相关实验视频

Updated: Jul 14, 2025

Assessing Activity-based Anorexia in Mice

Assessing Activity-based Anorexia in Mice

Published on: May 14, 2018

神经性厌食症中与体重状况相关的动态杏仁核变化是由莱普调解的

Marie-Louis Wronski¹, Fabio Bernardoni², Klaas Bahnsen²

¹Translational Developmental Neuroscience Section, TU Dresden, Dresden, Germany; Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.

Journal of the American Academy of Child and Adolescent Psychiatry

|October 5, 2023

概括

在神经性厌食症 (AN) 中恢复体重会增加杏仁核体积,特别是在恐惧和奖励处理区域. 然而,正常化还不完全,即使在长期康复后,一些体积仍然减少,这表明神经生物学变化持久.

科学领域:

神经科学是一个神经科学.
精神病学是一个精神病学.
神经成像是一种神经成像.

背景情况:

杏仁体综合体对于恐惧和奖励处理至关重要,在急性神经性厌食症 (AN) 中显示出改变的核体积.
之前的研究将减少的面-中介性杏仁体体积在AN中的降低与低血症联系起来,这是一种关键的神经内分泌特征.

研究的目的:

在重量恢复期间和之后对AN患者的杏仁核体积变化进行纵向研究.
检查这些体积变化与体重状况和瘦素水平的相关性.

主要方法:

使用FreeSurfer分析的纵向T1加权结构MRI扫描.
在急性疾病的AN患者 (n=110),康复的AN患者 (n=79) 和健康对照组 (n=271) 中,杏仁核体积的比较.
线性混合效应模型用于评估短期 (3个月) 和长期 (5年) 体重恢复的变化.

主要成果:

短期的体重恢复导致面膜-中枢杏仁核的体积增加 (科恩d 0.18-0.30).
体积度正常化是异质的,一些核只显示部分恢复.
在长期康复的患者 (d=0.36) 中,右前额桃体区域仍然减少.
莱普增加介导体重增加对特定杏仁核体积的影响.

结论:

罗斯特拉-中介性杏仁核体积随着重量恢复而增加,但并没有完全正常化.
莱普可能在杏仁核的恢复中发挥作用,超出了营养康复的范围.
这些发现突出了杏仁体基结构,瘦素动态和AN病理生理学之间的联系.

关键词:

杏仁核中的核.神经性厌食症是一种神经性厌食症.勒普丁是一种素.纵向的FreeSurfer 皮层下子细分短期和长期的重量恢复重量恢复.

更多相关视频

Using the Activity-based Anorexia Rodent Model to Study the Neurobiological Basis of Anorexia Nervosa

Using the Activity-based Anorexia Rodent Model to Study the Neurobiological Basis of Anorexia Nervosa

Published on: October 22, 2015

Fat Preference: A Novel Model of Eating Behavior in Rats

Fat Preference: A Novel Model of Eating Behavior in Rats

Published on: June 27, 2014

相关概念视频

Regulation of Food Intake

Regulation 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...

Anorexia Nervosa

Anorexia Nervosa

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...

Role of Amygdala in Memory

Role of Amygdala in Memory

The amygdala is a small, almond-shaped structure responsible for processing and storing memories, particularly those linked to emotions like fear and stress. It plays an essential role in the brain's response to emotionally significant events and often enhances memory formation by triggering stress hormone release. The amygdala is vital for encoding and retrieving memories associated with fear or stress, a process that is adaptive by helping organisms avoid dangerous situations.
One of the...

Functional Brain Systems: Limbic System

Functional Brain Systems: Limbic System

The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...

Bulimia Nervosa

Bulimia Nervosa

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...

Physiology of Emotion

Physiology of Emotion

The physiology of emotions is a multifaceted process involving the autonomic nervous system, brain structures, hormones, and neurotransmitters. This intricate interplay dictates how emotions manifest in the body and influence behavior.
Autonomic Nervous System
The autonomic nervous system (ANS) plays a critical role in emotional responses by regulating involuntary physiological functions. It consists of two main components: the sympathetic and parasympathetic systems. The sympathetic system...