Regulation of nucleus accumbens neurons by sleep and circadian rhythm
睡眠和昼夜节律对伏隔核神经元的调节
基本信息
- 批准号:10655471
- 负责人:
- 金额:$ 30.06万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-07-15 至 2025-06-30
- 项目状态:未结题
- 来源:
- 关键词:AMPA ReceptorsAcuteAdenosineAdolescenceAdolescentAdolescent DevelopmentAffectAnhedoniaBehaviorBehavioralChronicCircadian DysregulationCircadian RhythmsCircadian desynchronyCognitiveCollaborationsCorpus striatum structureCuesDiurnal RhythmDopamineEmotionalEvaluationExhibitsGene MutationGlutamatesHigh School StudentHumanHyperactivityLeadMedialMediatingMembraneModelingMolecularMolecular GeneticsNeuronsNucleus AccumbensOutcomePharmaceutical PreparationsPhasePrefrontal CortexPublishingRattusRegulationResearch Project GrantsRewardsRiskRodent ModelSchoolsSelf AdministrationSiteSleepSleep DeprivationSleep FragmentationsSleep disturbancesSubstance abuse problemSucroseSynapsesSynaptic TransmissionTeenagersTestingTimeVentral Striatumbehavior testbehavioral phenotypingcellular targetingcholinergiccircadiancircadian regulationcognitive controldrug rewarddrug seeking behaviordrug testinghuman datahuman imagingimaging studyinsightmolecular phenotypemotivated behaviorneuralpostsynapticpreferenceresponsereward processingsubstance usetraittransmission processyoung adult
项目摘要
PROJECT SUMMARY
Adolescence is a vulnerable period for initiating substance use and abuse, during which time sleep and circadian
rhythm disruptions are pervasive. It is increasingly recognized that sleep and circadian rhythm causally, and
powerfully regulate reward processing, but the underlying mechanisms remain poorly understood. Could sleep
and circadian rhythm traits be related to reward circuit function? Whether and how do sleep and circadian
disruptions lead to increased vulnerability for substance use in adolescents? The central hypothesis of the Center
application is that adolescent development acts on underlying sleep and circadian traits to modify homeostatic
sleep drive, circadian phase, and circadian alignment, which in turn impact cortico-limbic functions critical to
substance use risk (e.g., reward and cognitive control). It is further hypothesized that specific manipulations of
sleep and circadian rhythms during adolescence will affect reward responsivity and cognitive control in either
positive or negative directions. This research project (Project 5) will focus on rodent models to determine the
cellular and synaptic mechanisms within the cortico-limbic circuit through which sleep and circadian disruptions
alter reward processing. Specifically, the nucleus accumbens (NAc) is a reward-processing “hub” in the ventral
striatum which is sensitive to both sleep and circadian disruptions. For example, acute sleep deprivation reduces
glutamate release at medial prefrontal cortex-to-NAc medium spiny principal neurons (MSNs) synapses;; chronic
sleep fragmentation increases cholinergic neural activity in the NAc (preliminary results);; robust diurnal
fluctuations in AMPA receptor (AMPAR) levels and intrinsic membrane excitability are also observed in the NAc
MSNs, and circadian gene mutation in the NAc leads to altered AMPAR transmission in MSNs. Together, these
results suggest that the NAc may represent a converging site for sleep and circadian rhythm to regulate reward
processing. Accordingly, Project 5 will test the hypothesis that sleep and circadian rhythm target aspects of NAc
synaptic transmission and neural modulation to regulate reward-motivated behaviors. Thus, Aim 1 will use
genetically diverse outbred rats to determine whether naturally occurring “early” and “late” chronotypes are
associated with different diurnal variation of AMPAR transmission in NAc MSNs. This aim will accommodate
molecular (Project 3) and behavioral (Project 4) characterizations of these rats. Aim 2 will determine whether
circadian disruptions without changes in sleep alter the diurnal variation of membrane excitability and/or
postsynaptic AMPAR levels in the NAc MSNs. Aim 3 will determine the effects of acute and chronic sleep
restrictions on adenosine and cholinergic transmission in the NAc, and the behavioral consequences in natural
or drug self-administration. The expected outcome of Project 5 will integrate and extend findings from behavioral
(Project 4) and molecular genetic (Project 3) studies, which together will provide mechanistic insights to inform
and further develop human studies (Projects 1&2).
