Black marks on published papers don’t change citation rates, new study finds

Among the data analyzed were mean monthly citations per article for 151 papers that were retracted or issued some other editorial notice, and for a set of control articles. The solid vertical lines are median time to the peak citation month, and the dashed line is median time to the editorial notice.
H. Studd et al/medRxiv 2026

Neither retractions, expressions of concern, nor other editorial notices seem to keep authors from continuing to cite problematic papers, according to a look at what happened to more than 170 articles by one author.

“After the public notification of integrity concerns about an article, it would be expected that other authors would no longer cite the article because it is unreliable,” write the authors of a new preprint. But that’s not what they found in a limited comparative study. Whether the study is generalizable has yet to be seen, says one other expert.

Four sleuths – the University of Aberdeen’s Hugo Studd and Alison Avenell and the University of Auckland’s Andrew Grey and Mark J. Bolland – charted citation data for 172 papers on clinical trials from Zatollah Asemi, a nutrition researcher at Kashan University of Medical Sciences in Iran, whose work has come under scrutiny. 

Continue reading Black marks on published papers don’t change citation rates, new study finds

Weekend reads: What paper mills charge for author slots; UK Biobank data breached; what researchers think of the future of science

If your week flew by — we know ours did — catch up here with what you might have missed.

The week at Retraction Watch featured:

In case you missed the news, the Hijacked Journal Checker now has more than 400 entries. The Retraction Watch Database has over 64,000 retractions. Our list of COVID-19 retractions is up to 650, and our mass resignations list has more than 50 entries. We keep tabs on all this and more. If you value this work, please consider showing your support with a tax-deductible donation. Every dollar counts.

I Support Retraction Watch

Here’s what was happening elsewhere (some of these items may be paywalled, metered access, or require free registration to read):

Continue reading Weekend reads: What paper mills charge for author slots; UK Biobank data breached; what researchers think of the future of science

Buying a first author slot can cost you anywhere from $56 to $5,600

The market for fake authorship on a research paper has prices to match every budget, according to a new dataset compiled from thousands of advertisements on social media platforms and paper mill websites. 

The dataset, called BuyTheBy, is the first systematic attempt to understand the market for paper mill products, according to its creators. It compiles more than 18,000 text-based advertisements from seven paper mills operating across India, Iraq, Uzbekistan, Latvia, Ukraine, Russia and Kazakhstan, collected at various points between March 2020 to April 2026. The researchers found prices vary widely depending on geography, ranging from $56 to $5,631 for a first author slot, according to a preprint submitted to arXiv. 

Several of the advertisements appear to correspond with published papers subsequently published in the targeted journals, with identical titles to those advertised. But cracking down on the industry with datasets such as these will be difficult, some experts say, especially as the business model evolves rapidly with AI. 

Continue reading Buying a first author slot can cost you anywhere from $56 to $5,600

Journal goes dark after impersonating Eric Topol and others

Within hours of researchers from prestigious institutions discovering they were listed as authors on a fabricated paper, the website for the journal and publisher has been taken down. 

Cardiologist Eric Topol, the executive vice president of Scripps Research, posted on X yesterday that his name appeared on a “fraudulent” paper published in the so-called Journal of Digital Health Implementation. He suspected the article, dated March 29 and titled “Implementation Science for AI Integration in Digital Health Systems,” was AI-generated. 

“If there ever was an AI-generated paper, this one would qualify as a high probability of being so,” Topol, who is also founder and director of the Scripps Research Translational Institute, told Retraction Watch. 

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Another retraction and two investigations for chemist

Maximilian Lackner

A chemist in Austria who earned a retraction earlier this year is under investigation by his former university, a national research integrity agency and the publisher Elsevier, Retraction Watch has learned, while scrutiny of his publication record has broadened to include more papers flagged on PubPeer. 

Maximilian Lackner, a technical chemist and process engineer at FH Technikum Wien in Austria until October last year, according to his ORCID profile, was the senior and corresponding author on a paper in npj Science of Food retracted in January after publishers discovered the five of the cited references weren’t relevant to the claims they were meant to be supporting. The 2024 article has been cited 90 times, according to Clarivate’s Web of Science.

Editors also pointed out the information in a flow diagram for selecting studies didn’t appear anywhere else in the article. One of the authors, Fatemeh Ahmadi of the University of Western Australia, told the journal she and Lackner disagreed with the retraction. When we asked why, Ahmadi said the authors were “not interested” in our request for further information. 

Continue reading Another retraction and two investigations for chemist

A response to: Should universities investigate questionable papers students and faculty wrote elsewhere?

Editor’s note: We recently published a guest post on universities’ responsibility for investigating misconduct allegations related to work by staff and students conducted and/or published while they were at other institutions. The article prompted a vigorous discussion in the comment thread. Below is a letter to the editor from Itamar Ashkenazi and Howard Browman, both members of the Committee on Publication Ethics (COPE) Council.

