Table 1. Serum metabolic parameters and food intake.
Parameters | Chow diet (week) | HFHS diet (week) | |||||||
---|---|---|---|---|---|---|---|---|---|
0 | 1 | 2 | 4 | 8 | 1 | 2 | 4 | 8 | |
TG (mM) | 1.29±0.12 | 1.57±0.12 | 1.01±0.1 | 1.28±0.28 | 1.12±0.08 | 1.75±0.19 | 2.93±0.22** | 2.41±0.25** | 1.90±0.14** |
TC (mM) | 1.39±0.03 | 1.87±0.09 | 1.51±0.06 | 1.46±0.07 | 1.59±0.04 | 2.50±0.13** | 3.31±0.13** | 3.34±0.16** | 2.95±0.13** |
HDL-c (mM) | 1.11±0.03 | 1.02±0.02 | 1.00±0.03 | 1.01±0.02 | 1.02±0.01 | 0.88±0.02 | 0.69±0.04** | 0.72±0.02** | 0.80±0.04** |
LDL-c (mM) | 0.19±0.01 | 0.41±0.03 § | 0.25±0.13 | 0.28±0.01 | 0.32±0.01 | 0.95±0.10** | 1.37±0.06** | 1.68±0.04 † ** | 1.60±0.08 † ** |
FFA (u/l) | 1787±97.8 | 1750±60.5 | 1746±207.4 | 1743±57.1 | 1792±81.6 | 1766±57.2 | 1925±77.8 | 2061±199 | 2414±145** |
Leptin (ng/ml) | 0.73±0.07 | 0.65±0.06 | 1.55±0.10 § | 1.61±0.23 § | 1.69±0.09 § | 0.70±0.08 | 3.44±0.51 † ** | 3.19±0.51 † ** | 3.43±0.73 † ** |
Food intake (kal/d) | 34.1±1.9 | 38.9±1.9 | 44.0±1.9 | 46.6±2.2 | 73.5±3.1 § | 42.1±2.1 | 52.2±2.4 | 61.6±3.1 | 102.2±3.8** |
Insulin (IU/L) | 31.9±1.94 | 45.5±2.06 | 37.8±4.51 | 34.3±1.92 | 36.7±1.27 | 139.6±9.4** | 177.6±19.54** | 248.2±15.58 † ** | 194.5±25.47 † ** |
Glucose (mM) | 4.3±0.18 | 6.1±0.47 | 4.6±0.25 | 4.8±0. 21 | 5.0±0.11 | 9.2±0.31** | 9.3±0.29** | 9.2±0.23** | 8.8±0.26** |
HOMA-IR | 6.1±0.55 | 7.1±0.65 | 7.6±0.86 | 7.4±0.68 | 8.1±0.34 | 55.5±3.46** | 74.5±10.50** | 101.3±5.31 † ** | 77.7±15.69 † ** |
OGTT-AUC | 14.28±0.28 | 14.89±0.29 | ND | ND | ND | 14.48±0.26 | 14.69±0.28 | 15.48±0.61 § | 15.12±0.48 § |
Blood was drawn after 12 h fasting. Values are means ± SE (n = 6–8 per group).
§ P<0.05 relative to 0-week under chow diet,
† P <0.05 relative to 1-week under HFHS diet;
** P<0.01, HFHS diet versus chow diet. TG, triglyceride; TC, total cholesterol; HDL-c, high-density lipoprotein associated cholesterol; LDL-c, low density lipoprotein associated cholesterol; FFA, free fatty acid; HOMA-IR, homeostasis model assessment of basal insulin resistance; OGTT, area under curve of oral glucose tolerance test; ND, Not determined.