Promoting Gastrointestinal Health and Reducing Subclinical Inflammation in Obese Individuals
2019年5月22日 更新者：Devin Rose、University of Nebraska Lincoln
Promoting Gastrointestinal Health and Reducing Subclinical Inflammation in Obese Individuals Through Intake of Whole Wheat Products in Comparison With Fruits and Vegetables
This study evaluates the impact of increased intake of fruits and vegetables and whole grains on markers of inflammation and gut microbial composition.
The treatment groups are 3 servings of whole grain per day; 5 servings of fruits and vegetables per day; and a control (3 servings of refined grains per day provided).
研究概览
详细说明
Literature data suggests that fruits and vegetables and whole grains containing dietary fiber and other nutrients are important for maintaining beneficial microbes in the gut.
The presence of beneficial microbes in the gut may mediate the subclinical inflammation experienced in metabolic disease.
In this project, overweight or obese participants with low intakes of fruits and vegetables or whole grains will increase their intake of these foods to recommended levels.
Changes in markers of inflammation and gut microbiota composition will be determined to assess and compare the potential impact of these foods on metabolic disease.
研究类型
介入性
注册 (实际的)
52
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
-
-
Nebraska
-
Lincoln、Nebraska、美国、68588
- Food Innovation Center
-
-
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 及以上 (成人、年长者)
接受健康志愿者
是的
有资格学习的性别
全部
描述
Inclusion Criteria:
- Obese or overweight men or women (body mass index, BMI, ≥25 kg/m2)
- Free of known gastrointestinal disease
- No supplements use (excluding multivitamin)
- Participate in less than 1 h of exercise per week
- Have not taken antibiotics in the last six months
Exclusion Criteria:
- Men and women with fruits and vegetable intake exceeding 2 servings/day
- Men and women with whole grain intakes exceeding 1 serving/day
- Pregnant
- Do not fit the inclusion criteria
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：支持治疗
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：Control
3 servings of refined grains per day.
|
3 servings of refined grain
|
|
实验性的：Fruits and Vegetables
5 servings of fruits and vegetable per day.
|
5 servings of fruits or vegetables
|
|
实验性的：Whole Grain
3 servings of whole grains per day.
|
3 servings of whole grain
|
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Change in Interleukin-6 (Value at Week 8 Minus Value at Week 0)
大体时间：8 weeks
|
Plasma samples collected from participants at the beginning (week 0) and end of the study (week 8) will be analyzed for interleukin-6 concentrations using an enzyme linked immunosorbent assay.
Changes in the concentrations of these inflammatory markers will be determined from week 0 to week 8.
|
8 weeks
|
|
Change in Tumor Necrosis Factor-α (Value at Week 8 Minus Value at Week 0)
大体时间：8 weeks
|
Plasma samples collected from participants at the beginning (week 0) and end of the study (week 8) will be analyzed for tumor necrosis factor-α concentrations using an enzyme linked immunosorbent assay.
Changes in the concentrations of these inflammatory markers will be determined from week 0 to week 8.
|
8 weeks
|
|
Change in High Sensitivity C-reactive Protein (Value at Week 8 Minus Value at Week 0)
大体时间：8 weeks
|
Plasma samples collected from participants at the beginning (week 0) and end of the study (week 8) will be analyzed for high sensitivity C-reactive protein concentrations using an enzyme linked immunosorbent assay.
Changes in the concentrations of these inflammatory markers will be determined from week 0 to week 8.
|
8 weeks
|
|
Change in Lipopolysaccharide Binding Protein (Value at Week 8 Minus Value at Week 0)
大体时间：8 weeks
|
Plasma samples collected from participants at the beginning (week 0) and end of the study (week 8) will be analyzed for lipopolysaccharide binding protein concentrations using an enzyme linked immunosorbent assay.
Changes in the concentrations of these inflammatory markers will be determined from week 0 to week 8.
|
8 weeks
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Change in Gut Microbiota Shannon's Alpha Diversity (Value at Week 8 Minus Value at Week 0)
大体时间：8 weeks
|
The Shannon Diversity Index is a quantitative measure that reflects how many different bacterial species there are in a sample.
The greater the index, the more diverse the gut microbiota.
A negative change indicates a decrease in diversity and a positive change indicates an increase in diversity.
|
8 weeks
|
|
Change in Fecal Short Chain Fatty Acids (Value at Week 8 Minus Value at Week 0)
大体时间：8 weeks
|
Short-chain fatty acids (SCFAs) are the end products of fermentation of dietary fibers by the anaerobic intestinal microbiota.
SCFAs have been shown to exert multiple beneficial effects on mammalian energy metabolism.
|
8 weeks
|
|
Change in Branched Chain Fatty Acids (Value at Week 8 Minus Value at Week 0)
大体时间：8 weeks
|
Branched chain fatty acids (BCFA) are mostly saturated fatty acids (SFA) with one or more methyl branches on the carbon chain.
BCFAs were extracted from stool samples and measured using gas chromatography.
|
8 weeks
|
其他结果措施
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Change in Body Mass Index (Value at Week 8 Minus Value at Week 0)
大体时间：8 weeks
|
Body mass index will be measured on participants at the beginning (week 0) and end of the study (week 8).
Changes in body mass index will be determined.
|
8 weeks
|
合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Devin J Rose, PhD、University of Nebraska
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (实际的)
2015年10月1日
初级完成 (实际的)
2017年6月1日
研究完成 (实际的)
2017年7月1日
研究注册日期
首次提交
2015年11月4日
首先提交符合 QC 标准的
2015年11月9日
首次发布 (估计)
2015年11月11日
研究记录更新
最后更新发布 (实际的)
2019年6月5日
上次提交的符合 QC 标准的更新
2019年5月22日
最后验证
2019年5月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.