Neuronal ensembles of compulsive alcohol drinking
Neuronal ensembles of compulsive alcohol drinking
批准号:
10224712
负责人:
Olivier George
金额:
$35.55万
依托单位国家:
美国
项目类别:
财政年份:
2017
资助国家:
美国
项目状态:
已结题
起止时间:
2017-08-01 至 2022-07-31
关键词:
AcuteAddressAlcohol consumptionAlcohol dependenceAlcoholsAmygdaloid structureBehavior ControlBrainBrain regionCell NucleusChronicCorticotropin-Releasing HormoneDevelopmentEventFOS geneHeavy DrinkingHyperalgesiaHypothalamic structureImmediate-Early GenesInvestigationKnowledgeLacZ GenesLateralLeadLiteratureMediatingMethodsMotivationNeurobiologyNeuronsPainPathway interactionsPharmacogeneticsPharmacologyPhenotypePopulationRattusRoleSaccharinSelf AdministrationStructure of terminal stria nuclei of preoptic regionTechniquesTestingTimeTransgenic OrganismsWithdrawalalcohol exposureanxiety-like behaviordesignexperimental studyimprovednegative emotional stateneurobiological mechanismneuronal circuitrynoveloptogeneticsparabrachial nucleuspreventrecruittoolvapor
中文摘要
项目总结/摘要
酒精领域的一个关键问题是缺乏对神经元的知识,
导致酒精依赖受试者过度饮酒。 这是一个主要的障碍,
酒精领域,因为对调节过量饮酒的神经元集合的研究将
提供了一个全面的了解神经回路的因果关系,有助于酒精
依赖允许选择性靶向的药物遗传学和光遗传学工具的最新发展
特定神经元集合的研究是弥补文献中这一空白的巨大机会。 中央
这一建议假设是臂旁核(PBN)和中央核的激活
杏仁核(CeA)在戒断过程中负责募集一组离散的神经元集合
它们分散在大脑中,最终导致过度饮酒和
依赖性大鼠的负面情绪状态我们获得了强有力的初步结果表明,选择性地,
以这些神经元为靶点,可以长期逆转依赖性酒精依赖患者的过度饮酒。
大鼠,确定了这些合奏之间的因果关系,并揭示了新的神经通路,
导致酒精依赖。 具体目标1描述了CeA和PBN退出的作用
过度饮酒对神经元系综的影响 具体目标2剖析了
不同的CeA CRF途径在神经元集合的募集和过量饮酒中的作用
酒精依赖这些研究的结果有可能对人类产生强大而持久的影响。
因为我们的方法将提高我们对酒精的神经生物学机制的理解
依赖和识别新的神经元群体和电路,专门控制相关的行为
酒精依赖
英文摘要
Project Summary/Abstract
A key issue in the alcohol field is the lack of knowledge on the discreet neuronal ensembles that are
responsible for excessive alcohol drinking in alcohol-dependent subjects. This is a major obstacle for the
alcohol field because investigations of the neuronal ensembles that mediate excessive alcohol drinking would
provide a comprehensive understanding of the neuronal circuits that causally contribute to alcohol
dependence. The recent development of pharmacogenetic and optogenetic tools that allow selective targeting
of specific neuronal ensembles is a tremendous opportunity to bridge this gap in the literature. The central
hypothesis of this proposal is that activation of the parabrachial nucleus (PBN) and central nucleus of the
amygdala (CeA) during withdrawal is responsible for the recruitment of a set of discreet neuronal ensembles
that are scattered throughout the brain and ultimately responsible for excessive drinking and the emergence of
negative emotional states in dependent rats. We obtained robust preliminary results that show that selectively
targeting these neuronal ensembles produces long-lasting reversal of excessive alcohol drinking in dependent
rats, identifies a causal relationship between these ensembles, and reveals novel neuronal pathways that
contribute to alcohol dependence. Specific Aim 1 characterizes the role of the CeA and PBN withdrawal
neuronal ensembles in excessive alcohol drinking in dependent rats. Specific Aim 2 dissects the role of the
different CeA CRF pathways in the recruitment of the neuronal ensembles and excessive alcohol drinking in
alcohol dependence. Results from these studies have the potential to have a strong and lasting impact in the
field because our approach will improve our understanding of the neurobiological mechanisms of alcohol
dependence and identify novel neuronal populations and circuits that specifically control behaviors associated
with alcohol dependence.
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科研奖励(0)
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