Table 1.
Coefficients and exponents for length–volume and volume–diameter scaling power laws in epicardial coronary arterial trees of high-fat diet and control groups. The values were mean±s.d. (averaged over arterial trees). One-way ANOVA was used to compare coefficients between the high-fat diet and control groups.
| scaling power laws |
high-fat diet (n = 6) | control (n = 6) | per cent difference (%) | p-value | |
|---|---|---|---|---|---|
| least-squares fit of both K0 and X values (two-parameter model) | |||||
| length–volume scaling law (Lc = K0LVVcXLV) | K0LV | 17.0±4.6 | 38.8±11.2 | −56.1 | <0.05 |
| XLV | 0.91±0.10 | 0.73±0.07 | 24.3 | <0.05 | |
| R2 | 0.95±0.04 | 0.99±0.01 | |||
| volume–diameter scaling law (Vc = K0VDDsXVD) | K0VD | 3198±5591 | 23.3±11.8 | 13 644 | <0.05 |
| XVD | 4.43±2.23 | 3.28±0.32 | 35.0 | <0.05 | |
| R2 | 0.20±0.17 | 0.94±0.02 | |||
| least-squares fit of K values with X equal to theoretical values (one-parameter model) | |||||
| length–volume scaling law (Lc = KLVVc7/9) | KLV | 14.6±2.6 | 40.9±5.6 | −64.3 | <0.05 |
| R2 | 0.95±0.04 | 0.99±0.01 | |||
| volume–diameter scaling law (Vc = KVDDs3) | KVD | 24.0±7.9 | 9.5±1.6 | 151 | <0.05 |
| R2 | 0.20±0.17 | 0.94±0.02 | |||