Nat. Med. 18, 926–933 (2012); published online 13 May 2012; corrected after print 6 July 2012

In the version of this article initially published, in Figure 1a, the bar for 3-deoxyglucosone was incorrectly labeled as 3-diacylglycerol. In Figure 6b, the labels for the control and methylglyoxal-treated samples were incorrectly switched. Also, Felix Lasitschka's last name was misspelled as Lasischka. The errors have been corrected in the HTML and PDF versions of the article.