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Article Dissector: Acute resveratrol supplementation in coronary
artery…
Article Dissector: Acute resveratrol supplementation in coronary
artery disease: towards patient stratification
Introduction
Article Identifiers
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Authors: M. Diaza, A. Avilaa, H. Degensa, E. Coeckelberghsc, L. Vanheesc, V. Cornelissenc, and M. Azzawia
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Volume 54, Number 1, Pages 14–19
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PICOTS
P: 45-75 years old, have CAD, have PCI or CABG, clinically stable six weeks before trial
I: Short term, acute high-dose RV supplementation
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Objective
Assess the effects of acute RV supplementation on FMD and VO₂ kinetics in older CAD patients, stratified by PCI vs CABG
Study Design
Single-blind, placebo-controlled, crossover study
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Hypothesis/Rationale
Acute high-dose RV improves endothelial function (FMD) and VO₂ kinetics in older CAD patients following coronary revascularization.
Key Concepts/Definitions
Coronary Artery Disease (CAD): Plaque buildup in coronary arteries → reduces blood flow and oxygen delivery to myocardium
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Resveratrol (RV): Polyphenol with antioxidant, anti-inflammatory, and cardio-protective properties
Flow-Mediated Dilation (FMD): Non-invasive measure of endothelial function (NO-mediated vessel dilation)
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Percutaneous Coronary Intervention (PCI): Minimally invasive procedure that restores coronary blood flow using balloon angioplasty and/or stent placement
Coronary Artery Bypass Grafting (CABG): Surgical procedure that bypasses blocked coronary arteries using grafted vessels (restore myocardium blood flow)
**Discussion
Results
FMD (Endothelial function):
-Increased FMD in CABG patients
-Decreased FMD in PCI patients
-Effect depends on revascularization type
-Suggests subgroup-dependent response
VO₂ kinetics:
-No significant improvement in VO₂ kinetics
-No major change in MRT / oxygen deficit
-Exercise oxygen response unchanged (short-term)
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Conclusion
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Pertinent
Pertinent (+)
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Well tolerated, no adverse events
Strong crossover, placebo-controlled design
Pertinent (−)
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Small sample, short duration
Future Research
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Mechanisms (endothelium, inflammation)
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