Thalamic Circuits Underlying Opioid Seeking
阿片类药物寻求背后的丘脑回路
基本信息
- 批准号:9930863
- 负责人:
- 金额:$ 1.23万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-09-30 至 2023-06-30
- 项目状态:已结题
- 来源:
- 关键词:AffectiveAmygdaloid structureAnatomyAutomobile DrivingBehavioralBehavioral AssayBrainBrain MappingBrain regionCell NucleusChronicCuesDevelopmentDissectionDopamine D2 ReceptorDrug usageElectrophysiology (science)EmotionsEtiologyEventExposure toExtinction (Psychology)FOS geneInfusion proceduresLearningLifeLightLinkMaintenanceMapsMediatingMemoryMicroscopyMorphineMusNeuronsNucleus AccumbensOpiate AddictionOpioidOpioid AnalgesicsOpioid userOutputPathway interactionsPharmaceutical PreparationsPharmacogeneticsPhysiologicalProtocols documentationRelapseRetrievalRoleStructure of paraventricular nucleus of thalamusSynapsesSynaptic plasticityTestingThalamic structureTissuesTrainingUnited StatesViralWithdrawalWithdrawal SymptomWorkbasecell typecravingdesigner receptors exclusively activated by designer drugsdrug cravingdrug seeking behaviorexperienceexperimental studygain of functioninsightloss of functionmicroscopic imagingnovelnovel strategiesnovel therapeuticsopioid abuseopioid mortalityopioid useopioid withdrawaloptogeneticspreferenceprescription drug abuseprescription opioid abusepreventpsychological symptomrelating to nervous systemtool
项目摘要
Prescription opioid abuse is the fastest growing drug problem in the United States. Now, deaths from overdose
of opioid pain relievers exceed those from all illegal drugs. Chronic opioid use induces opioid dependence,
which is characterized by extremely unpleasant physiological and psychological symptoms after drug use is
terminated. Opioid users learn to associate opioid intake with relief from negative physical and affective states.
This maladaptive association might last long after withdrawal has terminated and underlie the drug cravings
experience by many users after exposure to drug-associated cues or stressful life events. We have recently
identified that the paraventricular nucleus of the thalamus (PVT) is a prominent neuronal substrate mediating
the physical signs and negative emotion accompanied with opioid withdrawal, which provide a unique
opportunity to directly examine the contribution of withdrawal states to opioid-associated memories. In this
application, we propose to use pathway specific optogenetic and pharmacogenetic manipulation (1) to
determining roles of the PVT output pathways in the formation and maintenance of opioid-associated
memories;; (2) to study morphine induced plasticity in each PVT pathway and impact of pathway silencing on
this plasticity;; (3) we will combine pathway specific manipulation in the PVT, c-Fos iDISCO+, and light sheet
fluorescent microscopy to mapping brain-wide network activities underlying opioid-associated memories. Our
work will inspire the development of novel strategy to treat opioid abuse.
处方阿片类药物滥用是美国增长最快的毒品问题。现在,
阿片类止痛药的使用量超过了所有非法药物。长期使用阿片类药物会导致阿片类药物依赖,
其特征是吸毒后出现极不愉快的生理和心理症状,
阿片类药物使用者学会了将阿片类药物摄入与消极的身体和情感状态的缓解联系起来。
这种适应不良的联系可能会持续很长一段时间后,停药已经终止,并根据药物的渴望
许多吸毒者在暴露于与毒品有关的线索或压力性生活事件后的经历。我们最近
发现丘脑室旁核(PVT)是一个重要的神经元基质,
阿片类药物戒断时伴随的体征和负性情绪,提供了一种独特的
有机会直接检查戒断状态对阿片样物质相关记忆的贡献。 在这
应用,我们建议使用途径特异性光遗传学和药物遗传学操作(1),
确定PVT输出途径在阿片类药物相关的形成和维持中的作用,
研究吗啡诱导的每个PVT通路的可塑性以及通路沉默对记忆的影响。
这种可塑性;(3)我们将在PVT、c-Fos iDISCO+和光片中结合联合收割机途径特异性操作
荧光显微镜来绘制阿片类药物相关记忆的全脑网络活动。
这项工作将激发开发治疗阿片类药物滥用的新策略。
项目成果
期刊论文数量(0)
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Xiaoke Chen其他文献
Xiaoke Chen的其他文献
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{{ truncateString('Xiaoke Chen', 18)}}的其他基金
Circuitry and Molecular Mechanisms for Descending Pain Facilitation
下行疼痛促进的电路和分子机制
- 批准号:
10565197 - 财政年份:2022
- 资助金额:
$ 1.23万 - 项目类别:
Thalamic Circuits for Prosocial Behaviors in Mice
小鼠亲社会行为的丘脑回路
- 批准号:
10237140 - 财政年份:2019
- 资助金额:
$ 1.23万 - 项目类别:
Thalamic Circuits for Prosocial Behaviors in Mice
小鼠亲社会行为的丘脑回路
- 批准号:
10475634 - 财政年份:2019
- 资助金额:
$ 1.23万 - 项目类别: