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A shadow was cast on a bone researcher’s work. What are journals doing about his papers?

Last year, a researcher cast doubt on a bone scientist’s clinical trials, suggesting some of the findings may not be legitimate. So what’s happened since?

Since 2015, journals have retracted 14 papers by bone researcher Yoshihiro Sato, based at Mitate Hospital in Japan, for issues ranging from self-plagiarism, to problems with data, to including co-authors without their consent. (We covered the latest two retractions this week.) Last year’s analysis identified patterns in more than 30 of Sato’s clinical trials that suggest systematic problems with the results. (Sato has defended his research.)

With doubts cast on Sato’s body of work, we contacted the journals that have published his papers involving human trials, to see if any taken another look at Sato’s work; several responded. While most believe there is little reason to take further action at this time, some told us they are investigating.
Continue reading A shadow was cast on a bone researcher’s work. What are journals doing about his papers?

Harvard diabetes researcher retracts third paper

A prominent diabetes researcher based at Harvard Medical School has retracted a third paper, citing manipulation of multiple figures.

Late last year, Carl Ronald Kahn—also chief academic officer at Joslin Diabetes Center—retracted two papers for similar reasons. In November, Kahn pulled a 2005 paper from The Journal of Clinical Investigation (JCI) and a month later, he retracted a 2003 paper from The Journal of Biological Chemistry (JBC), both times citing duplications that the authors said were introduced while assembling the figures.

Last month, Kahn retracted his third paper, also published in JBC in 2003, because the authors omitted data when constructing the images. Still, the authors remain confident in their findings, given that data from other labs “have confirmed and extended the conclusions of the manuscript.”

Here’s the retraction notice: Continue reading Harvard diabetes researcher retracts third paper

“Existence and motive to retaliate:” Judge hands victory to whistleblower scientist

A Michigan researcher whose accusations of misconduct against his former employers led to years of legal battles has won a judge’s ruling that could earn him one of his jobs back.

Over the past few years, Christian Kreipke has been embroiled in legal battles with the Detroit VA Medical Center and Wayne State University, where he held a dual appointment. In 2010, Kreipke accused Wayne State of misusing federal funds — then was fired in 2012 when the university brought its own case of research misconduct against him. In 2013, the VA followed suit. In 2014, Kreipke lost a whistleblower lawsuit against the university. As a result of the Wayne State investigation, journals have retracted five of his papers, some as recently as last month.

In March, a judge ordered the Department of Veterans Affairs to reinstate Kreipke’s position, among other requests.  Continue reading “Existence and motive to retaliate:” Judge hands victory to whistleblower scientist

Plant biologist earns string of retractions, bringing total to 9

A pair of plant biologists has lost a string of papers over concerns about image manipulation. One author has added eight new retractions to his CV; the other has added five.

Last summer, a journal retracted another paper by the pair, also citing suspicions of image manipulation. The latest batch of retractions — issued by seven different journals — includes some papers that have been questioned on PubPeer.

Dibyendu Talukdar, listed at the University of Calcutta in West Bengal, India, is the sole author on three retracted papers. He shares five new retractions with Tulika Talukdar listed at the University of North Bengal. That brings their totals to nine and six, respectively. (We’re not sure if the Drs. Talukdar are related).

We’ll start with the papers they share: Continue reading Plant biologist earns string of retractions, bringing total to 9

Chemist wins injunction against university trying to revoke her degree

A scientist has won an injunction against the University of Texas at Austin, which was deciding whether or not to revoke her PhD.

We’ve been covering the case of Suvi Orr, a chemist now based at Pfizer who earned a PhD in 2008, for a few years. During that time, UT has tried to revoke her degree twice, after the paper that made up part of her dissertation was retracted in 2012 — for allegedly containing falsified data, according to the school. The university revoked her degree in 2014, then reinstated it after she sued.

Last year, the school tried to revoke it again, prompting Orr to sue for a second time — and ask for more than $95,000 in legal fees and expenses.

In a decision released April 20, a Texas Court of Appeals has upheld Orr’s request for an injunction against UT, preventing it from deciding whether to revoke her degree. Specifically, Orr asked that UT not be allowed to make a decision until the court has weighed in on a separate appeal, in which Orr argues the university doesn’t have the right to revoke her degree.

