Retraction Watch

Tracking retractions as a window into the scientific process

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Late resveratrol researcher Dipak Das manages to revise and publish paper from the grave

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Das, via UConn

Das, via UConn

Follow this timeline, if you would:

  • August 14, 2013: Former UConn researcher Dipak Das, who was found to have committed misconduct, submits a paper to Oxidative Medicine and Cellular Longevity.
  • September 19, 2013: Das dies.
  • October 17, 2013: Das submits revisions to his paper in Oxidative Medicine and Cellular Longevity.
  • October 18, 2013: Paper accepted.
  • January 12, 2014: Paper published.

That would appear to be what the timeline on the paper — which lists Das as corresponding author, along with a Gmail address — says:

Read the rest of this entry »

Written by Ivan Oransky

April 3rd, 2014 at 10:00 am

Late resveratrol researcher Dipak Das up to 20 retractions

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Das, via UConn

Das, via UConn

Dipak Das, the former University of Connecticut researcher found to have committed more than 100 counts of misconduct, and who passed away last year, has had another retraction appear.

Here’s the notice, for “Dynamic Action of Carotenoids in Cardioprotection and Maintenance of Cardiac Health,” from Molecules:

Read the rest of this entry »

Written by Ivan Oransky

March 27th, 2014 at 9:10 am

Dipak Das dies at 67

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Das, via UConn

Das, via UConn

Dipak Das, the resveratrol researcher who had 19 papers retracted following findings of misconduct by the University of Connecticut, has died at the age of 67.

Das died on September 19, according to an obituary posted to the Hartford Courant‘s website. The obituary does not give a cause of death. Read the rest of this entry »

Written by Ivan Oransky

October 4th, 2013 at 8:30 am

Posted in dipak das

Catching up: OSU “missed fraud,” Dipak Das lost tenured professorship, Ivan on NPR’s Science Friday

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Terry Elton, via OSU

Terry Elton, via OSU

We have a few follow-ups from stories we’ve recently covered:

Terry Elton case initially chalked up to “disorganization,” not misconduct

Ohio State University (OSU), which along with the Office of Research Integrity (ORI) recently sanctioned a pharmacy professor for image manipulation, “failed at first to recognize his deception,” according to an investigation by The Columbus Dispatch based on university documents.

The piece, which quotes Ivan, reveals that OSU needed some prompting from the ORI before it concluded that Terry Elton was guilty of misconduct, and not just unintentional errors that he at one point blamed on a research technician who lost her job in October 2011: Read the rest of this entry »

Written by Ivan Oransky

January 6th, 2013 at 9:52 am

Odd: Retractions 18 and 19 for Dipak Das, and a new paper in the same journal, as if nothing were amiss

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Dipak Das, the resveratrol researcher found guilty of more than 100 counts of misconduct by the University of Connecticut, has two more retractions for his resume. But that’s not the most interesting part of this post, so keep reading after the notices.

Both retractions appeared in the October 2012 issue of the Journal of Cellular and Molecular Medicine. Here’s the first notice: Read the rest of this entry »

Retraction count for Dipak Das rises to 17

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We have four more retractions by Dipak Das, the disgraced UConn researcher found by the university to have committed 145 counts of misconduct. All appear in the Journal of Molecular and Cellular Cardiology (we left the journal off when we initially posted, as commenters noted):

Redox regulation of angiotensin II preconditioning of the myocardium requires MAP kinase signaling,” cited 28 times, according to Thomson Scientific’s Web of Knowledge:
Read the rest of this entry »

Seeing red (wine): Another retraction for Dipak Das, making count 13

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Today’s Retraction Watch, to paraphrase Sesame Street, is brought to you by the number 13.

Earlier, we reported on several retractions from Diederik Stapel that bring his total to that number, and now we’ve learned about number 13 for Dipak Das. Das is of course the UConn researcher who was found to have committed 145 counts of misconduct in his studies of the red wine compound resveratrol and other subjects.

Here’s the notice, from The Journal of Nutritional Biochemistry, for “Resveratrol, a unique phytoalexin present in red wine, delivers either survival signal or death signal to the ischemic myocardium depending on dose:” Read the rest of this entry »

Retraction count for resveratrol researcher Dipak Das rises to 12

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Das, via UConn

Dipak Das, the UConn researcher whom the university earlier ths year found to have fabricated or falsified data more than 100 times, has four more retractions to his name.

The notices appear in the June 1, 2012 issue of the American Journal of Physiology: Heart and Circulatory Physiology, and suggest that Das was not all that cooperative: Read the rest of this entry »

Three more retractions for resveratrol researcher Dipak Das, in free radical journals

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Das, via UConn

The retraction count for Dipak Das, the resveratrol researcher whom the University of Connecticut found to have committed 145 counts of fabrication and falsification of data, has risen to eight with withdrawals by Free Radical Biology & Medicine and Free Radical Research.

The two Free Radical Biology & Medicine retractions, for “Expression of the longevity proteins by both red and white wines and their cardioprotective components, resveratrol, tyrosol, and hydroxytyrosol” (cited 38 times, according to Thomson Scientific’s Web of Knowledge) and “Redox regulation of resveratrol-mediated switching of death signal into survival signal” (cited 32 times), are carefully detailed and read the same way: Read the rest of this entry »

Hold the broccoli, garlic, and wine: Three Dipak Das retractions appear in Journal of Agricultural and Food Chemistry

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The Journal of Agricultural and Food Chemistry has retracted three papers by Dipak Das, the resveratrol researcher found to have committed more than 100 counts of fraud by the University of Connecticut.

Journal editor James Seiber writes: Read the rest of this entry »

Written by Ivan Oransky

March 15th, 2012 at 11:22 am