text: Of the compounds active in the present assay system, the most potent compound 7, platyphyllonol-5-O-β-d-xylopyranoside, significantly suppressed the induction of peroxisome proliferator activated receptor γ (PPARγ and CCAAT/enhancer binding protein α (C/EBPα) protein expression, and inhibited adipocyte differentiation induced by << troglitazone >>, a [[ PPARγ ]] agonist.