相关实验视频

Updated: May 20, 2025

BS3 Chemical Crosslinking Assay: Evaluating the Effect of Chronic Stress on Cell Surface GABAA Receptor Presentation in the Rodent Brain

BS3 Chemical Crosslinking Assay: Evaluating the Effect of Chronic Stress on Cell Surface GABAA Receptor Presentation in the Rodent Brain

Published on: May 26, 2023

加斯特罗丁通过cAMP/PKA/CREB信号通路预防压力诱导的突触可塑性损伤和行为功能障碍

Zhihuang Zhao¹, Pei Liu¹, Haili Zhang¹

¹Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.

Phytomedicine : international journal of phytotherapy and phytopharmacology

|March 26, 2025

概括

加斯特罗丁 (GAS) 通过改善小鼠的突触可塑性和认知功能来预防慢性压力. 这种天然化合物激活cAMP/PKA/CREB通路,为压力诱导的神经疾病提供了有前途的治疗方法.

科学领域:

神经科学是一个神经科学.
药理学药理学是指药理学的学科.
分子生物学分子生物学

背景情况:

慢性压力会损害突触可塑性,导致抑郁,焦虑和认知缺陷.
加斯特罗丁 (GAS) 是来自Gastrodiae Rhizoma的一种神经保护性化合物,显示出潜在的压力诱导的神经功能障碍.
GAS在预防压力诱导的突触可塑性损伤方面的机制需要进一步研究.

研究的目的:

研究GAS对突触可塑性的保护作用,以应对慢性压力.
阐明GAS作用的基础细胞和分子机制.

主要方法:

在C57BL/6J小鼠中的慢性压力模型.
通过戈尔吉染色和免疫组织化学评估突触可塑性.
对抑郁,焦虑和认知功能进行行为分析.
使用代谢学,转录学,西方抹杀和信号阻断剂对分子途径的研究.

主要成果:

慢性压力减少了树突复杂性,脊柱密度和突触功能,导致认知障碍和抑郁行为.
GAS治疗显著改善了压力诱导的突触可塑性损伤,行为缺陷和认知衰退.
气体激活了海马神经元中的cAMP/PKA/CREB信号通路,调解了其保护作用.

结论:

气体减轻压力诱导的突触可塑性损伤和行为功能障碍.
激活cAMP/PKA/CREB信号通路是GAS神经保护的一个关键机制.
GAS代表了一种有前途的天然化合物,用于管理与压力相关的神经疾病.

关键词:

慢性压力是一种慢性压力.认知能力下降认知能力下降抑郁症抑郁症抑郁症消化剂是指消化剂中的一种.突触性可塑性突触性可塑性在cAMP/PKA/CREB路径中.

更多相关视频

A Chronic Immobilization Stress Protocol for Inducing Depression-Like Behavior in Mice

A Chronic Immobilization Stress Protocol for Inducing Depression-Like Behavior in Mice

Published on: May 15, 2019

Restraint to Induce Stress in Mice and Rats

Restraint to Induce Stress in Mice and Rats

Published on: December 6, 2024

相关概念视频

GPCRs Regulate Adenylyl Cylase Activity

GPCRs Regulate Adenylyl Cylase Activity

Some GPCRs transmit signals through adenylyl cyclase (AC), a transmembrane enzyme. AC helps synthesize second messenger cyclic adenosine monophosphate (cAMP). AC catalyzes cyclization reaction and converts ATP to cAMP by releasing a pyrophosphate. The pyrophosphate is further hydrolyzed to phosphate by the enzyme pyrophosphatase, which drives cAMP synthesis to completion. However, cAMP is rapidly degraded to 5′ AMP by the enzymes phosphodiesterase (PDE), preventing overstimulation of...

GPCR Desensitization

GPCR Desensitization

G protein-coupled receptor (GPCR) signaling plays a crucial role in cell functioning. GPCR desensitization is an equally essential process. It allows cells to respond to changing environments and regain sensitivity to new stimuli while preventing unnecessary stimulation when no longer needed. Prolonged exposure to stimuli leads to GPCR desensitization. It involves blocking the receptors from binding and activating additional G proteins. This inhibits activation of downstream effectors, thereby...

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,...