TABLE 3.
Anthropometrics, blood pressure fasting metabolic indices, and oral glucose tolerance test indices before and after 12-wk avocado or control intervention, including mean changes (Δ), in adults who are overweight or with obesity and have insulin resistance1
Avocado (n = 49) | Control (n = 44) | Week 12 AV vs. C, P value2 | Δ0–12 wk AV vs. C, P value2 | |||||
---|---|---|---|---|---|---|---|---|
Variable | Week 0 | Week 12 | Δ0–12 wk | Week 0 | Week 12 | Δ0–12 wk | ||
BMI, kg/m2 | 32.2 ± 0.558 | 32.2 ± 0.623 | –0.0449 ± 0.207 | 32.8 ± 0.592 | 32.9 ± 0.621 | 0.100 ± 0.127 | 0.5396 | 0.6238 |
Fat % | 36.2 ± 1.14 | 36.2 ± 1.16 | 0 ± 0.273 | 37.3 ± 1.20 | 37.2 ± 1.26 | –0.134 ± 0.219 | 0.6825 | 0.6825 |
Fat-free mass, kg | 58.7 ± 1.79 | 58.9 ± 1.77 | 0.190 ± 0.248 | 59.7 ± 2.02 | 60.0 ± 2.10 | 0.323 ± 0.246 | 0.7251 | 0.7251 |
Systolic BP, mm Hg | 124 ± 1.90 | 122 ± 1.86 | –2.01 ± 1.24 | 126 ± 2.01 | 126 ± 2.41 | 0.0606 ± 1.86 | 0.2257 | 0.2257 |
Diastolic BP, mm Hg | 77.5 ± 1.42 | 78.0 ± 1.52 | 0.497 ± 1.14 | 80.7 ± 1.75 | 80.5 ± 1.78 | –0.250 ± 1.16 | 0.9884 | 0.9884 |
Fasting glycemic indices | ||||||||
Fasting glucose, mg/dL | 106 ± 1.40 | 107 ± 1.51 | 1.27 ± 1.07 | 104 ± 1.68 | 105 ± 1.51 | 0.788 ± 0.914 | 0.4770 | 0.4770 |
Fasting insulin, μIU/mL | 10.2 ± 0.795 | 10.3 ± 0.727 | 0.0529 ± 0.533 | 10.1 ± 0.86 | 10.9 ± 0.677 | 0.774 ± 0.494 | 0.0951 | 0.0855 |
HOMA-IR | 2.72 ± 0.233 | 2.76 ± 0.212 | 0.0358 ± 0.148 | 2.69 ± 0.259 | 2.83 ± 0.184 | 0.122 ± 0.141 | 0.1946 | 0.1098 |
HOMA-β | 86.5 ± 6.05 | 85.9 ± 6.45 | –0.547 ± 5.58 | 88.6 ± 5.91 | 110 ± 18.2 | 5.17 ± 3.46 | 0.0848 | 0.2106 |
HbA1c | 5.59 ± 0.0654 | 5.54 ± 0.0589 | –0.0518 ± 0.0326 | 5.58 ± 0.0702 | 5.60 ± 0.0671 | 0.0451 ± 0.0395 | 0.0574 | 0.0632 |
Oral glucose tolerance test | ||||||||
Glucose AUC0–2h, mg/dL × h | 292 ± 8.43 | 301 ± 8.42 | 9.33 ± 5.79 | 285 ± 9.33 | 290 ± 9.16 | 3.69 ± 5.88 | 0.3088 | 0.3723 |
Glucose Cmax, mg/dL | 176 ± 6.09 | 180 ± 5.70 | 4.81 ± 3.97 | 171 ± 5.87 | 174 ± 5.70 | 1.50 ± 3.66 | 0.4012 | 0.3962 |
Insulin AUC0–2h, mg/dL × h | 155 ± 12.5 | 163 ± 11.3 | 8.58 ± 6.59 | 158 ± 14.2 | 170 ± 13.2 | 11.5 ± 9.50 | 0.6981 | 0.7007 |
Insulin Cmax, mg/dL | 125 ± 11.3 | 126 ± 9.42 | 1.08 ± 6.74 | 123 ± 10.8 | 133 ± 10.1 | 9.26 ± 7.86 | 0.3058 | 0.3835 |
MISI | 3.91 ± 0.355 | 3.62 ± 0.324 | –0.292 ± 0.191 | 3.95 ± 0.336 | 3.35 ± 0.292 | –0.753 ± 0.254 | 0.5430 | 0.1092 |
Lipid profile | ||||||||
Total triglyceride, mg/dL | 114 ± 8.13 | 120 ± 10.9 | 6.22 ± 7.46 | 111 ± 8.88 | 107 ± 7.58 | –4.07 ± 5.93 | 0.7333 | 0.2244 |
Total cholesterol, mg/dL | 184 ± 5.11 | 182 ± 4.74 | –1.61 ± 3.07 | 177 ± 5.03 | 181 ± 4.44 | 4.28 ± 2.97 | 0.3254 | 0.1943 |
HDL cholesterol, mg/dL | 48.1 ± 2.15 | 48.4 ± 2.07 | 0.367 ± 1.03 | 45.4 ± 2.06 | 47.1 ± 2.25 | 1.64 ± 0.873 | 0.5321 | 0.2413 |
LDL cholesterol, mg/dL | 113 ± 4.23 | 112 ± 3.92 | –0.551 ± 2.67 | 110 ± 3.93 | 113 ± 3.94 | 3.32 ± 2.23 | 0.4406 | 0.3656 |
Inflammation biomarkers | ||||||||
hsCRP, mg/L | 3.96 ± 0.812 | 3.20 ± 0.577 | –0.758 ± 0.673 | 3.55 ± 0.427 | 3.67 ± 0.498 | 0.120 ± 0.370 | 0.0418 | 0.1748 |
IL-6, pg/mL | 3.15 ± 0.382 | 3.02 ± 0.373 | –0.132 ± 0.203 | 3.77 ± 0.457 | 3.81 ± 0.493 | 0.0373 ± 0.208 | 0.5105 | 0.4410 |
MCP-1, pg/mL | 210 ± 17.2 | 209 ± 19.0 | –1.12 ± 7.07 | 193 ± 7.24 | 189 ± 6.33 | –3.65 ± 4.73 | 0.5531 | 0.7466 |
Endothelial function biomarkers | ||||||||
ICAM-1, ng/mL | 208 ± 8.43 | 207 ± 9.10 | –0.443 ± 3.85 | 213 ± 11.1 | 215 ± 10.7 | 1.23 ± 2.98 | 0.8742 | 0.6987 |
VCAM-1, ng/mL | 629 ± 21.9 | 622 ± 15.6 | –6.97 ± 15.0 | 674 ± 25.2 | 686 ± 23.1 | 11.1 ± 12.5 | 0.0849 | 0.0471 |
Values are the unadjusted mean ± SEM of the raw data; n = 49 and 44 for the AV and C groups, respectively. AV, avocado; BP, blood pressure; C, control; GLM, general linear model; HbA1c, glycated hemoglobin; hsCRP, high-sensitivity C-reactive protein; ICAM-1, intercellular adhesion molecule 1; MISI, Matsuda Insulin Sensitivity Index; MCP-1, monocyte chemoattractant protein 1; VCAM-1, vascular cell adhesion molecule 1.
ANCOVA was performed using the GLM procedure via PC-SAS version 9.4 and baseline (week 0) values as the covariate. Sex was also included in fasting insulin and HOMA-IR analyses as a significant covariate. Statistical significance was at P < 0.05. Marginal statistical effects were acknowledged at P = 0.05–0.1.