Neurochemistry Component - Martin-Fardon
Neurochemistry Component - Martin-Fardon
批准号:
10321936
负责人:
Remi Martin-Fardon
金额:
$20.9万
依托单位国家:
美国
项目类别:
财政年份:
1983
资助国家:
美国
项目状态:
已结题
起止时间:
1983-12-01 至 2022-12-31
关键词:
AbstinenceAcuteAlcohol consumptionAmygdaloid structureAnimalsAnteriorAnti-Anxiety AgentsAreaArousalBehavioralBrainBrain imagingBrain regionCRF receptor type 1Cell NucleusCellular NeurobiologyChronicComplementCorpus striatum structureCorticotropin-Releasing HormoneCuesDataDevelopmentDorsalDown-RegulationDrug AddictionDrug usageEnergy MetabolismEthanol dependenceEtiologyExposure toFOS geneFunctional disorderFutureGene ExpressionGoalsHippocampus (Brain)HumanHypothalamic structureImpairmentInsula of ReilInterneuronsLateralMeasuresMedialMediatingMessenger RNAMicrodialysisMicrotubule AlterationMolecularNeurobiologyNeuronsNucleus AccumbensPeptidesPharmaceutical PreparationsPhysiological ProcessesPlayPrefrontal CortexPrevalencePreventionProductionRattusRecording of previous eventsRelapseResearchRewardsRodentRoleSerotoninSignal TransductionSourceStressStructure of terminal stria nuclei of preoptic regionSystemTestingThalamic structureTimeVentral Tegmental Areaalcohol effectalcohol exposurealcohol relapsealcohol seeking behaviorantagonistbehavior testbiological adaptation to stresscravingdrug of abusefeedinghypocretinhypothalamic-pituitary-adrenal axisinsightinterestknock-downnegative affectneural circuitneurochemistrynew therapeutic targetnovelpreventreceptorrecruitrelating to nervous systemresponsesmall hairpin RNAsymptomatologytransmission processvector
中文摘要
摘要:
--
乙醇成瘾的主要治疗方法中的一个核心问题是,乙醇成瘾的复发率很高,甚至不能使用。
在经历了一段长时间的强迫戒酒或自我禁欲的间隔后,在澄清这些问题方面一直没有取得任何进展。
神经电路是一种调节精神渴求的科学,它提供了对人类神经生物学基础的更深入的见解。
复发。人类大脑的功能和成像能力,以及其他研究表明,使用c-fos基因表达作为神经功能的一个新标记物。
在对药物的反应中,啮齿动物体内的激活信号可能牵涉到相互关联的大脑皮层和边缘脑区。
启动
大脑皮质(MPFC),即基底外侧杏仁核(BLA),是杏仁核(CEA)的中央和中间核,是纹状体的底核。
终末核(BNST)、腹侧被盖区(VTA)、伏隔核(NAC)、海马区、丘脑核(THAL)。
和背侧纹状体。下丘脑下丘脑(Hcrt)分泌系统调节着一系列广泛的生理调节过程,包括。
进食、能量和新陈代谢、性唤醒、精神和精神压力、精神和精神疾病都是由药物滥用引起的。这是目前人们最感兴趣的事情。
最近的研究表明,HCRT在压力调节机制中起到了至关重要的作用。
Hcrt受体拮抗剂可能具有抗焦虑作用。此外,我们还没有收集到令人信服的数据。
这使得Etoh暴露在Hcrt基因系统中招聘人员。具体地说,我们发现Hcrt基因的mRNA表达下调的可能性很大。
在动物的下丘脑外侧核(Hcrt产生的主要来源)的研究中观察到,这是一种具有悠久历史的动物。
Etoh消除了对Hcrt-ür的依赖,并有选择地逆转了对Hcrt-ür的封锁,从而逆转了Etoh寻求回报与寻求自然回报的关系。
众所周知,慢性促肾上腺皮质激素的使用是通过释放促肾上腺皮质激素来调节压力和反应的失调。
凝血因子(CRF)在下丘脑-垂体-肾上腺皮质(HPA)轴和下丘脑外-大脑应激区都有表达。
在HPA中轴线之外(例如,ECEA和BNST)。随着药物使用的重复周期,HPA中轴线变得越来越小。
反应迟钝,并伴随着下丘脑外CRF和应激反应系统反应能力(即)的显著增加。
CRF--CRF1(受体)。重要的是,存在一种Hcrt/CRF相互作用的机制,它被认为是Hcrt的基础。
CRF对神经元的调节作用参与了慢性肾功能衰竭的复发,以及可能具有特征的负面和情绪性状态。
药物成瘾。一系列来自人类和动物研究的证据汇聚在一起,表明MFC的损害程度。
由于药物滥用和暴露而导致的功能障碍,是中国从目标导向型药物向强迫型药物转变的一个关键因素。
寻求将包含CRF和中间神经元的新mPFC,以及Hcrt和Hcrt的神经元投射到新的mPFC。这项新的提案将进行测试。
这一假说认为,在过去的历史中,Etoh对Hcrt的依赖会导致Hcrt的调节失调,并导致其与CRF在mPFC中的互动。
尤其是下丘脑区(IL),如果出现这种功能障碍,将不能预测强迫症患者寻求治疗(复发)。
在急性/早期、晚期、晚期和长期戒酒过程中因压力过大而导致的症状,这可能无法解释这种强迫症。
寻求。从未来药品和发展的总体角度来看,这个项目很可能不会突出以前的一个项目。
未被识别的机制存在于强迫症患者Etoh在禁欲期间寻求帮助的病因中;;最终导致患者死亡。
新的治疗药物靶点的确定是为了进一步预防Etoh的复发。
英文摘要
Abstract
A central problem in the treatment of ethanol (EtOH) addiction is the prevalence of relapse to EtOH use even
after protracted intervals of forced or self-imposed abstinence. Advances have been made in elucidating the
