Category: basic life sciences retractions

Duke pulmonary researcher up to 14 retractions, putting her on our leaderboard

PLOS OneA pair of Duke researchers who each have more than 10 retractions have earned some more.

Both of the newly retracted papers — originally published in 2012 by PLOS ONE — list Erin Potts-Kant as a co-author; one includes her former supervisor, Michael Foster, as lead author. The pair has since left Duke (Potts-Kant was arrested for using school credit cards to shop at the likes of Target, and Foster retired). The reason provided for these retractions will be familiar to anyone who’s been following their case — there were “concerns about the reliability” of the data.

By our count, Potts-Kant now has 14 retractions, making her one of the few women to hold a position on our leaderboard.

Here’s the retraction notice for “Iron Supplementation Decreases Severity of Allergic Inflammation in Murine Lung,” a paper that lists both Foster and Potts-Kant as authors:

Continue reading Duke pulmonary researcher up to 14 retractions, putting her on our leaderboard

Oops — journal published same paper three times

surface interface analysisOn November 25, 2014, a journal published an article on mass spectrometry. Then on December 18th they published it again — twice.

Yes: “Mass analysis by Ar-GCIB-dynamic SIMS for organic materials” was mistakenly published a total of three times.

Over a year later, the journal pulled the two redundant publications. Here’s the retraction notice for one of them:

Continue reading Oops — journal published same paper three times

Former Pitt postdoc admits to faking data

pittA former postdoc at the University of Pittsburgh has admitted to committing research misconduct in published papers and in National Institutes of Health (NIH) grant applications.

The Office of Research Integrity (ORI) said on Friday that Kenneth Walker, who was studying the development of the urinary tract,  Continue reading Former Pitt postdoc admits to faking data

Data manipulation flushes paper on gut bacteria

cell reportsData manipulation in a Cell Reports paper blew the importance of a kind of bacteria out of proportion.

Retracted this month — less than three months after it was published — the paper showed, according to a summary on the cover page:

B. subtilis is a symbiont that resides in the gut of C. elegans and generates nitric oxide that is essential for the host. Xiao et al. demonstrate that nitric oxide promotes defense against pathogenic bacteria by activating p38 MAPK, demonstrating the importance of commensal bacteria in host immunity.

But B. subtilis — a member of the Bacillaceae family — aren’t actually as plentiful as they appeared, explains the retraction notice for “Gut-Colonizing Bacteria Promote C. elegans Innate Immunity by Producing Nitric Oxide:”

Continue reading Data manipulation flushes paper on gut bacteria

Biologists earn 5th retraction following Swedish investigation

plos pathA team of biologists have earned a fifth retraction for a paper containing manipulated images, following an investigation by the Swedish government.

Last year, the investigation found that former Uppsala University doctoral student Apiruck Watthanasurorot had manipulated figures in five papers, four of which have already been retracted. Earlier this year, we reported that his supervisor, last author Kenneth Söderhäll, had requested PLOS Pathogens simply correct the fifth paper because independent groups have confirmed the findings. But according to the retraction notice for “Bacteria-Induced Dscam Isoforms of the Crustacean, Pacifastacus leniusculus,” Söderhäll has since agreed to the retraction:

Continue reading Biologists earn 5th retraction following Swedish investigation

Cancer paper that doctored image from Science story earns retraction

lungcancercoverHere’s a joke for all you middle-schoolers out there. How are doctored images like bad pennies? They keep cropping up!

Here’s the latest one we’ve picked up: Lung Cancer has retracted a 2014 paper on the genetics of tumors after concluding the authors cribbed a figure that had appeared in a 2005 feature story in Science.

The paper, “ß-elemene against human lung cancer via up-regulation of P53 protein expression to promote the release of exosome,” drew attention on PubPeer last September from a reader who noticed striking similarities between one of the images the authors used and a figure in the Science piece (subscription required). According to the PubPeer commenter: Continue reading Cancer paper that doctored image from Science story earns retraction

Stem cell researchers fix two papers following PubPeer comments

Screen Shot 2016-04-13 at 5.56.09 PMA pair of stem cell researchers have earned two corrections, the result of images that were mislabeled, distorted, or compiled incorrectly, according to the notices.

Kang Cheng prepared the gels when he was a research fellow in last author Sanjeev Gupta‘s lab at the Albert Einstein College of Medicine. Gupta told us he reviewed the original gels, and the errors didn’t affect the conclusions in the papers, which were reproducible. He noted he believes the problems are the result of honest mistakes:

The errors did not confer any benefits whatsoever either for the papers or for Dr. Cheng.

On PubPeer, commenters have raised questions about the now corrected papers — along with several others on which Gupta is the senior author, but Cheng is not a co-author.

Edward Burns, research integrity officer at Einstein, told us that the medical school looked into an allegation of misconduct against Gupta:  

Continue reading Stem cell researchers fix two papers following PubPeer comments

Journal flags duplicated text by gynecologic cancer researcher with 13 retractions

cancers-logo

When journals discover duplicated material, many choose to retract — but a cancer journal recently faced with the same dilemma involving a researcher with multiple retractions under his belt has instead decided to flag the paper with an expression of concern.

An editor told us that Cancers considered retracting the paper, by gynecologic cancer researcher Noriyuki Takai, but decided not to because the paper

contains some novel content that is of interest to the scientific community.

“Epigenetic Therapy in Human Choriocarcinoma,” published in 2010, has been cited once, according to Thomson Reuters Web of Science, and self-plagiarizes from other publications by Takai and his co-author, Hisashi Narahara. Both are researchers at Oita University in Japan.

Here’s the expression of concern:

Continue reading Journal flags duplicated text by gynecologic cancer researcher with 13 retractions

Book publisher: Authors plagiarized “in good faith” because they cited previous work

A publisher has retracted a chapter from a book on flow cytometry after determining the authors plagiarized some material — but noted that because the authors cited the article they lifted from, they likely acted “in good faith.”

We were tipped off to this retraction from the authors of the review article the chapter plagiarized from, who told us they were upset by the incident and doubted whether the authors had performed the experiments they described in the chapter.

More broadly, the retraction raises an important question: How can publishers retract one chapter of a book, leaving the rest intact?

First, let’s take a look at the retraction notice: Continue reading Book publisher: Authors plagiarized “in good faith” because they cited previous work

Plant biologist’s paper pulled for falsification, three more questioned on PubPeer

PMBP Cover ImagePhysiology and Molecular Biology of Plants has retracted a paper about using Darjeeling tea clones against abiotic stress for problems with one of the figures.

The specific problem: “falsification/fabrication” of data underlying the figure, which the corresponding author — Sauren Das from the Indian Statistical Institute in Calcutta, West Bengal — couldn’t resolve. Das told us he denies the allegations made by the journal.

Meanwhile, three other papers by Das have been questioned on PubPeer. 

Let’s take a look at the retraction note: Continue reading Plant biologist’s paper pulled for falsification, three more questioned on PubPeer