Sage retracts eight papers by former Radboud ‘rising star’ for compromised peer-review process

The publisher Sage has retracted eight papers by a former “rising star” from a Dutch university for a “compromised” peer-review process at a journal he edited.

Last week, Retraction Watch obtained an email from an editor at Sage to the editorial board of Group & Organization Management, stating that, following a “thorough investigation,” the publisher would retract “a subset of articles” by the journal’s former editor-in-chief Yannick Griep. The retraction applies to eight of the 25 papers Griep coauthored in the journal, according to the July 14 retraction notice. The papers were retracted for a “compromised” peer-review process, the notice states. 

“As the peer-review process was administered by the former Editor in Chief, who is also the co-author of the articles, the objectivity of the peer-review process has been compromised,” reads a publisher’s note published alongside the retractions. The move “relates to the underlying review process and no determination has been made regarding the scientific content of the articles.”

Continue reading Sage retracts eight papers by former Radboud ‘rising star’ for compromised peer-review process

ORI sanction and news coverage prompts sleuthing, retraction

Four months after the Office of Research Integrity sanctioned a former postdoc for falsifying images in grant reports, a Science journal is retracting a paper by the researcher for image duplication. 

After reading our story about the ORI’s findings, sleuth Paul S. Brookes took a look at the researcher’s ORCID profile and ran his papers through an AI tool that spots duplicate images.  

Brookes’ analysis showed a 2019 paper in Science Signaling contained an image identical to an earlier study in Scientific Reports with the same first author — Chen-Yeh Ke, the former postdoctoral fellow at the Icahn School of Medicine at Mount Sinai in New York who was sanctioned by ORI in March for falsifying images in an unpublished manuscript supported by federal funds and reporting the fabricated results in two research performance progress reports. 

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A student claimed to have a Ph.D. in at least eight letters to journals. Two have been retracted. 

This past year, Zhihao Lei has signed his name to at least 35 letters to the editor of medical journals, weighing in on topics from ICU care to breast cancer. In eight of them, he identified himself as a Ph.D. at Cornell University, although he held only a bachelor’s degree at the time. 

Two of those letters, one in JAMA Oncology and another in JAMA Pediatrics, were retracted last month after Lei himself acknowledged in the notices he had “falsely reported” his degree as a Ph.D. and implying he was an employee at the university when he was not. When he published the letters, he held a bachelor’s degree and was enrolled at Cornell as a master’s student in the School of Professional Studies. The retractions relate to Lei’s false credentials and not the content of the letters. In at least six others Lei published in the past year, he also signs off as a Ph.D., although none of these has been corrected or retracted. 

Lei, who has served as a peer reviewer at Cancer Gene Therapy and the British Medical Journal, said he didn’t understand why Retraction Watch was interested in this case. “I am not entirely clear about the purpose of your inquiry,” he wrote in an email, adding that the retractions involved only author metadata and credentials, not fabrications, falsification or plagiarism. 

Continue reading A student claimed to have a Ph.D. in at least eight letters to journals. Two have been retracted. 

‘Disappointed’: Cochrane journal asked researchers to publish article, then retracted it for conflicts

A developer of an AI tool for conducting literature reviews said he and his team were “excited and honored” when a Cochrane journal had extended a “specific and individual invitation” in January 2025 to submit an article describing their system.

Kevin Kallmes, the chief executive officer at and founder of Nested Knowledge, and five of his colleagues wrote the manuscript and submitted their paper describing the procedure for using AutoLit. They included their affiliations and a note they held equity in the company. Cochrane Evidence Synthesis and Methods published the paper in October.

A few months later, the journal retracted it. 

Continue reading ‘Disappointed’: Cochrane journal asked researchers to publish article, then retracted it for conflicts

Weekend reads: Neuroscientist found not guilty of misconduct; when editors revolt; a Waffle House study walkback 

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 450 entries. The Retraction Watch Database has over 65,000 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.

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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: Neuroscientist found not guilty of misconduct; when editors revolt; a Waffle House study walkback 

‘The exploitation still remains’: Stats journal associate editors resign over $3,000 publishing charge

Eighteen associate editors of the journal Statistics and Computing have announced they will resign after Springer Nature announced the journal would require a fee to publish. 

