Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘endocrinology’ Category

Shigeaki Kato up to 33 retractions, with five papers cited a total of 450 times

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Shigeaki Kato

Shigeaki Kato

Former University of Tokyo researcher Shigeaki Kato continues to put big numbers on the board.

Last month, we reported on his 26th, 27th, and 28th retractions, all in Nature Cell Biology and cited close to 700 times. Yesterday, EMBO Journal and EMBO Reports published a total of five more retractions for the endocrinology researcher, who resigned from the university in 2012 following investigations found he had faked images.

Here’s the notice for “A cell cycle-dependent co-repressor mediates photoreceptor cell-specific nuclear receptor function:” Read the rest of this entry »

Cancer researcher has correction upgraded to retraction

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mol endo coverRakesh Kumar, a researcher with six recent corrections and one retraction, has had one of those corrections upgraded to a retraction.

Here’s the unhelpful notice, from Molecular Endocrinology: Read the rest of this entry »

Researcher with 25 retractions covered up other fraud, says university

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Shigeaki Kato

Shigeaki Kato

The Japanese endocrinology researcher Shigeaki Kato, with at least 25 retractions to his name, is alleged to have been the ringleader of a scheme to cover up other research misconduct at the University of Tokyo, his former employer, which investigated the activity.

According to the Japan Times, Kato and three other colleagues took steps to hide evidence of image manipulation in five of 51 theses between 1996 and 2011: Read the rest of this entry »

Written by amarcus41

August 6th, 2014 at 11:00 am

Shigeaki Kato up to 25 retractions

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Shigeaki Kato

Shigeaki Kato

Shigeaki Kato, who resigned from the University of Tokyo in 2012 after being found to have inappropriately manipulated dozens of images, has two more retractions, both in Molecular Cell.

Here’s the notice for 2002’s “Nuclear Receptor Function Requires a TFTC-Type Histone Acetyl Transferase Complex:” Read the rest of this entry »

Penkowa-Pedersen paper retracted nearly three years after being subjected to Notice of Concern

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faseb journalWe have an update on the complicated story of Milena Penkowa and Bente Klarlund Pedersen.

Two papers coauthored by the pair — who have both been found guilty of scientific dishonesty by the Danish Committees on Scientific Dishonesty — have been retracted by the FASEB Journal.

Here’s one notice (both are unfortunately behind a paywall): Read the rest of this entry »

Shigeaki Kato up to 23 retractions

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katoShigeaki Kato, the former University of Tokyo endocrinology researcher found to have manipulated images in dozens of papers, has six more retractions, bringing his total to 23.

Five of them appear in Molecular and Cellular Biology: Read the rest of this entry »

Misconduct at Oxford prompts retraction of insulin paper

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cellmetabcoverCell Metabolism has retracted a 2006 article by a group of researchers at Oxford in England after an investigation concluded that the first author had committed misconduct.

The paper, “Nicotinamide nucleotide transhydrogenase: A key role in insulin secretion,” came from the lab of Frances Ashcroft, a world-renowned expert on ion channels. (We’ve written about Ashcroft’s lab before.)

According to the abstract: Read the rest of this entry »

Written by amarcus41

February 5th, 2014 at 10:32 am

Researcher who called plagiarism “the worst type of fraud” retracts paper for…plagiarism

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arq brasAs a reporter on the police beat many years ago, one of us (Adam) used to hang out with a press officer whose desk at the station had the following sign: “Uma boca fechado não recolhe nenhum pé.”

At least, that’s what it would have been had we been in Rio. In Palmer Park, Maryland, the sign read: “A Closed Mouth Gathers No Foot.”

A group of Brazilian researchers has retracted their 2009 article on gut bacteria for plagiarism — but not before one of them decried such behavior as the nadir of scientific misconduct. Read the rest of this entry »

Written by amarcus41

January 15th, 2014 at 9:30 am

Five more retractions appear for Shigeaki Kato

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katoShigeaki Kato, the former University of Tokyo endocrinology researcher who resigned in 2012 and has retracted at least ten papers, by our count, has five more retractions.

Here are the papers, all in the Journal of Biological Chemistry (JBC): Read the rest of this entry »

Shigeaki Kato notches five more retractions, including one in Nature

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katoShikeagi Kato, an endocrinology researcher who resigned from the University of Tokyo in March 2012 amid an investigation that concluded 43 of his papers should be retracted, has retracted five more papers.

The newest is in this week’s Nature, for “GlcNAcylation of a histone methyltransferase in retinoic-acid-induced granulopoiesis,” a paper first published in 2009. Here’s the notice: Read the rest of this entry »