Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘karger’ Category

Third party company botched student’s doctoral work, says biologist

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Cellular Physiology and BiochemistryA PhD student who was supposed to complete part of an experiment passed the job on to a third party company, which in turn provided figures that were plagiarized and fabricated. That’s according to the corresponding author of the paper, which has now been retracted.

Hong Ren, affiliated with Xi’an Jiao Tong University in China, told us that he decided to delay the student’s graduation after he discovered that the student had passed off the work.

It’s not at all obvious that a third party was involved from the brief retraction notice for “EMT phenotype is induced by increased Src kinase activity via Src-mediated caspase-8 phosphorylation:”

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You’ve been dupe’d: Data so nice, you see them twice

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j repro infertLast Friday we resurrected a previous feature of Retraction Watch, compiling five retractions that appeared to be simple acts of duplication.

This week, we spotlight another five unrelated retractions which, as we said last week, cover duplications in which the same – or some of the same – authors published the same – or some of the same – information in two different papers.

Most duplications are straightforward — all authors simply send the same or similar study to two or more journals, a violation of most journals’ terms of use.  For instance: Read the rest of this entry »

Three more retractions for former record-holder Boldt, maybe more to come

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Justus Liebig University in Germany has been investigating concerns that Joachim Boldt, number two on the Retraction Watch Leaderboard and now up to 92 retractions, may have “manipulated” more data than previously believed.

Until now, the vast majority of Boldt’s retractions were thought to have involved inadequate ethics approval. However, new retraction notices for Boldt’s research suggest that there’s evidence the researcher also engaged in significant data manipulation.

The first retraction from the university investigation emerged last year. Two of three new notices cite the investigation specifically, and an informant at the university told us that there are more retractions to come.

Here are the retracted papers that are freshly on the record, starting with an August retraction for a 1991 Anesthesiology paper (cited 37 times, according to Thomson Scientific’s Web of Knowledge):

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When should a paper be retracted? A tale from the obesity literature

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obesity factsIn our line of work, we see it all — mega-corrections that don’t quite rise to the level of retraction, letters to the editor that point out seemingly fatal flaws in papers that remain untouched, and studies retracted for what seem like minor reasons. It can make you wonder what makes a paper worthy of a retraction. A recent case in an obesity journal may not provide a definitive answer, but it gives us a lot to chew on.

Here’s the story: In September 2013, Rosely Sichieri and a colleague from the State University of Rio de Janeiro submitted an article to Obesity Facts, “Unbalanced Baseline in School-Based Interventions to Prevent Obesity: Adjustment Can Lead to Bias?” The article examined statistical issues in randomized controlled trials of school-based weight loss programs. Peer reviewers said the paper needed major revisions before it could be accepted; the authors revised the paper enough in a second draft, submitted in November 2013, that the original reviewers accepted it. The paper was published in June 2014.

Then, in September 2014, a group of authors including David Allison of the University of Alabama, Birmingham, and colleagues from Clemson, Thomas Jefferson, and the University of Minnesota, wrote a critical letter that was published in the journal in April. The letter, according to a just-published editorial: Read the rest of this entry »

Gynecologic cancer researcher earns eighth retraction

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Screen Shot 2015-04-02 at 5.50.31 PMNoriyuki Takai, a gynecologic cancer researcher in Japan, has notched one more retraction — bringing the total to eight — due to figures that were “processed inappropriately” and did “not accurately report the original data.”

According to the notice, Takai alone put the figures together in the 2006 Oncology paper, which tested a histone deacetylase inhibitor on endometrial and ovarian cancer cell lines. The team is part of the department of obstetrics and gynecology at Oita University in Japan.

Takai lost four papers in 2013 in Cancer Letters, and three papers in 2012 in Gynecologic Oncology, also due to issues with figures.

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Alleged Medicare cheat loses paper for data mix-up

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A Boston doctor indicted on charges of Medicare fraud in 2007 has had a paper relating to the case retracted this month.

Abdul Razzaque Ahmed was considered something of a miracle worker by his patients, treating two rare and disfiguring skin conditions called pemphigoid and pemphigus vulgaris. He used more powerful medicines than the typical course of treatment, including a drug normally used to treat cancer.

The initial indictment stated that Ahmed mixed blood samples to falsely show a “dual diagnosis” of both diseases, and prove to Medicare that they required the more rigorous (and expensive) treatment. It also alleged that he profited massively from the government pay-outs. He was convicted of obstruction in 2007; the other charges were dropped when he agreed to forfeit assets worth $2.9 million.

Now, a 2001 paper by Ahmed, which claimed fifteen patients had a dual diagnosis, has been retracted because the samples were all mixed. Here is the retraction notice from Clinical Immunology: Read the rest of this entry »

Authors retract Digestion paper for “unacceptably high number of errors”

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A group of South Korean researchers has decided to withdraw a paper they recently published in the journal Digestion because it was filled with mistakes.

The paper, “Endoscopy-Based Decision Is Sufficient for Predicting Completeness in Lateral Resection Margin in Colon Endoscopic Submucosal Dissection,” was published earlier this year (and online in late 2011) by a group in Seoul. But according to the retraction notice:

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Written by amarcus41

August 31st, 2012 at 9:30 am

Plagiarism leads to retraction of liver cancer paper

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The journal Digestion has a retraction notice that’s, well, an amusing morsel.

At issue was a 2011 paper on a biomarker for liver cancer by a group of Turkish authors who plagiarized from the work of others.

Here’s the notice for the article, titled “Diagnostic and Prognostic Validity of Golgi Protein 73 in Hepatocellular Carcinoma“: Read the rest of this entry »

Written by amarcus41

July 12th, 2012 at 9:30 am

Second retraction for former SUNY Upstate department chair found guilty of misconduct

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Last week, we covered the case of Michael W. Miller, a former department chair at the State University of New York (SUNY) Upstate who was forced to retract a paper in the Journal of Neurochemistry after a university investigation found he had committed misconduct.

We figured more retractions might be on the way, so we weren’t surprised when a commenter informed us earlier today of “very interesting and odd retraction letter.” Miller has had at least one other retraction, it turns out, this one in Developmental Neuroscience for 2009’s “Lability of Neuronal Lineage Decisions Is Revealed by Acute Exposures to Ethanol.” Here’s the notice, published online on January 19: Read the rest of this entry »

ME-Coli: Germ paper retracted after mentor accuses authors of idea theft

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Plagiarism can involve the theft of words, and we’ve covered plenty of such cases (like this one). But here’s a case of what appears to be more wholesale lifting of everything from ideas to assays.

The Journal of Molecular Microbiology and Biotechnology (JMMB), a Karger title, has retracted an October 2010 paper, “Characterization of Methyltransferase Properties of Escherichia coli YabC Protein with an Enzyme-Coupled Colorimetric Assay,” by Jingsong Gu and Chunjiang Ye. Both of those scientists are in the department of biotechnology at the University of Jinan in China.

Gu had trained as a postdoctoral research in the laboratory of biologist Elaine Newman, of Concordia University in Montreal who describes herself as a “long time friend” of E. coli. (As they say, with friends like that, who needs enemas?)

The retraction notice — a trio of remarkably revealing letters — begins with an apologia from the authors: Read the rest of this entry »

Written by amarcus41

January 6th, 2011 at 11:44 am