According to her lawyer, David Sergi:

Continue reading Chemist wins injunction against university trying to revoke her degree

“Ethical ambiguity:” When scientific misconduct isn’t black and white

David Johnson
Elaine Howard Ecklund

Some types of misconduct are obvious – most researchers would agree cooking data and plagiarizing someone’s work are clear no-nos. But what about overhyping your findings? Using funding allocated to an unrelated project, if it keeps a promising young student afloat? On these so-called “gray” areas of research behavior, people aren’t so clear what to do. A few years ago, David R. Johnson at the University of Nevada Reno and Elaine Howard Ecklund at Rice University interviewed hundreds of physicists; their conclusions appeared recently in Science and Engineering Ethics (and online in 2015).

Retraction Watch: Your paper discusses “ethical ambiguity” – what does that mean? Can you provide examples of such behavior?

Continue reading “Ethical ambiguity:” When scientific misconduct isn’t black and white

“Think of the unthinkable:” JAMA retraction prompts author to urge others to share data

A few months ago, a researcher told Evelien Oostdijk there might be a problem with a 2014 JAMA study she had co-authored.

The study had compared two methods of preventing infection in the intensive care unit (ICU). But a separate analysis had produced different results.

Oostdijk, from the University Medical Center Utrecht in The Netherlands, immediately got to work to try to figure out what was going on. And she soon discovered the problem: The coding for the two interventions had been reversed at one of the 16 ICUs. This switch had “a major impact on the study outcome,” last author Marc Bonten, also from the University Medical Center Utrecht, wrote in a blog post about the experience yesterday, because it occurred at “one of the largest participating ICUs.”

When Oostdijk and a researcher not involved in the study analyzed the data again, they discovered a notable difference between the revised and original findings: The new analysis revealed that one of the interventions had a small but significant survival benefit over the other.

Oostdijk and Bonten, who supervised the re-analysis, notified their colleagues of the revised study outcomes and contacted the journal requesting a retraction and replacement, which was published yesterday in JAMA.

According to the notice of retraction and replacement:

Continue reading “Think of the unthinkable:” JAMA retraction prompts author to urge others to share data

Journal flags paper about GMO foods over concerns about figures

A journal has flagged a paper by a researcher who has questioned the safety of genetically modified organisms, after receiving concerns that there were issues with some images.

In the 2006 paper, researchers led by Federico Infascelli, an animal nutrition researcher at the University of Naples, tested the blood of rabbits fed genetically modified soybeans. Starting in November 2015, however, the journal animal fielded concerns that gels appeared manipulated, and a figure legend differed from that in a thesis associated with the research.

This isn’t the first notice issued for Infascelli’s controversial work, which has been under scrutiny in recent years, including by Italian senator and biologist Elena Cattaneo. Last year, he was formally reprimanded by the University of Naples for including manipulated data in three papers.

Although the University of Naples concluded the image manipulations were “not a breach of scientific integrity,” the journal has issued a lengthy expression of concern about the paper:

Continue reading Journal flags paper about GMO foods over concerns about figures

Fraud by bone researcher takes down two meta-analyses, a clinical trial, and review

The troubles continue for a bone researcher, who’s lost multiple papers in recent months due to problems ranging from data issues to including authors without their consent.

Now, journals have retracted two more papers by Yoshihiro Sato. And in a sign of the downstream effects that fraud can have, another journal has retracted two meta-analyses by other authors that cited his work.

Earlier this month, the journal Current Medical Research and Opinion retracted the two meta-analyses because they were based on recently retracted papers by Sato, affiliated with Mitate Hospital. The two new retractions of Sato’s papers are a review and a randomized controlled trial.

Sato was not an author on the meta-analyses published in 2008 and 2011; he was, however, first and lead author on all the retracted papers referenced in the notices. The notices state that the trio of authors on the meta-analyses:

Continue reading Fraud by bone researcher takes down two meta-analyses, a clinical trial, and review

Prominent physicist loses four more papers for duplication

A leading physicist in India has lost four more papers for duplication, after colleagues lodged a complaint against him.

According to the most recent retraction notices, issued by Applied Surface Science, the four papers duplicated several figures and portions of text from the authors’ previous works. Although the notices do not single out a responsible party, last year the Mumbai Mirror reported that first and corresponding Naba K. Sahoo had been accused of duplication by colleagues at the Bhabha Atomic Research Centre (BARC), part of Indian government’s Department of Atomic Energy.

(In a bizarre twist, Sahoo also made the news recently for getting into a fist fight with another BARC scientist.)

Sahoo received two retractions last year for duplication, sometimes inelegantly referred to as “self-plagiarism.” All six of his retractions affect papers published by Applied Surface Science between 2005 and 2007.

The first retraction notice explains that a 2006 paper lifted portions of text from an earlier paper by Sahoo: Continue reading Prominent physicist loses four more papers for duplication