Category: misconduct investigations

UConn resveratrol researcher Dipak Das fingered in sweeping misconduct case

Das, via UConn

The University of Connecticut, in what clearly seems like an attempt to get ahead of damaging news, has announced an “extensive” investigation into research misconduct involving one of its scientists, Dipak K. Das.

According to a press release, the university has notified 11 journals that published Das’ work about the alleged fraud. One area of interest for Das, a government-funded professor of surgery and director of the Cardiovascular Research Center, has been resveratrol, a substance in red wine that has allegedly been linked to improved cardiac health.

The university touted some of his early efforts in this field.

[Please also see our update posted Thursday.]

Here’s what the release has to say: Continue reading UConn resveratrol researcher Dipak Das fingered in sweeping misconduct case

Blood retracts stem cell paper from Amy Wagers’ Harvard lab after 14 months of concern

More than 14 months after Blood issued a notice of concern about a paper by a Harvard stem cell scientist and her former post-doc, the journal has retracted the article.

Here’s the notice for the paper, “Osteolineage niche cells initiate hematopoietic stem cell mobilization,” by Shane Mayack and Amy Wagers: Continue reading Blood retracts stem cell paper from Amy Wagers’ Harvard lab after 14 months of concern

Cardiff University misconduct investigation leads to Journal of Immunology retraction

The senior author of a Journal of Immunology paper has retracted it after a university investigation found that he had inappropriately manipulated images, Retraction Watch has learned.

Here’s the notice: Continue reading Cardiff University misconduct investigation leads to Journal of Immunology retraction

Retraction comes as death of PI leads to lost records

The Journal of Experimental Medicine has retracted a 2011 article after the principal investigator’s home institution suggested that the PI might have manipulated his data. Complicating matters, the PI in this case died two weeks after the paper appeared and his notes have gone missing — making an affirmative declaration of fraud or honest error difficult.

Here’s the notice: Continue reading Retraction comes as death of PI leads to lost records

Cancer journal retracts herbal medicine paper, citing misconduct probe

The journal Cancer Prevention Research has retracted a 2009 article by a group of scientists from the University of Kentucky after the institution determined that one of the figures in the article wasn’t kosher.

The article, “Psoralidin, an Herbal Molecule, Inhibits Phosphatidylinositol 3-Kinase–Mediated Akt Signaling in Androgen-Independent Prostate Cancer Cells,” has been cited 9 times, according to Thomson Scientific’s Web of Knowledge. Earlier iterations of the research were presented at two cancer meetings in 2008.

Continue reading Cancer journal retracts herbal medicine paper, citing misconduct probe

National University of Singapore official who co-authored Melendez papers won’t be part of investigation

Barry Halliwell, courtesy NUS

The Alirio Melendez case is likely to become quite complicated, as the National University of Singapore (NUS) looks into about 70 papers by the researcher whose work has already been the subject of a retraction and Expression of Concern. One such wrinkle seemed to have already surfaced when a blog called the Gigamole Diaries pointed out last week that an NUS dean apparently connected to the investigation had co-authored two papers with Melendez:

…the authorship list for Melendez papers reads almost like a Who’s Who in the medical school, and includes heads of departments, Vice Deans and prominent individuals in the office of the NUS Vice President. Interestingly Prof Barry Halliwell, who is NUS Deputy President (Research and Technology), and who has been cited as fronting the investigation into the Melendez publications is himself associated with at least 2 Melendez publications.

We checked with Halliwell, who has indeed spoken to numerous media outlets about the investigation. He tells us: Continue reading National University of Singapore official who co-authored Melendez papers won’t be part of investigation

70 papers by Alirio Melendez under investigation: report

Alirio Melendez

The National University of Singapore (NUS) is reviewing about 70 papers by Alirio Melendez, a once-promising researcher whom, as we’ve reported, has been forced to retract a paper in Nature Immunology and has another paper in Science subject to an Expression of Concern.

The Straits Times, which reported the NUS investigation this weekend, says Melendez’ former team is cooperating:

In Singapore, the eight researchers involved include scientists, academics, research fellows and students from NUS and DSO National Laboratories. DSO and the personnel involved are assisting the university in its investigation.

The story continues: Continue reading 70 papers by Alirio Melendez under investigation: report

Does a new retraction suggest a glimmer of hope for transparency at the Journal of Neuroscience?

Believe it or not, we look for policies to praise here at Retraction Watch HQ, especially if they mark a change from approaches that we and others have criticized. So we were heartened to read this retraction notice in The Journal of Neuroscience for “Lmx1b-Controlled Isthmic Organizer Is Essential for Development of Midbrain Dopaminergic Neurons:”

The Journal of Neuroscience has received a report describing an investigation by the Shanghai Institute of Biological Sciences, Chinese Academy of Sciences, which found major data misrepresentation in the article by Guo et al. Because the results cannot be considered reliable, The Journal is retracting the paper.

The study has been cited five times since it was published in 2008, according to Thomson Scientific’s Web of Knowledge. Here’s some background on why we thought we’d have something to praise, from a Nature feature this week on retractions: Continue reading Does a new retraction suggest a glimmer of hope for transparency at the Journal of Neuroscience?

Science issues Expression of Concern over already-corrected Melendez-Puneet paper

Two weeks ago, we posted on a Nature Immunology retraction by a group that had earlier published a correction to figures in a Science paper. At the time, many readers suggested there was more to this story — and we had the same hunch.

Turns out those hunches were right.

Today, Science issued an “Expression of Concern” about the paper they’ve already corrected: Continue reading Science issues Expression of Concern over already-corrected Melendez-Puneet paper

Cal Poly Pomona education researcher leaves post after rampant plagiarism is revealed

In late June, we wrote about a case of wholesale plagiarism involving an education researcher in California, Thienhuong N. Hoang. Our post prompted a flurry of emails from readers cluing us in to other cases in which Hoang, of California State Polytechnic University in Pomona, had lifted essentially entire articles from other scholars and changed little, if anything, but the author information.

For example, Hoang’s “‘The Contributions of Teachers’ Credentialing Routes and Experience Levels on Classroom Management,” in the January 2009 issue of the International Journal of Instruction, was the same, nearly word-for-word, as the work of two other authors, “Exploring the relationship between certification sources, experience levels, and classroom management orientations of classroom teachers,” published in Teaching and Teacher Education in 2007.

The International Journal of Instruction has removed the article from its archive and placed this announcement on its site: Continue reading Cal Poly Pomona education researcher leaves post after rampant plagiarism is revealed