Category: image manipulation

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

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

Botanist pair’s paper retracted, others questioned on PubPeer

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: Continue reading Botanist pair’s paper retracted, others questioned on PubPeer

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

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: Continue reading Diabetes researcher logged 1 retraction, 3 correx, after PubPeer comments

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

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

Authors pull Mol Cell paper for “inappropriate manipulation” of data

Molecular CellThe authors of a Molecular Cell paper have retracted it due to issues with multiple figures — including one with evidence of “intentional misconduct.”

According to the authors’ institution, IMIM in Barcelona, all co-authors are aware of the retraction. The penultimate author — Antonio García de Herreros — retracted three papers in May from the Journal of Biological Chemistry for reusing images to represent different experiments, and recently corrected multiple figures in a Journal of Cell Science paper over “possible duplications and/or splices.”

Here’s the newest retraction notice: Continue reading Authors pull Mol Cell paper for “inappropriate manipulation” of data

Researcher committed misconduct “recklessly,” says investigation

American Journal of Physiology Renal PhsyiologyA physiology journal has retracted a paper after an institutional investigation found that portions of the work had been falsified by the first author.

According to the notice issued by the American Journal of Physiology – Renal Physiology (AJP), the last author initiated the investigation at the University of Houston in Texas, which found the first author — Mousa Abkhezr — to be guilty of falsifying and duplicating images. 

We’ve obtained a copy of the investigation report, which concluded that Abkhezr committed misconduct “recklessly,” and the paper must be retracted. Although the report noted that Abkhezr argued that the problems stemmed from an honest error, the investigation committee ruled that data from the retracted paper cannot be included in his doctoral thesis.

The last author told us there is a separate ongoing “academic honesty enquiry” into Abkhezr’s dissertation. 

Here’s the retraction notice: Continue reading Researcher committed misconduct “recklessly,” says investigation

Two journals retracting papers from University of Malaya featuring widely criticized figures

The image that excited twitter: Figure 6 from the Scientific Reports paper
The image that excited Twitter

One journal has retracted a paper containing images that recently raised suspicions of obvious duplications, and another journal is planning to do the same.

Scientists first leveled accusations against the newly retracted paper in Scientific Reports, along with two others by the same researchers, earlier this month on Twitter. One other journal — PeerJ — has announced that it plans to retract one of the questioned papers, as well. The third paper, in Frontiers in Pharmacology, bears an expression of concern.

It was unusually quick action on the part of the journals, as well as the authors’ host institution, the University of Malaya, which announced last week the authors had manipulated figures in all three papers, along with one other.

Here’s today’s retraction notice from Scientific Reports for “Novel piperazine core compound induces death in human liver cancer cells: possible pharmacological properties:”

Continue reading Two journals retracting papers from University of Malaya featuring widely criticized figures

Highly cited cancer researcher logs 8th, 9th retractions

Bharat Aggarwal
Bharat Aggarwal

Bharat Aggarwal, a highly cited cancer researcher who retired last year from MD Anderson, has logged two retractions following an investigation into his work, bringing his total to nine.

Aggarwal has threatened to sue us in the past, and told us that MD Anderson has been investigating his work. Earlier this year, Biochemical Pharmacology retracted seven studies of which he is the only common author, noting the “data integrity has become questionable.” Now, he’s earned two more retractions in Molecular Pharmacology, both for “inappropriate” or “unacceptable” image manipulation.

Both of the notices are paywalled (tsk, tsk). Here’s one for “Flavopiridol suppresses tumor necrosis factor-induced activation of activator protein-1, c-Jun N-terminal kinase, p38 mitogen-activated protein kinase (MAPK), p44/p42 MAPK, and Akt, inhibits expression of antiapoptotic gene products, and enhances apoptosis through cytochrome c release and caspase activation in human myeloid cells:” Continue reading Highly cited cancer researcher logs 8th, 9th retractions

Seventh retraction appears for cancer researcher who sued PubPeer commenters

sarkar
Fazlul Sarkar

Fazlul Sarkar, who sued PubPeer commenters for criticizing his work, has logged two more retractions, bringing his total to seven.

The two retractions appear in the Journal of Cellular Physiology, and follow five others released last week by another Wiley journal, Journal of Cellular Biochemistry. All notices mention an investigation at Wayne State University, where Sarkar is on the faculty.

Here’s the notice for “Activated K-Ras and INK4a/Arf Deficiency Promote Aggressiveness of Pancreatic Cancer by Induction of EMT Consistent With Cancer Stem Cell Phenotype:” Continue reading Seventh retraction appears for cancer researcher who sued PubPeer commenters

Researcher suing PubPeer commenters earns 5 retractions following investigation

sarkar
Fazlul Sarkar

An investigation at Wayne State University has prompted five retractions for a scientist who is suing PubPeer commenters after they criticized his work on the site.

The investigation into Fazlul Sarkar and his co-authors found that the papers contain images that were “inappropriately manipulated” or “inappropriately re-used and re-labeled.” All five retraction notices are from the Journal of Cellular Biochemistry.

Here’s the retraction notice for “Concurrent inhibition of NF-κB, cyclooxygenase-2, and epidermal growth factor receptor leads to greater anti-tumor activity in pancreatic cancer:

Continue reading Researcher suing PubPeer commenters earns 5 retractions following investigation