neurocircuitry that mediates craving and EtOH seeking, which provides insights into the neurobiological basis
of relapse. Functional brain imaging in humans and studies that use c-fos expression as a marker of neural
activation in rodents implicate interconnected cortical and limbic brain regions in response to drug cue-, drug
priming-, and stress-induced reinstatement. Major components of this circuitry include the medial prefrontal
cortex (mPFC), basolateral amygdala (BLA), central nucleus of the amygdala (CeA), bed nucleus of the stria
terminalis (BNST), ventral tegmental area (VTA), nucleus accumbens (NAC), hippocampus, thalamus (THAL),
and dorsal striatum. The hypocretin (Hcrt) system regulates a wide range of physiological processes, including
feeding, energy metabolism, arousal, and stress, and is recruited by drugs of abuse. Of interest for the present
proposal, recent studies have demonstrated a critical contribution of Hcrt in the modulation of stress and a
possible anxiolytic effect of Hcrt receptor (Hcrt-r) antagonists. Furthermore, we have collected convincing data
that EtOH exposure recruits the Hcrt system. Specifically, we found that downregulation of Hcrt mRNA was
observed in the lateral hypothalamus (the major source of Hcrt production) of animals that had a history of
EtOH dependence and that blockade of Hcrt-r selectively reversed EtOH seeking vs. natural reward seeking.
Chronic drug use is well known to dysregulate stress responses that are mediated by corticotropin-releasing
factor (CRF) in both the hypothalamic-pituitary-adrenal (HPA) axis and extrahypothalamic brain stress areas
outside the HPA axis (e.g., CeA and BNST). With repeated cycles of drug use, the HPA axis becomes
hyporesponsive, accompanied by an increase in the extrahypothalamic CRF stress system response (i.e.,
CRF-CRF1 receptors). Importantly, a Hcrt/CRF interaction exists, and it has been proposed that Hcrt
modulation of CRF neurons participates in the chronic relapsing, negative affective states that characterize
drug addiction. Converging lines of evidence from human and animal studies suggest that impairment of mPFC
function due to drugs of abuse exposure is a key factor in the transition from goal-directed to compulsive drug
seeking. The mPFC contains CRF interneurons, and Hcrt neurons project to the mPFC. This proposal will test
the hypothesis that a history of EtOH dependence dysregulates Hcrt and its interaction with CRF in the mPFC,
particularly the infralimbic area (IL), and if this dysfunction will predict compulsive EtOH seeking (relapse)
precipitated by stress during acute/early, late, and protracted abstinence that could explain compulsive EtOH
seeking. From the perspective of future medication development, this project is likely to highlight a previously
unrecognized mechanism in the etiology of compulsive EtOH seeking during abstinence;; ultimately leading to
the identification of novel therapeutic targets for the prevention of EtOH relapse.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Cocaine-motivated behaviors: development of novel viral-based strategies to target orexinergic input to the infralimbic cortex.
