A study by Arriero et al (Circ Res. 2002;90:719–727) contained an instance of duplicate publication, in violation of the journal’s editorial policy (Circulation Research Instructions to Authors, July 12, 2002 issue). Figure 5B, left panel, displayed a gel that had been previously published in at least three other studies (Alonso et al. Mol Cell Biol. 1997;17:5719–5726; Sánchez de Miguel et al. J Vasc Res. 1999;36:201–208; Jimenez et al. Circulation. 2001;104:1822–1830). Moreover, the origin of the materials in the various studies reportedly differed (bovine aortic endothelial cells [Alonso et al. Mol Cell Biol. 1997, and Sánchez de Miguel et al. J Vasc Res. 1999], rabbit aorta [Jimenez et al. Circulation. 2001], and guinea pig pericardium [Arriero et al. Circ Res. 2002]).
In response to this violation of journal policy and American Heart Association standards, the author’s institution has been informed, and editorial sanctions have been imposed by the journal after an investigation including requesting an explanation from the authors.