Fig. 1

Body weight, liver weight and triglyceride accumulation in liver were significantly increased in the high fat diet group (HF), and it could be retarded with NAC treatment. a Determination of body weight, b liver weight and c percentage ratio of liver/body weight. d Determination of triglyceride in liver tissue extraction, e then conversed to triglyceride content (μg) per milligram of liver tissue. All values are expressed as mean ± SEM (n = 6). *P < 0.05. The letters represented different groups (CD for chow diet group; CD + NAC for chow diet and NAC intervention 1–12 months group; HF for high fat diet group; HF + NAC (1–6) for high fat diet and NAC intervention 1–6 months group; HF + NAC (1–12) for high fat diet and NAC intervention 1–12 months group)