Table 6.
Body weight and adiposity in chow-fed genetically selected DIO and DR rats
Parameter | DR | DIO |
---|---|---|
Body weight (g) | ||
Day 30, First measurement | 64.2 ± 1.9 | 71.4 ± 1.5* |
Day 37 | 109.2 ± 2.9 | 119.6 ± 2.2* |
Day 47, Training onset | 172.3 ± 3.2 | 194.7 ± 3.6*** |
Day 77, Baseline onset | 295.1 ± 5.7 | 348.9 ± 7.2*** |
Day 79, Dose–response onset | 301.8 ± 6.0 | 359.0 ± 7.7*** |
Day 111, Antagonist-reversal onset | 355.3 ± 11.3 | 445.0 ± 11.1*** |
Day 121, Study completion | 378.4 ± 7.4 | 456.4 ± 18.1** |
Fat Pads | ||
White fat pad (g) | ||
Inguinal | 8.02 ± 0.54 | 7.31 ± 0.54 |
Gonadal | 6.77 ± 0.27 | 5.03 ± 0.27** |
Retroperitoneal | 3.96 ± 0.25 | 2.96 ± 0.25* |
Mesenteric | 5.15 ± 0.34 | 4.54 ± 0.34 |
Subcutaneous | 1.95 ± 0.23 | 1.54 ± 0.23 |
Total | 25.86 ± 1.35 | 21.37 ± 1.36† |
Brown fat pad (g) | 0.42 ± 0.06 | 0.58 ± 0.06 |
White fat pad (% body weight) | ||
Inguinal | 1.70 ± 0.11 | 1.91 ± 0.15 |
Gonadal | 1.46 ± 0.05 | 1.35 ± 0.10 |
Retroperitoneal | 0.79 ± 0.05 | 0.83 ± 0.09 |
Mesenteric | 1.10 ± 0.05 | 1.19 ± 0.10 |
Subcutaneous | 0.44 ± 0.03 | 0.39 ± 0.05 |
Total | 5.49 ± 0.23 | 5.68 ± 0.45 |
Brown fat pad (% body weight) | 0.11 ± 0.01 | 0.13 ± 0.01 |
Whole Carcass Adiposity | ||
Fat (g) | 37.64 ± 2.10 | 30.86 ± 2.10† |
Fat (% body weight) | 8.84 ± 0.44 | 9.21 ± 0.79 |
Body weight and adiposity in DIO and DR rats (n = 8–9/genotype through day 77, n = 9/genotype from day 111 to study completion). Absolute (g) fat pad and whole carcass fat (g) values reflect the estimated marginal means from ANCOVA in which body weight was a covariate. Percentage (%) fat pad and whole carcass percentage (%) fat values reflect the raw, uncorrected fat pad masses expressed as a percentage of body weight. Values are means ± s.e.m.
P < 0.05
P < 0.01
P < 0.001
P = 0.06 (Student's t test).