Ability of Grape Seed Proanthocyanidins to Reduce Postprandial Triglycerides in Humans
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 16
- 试验地点
- 4
- 主要终点
- Area under the curve of plasma triglycerides concentration
研究概览
简要总结
Grape seed proanthocyanidins have been reported to possess a hypotriglyceridemic effect after an acute or chronic consumption in rodents. In this study, we aimed to investigate the effects of an acute consumption of proanthocyanidins before a breakfast meal in humans. Moreover, the mechanisms implicated in the reduction of plasma triglycerides levels by grape seed proanthocyanidins in humans should be elucidated as well as its activity on vascular function.
详细描述
The intervention will consist in the administration of 2 capsules containing the grape seed proanthocyanidins extract or 2 empty capsules (placebo) just before breakfast, which will consist of 100g of white bread, 75g of salami, 50g of fatty cheese, 125g of yogurt (10% fat), 25ml of olive oil and water ad libitum. The nutritional composition of this meal is as follows: 1.200 Kcal of energy content, 15% of energy from proteins, 22% from carbohydrates and 63% from fat (35% saturated fat), and 120mg of cholesterol. Blood samples will be taken at point 0.5,1,2,3 and 6 hours after breakfast. Moreover, urine samples will be collected at time 0 and 6 hours.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Basic Science
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 20 Years 至 40 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Adults between the ages of 20 and 40
- •Signing the informed consent
排除标准
- •Body mass index (BMI) lower than 18.5 or greater than 27 Kg/m2
- •Regular medication
- •Consumption of medication during the last week
- •Following a weight-loss diet
- •Vegetarians
- •Abnormal glucose levels
- •Cardiovascular disease
- •Gastrointestinal disease
- •Nuts allergy
结局指标
主要结局
Area under the curve of plasma triglycerides concentration
时间窗: 0-180 minutes
次要结局
- Blood pressure(0-0.5-1-2-3-6 hours)
- Endothelial function (assessed by ischemic reactive hyperemia)(0-0.5-1-2-3-6 hours)
- Blood lipid levels, markers of inflammation and oxidation(0-0.5-1-2-3-6 hours)
- Plasma levels of procyanidins metabolites(0-0.5-1-2-3-6 hours)
- Markers of cholesterol metabolism in PBMCs (mRNA and protein).(0-0.5-1-2-3-6 hours)
- Membrane lipid composition of erythrocytes and oxidation markers.(0-0.5-1-2-3-6 hours)
- Non-targeted metabolomics and 8-epi-prostaglandin-F2α levels (in urine)(0-6 hours)