Five more retractions for researcher who sued PubPeer commenters brings tally to 18

Fazlul Sarkar
Fazlul Sarkar

A cancer researcher who tried to sue PubPeer commenters for criticizing his work has earned five more retractions, bringing his total to 18. 

All of the new retractions for Fazlul Sarkar, formerly based at Wayne State University in Michigan, appear in the International Journal of Cancer. All cite an institutional investigation, and relate to issues with images.

With 18 retractions, Sarkar has now earned a spot on our leaderboard.

We first encountered Sarkar when he subpoenaed PubPeer to reveal the names of anonymous commenters that potentially cost him a job at the University of Mississippi. Earlier this month, a Wayne State spokesperson confirmed to us that Sarkar has now retired from the university. (To get up to speed, check out our timeline on the major events in this case.)

Here’s the first of the retraction notices, issued today: Continue reading Five more retractions for researcher who sued PubPeer commenters brings tally to 18

You’ve been dupe’d: Results so nice, journals published them twice

With so many retraction notices pouring in, from time to time we compile a handful of straight-forward retractions.

Once again, this list focuses on duplications — but unlike other duplications, these authors were not at fault. Rather, these retractions occurred because the publishers mistakenly published the same paper twice — the result of a transfer between publishers, for instance, or accidentally publishing the unedited version of the paper. We’re forced to wonder, as we have before, whether saddling researchers’ CVs with a retraction is really the most fair way to handle these cases.

So without further ado, here’s five cases where the journal mistakenly duplicated a paper, and had to retract one version: Continue reading You’ve been dupe’d: Results so nice, journals published them twice

Saudi institution didn’t clear genotyping study

Journal of Pharmacy and Pharmacology

A journal is retracting a paper that sought to validate genotyping techniques after learning the authors skipped a key step.

The authors scanned blood samples from 500 people who visited “the Blood Bank of our institution,” as they note in the abstract, to validate the use of genotyping techniques in the Saudi population. But the authors didn’t obtain the proper clearance from their institution, King Faisal Specialist Hospital, to publish the work.

Here’s the retraction notice for “Genotyping of CYP2C19 polymorphisms and its clinical validation in the ethnic Arab population:”

Continue reading Saudi institution didn’t clear genotyping study

Neuroscientist in Serbia earns 8th retraction amid investigation

RadenovicA neurobiologist has notched her eight retraction in the midst of an ongoing investigation into her work by her institution, the University of Belgrade in Serbia.

As we reported previously, a mass clean-up by the Archives of Biological Sciences (ABS), the official journal of the Serbian Biological Society resulted in six retractions of papers co-authored by Lidija Radenović. (Radenović served as vice president of the Serbian Biological Society until July 2014.)

In April, we reported that Radenović was about to notch her seventh retraction in Acta Neurologica Scandinavica; that paper has now been pulled, and ABS has retracted another one of her papers.

Here’s the retraction notice by ABS: Continue reading Neuroscientist in Serbia earns 8th retraction amid investigation

Author, among others, loses four papers for “compromised” peer review

Annals of human geneticsJournals have retracted four papers from an author after uncovering evidence the peer review process had been compromised. Three papers have all common authors. 

In one notice, issued last month, Annals of Human Genetics said it had reason to believe the paper had been reviewed by unqualified reviewers. Last year, another journal, Molecular Biology Reports, pulled two papers by the same group — all based at the China Medical University in Shenyang — all for peer-review issues. Additionally, Molecular Biology Reports also retracted another paper co-authored by Peng Liu last year, which did not include her other colleagues on the three other papers. All papers describe the epigenetic changes — modifications in expressions of genes — that may underlie cancer.

Here’s the retraction notice in the Annals of Human Genetics, published June 27: Continue reading Author, among others, loses four papers for “compromised” peer review

Investigation raises questions about top cancer researcher’s work

Journal of Pathology

A prominent pancreatic cancer researcher has lost a meeting abstract and corrected a Nature paper following an institutional investigation.

Queen Mary University of London determined that, in an abstract by Thorsten Hagemann, “elements of the study summarised by this abstract are not reliable.” Hagemann has recently issued a correction to a 2014 Nature paper he co-authored, which also cited the Queen Mary University of London (QMUL) investigation, noting there was reason to question the provenance of the data.

Hagemann is currently the medical director of Immodulon Therapeutics, and has long been recognized for his work in the field, including a three-year grant of £180,000 from the Pancreatic Cancer Research Fund in 2013.

Here’s the retraction notice from the The Journal of Pathology, regarding an abstract from the 7th Joint Meeting of the British Division of the International Academy of Pathology and the Pathological Society of Great Britain & Ireland: Continue reading Investigation raises questions about top cancer researcher’s work

Seventh retraction appears for cancer researcher who sued PubPeer commenters

sarkar
Fazlul Sarkar

Fazlul Sarkar, who sued PubPeer commenters for criticizing his work, has logged two more retractions, bringing his total to seven.

The two retractions appear in the Journal of Cellular Physiology, and follow five others released last week by another Wiley journal, Journal of Cellular Biochemistry. All notices mention an investigation at Wayne State University, where Sarkar is on the faculty.

Here’s the notice for “Activated K-Ras and INK4a/Arf Deficiency Promote Aggressiveness of Pancreatic Cancer by Induction of EMT Consistent With Cancer Stem Cell Phenotype:” Continue reading Seventh retraction appears for cancer researcher who sued PubPeer commenters

Researcher suing PubPeer commenters earns 5 retractions following investigation

sarkar
Fazlul Sarkar

An investigation at Wayne State University has prompted five retractions for a scientist who is suing PubPeer commenters after they criticized his work on the site.

The investigation into Fazlul Sarkar and his co-authors found that the papers contain images that were “inappropriately manipulated” or “inappropriately re-used and re-labeled.” All five retraction notices are from the Journal of Cellular Biochemistry.

Here’s the retraction notice for “Concurrent inhibition of NF-κB, cyclooxygenase-2, and epidermal growth factor receptor leads to greater anti-tumor activity in pancreatic cancer:

Continue reading Researcher suing PubPeer commenters earns 5 retractions following investigation

Misidentified cell line fells cancer paper

Screen Shot 2016-04-15 at 2.52.06 PMResearchers have retracted a paper about a new molecular target for cancer after realizing they had mistaken the identity of their cell line.

It’s all too easy to mix up cell lines, so we see plenty of retractions for that reason — and, according to an expert in the area, many more cases lurk uncorrected in the literature.

The retraction notice for “Knockdown of tumor protein D52-like 2 induces cell growth inhibition and apoptosis in oral squamous cell carcinoma” in Cell Biology International explains the authors’ perspective on this case:

Continue reading Misidentified cell line fells cancer paper

Three more papers felled by suspected fake reviews

Food Processing and Preservation

So far, we’ve counted more than 300 papers that have been retracted after editors suspected the peer-review process had been compromised — and we’re adding three more to the list.

Editors of the Journal of Food Processing and Preservation became suspicious of the three papers after discovering similarities in reports from supposedly different reviewers. When they were unable to verify the identities of the reviewers, they pulled the papers.

An editor told us that he thinks the reviewer identities were fabricated entirely (as opposed to stolen):

Continue reading Three more papers felled by suspected fake reviews