相关实验视频

Updated: Jul 1, 2025

Assessing Activity-based Anorexia in Mice

Assessing Activity-based Anorexia in Mice

Published on: May 14, 2018

基于活动的厌食症的发展需要在两个中央扩展的杏仁核中的PKC-δ神经元

Wesley Ilana Schnapp¹, JungMin Kim², Yong Wang³

¹Department of Neuroscience, University of Arizona, Tucson, AZ 85721, USA; Graduate Interdisciplinary Program in Neuroscience, University of Arizona, Tucson, AZ 85721, USA.

|March 9, 2024

概括

研究人员确定了表达蛋白激酶C-delta (PKC-δ) 的特定杏仁体神经元,该神经元调节基于活动的厌食症 (ABA),这是神经性厌食症 (AN) 的动物模型. 切除这些神经元可以防止ABA,揭示了AN发育中的关键神经机制.

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.
行为科学行为科学

背景情况:

神经性厌食症 (AN) 是一种严重的精神疾病,其潜在的神经机制尚不清楚.
已知杏仁体中的蛋白激酶C-delta (PKC-δ) 表达神经元会影响食欲信号.

研究的目的:

研究PKC-δ神经元在中央扩展杏仁体 (EAc) 在基于活动的厌食症 (ABA) 的发展中的作用.
确定杏仁体中枢核 (CeA) 和结核床的圆区域 (ovBNST) 中PKC-δ神经元的特定亚群是否对ABA具有关键作用.

主要方法:

利用基因操纵在动物模型中选择性地切除CeA和ovBNST中的PKC-δ神经元.
监测养行为和轮子运行活动,以评估ABA发展.
在ABA进展期间测量PKC-δ神经元中的神经元活动.

主要成果:

在CeA和ovBNST中同时切除PKC-δ神经元完全阻止了ABA的发展.
单独对CeA或ovBNST中PKC-δ神经元的选择性切除并不能阻止ABA.
随着ABA的发展,在CeA和ovBNST中观察到PKC-δ神经元的活性增加.

结论:

在CeA和ovBNST内的PKC-δ神经元对于ABA的发展至关重要.
这些神经元调节食和活动行为,突出显示它们在AN中的复杂作用.
这些发现表明AN的异质病因涉及特定的杏仁体电路.

关键词:

科普:神经科学是什么意思基于活动的厌食症基于活动的厌食症神经性厌食症是一种神经性厌食症.斯特里亚终端体 (BNST) 的床核中枢桃体 (CeA) 的中部扩展的杏仁体饮食障碍是一种饮食障碍.能量的恒温是能量恒温.神经电路的神经电路.蛋白质激酶C-三角形

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

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...

Binge Eating Disorders

Binge Eating Disorders

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...

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...

cAMP-dependent Protein Kinase Pathways

cAMP-dependent Protein Kinase Pathways

Cyclic Adenosine Monophosphate (cAMP) is an essential second messenger that activates protein kinase A (PKA) and regulates various biological processes. A single epinephrine molecule binds to GPCR and activates several heterotrimeric G proteins, each stimulating multiple adenylyl cyclase, amplifying the signal, and synthesizing large numbers of cAMP molecules. Small changes in cAMP concentration affect PKA activity. The binding of four cAMP molecules induces a conformational change in PKA,...