Category: freely available

Authors’ public dispute over retraction notice in Cytokine ends in a draw, bruises journal

Cytokine had an interesting retraction notice this year that points up the pitfalls — perhaps necessary, perhaps not — that journals can step in when they give authors the benefit of the doubt.

Here’s the story: A doctoral student named Varun Kesherwani was working in the lab of Ajit Sodhi, a U.S.-trained and well-published cell biologist at Banaras Hindu University. Kesherwani’s Linkedin page lists him as a postdoc at the University of Nebraska.

The two were co-authors on a 2007 paper in Cytokine, “Quantitative role of p42/44 and p38 in the production and regulation of cytokines TNF-α, IL-1β and IL-12 by murine peritoneal macrophages in vitro by Concanavalin A.” (That paper has been cited nine times, according to Thomson Scientific’s Web of Knowledge, including by the retraction notice.)

But it seems Kesherwani, who was listed as the paper’s corresponding author despite his junior status, did not have his mentor’s blessing when he submitted the manuscript. Continue reading Authors’ public dispute over retraction notice in Cytokine ends in a draw, bruises journal

Patient database errors lead to three rheumatology retractions

The authors of three papers in Rheumatology International about systemic sclerosis, also known as scleroderma, are retracting them after patients were misidentified in databases. According to the three notices:

This article has been retracted at the request of the authors. The authors made a serious statistical error which unfortunately invalidates their results.

Corresponding author Metin Isik tells Retraction Watch that the error was adding a patient with systemic sclerosis database twice, and adding another patient with polymyositis, not systemic sclerosis, to the sclerosis database. (Why the journal didn’t spell that out in the notice is anyone’s guess, but we’ve asked the editor for comment and will update with anything we hear back.)

It’s easy to see how three patients would affect the results of “Systemic sclerosis and malignancies after cyclophosphamide therapy: a single center experience,” Continue reading Patient database errors lead to three rheumatology retractions

The HeLa problem: What a retraction says about whether cancer researchers can trust their cell lines

Retraction Watch readers who’ve read Rebecca Skloot’s bestseller The Immortal Life of Henrietta Lacks may remember that decades ago, scientists began realizing that Lacks’s cells, now known as the HeLa cell line and used in labs around the world, were so good at proliferating that they had taken over many other cell lines researchers use to study human disease.

Such readers would have been nodding their heads at a front-page Wall Street Journal on Saturday. As Amy Dockser Marcus (no relation to Adam) reports: Continue reading The HeLa problem: What a retraction says about whether cancer researchers can trust their cell lines

Whistling the same Tunisia: Serial plagiarists plague the oncology literature

A group of cancer researchers from Tunisia has been seeding the oncology literature with plagiarized articles that steal liberally — both text and data — from the work of others.

The group has one retraction, in the journal Obesity — whose splash page has the jaunty, if disconcerting, invite: “Welcome to Obesity!” — and at least two withdrawn papers. However, we have been alerted to at least one other case of apparent plagiarism involving an article in the Annals of Saudi Medicine that ought to receive careful scrutiny. Continue reading Whistling the same Tunisia: Serial plagiarists plague the oncology literature

Math paper retracted because it “contains no scientific content”

Have a seat, this one’s a howler.

According to a retraction notice for “Computer application in mathematics,” published in Computers & Mathematics with Applications: Continue reading Math paper retracted because it “contains no scientific content”

It’s all bad, it’s all good: JCI retracts for made-up data but authors stand behind work

The Journal of Clinical Investigation has retracted a 2010 article after the researchers acknowledged that the paper contained a substantial amount of manipulated or manufactured data.

How much bad data? Enough to sink seven figures. And the authors said they could not produce raw data in another 19 or so figures and four tables.

But, as the notice states, the researcher said that despite the retraction, they stand by the thrust of their article, “Sphingosine-1-phosphate receptor-2 deficiency leads to inhibition of macrophage proinflammatory activities and atherosclerosis in apoE-deficient mice:” Continue reading It’s all bad, it’s all good: JCI retracts for made-up data but authors stand behind work

Crise de foie: Liver journals retract duplicate biomarker pubs

Two liver journals have retracted articles from a group of Irani researchers who published similar — but not quite identical — versions of the same paper some months apart.

A retraction notice in the Journal of Gastrointestinal and Liver Diseases — which bills itself as the “Official Journal of the Romanian Societies of Gastroenterology” — explains what happened: Continue reading Crise de foie: Liver journals retract duplicate biomarker pubs

JCO expresses concern over images from Spanish group that had aroused earlier concern

The Journal of Clinical Oncology has issued an expression of concern about a 2003 article by a group of researchers in Spain who appear to have had recurrent problems with images.

The paper has been cited 56 times, according to Thomson Scientific’s Web of Knowledge. Here’s the notice:

It has been brought to our attention, regarding Figure 1, Part A, that similarity exists between bands 3, 4, and 5 of the top row and bands 1, 2, and 3 of the bottom row, including the presence of artifacts, in the April 15, 2003 article by [Jose] RomanGomez et al, entitled, “Cadherin-13, a Mediator of Calcium Dependent Cell-Cell Adhesion, Is Silenced by Methylation in Chronic Myeloid Leukemia and Correlates With Pretreatment Risk Profile and Cytogenetic Response to Interferon Alfa” (J Clin Oncol 21:1472-1479, 2003).  This similarity has raised concerns about whether these rows represent independent data. We alerted the corresponding author, Dr. Roman-Gomez, of this concern, and he has repeated the experiment shown in the original Figure 1, with the results below. Although the results of the figure appear to be unchanged, we wish to inform the readers of this issue, so that they may make their own independent assessment.

Continue reading JCO expresses concern over images from Spanish group that had aroused earlier concern

Third retraction arrives for Alirio Melendez, this one in the Journal of Cellular Physiology

Alirio Melendez, the former National University of Singapore researcher who has already retracted two papers in the midst of an investigation into about 70 of his publications, has had a third retracted a third.

Here’s the notice from the Journal of Cellular Physiology: Continue reading Third retraction arrives for Alirio Melendez, this one in the Journal of Cellular Physiology

It “takes a long time to have these experiments redone,” so group retracts wheat paper after reader challenges

Normally we’d make hay with the following notice in Acta Biochimica et Biophysica Sinica — separating the wheat from the chaff, Love and Death, and all that — but, well, it speaks for itself (sort of).

A group of researchers in China have retracted their 2011 paper on the biochemistry of chloroplast in wheat: Continue reading It “takes a long time to have these experiments redone,” so group retracts wheat paper after reader challenges