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The ApoE4 allele is the most well-studied genetic risk factor for Alzheimer’s disease, a condition that is increasing in prevalence and remains without a cure. Precision nutrition targeting metabolic pathways altered by ApoE4 provides a tool for the potential prevention of disease. However, no long-term human studies have been conducted to determine effective nutritional protocols for the prevention of Alzheimer’s disease in ApoE4 carriers. This may be because relatively little is yet known about the precise mechanisms by which the genetic variant confers an increased risk of dementia. Fortunately, recent research is beginning to shine a spotlight on these mechanisms. These new data open up the opportunity for speculation as to how carriers might ameliorate risk through lifestyle and nutrition. Herein, we review recent discoveries about how ApoE4 differentially impacts microglia and inflammatory pathways, astrocytes and lipid metabolism, pericytes and blood–brain barrier integrity, and insulin resistance and glucose metabolism. We use these data as a basis to speculate a precision nutrition approach for ApoE4 carriers, including a low-glycemic index diet with a ketogenic option, specific Mediterranean-style food choices, and a panel of seven nutritional supplements. Where possible, we integrate basic scientific mechanisms with human observational studies to create a more complete and convincing rationale for this precision nutrition approach. Until recent research discoveries can be translated into long-term human studies, a mechanism-informed practical clinical approach may be useful for clinicians and patients with ApoE4 to adopt a lifestyle and nutrition plan geared towards Alzheimer’s risk reduction.
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MDPI and ACS Style
Norwitz, N.G.; Saif, N.; Ariza, I.E.; Isaacson, R.S. Precision Nutrition for Alzheimer’s Prevention in ApoE4 Carriers. Nutrients2021, 13, 1362.
https://doi.org/10.3390/nu13041362
AMA Style
Norwitz NG, Saif N, Ariza IE, Isaacson RS. Precision Nutrition for Alzheimer’s Prevention in ApoE4 Carriers. Nutrients. 2021; 13(4):1362.
https://doi.org/10.3390/nu13041362
Chicago/Turabian Style
Norwitz, Nicholas G., Nabeel Saif, Ingrid E. Ariza, and Richard S. Isaacson. 2021. "Precision Nutrition for Alzheimer’s Prevention in ApoE4 Carriers" Nutrients 13, no. 4: 1362.
https://doi.org/10.3390/nu13041362
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