Malaria Research and Treatment would like to express concern with the article titled “Protective Effect of Quercetin on Chloroquine-Induced Oxidative Stress and Hepatotoxicity in Mice” published in Malaria Research and Treatment in March 2013 [1], due to figure duplication as raised on PubPeer [2].

In Figure 9, three panels, A–C, contain duplicated strips at the top or bottom of the panel. The authors said they believed this happened during figure preparation and provided a corrected figure with the affected panels cropped to remove the duplication. The editorial board was not satisfied with the response, in part, because similar concerns with image duplication have been raised on the authors’ other articles. We are asking the authors’ institution, Genotoxicity Laboratory, Toxicology Division, CSIR-Central Drug Research Institute (CDRI), Lucknow, to formally investigate.