Nature Communications 5: Article number: 4410 (2014); Published: 15 July 2014; Updated: 21 January 2015

In the key for Fig. 4d in this Article, the labels indicating the Ldlr−/− and Ldlr−/−/Retnla-Tg groups were unintentionally placed next to the wrong symbol. The correct version of Fig. 4 appears below.