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Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘image manipulation’ Category

Image manipulation forces retraction of hepatitis C paper

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ljii20.v032.i04.coverA group of researchers from Egypt has lost their 2013 article on hepatitis C in the Journal of Immunoassay and Immunochemistry for fudging their figures.

The article was titled “In vitro neutralization of HCV by goat antibodies against peptides encompassing regions downstream of HVR-1 of E2 glycoprotein.” According to the abstract: Read the rest of this entry »

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A PNAS expression of concern appears — and so does its revealing backstory

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pnas 1113When retraction notices and expressions of concern appear, particularly those that are opaque, we try our best to find out what’s behind them, whether it’s better explanations or the steps that led to moves. Today, we have one story in which we’ve been able to learn a lot more than usual.

In April, Bas van Steensel, Wendy Bickmore, Thomas Cremer, and Kerstin Bystricky sent a letter to about 80 leading labs in nuclear organization and steroid receptor biology. It began (we’ve added some relevant links): Read the rest of this entry »

Written by Ivan Oransky

September 17, 2014 at 9:30 am

Scientist in Ireland notches two mysterious retractions and a correction

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Sinead Miggin, via NUIM

Sinead Miggin, via NUIM

Sinead Miggin, a biologist at the National University of Ireland Maynooth, has withdrawn two papers from the Journal of Biological Chemistry (JBC) and has corrected another paper, in the Proceedings of the National Academy of Sciences (PNAS).

Here’s the opaque JBC notice for “14-3-3ϵ and 14-3-3σ inhibit Toll-like receptor (TLR)-mediated proinflammatory cytokine induction,” a paper first published in November 2012: Read the rest of this entry »

Fudged figures sink breast cancer paper

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oncogeneA prestigious cancer journal has pulled an article over “concerns” regarding some of the figures, which PubPeer commenters had tagged as suspect.

A few weeks after the paper was published on June 9, comments on PubPeer began accumulating. Commenters called out both potentially manipulated and repeated images. The exact timeline is not clear, because Oncogene does not list a date on the retraction notice, but by August 29 the paper had been retracted.

Here’s the notice for “IL-6 secreted by cancer-associated fibroblasts induces tamoxifen resistance in luminal breast cancer,” by researchers at Shanghai Jiaotong University School of Medicine and Ruijin Hospital, both in Shanghai, China, and the University of Michigan: Read the rest of this entry »

Diabetes researcher Cory Toth now up to nine retractions

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neuroscienceCory Toth is up to nine retractions.

The University of Calgary researcher who told us earlier this year that he “will not be publishing in the world of science in the future” has retracted two papers from Neuroscience.

Here’s the notice for “Local erythropoietin signaling enhances regeneration in peripheral axons:” Read the rest of this entry »

Written by Ivan Oransky

September 2, 2014 at 9:30 am

Danish committee rejects much of Klarlund Pedersen’s appeal of misconduct findings

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Klarlund Pedersen

Klarlund Pedersen

The Danish Committees on Scientific Dishonesty (DCSD, Danish acronym UVVU) has partially reversed a December 2013 finding of misconduct against a scientist in Denmark, but has upheld most of its ruling.

Bente Klarlund Pedersen, whose case was tied up with that of Milena Penkowa, another scientist in Denmark found guilty of misconduct, committed misconduct in four of 12 articles examined, not six, the DCSD said in a statement last week.

Here’s the English summary (the DCSD does not name scientists under investigation publicly, but Pedersen has confirmed this is about her): Read the rest of this entry »

Written by Ivan Oransky

September 1, 2014 at 8:56 am

Second retraction appears for former University of Florida ob-gyn subject to ORI probe

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University of Florida

Chegini, via University of Florida

Nasser Chegini, an ob-gyn formerly on the faculty at the University of Florida who has been the subject of an Office of Research Integrity (ORI) inquiry for several years, has a second retraction.

Chegini is suspected of having used bogus data in some of his work — research backed in part by some $4 million in federal funding.

The new retraction involves a 2008 paper in Reproductive Sciences on which Chegini was senior author. Here’s the notice: Read the rest of this entry »

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