Category: clinical study retractions

NFL and NYT collide: Did studies on concussion rates leave out necessary data?

National Football LeagueThe National Football League failed to include data from diagnosed concussions in peer-reviewed studies, making the sport look safer than it is, allege the results of an investigation published yesterday in the New York Times. Now, the paper and the NFL are arguing over whether the studies were supposed to include every instance of head injury.

Early studies on concussion rates published in the journal Neurosurgery left out at least 100 instances of of concussions, the Times reported. The Times and the NFL disagree on the implications of studies based on an incomplete data set: Sources told the Times that it’s bad science, while the NFL explains that the studies were “necessarily preliminary.”

Yesterday afternoon, the sports league published a statement saying that the Times story “is contradicted by clear facts” and “sensationalized.” The statement argued that:  Continue reading NFL and NYT collide: Did studies on concussion rates leave out necessary data?

Family squabble over safety of eye therapy forces journal to pull paper

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A father and son are fighting over whether a laser therapy they describe as co-authors of a 2015 paper could be harmful to patients, prompting the journal to retract the article.

The small study suggested that the therapy could safely treat patients with glaucoma. But Tomislav Ivandic — the father — alleges that errors in how the study was reported could lead to harmful doses of laser light for patients receiving the therapy. His son and co-author, Boris Ivandic, maintains that the article is accurate.

To err on the side of patient safety, Photomedicine and Laser Surgery retracted “Effects of Photobiomodulation Therapy on Patients with Primary Open Angle Glaucoma: A Pilot Study.”

The retraction note explains the dispute:

Continue reading Family squabble over safety of eye therapy forces journal to pull paper

Lawsuit couldn’t stop four retractions for diabetes researcher

Mario Saad
Mario Saad

Four expressions of concern in the journal Diabetes have turned into retractions for Mario Saad, a move which he had tried to stop with a lawsuit.

Last August, a judge dismissed Saad’s suit against the American Diabetes Association, which publishes Diabetes, concluding that the expressions of concerns on the papers were not defamation, but part of an “ongoing scientific discourse.” Now, after an investigation at the University of Campinas in Brazil, where Saad is based, and an assessment from an ADA ethics panel (which overturned some of Unicamp’s recommendations), the journal has added to that discourse by turning the EOCs into retractions — and flagging two more of Saad’s papers with EOCs.

Together, the retracted papers have been cited more than 600 times.

As the retraction notes explain, Continue reading Lawsuit couldn’t stop four retractions for diabetes researcher

Biologist’s research under investigation in Sweden after being questioned on PubPeer

Holgersson
Suchitra Sumitran-Holgersson

The University of Gothenburg in Sweden is investigating several papers co-authored by biologist Suchitra Sumitran-Holgersson after they were challenged on PubPeer.

Sumitran-Holgersson already has one retraction under her belt — of a 2005 Blood paper, after another investigation concluded the results “cannot be considered reliable.” Sumitran-Holgersson and her husband, co-author Jan Holgersson, did not sign the retraction notice. Both were based at the Karolinska Institutet (KI) at the time, but have since moved to the University of Gothenburg.

Now, the University of Gothenburg has launched its own investigation of the papers questioned on PubPeer, according to Continue reading Biologist’s research under investigation in Sweden after being questioned on PubPeer

Macchiarini dismissed from Karolinska

Paolo Macchiarini
Paolo Macchiarini

The Karolinska Institutet has dismissed former rising star surgeon Paolo Macchiarini from his post, effective immediately.

A KI news release, dated today, states:

The Staff Disciplinary Board at Karolinska Institutet has today decided to relieve Paolo Macchiarini of his duties as a researcher at KI. He is to be informed immediately that his contract has been rescinded.

For a refresher on the story, check out our constantly updating timeline. As a brief recap: Continue reading Macchiarini dismissed from Karolinska

“A big mistake:” Paper about the dangers of Wi-Fi pulled for plagiarism

A report that presents guidelines for treating people allegedly harmed by signals from Wi-Fi and mobile phones was pulled two weeks after publication for plagiarism.

However, the retraction note, published in the March issue of Reviews on Environmental Health, doesn’t use the word “plagiarism,” and instead blames the move on lost citations and errors. The editor of the journal, David Carpenter, told us the report — which takes the controversial stance that WiFi can cause harm to some people — was retracted because “major sections of it had been taken directly” from another source, without reference.

The journal didn’t catch the plagiarism because it didn’t send the report out for peer review, Carpenter said:

[W]e didn’t subject the article to the full peer review that is applied for all other submissions, and that always include an on-line search for plagiarism.

The reason, Carpenter told us: the paper “was the outcome of a large committee.”

Here’s the retraction note for “EUROPAEM EMF Guideline 2015 for the prevention, diagnosis and treatment of EMF-related health problems and illnesses:”

Continue reading “A big mistake:” Paper about the dangers of Wi-Fi pulled for plagiarism

NEJM: No plan to clarify wording that led to allegations of breached confidentiality

NEJMThe New England Journal of Medicine (NEJM) has no plans to change the wording of an article that led to allegations of breached patient confidentiality and caused a minor social media firestorm this past weekend, the journal told Retraction Watch.

The paragraph in question appeared in an essay by Lisa Rosenbaum chronicling the history of power morcellation, a technique to remove gynecological organs that the FDA has subjected to a “black box warning” because it can also spread tumors: Continue reading NEJM: No plan to clarify wording that led to allegations of breached confidentiality

Antifungal drug paper didn’t have institution’s approval

Authors have pulled a paper on an antifungal drug that is potentially toxic because it lacked final approval from their institution.

The study describes a patient who had experienced liver toxicity after taking voriconazole. During the study, the authors re-administered the drug to the patient using “a slow dose titration.” But their institution didn’t approve the study before it was published online.

Here’s the retraction note for “Successful Rechallenge with Voriconazole following Medication-Induced Hepatotoxicity,” published in Antimicrobial Agents and Chemotherapy.  Continue reading Antifungal drug paper didn’t have institution’s approval

Corrections chip away at asbestos paper for conflicts of interest, “misleading” citation

EBPHThe journal Epidemiology Biostatistics and Public Health has issued back-to-back corrections for a 2015 paper after the authors failed to disclose conflicts of interest with the asbestos industry and included an “erroneous citation.”

The mistaken citation was more than just a clerical error, critics argue — it undermines one of the key arguments of the paper, “Critical reappraisal of Balangero chrysotile and mesothelioma risk,” which disputes claims that an asbestos mine in northwest Italy was responsible for numerous cases of an aggressive form of cancer called mesothelioma. The authors, led by Edward Ilgren formerly of Oxford University, claim that “myriad sources” of other forms of asbestos—rather than the asbestos produced at the mine, called chrysotile—exist in the region “to account for the alleged cases.”

However, according to a recently added correction, the citation does not support one of the authors’ claims about how other forms of asbestos arrived at the mine area.

Continue reading Corrections chip away at asbestos paper for conflicts of interest, “misleading” citation

Retracted anesthesia study “was not conducted in reality”

coverWe’ve come across a new way to say the data in a paper are not reliable:

It has been found that the study represented in the article was not conducted in reality.

That’s from the retraction note for a paper that Anesthesia Essays and Researches has retracted for data falsification. The rest of the retraction note for “Intrathecal dextmedetomidine to reduce shoulder tip pain in laparoscopic cholecystectomies under spinal anesthesia” explains:

Continue reading Retracted anesthesia study “was not conducted in reality”