Category: misconduct investigations

NUS: Melendez committed “serious scientific misconduct,” but don’t expect to get any details

alirio_melendezAlirio Melendez, a former National University of Singapore immunologist whose story we’ve been following here since a retraction in September of last year, committed misconduct on an “unprecedented” scale, according to the university, involving more than 20 papers.

Nature’s Richard van Noorden has the scoop:

After a 19-month investigation, the National University of Singapore (NUS) today says that it has determined that one of its former scientists, the immunologist Alirio Melendez, has committed “serious scientific misconduct”.  The university found fabrication, falsification or plagiarism associated with 21 papers, and no evidence indicating that other co-authors were involved in the misconduct, it says.

Melendez has retracted five papers so far, as we’ve reported, but NUS wouldn’t give the whole list. They tell Nature: Continue reading NUS: Melendez committed “serious scientific misconduct,” but don’t expect to get any details

Concern — in triplicate — arrives for Poldermans papers

Jacc1212coverThe Journal of the American College of Cardiology, or JACC, has issued expressions of concern for three papers by Don Poldermans, the Dutch cardiologist who was fired earlier this year amid allegations of misconduct.

Cardiobrief’s Larry Husten had the story first.

The, um, heart of the matter is that neither the investigators at Erasmus Medical Center, Poldermans’ former institution, nor the JACC editors, can say whether the researchers conduct rose to the level of fabricating data. As the Notice of Concern states: Continue reading Concern — in triplicate — arrives for Poldermans papers

Dental papers retracted after investigations find “issue with respect to misconduct”

jomfpSometimes, retraction notices offer tantalizing clues, but no real information. Take the case of a paper called “Florid osseous dysplasia,” which was published last year in Journal of Oral and Maxillofacial Pathology by a group at Mumbai’s Nair Hospital Dental College and retracted recently.

Here’s the notice, which is suggestive but doesn’t say much: Continue reading Dental papers retracted after investigations find “issue with respect to misconduct”

Funding agency sanctions Bulfone-Paus and former postdoc

Silvia Bulfone-Paus
Silvia Bulfone-Paus

Retraction Watch readers may recall the case of Silvia Bulfone-Paus, a researcher at Germany’s Research Center Borstel who was a frequent subject of posts in the early days of this blog. Bulfone-Paus has had to retract 13 papers amid investigations into allegations of image manipulation.

To briefly recap: In May 2010, several months after concerns had first been raised, Borstel let the DFG (German Research Foundation) know about the allegations, because they had funded the work. A November 2010 report from Borstel said that the allegations had merit, blaming two of Bulfone-Paus’s postdocs but criticizing how she supervised them. As the DFG notes in a summary of its findings on the case, posted late last week: Continue reading Funding agency sanctions Bulfone-Paus and former postdoc

Two patch-clamping retractions in PNAS and the JCI after first author admits image manipulation

jci1212A group of cardiology researchers formerly of the University of Cologne has retracted two papers, after investigations into allegations of misconduct led to an admission of guilt by one of the lab’s junior members.

Here’s the first retraction, for “Connexin 43 acts as a cytoprotective mediator of signal transduction by stimulating mitochondrial KATP channels in mouse cardiomyocytes,” published last week in the Journal of Clinical Investigation: Continue reading Two patch-clamping retractions in PNAS and the JCI after first author admits image manipulation

Going Dutch: Stapel inquiry eyes credulous colleagues, institution, prompts national soul search

Dutch investigators have released their final report into the case of Diederik Stapel, the social scientist and erstwhile faculty member at Tilburg University who fabricated data in 55 articles and book chapters. So far, 31 of Stapel’s published papers have been retracted — three others have expressions of concern — although more might follow.

In addition, 10 dissertations by students Stapel supervised were found to contain fraudulent data, although those students were cleared of any wrongdoing in the inquiry.

The report — and we’re going by rough translations here — found that Stapel’s colleagues and administrators seemed to accept his results at face value. Meanwhile, his high profile at Tilburg insulated him against initial rumblings about problems with his data. As the Dutch paper NRC Handelsblad reported: Continue reading Going Dutch: Stapel inquiry eyes credulous colleagues, institution, prompts national soul search

Lemus, Stapel each rack up another retraction

The retraction counts keep mounting for two Retraction Watch frequent flyers.

First, Diederik Stapel’s 26th retraction, according to our count. Psychologist Stapel admitted to making up data in dozens of studies, and is also facing a criminal inquiry for misuse of funds.

Here’s the notice: Continue reading Lemus, Stapel each rack up another retraction

ORI investigating University of Florida ob-gyn researcher accused of misconduct

A prominent researcher at the University of Florida is under federal investigation for research misconduct and has lost at least one paper as a result of the fraud.

The researcher, Nasser Chegini, was a professor of obstetrics and gynecology at the U of Florida until about six months ago, when he retired, according to the chair’s office. Nasser has received at least $4 million in federal grant funding, according to the university.

The retracted paper, “MicroRNA 21: response to hormonal therapies and regulatory function in leiomyoma, transformed leiomyoma and leiomyosarcoma cells,” was published in 2010 by Molecular Human Reproduction. The authors were Qun Pan and Xiaoping Luo and Chegini.

As the notice explains: Continue reading ORI investigating University of Florida ob-gyn researcher accused of misconduct

Final report on cardiology researcher Poldermans confirms claims of misconduct

Erasmus Medical Center in the Netherlands has released the final report on Don Poldermans, finding that the institution’s once-star cardiology researcher committed misconduct.

As Larry Husten of CardioBrief reports, Erasmus MC’s investigation included that Poldermans — perhaps best known for his work on beta-blockers — has admitted to acts of misconduct but not to fraud.

That’s not merely a distinction without a difference. Continue reading Final report on cardiology researcher Poldermans confirms claims of misconduct

JAMA’s first-ever Expression of Concern appears for hip protector study

JAMA has issued its first-ever Expression of Concern over a 2007 study of hip protectors in the elderly that came under scrutiny from Federal regulators.

As the Boston Globe was first to report yesterday, the journal’s editor and executive deputy editor wrote in a notice published online: Continue reading JAMA’s first-ever Expression of Concern appears for hip protector study