Category: clinical study retractions

Resveratrol fraud case update: Dipak Das loses editor’s chair, lawyer issues statement refuting all charges

Das, via UConn

Many Retraction Watch readers will now be familiar with the case of Dipak Das, the resveratrol researcher about whom the University of Connecticut issued a voluminous report yesterday — summary here — detailing 145 counts of data fabrication and falsification. This has been a fast-moving story, so we wanted to highlight a number of updates to our original post, and offer a few more.

First, we have confirmed with publisher Mary Ann Liebert this morning that Das has been relieved of his duties as co-editor in chief of Antioxidants & Redox Signaling. He had shared that post with Chandan Sen, and his name as been removed from the masthead of that journal. Here’s a statement from the publisher: Continue reading Resveratrol fraud case update: Dipak Das loses editor’s chair, lawyer issues statement refuting all charges

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

Eye of the needle? Paper about camels gets rejected, then published, then retracted

photo by http://www.flickr.com/photos/bysheribeari/ via Flickr

If there’s one thing worse than having your paper rejected by a journal, it’s having it retracted. But usually a paper has to be accepted before it’s published and withdrawn.

Not so for a study from the United Arab Emirates, “Detection and genotyping of GB virus-C in dromedary camels in the United Arab Emirates,” published in 2010 in Veterinary Microbiology.

The editors of the journal ruminated — hey now! is this thing on? — on the paper,  only to give it the thumbs down. But come to find out, it got published anyway. Thus, the following retraction notice, which appeared online last month: Continue reading Eye of the needle? Paper about camels gets rejected, then published, then retracted

Potti and colleagues retract 2008 JAMA paper

Anil Potti‘s retraction count is now eight with the withdrawal of a 2008 study in the Journal of the American Medical Association (JAMA).

Here’s the notice, which appeared online in JAMA sometime yesterday: Continue reading Potti and colleagues retract 2008 JAMA paper

JCO retracts article from major French cancer group over apparent plagiarism

David Khayat

The Journal of Clinical Oncology (JCO) has retracted a November 2011 editorial by a group of French cancer researchers, including David Khayat, the former head of that country’s National Cancer Institute, over what appears to be fairly extensive plagiarism.

Here’s the notice for the article, “Lymphocyte Infiltration in Breast Cancer: A Key Prognostic Factor That Should Not Be Ignored:” Continue reading JCO retracts article from major French cancer group over apparent plagiarism

Cancer issues expression of concern about two Henschke I-ELCAP lung cancer screening papers

The journal Cancer has issued an Expression of Concern about two lung cancer screening papers long dogged by doubt.

Last April, The Cancer Letter and The New York Times jointly published an investigation into the International Early Lung Cancer Action Program (I-ELCAP) run by Claudia Henschke and David Yankelevitz. Other researchers had already criticized the design and conclusions of that trial, but as the investigation noted, an October 2008 review of the study found that the researchers couldn’t find 90 percent of the subjects’ consent forms, an ethical no-no that jeopardizes as many as 135 papers.

Two papers published in Cancer, in 2000 and 2001, are among those studies, according to the notice (links added), which credits the Times and The Cancer Letter and notes that the journal has referred the case to Federal investigators: Continue reading Cancer issues expression of concern about two Henschke I-ELCAP lung cancer screening papers

Hopkins scientists retract prostate cancer screening study at center of 2009 lawsuits

The authors of a study in Urology that was at the center of two 2009 lawsuits brought by a company that funded the work have retracted the paper.

The idea behind the research — by Robert Getzenberg and colleagues at Johns Hopkins — was to find an alternative to the prostate specific antigen (PSA) test, which many urologists recommend, but which many groups — including the US Preventive Services Task Force — find wanting. The work gave rise to a company, Onconome, Science reported in a 2009 story about the lawsuits: Continue reading Hopkins scientists retract prostate cancer screening study at center of 2009 lawsuits

Another Hattori retraction over reused figure from cardiology pub

Another paper in Diabetologia by Yoshiyuki Hattori has been retracted for image duplication, marking the second of his articles in the journal to be pulled for that reason.

The notice for the article, “A glucagon-like peptide-1 (GLP-1) analogue, liraglutide, upregulates nitric oxide production and exerts anti-inflammatory action in endothelial cells,” states: Continue reading Another Hattori retraction over reused figure from cardiology pub

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

Duplication earns German HIV researchers a retraction, and a 3-year publishing ban

An HIV researcher in Germany has run afoul of a number of journals because he duplicated his papers in multiple outlets.

The funny business by Ulrich Hengge earned him a 3-year ban on publishing in two journals, the Journal of Molecular Medicine (JMM) and Cells, Tissues and Organs (CTO). (We’ve written about publishing bans — which appear to be fairly rare — before.)

Those journals also sanctioned one of his co-authors, Alireza Mirmohammadsadegh. The JMM’s managing editor, Christiane Nolte, told us by email: Continue reading Duplication earns German HIV researchers a retraction, and a 3-year publishing ban