https://www.selleckchem.com/products/VX-680(MK-0457).html 35 ± 15.76 (P less then 0.05), respectively, which were significantly higher than the normal control group PDFF (2.39% ± 0.50%, 2.45% ± 0.45%, 3.26% ± 0.80%) and R2* (48.93 ± 7.90, 54.71 ± 5.91, 64.25 ± 15.76). Additionally, with the disease progression, R2 * had gradually increased, which was consistent with the NHI trend in liver tissue homogenates of each group. Conclusion MRI, as a non-invasive quantitative method, can accurately assess liver fat and iron content in fatty liver disease, and with the degree of severity of fat changes, iron deposits tend to increase.Objective To explore the role of macrophages in non-alcoholic steatohepatitis (NASH) in order to provide directions for the therapeutic target of metabolic liver disease. Methods Twenty C57BL/6 wild-type male mice at 6-8 weeks were randomly divided into two groups 5 in the control group, methionine-and choline-deficient diet (MCD); 15 in the experimental group, MCD diet + intraperitoneal injection of disodium chlorophosphonate liposomes (to clear macrophages). Mice were fed for 4 weeks to establish NASH model. Blood, liver and spleen were collected to analyze the body mass index, liver index, spleen index, and serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels. Non-alcoholic steatosis (NAS) activity score was evaluated by HE and Oil Red O staining. The relative expression level of F4/80 mRNA was compared by RT-PCR. Data comparison between groups was analyzed by t-test. Results NASH model was successfully established by feeding the mice with MCD for four week. The expression of F4/80 mRNA (t = 4.167, P less then 0.01), hepatic steatosis (t = 10.70, P less then 0.05), interlobular inflammatory infiltration (t = 3.08, P less then 0.05), and NAS score were decreased (t = 8.06, P less then 0.05) in the experimental group. At the same time, ALT level [(817.00 ± 128.90) U/L vs. (231.20 ± 36.28) U/L, t = 5.71, P less then 0