Archive for the ‘japan retractions’ Category
The group lost two papers in 2015 for the same reason, following a misconduct investigation at Oita University in Japan. Last year, the same group notched another retraction, and pegged the responsibility for the problematic figures on first author Satoshi Hagiwara.
Now, the group has published a fourth retraction in the European Journal of Pharmacology; the latest notice doesn’t identify a culprit. All four retracted papers list Hagiwara as first author.
The move prompted the journal to also retract an associated News & Views article.
In 2012, John Carlisle, a British anesthesiologist, demonstrated conclusively using statistics that Yoshitaka Fujii had faked data in many studies. Fujii — as followers of this blog well know — now holds the record for most retractions by an individual author (183).
Carlisle’s work accomplished two things: It put to rest any doubt that problems with Fujii’s work might have resulted from innocent mistakes, and it gave journals a mathematical tool for conducting investigations into potential cases of misconduct.
Now comes the payoff. In a new paper, Carlisle and another anesthesiologist, John Loadsman, take aim at one of Fujii’s frequent co-authors, Yuhji Saitoh of Yachiyo Medical Center and Tokyo Women’s Medical University in Japan. The pair analyzed data from 31 studies Saitoh published between 1993 and 2012 — including one study that was rejected in 2015 — for a total of 32 papers. Of those, 23 did not include Fujii as an author.
Journals published by Wiley are retracting four papers by Yoshitaka Fujii, the anesthesiology researcher with the most retracted scientific papers.
Retraction Watch readers will be familiar with Fujii’s case: He currently holds the number one spot on our leaderboard with more than 180 retractions, some of which are pending. (That’s nearly twice the number of retractions by the researcher in the #2 spot, Joachim Boldt.)
Earlier this year, The Breast Journal and The Laryngoscope — both of which are published by Wiley-Blackwell — issued expressions of concern (EOCs) for a total of four papers by Fujii. All four papers were included in a 2012 analysis of 168 of Fujii’s studies by J. B. Carlisle, a consultant anesthetist in the UK, who concluded that the chance of much of Fujii’s data appearing the way it does naturally is
…the chance of selecting one particular atom from all the human bodies on earth.
Now, both journals are retracting the papers.
A Wiley spokesperson told us: Read the rest of this entry »
The University of Tokyo is investigating a 2011 stem cell paper in Cell Cycle, recently retracted over irregularities in four figures.
The university has confirmed there is an investigation, but would not specify which paper it concerned; the corresponding author on the paper, however, confirmed to us that it is the focus of the investigation.
A Springer spokesperson told us all three papers were pulled as a result of “human error.” In two instances, the notices say the editors-in-chief never meant to accept the papers, since the recommendation was to reject.
A new analysis of more than 30 clinical trials co-authored by a bone researcher based in Japan is casting doubt on the legitimacy of the findings.
Yoshihiro Sato, based at Mitate Hospital, has already retracted 12 papers, for reasons ranging from data problems, to including co-authors without their consent, to self-plagiarism. Most of these retracted papers are included in the analysis in the journal Neurology, which concluded that Sato’s 33 randomized clinical trials exhibited patterns that suggest systematic problems with the results.
Other researchers have used similar approaches to analyze a researcher’s body of work — notably, when John Carlisle applied statistical tools to uncover problems in the research of notorious fraudster Yoshitaka Fujii, and Uri Simonsohn, who sniffed out problems with the work of social psychologist Dirk Smeesters.
According to the notice in Frontiers in Genetics, the authors of the paper — based at Hokkaido University in Sapporo, Japan — are conducting further experiments to resolve the issues raised by the journal’s investigation.
In February, the same paper received a corrigendum due to errors in the assembly of one of the figures.
A second paper about a major randomized trial in Japanese patients with heart disease is being retracted, after an investigation reportedly found multiple problems with the paper.
As predicted by Pharma Japan, Hypertension Research is retracting a 2011 paper, already the subject of two errata. Although a spokesperson said she couldn’t say why the paper was being retracted, as the notice was still in production, editor Toshihiko Ishimitsu told us: Read the rest of this entry »
A bone researcher based in Japan with 10 retractions under his belt has retracted two more papers for similar reasons — problems with the underlying data, and including co-authors who didn’t participate in the project.