Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘japan retractions’ Category

Researcher at Japan stem cell institute falsified nearly all images in 2017 paper

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Shinya Yamanaka

An investigation by Kyoto University in Japan has found a researcher guilty of falsifying all but one of the figures in a 2017 stem cell paper.

Yesterday, Kyoto University announced that the paper’s first author, Kohei Yamamizu, had fabricated and falsified data in the Stem Cell Reports paper. According to the investigation report, none of the other authors were involved in the data manipulation.

Yamamizu works at the Center for iPS cell Research and Application (CiRA) at Kyoto University, directed by Shinya Yamanaka, a Nobel Prize winner for his pioneering work in stem cell biology.

A spokesperson for the journal told us that the authors disclosed the problems last week and Stem Cell Reports will be retracting the paper, published last February.

In the university’s official statement, Yamanaka said: Read the rest of this entry »

Written by Victoria Stern

January 23rd, 2018 at 10:42 am

University in Japan finds cancer researcher guilty of misconduct

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A university in Japan has found a former professor guilty of falsifying and altering images in four published papers, including a 2014 paper about stem cells.

On Dec. 15, Tottori University announced the results of its misconduct investigation, in which the cancer researcher, Norimasa Miura, confessed to altering images in the four papers.

According to the report, which we translated, Miura resigned as associate professor at Tottori University a month before the investigation concluded in October of this year. Miura had already stopped receiving grant and research funding in May, one month into the six-month investigation. Read the rest of this entry »

Written by Victoria Stern

January 2nd, 2018 at 8:00 am

University in Japan suspends professor one month for plagiarism

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Hyogo University of Teacher Education

A professor at a Japanese teachers college has admitted to plagiarism, according to a university report, and was suspended for one month.

On Nov. 24, Hyogo University of Teacher Education announced the results of a misconduct investigation; according to the report, the professor confessed to plagiarizing in a paper.

We translated the notice and were able to learn a little bit about the investigation. Notably missing: both the professor’s and paper’s names.

Here’s how the investigation happened, according to the report: Read the rest of this entry »

Written by Andrew P. Han

December 27th, 2017 at 8:00 am

University investigation finds misconduct by bone researcher with 23 retractions

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Hirosaki University

As a bone researcher continues to accrue retractions, an investigation at his former university has found misconduct in more than a dozen papers.

On Nov. 15, Japan’s Hirosaki University announced it had identified fabrication and authorship issues in 13 papers by Yoshihiro Sato, and plagiarism in another.

Sato, a professor at Hirosaki University Medical School from 2000 to 2003, died in January. He was last affiliated with Mitate Hospital. Multiple retractions in recent months have pushed Sato higher up our leaderboard; by our count, he now has 23 retractions and the university said there are likely more to come. Read the rest of this entry »

Written by Andrew P. Han

December 6th, 2017 at 8:00 am

Researcher dismissed from university for suspected misconduct denies responsibility

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Masashi Emoto

A university in Japan dismissed a researcher earlier this month after a probe uncovered evidence of image falsification in several of his papers.

The immunology researcher, Masashi Emoto, denied any wrongdoing. He has said that the experiments in question were performed by another researcher and “he was not responsible” for the falsification.

In 2013, Emoto filed a suit against Gunma University, in which he claimed another researcher possessed the raw data for the experiments in question. Emoto requested those documents be returned to him. However, the court determined that Emoto possessed the raw data.

According to the report released by Gunma University on October 11 — without the raw data, the university could not prove Emoto committed the misconduct. However, the university determined that, as the corresponding author on the four papers, Emoto was responsible for the work.

According to our English version of the report, which we translated from Japanese using One Hour Translation, the committee concluded: Read the rest of this entry »

Written by Victoria Stern

October 31st, 2017 at 11:00 am

Researcher apologizes for ignoring early warnings about earthquake data

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In 2016, three researchers published data they had collected on a series of devastating earthquakes that hit Japan earlier that year.

But, in late September 2017, one of the authors—Hiroyuki Goto—revealed that the Kumamoto Earthquake data contained “wide reaching errors”—and an outside expert had warned him the data might be problematic nine months earlier.  

Goto, an associate professor in the Disaster Prevention Research Institute at Kyoto University, issued two statements in which he acknowledged the errors, but did not indicate how they occurred. According to The Japan Times, Japan’s Ministry of Education, Culture, Sports, Science and Technology is investigating whether the data “was falsified or fabricated due to inconsistencies with other readings taken nearby.” A report in another Japanese paper, The Mainichi, notes that Osaka University—where one of the authors, Yoshiya Hata, works—is looking into the matter as well.

Read the rest of this entry »

Written by Victoria Stern

October 18th, 2017 at 8:52 am

Society recommends 9 retractions for co-author of researcher with record number of retractions

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The Japanese Society of Anesthesiologists (JSA) has requested the retraction of nine additional papers by a co-author of fraudster Yoshitaka Fujii, after investigating allegations of fraud in dozens of papers.

According to the report, a committee investigated approximately 40 publications by Yuhji Saitoh of Yachiyo Medical Center and Tokyo Women’s Medical University and “identified ten publications with clear ethics violations, one of which has already been retracted.”

Saitoh has collaborated on many papers with Fujii, an anesthesia researcher with more than 180 retractions. As we reported, Saitoh resigned from the JSA when the investigation began, and the society permanently banned him. Read the rest of this entry »

Written by Victoria Stern

October 9th, 2017 at 8:10 am

Case report of stem cell therapy in child didn’t meet “ethical standards,” says journal

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A journal has retracted a recent case report about a stem cell therapy in a child with cerebral palsy, after discovering the study failed to meet “ethical standards.”

According to the journal, Regenerative Medicine, the ethical issue is that the authors failed to report the case to the Ministry of Health, Labor and Welfare of Japan, which violates the country’s guidelines for conducting stem cell research. Unfortunately, we don’t know much more than that about what happened.

Laura Dormer, editorial director of Future Science Group, which publishes Regenerative Medicine, explained that the paper’s first author, Masato Kantake, requested the retraction because: Read the rest of this entry »

Bone researcher is up to 17 retractions

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A bone researcher has lost three more papers for scientific misconduct.

The new retractions bring Yoshihiro Sato’s total to 17 and put him on our Leaderboard.

According to the retraction notices, Sato asked the Journal of Neurology, Neurosurgery, and Psychiatry to retract three of his papers “due to scientific misconduct.” In the letter, Sato—who is corresponding author on all three papers—explained he included co-authors without their consent and that none of the other authors listed worked on the study or article.

In May, the editors issued expressions of concern while they investigated (1, 2, 3), and last month, the journal retracted the three articles.

Here’s the retraction notice for “Amelioration of osteopenia and hypovitaminosis D by 1alpha-hydroxyvitamin D3 in elderly patients with Parkinson’s disease:” Read the rest of this entry »

Authors retract Science paper after investigation reveals manipulated images

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Researchers at a prominent Japanese university have retracted a 2015 paper in Science, after an investigation uncovered image falsification and fabrication.

Last September, the University of Tokyo began an investigation of seven papers from the lab of cell biologist Yoshinori Watanabe after receiving anonymous allegations. In May 2017, the university determined that five papers contained falsified or fabricated images, and announced the results of its investigation on August 1. Two of the papers were published in Science, two in Nature and one in EMBO Reports.

On July 1 2017, EMBO Reports issued an erratum to the 2011 paper flagged in the investigation, correcting issues in several figures. Here’s the retraction notice for “The inner centromere–shugoshin network prevents chromosomal instability,” the 2015 paper in Science and the first of the papers to be retracted: Read the rest of this entry »

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