Expression of Concern: Barreto-Torres et al. The Role of PPARα in Metformin-Induced Attenuation of Mitochondrial Dysfunction in Acute Cardiac Ischemia/Reperfusion in Rats. Int. J. Mol. Sci. 2012, 13, 7694–7709

Key Points

• To address concerns over irregularities in images related to the role of PPARα in cardiac protection.
• Review of images in the published article.
• Investigation of potential inconsistencies in Figure 6B,C.
• Identification of apparent irregularities in key figures.
• Call for further scrutiny and validation of findings.