Heart Disease · 12 cited studies

Research on Heart Disease Mechanism

The heart-disease-mechanism literature is more nuanced than either side of the public conversation suggests. The mainstream LDL-causal model (Ference 2017 European Heart Journal) is supported by Mendelian randomization plus statin RCTs in primary prevention. Sniderman's 2019 JAMA Cardiology review argues ApoB particle count is a more accurate marker than LDL-C alone. PREDIMED (Estruch 2018) and the Lyon Diet Heart Study (de Lorgeril 1999) demonstrated Mediterranean dietary patterns reduce events ~30–70%. Yet Ravnskov's 2016 BMJ Open systematic review found inverse LDL-mortality association in the elderly. Byrne 2022 (JAMA Internal Medicine) found absolute mortality reduction from statins is small (~0.8%) and not strongly tied to LDL drop. Editorial position: ApoB and lipoprotein(a) are useful markers; food pattern dominates fatty-acid composition; statins matter most for secondary prevention. Below: the literature on both sides.

  • Strong evidence2023

    Semaglutide and Cardiovascular Outcomes in Obesity without Diabetes (SELECT)

    Lincoff AM et al. · New England Journal of Medicine

    SELECT trial: semaglutide reduced major adverse cardiovascular events by 20% in obese non-diabetic adults.

    GLP-1 DrugsHeart DiseaseSource ↗
  • Contested2017

    Associations of fats and carbohydrate intake with cardiovascular disease and mortality in 18 countries (PURE)

    Dehghan M et al. · The Lancet

    PURE study: high carbohydrate intake associated with higher mortality; high fat intake — including saturated — was not.

    Seed OilsHeart DiseaseSource ↗
  • Contested2020

    Saturated Fats and Health: A Reassessment and Proposal for Food-Based Recommendations

    Astrup A et al. · Journal of the American College of Cardiology

    Reassessment paper: total saturated-fat intake itself is not associated with CVD; food matrix and replacement food matter more.

    Seed OilsHeart DiseaseSource ↗
  • Contested2014

    Association of dietary, circulating, and supplement fatty acids with coronary risk: a systematic review and meta-analysis

    Chowdhury R et al. · Annals of Internal Medicine

    Meta-analysis: no clear support for replacing saturated fat with polyunsaturated fat to reduce coronary risk.

    Seed OilsHeart DiseaseSource ↗
  • Mechanism only1994

    Stroke in Papua New Guinea (Kitava study): the importance of cardiovascular risk factors in non-Westernized populations

    Lindeberg S · Comparative Studies in Health Sciences and Anthropology

    Kitava observational study: traditional Melanesian population had near-zero CVD on a starchy whole-food diet.

    Ancestral DietHeart DiseaseSource ↗
  • Contested2016

    Lack of an association or an inverse association between low-density-lipoprotein cholesterol and mortality in the elderly: a systematic review

    Ravnskov U et al. · BMJ Open

    Systematic review: LDL-C inversely associated with all-cause mortality in adults over 60 — challenges the LDL-causes-CHD model.

    Heart DiseaseSource ↗
  • Moderate evidence1992

    Concerning the possibility of a nut

    Castelli WP · Archives of Internal Medicine

    Framingham observation: those with the lowest cholesterol diet ate the most fat — relationship is more complex than a single number.

    Heart DiseaseSource ↗
  • Moderate evidence2022

    Evaluating the association between low-density lipoprotein cholesterol reduction and relative and absolute effects of statin treatment: a systematic review and meta-analysis

    Byrne P et al. · JAMA Internal Medicine

    Meta-analysis: absolute reduction in mortality from statins is small (~0.8%) and not strongly tied to LDL drop.

    Heart DiseaseSource ↗
  • Strong evidence2017

    Low-density lipoproteins cause atherosclerotic cardiovascular disease

    Ference BA et al. · European Heart Journal

    Mendelian-randomization + RCT consensus: LDL particles are causally linked to ASCVD in primary prevention.

    Heart DiseaseSource ↗
  • Strong evidence2018

    Primary Prevention of Cardiovascular Disease with a Mediterranean Diet Supplemented with Extra-Virgin Olive Oil or Nuts (PREDIMED)

    Estruch R et al. · New England Journal of Medicine

    PREDIMED RCT: Mediterranean diet with olive oil or nuts reduced major CV events by ~30% in high-risk adults.

    Heart DiseaseSource ↗
  • Strong evidence1999

    Mediterranean diet, traditional risk factors, and the rate of cardiovascular complications after myocardial infarction (Lyon Diet Heart Study)

    de Lorgeril M et al. · Circulation

    Lyon Diet Heart Study: Mediterranean pattern reduced cardiac events ~70% vs prudent post-MI diet over 4 years.

    Heart DiseaseSource ↗
  • Strong evidence2019

    Apolipoprotein B Particles and Cardiovascular Disease: A Narrative Review

    Sniderman AD et al. · JAMA Cardiology

    ApoB particle count is a more accurate marker of CV risk than LDL-C alone — every atherogenic particle has one ApoB.

    Heart DiseaseSource ↗

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