APOE Gene, Alzheimer’s & Dementia Disease Risk: Must Know New Details
Alzheimer’s disease and dementia prevalence and deaths are on the rise, claiming over 6,000 lives in the USA every week! Yet many people don’t even know their APOE genotype, which arguably has the biggest impact on future Alzheimer’s disease and dementia as well as cardiovascular disease risk.
In this show we dive deeper into what the APOE gene does and how knowing this info can help tweak your nutrition and lifestyle helping to reduce risk of future disease—especially if you have one or two copies of the APOE ε4 gene.
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00:53 APOE is a gene that makes proteins that are involved in lipid binding.
01:10 APOE and Immunity
01:39 APOE 4 alleles and Alzheimer’s disease risk
03:13 3 different APOE isoforms: APOE2, APOE3, APOE4 allele.
03:44 Having the gene does not mean that you will get the disease.
04:35 APOE is involved in lipid metabolism
05:30 Lipoproteins and lipids transport
06:05 APOE can redistribute lipids across tissues and cell types.
07:40 APOE is secreted by the liver with VLDL and bile acids
08:00 Lipoprotein lipase facilitates your metabolic deposits. Hormone sensitive lipase facilitates your metabolic withdrawals.
09:42 Your omega 3 index and APE 4 isoform.
11:35 APOE4 and cholesterol
11:45 ApoB VS ApoE
12:09 APOE2 carriers tend to have a less atherogenic lipid profile.
12:15 APOE4 carriers are associated with decreased levels of APOE triglycerides and increased levels of APOB in lipoproteins
13:12 APOE4 puts genotype carriers at increased risk for heart disease. This is likely due to the association with APOE4 and elevated LDL and Apolipoprotein B.
14:07 APOE4 primes your microglia to be more inflammatory. Microglia are brain immune cells. They are involved in synaptic processing, pruning of cells, shaping neurons, and removing inflammatory debris. APOE4 carriers have decreased cerebral glucose metabolism and increased levels of beta amyloid and tau protein.
15:50 With APOE4, there are changes and increase of tau protein within the neurons. There are also alterations in the blood brain barrier integrity.
16:00 To preserve the integrity of the brain, moderate alcohol consumption, increase exercise, incorporate sauna therapy and sauna bathing, as it effects cerebral blood flow.
16:45 APOE is expressed in astrocytes, microglia and other vascular cells within the brain. Blood brain barrier prevents toxins and metabolic waste from going into your brain. Increased expression of APOE is detected in stressed neurons.
17:42 APOE isoforms affect lipid transport, glucose metabolism, mitochondrial function, synaptic plasticity, beta amyloid protein expression, tau protein and cerebral vascular function within the brain.
18:18 Ratio of APOE4 allele correlates with loss of gray matter volume and abnormal glucose metabolism, a hallmark of Alzheimer’s and dementia.
19:00 APOE4 is the greatest genetic risk factor for late onset Alzheimer’s disease. It also influences the risk and outcomes for stroke, MS, Parkinson’s disease, and frontotemporal dementia.
22:11 A low carb diet, high in wild caught fish, is protective for APOE4 carriers. It impacts brain metabolism and lipid levels favorably. Drive your glycemic load down.
24:05 If you are over the age of 50 and have one or two copies of the APOE4 allele, consider microdosing with rapamycin. Rapamycin is an mTOR inhibitor. It may delay the onset of Alzheimer’s and dementia.