使用功能 MRI 研究食物摄入的享乐和稳态调节
能量摄入的生理调节——食品印刷研究确定了人类食物摄入调节的内脏感受、稳态和享乐成分的激素和神经足迹
The purpose of this study is to investigate how gut hormones and brain areas respond differently to gastric distention, tasteless calories, or palatable food and how this alters appetite.
研究概览
地位
条件
研究类型
注册 (估计的)
阶段
- 不适用
联系人和位置
学习地点
-
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Minnesota
-
Rochester、Minnesota、美国、55905
- Mayo Clinic Rochester
-
-
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- BMI 18-25 kg/m^2.
- Weight stable for 3 months prior to study entry.
- For females: study days will be scheduled during the follicular phase of their menstrual cycle (i.e., the first 13 days (about 2 weeks) of the cycle).
- Able to provide written informed consent prior to any study procedures and be willing and able to follow study procedures..
- Ability to perform light to moderate physical activity.
Exclusion Criteria:
- Any contraindication for MRI scanning.
- Any history of childhood (> 95th percentile) or adult obesity (BMI >30 kg/m^2).
- Claustrophobia.
- High intensity training or physical activity.
- Any contraindication for intragastric balloon insertion.
- Any allergies to the study meals.
- Any history of eating disorder.
- Any substance abuse disorder (including alcohol and tobacco).
- Any history of psychiatric disorders.
- Any cardiovascular, endocrine, pulmonary, neurological, or gastrointestinal comorbidities.
- Pregnancy or nursing.
- Any history of bariatric surgery or endoscopic bariatric procedure.
- Use of any medication or supplement that alters appetite.
- Patient has a known history of any condition or factor judged by the investigator to prevent participation in the study or which might hinder study adherence.
学习计划
研究是如何设计的？
设计细节
- 主要用途：支持治疗
- 分配：不适用
- 介入模型：单组作业
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
其他：Food-Print Main Arm
Functional Magnetic Resonance Imaging (pCASL-MRI) after Caloric and Volumetric stimulus in lean patients will be performed on all patients in the study |
MRI's will be performed at multiple points on each visit day. Intragastric Balloon will be placed during Visit 2 study day and inflated to maximum tolerated volume. Patient will then be scanned in the MRI.
其他名称：
Patient will ingest the tasteless elemental meal until their maximum level of fullness. Once full, the patient will be scanned in the MRI. Patient will ingest meal of their choice from a local food delivery service and eat until they reach their maximum level of fullness. Once full, the patient will be scanned in the MRI |
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 |
|---|---|---|
|
Difference in Cerebral Blood Flow related to hypothalamus
大体时间：1 month
|
The mean difference in cerebral blood flow (CBF) at fullness (satiation) and return to hunger (satiety) to the hypothalamic area. |
1 month
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Cerebral Bloodflow related in multiple brain areas
大体时间：1 month
|
The mean difference in cerebral blood flow (CBF) at fullness (satiation) and return to hunger (satiety) to the other brain areas related to food intake regulation. |
1 month
|
|
Cerebral Blood Flow between three stimuli
大体时间：1 month
|
The mean difference in cerebral blood flow (CBF) between the 3 different stimuli. |
1 month
|
|
Hormone level
大体时间：1 month
|
Differences in hormones levels (ghrelin, GLP-1, CCK, PYY, leptin, insulin, GIP, amylin) at each of the stages (I.e., baseline, fullness, maximal fullness) after the three different stimulations. These hormones will be compared before and after the same stimulation days. The hormone measurements on stimulation days will also be compared to each other. |
1 month
|
|
comparison of calories
大体时间：1 month
|
Correlation the caloric consumption to fullness, maximal fullness with degree of cerebral blood flow(CBF) change on PASL MRI. |
1 month
|
|
calorie corellation to hormones
大体时间：1 month
|
Correlation the caloric consumption to fullness, maximal fullness with changes in the hormonal levels (ghrelin, GLP-1, CCK, PYY, leptin, insulin, GIP, amylin). |
1 month
|
|
hormone level comparison
大体时间：1 month
|
Differences in the hormonal levels (ghrelin, GLP-1, CCK, PYY, leptin, insulin, GIP, amylin) between fullness and hunger after the three different stimulations. These hormones will be compared before and after the same stimulation days. The hormone measurements on stimulation days will also be compared to each other. |
1 month
|
|
Time differences in stimuli
大体时间：1 month
|
Differences in time to next meal after maximal fullness after the three different stimulations. |
1 month
|
|
Caloric consumption differences in stimuli
大体时间：1 month
|
Differences in the caloric consumption after maximal fullness after the three different stimulations. |
1 month
|
|
FitBit measured Physical Activity
大体时间：1 month
|
Measurement of daily physical activity during free-living conditions measured through the use of FitBit tracker over the duration of the study. |
1 month
|
合作者和调查者
赞助
调查人员
- 首席研究员：Andres Acosta, MD, PhD、Mayo Clinic
出版物和有用的链接
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (估计的)
研究完成 (估计的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
其他相关的 MeSH 术语
其他研究编号
- 21-010514
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)？
药物和器械信息、研究文件
研究美国 FDA 监管的药品
研究美国 FDA 监管的设备产品
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