相关实验视频
Updated: Aug 1, 2026
05:57
Fat Preference: A Novel Model of Eating Behavior in Rats
Published on: June 27, 2014
在遗传肥胖小鼠 (ob/ob) 和大鼠 (fa/fa) 中,β-Endorphin与过度饮食有关
Science (New York, N.Y.)
|December 1, 1978
概括
片对手纳洛减少了肥胖小鼠和老鼠的过度饮食. 肥胖者有更高的β-endorphin水平,这表明它在肥胖中的作用.
科学领域:
- 神经内分泌学神经内分泌学
- 肥胖问题研究研究
- 药理学 药理学是指药理学的学科.
背景情况:
- 遗传肥胖的动物 (ob/ob小鼠,fa/fa大鼠) 显示过度进食.
- 内源性阿片类药物在肥胖中的作用尚未完全理解.
研究的目的:
- 为了研究纳洛对肥胖动物过度饮食的影响.
- 为了检查肥胖和瘦动物中的β-endorphin和Leu-enkephalin水平.
主要方法:
- 纳洛的管理,一个阿片类对抗剂.
- 在垂体,血和脑组织中测量β-endorphin和Leu-enkephalin.
主要成果:
- 纳洛在遗传肥胖的小鼠和老鼠中选择性地消除了过度饮食.
- 在这两种肥胖物种的脑垂体中发现了高度的β-endorphin.
- 肥胖的老鼠在血中呈现了升高的β-endorphin,但大脑水平没有变化.
结论:
- 过多的垂体β-endorphin可能会导致吃得太多和肥胖综合征.
- 片途径与食欲和体重的调节有关.
相关概念视频
01:30Regulation of Food Intake
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
01:24Obesity
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in adipocytes...