Table 2. Fatty acid composition of ethanolamine phosphoglycerides in relation to diet and age in rat brain.
| Composition, % of total fatty acids
|
||||
|---|---|---|---|---|
| Fatty acid | YR | YR + FO | OR | OR + FO |
| DMA 16:0 | 4.14 ± 1.2 | 3.46 ± 0.33 | 5.33 ± 0.38 | 4.65 ± 0.55 |
| 16:0 | 6.68 ± 2.19 | 5.71 ± 1.30 | 5.75 ± 1.56 | 5.52 ± 0.13 |
| 16:1n-7 | 0.68 ± 0.24 | 0.63 ± 0.15 | 0.73 ± 0.29 | 0.63 ± 0.15 |
| DMA 18:0 | 8.00 ± 0.24 | 7.83 ± 1.06 | 9.15 ± 0.35 | 9.29 ± 1.14 |
| DMA18:1n-9 | 2.91 ± 1.35 | 2.74 ± 0.34 | 3.53 ± 0.32 | 3.30 ± 0.87 |
| DMA18:1n-7 | 1.91 ± 1.91 | 2.08 ± 0.56 | 5.44 ± 0.53 | 5.59 ± 1.28 |
| 18:0 | 16.35 ± 2.74 | 15.32 ± 2.00 | 13.81 ± 0.74 | 13.83 ± 0.81 |
| 18:1n-9 | 12.89 ± 1.69 | 13.90 ± 1.63 | 13.22 ± 0.76 | 13.72 ± 0.56 |
| 18:1n-7 | 1.96 ± 0.41 | 2.31 ± 0.22 | 5.44 ± 0.53 | 5.59 ± 1.28 |
| 18:2n-6 | 0.77 ± 0.15 | 0.91 ± 0.63 | 0.83 ± 0.22 | 0.61 ± 0.20 |
| 20:1n-9 | 4.10 ± 0.09 | 3.45 ± 0.73 | 3.39 ± 0.33 | 3.69 ± 0.62 |
| 20:4n-6 | 9.37 ± 0.93 | 8.70 ± 0.71 | 10.92 ± 1.05 | 9.32 ± 0.57 |
| 22:4n-6 | 5.19 ± 0.85 | 5.12 ± 0.22 | 5.60 ± 0.38 | 5.05 ± 0.35 |
| 22:6n-3 | 17.22 ± 1.63a,b | 19.51 ± 0.67a | 15.97 ± 0.56b | 17.21 ± 0.54 |
YR, young rat; OR, old rat; FO, fish oil; DMA, dimethyl acetal; note 20:4n-6 is AA and 22:6n-3 is DHA. Values with identical superscripts are significantly different (P < 0.05).