Category: corrections

Urologist makes what he calls “clarifications” to multiple articles

Screen Shot 2015-09-30 at 10.22.32 AMWe have discovered several errata for a New York City urologist, including in one paper that previously inspired one of our favorite headlines.

The latest development is pretty straightforward: Ashutosh K. Tewari has issued errata to multiple papers in two journals that note changes to some data points. But the backstory has some twists and turns, so you may need to read this one carefully.

We’ll start with the paper that might be familiar to eagle-eyed readers, on incontinence after surgery: “Effect of a Risk- Grade of Nerve-sparing Technique on Early Return of Continence After Robot-assisted Laparoscopic Radical Prostatectomy.” It was published in European Urology in 2012, and has been cited 21 times, according Thomson Scientific’s Web of Knowledge. Here’s the correction note (paywalled  — tsk, tsk):

Continue reading Urologist makes what he calls “clarifications” to multiple articles

Following criticism, BMJ “clarifies” dietary guidelines investigation

downloadThe BMJ has issued two “clarifications” to an investigation it published last week that questioned whether the new U.S. dietary guidelines were evidence-based.

The article criticized several aspects of the new dietary guidelines, such as “deleting meat from the list of foods recommended as part of its healthy diets” — without, according to author Nina Teicholz, reviewing the scientific literature on meat. However, according to the clarification, that sentence should have specified “lean” meats.

After The BMJ‘s article appeared, an analysis on The Verge questioned whether Teicholz was guided by her own opinions. She’s the author of a book The Big Fat Surprise: Why Butter, Meat and Cheese Belong in a Healthy Diet. The Dietary Guidelines Advisory Committee also posted a lengthy “rapid response” — The BMJ‘s refined version of a comment section — to Teicholz’s article, saying it “strongly disagrees with many of the statements represented as facts.”

This afternoon, Rebecca Coombes, head of investigations and features at The BMJ, posted a response: Continue reading Following criticism, BMJ “clarifies” dietary guidelines investigation

Journal corrects CrossFit injury data in paper at center of lawsuit

XLargeThumb.00124278-201509000-00000.CVA study on the trendy and grueling workout regimen known as CrossFit has a correction concerning the number of participants hurt during 10 weeks of training. The paper has been the center of multiple lawsuits  — one by CrossFit, and one by a CrossFit gym owner — for allegedly over-inflating the risks associated with the regimen.

The original paper claimed that 9 of 54 participants dropped out of the study due to “overuse or injury.” The correction note says that just two left for those reasons.

The paper, published in The Journal of Strength and Conditioning Research actually concludes that CrossFit has some benefits. According to the abstract: Continue reading Journal corrects CrossFit injury data in paper at center of lawsuit

When the title states the wrong result, a paper gets corrected

PLOS ONE

Ever wonder why, on a round-trip, the leg home often feels shorter? A group of researchers found that’s only true in hindsight, as people look back on which leg felt shorter — the trouble is, when the paper first appeared, the title mistakenly stated the opposite was true.

One June 10, PLOS ONE published a paper entitled “The Return Trip Is Felt Longer Only Postdictively: A Psychophysiological Study of the Return Trip Effect”; 17 days later, it was republished under the correct title, “The Return Trip Is Felt Shorter Only Postdictively: A Psychophysiological Study of the Return Trip Effect.”

On July 15, the journal posted a correction notice explaining its mistake:

Continue reading When the title states the wrong result, a paper gets corrected

Science Signaling corrects data fudged by former UCSF student

afbb251f8bc8f71e26b313c77669d48fA paper containing data fudged by former University of California San Francisco grad student Peter Littlefield has been corrected. We knew that this was coming — last month, the Office of Research Integrity issued a report that Littlefield had admitted to misconduct, and agreed to a retraction or correction of the two affected papers.

Published in Science Signaling, “Structural analysis of the /HER3 heterodimer reveals the molecular basis for activating HER3 mutations” examined the structural details of a protein associated with cancer. It has been cited two times, according to Thomson Scientific’s Web of Knowledge.

According to the correction note, the concentration of a protein presented in one figure was “miscalculated;” in another figure, the error bars were “calculated incorrectly.”

A statement from the UCSF affirmed that principle investigator Natalie Jura has “not been implicated in any research misconduct finding,” and explains that Continue reading Science Signaling corrects data fudged by former UCSF student

Erratum for economics paper after authors “failed to cite some very relevant recent papers”

Experimental EconomicsThe authors of a paper that examined the best way to inspire creativity in the workplace have issued an erratum after they “failed to cite some very relevant recent papers in experimental economics.”

The paper, “Incentives for creativity,” was published by Experimental Economics only a few months ago — in May — by two researchers from the University of California San Diego and the University of Amsterdam. Sanjiv Erat and Uri Gneezy found that incentives don’t actually improve creativity, and competitive incentives can actually reduce creativity.

The notice updates the paper with references to four studies published between 2012 and 2015:

Continue reading Erratum for economics paper after authors “failed to cite some very relevant recent papers”

Animal welfare breach prompts Nature correction

cover_nature (1)A 2011 letter to Nature from Harvard researchers received its second correction today, this time after discovering the researchers conducted experiments in which mice may have “experienced more pain and suffering than originally allowed for.”

That quote comes from an accompanying editorial in the journal, a rare move for a correction to a 2011 letter. But it’s an unusual correction, for a letter that found that a component of a pepper plant appeared to selectively kill cancer cells, leaving healthy cells relatively unscathed.

Here’s the first paragraph from the detailed correction notice, published today: Continue reading Animal welfare breach prompts Nature correction

Correction “does not change the scientific meaning” of leukemia letter

blood

The journal Blood has issued a correction in a 2009 letter about the molecular underpinnings of chronic lymphocytic leukemia.

Despite the extent of the changes to a figure, “the error does not change the scientific meaning,” according to the erratum.

The article “p73, miR106b, miR34a, and Itch in chronic lymphocytic leukemia” was written in response to a 2009 Blood paper about the role of a microRNA in CLL. But its western blots were “assembled incorrectly,” leading to duplicated panels. Another set of panels was “shifted.”

So the authors repeated the experiments, and presented them in a correction. Here’s the correction notice in full, published earlier this month, including the figures in question:

Continue reading Correction “does not change the scientific meaning” of leukemia letter

Three retractions for geriatric medicine researcher

Screen Shot 2015-08-20 at 11.51.11 AMA trio of papers on health issues in elderly patients, all sharing an author, have been retracted from Geriatrics & Gerontology International. 

The reasons for the retractions range from expired kits, an “unattributed overlap” with another paper, “authorship issues,” and issues over sample sizes.

Tomader Taha Abdel Rahman, a researcher at Ain Shams University in Cairo, is the first author on two of the papers, and second author on the third.

Here’s the retraction note for a paper that showed elderly adults with chronic hepatitis C are at risk of having cognitive issues:

Continue reading Three retractions for geriatric medicine researcher

Stem cell researcher Jacob Hanna’s correction count updated to 10

Jacob Hanna
Jacob Hanna

Thanks to some eagle-eyed readers, we’ve been alerted to some corrections for high profile stem cell scientist Jacob Hanna that we had missed, bringing our count to one retraction and 13 errata on 10 papers.

The problems in the work range from duplications of images, to inadvertent deletions in figures, to failures by his co-authors to disclose funding sources or conflicts of interest. Hanna is the first or last author on 4 of the papers, and one of several on the rest.

First up, a correction to a Cell paper on which Hanna is the first author:

Continue reading Stem cell researcher Jacob Hanna’s correction count updated to 10