Category: plos one

A journal has issued an expression of concern for a 2020 paper by researchers in Korea who have used 3-D printing to create artificial eyes for dogs.

The study triggered a slew of critical comments from readers, who were outraged by the ethics of the research and what they saw as inadequate protections for the animals against pain.

The paper is titled “Custom-made artificial eyes using 3D printing for dogs: A preliminary study,” and the senior author is Kyung-Mee Park, of Chungbuk National University. According to the abstract: 

Continue reading “There can be no justification for such studies”: Paper on artificial eyes for dogs earns expression of concern

PLOS ONE has retracted a paper on pneumonia in people with Covid-19 after the authors could not allay concerns about the integrity of their data. 

The article, “Lung ultrasound score in establishing the timing of intubation in COVID-19 interstitial pneumonia: A preliminary retrospective observational study,” appeared in September and was written by a group from Zhejiang University School of Medicine, in Hangzhou, China. 

About three months after publication, PLOS ONE issued an expression of concern about the article, citing suspicious overlap with a 2018 paper in a different journal. It concluded:

Continue reading PLOS ONE retracts paper purporting to be about lung ultrasound for COVID-19 but that had suspicious overlap with pre-pandemic article

A veterinary researcher at the University of Maryland has lost seven papers for problematic images and other issues, bringing his retraction total to 13. 

Siba Samal, who studies viruses and vaccines, lost four of his articles in March after journals determined that figures in the papers were unreliable. And he was a co-author on papers flagged in a U.S. Office of Research Integrity finding of misconduct by another researcher.

Some of those questions were raised — first, it seems — by Elisabeth Bik, who in November 2015 reported her concerns to PLOS ONE about a different one of Samal’s articles, which she also flagged on PubPeer. 

The journal is now retracting that article, titled “Evaluation of the replication, pathogenicity, and immunogenicity of Avian Paramyxovirus (APMV) serotypes 2, 3, 4, 5, 7, and 9 in Rhesus macaques.” According to the retraction notice: 

Continue reading U Maryland virus researcher up to 13 retractions

Researchers in China have received an expression of concern for a recent paper on COVID-19 pneumonia after editors were alerted to suspicious similarities between the tables in the article and those in a 2018 study by members of the same group.

In case you missed that: The pandemic started long after 2018.

Continue reading COVID-19 pneumonia paper earns expression of concern — for being similar to a pre-pandemic article

PLOS ONE has issued an expression of concern for a paper it published last month suggesting that vitamin D might protect against severe COVID-19. 

Central to the concerns is that the authors seem to have been too far out over their skis in asserting a link between the vitamin and the response to the infection. But as the EoC reveals, many of the potential problems can fairly be attributed to porous peer review as much as over-ambitious authors. 

The article, “Vitamin D sufficiency, a serum 25-hydroxyvitamin D at least 30 ng/mL reduced risk for adverse clinical outcomes in patients with COVID-19 infection,” came from a group at Tehran University of Medical Sciences in Iran and Boston University in the United States. According to the authors: 

Continue reading Paper suggesting vitamin D might protect against COVID-19 earns an expression of concern

In July 2014, Elisabeth Bik notified PLOS ONE that she’d found three papers in the journal by a group of researchers who had clearly manipulated figures in the articles. 

More than six years later, the journal has finally retracted the publications. 

The authors were affiliated with the Fourth Military Medical University in Shaanxi, China. The notice for 2013’s “Hyperthermia-induced NDRG2 upregulation inhibits the invasion of human hepatocellular carcinoma via suppressing ERK1/2 signaling pathway” refers to overlapping data in Figure 1A, similarities between data in Figure 1B and Figure 6C despite the fact that lanes “represent samples exposed to different experimental conditions,” and more:

Continue reading “I do wish that journal editors would not take six years to perform an investigation and to retract.”

A homeopathy journal that Elsevier dropped in the wake of concerns about excessive self-citation appears to have carved out a new niche for itself: self-pity. 

In 2016, Homeopathy lost its slot on Thomson Reuters’s (now Clarivate’s)  influential journal rankings list after an analysis found that more than 70% of citations in the papers it published were of papers it published. That led Elsevier to cut the journal loose — although it remains in business under the umbrella of Thieme, and has since earned its impact factor back. (For more on why that’s important to journals, see this story.)

Part of Homeopathy’s mission under new ownership, it seems, is to criticize journals that have spurned its contributors. Well, one journal, anyway.

Continue reading Did a journal retract your paper on homeopathy? Meet the journal that will publish your complaint

Last month, PLOS ONE published a paper reporting on a trial to improve the uptake of the measles vaccine in Nigeria. The researchers were affiliated with IDinsight, a San Francisco-based “global advisory, data analytics, and research organization that helps development leaders maximize their social impact.”

San Francisco is about 7,800 miles from Lagos, and the list of authors — Sam Brownstone, Alison Connor and Daniel Stein, a former economist at the World Bank — seemed suspiciously devoid of Nigerian names.  

That omission was even more strange given the title of the article: “Improving measles vaccine uptake rates in Nigeria: An RCT evaluating the impact of incentive sizes and reminder calls on vaccine uptake.” Almost immediately after publication, Ejemai Eboreime, a physician and public health worker, pointed out on Twitter the implausibility of the implied claim that no local scientists were involved in a randomized controlled trial covering nine clinics throughout the country — which he alleged also was a violation of local research ethics provisions. 

Continue reading “Consistently unsurprised”: Nigerian vaccine study with no Nigerian authors retracted

The associate vice president for research at Georgia State University and founding director of the university’s Center for Molecular and Translational Medicine has had his tenth paper retracted.

Like the nine previous retractions for Ming-Hui Zou, the work underlying the newly retracted paper in PLOS ONE was performed while Zou was at Oklahoma State University.

The extensive retraction notice for “Activation of the AMP-Activated Protein Kinase (AMPK) by Nitrated Lipids in Endothelial Cells” refers to problems in six of the paper’s figures, including unexpected similarities and likely splicing. It concludes:

Continue reading Associate VP for research at Georgia State is up to 10 retractions