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:10200726
- 负责人:
- 金额:$ 44.96万
- 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 AnalgesicsOutputPathway interactionsPharmaceutical PreparationsPharmacogeneticsPhysiologicalProtocols documentationRelapseRetrievalRoleStructure of paraventricular nucleus of thalamusSynapsesSynaptic plasticityTestingThalamic structureTissuesTrainingUnited StatesViralWithdrawalWithdrawal SymptomWorkbasecell typeconditioned place preferencecravingdesigner receptors exclusively activated by designer drugsdrug cravingdrug seeking behaviorexperienceexperimental studygain of functioninsightloss of functionmicroscopic imagingnovelnovel strategiesnovel therapeutic interventionnovel therapeuticsopioid abuseopioid mortalityopioid useopioid useropioid withdrawaloptogeneticsprescription 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.
处方药和阿片类药物滥用问题是全美增长最快的药物滥用问题。目前,有人死于过量用药。
阿片类药物和止痛药的比例超过了所有非法药物的比例。长期使用阿片类药物会导致对阿片类药物的依赖。
其特点是在使用药物后出现极不愉快的生理症状和心理症状。
终止。所有阿片类药物使用者可以学习如何将阿片类药物的摄入量与消极的身体和情感状态的缓解联系起来。
在戒毒计划终止后,这种适应不良的药物协会可能会持续很长一段时间,这也是人们对毒品的渴望的基础。
许多吸毒者在接触到与毒品有关的线索或紧张的生活事件后,会体验到这一点。我们最近发现。
经鉴定,丘脑下丘脑室旁核(PVT)是一种重要的神经递质。
伴随着阿片类药物戒断的是身体症状和负面情绪,这可能会为他们提供一种独特的治疗方法。
有机会直接研究戒断药物对各州与阿片类药物相关的记忆的贡献。
应用,我们将建议将该途径用于特定的光遗传学研究和药物遗传学研究(1)。
确定新的PVT在与阿片类药物相关的药物形成和维持过程中所起的作用。
Memory;;(2)致力于研究吗啡诱导的PVT各个通路的可塑性变化,以及通路沉默对记忆的影响。
这就是可塑性;;(3):我们不会在新的PVT、C-Fos和iDISCO+中将路径和具体的信息操纵技术结合在一起,以及更轻的数据表。
荧光显微镜有助于绘制全脑神经网络和潜在阿片类药物相关记忆的活动图。
这项工作还将激励我们开发一种新的治疗阿片类药物滥用的药物战略。
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:
$ 44.96万 - 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:
$ 44.96万 - 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:
$ 44.96万 - 项目类别: