Category: cell biology

“Clumsy but genuine errors” prompt PNAS correction

Some accidental mistakes have led researchers to issue a long correction to a 2016 PNAS paper.

According to the notice, when the cell biology paper’s corresponding authors became aware of duplications in two images, they immediately notified the journal and the University of Nottingham. After examining the original data archives, the university found that the authors generated the correct images, but the person who prepared the figures selected the wrong images from the data archive.

According to John Atherton, faculty pro-vice-chancellor for the Faculty of Medicine and Health Sciences at the University of Nottingham in the UK, who oversaw the investigation: Continue reading “Clumsy but genuine errors” prompt PNAS correction

Former postdoc admitted to fraud in cell bio paper, lead author says

A researcher in Switzerland has retracted her 2015 paper in the Journal of Cell Biology, saying the first author — her former postdoc — admitted to fabricating multiple aspects of the paper.

After Sophie Martin of the University of Lausanne couldn’t reproduce the data from another manuscript she was preparing to submit, she contacted her former student, Pranav Ullal, who admitted he had fabricated the data, along with two figures in the JCB paper.

A spokesperson for the University of Lausanne told us that Ullal left Switzerland after his contract was over, and is now in India.

Martin told us the whole experience has been upsetting:

Continue reading Former postdoc admitted to fraud in cell bio paper, lead author says

Journal pulls paper with missing data, citing inquiry and legal proceedings

A journal has retracted a 2012 paper after the last author was unable to provide material to support the results presented in multiple figures.

The lack of supporting data came out during “an internal inquiry and subsequent legal proceedings,” according to the notice, issued by Cell Cycle.

The last author on the paper is Susana Gonzalez, who was dismissed from her position at the National Center for Cardiovascular Research (CNIC) in Spain last year.

Here’s the full notice:

Continue reading Journal pulls paper with missing data, citing inquiry and legal proceedings

EMBO journals retract figures in two papers missing source data

Journals published by the European Molecular Biology Organization (EMBO) have retracted a handful of figures in two papers with the same last and first authors.

After some figures in the 2005 and 2007 papers were flagged on PubPeer and the authors couldn’t provide the original data, the journals decided to retract parts of the papers, since other data supported the remaining conclusions, according to the Head of Scientific Publications at EMBO.

The partial retractions are labeled as corrigenda by the journals. Earlier this year, the U.S. National Library of Medicine (NLM) announced it would be classifying partial retractions as errata, noting they had been used so rarely by journals.

Both lengthy corrigenda (also reported by Leonid Schneider) contain statements from the authors and the editors. The statements from the authors provide detailed explanations about the problems with the figures in question; here’s an excerpt from the editor’s statement in The EMBO Journal corrigendum: Continue reading EMBO journals retract figures in two papers missing source data

Nature Cell Bio paper may be headed for retraction

ncbA Nature Cell Biology paper published only a few months ago by prominent researchers in Taiwan has sparked a heated discussion on PubPeer, which now includes a comment allegedly from an author saying they have requested its retraction.

Although a representative of the journal wouldn’t confirm to us that the authors had requested a retraction, the comment on PubPeer says the paper contains several figures that were “inappropriately manipulated” by the first author.

Here’s the full comment on PubPeer, tagged as coming from one of the authors of the paper:

Continue reading Nature Cell Bio paper may be headed for retraction

Gov’t researchers lose three papers for data doctoring

Eukaryotic Cell A researcher in New Mexico has retracted three papers tainted by fraud.

Lead author Samuel Lee, who works at the New Mexico Veterans Affairs (VA) Healthcare System and the University of New Mexico (UNM), requested Eukaryotic Cell retract two papers after identifying multiple instances of fabricated or falsified data. He requested the retraction of a review article based on those papers as well.

In addition, the research is subject to an investigation, Ellie Ghatineh, a production editor at the journal, told us:

Continue reading Gov’t researchers lose three papers for data doctoring

Former professor shoots dean who fired him for misconduct

MountSinai_IcahnSchool_LogoA former assistant professor at the Mount Sinai School of Medicine in New York fired a shotgun yesterday at two men– including the school’s dean, who had fired him six years ago.

The New York Times reports that Hengjun Chao was taken into custody on charges of attempted murder, after his shots hit Mount Sinai dean Dennis Charney and another man outside of a suburban New York deli. Both men were treated at a local hospital for non-life-threatening injuries.

Chao was fired from Mount Sinai in 2010 after an investigating committee found that he Continue reading Former professor shoots dean who fired him for misconduct

Authors retract study with contaminated cell lines

MBoCAuthors of a molecular biology paper have pulled it after realizing that their cell lines were contaminated.

According to the notice in Molecular Biology of the Cell (MBoC), the contamination occurred by “unknown means” in the senior authors’ laboratory, who told us the mistake was a difficult one to catch. He added that they discovered the problem after other researchers published conflicting results.

He also noted that the contaminated cell lines were not used for experiments in any other papers.

Here’s the retraction notice, issued on August 1: Continue reading Authors retract study with contaminated cell lines

Journal flags two papers by prominent diabetes researcher, more questioned on PubPeer

DiabetesDiabetes has issued two expressions of concern (EOCs) for papers co-authored by leading diabetes researcher Kathrin Maedler, adding to her previous count of one retraction and three corrections.

Both papers were questioned on PubPeer, alongside several others co-authored by Maedler, who is based at the University of Bremen in Germany. As we previously reported, PubPeer comments have led to one retraction for Maedler in the Journal of Biological Chemistry (JBC), and corrections in various other journals.

One of those corrections has now earned an EOC from Diabetes, which also extends to the original paper. Here are the notices, which asks the University of Bremen to investigate further:  Continue reading Journal flags two papers by prominent diabetes researcher, more questioned on PubPeer

Biologist with five-year funding ban earns 7th and 8th retractions

Biology OpenA biologist in New Jersey has retracted two more papers, bringing his total to eight retractions, following a finding by the U.S. Office of Research Integrity (ORI).

The analysis of the work of John Pastorino, previously a cell biologist at Rowan University, in Glassboro, concluded that he had doctored more than 40 images, resulting in a five-year funding ban.

The report flagged eight published papers (and an unpublished one), six of which had already received expressions of concern (EOCs). Nataly Shulga was a co-author on all eight papers. With these two new retractions in Biology Open and Biochimica et Biophysica Acta (BBA) – Bioenergetics, all of the flagged papers have now been retracted.

Here’s the retraction notice for the Biology Open paper, issued July 15:

Continue reading Biologist with five-year funding ban earns 7th and 8th retractions