Search Results for: "stem cells"

Two researchers guilty of misconduct, says university investigation

A Swedish university has concluded that two professors studying tissue engineering are guilty of misconduct in two published papers, including a 2012 study in The Lancet. The two researchers are  Suchitra Sumitran-Holgersson and Michael Olausson, both based at the University of Gothenburg. The university investigation — launched after several of Holgersson’s papers were questioned on PubPeer — has … Continue reading Two researchers guilty of misconduct, says university investigation

Macchiarini blames Karolinska for losing data as he retracts 2014 paper

Ask and ye shall receive: A journal has retracted a 2014 paper by Paolo Macchiarini, upon request from the Karolinska Institutet (KI). The latest news is only one step in a long-running saga about former star surgeon Macchiarini, who was dismissed from KI last year. To read more, check out our timeline. KI announced it was … Continue reading Macchiarini blames Karolinska for losing data as he retracts 2014 paper

Two more retractions for stem cell researcher appealing her dismissal

Susana Gonzalez, a rising star in stem cell research, has had a rough year. In addition to being fired from her former research institute (which she is now appealing), one of her grants (totaling nearly 2 million Euros) was suspended. Most recently, she has received two new retractions in Nature Communications over figure duplications and … Continue reading Two more retractions for stem cell researcher appealing her dismissal

Journal pulls paper with missing data, citing inquiry and legal proceedings

A journal has retracted a 2012 paper after the last author was unable to provide material to support the results presented in multiple figures. The lack of supporting data came out during “an internal inquiry and subsequent legal proceedings,” according to the notice, issued by Cell Cycle. The last author on the paper is Susana … Continue reading Journal pulls paper with missing data, citing inquiry and legal proceedings

Weekend reads: Citation cartels; less authorship credit for women; theft by peer reviewers

The week at Retraction Watch featured a discussion of whether peer reviewers should replicate experiments, and a look at whether social psychology really has a retraction problem. Here’s what was happening elsewhere:

Karolinska requests retraction of 2014 Macchiarini paper

It has been a tough couple of years for surgeon Paolo Macchiarini, once lauded for pioneering a groundbreaking procedure to transplant tracheas. After a series of documentaries prompted his former employer, Karolinska Institutet (KI), to reopen a misconduct investigation against him, KI has today released one verdict regarding a 2014 Nature Communications paper: guilty. KI said … Continue reading Karolinska requests retraction of 2014 Macchiarini paper

University of Tokyo opens investigation into retracted stem cell paper

The University of Tokyo is investigating a 2011 stem cell paper in Cell Cycle, recently retracted over irregularities in four figures. The university has confirmed there is an investigation, but would not specify which paper it concerned; the corresponding author on the paper, however, confirmed to us that it is the focus of the investigation. … Continue reading University of Tokyo opens investigation into retracted stem cell paper

Prominent heart researcher dismissed by Ontario university; colleagues appeal

Earlier this month, Morris Karmazyn, an award-winning cardiovascular researcher who’s published hundreds of papers, was called into a meeting with the office of faculty relations at the University of Western Ontario, and terminated. The reason? A series of image problems in some of his papers, raised by a former member of his lab. When Karmazyn, Canada … Continue reading Prominent heart researcher dismissed by Ontario university; colleagues appeal

What do retractions look like in Korean journals?

A new analysis of retractions from Korean journals reveals some interesting trends. For one, the authors found most papers in Korean journals are retracted for duplication (57%), a higher rate than what’s been reported in other studies. The authors also deemed some retractions were “inappropriate” according to guidelines established by the Committee on Publication Ethics (COPE) … Continue reading What do retractions look like in Korean journals?

Macchiarini paper in Nature journal earns expression of concern for data questions

Nature Communications has issued an expression of concern for a 2014 paper by beleaguered surgeon Paolo Macchiarini, citing concerns over whether the paper accurately reports the experiments that were carried out. According to the notice, Macchiarini, a former rising star in the field of transplant medicine, agrees with the expression of concern. Three of his 22 … Continue reading Macchiarini paper in Nature journal earns expression of concern for data questions