Researchers in Japan have issued their fourth retraction, noting that the same figures were used to depict different experimental conditions.
The group lost two papers in 2015 for the same reason, following a misconduct investigation at Oita University in Japan. Last year, the same group notched another retraction, and pegged the responsibility for the problematic figures on first author Satoshi Hagiwara.
Now, the group has published a fourth retraction in the European Journal of Pharmacology; the latest notice doesn’t identify a culprit. All four retracted papers list Hagiwara as first author.
Here’s the latest retraction notice: Continue reading Japan group earns 4th retraction following investigation
When two papers include the same images of rat hearts, one of those papers gets retracted.
The papers share a corresponding author, Zhi-Qing Zhao of Mercer University School of Medicine in Savannah, Georgia. This marks his third retraction; we reported on two others earlier this year.
The papers examine the effect of curcumin, which has antinflammatory properties (in addition to giving the spice turmeric its yellow color). The retracted paper, “Dual ACE-inhibition and angiotensin II AT1 receptor antagonism with curcumin attenuate maladaptive cardiac repair and improve ventricular systolic function after myocardial infarctionin rat heart,” was published in the January 5, 2015 issue of the European Journal of Pharmacology, and has zero citations, according to Thomson Scientific’s Web of Knowledge. It shares multiple figures with another 2012 paper, “Curcumin promotes cardiac repair and ameliorates cardiac dysfunction following myocardial infarction,” published in the British Journal of Pharmacology, which has not been retracted. The BJP paper has been cited 18 times.
Here’s the retraction note for the EJP paper:
Continue reading Heart researcher gets 3rd retraction for copying images of rat hearts
An investigation at Karolinska Institute has led to the retraction of a paper about drug treatments for alcoholics, after concluding the article contains a “very careless data workup.”
The paper, “Memantine enhances the inhibitory effects of naltrexone on ethanol consumption,” found that the drug memantine (normally used to treat Alzheimer’s) enhances the effects of naltrexone in rats, which blocks the high of alcohol. It was published in the European Journal of Pharmacology and has been cited 10 times, according to Thomson Scientific’s Web of Knowledge.
However, its conclusion is now “unreliable,” according to the retraction note:
Continue reading Investigation finds “careless data workup” in alcoholism drug paper
A group of Italian researchers has retracted their 2013 paper on colorectal cancer because one of the authors, they, say, was tinkering with the data.
The article, “PBOX-15 induces apoptosis and improves the efficacy of oxaliplatin in human colorectal cancer cell lines,” appeared in the European Journal of Pharmacology in August. The first author was Giuseppina Gangemi, of the University of Salerno.
The paper purported to find that:
Continue reading Bogus Western blots lead to retraction of cancer paper
The European Journal of Pharmacology has — against its will, it would seem — retracted a 2012 paper by a group of Chinese heart researchers embroiled in a what appears to be a rather messy authorship dispute.
The article, “The effect of alendronate on the expression of osteopontin and osteoprotegerin in calcified aortic tissue of the rat,” came from the Institute of Cardiovascular Disease at Tongji Hospital, part of of Huazhong University of Science and Technology.
As the retraction notice states:
Continue reading Author break prompts retraction of bone protein paper