Category: expression of concern

A 2018 study in PNAS that claimed to show a biotech company’s platform for creating immunotherapies was better than existing methods has earned an expression of concern over the reproducibility of some of its findings.

When the article appeared, STAT called “Cell engineering with microfluidic squeezing preserves functionality of primary immune cells in vivo,” a “major paper that showed more clearly why companies like Roche are so interested in using its technique.”

The technique was developed by SQZ Biotech, which was founded by MIT’s Robert Langer, a founder or co-founder of numerous biotechs including Moderna, and with whom Roche partnered in 2015.

The paper has been cited 55 times, according to Clarivate Analytics’ Web of Science. According to a press release announcing the work:

Continue reading Biotech’s ‘cell squeezing’ technology paper earns expression of concern

A group of heart researchers in China now have four expressions of concern, along with a retraction, for questions about the reliability of their data. 

The latest expressions of concern for the team, led by Bu Lang Gao, of Shijiazhuang First Hospital of Hebei Medical University, involves a 2019 paper in Springer Nature’s Scientific Reports titled “Asymmetrical middle cerebral artery bifurcations are more vulnerable to aneurysm formation.”

Here’s the notice for the article, which has been cited 4 times, according to Clarivate Analytics’ Web of Science: 

Continue reading Expressions of concern mount for heart researchers over data provenance

A PLOS journal has issued an expression of concern for a 2018 paper which claimed that ivermectin could be useful as a way to control dengue fever. 

In fact, the reason the journal re-examined the article was because the hype about the use of ivermectin for Covid-19 led at least one skeptic to take a closer look at the study – and he didn’t like what he saw. 

The article, “Antivirus effectiveness of ivermectin on dengue virus type 2 in Aedes albopictus,” was written by a group in China led by Tie-Long Xu, of the National Institute of Parasitic Diseases at the  Chinese Center for Disease Control and Prevention. According to the study, which appeared on PLOS Neglected Tropical Diseases: 

Continue reading How an ivermectin study that didn’t mention COVID-19 fell under scrutiny

A virology journal has issued an expression of concern about a paper claiming that the SARS-CoV-2 virus can damage DNA after one member of the research team raised reservations about the reported findings. 

The article, “SARS-CoV-2 Spike Impairs DNA Damage Repair and Inhibits V(D)J Recombination In Vitro,” was written by a pair of scientists at institutions in Sweden and published in MDPI’s Viruses (as Vincent Racaniello of TWiV would say, the kind that make you sick).

The paper has received a fair amount of attention – particularly among vaccine skeptics who, as critics noted, used the article to buttress their claims that Covid vaccines are unsafe – generating enough buzz on social media and in the news to make it into the top 5% of all articles tracked by Altmetric. TWiV even devoted part of an episode of the show to the findings. 

According to the journal: 

Continue reading COVID-19 spike protein paper earns an expression of concern

A journal has slapped an expression of concern on a 2021 paper reporting on the utility of self-administered “battlefield” acupuncture in soldiers, citing readers who said the FDA has not approved the devices for that use – a point the authors, who object to the move, dismissed as irrelevant and misleading. 

The study, which appeared in Medical Acupuncture, looked at the experiences of a dozen veterans at an Ohio VA hospital who’d purportedly self-administered acupuncture to treat chronic pain. According to this 2010 article from the U.S. military: 

Continue reading Authors unhappy as “battlefield acupuncture” paper earns an expression of concern

The Journal of Neuroscience has slapped expressions of concern on a pair of papers linked to the maker of a controversial drug to treat Alzheimer’s disease. 

As we and others have reported, Cassava Sciences has been under intense scrutiny lately. In August, the law firm Labaton Sucharow – who is representing Cassava short sellers – submitted a “citizen’s petition” to the FDA regarding a regulatory filing from the company for its drug simulfilam and called on the agency to halt trials of the experimental medication because it had: 

Continue reading Two expressions of concern arrive for papers linked to beleaguered biotech Cassava

You might say that the third time is not the charm for a paper on some elusive fermions.

For the third time this year, a leading science journal has raised concerns about a paper on the “Majorana” particle, which, if it exists, would hold promise for building a quantum computer.

In March, Nature retracted a paper on the particle, and in July, Science placed an expression of concern on a different paper that purported to find “a relatively easy route to creating and controlling [Majorana zero modes] MZMs in hybrid materials.”

Today, Science is slapping an expression of concern on another Majorana paper:

Continue reading Another setback for ‘Majorana’ particle as Science paper earns an expression of concern

An Elsevier journal has issued an expression of concern for a paper it published earlier this year by a Dutch researcher who studies the neurobiology of sexuality.

The article,“Sexual orientation, neuropsychiatric disorders and the neurotransmitters involved,” was written by a group led by Dick Swaab, of the Department of Neuropsychiatric Disorders at the Netherlands Institute for Neuroscience in Amsterdam. 

The abstract of the latest study reads: 

Continue reading Paper on sexual orientation and neuropsychiatric disorders earns an expression of concern

A leading heart journal has issued an expression of concern for a meeting abstract it published earlier this year by a cardiac surgeon who sells dietary supplements of questionable utility.

The case is the second involving a recent meeting of the American Heart Association.

The abstract, titled “Mrna COVID Vaccines Dramatically Increase Endothelial Inflammatory Markers and ACS Risk as Measured by the PULS Cardiac Test: a Warning,” was presented at the AHA’s 2021 Scientific Sessions in mid-November and was published in Circulation. 

The author was Steven Gundry, a cardiac surgeon by training who now sells dietary supplements on his website. Gundry also sees patients at the Center for Restorative Medicine and International Heart & Lung Institute in California and offers advice on YouTube.

But critics have accused Gundry of peddling worthless — if ultimately expensive — advice. 

Continue reading Abstract linking COVID-19 vaccines to heart trouble risk earns expression of concern