Category: clinical study retractions

Second paper about major blood pressure drug trial in Japan to be retracted

hr_cimageA second paper about a major randomized trial in Japanese patients with heart disease is being retracted, after an investigation reportedly found multiple problems with the paper.

As predicted by Pharma Japan, Hypertension Research is retracting a 2011 paper, already the subject of two errata. Although a spokesperson said she couldn’t say why the paper was being retracted, as the notice was still in production, editor Toshihiko Ishimitsu told us: Continue reading Second paper about major blood pressure drug trial in Japan to be retracted

Child psychiatrist flagged for misconduct loses two more papers

Mani PavuluriA child psychiatrist has lost two papers after an institutional investigation concluded that she intentionally misrepresented children’s medication history in her research.

In November 2015, we reported on a retraction for Mani Pavuluri in the Journal of Psychiatry & Neuroscience following a probe at the University of Illinois at Chicago, her institution, which concluded that there was a “preponderance of evidence” that Pavuluri had committed misconduct. 

After an “unanticipated event” took place during a study, three studies by Pavuluri were halted and a letter was sent out to 350 research subjects, informing them of errors in the work. At the time, the Illinois spokesperson noted that Pavuluri — who, according to her LinkedIn page, is a Distinguished Fellow of the American Academy of Child and Adolescent Psychiatry — was also asked to retract two 2013 studies in the Journal of Affective Disorders. Those papers have now been retracted, noting that Pavuluri “intentionally and knowingly” misrepresented children’s medication history.

Here’s the retraction notice for “Deficits in emotion recognition in pediatric bipolar disorder: The mediating effects of irritability:” Continue reading Child psychiatrist flagged for misconduct loses two more papers

Oh, well — “love hormone” doesn’t reduce psychiatric symptoms, say researchers in request to retract

psychiatry-research

It turns out, snorting the so-called “love hormone” may not help reduce psychiatric symptoms such as depression and anxiety.

At least, that’s the conclusion the authors of a 2015 meta-analysis, which initially found intranasal doses of oxytocin could reduce psychiatric symptoms, have now reached. After a pair of graduate students pointed out flaws in the paper, the authors realized they’d made some significant errors, and oxytocin shows no more benefit than placebo.

First author Stefan Hofmann from Boston University in Massachusetts explains further in a lengthy letter he sent to Psychiatry Research, which he passed on to us: Continue reading Oh, well — “love hormone” doesn’t reduce psychiatric symptoms, say researchers in request to retract

Oops — journal retracted the wrong article

journal-of-human-reproductive-sciences

Sometimes you have the right guy, but charge him with the wrong crime — like nabbing someone for not using a turn signal after he just ran through a red light.

A reproductive sciences journal has admitted to mistakenly retracting the wrong article last year — and is now pulling the previously issued retraction notice, along with retracting a different paper by the same author.

K. P. Suresh, author of both studies (the previously pulled one and the newly retracted one) from the National Institute of Veterinary Epidemiology and Disease Informatics in Bengaluru, Karnataka, India, appealed the journal’s 2015 decision to retract his previous paper. As we reported at the time, Suresh argued that his 2012 paper was “entirely different” from the study it is said to have plagiarized from. It turns out, he may have been right, because now the journal has pulled a different paper of his, published in 2011.

According to one of the notices, the Journal of Human Reproductive Sciences previously retracted the incorrect paper due to “technical errors.”

In both cases, the journal cited the reason for retraction as “duplicity of text.”

The journal has now issued another retraction notice for the previously published notice, which reads: Continue reading Oops — journal retracted the wrong article

You cited which paper?? Reference errors are more common than many realize

Marilyn Oermann
Marilyn Oermann

We all make mistakes – but when it comes to the scientific literature, too many authors are making critical mistakes in their list of references, making it difficult for readers to retrieve a cited paper. We spoke with Marilyn Oermann, the Thelma M. Ingles Professor of Nursing at the Duke University School of Nursing, who has studied this problem extensively in the nursing literature.

