Journal of Forensic Sciences is being retracted because of an “overlap with a previous publication by the same authors.”

The corresponding author, Heba Yassa, a lecturer at Assiut University in Egypt, readily explained in an email exchange that the mix-up was due to a miscommunication with the editor of another journal, which she believed was not going to publish the article. “I know accidentally that the editor…published the article.”

The article, which examined suicides in one of the largest provinces in Egypt between 2005 and 2009, found rates had gone up since 1987, and men tended to use more violent methods than women.

Here’s the retraction notice: Continue reading Article on suicide in Egypt retracted for double publication

Third structure slip-up for chemist in Korea yields retraction

Chem_ak3Authors of a 2010 Chemistry – A European Journal article have retracted it “due to the wrong assignment of structure” of catalysts.

The retraction is the third, by our count, for corresponding author Doo Ok Jang, a chemist at Yonsei University in Wonju. Jang authored one of the previously retracted papers with Sung Jun Kim and the other with Sang Yoon Kim. Both papers were also sunk by misassigned structures.

The current study, “Enantioselective Radical Addition to Ketimines: A Synthetic Route Towards α,α-Disubstituted α-Amino Acids,” is authored by all three chemists. Here’s the retraction notice:

Continue reading Third structure slip-up for chemist in Korea yields retraction

Urology researcher in Iran up to six retractions

safarinejadA urologist in Iran has lost three papers in BJU International, bringing his retraction count to a half-dozen.

In December 2013, we reported on three retractions by Mohammad Reza Safarinejad. None of those notices, about papers related to incontinence and erectile dysfunction, made the reasons for retraction very clear. After that post ran, Safarinejad told us that Hartmut Porst, former president of the European Society for Sexual Medicine, had raised questions about the data in a number of his papers. Porst confirmed that for us earlier this month.

All of the latest papers, about aspects of male sexual dysfunction, are being retracted due to “inappropriate” statistical analyses.

Here’s the notice for “Analysis of association between the 5-HTTLPR and STin2 polymorphisms in the serotonin-transporter gene and clinical response to a selective serotonin reuptake inhibitor (sertraline) in patients with premature ejaculation,” which has been cited 17 times, according to Thomson Scientific’s Web of Knowledge: Continue reading Urology researcher in Iran up to six retractions

Skeleton crew’s second paper broken over methodology issues; more retractions to appear

Olga Panagiotopoulou, via University of Queensland

Bone researcher Olga Panagiotopoulou of the University of Queensland has lost a second paper over “errors in the validation protocol and data.”

The retracted paper in the Journal of Biomechanics, about primate jaws, was subject to an expression of concern in May 2014 November 2013, one of two Panagiotopoulou’s group issued last year over methodological problems. The other paper was later retracted. According to Panagiotopoulou, there will be two more retractions forthcoming, both in the Journal of Anatomy. 

According John Hutchinson, last author of the other retracted paper, that withdrawal was the result of an investigation at his school, the Royal Veterinary College.

Panagiotopoulou emailed us with an explanation:

Continue reading Skeleton crew’s second paper broken over methodology issues; more retractions to appear

Molecular mixup burns chemistry paper

advanced synthesis and catalysisChemists at Lanzhou University in China did the right thing last month, retracting a paper in Advanced Synthesis & Catalysis because of issues with a reactant that could only be corrected by changing “all the text and quantities.”

When the scientists were adding what was labeled Reactant 1 to the mix, they believed it was α-ethoxycarbonyl-α-azido-N-phenylacetamides. Unfortunately, what they were actually using was a decomposed version of the molecule, which threw everything off.

Here’s the notice for “tert-Butyl Hydroperoxide and Tetrabutylammonium Iodide- Promoted Free Radical Cyclization of α-Azido-N-arylamides”: Continue reading Molecular mixup burns chemistry paper

Study by deceased award-winning cancer researcher retracted because some patients were “invented”

cancerA 2002 paper has been retracted by Cancer after some of the authors notified the journal that they hadn’t agreed to submit it — and an investigation found that a number of the patients described had been made up.

Here’s the notice for “Radioimmunotherapy of small-volume disease of metastatic colorectal cancer: results of a phase II trial with the iodine-131–labeled humanized anti–carcinoembryonic antigen antibody hMN-14:” Continue reading Study by deceased award-winning cancer researcher retracted because some patients were “invented”

Stats error has chilling effect on global warming paper

global change biologyIt turns out a 2014 paper that found a surprising pattern of plant migration in response to global warming was not so surprising after all — it’s been retracted by the authors due to a mistake in the statistical analysis.

Most studies on migrating populations have found that species around the globe move north to escape the rising temperatures. But the authors of the 2014 paper in Global Change Biology found the opposite — according to their analysis, many plant species in Western North America had been migrating south, toward warmer climates.

The lead author Melanie Harsch told Science in 2014 that the team had been suspicious of the analysis, and so ran it twice: Continue reading Stats error has chilling effect on global warming paper