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Rapamycin extends mouse lifespan 9–14%
NAD+ precursors reverse aging in humans
Blue-light glasses improve sleep quality
Walking 10 min after meals blunts glucose
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Should we worry about APOE4? — Whalespan

Content›Video›Should we worry about APOE4?…

Should we worry about APOE4?

Paul Saladino10m · 2022-08-14

Claims Made

24

Claims Supported

16

Support Rate

67%

Support rate

16 of 24 claims supported

16 supported8 partial / not

Claims from this content

20

✓Well SupportedCarriers of two copies of APOE4 have a 12-fold increased chance of developing Alzheimer's disease, while carriers of one copy have a two to four-fold increased chance.✓Well SupportedThe APOE4 allele emerged relatively recently in human evolution, suggesting that for the majority of human history, individuals possessed the APOE2 or APOE3 alleles.✓Well SupportedIndividuals with the APOE4 genotype had a lower risk of developing dementia, particularly Alzheimer's, in a metabolically healthy Nigerian population.✓Well SupportedMaintaining high insulin sensitivity may reduce the risk of Alzheimer's disease.Well Supported

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A. Volkovreader

4h

Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.

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N. Park

2d

Would love a "what would change this verdict" RSS feed. Sign me up if it exists.

✓

Brain insulin resistance, associated with Alzheimer's disease, is linked to IGF-1 resistance, IRS-1 downregulation, and cognitive decline.

✓Well SupportedA ketogenic diet high in saturated fats and low in carbohydrates improved a heterozygous APOE4 male with type 2 diabetes's Montreal Cognitive Assessment score, reversed his type 2 diabetes, improved markers of metabolic syndrome, and led to weight loss.

◐Partially SupportedIndividuals with the APOE4 genotype may have concerns related to insulin problems rather than saturated fat intake, particularly concerning neurological conditions.

◐Partially SupportedAlzheimer's disease is often referred to as 'type 3 diabetes' due to brain insulin resistance.

◐Partially SupportedAPOE4 is the ancestral genotype of apolipoprotein E, present in all primate ancestors.

✕Not SupportedIndividuals with APOE4 do not need to avoid saturated fat due to a lack of mechanistic basis for saturated fat worsening Alzheimer's disease.

◐Partially SupportedAPOE4 may be protective in settings with high parasitic infection burden due to improved immune function.

◐Partially SupportedAPOE4 appears to have been protective against parasitic infections.

◐Partially SupportedA ketogenic diet has strong potential to restore systemic insulin sensitivity and metabolic flexibility in diabetic individuals.

◐Partially SupportedIn indigenous populations living closer to a hunter-gatherer lifestyle, APOE4 does not appear to be harmful.

◐Partially SupportedAPOE4 may not be a concern for individuals who are insulin sensitive.

◐Partially SupportedTriglyceride levels are not significantly associated with Alzheimer's disease risk in individuals without the APOE4 allele.

◐Partially SupportedIn some indigenous populations, the APOE4 variant is protective against dementia when combined with low exposure to processed diets.

✕Not SupportedMany researchers and physicians mistakenly apply conclusions drawn from insulin-resistant populations to all humans, including those who are insulin-sensitive.

◐Partially SupportedGenetic testing for APOE genotype can likely be obtained through a physician.

◐Partially SupportedIndividuals with insulin sensitivity can consume saturated fats from animal foods, even with APOE4, as these may protect against dementia.