Table 3.
Association of Decreases in Leucine/Isoleucine, Valine, and BCAA with Changes in Hepatic Fat and Abdominal Fat Distribution during 2 years (N = 184)
Outcomes | Leucine/Isoleucine | Valine | Total BCAAs | |||
---|---|---|---|---|---|---|
β (SE) | P | β (SE) | P | β (SE) | P | |
Model 1 | ||||||
Hepatic density, HU | 0.88 (0.39) | 0.02 | 0.77 (0.35) | 0.03 | 0.89 (0.37) | 0.02 |
Abdominal fat distribution | ||||||
SAT, kg | -0.25 (0.08) | 0.003 | -0.19 (0.08) | 0.01 | -0.23 (0.08) | 0.004 |
VAT, kg | -0.24 (0.06) | <0.001 | -0.12 (0.05) | 0.02 | -0.19 (0.05) | <0.001 |
TAT, kg | -0.48 (0.13) | <0.001 | -0.35 (0.12) | 0.003 | -0.43 (0.12) | <0.001 |
Model 2 | ||||||
Hepatic density, HU | 0.89 (0.39) | 0.02 | 0.78 (0.35) | 0.03 | 0.91 (0.37) | 0.02 |
Abdominal fat distribution | ||||||
SAT, kg | -0.18 (0.08) | 0.02 | -0.15 (0.07) | 0.04 | -0.17 (0.07) | 0.02 |
VAT, kg | -0.24 (0.05) | <0.001 | -0.12 (0.05) | 0.01 | -0.19 (0.05) | <0.001 |
TAT, kg | -0.38 (0.11) | <0.001 | -0.28 (0.10) | 0.005 | -0.35 (0.10) | 0.001 |
Model 3 | ||||||
Hepatic density, HU | 0.67 (0.40) | 0.09 | 0.63 (0.36) | 0.08 | 0.70 (0.38) | 0.07 |
Abdominal fat distribution | ||||||
SAT, kg | -0.19 (0.08) | 0.03 | -0.11 (0.08) | 0.14 | -0.15 (0.08) | 0.05 |
VAT, kg | -0.22 (0.06) | <0.001 | -0.10 (0.05) | 0.03 | -0.16 (0.05) | 0.003 |
TAT, kg | -0.37 (0.12) | 0.001 | -0.24 (0.11) | 0.02 | -0.32 (0.11) | 0.005 |
β (SE) represents changes in the outcome traits per SD decrease in leucine/isoleucine, valine, or BCAA.
Model 1: mixed-effect model adjusted for age, sex, ethnicity, and diet intervention group.
Model 2: model 1+ baseline body mass index, medication for controlling cholesterol.
Model 3: model 2+ weight loss at 2 years (31 missingness on 2-year weight-loss).
BCAA, branched-chain amino acid; HU, Hounsfield unit; SAT, subcutaneous adipose tissue; TAT: total adipose tissue, VAT: visceral adipose tissue.