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临床试验/NCT01479699
NCT01479699已完成不适用

Absorption and Metabolism of Olive Leaf Extract and Its Effect on Vascular Reactivity and Cytokine Concentrations

University of Reading2 个研究点 分布在 1 个国家目标入组 18 人开始时间: 2011年6月最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
18
试验地点
2
主要终点
Absorption and metabolism

研究概览

简要总结

The purpose of this study is to determine how olive leaf is absorbed and metabolised and also whether it has any effect on the elasticity of blood vessels and the immune system.

详细描述

The purpose of this study is to determine how olive leaf is absorbed and metabolised and also whether it has any effect on vascular function and cytokine concentrations.

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
19 Years 至 40 Years(Adult)
性别
All
接受健康志愿者

入选标准

  • 19-40 years, non-smokers, able to swallow capsules, have a Body Mass Index (BMI) of 18.5-30, have a normal liver function and haematology and a max alcohol intake of <21 units/week

排除标准

  • Those who suffer from any form of disease, including endocrine disease, liver disease, diabetes mellitus, myocardial infarction, blood clotting disorder, reproductive disorder, gastrointestinal disease or a chronic gastrointestinal disorder.
  • Individuals who are vegetarian, have dietary restrictions or on a weight reducing diet will not be recruited.
  • Subjects who have been taking antibiotics in previous 3 months before study will not be included in the study
  • Females who may be pregnant, or if of childbearing potential and are not using effective contraceptive precautions will be excluded.
  • Blood pressure > 150/90 mmHg
  • Haemoglobin < 125 g/l for male, < 110 g/l for female
  • Gamma GT (liver enzymes) > 80 IU/l
  • Cholesterol > 6.5 mmol/l
  • Had suffered a myocardial infarction or stroke in the previous 12 months
  • On any lipid-modifying medication
  • On any medication affecting blood clotting
  • Individuals taking vitamin and/or fish oil supplements

结局指标

主要结局

Absorption and metabolism

时间窗: 0. 0.5, 1, 1.5, 2, 3, 4, 6, 8 hours post ingestion (blood) 0, 0-4, 4-8 and 8-24 hours post ingestion (urine)

Olive leaf polyphenol metabolites measured in blood and urine samples

次要结局

  • Vascular function(0, 2, 4, 6 hours post ingestion (LDI) 0, 0.5, 1, 1.5, 2, 3, 4, 6 and 8 hours post ingestion (DVP))
  • Cytokine concentration(0, 1, 3 and 6 hours post ingestion)

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Jeremy Paul Edward Spencer

Professor of Biochemistry

University of Reading

研究点 (2)

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