Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘image manipulation’ Category

Four more retractions for biomaterials researcher brings total to 7

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Journal of Controlled ReleaseA biomaterials researcher has lost four more papers for figure-related issues such as duplications, bringing his total to seven retractions.

We previously reported on three retractions two by the Journal of Controlled Release (JCR) of papers co-authored by Hossein Hosseinkhani, who is currently based at the National Taiwan University of Science and Technology in Taipei. Now, the JCR is pulling four more studies that list Hosseinkhani as a co-author.

Here’s the retraction notice for “Enhanced expression of plasmid dna – cationized gelatin complex by ultrasound in murine muscle:” Read the rest of this entry »

Ex-Mount Sinai postdoc who falsified 50+ images earns 5-year funding ban

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ori-logoA former postdoctoral researcher at the Mount Sinai School of Medicine in New York has received a five-year funding ban after an investigation concluded that they had falsified data underlying more than 50 images.

According to a report released today by the Office of Research Integrity (ORI), Zhiyu Li falsified Read the rest of this entry »

1st retraction for cancer researcher who doctored data in 11 studies

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LeukemiaA cancer journal has retracted a paper co-authored by a researcher who falsified or fabricated data in 11 studies, according to an investigation by the Office of Research Integrity (ORI).

In December 2015, an ORI probe into the work of Girija Dasmahapatra concluded that he had

…duplicated, reused, and/or relabeled Western blot panels and mouse images and claimed they represented different controls and/or experimental results…

Dasmahapatra left the Virginia Commonwealth University (VCU) in July 2015.

Here’s the retraction notice, issued in April 2016: Read the rest of this entry »

Harvard researcher’s PhD revoked, former group earns three more retractions

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Journal of Biological ChemistryA research fellow at Harvard has lost his PhD from a university in Singapore after being found guilty of falsifying data, and his former group leader’s contract has been terminated by his institution.

But that’s not the whole story. This tangled mess involves not only the Harvard researcher, Sudarsanareddy Lokireddy, and his former boss, Ravi Kambadur at the Nanyang Technological University (NTU) in Singapore, but an as-yet unnamed colleague of theirs who, we’re told, has admitted making up data in three papers, on which Lokireddy and Kambadur are co-authors. Bear with us as we walk you through this tale.

Two of those papers have been retracted by The Journal of Biological Chemistry (JBC); one in Molecular Endocrinology has yet to be pulled. Kambadur, who held joint appointments at the NTU and the Agency for Science, Research and Technology (A*STAR) in Singapore, has now had his contract terminated at both institutions.  Read the rest of this entry »

Authors who lost paper linking fecal transplants to obesity have another retracted

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International Journal of ObesityAn obesity journal has retracted a study by authors who previously lost another paper that suggested a link between the fecal microbiome and obesity.

We first came across on the now-retracted paper in the International Journal of Obesity (IJO) in April when we reported on the authors’ other retraction in Diabetes. The 2014 paper had a corrigendum, published the same year, and also for image-related issues. Since then, however, the journal has pulled the IJO paper and its associated corrigendum at the request of the French National Institute of Agronomic Research (INRA) in Paris. Read the rest of this entry »

Written by Dalmeet Singh Chawla

July 8th, 2016 at 8:00 am

PLOS ONE pulls malaria study for “inappropriate manipulation” of figures

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PLOS OnePLOS ONE has retracted a malaria paper after an institutional investigation found evidence the authors had manipulated multiple figures.

According to the notice, the authors’ institution — the International Centre for Genetic Engineering and Biotechnology (ICGEB) in New Delhi, India — recommended the journal retract the paper.

Here’s the retraction notice, issued by PLOS ONE on June 30: Read the rest of this entry »

Five more retractions for biologist with funding ban brings total to six

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Journal of Cell ScienceAn erstwhile cell biologist has retracted five papers published in the Journal of Cell Science (JCS), all of which had been flagged in a recent investigation by the U.S. Office of Research Integrity (ORI).

The investigation found John Pastorino, previously a cell biologist at Rowan University in New Jersey, guilty of doctoring more than 40 images, resulting in a five-year funding ban.

The probe identified eight papers co-authored by Pastorino, six of which had already received expressions of concern (EOC) — including all of the newly retracted JCS papers. Nataly Shulga is a co-author on all eight papers.

Last week, we reported on the first of the expected retractions of the flagged papers in the Journal of Biological Chemistry.

Here are the retraction notices, which are the same for all five JCS papers: Read the rest of this entry »

Botanist pair’s paper retracted, others questioned on PubPeer

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Plant Science TodayA plant sciences journal has pulled a 2016 paper for manipulated images after the study came under question at PubPeer.

According to the notice, the authors claim that the images were supplied by a “service provider;” the editor-in-chief of the journal told us he doesn’t have any details on this third party’s identity.

The first author of the retracted paper in Plant Science Today Dibyendu Talukdar, from the University of Calcutta in West Bengal, India — has several other papers being questioned on PubPeer. His co-author, Tulika Talukdar, who is based at Acharya Prafulla Chandra Roy Government College in West Bengal, India, according to her ResearchGate page, is a co-author on three of these papers. According to the present paper, however, Tulika Talukdar is affiliated with Raja Peary Mohan College, which is part of the University of Calcutta.

Here’s the retraction notice: Read the rest of this entry »

Written by Dalmeet Singh Chawla

July 5th, 2016 at 2:00 pm

Diabetes researcher logged 1 retraction, 3 correx, after PubPeer comments

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Kathrin Maelder

Kathrin Maedler

A journal has retracted a paper by a leading diabetes researcher — who has also issued three corrections — after questions about her research were raised on PubPeer.

Kathrin Maedler — who works at the University of Bremen in Germany — corrected another paper in 2014. All of the notices are dated from 2015, and all describe issues with figures.

The ongoing comments have led Maedler to carefully look through her original data, according to a statement she emailed us: Read the rest of this entry »

1st retraction for biologist who doctored 40+ images, received funding ban

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JBC CoverThe Journal of Biological Chemistry has retracted a paper that was one of eight flagged in a recent investigation by the Office of Research Integrity (ORI). The investigation — which concluded that a biologist had falsified or fabricated more than 40 images — resulted in a five-year funding ban. 

In May, the ORI announced that John Pastorino, an erstwhile cell biologist at Rowan University in New Jersey, falsified and/or fabricated eight of his published papers (and one unpublished one). Nataly Shulga is a co-author on all eight papers. Six of those eight papers had already received expressions of concern (EOC).

The first retraction to result from the investigation is one of the two published papers that had not been tagged by an EOC. Here’s the retraction notice: Read the rest of this entry »