The Role of Signal Transduction Pathways in Hypertension

信号转导途径在高血压中的作用

• 批准号: 7149459
• 负责人: Exazevia M Logan
• 金额: $ 4.19万
• 依托单位: WAKE FOREST UNIVERSITY HEALTH SCIENCES
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-08-15 至 2008-08-14
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7149459
• 关键词: angiotensin II; angiotensin receptor; baroreceptors; baroreflex; biological signal transduction; brain metabolism; disease /disorder model; enzyme activity; genetically modified animals; hypertension; laboratory rat; microinjections; mitogen activated protein kinase; neurochemistry; pathologic process; phosphatidylinositol 3 kinase; predoctoral investigator; renin angiotensin system; solitary tract nucleus; sympathetic nervous system

DESCRIPTION (provided by applicant): The goal of the planned research is to either confirm or refute the presence of separate phosphatidylinositol 3 (PI3) and mitogen-activated protein (MAP) kinase pathways in the nucleus tract solitarius (NTS) in various models of hypertension. The overall objective is to investigate the signaling mechanisms at this brain site potentially contributing to development and maintenance of sustained hypertension. Our ongoing studies are designed to provide initial information about the relationship between the apparent enhancement of the sympathetic nervous system in various forms of hypertension and the role of PI3 and MAP kinase signaling pathways in the maintenance of hypertension. Our initial goal is to demonstrate that PI3 and MAP kinase signaling pathways in the NTS of (mRen-2)27 transgenic rats are activated in response to Ang II binding to AT1 receptors. The rationale for the proposed research is that, once knowledge of the mechanisms that are responsible for the development of hypertension has been obtained, it may lead to new strategies that can be used to prevent and/or treat hypertension, thereby reducing the morbidity and mortality associated with high blood pressure.

描述（由申请人提供）：计划研究的目标是证实或反驳各种孤核束模型中单独的磷脂酰肌醇 3 (PI3) 和丝裂原激活蛋白 (MAP) 激酶通路的存在。高血压。总体目标是研究该大脑部位的信号传导机制，可能有助于持续高血压的发展和维持。我们正在进行的研究旨在提供有关各种形式的高血压中交感神经系统的明显增强与 PI3 和 MAP 激酶信号通路在维持高血压中的作用之间关系的初步信息。我们最初的目标是证明 (mRen-2)27 转基因大鼠 NTS 中的 PI3 和 MAP 激酶信号通路在 Ang II 与 AT1 受体结合时被激活。拟议研究的基本原理是，一旦获得了导致高血压发生的机制的知识，可能会产生可用于预防和/或治疗高血压的新策略，从而降低发病率和死亡率与高血压有关。