Second retraction arrives in Alirio Melendez case
Alirio Melendez, whose former employer, the National University of Singapore, is investigating about 70 of his papers, has retracted a second study. Here’s the notice for the 2010 Journal of Molecular Cell Biology paper, ”Sphingosine-1-phosphate mediates proliferation maintaining the multipotency of human Adult Bone Marrow and Adipose Tissue-derived Stem Cells:”
This paper has been retracted by its authors and the journal’s Editor-in-Chief because irregularities have been identified in some of the figures that render two of its major conclusions unsound: (1) that both human AD-MSCs and BM-MSCs express all of the five S1P-receptors; and (2) that no significant changes were observed in cells grown under the different culture conditions.
The study has been cited three times, according to Thomson Scientific’s Web of Knowledge.
Hat tip: “Clare Francis”