On the cover: Three-dimensional confocal microscopic image of epididymal adipose tissue from mouse. Lipids in adipocytes are detected by symmetric CH₂ bond signal, using coherent anti-stokes Raman scattering microscopy, and a macrophage is stained with CD11b and CD11c (red and green, respectively; merged signal is presented) and nucleus is counterstained with DAPI (blue). Image courtesy of Yong Geun Jeon and Yul Ji, Department of Biological Sciences, Seoul National University, Seoul, Korea. Their article, “RNF20 Functions as a Transcriptional Coactivator for PPARγ by Promoting NCoR1 Degradation in Adipocytes,” appears in this issue of Diabetes (p. 20).

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