相关实验视频

Updated: Jan 30, 2026

Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats

Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats

Published on: February 23, 2015

蛋白质学洞察力,对容易受到压力的雌性大鼠的灭绝记忆缺陷

Nashaly Irizarry-Méndez¹, Yelitza Acosta-Pierantoni¹, Alondra Diaz-Vazquez¹

¹Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico.

Frontiers in behavioral neuroscience

|January 29, 2026

概括

单次长期压力 (SPS) 通过改变内膜皮层蛋白质,损害了雌性大鼠的恐惧灭绝. 在这个区域准神经素或MAPT可以恢复灭绝记忆,这表明压力易感性的分子基础.

科学领域:

神经科学是一个神经科学.
分子生物学分子生物学
精神病学是一个精神病学.

背景情况:

暴露于压力会破坏恐惧的灭绝,这是与压力相关疾病有关的关键过程.
潜在的分子机制受损恐惧灭绝,特别是在女性,并没有很好地理解.
在压制恐惧反应方面,下边缘皮层至关重要.

研究的目的:

在单次长期应激 (SPS) 后,研究雌性大鼠下极膜皮层中的蛋白质变化.
确定有助于压力诱导的易感性或弹性恐惧灭绝的分子机制.
探索潜在的治疗目标,以改善在应激暴露后的灭绝记忆.

主要方法:

定量蛋白质组学使用SPS暴露后雌性大鼠内膜皮层样本的双重质量标签标签.
听觉恐惧调节和灭绝训练,以将老鼠分类为易感或弹性.
生物信息学对蛋白质组数据的分析和通过AAV-shRNA敲除特定基因的功能验证.

主要成果:

与性大鼠相比,敏感的雌性大鼠在下边皮层中表现出明显的蛋白质组概况.
不同表达的蛋白质,包括神经素和MAPT,与突触可塑性和记忆有关.
改变的途径涉及敏感个体的突触生成,内细胞分裂,信号和自.

结论:

阴下皮层中蛋白质表达的失调有助于雌性大鼠的灭绝记忆和应激易感性受损.
在下极膜皮层中的神经素和MAPT是旨在增强灭绝记忆的干预措施的潜在目标.
这些发现提供了神经生物学洞察力,了解女性对压力相关疾病的脆弱性.

关键词:

恐惧灭绝灭绝灭绝脑内膜下皮层的皮层.通过神经原蛋白.定量化的蛋白质组学.一个单一的长期压力.压力易感性应激易感性蛋白质是一种蛋白质.

更多相关视频

Assaying Locomotor, Learning, and Memory Deficits in Drosophila Models of Neurodegeneration

Assaying Locomotor, Learning, and Memory Deficits in Drosophila Models of Neurodegeneration

Published on: March 11, 2011

Detecting Behavioral Deficits in Rats After Traumatic Brain Injury

Detecting Behavioral Deficits in Rats After Traumatic Brain Injury

Published on: January 30, 2018

相关概念视频

Generalization, Discrimination, and Extinction

Generalization, Discrimination, and Extinction

Generalization, discrimination, and extinction are key concepts in operant conditioning that influence how behaviors are learned and maintained.
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...

Proteomics

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...

Infertility in Females

Infertility in Females

Female infertility is defined as the inability to conceive after a year of regular, unprotected intercourse and affects about 10–15% of couples worldwide. The primary cause of female infertility is ovulatory disorders, which hinder the release of eggs. These disorders can be classified as hypothalamic amenorrhea, polycystic ovarian syndrome (PCOS), premature ovarian failure, and hyperprolactinemic anovulation disorders.
Endometriosis, a condition characterized by abnormal growth of...

Magnetic Susceptibility and Permeability

Magnetic Susceptibility and Permeability

In linear magnetic materials, like paramagnets and diamagnets, magnetization is proportional to the magnetic field intensity. The constant of proportionality, a dimensionless number, is called magnetic susceptibility. The value of the susceptibility depends on the type of material.
When diamagnetic materials are placed under an external magnetic field, the moments opposite to the field are induced. Hence, the susceptibility for diamagnets has a minimal negative value of 10-5–10-6. Since...

External Female Genitals

External Female Genitals

The vulva encompasses the external structures of the female reproductive system. At the forefront is the monpubis, a cushion of fatty tissue atop the pubic bone. Once puberty sets in, this area typically grows hair. Extending from just behind the mons pubis are the labia majora (labia = 'lips'; majora = 'larger'), which are larger skin fs olds coated with hair. Nestled within are the labia minora (labia = 'lips'; minora = 'smaller'), which are thinner, more...

Disorders of the Female Reproductive System

Disorders of the Female Reproductive System

The female reproductive system can be affected by several disorders, including Premenstrual Syndrome (PMS), Premenstrual Dysphoric Disorder (PMDD), endometriosis, and various forms of cancer. PMS and PMDD are cyclical conditions that cause physical and emotional distress, with symptoms that include edema, mood swings, and food cravings. PMDD is a more severe form of PMS characterized by increased symptom severity that peaks during the luteal phase and tends to improve or resolve shortly after...