Heart repair study retraction marks second for Mercer University researcher

BasicResCardio_ak12Authors of a study on cardiac repair after heart attack are retracting it from Basic Research in Cardiology because they used “the same samples… to represent two distinct groups on two occasions.”

We find the language of the retraction somewhat confusing, but to the best of our understanding it means that they compared apples to the exact same apples.

The study, published online in 2012, examined the mechanism behind the beneficial effects of a procedure called postconditioning in treating heart attacks. Here’s the retraction notice: Continue reading Heart repair study retraction marks second for Mercer University researcher

Weekend reads, part 2: Oldest-ever PhD; most embarrassing citation ever; blame the antibodies?

booksAs we noted Saturday, there was so much happening around the web last week that it made sense to break up Weekend Reads, especially since this is a holiday weekend in the U.S. and elsewhere. Here’s part 2: Continue reading Weekend reads, part 2: Oldest-ever PhD; most embarrassing citation ever; blame the antibodies?

Weekend reads: Gay canvassing study redux; editors fired; how the world’s biggest faker was caught

booksThis week at Retraction Watch was dominated by the Science same-sex marriage study, after we broke the news Wednesday morning that one of its authors had requested its retraction. (And crashed our servers in the process.) So the first section of this Weekend Reads will focus on pieces following up on that story:

But there was plenty more happening this week: Continue reading Weekend reads: Gay canvassing study redux; editors fired; how the world’s biggest faker was caught

Chip slip: Irreproducibility erases computer memory paper

nanoscaleResearchers at the Chinese Academy of Sciences have retracted a paper in Nanoscale about an experimental computer chip after they were unable to recreate their published results.

“We retract this article to avoid misleading readers and intend to undertake further tests to confirm our previous results,” they write in the notice.

The scientists are working on developing a chip that uses resistive random-access memory, which allows a huge amount of information to be stored in a tiny package and accessed quickly while using very little power. A number of companies are working on the technology, but none have successfully commercialized it.

Here’s the notice for “High uniformity and improved nonlinearity by embedding nanocrystals in selector-less resistive random access memory” (free, but requires login): Continue reading Chip slip: Irreproducibility erases computer memory paper

“The first author assumes all responsibility:” Malaria vaccine article retracted for image manipulation

InfectAndImmunAuthors of a 2012 article in Infection and Immunity investigating a malaria vaccine strategy are retracting it because it “contains several images that do not accurately reflect the experimental data.”

The paper, “Fine Specificity of Plasmodium vivax Duffy Binding Protein Binding Engagement of the Duffy Antigen on Human Erythrocytes,” has been cited 9 times, according to Thomson Scientific’s Web of Knowledge.

The retraction notice places the blame for the image shenanigans squarely on the first author, Asim Siddiqui, who is currently listed on LinkedIn as a faculty member at the College of Applied Medicine at King Saud University in Saudi Arabia.

Here’s the notice: Continue reading “The first author assumes all responsibility:” Malaria vaccine article retracted for image manipulation

What should an ideal retraction notice look like?

logoHave you seen our “unhelpful retraction notices” category, a motley collection of vague, misleading, and even information-free entries? We’d like to make it obsolete, and we need our readers’ help.

Here’s what we mean: Next month, Ivan will be traveling to Rio to take part in the World Conference on Research Integrity. One of his presentations is a set of proposed guidelines for retraction notices and their dissemination that we hope will inform publishing practices and severely limit the number of entries in our “unhelpful retraction notices” category. In September, for example, we announced that our guidelines would be linked from PRE-val, which “verifies for the end user that content has gone through the peer review process and provides information that is vital to assessing the quality of that process.”

Here’s a draft of our proposed guidelines, which include many of the items recommended by the Committee on Publication Ethics and the International Committee of Medical Journal Editors: Continue reading What should an ideal retraction notice look like?

JAMA vitamin-hip fracture study earns Expression of Concern for integrity issues

jama coverJAMA has issued an Expression of Concern about a 2005 study of whether two different types of vitamin B could prevent broken hips in people who’d suffered strokes.

The original study concluded:

In this Japanese population with a high baseline fracture risk, combined treatment with folate and vitamin B12 is safe and effective in reducing the risk of a hip fracture in elderly patients following stroke.

Here’s the notice for the study, “Effect of folate and mecobalamin on hip fractures in patients with stroke: a randomized controlled trial:” Continue reading JAMA vitamin-hip fracture study earns Expression of Concern for integrity issues

The “worst moment of my scientific career:” Two bird migration articles brought down by analytical error

JAvianBio_ak19Evolutionary and conservation biologists in Spain are retracting two articles – one from the Journal of Avian Biology and the other from Ardeola – because they discovered a fatal flaw in their analysis.

The Journal of Avian Biology article, “Are European birds leaving traditional wintering grounds in the Mediterranean?” aimed to determine whether the abundance of passerines had decreased in recent decades, but failed to control for birds that may have gotten killed by hunters. Although it was published in January, we can only find an abstract from its acceptance by the journal in November 2014.

The authors detail the saga of their error in the retraction notice: Continue reading The “worst moment of my scientific career:” Two bird migration articles brought down by analytical error

Author retracts study of changing minds on same-sex marriage after colleague admits data were faked

science coverIn what can only be described as a remarkable and swift series of events, one of the authors of a much-ballyhooed Science paper claiming that short conversations could change people’s minds on same-sex marriage is retracting it following revelations that the data were faked by his co-author.

[3:45 p.m. Eastern, 5/28/15: Please see an update on this story; the study has been retracted.]

Donald Green, of Columbia, and Michael LaCour, a graduate student at UCLA, published the paper, “When contact changes minds: An experiment on transmission of support for gay equality,” in December 2014. The study received widespread media attention, including from This American Life, The New York Times, The Wall Street Journal, The Washington Post,  The Los Angeles Times, Science Friday, Vox, and HuffingtonPost, as LaCour’s site notes.

David Broockman and Joshua Kalla, graduate students at University of California, Berkeley, were two of the people impressed with the work, so they planned an extension of it, as they explain in a timeline posted online yesterday: Continue reading Author retracts study of changing minds on same-sex marriage after colleague admits data were faked

“Super-surgeon” Macchiarini guilty of misconduct, external review finds

Paolo Macchiarini
Paolo Macchiarini

Paolo Macchiarini, the celebrated surgeon whose work has come under scrutiny in Italy and at the Karolinska Institutet in Sweden, committed misconduct in six papers, according to an external reviewer.

Macchiarini is best known for creating tracheas from cadavers and patients’ own stem cells. The findings of the external review, first reported yesterday by SvD Nyheter, were made public last week. They are only available in Swedish thus far, and we have requested a copy from the Karolinska.

External reviewer Bengt Gerdin, of Uppsala University, summarized his findings this way for Retraction WAtch: Continue reading “Super-surgeon” Macchiarini guilty of misconduct, external review finds