相关实验视频
Updated: Jan 10, 2026

08:26
Assessing Activity-based Anorexia in Mice
Published on: May 14, 2018
13.0K
在急性与严重和持久性神经性厌食症之间,微生物组和代谢干扰
Petra Prochazkova1, Janet Jezkova2,3, Radka Roubalova2
1Institute of Microbiology of the Czech Academy of Sciences, Prague 4, Czech Republic. kohler@biomed.cas.cz.
NPJ biofilms and microbiomes
|November 26, 2025
概括
严重而持久的神经性厌食症 (SEAN) 显示出渐进的肠道微生物组和代谢物变化,包括较低的GABA和短链脂肪酸,影响肠-大脑轴. 这些变化可能会延续这种慢性饮食障碍.
科学领域:
- 胃肠病学 胃肠病学
- 精神病学是一个精神病学.
- 微生物组研究 微生物组研究
背景情况:
- 神经性厌食症 (AN) 显著改变肠道微生物群和新陈代谢.
- 慢性形式,严重而持久的神经性厌食症 (SEAN),对微生物组动态的理解较少.
- 以前的研究主要集中在AN的急性阶段.
研究的目的:
- 在急性AN,SEAN和健康对照中描述肠道微生物群组成和宿主代谢概况.
- 在SEAN.中调查临床参数与微生物组/代谢物改变之间的关系.
- 在慢性AN中探索肠-大脑轴失调.
主要方法:
- 对于肠道微生物组成的16S rRNA基因扩增序列测序.
- 质谱测量用于血清和便代谢物分析.
- 对临床,人体测量,生化和精神病学参数进行全面评估.
主要成果:
- 在SEAN患者中,抗抑郁药的使用率和终身压力暴露率较高.
- 在两组AN中都观察到减少的α多样性和独特的微生物群落,在SEAN中变化更大.
- 两组AN的血清和便中的γ-氨基黄油酸 (GABA) 和短链脂肪酸都较低,这表明微生物功能受损和肠-大脑轴调节失调.
- 在SEAN中肠道脂肪酸结合蛋白的升高表明粘膜损伤.
结论:
- SEAN与微生物群与宿主相互作用的渐进,功能相关的变化有关.
- 这些肠道微生物组和代谢变化可能反映并有助于SEAN的持续性.
- 这些发现强调了肠-大脑轴在慢性饮食障碍中的作用.
更多相关视频
相关概念视频
Anorexia Nervosa
897
Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
897
Bulimia Nervosa
656
Bulimia nervosa is a complex and severe eating disorder characterized by a cyclical pattern of binge-and-purge eating pattern. It generally involves an episode of binge eating, followed by compensatory behaviors such as vomiting, excessive exercise, laxative use, or fasting, to prevent weight gain. Despite often maintaining a normal weight, individuals with bulimia are intensely preoccupied with their body image and harbor an overwhelming fear of gaining weight. This can contribute to the...
656
Binge Eating Disorders
403
Binge eating disorder is a significant mental health condition characterized by recurrent episodes of excessive food consumption within a short period, accompanied by a perceived loss of control over eating behavior. Unlike occasional overeating, binge eating disorder is marked by distressing emotions such as guilt, shame, and anxiety following binge episodes. The disorder affects individuals across different ages and backgrounds, with profound implications for physical and psychological...
403
Microbial Nutrition
1.0K
Organisms exhibit remarkable metabolic diversity, categorized based on how they acquire energy and carbon. These strategies enable survival in various ecological niches and are essential for maintaining energy flow and nutrient cycling within ecosystems.Energy and Carbon SourcesOrganisms are classified as phototrophs or chemotrophs based on energy acquisition. Phototrophs use light as their energy source, while chemotrophs rely on oxidizing chemical compounds. Further differentiation arises...
1.0K
Overview of Protein Metabolism
3.6K
Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
3.6K
Metabolic States of the Body: Fasting and Starvation
2.7K
During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...
2.7K

