Abstract

ABSTRACTNeuroinflammation can be triggered by a high‐fat/high‐fructose diet (HFFD), and CD36 may be an underlying mechanism. Lauric acid (LA), the major fatty acid in coconut oil, and resveratrol, the plant‐based polyphenolic compound, may exert anti‐inflammatory effects. Therefore, this study investigated the possible effects of LA and resveratrol on diet‐induced neuroinflammation and CD36. Healthy male C57BL/6 mice (8 weeks of age, n = 31) were fed a control diet (10%kcal fat) or diets containing high fat (60%kcal fat) and fructose (5% w/v fructose drinking water) for 6 weeks, ad libitum. Supplemented to the HFFD, mice daily received resveratrol (7.5 mg/kg) (HFFD‐RSV) or LA (750 mg/kg) (HFFD‐LA). At the end of the study, HFFD resulted in anxiety‐like behavior, reduced locomotor activity, neuroinflammation (increased brain GFAP, IL‐6, MCP‐1, IFN‐γ, TNF‐α), and systemic inflammation (increased plasma GFAP, IFN‐γ, TNF‐α, IL‐12p70, reduced plasma IL‐10). HFFD‐RSV and HFFD‐LA alleviated HFFD‐induced anxiety‐like behavior, neuroinflammation, and systemic inflammation. HFFD‐LA improved memory. Brain and plasma CD36 levels were increased by HFFD and reduced by HFFD‐RSV or HFFD‐LA. Dietary resveratrol and LA intake may alleviate HFFD‐induced neuroinflammation, systemic inflammation, and anxiety‐like behavior and improve memory, as CD36 may be an underlying mechanism.

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