Retraction Watch: You’ve published multiple papers looking at reference problems in nursing research. What are the main types of “reference problems” that usually occur? Continue reading You cited which paper?? Reference errors are more common than many realize

German university recommends that six papers be retracted following probe

200px-siegel_uni-koeln_grau-svgThe University of Cologne has conducted an investigation into the research of Tina Wenz, and determined that six papers should be pulled due to scientific misconduct.

In a release issued last week (as first reported by Leonid Schneider), the university lists six papers that “present scientific misconduct,” according to our Google Translate.

One of the six papers was already retracted last year by Cell Metabolism, which cited reused northern and western blot band images in two figures.

The other six papers are: Continue reading German university recommends that six papers be retracted following probe

Reviewers may rate papers differently when blinded to authors’ identities, new study says

Kanu Okike
Kanu Okike

Although previous research has suggested peer reviewers are not influenced by knowing the authors’ identity and affiliation, a new Research Letter published today in JAMA suggests otherwise. In “Single-blind vs Double-blind Peer Review in the Setting of Author Prestige,” Kanu Okike at Kaiser Moanalua Medical Center in Hawaii and his colleagues created a fake manuscript submitted to Clinical Orthopaedics and Related Research (CORR), which described a prospective study about communication and safety during surgery, and included five “subtle errors.” Sixty-two experts reviewed the paper under the typical “single-blind” system, where they are told the authors’ identities and affiliations, but remain anonymous to the authors. Fifty-seven reviewers vetted the same paper under the “double-blind” system, in which they did not know who co-authored the research. We spoke with Okike about some of his unexpected results.

Retraction Watch: You found that reviewers were more likely to accept papers when they could see they were written by well-known scientists at prestigious institutions. But the difference was relatively small. Did anything about this surprise you? Continue reading Reviewers may rate papers differently when blinded to authors’ identities, new study says

Error in one line of code sinks cancer study

journl-of-clinical-oncologyAuthors of a 2016 cancer paper have retracted it after finding an error in one line of code in the program used to calculate some of the results.

Sarah Darby, last author of the now-retracted paper from the University of Oxford, UK, told Retraction Watch that the mistake was made by a doctoral student. When the error was realized, Darby said, she contacted the Journal of Clinical Oncology (JCO), explained the issue, and asked whether they would prefer a retraction or a correction. JCO wanted a retraction, and she complied.

The journal allowed the authors to publish a correspondence article outlining their new results.

Here’s the lengthy retraction notice, published online last month: Continue reading Error in one line of code sinks cancer study

BMJ won’t retract controversial dietary guidelines article, says author

bmjThe BMJ is not going to retract a 2015 article criticizing the expert report underlying the U.S. dietary guidelines, despite heavy backlash from readers, according to the author of the article.

As Politico reported today, the publication told journalist Nina Teicholz it wouldn’t retract the article, first published one year ago today.

Teicholz confirmed to us the journal emailed her in April to say the article would not be retracted: Continue reading BMJ won’t retract controversial dietary guidelines article, says author

Authors retract two papers on shock therapy, citing language barriers

the-journal-of-ectAn electroconvulsive therapy (ECT) journal has retracted two 2016 papers after uncovering problems in the data analyses, which the author says were due to language barriers.

Interestingly, two authors of the newly retracted papers — Yu-Tao Xiang from the University of Macau in China and Gabor Ungvari from the University of Western Australia — also recently co-authored another paper on an entirely different topic that has received a lengthy correction. That paper — on the use of organs from executed prisoners in China — raised controversy for allegedly reporting a “sanitized” account of the practice. The correction notice, in the Journal of Medical Ethics, was accompanied by a critics’ rebuttal to the paper.

According to Xiang, the newly retracted papers in The Journal of ECT — which examined the efficacy of ECT in treating schizophrenia — were pulled due to “genuine errors” resulting from differences in language. All the authors agree with the retraction, Xiang noted. 

Xiang told us: Continue reading Authors retract two papers on shock therapy, citing language barriers