PPARA and endometrial cancer: Positive PPAR (-α, -β, -γ) immunohistochemical staining was detected in normal endometrial mucosa (for PPAR α: 57%, PPAR β: 55%, and PPARγ: 61%) as well as in endometrial cancers (for PPARα: 78%; PPARβ: 77%; PPARγ: 84%) (Figure 1).