A highly cited study examining the risks of heart disease in post-menopausal women with symptoms of polycystic ovary syndrome (PCOS) has been retracted by its authors because they could not replicate the results.
Here’s the retraction notice for the paper, which appeared in the Journal of Clinical Endocrinology & Metabolism: Continue reading Highly cited paper on women and heart disease retracted for failure to replicate
There’s been a 10th retraction from two former postdocs at a UT-Southwestern cancer research center who were sanctioned by the Office of Research Integrity (ORI) last September, in part due to observations and comments from Retraction Watch readers.
It’s a 2008 Cancer Letters paper, “Methylation of apoptosis related genes in the pathogenesis and prognosis of prostate cancer,” retracted at the request of Makoto Suzuki, the first author who has claimed responsibility for falsifying data in this and five other papers. Continue reading ORI-sanctioned former UT-Southwestern cancer researchers up to 10 retractions
ChemPhysChem is retracting a pair of articles by a group of researchers in China and their colleagues who pieced together the work from two previously published articles.
The papers appeared in 2012 and 2015, and were flagged by a reader whose own work had been improperly cited, according to the editor of the journal.
The 2012 article was titled “Adsorption Features of Flavonoids on Macroporous Adsorption Resins Functionalized with Ionic Liquids,” and has been cited twice, according to Thomson Scientific’s Web of Knowledge. The senior author was Duolong Di, of the Lanzhou Institute of Chemical Physics in Qingdao. According to the retraction notice:
Continue reading Improper citation, PubPeer comment snowballs into double retraction in phys chem journal
A Canadian research team has retracted a meeting abstract “published in error” from a supplement by Allergy, Asthma & Clinical Immunology, as it had previously been published in another journal.
The December 2014 abstract, “A post-hoc qualitative analysis of real time heads-up pollen counting versus traditional microscopy counting in the environmental exposure unit (EEU),” describes a custom digital imaging method for counting pollen in real-time. The abstract was published ten months earlier, in February 2014, under the same title in the Journal of Allergy and Clinical Immunology.
Here is the full retraction note:
The editor-in-chief of Organizational Behavior and Human Decision Processes has issued an Expression of Concern about a 2011 paper that explores the link between ethical leadership and employee performance.
The paper, “Linking ethical leadership to employee performance: The roles of leader–member exchange, self-efficacy, and organizational identification,” is one of seven that were flagged in a report by Arizona State University (ASU) that investigated the corresponding author, Frederick Walumbwa, for possible research misconduct, as we noted in November.
“The fit statistics reported in the article contain many errors,” the notice says. It goes on to say that “it is difficult to understand the implications of these errors unless the raw data is made available” — but that the authors were not able to provide it. Here’s the full text of the expression of concern: Continue reading Retraction-plagued management researcher hit with expression of concern
Researchers at Harvard have retracted a Cell paper on biofilm disassembly after they repeated the experiment—following contradictory results from another team—and the new results “can no longer support” the original conclusions.
The 2012 paper, “A Self-Produced Trigger for Biofilm Disassembly that Targets Exopolysaccharide,” describes a factor called norspermidine, produced by the bacteria Bacillus subtilis, that appeared to break down biofilms. The researchers used it to prevent biofilm formation of B. subtilis, Escherichia coli, and Staphylococcus aureus. The paper was cited 72 times, according to Thomson Scientific’s Web of Knowledge.
Two years after it was published, a team from University of Texas Southwestern Medical Center in Dallas and the University of Dundee in the UK contradicted the findings in another Cell publication, “Norspermidine Is Not a Self-Produced Trigger for Biofilm Disassembly.” This time, the authors concluded that norspermidine is not present in B. subtilis biofilms, and actually promotes, rather than breaks down, biofilms. They wrote: Continue reading Harvard biofilm paper in Cell breaks down after challenged findings can’t be repeated
Authors have retracted three papers from the Journal of Physiology because they contained “falsified or fabricated data.”
The papers, which address calcium signaling in heart muscle cells, are among the six pegged for retraction after an Office of Research Integrity (ORI) investigation into one of the authors, Igor Dzhura, formerly of Vanderbilt University. The ORI found that Dzhura had committed an enormous amount of fraud, involving dozens of faked images and more.
Dzhura was fired from a job at Novartis in November after the company discovered that his application had included the fraudulent work.
The three retracted Journal of Physiology papers and their citation figures, courtesy of Thomson Scientific’s Web of Knowledge, are: Continue reading “[W]e can learn from these bad actors:” Trail of retractions follows former Vanderbilt researcher’s fraud
The Journal of Bone and Joint Surgery has retracted a 2012 paper because of ethical violations, initially flagged by the journal in 2013.
The study, which examined the use of autologous cell therapy in treating Achilles tendinosis, claimed in its abstract to have “conducted a randomized, double-blind study on forty Achilles tendons in thirty-two patients.” Apparently, though, it wasn’t actually a clinical trial but was somehow, according to the retraction notice, “misclassified” as such “in error.”
The problem was originally flagged by the UK’s Medicines and Healthcare products Regulatory Agency, which wrote the journal to tell them that it hadn’t granted ethical approval for the study, as we reported in 2013. At the time, there was a question about whether the lead author had retained records of the results, which is addressed in the retraction notice, signed by editor-in-chief Marc F. Swiontkowski and editor-in-Chief Emeritus Vernon T. Tolo: Continue reading Clinical trial of Achilles tendon therapy retracted for not actually being a clinical trial
A group of authors have withdrawn a 2011 Journal of Biological Chemistry paper, but then appear to have re-published almost the same paper a month later, only this time with just five of the original nine authors.
The paper, “HDAC3-dependent reversible lysine acetylation of cardiac myosin heavy chain isoforms modulates their enzymatic and motor activity,” concerns a type of protein regulation important to cardiac stress. Written by researchers at the University of Chicago and the University of Pittsburgh, it has been cited 16 times, according to Thomson Scientific’s Web of Knowledge. It was rated “Exceptional” by a reviewer on the Faculty of 1000 website.
As we’ve come to expect from the JBC, here’s the full retraction notice, in all its inexplicit glory: Continue reading Déjà vu: JBC epigenetics paper is retracted, then largely re-published with fewer authors
Cancer biologist Rakesh Kumar has chalked up another retraction, this time for “identical,” “duplicated,” and “replicated” figures and images.
It comes on the heels of a flurry of motions in Kumar’s $8 million lawsuit against his employer, George Washington University, for breach of contract and emotional distress because it removed him as department chair last year and placed his research on hold. Kumar remains employed by the university.
The retracted paper, published in Development in 2004, “Metastasis-associated protein 1 deregulation causes inappropriate mammary gland development and tumorigenesis,” analyzed the role of a protein, MTA1, in mammary gland development and cancer. It was published while Kumar was at M.D. Anderson in Houston, and has been cited 81 times, according to Thomson Scientific’s Web of Knowledge.
By our count, Kumar now has three retractions and five corrections. Numerous anonymous comments on Kumar’s papers have been posted on PubPeer, many of them critiquing images. Here’s the complete notice from Development: Continue reading Third retraction for GWU biologist as university seeks to dismiss his $8 million lawsuit