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批准号:10447503
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项目类别:
-
资助金额:$28.25万
-
财政年份:2022
-
负责人:Remi Martin-Fardon
-
依托单位:
Cocaine-motivated behaviors: development of novel viral-based strategies to target orexinergic input to the infralimbic cortex.
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批准号:10671018
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项目类别:
-
资助金额:$21.87万
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财政年份:2022
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负责人:Remi Martin-Fardon
-
依托单位:
Drug targeting the dynamics of opioid systems in alcohol dependence
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批准号:10443881
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项目类别:
-
资助金额:$51.92万
-
财政年份:2020
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负责人:Remi Martin-Fardon
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依托单位:
Drug targeting the dynamics of opioid systems in alcohol dependence
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批准号:10032660
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项目类别:
-
资助金额:$52.32万
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财政年份:2020
-
负责人:Remi Martin-Fardon
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依托单位:
Drug targeting the dynamics of opioid systems in alcohol dependence
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批准号:10662302
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项目类别:
-
资助金额:$51.92万
-
财政年份:2020
-
负责人:Remi Martin-Fardon
-
依托单位:
Drug targeting the dynamics of opioid systems in alcohol dependence
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批准号:10266772
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项目类别:
-
资助金额:$51.92万
-
财政年份:2020
-
负责人:Remi Martin-Fardon
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依托单位:
Pivotal role of thalamic hypocretin transmission during EtOH seeking and relapse
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批准号:10436851
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项目类别:
-
资助金额:$43.54万
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财政年份:2018
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负责人:Remi Martin-Fardon
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依托单位:
Pivotal role of thalamic hypocretin transmission during EtOH seeking and relapse
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批准号:10200612
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项目类别:
-
资助金额:$43.54万
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财政年份:2018
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负责人:Remi Martin-Fardon
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依托单位:
Dysregulation of thalamic hypocretin transmission following ethanol dependence
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批准号:9110011
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项目类别:
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资助金额:$22.86万
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财政年份:2016
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负责人:Remi Martin-Fardon
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依托单位:
Cognitive Function in Alcohol Dependence and Protracted Withdrawal
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批准号:9303764
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项目类别:
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资助金额:$38.7万
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财政年份:2013
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负责人:Remi Martin-Fardon
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依托单位:
Role of Orexin/Hypocretin in cocaine-seeking behavior
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批准号:8397500
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项目类别:
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资助金额:$42.64万
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财政年份:2012
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负责人:Remi Martin-Fardon
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依托单位:
Role of Orexin/Hypocretin in cocaine-seeking behavior
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批准号:8484812
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项目类别:
-
资助金额:$40.93万
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财政年份:2012
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负责人:Remi Martin-Fardon
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依托单位:
Role of Orexin/Hypocretin in cocaine-seeking behavior
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批准号:9062415
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项目类别:
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资助金额:$42.88万
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财政年份:2012
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负责人:Remi Martin-Fardon
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依托单位:
Role of Orexin/Hypocretin in cocaine-seeking behavior
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批准号:8666729
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项目类别:
-
资助金额:$42.64万
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财政年份:2012
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负责人:Remi Martin-Fardon
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依托单位:
Alcohol dependence and brain endocannabinoid function
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批准号:8884507
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项目类别:
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资助金额:$36.76万
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财政年份:2011
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负责人:Remi Martin-Fardon
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依托单位:
Neuropharmacology Component - Martin-Fardon
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批准号:10526267
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项目类别:
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资助金额:$22.21万
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财政年份:1983
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负责人:Remi Martin-Fardon
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依托单位:
海外基金