Table 5. Gene expression in WAT of control and cafeteria diet-fed rats in fmol/g protein. I Glucose oxidation and nitric oxide synthase.
protein | gene | WAT | male control | male cafeteria | female control | female cafeteria | P site | P sex | i | P diet |
---|---|---|---|---|---|---|---|---|---|---|
glucose transporter 4 | Glut4 | SC | 108±29 | 123±25 | 161±184 | 115±8 | <0.0001 S≈P>M≈R | NS | NS | |
ME | 31.2±8.6 | 15.8±3.0 | 116±36 | 12.2±0.6 | NS | 0.0189↓ | ||||
PG | 109±8 | 70.2±2.7 | 160±54 | 32.6±6.6 | NS | 0.0134↓ | ||||
RP | 44.0±6.5 | 25.2±3.9 | 119±43 | 26.0±5.8 | NS | 0.0088↓ | ||||
hexokinase 2 | Hk2 | SC | 11.7±2.5 | 13.0±1.9 | 18.9±3.7 | 14.7±0.9 | <0.0001 S≈P>M≈R | NS | NS | |
ME | 7.9±1.2 | 2.7±0.5 | 16.8±3.2 | 1.5±0.2 | 0.0304f | i | <0.0001↓ | |||
EC 2.7.1.1 | PG | 16.9±2.8 | 14.6±2.0 | 25.6±5.7 | 10.5±2.1 | NS | 0.0266↓ | |||
RP | 4.1±0.4 | 2.9±0.4 | 13.5±4.5 | 3.3±0.6 | 0.0084f | i | 0.0030↓ | |||
glucose-6P-dehydrogenase | G6pd | SC | 334±73 | 413±51 | 257±25 | 302±36 | 0.0001 S>P>M≈R | NS | NS | |
ME | 129±18 | 75.6±9.3 | 202±32 | 62.9±4.6 | NS | i | <0.0001↓ | |||
EC 1.1.1.49 | PG | 129±12 | 188±23 | 285±51 | 145±16 | NS | i | NS | ||
RP | 84.2±14.2 | 67.0±5.7 | 183±35 | 82.0±9.3 | 0.0048f | 0.0037↓ | ||||
pyruvate dehydrogenase kinase 4 | Pdk4 | SC | 181±73 | 187±41 | 22.7±2.6 | 90.2±21.6 | <0.0001 S>P≈M≈R | 0.0113m | NS | |
ME | 14.2±3.7 | 14.4±2.1 | 7.6±3.9 | 9.1±1.7 | NS | NS | ||||
EC 2.7.11.2 | PG | 14.5±5.4 | 20.6±3.2 | 8.5±3.2 | 11.8±2.2 | NS | NS | |||
RP | 13.5±3.5 | 12.9±1.6 | 6.1±1.0 | 17.6±3.7 | NS | NS | ||||
pyruvate dehydrogenase kinase 2 | Pdk2 | SC | 263±87 | 167±41 | 146±13 | 302±36 | <0.0001 S>M≈P≈M>R | NS | NS | |
ME | 120±24 | 34.2±1.7 | 193±51 | 22.9±5.3 | NS | 0.0009↓ | ||||
EC 2.7.11.2 | PG | 91.7±12.8 | 90.1±11.4 | 86.6±16.8 | 41.8±3.1 | 0.0426m | NS | |||
RP | 48.6±7.6 | 27.9±3.9 | 63.9±10.4 | 31.5±6.1 | NS | NS | ||||
nitric oxide synthase (endothelial type) | Nos3 | SC | 75.4±9.5 | 88.9±6.0 | 43.2±2.8 | 65.5±7.2 | <0.0001 S>P>M≈R | 0.0009m | 0.0190↑ | |
ME | 21.6±2.6 | 15.3±2.3 | 18.5±1.0 | 10.4±1.5 | NS | 0.0054↓ | ||||
EC 1.14.13.39 | PG | 31.6±6.3 | 32.9±4.6 | 22.6±2.4 | 13.3±1.9 | 0.0030m | NS | |||
RP | 14.7±1.1 | 11.6±1.7 | 16.1±2.2 | 9.4±1.2 | NS | 0.0051↓ |
The data are presented as fmol of the corresponding mRNA for g of tissue protein, and are the mean ± sem of 6 different animals. Up to three significant digits are shown for each mean value. SC/S = subcutaneous inguinal: ME/M = mesenteric; PG/P = perigonadal (periovaric, epididymal), RP/R = retroperitoneal. Statistical significance of the differences between groups (2-way anova): the columns show the P values for sex, diet and their interaction. A superscript f represents higher (overall) values for females and m for males. The arrows show the direction of significant changes for diet: ↓ indicate (overall) slower values for cafeteria diet-fed rats; a i in the interaction column indicates a significant interaction between the two factors analysed. The statistical significance of differences between sites was estimated by a 3-way-ANOVA; post-hoc Duncan test (same conventions as in Table 1)