Recruiting nowNot applicableInterventional
What this study is about
This study aims to investigate how moderate wine consumption influences circulating extracellular vesicles (EVs) in healthy adults. EVs are small particles released by cells that carry proteins, lipids, and genetic material, and play important roles in communication between cells. Participants will consume a single serving of red or white wine, and blood samples will be collected before and after consumption to study changes in the composition and function of EVs. The study will also assess how these EVs affect vascular, immune, and brain-related cells. The results are expected to improve our understanding of how moderate wine intake contributes to cardiovascular and brain health.
A promising-looking record is not the same as confirmed eligibility. The study team must review the full criteria and current recruitment status.
Basic eligibility
Age35 Years to 36 Years
SexAll
Healthy volunteersAccepted
ConditionAtherosclerosis Cardiovascular Disease, Obesity, Metabolic Syndrome, Metabolic Disorders, Inflammation, Neurodegeneration, Neurodegenerative Disease, Alzheimer s Disease
Full registry criteria
Inclusion Criteria * Healthy adult men and women aged 35 to 65 years. * Body Mass Index (BMI) between 18.5 and 29.9 kg/m². * Non-smokers or ex-smokers for at least 12 months. * Moderate alcohol consumers, defined as ≤2 units/day for men and ≤1 unit/day for women. * Normal fasting glucose and lipid profile at screening. * Willing and able to refrain from alcohol, polyphenol-rich foods, and intense exercise for 48 hours before each study visit. * Able to understand the study procedures and provide written informed consent. Exclusion Criteria * History or clinical evidence of cardiovascular, hepatic, renal, thyroid, gastrointestinal, or metabolic diseases (including diabetes, dyslipidemia, or hypertension). * Use of medications or supplements known to affect glucose, lipid, or inflammatory metabolism (e.g., statins, corticosteroids, anti-inflammatory drugs). * Pregnancy or breastfeeding. * Recent blood donation (within the last 3 months) or planned blood donation during the study period. * Major weight change (\>5% of body weight) within the last 3 months. * Participation in another clinical or biomedical study within the previous 3 months. * Known allergy or intolerance to wine, alcohol, or its components (e.g., sulfites). * History of alcohol abuse or inability to abstain from alcohol outside the study context. * Reluctance to receive information about incidental health findings arising from the study. * Any condition judged by the investigators to limit compliance or increase study risk (e.g., psychiatric disorders, inability to adhere to fasting requirements).
Treatments and study arms
White Wine
Dietary Supplement
Chardonnay, 4 mL/kg body weight
Red Wine
Dietary Supplement
Cabernet Sauvignon, 4 mL/kg body weight
Water
Dietary Supplement
Still water, 4 mL/kg body weight
Primary outcomes
Concentration of circulating extracellular vesiclesBaseline (0 hours), postprandial peak (2 hours after beverage intake), and post-peak (6 hours after beverage intake).Concentration of plasma-derived extracellular vesicles measured after acute intake of red wine, white wine, or water. Extracellular vesicles will be isolated by immunoaffinity methods and quantified using nanoparticle-based analysis. Results will be expressed as particles per milliliter (particles/mL).
Mean size of circulating extracellular vesiclesBaseline (0 hours), postprandial peak (2 hours after beverage intake), and post-peak (6 hours after beverage intake).Mean diameter of plasma-derived extracellular vesicles measured after acute intake of red wine, white wine, or water. Extracellular vesicle size will be assessed using dynamic light scattering. Results will be expressed in nanometers (nm).
