Archive for the ‘cell biology’ Category
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:
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:
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: Read the rest of this entry »
A 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:
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:
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.
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.
Diabetes 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: Read the rest of this entry »
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:
An erstwhile cell biologist has retracted five papers published in the Journal of Cell Science (JCS), all of which had been flagged in a recent investigation by the U.S. Office of Research Integrity (ORI).
The probe identified eight papers co-authored by Pastorino, six of which had already received expressions of concern (EOC) — including all of the newly retracted JCS papers. Nataly Shulga is a co-author on all eight papers.
Last week, we reported on the first of the expected retractions of the flagged papers in the Journal of Biological Chemistry.