4.2.1.17 down a proteomic approach is applied to examine the effect of high fat diet on the liver proteome during the progression of nonalcoholic fatty liver disease. Male rats fed an high-fat diet for 4, 12, and 24 weeks show a reduced protein level of ECHS1 702229 4.2.1.17 down ECHS1 expression level in patients with simple steatosis is reduced 702229 4.2.1.17 down ECHS1 is downregulated by 4-amino-5-(4-chlorophenyl)-7-(t-butyl)pyrazolo[3,4-d]pyrimidine, i.e. PP2, that induces apoptosis in breast cancer MCF-7 cells 715023