The study was designed to explore the impact of fish oil supplement on the brain lipids profile in ApoE-deficient (ApoE-/-) mice and wild-type C57BL/6 J (C57 wt) mice treated with diets containing varying dosage of vitamin E (VE). Compared to C57 wt mice, ApoE-/- mice exhibited increased cortical TC and LDL-C levels, but decreased HDL-C level (P<.05). The fish oil intervention, combined with low dietary VE intake resulted in increased cortical protein expression of CD36 and PPARγ in C57 wt mice. PI (36:5) was identified as a significantly different metabolite when compared to the control group in both C57 wt and ApoE-/- mice. The combination of fish oil and varying doses of VE had different effects on the expression of brain lipids and fatty acid transporters in ApoE-/- and C57 wt mice, indicating that ApoE status and dietary VE intake influence the responses of the cerebral lipids profile to fish oil supplementation.
Keywords: ApoE-/-; Dosage of VE; Fish oil; Lipid metabolism; Lipidomics.
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