In a July 8 statement to editor-in-chief Ajay Jasra, the resigning editors cite the publisher’s decision to become fully open access starting in 2027, a move they call “irreconcilable with our vision of science.” According to the journal’s homepage, all submissions from July 1 that end up in the journal will be subject to a $2,990 article processing charge (APC). 

The journal formerly operated as a hybrid model, with optional open access. While the fee to publish OA will remain the same, authors will not have the option to publish for free with their research behind a paywall, unless they qualify for a waiver. Springer Nature offers APC waivers to papers with corresponding authors in low-income areas, according to their website. 

Continue reading ‘The exploitation still remains’: Stats journal associate editors resign over $3,000 publishing charge

Exclusive: Sage to retract multiple articles by dismissed rising star for “compromised” peer-review process

Yannick Griep, a former rising star in management research at Radboud University in the Netherlands, is set to lose an undisclosed number of articles from a journal he once edited, Retraction Watch has learned.

In an email we obtained, Sage’s Isabella Austin told editorial board members of Group & Organization Management that following “a thorough investigation into the concerns about peer-review on this journal,” the publisher found the “objectivity of the peer-review process administered by the former Editor in Chief on a subset of articles where they are co-author was compromised.” Those articles, wrote Austin, would be retracted.

Continue reading Exclusive: Sage to retract multiple articles by dismissed rising star for “compromised” peer-review process

Judge dismisses Splenda lawsuit, says courts wrong place for research debate

Susan Schiffman on WRAL

A North Carolina judge has scrapped a defamation suit by the maker of Splenda against a scientist, ruling the research dispute doesn’t belong in court. 

TC Heartland LLC, which manufactures the artificial sweetener, sued researcher Susan Schiffman in 2023 alleging she made defamatory remarks to the public about the product following a study she authored about sucralose. The paper, published that same year in the Journal of Toxicology and Environmental Health, Part B, found “sucralose to be genotoxic” and called for a review of its regulation. A spokesperson for Taylor & Francis, which publishes the title, told Retraction Watch the article is under investigation. 

The paper does not mention “Splenda,” but TC Heartland claimed Schiffman “relentlessly” disparaged the sweetener during media interviews to “promote” the paper and warned the public it was dangerous to consume, according to the company’s lawsuit. Schiffman, a professor in the department of electrical and computer engineering at North Carolina State University in Raleigh, countersued TC Heartland for defamation after the company created a webpage that challenged her research and “essentially accused her of being a publicity hound,” according to court documents.  

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Springer Nature un-retracts Planck papers, citing “human error”

Max Planck

Today the Retraction Watch list of Nobelists who have retracted papers bids Verabschiedung to Max Planck.

After days of scrutiny, Springer Nature has restored two papers by Planck, who won the Nobel for Physics in 1918, reversing a 2011 decision to retract the articles for “copyright violations.” 

Both articles are back, and now carry the following statement: 

Continue reading Springer Nature un-retracts Planck papers, citing “human error”

Former acting director of national research lab in India adds another retraction

A cancer journal has retracted a paper by a former acting director of an institute in India, bringing her retraction total to nine.

Chitra Mandal, a former senior researcher at the Centre for Scientific and Industrial Research’s Indian Institute of Chemical Biology (CSIR-IIC) at Kolkata, served as acting director in 2014-15. She also headed the CSIR’s Innovation complex between 2010 and 2015. She received multiple awards, and was also appointed a Science and Engineering Research Board Distinguished Fellow in 2018. 

Mandal has now lost nine articles to retraction and more than two dozen of her papers have been flagged on PubPeer, most for image irregularities or data issues in graphs. In March, Wiley’s Molecular Biology International retracted a 2011 article Mandal coauthored, also for image issues. We previously wrote about an expression of concern on a 2016 paper in which Mandal was a co-author. 

The latest retraction involves  a 2011 paper in Leukemia Research about the movement of lymphoblasts from the bone marrow to peripheral blood in childhood leukemia. The journal retracted the paper on May 30, citing concerns that some of the data in figures appear to have been manipulated.

Continue reading Former acting director of national research lab in India adds another retraction