- Zhou Y, Jia X, Qin J, Lu C, Zhu H, Li X, et al. Leptin inhibits PPARgamma gene expression in hepatic stellate cells in the mouse model of liver damage. Mol Cell Endocrinol. 2010;323:193-200 pubmed publisher..The in vivo findings from this report might provide additional insights into the mechanisms underlying the profibrogenic action of leptin in liver. ..