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John Richard Guyton

Professor Emeritus of Medicine
Medicine, Endocrinology, Metabolism, and Nutrition
Duke Box 3510, Durham, NC 27710
281 Baker House, Brown Zone-Duke South, Durham, NC 27710

Overview


Current research efforts focus on the role of niacin in clinical lipid practice. Despite the ending of a large clinical trial due to lack of benefit, niacin remains the second best lipid-modifying drug after statins. Why this trial did not replicate earlier success with niacin is a matter of great interest. Counterregulatory hormone responses may provide the answer. Another research focus is weight loss counseling in the busy clinic setting. Low glycemic dietary advice achieved average long-term weight loss of 3% (beyond 1 year) in a recently published study. One in four patients had long-term weight loss greater than 6%.

Dr. Guyton is recognized nationally as an expert in clinical management of lipid disorders and a leader in postgraduate education in this area. Both nationally and internationally, Dr. Guyton is known for his earlier work on lipid deposition in the arterial wall.

Key words: atherosclerosis, lipoproteins, statins, niacin, triglycerides, low density lipoproteins, high density lipoproteins

Current Appointments & Affiliations


Professor Emeritus of Medicine · 2023 - Present Medicine, Endocrinology, Metabolism, and Nutrition, Medicine

In the News


Published August 31, 2015
New cholesterol drug restores hope for patients

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Recent Publications


The role of nutrition-related clinical trials in informing dietary recommendations for health and treatment of diseases.

Journal Article J Clin Lipidol · 2025 BACKGROUND: Dietary guidance is based on a robust evidence base including high-quality clinical trials, of which some have been designed to establish causal relationships between dietary interventions and atherosclerotic cardiovascular disease (ASCVD) risk ... Full text Link to item Cite

Nonlinearity of the inverse relationship between high-density lipoprotein (HDL) cholesterol and incident cardiovascular risk: Is it time to revisit the "HDL hypothesis"?

Journal Article J Clin Lipidol · 2025 BACKGROUND: Low levels of high-density lipoprotein cholesterol (HDL-C) are clearly associated with atherosclerotic cardiovascular disease (ASCVD), but the risk curve is not well defined, especially at very high and low HDL-C levels. Current proportional ha ... Full text Link to item Cite
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Recent Grants


EFC13786: Efficacy and Safety of Alirocumab in Patients with Primary Hypercholesterolemia not Treated with a Statin

Clinical TrialPrincipal Investigator · Awarded by Sanofi US · 2014 - 2018

ODYSSEY OLE - LTS13463 : Open-Label Extension of EFC12492 and EFC12732

Clinical TrialPrincipal Investigator · Awarded by Sanofi US · 2014 - 2018

Lipoprotein Oxidation And Atherosclerosis

ResearchPrincipal Investigator · Awarded by National Institutes of Health · 1991 - 1995

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Education, Training & Certifications


Harvard University · 1973 M.D.
University of Mississippi · 1969 B.S.