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. 2017 Mar 29;2017:4798963. doi: 10.1155/2017/4798963

Table 5.

Fatty acid composition (mol/100 mol) of liver triacylglycerols in male weanling rats fed high-fat diets differing in Zn content and fat source free choice or in restricted amounts for 4 wk.

Fatty acids Diet groups1,2 2 × 2 ANOVA3: P level
LZ-CB HZ-CBR LZ-SF HZ-SFR HZ-SF Zn Fat Zn × fat
16:04,5 24.7b ± 0.57 28.2c ± 1.68 9.8a ± 0.51 10.3a ± 0.47 10.1a ± 1.21 <0.001 <0.001 0.018
18:04,5 9.5b ± 1.08 8.4b ± 0.97 2.5a ± 0.26 2.3a ± 0.21 2.4a ± 0.24 0.021 <0.001 0.48
Σ  SFAs4,5 34.2b ± 0.82 36.6b ± 1.68 12.3a ± 0.67 12.6a ± 0.58 12.6a ± 1.34 0.006 <0.001 0.17
18:1n-94,5 43.8c ± 2.13 43.5c ± 4.06 8.8a ± 0.67 9.8ab ± 0.83 10.8b ± 1.44 0.098 <0.001 0.044
Σ  MUFAs4,5,6 45.2c ± 2.24 44.7c ± 4.02 9.6a ± 0.59 10.5ab ± 0.87 11.5b ± 1.43 0.16 <0.001 0.058
18:2n-6 14.1a ± 2.00 12.9a ± 2.68 56.6b ± 2.51 56.4b ± 1.68 57.0b ± 1.29 0.41 <0.001 0.52
18:3n-64,5 0.4a ± 0.11 0.4a ± 0.13 1.8b ± 0.49 2.0b ± 0.35 1.5b ± 0.20 0.72 <0.001 0.088
20:4n-64 2.9a ± 0.53 2.3a ± 0.75 11.2b ± 1.47 10.3b ± 1.23 10.5b ± 2.08 0.051 <0.001 0.70
22:4n-64 0.6a ± 0.20 0.7a ± 0.23 4.4c ± 0.41 3.9bc ± 0.68 2.9b ± 0.67 0.088 <0.001 0.056
Σ  n-6 PUFAs7 18.1a ± 2.27 16.3a ± 3.62 76.6b ± 0.91 75.5b ± 1.10 74.6b ± 2.53 0.072 <0.001 0.65
18:3n-34,5 0.5a ± 0.11 0.5a ± 0.14 0.4a ± 0.06 0.4a ± 0.03 0.5a ± 0.06 0.70 0.036 0.81
22:5n-34,5 1.2c ± 0.28 1.4c ± 0.37 0.6b ± 0.07 0.6b ± 0.10 0.3a ± 0.05 0.90 <0.001 0.11
22:6n-34,5 0.8c ± 0.28 0.6bc ± 0.26 0.4a ± 0.06 0.4a ± 0.05 0.5ab ± 0.11 0.055 <0.001 0.15
Σ  n-3 PUFAs4,5 2.5b ± 0.53 2.4b ± 0.46 1.5a ± 0.08 1.4a ± 0.09 1.3a ± 0.15 0.31 <0.001 0.77
Δ6 DS products8 29.3c ± 2.74 28.3bc ± 1.79 25.8abc ± 3.04 24.8ab ± 2.70 22.9a ± 3.58 0.28 0.001 0.96
Ratio n-6/n-35 7.5a ± 1.77 6.8a ± 1.18 52.8b ± 3.27 55.8b ± 3.35 57.2b ± 5.98 0.80 <0.001 0.18
Relative UI 1.01a ± 0.05 0.95a ± 0.07 2.04b ± 0.04 2.00b ± 0.05 1.97b ± 0.10 0.011 <0.001 0.62

1See footnote 1 of Table 2.

2Values are means ± SD, n = 8. Labeled means in a row without a common letter differ by 1-factor ANOVA followed by Tukey's multiple-comparison test, P < 0.05.

3Bifactorial ANOVA of the LZ-CB, HZ-CBR, LZ-SF, and HZ-SFR diet groups.

41-factor ANOVA after logarithmic transformation of the data.

5Bifactorial ANOVA after logarithmic transformation of the data.

6Contain 20:1n-9 and 22:1n-9 (the latter in SF groups only).

7Contain 20:2n-6 and 20:3n-6 in SF groups.

8Total Δ6 desaturation products (mol per 100 mol PUFAs) contain 18:3n-6, 20:3n-6, 20:4n-6, 22:4n-6, 22:5n-3, and 22:6n-3.

SFAs, saturated fatty acids; MUFAs, monounsaturated fatty acids; PUFAs, polyunsaturated fatty acids; UI, relative unsaturation index.