Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘corrections’ Category

PLoS ONE mega-correction, but no retraction, for researcher who sued diabetes journal

with 19 comments

Mario Saad, via

Mario Saad, via

PLoS ONE has just issued a 12-figure correction on a paper by Mario A. Saad, who sued the American Diabetes Association unsuccessfully in an attempt to prevent it from retracting four papers in its flagship journal Diabetes.

The corrections include taking out Western blots copied from another Saad paper, as well as several figures where the bands were “misplaced.”

PubPeer commenters suggest this may not be enough, calling seven additional figures into question. Read the rest of this entry »

Written by Cat Ferguson

March 4th, 2015 at 9:30 am

Several chem journals neutralize papers from Brazil group over figure fraud

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quimica novaSeveral journals have retracted or corrected papers from a group at State University of Maringá in Brazil over what one chemistry journal calls “fraudulent use” of figures previously published by the authors.

Química Nova, which is retracting a 2013 paper, issued a notice that taps an additional eight articles with Angelica Lazarin as the corresponding author that reused figures. Specifically, the papers included images “where same trace on the figure was assigned to different conditions and/or compounds.”

A number of the papers mentioned in the Química Nova notice were co-authored by Claudio Airoldi, whose group retracted 11 papers in 2011 following concerns over fraudulent nuclear magnetic resonance images.

Read the rest of this entry »

Bad image prompts correction of Harvard-Brigham stem cell paper by Anversa

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circresA group of Harvard stem cell researchers who already have one retraction and an expression of concern now have a correction. This one’s in Circulation Research, and it involves an image that previously had been flagged as suspicious in our comments.

The group is led by Piero Anversa, who as we reported last year is one of two researchers suing Harvard because the institution’s investigation into their work

has cost them millions in a forfeited sale of their company, and job offers.

Read the rest of this entry »

New favorite plagiarism euphemism: “Inadvertently copied text”

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biodata miningPlagiarism earned genomics researchers an erratum, not a retraction, in BioMed Central journal BioData Mining.

We keep a list of best euphemisms for plagiarism, and this one is right up there.

Here’s the notice for “An iteration normalization and test method for differential expression analysis of RNA-seq data”: Read the rest of this entry »

Authors get away with throwing quotation marks around plagiarized passages. Again.

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PNAS jan15Back in November 2013, we wrote about a correction in PNAS about a May 2012 paper by a group from Toronto and Mount Sinai in New York who, as we said at the time

had been rather too liberal in their use of text from a previously published paper by another researcher — what we might call plagiarism, in a less charitable mood.

Read the rest of this entry »

Written by amarcus41

January 21st, 2015 at 11:30 am

Stem cell researcher Jacob Hanna responds to criticism

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Jacob Hanna

Jacob Hanna

Over the past few months, there has been a great deal of criticism of the work of stem cell researcher Jacob Hanna, especially on PubPeer.

Now, Hanna has responded in the comments of the PubPeer entries for a number of papers. He has also posted a number of PDFs, including his PhD thesis, and correspondence with scientists who have been critical of his work.

He also wrote a response to a criticism published on bioRxIV, a non-peer reviewed repository of biology pre-prints.

One of Hanna’s comments on PubPeer is a summary of the issues with his Blood paper on PubPeer, blaming the figure errors on “medical trainees” who did the word while he was away at Mount Sinai. Here’s his explanationRead the rest of this entry »

Written by Cat Ferguson

January 21st, 2015 at 9:30 am

Prominent geneticist nets retraction, two corrections, and a lot of questions

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David Latchman, Birkbeck

David Latchman

A team led by David Latchman, a geneticist and administrator at University College London, has notched a mysterious retraction in the Journal of Biological Chemistry, and has had 25 more papers questioned on PubPeer.

The JBC notice for “Antiapoptotic activity of the free caspase recruitment domain of procaspase-9: A novel endogenous rescue pathway in cell death” is as useless as they come, a regular occurrence for the journal: Read the rest of this entry »

Leading diabetes researcher corrects paper as more than a dozen studies are questioned on PubPeer

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Kathrin Maedler

Prominent German diabetes researcher Kathrin Maedler has issued corrections on two papers, and told Retraction Watch she is in the process of defending the data on others.

14 of her papers have been critiqued by PubPeer commenters. The commentary, which spans from her graduate work in 2002 to a 2014 publication in Nature Medicine, includes questions about image manipulation and self-plagiarism.

Laborjournal’s blog (we have a column in their English-language publicationfirst flagged these suspicions in July 2014, after being approached by pseudonymous Clare Francis.

Here’s a comparison between figures in Maedler’s 2009 PLoS One paper, “Deletion of the Mitochondrial Flavoprotein Apoptosis Inducing Factor (AIF) Induces β-Cell Apoptosis and Impairs β-Cell Mass,” and one she co-authored in 2006 in Diabetes, “Low concentration of interleukin-1beta induces FLICE-inhibitory protein-mediated beta-cell proliferation in human pancreatic islets,” via PubPeerRead the rest of this entry »

Written by Cat Ferguson

January 12th, 2015 at 11:30 am

Award-winning plant researcher correcting several papers critiqued on PubPeer

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Olivier Voinnet

Olivier Voinnet

Olivier Voinnet, a researcher at ETH in Zurich and the winner of the 2013 Rössler Prize, is correcting a number of papers following critiques of more than a dozen of his studies on PubPeer.

The work appears in journals including Cell and PNAS. Voinnet’s co-author on several of the papers, David Baulcombe, who is also highly decorated, left this comment on relevant PubPeer entries: Read the rest of this entry »

Written by Ivan Oransky

January 9th, 2015 at 11:28 am

Posted in cell,corrections

“Incorrect data” kills apoptosis paper

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Screen Shot 2014-12-19 at 5.52.16 PMFrontiers in Pharmacology has retracted a paper on baicalin, an antioxidant sold in health food stores, because it had both “incorrect data and invalid statistical analyses.”

A comment on PubPeer notes that one of the figures (see image to the right) contains two similar-looking flow cytometry images labeled with different values, which could be what the retraction is hinting at.

Here’s the notice for “Baicalin induced dendritic cell apoptosis in vitro”: Read the rest of this entry »