Caught Our Notice: No retraction for “likely fraudulent” study

Title: Homocysteine as a predictive factor for hip fracture in elderly women with Parkinson’s disease What Caught Our Attention:  In a letter to the editor, researchers led by Mark Bolland recently outlined the many reasons why a study by Yoshihiro Sato and colleagues in The American Journal of Medicine was “unreliable,” including evidence that the … Continue reading Caught Our Notice: No retraction for “likely fraudulent” study

University investigation finds misconduct by bone researcher with 23 retractions

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 … Continue reading University investigation finds misconduct by bone researcher with 23 retractions

Bone researcher is up to 17 retractions

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 … Continue reading Bone researcher is up to 17 retractions

JAMA tells readers: “Caution advised.” Here’s why.

Last week, JAMA issued some unusual notices, letting readers know they should use caution when reading an editorial and letters associated with now-retracted articles by a bone researcher in Japan. The notices — for papers by Yoshihiro Sato, now up to 14 retractions — remind readers not to heed the results of the now-retracted papers, … Continue reading JAMA tells readers: “Caution advised.” Here’s why.

Two in 100 clinical trials in eight major journals likely contain inaccurate data: Study

A sweeping analysis of more than 5,000 papers in eight leading medical journals has found compelling evidence of suspect data in roughly 2% of randomized controlled clinical trials in those journals. Although the analysis, by John Carlisle, an anesthetist in the United Kingdom, could not determine whether the concerning data were tainted by misconduct or … Continue reading Two in 100 clinical trials in eight major journals likely contain inaccurate data: Study

A shadow was cast on a bone researcher’s work. What are journals doing about his papers?

Last year, a researcher cast doubt on a bone scientist’s clinical trials, suggesting some of the findings may not be legitimate. So what’s happened since? Since 2015, journals have retracted 14 papers by bone researcher Yoshihiro Sato, based at Mitate Hospital in Japan, for issues ranging from self-plagiarism, to problems with data, to including co-authors without their consent. … Continue reading A shadow was cast on a bone researcher’s work. What are journals doing about his papers?

Fraud by bone researcher takes down two meta-analyses, a clinical trial, and review

The troubles continue for a bone researcher, who’s lost multiple papers in recent months due to problems ranging from data issues to including authors without their consent. Now, journals have retracted two more papers by Yoshihiro Sato. And in a sign of the downstream effects that fraud can have, another journal has retracted two meta-analyses by other … Continue reading Fraud by bone researcher takes down two meta-analyses, a clinical trial, and review

Analysis casts doubt on bone researcher’s body of work

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 … Continue reading Analysis casts doubt on bone researcher’s body of work

Two more retractions bring bone researcher’s total to 12

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. In both notices, Yoshihiro Sato is pegged as responsible for the content of the papers. The newly retracted research covers … Continue reading Two more retractions bring bone researcher’s total to 12

Bone researcher up to 10 retractions

A journal is retracting three papers and a letter from a bone researcher who admitted to scientific misconduct, noting that all co-authors were included only for honorary reasons. We’ve previously reported on six retractions of papers co-authored by Yoshihiro Sato, who is based at Mitate Hospital in Japan, including one in JAMA. Retractions stemmed from the … Continue reading Bone researcher up to 10 retractions