Basolateral amygdala circuits in defensive behavior regulation

基底外侧杏仁核回路在防御行为调节中的作用

• 批准号: 10311537
• 负责人: John A Wemmie
• 金额: $ 34.07万
• 依托单位: UNIVERSITY OF IOWA
• 依托单位国家: 美国
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-02-12 至 2022-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10311537
• 关键词: ASIC channel; Amygdaloid structure; Asphyxia; Behavior; Behavioral; Brain; Carbon Dioxide; Data; Electrophysiology (science); Environment; Equilibrium; Foundations; Freezing; Genetic; Glutamates; Goals; Human; Impairment; Inhalation; Inhibitory Synapse; Interneurons; Knowledge; Lesion; Mediating; Mental Depression; Mental disorders; Mus; National Institute of Mental Health; Negative Valence; Neurobiology; Neurons; Output; Panic; Panic Disorder; Parvalbumins; Play; Population; Positioning Attribute; Post-Traumatic Stress Disorders; Process; Psychotic Disorders; Regulation; Reproducibility; Research Domain Criteria; Role; Signal Transduction; Site; Somatostatin; Symptoms; System; Testing; Translational Research; Translations; Work; base; behavioral response; conditioned fear; experimental study; fighting; improved; innovation; optogenetics; receptor; relating to nervous system; response

Abstract Survival in a hostile environment requires the ability to assess potential threats and take the most appropriate defensive action. Accumulating evidence suggests that the amygdala is well positioned to integrate information about threats and to guide or shift responses along a spectrum of potential defensive behaviors. In both humans and mice, the amygdala plays an essential role in defensive responses to the threat of suffocation, signaled by rising systemic carbon dioxide (CO2) levels in the body. Lesioning the amygdala, or manipulating it more precisely in other ways, reduces some defensive behaviors evoked by CO2 inhalation (e.g. freezing) while simultaneously increasing others (e.g. fight-or-flight). Because CO2 inhalation evokes a variety of defensive responses in a robust, reproducible, and concentration-dependent manner, CO2 provides a straightforward and translatable approach to studying the amygdala's role in defensive behavior regulation. In this application, we propose to study defensive behaviors evoked by CO2 using state-of-the-art, neuron- specific manipulations and electrophysiological recording to deconstruct roles of select neuron populations in the basolateral amygdala (BLA). We hypothesize that distinct defensive behaviors are differentially regulated by the BLA and that principal neurons and interneurons in the BLA each play unique roles. To test this hypothesis we will use genetic, optogenetic, and electrophysiological approaches to specifically activate and silence specific BLA neuron populations and quantify the effects on neural activity and defensive behaviors. Together these experiments will allow us to discern how these neurons regulate different defensive behaviors. Understanding basic mechanisms that guide or shift defensive behaviors along their spectrum will be essential for identifying abnormalities in these processes and for finding ways to correct them. This knowledge will ultimately impact mental illnesses where defensive behaviors are inappropriately extreme such as panic disorder and post-traumatic stress disorder.

抽象的 在敌对环境中生存需要能够评估潜在威胁并采取最适当的措施 防御行动。越来越多的证据表明杏仁核能够很好地整合信息 威胁并指导或改变一系列潜在防御行为的反应。在两者中 在人类和小鼠中，杏仁核在对窒息威胁的防御反应中发挥着重要作用， 由体内全身二氧化碳 (CO2) 水平升高发出信号。损害或操纵杏仁核 更准确地说，在其他方面，减少吸入二氧化碳引起的一些防御行为（例如冻结） 同时增加其他因素（例如战斗或逃跑）。因为吸入二氧化碳会引起多种 CO2 以稳健、可重复且浓度依赖性的方式产生防御反应， 研究杏仁核在防御行为调节中的作用的直接且可转化的方法。在 在这个应用中，我们建议使用最先进的神经元来研究二氧化碳引起的防御行为 特定的操作和电生理记录来解构选定神经元群的作用 基底外侧杏仁核（BLA）。我们假设不同的防御行为受到不同的调节 BLA 中的主要神经元和中间神经元各自发挥着独特的作用。为了测试这个 假设我们将使用遗传、光遗传学和电生理学方法来特异性激活和 沉默特定的 BLA 神经元群体并量化对神经活动和防御行为的影响。 这些实验将使我们能够了解这些神经元如何调节不同的防御行为。 了解引导或改变防御行为的基本机制至关重要 识别这些过程中的异常情况并找到纠正方法。这些知识将 最终影响精神疾病，其中防御行为过度极端，例如恐慌 障碍和创伤后应激障碍。

项目成果

R1ρ sensitivity to pH and other compounds at clinically accessible spin-lock fields in the presence of proteins.

在存在蛋白质的情况下，R1α 对临床可访问的自旋锁场中的 pH 和其他化合物敏感。

• 发表时间: 2020
• 影响因子: 2.9
• 作者: Owusu, Nana;Johnson, Casey P;Kearney, William;Thedens, Dan;Wemmie, John;Magnotta, Vincent A
• 通讯作者: Magnotta, Vincent A

Overexpression of ASIC1A in the nucleus accumbens of rats potentiates cocaine-seeking behavior.

大鼠伏核中 ASIC1A 的过度表达会增强可卡因寻求行为。

• 发表时间: 2020-03
• 影响因子: 3.4
• 作者: Gutman, Andrea L;Cosme, Caitlin V;Noterman, Maria F;Worth, Wensday R;Wemmie, John A;LaLumiere, Ryan T
• 通讯作者: LaLumiere, Ryan T

Loss of tau and Fyn reduces compensatory effects of MAP2 for tau and reveals a Fyn-independent effect of tau on calcium.

tau 和 Fyn 的缺失降低了 MAP2 对 tau 的补偿作用，并揭示了 tau 对钙的独立于 Fyn 的作用。

• 发表时间: 2019
• 影响因子: 4.2
• 作者: Liu, Guanghao;Thangavel, Ramasamy;Rysted, Jacob;Kim, Yohan;Francis, Meghan B;Adams, Eric;Lin, Zhihong;Taugher, Rebecca J;Wemmie, John A;Usachev, Yuriy M;Lee, Gloria
• 通讯作者: Lee, Gloria

Comparison of T1Rho MRI, Glucose Metabolism, and Amyloid Burden Across the Cognitive Spectrum: A Pilot Study.

认知谱中 T1Rho MRI、葡萄糖代谢和淀粉样蛋白负担的比较：一项试点研究。

• 发表时间: 2020
• 作者: Boles Ponto, Laura L;Magnotta, Vincent A;Menda, Yusuf;Moser, David J;Oleson, Jacob J;Harlynn, Emily L;DeVries, Sean D;Wemmie, John A;Schultz, Susan K
• 通讯作者: Schultz, Susan K

Stimulation of Posterior Thalamic Nuclei Induces Photophobic Behavior in Mice.

刺激丘脑后核可诱导小鼠的畏光行为。

• 发表时间: 2020-10
• 影响因子: 5
• 作者: Sowers, Levi P;Wang, Mengya;Rea, Brandon J;Taugher, Rebecca J;Kuburas, Adisa;Kim, Youngcho;Wemmie, John A;Walker, Christopher S;Hay, Debbie L;Russo, Andrew F
• 通讯作者: Russo, Andrew F