项目摘要
青春期是启动底物使用和滥用的脆弱时期,在此期间睡眠和昼夜节律
节奏破坏无处不在。越来越多地认识到,睡眠和昼夜节律破坏是普遍的。人们越来越认识到睡眠和昼夜节律在可能的情况下,
强有力地调节处理,但潜在的机制仍然很少理解。可以睡觉
和昼夜节律性状与奖励电路功能有关?是否以及如何睡眠和昼夜节律
破坏导致青少年使用底物使用的脆弱性增加?中心的中心假设
应用是青少年发展的作用于潜在的睡眠和昼夜节律的特征来修改体内平衡
睡眠驱动器,昼夜节相和昼夜节律对准,这反过来影响Cortico-limbic对
药物使用风险(例如奖励和认知控制)。进一步假设
青少年期间的睡眠和昼夜节律会影响任何一个都会影响奖励反应性和认知控制
正或负方向。该研究项目(项目5)将侧重于啮齿动物模型,以确定
皮质膜电路内的细胞和突触机制,睡眠和昼夜节律破坏
替代奖励处理。特别是,伏隔核(NAC)是腹侧奖励的“集线器”
纹状体对睡眠和昼夜节律干扰都很敏感。例如,急性睡眠剥夺减少
内侧前额叶皮层至-NAC培养基主神经元(MSNS)突触处的谷氨酸释放;慢性的
睡眠碎裂增加了NAC中胆碱能神经活性(初步结果);强大的昼夜
在NAC中还观察到AMPA接收器(AMPAR)水平的波动(AMPAR)和固有的膜兴奋性
NAC中的MSN和昼夜节律突变会导致MSN中的AMPAR传播改变。在一起,这些
结果表明,NAC可能代表睡眠和昼夜节律的融合站点以调节奖励
加工。根据以下内容,项目5将测试NAC的睡眠和昼夜节律目标方面的假设
突触传播和中性调制以调节奖励动机行为。那,目标1将使用
通常多样化的大鼠,以确定自然发生的“早期”和“晚期”计时型是否是
与NAC MSN中AMPAR传播的不同昼夜变化有关。这个目标将适应
这些大鼠的分子(项目3)和行为(项目4)特征。 AIM 2将确定是否
没有睡眠变化而没有变化的昼夜节律会改变膜兴奋性和/或
NAC MSN中突触后AMPAR水平。 AIM 3将确定急性和慢性睡眠的影响
NAC中对腺苷和胆碱能传播的限制以及自然的行为后果
或药物自我管理。项目5的预期结果将整合和扩展行为的发现
(项目4)和分子遗传(项目3)研究,这些研究将共同提供机械见解以告知
并进一步发展人类研究(项目1和2)。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Yanhua H Huang其他文献
Yanhua H Huang的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Yanhua H Huang', 18)}}的其他基金
Regulation of nucleus accumbens neurons by sleep and circadian rhythm
睡眠和昼夜节律对伏隔核神经元的调节
- 批准号:
10442467 - 财政年份:2020
- 资助金额:
$ 30.06万 - 项目类别:
Regulation of nucleus accumbens neurons by sleep and circadian rhythm
睡眠和昼夜节律对伏隔核神经元的调节
- 批准号:
10217074 - 财政年份:2020
- 资助金额:
$ 30.06万 - 项目类别:
Mechanistic studies of alcohol-sleep interactions
酒精与睡眠相互作用的机制研究
- 批准号:
10687066 - 财政年份:2019
- 资助金额:
$ 30.06万 - 项目类别:
Mechanistic studies of alcohol-sleep interactions
酒精与睡眠相互作用的机制研究
- 批准号:
9912917 - 财政年份:2019
- 资助金额:
$ 30.06万 - 项目类别:
Mechanistic studies of alcohol-sleep interactions
酒精与睡眠相互作用的机制研究
- 批准号:
10019443 - 财政年份:2019
- 资助金额:
$ 30.06万 - 项目类别:
Mechanistic studies of alcohol-sleep interactions
酒精与睡眠相互作用的机制研究
- 批准号:
10466827 - 财政年份:2019
- 资助金额:
$ 30.06万 - 项目类别:
相似国自然基金
急性抗体介导排斥反应中NTPDase1-腺苷通路激活巨噬细胞及其损伤的机制研究
- 批准号:82270782
- 批准年份:2022
- 资助金额:52.00 万元
- 项目类别:面上项目
急性抗体介导排斥反应中NTPDase1-腺苷通路激活巨噬细胞及其损伤的机制研究
- 批准号:
- 批准年份:2022
- 资助金额:52 万元
- 项目类别:面上项目
多腺苷二磷酸多聚酶抑制剂靶向消除异柠檬酸脱氢酶突变型骨髓增生异常综合征及急性髓系白血病干细胞的有效性研究
- 批准号:82170137
- 批准年份:2021
- 资助金额:55 万元
- 项目类别:面上项目
PFKFB3驱动的糖酵解在重症急性胰腺炎中的调控作用及分子机制研究
- 批准号:81900583
- 批准年份:2019
- 资助金额:20.0 万元
- 项目类别:青年科学基金项目
ALKBH5通过m6A介导的表观调控在急性髓细胞白血病中的机制研究
- 批准号:81900154
- 批准年份:2019
- 资助金额:22.0 万元
- 项目类别:青年科学基金项目
相似海外基金
Regulation of nucleus accumbens neurons by sleep and circadian rhythm
睡眠和昼夜节律对伏隔核神经元的调节
- 批准号:
10442467 - 财政年份:2020
- 资助金额:
$ 30.06万 - 项目类别:
Regulation of nucleus accumbens neurons by sleep and circadian rhythm
睡眠和昼夜节律对伏隔核神经元的调节
- 批准号:
10217074 - 财政年份:2020
- 资助金额:
$ 30.06万 - 项目类别: