Liver histology. Accumulation of lipid droplets is evident in the liver of alcohol-fed mice, while relatively few lipid droplets were found in the hepatocytes of other groups (hematoxylin/eosin staining; original magnification, × 40). Serum ALT levels show similar trends to hepatic TG content in all groups. GH1 therapy reversed the alcohol-diet-induced increases in hepatic TG and serum ALT. ALT: alanine transaminase; TG: triglyceride. n = 6 mice per group. Means without a common letter differ at P< 0.05 vs. the control group.