SAGE hereby issues an expression of concern for the following research article:
Darlington D, Li S, Hou H, et al. Human Umbilical Cord Blood-Derived Monocytes Improve Cognitive Deficits and Reduce Amyloid-β Pathology in PSAPP Mice. Cell Transplantation. November 2015:2237-2250. doi:10.3727/096368915X688894
Following concerns posted on Pub Peer, SAGE would like to alert readers to a potential image manipulation with duplicated elements within the Figure 5B panels. We would also like to acknowledge that Dr. Paul Sanberg, the Co-Editor in Chief of Cell Transplantation, is a co-founder of Saneron and this should have been noted in a Conflict-of-Interest statement. The corresponding author did not respond to publisher requests for comment.
The remaining authors noted that the corresponding author has access to all of the data underlying the findings in this article and were unable to comment on the concerns raised.
The Editors and SAGE strive to uphold the very highest standards of publication ethics and are committed to supporting the high standards of integrity of Cell Transplantation. Authors, reviewers, editors and interested readers should consult the ethics section of SAGE and the Committee on Publication Ethics (COPE) website for guidelines on publication ethics.
We were unable to reach the following authors: Li S, Tian J, Tan J.