Penkowa notches fourth retraction, in Experimental Neurology
The new retraction appears in Experimental Neurology. Here’s the notice for “M-CSF deficiency leads to reduced metallothioneins I and II expression and increased tissue damage in the brain stem after 6-aminonicotinamide treatment”:
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).
This article has been retracted at the request of the Drs Hidalgo, Carrasco and Poulsen.
This follows an investigation by the Danish Committee on Scientific Dishonesty (DCSD) into scientific misconduct by Dr Milena Penkowa. This statement (http://www.fi.dk/raad-og-udvalg/udvalgene-vedroerende-videnskabelig-uredelighed/afgoerelser/Afgoerelse%20af%20sag%20om%20mus.%2029.%20august%202012.pdf — in Danish only) from the DCSD is final. Although we as co-investigators were not contacted officially during the investigation, nor in the hearing process, we find it plausible that misleading or incorrect information and data regarding the mice were used in the article, and as such that there is sufficient doubt as to the veracity of the data to warrant this paper’s retraction.
The paper has been cited 14 times, according to Thomson Scientific’s Web of Knowledge.
It is Penkowa’s fourth retraction, and she also has two papers subject to Expressions of Concern. (Two of the retractions were former Expressions of Concern.) Earlier this summer, her co-author on several papers, Bente Klarlund Pedersen, was found by the DCSD to have acted in a “scientifically dishonest” and “grossly negligent” manner.