Adipose fibroblast growth factor 21 is up-regulated by peroxisome proliferator-activated receptor gamma and altered metabolic states - Muise, E S; Azzolina, B; Kuo, D W; El-Sherbeini, M; Tan, Y; Yuan, X; Mu, J; Thompson, J R; Berger, J P; Wong, K K (Mol Pharmacol, 2008)