The isoflavonoid aglycone-rich fractions of Chungkookjang, fermented unsalted soybeans, enhance insulin signaling and peroxisome proliferator-activated receptor-γ activity in vitro. - Kwon,DY.; Jang,JS.; Lee,JE.; Kim,YS.; Shin,DH.; Park,S. (Biofactors, 2006)