407 ‒ Preventing cardiovascular and Alzheimer’s disease: lowering LDL early, APOE4, and more
In a Nutshell
Michael Davidson argues that maintaining LDL below 80 mg/dL throughout life—ideally starting in your 30s—prevents heart disease far more effectively than lowering it after plaque forms, since 8 grams of cumulative LDL exposure leads to ASCVD. His company’s CETP inhibitor obicetrapib lowers LDL 45-50%, raises HDL 150%, cuts Lp(a) 50%, and appears to reduce Alzheimer’s biomarkers in APOE4 carriers by improving brain cholesterol metabolism. The key message is that both cardiovascular and Alzheimer’s prevention require treating causal lipid drivers decades earlier than current guidelines recommend.
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Peter Attia welcomes Michael Davidson, a cardiologist and lipidologist who runs the lipid clinic at University of Chicago. Davidson sees patients four full days per month in a prevention-focused practice. His path to lipidology was shaped by his father's death at age 47 from a heart attack when Davidson was 16, combined with a family history of abnormal lipids.
Davidson conducted early NASIN trials in the late 1970s and 1980s, researched omega-3 fatty acids during fellowship, and was the first to use fish oil capsules to treat lipid disorders. He participated in all the major statin trials and opened a prevention center after fellowship, along with a research company conducting clinical trials.
Davidson advocates for primordial prevention - stopping plaque from forming before it exists, which is easier than reversing existing plaque. The mainstream approach waits until significant plaque buildup, heart attack, or stroke occurs before treating aggressively. Genomic data shows that maintaining low LDL throughout lifetime prevents heart disease more effectively than lowering LDL after events occur.
"If you lower LDL before you have a heart attack, it's very effective. If you have a heart attack and you lower LDL, it still has benefit, but once you have heart failure, there's no benefit to lowering LDL."
Davidson presents the 8 gram rule: 8 grams of cholesterol in a lifetime leads to heart disease. This can be calculated as:
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