The Journal Editors and Sage Publications hereby issue an expression of concern for the following article:
Kanda M, Nagai T, Kondo N, et al. Pericardial Grafting of Cardiac Progenitor Cells in Self-Assembling Peptide Scaffold Improves Cardiac Function After Myocardial Infarction. Cell Transplantation. 2023;32. doi:10.1177/09636897231174078
Sage was contacted by a reader who is listed as co-author on the article referenced above. The reader asked to be removed as an author and expressed doubts about the validity of the article findings. Sage has contacted the institution where the research was conducted to investigate the concerns about the article experiments. As the methods of the experiment have not been verified, the Journal Editors and Sage issue this expression of concern to alert readers. This expression of concern will remain in place until further evidence is provided to Sage.