Functional Magnetic Resonance Imaging of Human Hypothalamic Responses to Glucose, Fructose, Sucrose and Sucralose
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 16
- 试验地点
- 1
- 主要终点
- Hypothalamic function in response to glucose, fructose, sucrose, and sucralose
研究概览
简要总结
The study will consist of five occasions with one week in between. BOLD signal intensity of the hypothalamus will be measured using fMRI. Measurements will be done before and after drinking 300 ml plain water (reference) or water to which different sweeteners will be added.
详细描述
The hypothalamus is known to be important for control of feeding behaviour as well as the regulation of temperature. Functional magnetic resonance imaging (fMRI) is a non-invasive method, which detects transient haemodynamic changes in the brain, using blood oxygen level dependent (BOLD) signal differences.
In order to investigate the role of hypothalamic neural activity in response to different sweeteners, fMRI will be performed before, during and after ingestion of 300 ml plain water or 300 ml water containing 50 g glucose, 50 g fructose, 50 g sucrose or 0.33 g sucralose (high intensity sweetener not providing energy). All beverages will be consumed at 22 °C.
The study uses a randomized cross-over design in 16 healthy male subjects with a normal body weight. There will be an interval of at least one week between the five occasions.
Blood Oxygen Level Dependent signal intensity of the hypothalamus will be continuously measured for 21 minutes (5 minutes baseline, 4 minutes during drinking and 12 minutes after drinking).
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
- None
入排标准
- 年龄范围
- 18 Years 至 25 Years(Adult)
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Signed informed consent
- •Age between 18 and 25 years
- •BMI between 20 and 24 kg/m2
- •Length between 170 and 190 centimetres
排除标准
- •Diabetes or history of other disturbances of glucose metabolism (eg impaired glucose tolerance, hypoglycaemia).
- •Any genetic or psychiatric disease (e.g. fragile X syndrome, major depression) affecting brain
- •Any significant chronic disease
- •Renal or hepatic disease
- •Recent weight changes or attempts to lose weight (> 3 kg weight gain or loss, within the last 3 months)
- •Smoking (current or last 6 months)
- •Alcohol consumption of more than 21 units per week or use of recreational drugs at present or in the last year
- •Recent blood donation (within the last 2 months)
- •Recent participation in other biomedical research projects (within the last 3 months), participation in 3 or more biomedical research projects in one year
- •Contra-indication to MRI scanning:
- •Claustrophobia
- •Pacemakers and defibrillators
- •Nerve stimulators
- •Intracranial clips
- •Intraorbital or intraocular metallic fragments
- •Cochlear implants
- •Ferromagnetic implants
研究组 & 干预措施
Fructose-glucose-sucrose-water-sucralose
First fructose, then glucose, then sucrose, then plain water and then sucralose
干预措施: Water (Other)
Glucose-water-fructose-sucralose-sucrose
First glucose, then plain water, then fructose, then sucralose and then sucrose
干预措施: Glucose (Other)
Glucose-water-fructose-sucralose-sucrose
First glucose, then plain water, then fructose, then sucralose and then sucrose
干预措施: Fructose (Other)
Sucralose-water-sucrose-glucose-fructose
First sucralose, then plain water, then sucrose, then glucose and then fructose
干预措施: Fructose (Other)
Sucrose-fructose-sucralose-glucose-water
First sucrose, then fructose, then sucralose, then glucose and then plain water
干预措施: Water (Other)
Glucose-fructose-water-sucrose-sucralose
First glucose, then fructose, then plain water, then sucrose and then sucralose
干预措施: Water (Other)
Fructose-sucrose-glucose-sucralose-water
First fructose, then sucrose, then glucose, then sucralose and then plain water
干预措施: Fructose (Other)
water-sucralose-glucose-sucrose-fructose
First plain water, then sucralose, then glucose, then sucrose and then fructose
干预措施: Fructose (Other)
Glucose-water-fructose-sucralose-sucrose
First glucose, then plain water, then fructose, then sucralose and then sucrose
干预措施: Sucralose (Other)
Fructose-sucrose-glucose-sucralose-water
First fructose, then sucrose, then glucose, then sucralose and then plain water
干预措施: Sucrose (Other)
Sucralose-water-sucrose-glucose-fructose
First sucralose, then plain water, then sucrose, then glucose and then fructose
干预措施: Glucose (Other)
Sucrose-fructose-sucralose-glucose-water
First sucrose, then fructose, then sucralose, then glucose and then plain water
干预措施: Glucose (Other)
Glucose-fructose-water-sucrose-sucralose
First glucose, then fructose, then plain water, then sucrose and then sucralose
干预措施: Sucralose (Other)
water-sucralose-glucose-sucrose-fructose
First plain water, then sucralose, then glucose, then sucrose and then fructose
干预措施: Sucralose (Other)
Sucrose-sucralose-fructose-water-glucose
First sucrose, then sucralose, then fructose, then plain water and then glucose
干预措施: Glucose (Other)
Glucose-fructose-water-sucrose-sucralose
First glucose, then fructose, then plain water, then sucrose and then sucralose
干预措施: Glucose (Other)
