CEBPA and hereditary elliptocytosis: We find that C/EBPα and PPARγ expression are driven by HE diet, short photoperiod or the combination of both in a site-dependent manner; with C/ebpα levels being strikingly inhibited in the subcutaneous adipose tissue while in the visceral adipose tissue, Pparγ was reduced, suggesting that adipocyte differentiation is impaired and driven by different transcription factors under these conditions.