Paraventricular thalamic nucleus: Role of orexin and opioids in ethanol intake
Paraventricular thalamic nucleus: Role of orexin and opioids in ethanol intake
批准号:
9049646
负责人:
Jessica Rose Barson
金额:
$24.9万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2012
资助国家:
美国
项目状态:
已结题
起止时间:
2012-12-01 至 2018-04-30
关键词:
Advisory CommitteesAffectAgonistAlcohol consumptionAlcoholismAnimalsAnteriorAnxietyApplications GrantsAreaArousalAttentionBehaviorBehavior assessmentBehavioralBrainBrain regionCREB1 geneCell NucleusCellsChronicCollaborationsConsultDiseaseEducational workshopEmotionalEmotionsEnkephalinsEthanolEventExhibitsFacultyFundingGenetic TranscriptionGoalsGrantHeavy DrinkingHomeostasisHypothalamic structureImpairmentIn Situ HybridizationIndividualInjection of therapeutic agentInvestigationLaboratoriesLateralLearningLettersLiteratureMeasuresMediatingMentorshipMessenger RNAMethodsModelingMolecularNeurobiologyNeuronsNeuropeptidesOccupationalOpioidOutputPathway interactionsPeptidesPositioning AttributePostdoctoral FellowProcessPublicationsPublishingRattusReceptor ActivationResearchResourcesRoleScientistSignal TransductionSocietiesStructureStructure of paraventricular nucleus of thalamusTechniquesTestingThalamic structureTimeTrainingUniversitiesWorkaddictionalcohol researchalcohol use disorderalcoholism preventionanalogcareer developmentdesigndrinkingdrinking behavioremotional behaviorgraduate studenthypocretinimprovedincentive salienceinnovationknowledge basemedical schoolsmeetingsmelanin-concentrating hormonemelanin-concentrating hormone receptorneurochemistrynovelorexin 1 receptororexin Borexin B receptorpromoterreceptorresearch and developmentresearch studyskillssocial
中文摘要
项目总结:**
--
酒精中毒,也被称为酒精使用障碍,是一种以过度饮酒为特征的慢性精神衰弱障碍。
饮酒和精神障碍是社交能力和职业功能障碍的主要原因,而大多数调查都是对大脑的影响。
根据最近的研究证据,人们已经在下丘脑下部或中脑边缘区域研究了调节这种精神障碍的机制。
将注意力集中在一个相对研究较少的区域,即下丘脑室旁核(PVT)。
在调节下丘脑的动态平衡和调节情绪之间提供了一个非常重要的中继点。
边缘核。在利用这种间歇性乙醇获取模式的同时,它导致人们自愿减少乙醇的消费。
在药理上相关的血糖水平上,我可能计划进一步测试这一总体假说,即酒精和饮酒会刺激健康。
下丘脑促食欲素受体(OX)在新的PVT中起作用,主要是作用于促食欲素受体2,而不是促食欲素受体1。
(而不是在其受体上发现黑色素浓缩激素),而不是在大脑前部而不是后部。
次区域、地区和地区采取了这一行动,反过来也增加了当地使用非阿片类药物脑啡肽(ENK)的水平,以进一步促进这一行动。
乙醇摄入量。考虑到这一系列事件,在促进无序饮酒方面,这一系列事件可能是至关重要的。
我建议,在目标1中,进一步调查在饮酒后可能发生的主要神经化学事件,而不是来自Oox的事件。
在下丘脑的转录中,ENK在前PVT中的释放。在Aim中,我将不会检查所有的行为测试结果。
在这些神经化学物质的变化中,我们测试了奥昔洛韦和ENK注射剂对酒精和饮酒的影响。
情绪化的行为产生和消除了这样一种可能性,即这些行为是自然增加的,是由更高的内源性行为引起的。
多肽水平。在目标3中,我将接着研究这种氧化对ENK的连接的分子调控机制,并对其进行研究。
有可能认为,这一技术对于促进酒精和饮酒的发展是必要的。作为集体,我们可以根据不同的情况使用不同的技术
神经细胞原代培养、原位杂交、行为能力评估和测试,这些研究应该提供更多的信息。
关于一个研究相对较少的核,即PVT,提供了重要的新信息,并证明了其潜在的重大核参与。
在乙醇摄入量方面。除了其他出版物外,我还认为应该从这项新工作中脱颖而出,这将不会让我有更多机会。
整合分子、细胞、神经和行为研究结果,这项新拨款提案的主要资金来源将给我带来更多信息。
作为一名科学家,需要在研究和职业发展方面接受必要的培训,才能获得独立。我将继续努力。
此外,还将参加高级课程课程,并参加洛克菲勒大学的研讨会和高级研讨会。
大学通过中国三所大学合作教育网络进行交流和研究,同时参与国家教育社会。
会议。我将不会收到我的第一个赞助商Sarah和Leibowitz博士的专家指导意见,以及我的建议。
该委员会与洛克菲勒州立大学丰富的教育资源一起,将使我能够更好地学习。
新的实验方法和方法在我的研究和问题上获得了新的视角。因此,我参与了研究的过程。
进行创新和新的研究,我相信我将获得必要的技能,以成功地过渡到一个新的职位。
一位独立的酒类研究科学家和研究人员将为中国酒类研究的全球领域做出重大贡献。
英文摘要
PROJECT SUMMARY
Alcoholism, also known as alcohol use disorder, is a chronic debilitating disorder characterized by excessive
ingestion of alcohol and impairment in social and occupational functioning. While most investigations of brain
mechanisms mediating this disorder have studied the hypothalamus or mesolimbic regions, recent evidence
focuses attention on a relatively understudied area, the paraventricular nucleus of the thalamus (PVT), which