Simon Kolstoe questions whether it is a university’s responsibility to act when concerns are raised about possible publication misconduct by their staff or students in situations where the misconduct relates to work conducted at other organizations.

We contend that it is their responsibility, regardless of where the work was conducted. That is because research and scholarly activity, while supported by universities, is conducted by people. It is the people who engaged in the misconduct who must be held accountable. That cannot happen without the participation of the institutions with which they had (and have) a formal relationship (as students, employees, contractors, etc.).

Continue reading A response to: Should universities investigate questionable papers students and faculty wrote elsewhere?

‘I asked him to stop’: Father adds daughter’s name to over 100 preprints without her permission

Anja/Pixabay

An author in China with nearly 500 preprints has continued to add his daughter’s name to papers – despite her insistence she was not involved. 

Shifa Liu, whose papers list affiliations with Peking University in China, has posted 499 works (and counting) on topics in physics and mathematics. His daughter, an undergraduate at an American university, is listed as a coauthor on over 100 of those preprints. In some cases, she was even named as the corresponding author. (Retraction Watch is not naming the daughter to respect her privacy and will not be accepting comments that name her.) 

The daughter told Retraction Watch she “did not participate in the research, writing, or submission of any of these papers,” adding her father included her name “without my knowledge or consent.” 

Continue reading ‘I asked him to stop’: Father adds daughter’s name to over 100 preprints without her permission

Major pharmacology journals flag another 15 papers by scientist facing criminal probe

Salvatore Cuzzocrea

A leading pharmacologist in Italy accused of embezzling research funds is now the subject of coordinated editorial action by one of the field’s professional societies. 

The American Society for Pharmacology and Experimental Therapeutics announced expressions of concern for 12 papers, corrections for two and a retraction in an editorial published April 3 in The Journal of Pharmacology and Experimental Therapeutics and Molecular Pharmacology. Salvatore Cuzzocrea, a pharmacology professor at the University of Messina, was a coauthor or corresponding author on all the papers. As we reported previously, Cuzzocrea is being investigated in Italy for allegedly embezzling more than 2 million euros in research reimbursements and allegedly rigging university contracts. 

Since our reporting on Cuzzocrea a year ago, journals have retracted five more of his papers. One, from BMC Neuroscience, was retracted 10 days after our reporting for containing data that appeared in an earlier publication. A different paper was retracted last year from Biology for containing overlapping images, another from Biomedicine & Pharmacotherapy for image overlaps, and the International Journal of Molecular Science retracted two more this year for containing duplications and “inappropriate editing” of micrographs. 

Continue reading Major pharmacology journals flag another 15 papers by scientist facing criminal probe

10 years ago, Elisabeth Bik published a preprint heard around the world

Elisabeth Bik

If you are at all familiar with scientific sleuthing, you’re familiar with Elisabeth Bik. She is quoted so often in the mainstream media it is probably difficult to imagine a time before her supersense for spotting similarities in images wasn’t making headlines. 

But it was 10 years ago, on April 19, 2016, when she made her debut, when we covered her work screening more than 20,000 biomedical research papers containing western blots. She and coauthors Ferric Fang – a member of the board of directors of our parent nonprofit organization, The Center for Scientific Integrity, and a professor at the University of Washington in Seattle – and Arturo Casadevall, of the Johns Hopkins School of Medicine in Baltimore, posted the work as a preprint on bioRxiv.org and it appeared two months later in mBio.

The preprint was a shot across the bow for journals and publishers, and in the decade since, Bik has advised and mentored others doing similar work. In 2024, she won the Einstein Foundation Award for “identifying misconduct and potential fraud in scientific publications, highlighting science’s problems policing itself.” She donated the proceeds to The Center for Scientific Integrity to create a fund to help other sleuths do their work.

Bik spoke with us earlier this month about the paper, sleuthing and more. The conversation has been edited for clarity and brevity.

Continue reading 10 years ago, Elisabeth Bik published a preprint heard around the world

Weekend reads: An alternative to the impact factor in China; the clinical trials of six ‘superretractors’; Retraction Watch goes to Capitol Hill

If your week flew by — we know ours did — catch up here with what you might have missed.

The week at Retraction Watch featured:

In case you missed the news, the Hijacked Journal Checker now has more than 400 entries. The Retraction Watch Database has over 64,000 retractions. Our list of COVID-19 retractions is up to 650, and our mass resignations list has more than 50 entries. We keep tabs on all this and more. If you value this work, please consider showing your support with a tax-deductible donation. Every dollar counts.

I Support Retraction Watch

Here’s what was happening elsewhere (some of these items may be paywalled, metered access, or require free registration to read):

Continue reading Weekend reads: An alternative to the impact factor in China; the clinical trials of six ‘superretractors’; Retraction Watch goes to Capitol Hill