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Table 1 N6/N3 LC-PUFA ratios [(20:4n6 + 22:4n6)/(20:5n3+22:5n3+22:6n3)] in whole brain, hippocampus, and hepatic phospholipid pools. Typically, the above ratios were highest following feeding of the AA-enriched diet, lowest following feeding of the FISH diet, and intermediary following feeding of the combination diet. Abbreviations: SPN, sphingomyelin; PC, phosphatidylcholine; PS/PI, mixture of phosphatidylserine and phosphatidylinositol; PE, phosphatidylethanolamine; CL, cardiolipin. 20:4, 20:4n6; 22:4, 22:4n6; 20:5, 20:5n3; 22:5, 22:5n3; 22:6, 22:6n3.

From: Dietary effects of arachidonate-rich fungal oil and fish oil on murine hepatic and hippocampal gene expression

Dietary Group Tissue (20:4+22:4)/(20:5+22:5+22:6) ratio in various phospholipids
   SPN PC PS/PI PE CL
Control Whole Brain - 1.31 0.53 0.75 1.18
FUNG Whole Brain - 2.33 0.68 0.94 0.73
FISH Whole Brain - 0.99 0.41 0.50 0.36
FUNG +FISH Whole Brain - 1.20 0.50 0.67 1.08
Control Hippocampus - 2.96 0.50 0.79 1.30
FUNG Hippocampus - 4.18 0.67 0.96 1.09
FISH Hippocampus - 1.86 0.44 0.51 0.76
FUNG +FISH Hippocampus - 2.45 0.52 0.62 0.92
Control Liver 0.83 2.14 8.02 2.00 0.69
FUNG Liver 1.91 9.73 12.51 3.53 1.97
FISH Liver 0.32 0.32 1.52 0.35 0.16
FUNG +FISH Liver 0.90 1.48 2.93 0.62 0.39