Glucose-water-fructose-sucralose-sucrose
First glucose, then plain water, then fructose, then sucralose and then sucrose
干预措施: Water (Other)
Glucose-fructose-water-sucrose-sucralose
First glucose, then fructose, then plain water, then sucrose and then sucralose
干预措施: Sucrose (Other)
Water-glucose-sucralose-fructose-sucrose
First plain water, then glucose, then sucralose, then fructose and then sucrose
干预措施: Glucose (Other)
water-sucralose-glucose-sucrose-fructose
First plain water, then sucralose, then glucose, then sucrose and then fructose
干预措施: Sucrose (Other)
Sucrose-fructose-sucralose-glucose-water
First sucrose, then fructose, then sucralose, then glucose and then plain water
干预措施: Sucrose (Other)
Sucrose-fructose-sucralose-glucose-water
First sucrose, then fructose, then sucralose, then glucose and then plain water
干预措施: Fructose (Other)
Sucrose-sucralose-fructose-water-glucose
First sucrose, then sucralose, then fructose, then plain water and then glucose
干预措施: Sucrose (Other)
Sucralose-sucrose-water-fructose-glucose
First sucralose, then sucrose, then plain water, then fructose and then glucose
干预措施: Fructose (Other)
Sucralose-water-sucrose-glucose-fructose
First sucralose, then plain water, then sucrose, then glucose and then fructose
干预措施: Sucrose (Other)
Sucralose-sucrose-water-fructose-glucose
First sucralose, then sucrose, then plain water, then fructose and then glucose
干预措施: Glucose (Other)
Sucralose-sucrose-water-fructose-glucose
First sucralose, then sucrose, then plain water, then fructose and then glucose
干预措施: Sucralose (Other)
Sucralose-sucrose-water-fructose-glucose
First sucralose, then sucrose, then plain water, then fructose and then glucose
干预措施: Sucrose (Other)
Sucralose-sucrose-water-fructose-glucose
First sucralose, then sucrose, then plain water, then fructose and then glucose
干预措施: Water (Other)
Sucralose-water-sucrose-glucose-fructose
First sucralose, then plain water, then sucrose, then glucose and then fructose
干预措施: Sucralose (Other)
Glucose-fructose-water-sucrose-sucralose
First glucose, then fructose, then plain water, then sucrose and then sucralose
干预措施: Fructose (Other)
Fructose-sucrose-glucose-sucralose-water
First fructose, then sucrose, then glucose, then sucralose and then plain water
干预措施: Water (Other)
Fructose-glucose-sucrose-water-sucralose
First fructose, then glucose, then sucrose, then plain water and then sucralose
干预措施: Glucose (Other)
Water-glucose-sucralose-fructose-sucrose
First plain water, then glucose, then sucralose, then fructose and then sucrose
干预措施: Water (Other)
water-sucralose-glucose-sucrose-fructose
First plain water, then sucralose, then glucose, then sucrose and then fructose
干预措施: Glucose (Other)
Glucose-water-fructose-sucralose-sucrose
First glucose, then plain water, then fructose, then sucralose and then sucrose
干预措施: Sucrose (Other)
Sucralose-water-sucrose-glucose-fructose
First sucralose, then plain water, then sucrose, then glucose and then fructose
干预措施: Water (Other)
Water-glucose-sucralose-fructose-sucrose
First plain water, then glucose, then sucralose, then fructose and then sucrose
干预措施: Fructose (Other)
Sucrose-sucralose-fructose-water-glucose
First sucrose, then sucralose, then fructose, then plain water and then glucose
干预措施: Fructose (Other)
water-sucralose-glucose-sucrose-fructose
First plain water, then sucralose, then glucose, then sucrose and then fructose
干预措施: Water (Other)
Sucrose-sucralose-fructose-water-glucose
First sucrose, then sucralose, then fructose, then plain water and then glucose
干预措施: Sucralose (Other)
Water-glucose-sucralose-fructose-sucrose
First plain water, then glucose, then sucralose, then fructose and then sucrose
干预措施: Sucralose (Other)
Sucrose-sucralose-fructose-water-glucose
First sucrose, then sucralose, then fructose, then plain water and then glucose
干预措施: Water (Other)
Fructose-sucrose-glucose-sucralose-water
First fructose, then sucrose, then glucose, then sucralose and then plain water
干预措施: Sucralose (Other)
Fructose-sucrose-glucose-sucralose-water
First fructose, then sucrose, then glucose, then sucralose and then plain water
干预措施: Glucose (Other)
Fructose-glucose-sucrose-water-sucralose
First fructose, then glucose, then sucrose, then plain water and then sucralose
干预措施: Sucralose (Other)
Sucrose-fructose-sucralose-glucose-water
First sucrose, then fructose, then sucralose, then glucose and then plain water
干预措施: Sucralose (Other)
Fructose-glucose-sucrose-water-sucralose
First fructose, then glucose, then sucrose, then plain water and then sucralose
干预措施: Fructose (Other)
Water-glucose-sucralose-fructose-sucrose
First plain water, then glucose, then sucralose, then fructose and then sucrose
干预措施: Sucrose (Other)
Fructose-glucose-sucrose-water-sucralose
First fructose, then glucose, then sucrose, then plain water and then sucralose
干预措施: Sucrose (Other)
结局指标
主要结局
Hypothalamic function in response to glucose, fructose, sucrose, and sucralose
时间窗: Change from baseline (measured during 5 minutes before start of dinking) to post consumption (measured during 12 minutes after drinking). Drinking took 4 minutes.
fMRI will be performed before and after ingestion
次要结局
未报告次要终点
