TABLE 2.
Muscle phospholipid fatty acid profile before and after 8 wk of corn oil or omega-3 fatty acid supplementation1
Corn oil (n = 7) |
Omega-3 fatty acids (n = 8) |
|||
Before | After | Before | After | |
Saturated fatty acids (% of fatty acids) | ||||
14:0 | 0.38 ± 0.02 | 0.35 ± 0.04 | 0.40 ± 0.09 | 0.32 ± 0.03 |
16:0 | 17.94 ± 2.14 | 17.16 ± 1.74 | 19.80 ± 1.72 | 18.53 ± 1.33 |
18:0 | 19.97 ± 0.82 | 19.14 ± 0.63 | 24.07 ± 1.79 | 21.28 ± 0.46 |
Total | 38.24 ± 2.79 | 36.61 ± 2.11 | 44.17 ± 3.05 | 40.05 ± 1.49 |
Monounsaturated fatty acids (% of fatty acids) | ||||
16:1n−7 | 0.35 ± 0.05 | 0.37 ± 0.10 | 0.34 ± 0.09 | 0.50 ± 0.09 |
18:1n−9 | 8.88 ± 0.55 | 10.71 ± 1.21 | 9.43 ± 0.54 | 8.77 ± 0.47 |
Total | 9.23 ± 0.59 | 11.08 ± 1.24 | 9.77 ± 0.56 | 9.27 ± 0.50 |
Omega-6 polyunsaturated fatty acids (% of fatty acids) | ||||
18:2n−6 | 30.72 ± 2.45 | 30.84 ± 2.50 | 25.56 ± 1.45 | 25.92 ± 0.49 |
20:3n−6 | 1.18 ± 0.12 | 1.31 ± 0.12 | 1.23 ± 0.12 | 1.30 ± 0.09 |
20:4n−6 | 16.11 ± 1.32 | 16.02 ± 0.98 | 14.24 ± 1.14 | 14.44 ± 0.85 |
Total | 48.02 ± 3.122 | 48.17 ± 2.702 | 41.03 ± 2.41 | 41.65 ± 0.91 |
Omega-3 polyunsaturated fatty acids (% of fatty acids) | ||||
20:5n−3 | 0.81 ± 0.10 | 0.84 ± 0.10 | 0.77 ± 0.15 | 2.41 ± 0.34 |
22:5n−3 | 1.62 ± 0.15 | 1.50 ± 0.13 | 2.23 ± 0.29 | 2.51 ± 0.27 |
22:6n−3 | 2.08 ± 0.25 | 1.79 ± 0.20 | 2.03 ± 0.28 | 4.11 ± 0.41 |
Total3 | 4.52 ± 0.37 | 4.14 ± 0.31 | 5.04 ± 0.45 | 9.03 ± 0.9545 |
All values are means ± SEMs. The percentage of fatty acids was determined by dividing the peak area of each fatty acid by the sum of all peak areas after gas chromatographic analyses. There were no significant between-group differences in the “before” values, P ≥ 0.10 (Student's t tests).
Significant group (corn oil compared with omega-3 fatty acids) effect, P = 0.05 (ANOVA).
Significant group × time interaction (P < 0.05, ANOVA), which was followed by Tukey's post hoc analysis.
Significantly different from corresponding value before intervention, P < 0.01 (ANOVA).
Significantly different from the corresponding value in the corn oil group, P < 0.01 (ANOVA).