Category: freely available

Kenji Okajima retraction count grows to five

Kenji Okajima
Kenji Okajima

We’ve been following the case of Kenji Okajima, a professor at Nagoya City University in Japan who was suspended for six months following an investigation into work in his lab. Bits of the story — including at least one other university investigation, and scrutiny of Okajima’s colleagues, one of whom was fired — have been dribbling out for almost two years since a retraction notice in the Journal of Neuroscience.

In all, it looks as Nagoya found evidence of misconduct in 19 papers. The Journal of Neuroscience retraction appeared in 2011, and another showed up in the Journal of Immunology last year. Now there are three more: One in Translational Research and two in Blood.

Here’s the notice from Translational Research: Continue reading Kenji Okajima retraction count grows to five

Orangutan-Ebola link in PLOS ONE paper under scrutiny

plosonePLOS ONE has issued a fascinating expression of concern about data collection in a paper it published late last year on the possible spread of deadly viruses among Indonesian orangutans. The case has been brought to the attention of the Indonesian government, but more on that in a moment.

The article, published last July by an international group of primate scientists led by Chairul Nidom, a virologist at Indonesia’s Airlangga University, sounded an alarm about “wild” orangutans in Borneo: Blood tests of 353 “healthy” animals showed antibodies for viruses akin to Ebola. What’s more, the filoviruses viruses to which the antibodies responded, as New Scientist and other outlets reported when the original paper came out, included strains not previously seen outside Africa (as well as Marburg, another deadly infection).

The article immediately prompted two comments. The first, by a poster called orangutanborneo, raised questions about the scale and logistics of the project: Continue reading Orangutan-Ebola link in PLOS ONE paper under scrutiny

Rapid response: Authors retract a PNAS paper within six weeks after Nobel Prize winner spots an error

pnas 2-26Sometimes, retractions happen months, or even years, after another researcher spots problems in a paper. But when it’s a Nobel Prize winner who finds the error, things might move more quickly.

In the case of a recent paper in the Proceedings of the National Academy of Sciences, the retraction happened within six weeks. Here’s the notice for “Voltage sensor ring in a native structure of a membrane-embedded potassium channel,” by Liang Shi, Hongjin Zheng, Hui Zheng, Brian A. Borkowski, Dan Shi, Tamir Gonen, and Qiu-Xing Jiang, which first appeared online on February 11: Continue reading Rapid response: Authors retract a PNAS paper within six weeks after Nobel Prize winner spots an error

Image problems lead to demise of paper on ginseng for heart attack

JMM march13coverA group of researchers from Shangdong, China, has retracted their 2011 paper in the Journal of Molecular Medicine on the heart-protective properties of a substance in ginseng because the article contained dodgy figures.

The article, “Ginsenoside-Rg1 enhances angiogenesis and ameliorates ventricular remodeling in a rat model of myocardial infarction,” purported to show that ginsenoside: Continue reading Image problems lead to demise of paper on ginseng for heart attack

Hefty correction in JBC for GMO researchers in image tampering case

jbcmarch13coverLast November we wrote about the case of Alejandra Bravo and Mario Soberón, a wife-husband team of microbiologists studying genetically modified crops, who had been disciplined by the National Autonomous University of Mexico for having manipulated images in 11 papers.

The tinkering did not rise to the level of fraud, according to the university — which perhaps helps explain why it didn’t lead to requests for retractions, according to Soberón.  Instead, he said at the time, at least seven journals would be issuing corrections. We now have what appears to be the first of these, in the Journal of Biological Chemistry. Continue reading Hefty correction in JBC for GMO researchers in image tampering case

Seals of disapproval, as pinniped paper gets yanked for plagiarism

ImageJoseph Hoffman, an animal behavior researcher at the University of Bielefeld in Germany says he got a “kind of odd” feeling as he read a recent paper on the transcriptome of the spotted seal. Let’s just call it deja vu.

The article, “Characterization of the spotted seal Phoca largha transcriptome using Illumina paired-end sequencing and development of SSR markers,” which appeared in Comparative Biochemistry and Physiology Part D: Genomics and Proteomics:

Continue reading Seals of disapproval, as pinniped paper gets yanked for plagiarism

Post 982 — in which we find plagiarized bone graft paper that grafted from other papers

thesurgeonThe Surgeon has retracted a 2012 article by a group from the U.K. who took text from a previously published article. So, you say? Nu?

Well, we found — through relatively little effort — that the plagiarizees were themselves, shall we say, liberal in their use of material from other sources.

The retracted article was titled “Bone graft substitutes: What are the options?,” and it appeared in August 2012. One of the options, we guess, was to steal text.

According to the retraction notice: Continue reading Post 982 — in which we find plagiarized bone graft paper that grafted from other papers

Error scuppers paper on treatment for liver fibrosis

pharmbioPharmaceutical Biology has retracted a 2012 paper by a group of liver researchers from China after the discovery of an error that evidently invalidated the results in the paper.

The article, “Antifibrotic effects of protocatechuic aldehyde on experimental liver fibrosis,” purported to show that

protocatechuic aldehyde, the major degradation of phenolic acids … has potentially conferring antifibrogenic effects.

In other words, the compound appears to prevent the formation of liver fibroids.
But it doesn’t — at least, not according to the study — as the retraction notice explains: Continue reading Error scuppers paper on treatment for liver fibrosis

Flu paper duplication earns Expression of Concern

influenzaA six year-old review on bird flu that failed to credit some content from another six year-old review of bird flu is now stamped with an Expression of Concern.

Here’s the notice, from Influenza and Other Respiratory Viruses: Continue reading Flu paper duplication earns Expression of Concern