provides an important relay point between the homeostasisregulating hypothalamus and emotionregulating
limbic nuclei. Utilizing the intermittent access model that leads to voluntary consumption of ethanol at
pharmacologicallyrelevant levels, I plan to test the overall hypothesis that ethanol drinking stimulates the
hypothalamic neuropeptide orexin (OX) to act in the PVT, primarily at the orexin 2 rather than orexin 1 receptor
(and rather than melaninconcentrating hormone at its receptor) and specifically in the anterior rather than posterior
subregion, and that this action, in turn, increases local levels of the opioid enkephalin (ENK) to promote further
ethanol intake. With this sequence of events possibly being critically important in promoting disordered alcohol use,
I propose, in Aim 1, to investigate the neurochemical events that occur following ethanol drinking, from OX
transcription in the hypothalamus to ENK release in the anterior PVT. In Aim 2, I will examine the behavioral results
of these neurochemical changes, testing the effects of OX and ENK injection in the PVT on ethanol drinking and
emotional behaviors and the possibility that these behaviors are naturally increased by elevated endogenous
peptide levels. In Aim 3, I will then look at molecular mechanisms of this OXtoENK connection and examine the
possibility that this is necessary for promoting ethanol drinking. Collectively, by using techniques as varied as
primary neuronal culture, in situ hybridization, and behavioral assessment tests, these studies should provide
significant new information on a relatively understudied nucleus, the PVT, and its potentially major involvement
in ethanol intake. In addition to the publications that should come out of this work, which will allow me to
integrate molecular, cellular, and behavioral findings, the funding of this grant proposal will give me the
necessary training in both research and career development to attain independence as a scientist. I will
additionally take part in advanced coursework and attend seminars and workshops at The Rockefeller
University and through the TriInstitutional Collaboration Network, while participating in national society
meetings. I will receive expert mentorship from my sponsor, Dr. Sarah Leibowitz, as well as my advisory
committee which, together with the abundant resources at The Rockefeller University, will allow me to learn
new experimental methods and gain new perspectives on my research questions. Thus, in the process of
conducting innovative new research, I will gain the skills necessary to successfully transition into a position as
an independent research scientist and to make a significant contribution to the field of alcohol research.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
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批准号:8585016
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Paraventricular thalamic nucleus: Role of orexin and opioids in ethanol intake
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负责人:Jessica Rose Barson
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依托单位:
Paraventricular thalamic nucleus: Role of orexin and opioids in ethanol intake
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批准号:9259889
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项目类别:
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资助金额:$24.9万
-
财政年份:2012
-
负责人:Jessica Rose Barson
-
依托单位:
海外基金