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Unexplained abnormalities in stem cells prompt Columbia researchers to pull diabetes paper

Researchers at Columbia University have retracted a 2013 paper in The Journal of Clinical Investigation, after uncovering abnormalities in the stem cell lines that undermined the conclusions in the paper. Last year, corresponding author Dieter Egli discovered he could not reproduce key data in the 2013 paper because almost all the cell lines first author Haiqing Hua used […]

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Coauthor’s past misconduct prompts dep’t chair to retract Diabetes study

A department chair of a Swedish university asked to retract a 2010 study in Diabetes after none of the authors could explain image-related ambiguities. The matter prompted particular attention because the paper’s first author, Pontus Almer Boström, had been found guilty of scientific misconduct by the University of Gothenburg in 2012, after Jan Borén noted some irregularities in […]

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Researcher sued to stop retractions; he just earned two more and is now up to 11

The notices keep coming for diabetes researcher Mario Saad. Diabetes has just retracted two more of his papers, both of which had been flagged by expressions of concern, citing problems with duplications. What’s more, the journal added another expression of concern to a 2009 paper on which Saad — based at the University of Campinas […]

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Prominent Harvard researcher issues second retraction, again citing duplication

The former president of the Joslin Diabetes Center has withdrawn a second article within a month of his first, and issued extensive corrections to another paper in the same journal, all due to figure errors. In November, we reported that Carl Ronald Kahn — also affiliated with Harvard Medical School — had pulled a highly cited 2005 […]

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Real time blood glucose levels on Apple Watch

Made a storify of a discussion from Twitter. Loving my new Apple Watch with real time glucose values via my Dexcom CGM.

Harvard biologist retracts diabetes breakthrough in Cell

2013 probably felt like it was going to be a great year for stem cell biologist Douglas Melton at Harvard. He had published a buzz-worthy paper in Cell about a new way to potentially boost insulin in diabetics, attracting significant media attention, and eventually gathering nearly 200 citations. But 2016 is closing out on a less […]

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Researcher logs three retractions for image duplications — two of which with familiar co-authors

A researcher in Brazil is taking responsibility for accidentally mixing up images in three papers in the Journal of Biological Chemistry. The corresponding author on the three papers told us the mistake happened because the studies were conducted simultaneously, and relied on one computer. There’s a side note to these retractions: The co-author list on […]

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Bone researcher with lifetime funding ban earns third retraction

A researcher who received a lifetime funding ban for misconduct from a Canadian agency has logged her third retraction, after a re-analysis of her work unveiled “serious inconsistencies.” In July, the Canadian Institutes of Health Research (CIHR) released a report about Sophie Jamal, following an investigation by her former employer, The Women’s College Hospital in Toronto, Canada. […]

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Diabetes researcher loses prestigious professorship

The German Research Foundation (DFG) has announced today that it is withdrawing a professorship it awarded leading diabetes researcher Kathrin Maedler in 2014. In recent years, Maedler — based at the University of Bremen in Germany — has faced questions about her work, including allegations of duplication and image manipulation. So far, she has issued one retraction, […]

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Authors pull two papers about faulty glucose meters after industry prompts

Two papers evaluating glucose meters — used by diabetics to monitor blood sugar levels — suggested that a couple of the devices don’t work as well as they should. Perhaps unsurprisingly, the companies that sell those meters objected to how the studies were conducted. By all accounts, the companies appear to be justified in their complaints. In both cases, […]

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