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Abstract Title:

Red raspberry () supplementation mitigates the effects of a high-fat diet on brain and behavior in mice.

Abstract Source:

Nutr Neurosci. 2019 Jul 20:1-11. Epub 2019 Jul 20. PMID: 31328696

Abstract Author(s):

Amanda N Carey, Giulia I Pintea, Shelby Van Leuven, Kelsea R Gildawie, Laura Squiccimara, Elizabeth Fine, Abigail Rovnak, Mark Harrington

Article Affiliation:

Amanda N Carey

Abstract:

Research has shown that berries may have the ability to reverse, reduce, or slow the progression of behavioral dysfunction associated with aging and neurodegenerative disease. In contrast, high-energy and high-fat diets (HFD) may result in behavioral deficits like those seen in aging animals. This research examined whether red raspberry () mitigates the effects of HFD on mouse brain and behavior.Eight-week-old mice consumed a HFD (60% calories from fat) or a control diet (CD) with and without 4% freeze-dried red raspberry (RB). Behavioral tests and biochemical assays of brain tissue and serum were conducted.After 12 weeks on the diets, mice fed CD and HFD had impaired novel object recognition, but mice on the RB-supplemented diets did not. After approximately 20 weeks on the diets, mice fed HFD + RB had shorter latencies to find the escape hole in the Barnes maze than the HFD-fed mice. Interleukin (IL)-6 was significantly elevated in the cortex of mice fed HFD; while mice fed the CD, CD + RB, and HFD + RB did not show a similar elevation. There was also evidence of increased brain-derived neurotrophic factor (BDNF) in the brains of mice fed RB diets. This reduction in IL-6 and increase in BDNF may contribute to the preservation of learning and memory in HFD + RB mice.This study demonstrates that RB may protect against the effects HFD has on brain and behavior; however, further research with human subjects is needed to confirm these benefits.

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