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:10217074
- 负责人:
- 金额:$ 29.5万
- 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 RhythmDopamineEmotionalEvaluationExhibitsFibrinogenGene MutationGlutamatesHigh School StudentHumanHyperactivityLeadMedialMediatingMembraneModelingMolecularMolecular GeneticsNeuronsNucleus AccumbensOutcomePharmaceutical PreparationsPhasePrefrontal CortexPublishingRattusRegulationResearch Project GrantsRewardsRiskRodent ModelSelf AdministrationSiteSleepSleep DeprivationSleep FragmentationsSleep disturbancesSubstance abuse problemSucroseSynapsesSynaptic TransmissionTeenagersTestingTimeVentral Striatumbasebehavior testbehavioral phenotypingcellular targetingcholinergiccircadiancircadian regulationcognitive controlcortico-limbic circuitsdrug rewarddrug seeking behaviordrug testinghuman datahuman imagingimaging studyinsightmolecular phenotypemotivated behaviorpostsynapticpreferencerelating to nervous systemresponsereward processingsubstance usetraittransmission process
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
青春期是开始物质使用和滥用的脆弱时期,在此期间睡眠和昼夜节律
节奏紊乱很普遍。 人们越来越认识到睡眠和昼夜节律之间存在因果关系,并且
强有力地监管奖励处理,但其背后的机制仍然知之甚少。 可以睡觉
昼夜节律特征与奖励回路功能相关吗? 是否以及如何睡眠和昼夜节律
干扰会导致青少年更容易吸毒吗? 中心的中心假设
应用是,青少年发育作用于潜在的睡眠和昼夜节律特征,以改变体内平衡
睡眠驱动力、昼夜节律阶段和昼夜节律调整,这反过来又影响皮质边缘功能,这些功能对于睡眠至关重要
物质使用风险(例如奖励和认知控制)。 进一步假设,特定的操纵
青春期的睡眠和昼夜节律会影响奖励反应和认知控制
正方向或负方向。 该研究项目(项目 5)将重点关注啮齿动物模型,以确定
皮质边缘回路内的细胞和突触机制,通过它来睡眠和昼夜节律紊乱
改变奖励处理。 具体来说,伏隔核(NAc)是腹侧的奖励处理“中心”
纹状体对睡眠和昼夜节律干扰都很敏感。 例如,严重的睡眠剥夺会减少
内侧前额叶皮层至 NAc 中棘主神经元 (MSN) 突触释放谷氨酸;;慢性
睡眠碎片化会增加 NAc 中的胆碱能神经活动(初步结果);;强劲的昼夜节律
在 NAc 中还观察到 AMPA 受体 (AMPAR) 水平和内在膜兴奋性的波动
MSN 和 NAc 中的昼夜节律基因突变会导致 MSN 中的 AMPAR 传输发生改变。 这些一起
结果表明,NAc 可能代表睡眠和昼夜节律的汇聚位点,以调节奖励
加工。 因此,项目 5 将测试睡眠和昼夜节律目标 NAc 方面的假设
突触传递和神经调节来调节奖励驱动的行为。 因此,目标 1 将使用
遗传多样性的远交大鼠,以确定自然发生的“早期”和“晚期”时钟型是否是
与 NAc MSN 中 AMPAR 传输的不同昼夜变化相关。 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。 目标 2 将决定是否
昼夜节律紊乱,但睡眠没有变化,会改变膜兴奋性的昼夜变化和/或
NAc MSN 中的突触后 AMPAR 水平。 目标 3 将确定急性和慢性睡眠的影响
NAC 中对腺苷和胆碱能传输的限制,以及自然环境中的行为后果
或自行用药。 项目 5 的预期结果将整合并扩展行为研究的发现
(项目 4)和分子遗传学(项目 3)研究,它们将共同提供机制见解以提供信息
并进一步开展人类研究(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:
10655471 - 财政年份:2020
- 资助金额:
$ 29.5万 - 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:
10442467 - 财政年份:2020
- 资助金额:
$ 29.5万 - 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:
$ 29.5万 - 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:
$ 29.5万 - 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:
$ 29.5万 - 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:
$ 29.5万 - 项目类别:
相似海外基金
Acute senescence: a novel host defence counteracting typhoidal Salmonella
急性衰老:对抗伤寒沙门氏菌的新型宿主防御
- 批准号:
MR/X02329X/1 - 财政年份:2024
- 资助金额:
$ 29.5万 - 项目类别:
Fellowship
Transcriptional assessment of haematopoietic differentiation to risk-stratify acute lymphoblastic leukaemia
造血分化的转录评估对急性淋巴细胞白血病的风险分层
- 批准号:
MR/Y009568/1 - 财政年份:2024
- 资助金额:
$ 29.5万 - 项目类别:
Fellowship
Combining two unique AI platforms for the discovery of novel genetic therapeutic targets & preclinical validation of synthetic biomolecules to treat Acute myeloid leukaemia (AML).
结合两个独特的人工智能平台来发现新的基因治疗靶点
- 批准号:
10090332 - 财政年份:2024
- 资助金额:
$ 29.5万 - 项目类别:
Collaborative R&D
Cellular Neuroinflammation in Acute Brain Injury
急性脑损伤中的细胞神经炎症
- 批准号:
MR/X021882/1 - 财政年份:2024
- 资助金额:
$ 29.5万 - 项目类别:
Research Grant
STTR Phase I: Non-invasive focused ultrasound treatment to modulate the immune system for acute and chronic kidney rejection
STTR 第一期:非侵入性聚焦超声治疗调节免疫系统以治疗急性和慢性肾排斥
- 批准号:
2312694 - 财政年份:2024
- 资助金额:
$ 29.5万 - 项目类别:
Standard Grant
Combining Mechanistic Modelling with Machine Learning for Diagnosis of Acute Respiratory Distress Syndrome
机械建模与机器学习相结合诊断急性呼吸窘迫综合征
- 批准号:
EP/Y003527/1 - 财政年份:2024
- 资助金额:
$ 29.5万 - 项目类别:
Research Grant
FITEAML: Functional Interrogation of Transposable Elements in Acute Myeloid Leukaemia
FITEAML:急性髓系白血病转座元件的功能研究
- 批准号:
EP/Y030338/1 - 财政年份:2024
- 资助金额:
$ 29.5万 - 项目类别:
Research Grant
KAT2A PROTACs targetting the differentiation of blasts and leukemic stem cells for the treatment of Acute Myeloid Leukaemia
KAT2A PROTAC 靶向原始细胞和白血病干细胞的分化,用于治疗急性髓系白血病
- 批准号:
MR/X029557/1 - 财政年份:2024
- 资助金额:
$ 29.5万 - 项目类别:
Research Grant
ロボット支援肝切除術は真に低侵襲なのか?acute phaseに着目して
机器人辅助肝切除术真的是微创吗?
- 批准号:
24K19395 - 财政年份:2024
- 资助金额:
$ 29.5万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
Collaborative Research: Changes and Impact of Right Ventricle Viscoelasticity Under Acute Stress and Chronic Pulmonary Hypertension
合作研究:急性应激和慢性肺动脉高压下右心室粘弹性的变化和影响
- 批准号:
2244994 - 财政年份:2023
- 资助金额:
$ 29.5万 - 项目类别:
Standard Grant














{{item.name}}会员




