Table 3.
Commercial diet | n-3PUFA diet | n-6PUFA diet | MUFA diet | |
---|---|---|---|---|
n-9 series | ||||
Oleic Acid | 15.5 ± 0.5 | 15.2 ± 0.9 | 15.4 ± 0.5 | 15.3 ± 0.7 |
n-6 series | ||||
LA | 0.53 ± 0.03a | 0.59 ± 0.03b | 0.49 ± 0.04a | 0.52 ± 0.04a |
ARA | 9.2 ± 0.9a | 9.8 ± 0.7b | 9.6 ± 0.4b | 9.75 ± 0.6b |
DPAn-6 | 0.40 ± 0.05a | 0.37 ± 0.06a | 0.67 ± 0.1b | 0.63 ± 0.1b |
n-3 series | ||||
ALA | 0.001 ± 0.001a | 0.004 ± 0.003b | 0.000 ± 0.0000a | 0.000 ± 0.000a |
EPA | 0.019 ± 0.003a | 0.03 ± 0.004b | 0.006 ± 0.001c | 0.006 ± 0.002c |
DPAn-3 | 0.166 ± 0.008a | 0.185 ± 0.01b | 0.102 ± 0.01d | 0.119 ± 0.01c |
DHA | 16.4 ± 0.7a | 16.7 ± 0.7a | 15.6 ± 0.5b | 15.9 ± 0.8a |
n-6/n-3 ratio | ||||
ARA/DHA | 0.56 ± 0.03 | 0.59 ± 0.03 | 0.60 ± 0.03 | 0.61 ± 0.03 |
Note: Results are means ± SEM and are expressed as percents of the total fatty acid content of brain phospholipids. Distinct and similar superscript letters (a, b and/or c) within a same horizontal line indicate significant (p<0.01) and not significant differences between dietary groups towards the considered fatty acid, respectively. The absence of a superscript letter throughout a horizontal line means that no significant difference between the four diet groups occurs in the levels of the considered fatty acid. Abbreviations are : LA, linoleic acid; ARA, arachidonic acid; DPAn-6, docosapentaenoic acid of the n-6 series; ALA, alpha-linolenic acid; EPA, eicosapentanoic acid; DPAn-3, docosapentaenoic acid of the n-3 series, DHA, docosahexaenoic acid. Diets have been defined in the text and in Table 1 and have been given to mice for a period 30 days before analyses of brain phospholipids. Contents in phospholipid saturated fatty acids are 100% from which are withdrawn percentages of phospholipid unsaturated fatty acids given in the table.