The role of the androgen receptor in behavior

雄激素受体在行为中的作用

• 批准号: 7230772
• 负责人: Damian Gabriel Zuloaga
• 金额: $ 3.25万
• 依托单位: MICHIGAN STATE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7230772
• 关键词: androgen receptor; animal developmental psychology; anxiety; anxiety disorders; behavior test; behavioral /social science research tag; developmental genetics; developmental neurobiology; gender difference; gene mutation; hormone regulation /control mechanism; hormone sensitivity /resistance; laboratory mouse; laboratory rat; male castration; neural information processing; open field behavior; ovariectomy; predoctoral investigator; psychopharmacology; sensory feedback; sex development disorder; startle reaction; testicular feminization; testosterone

DESCRIPTION (provided by applicant): Hormone receptors in the brain, particularly the estrogen receptor, have been shown to play a major role in the development and maintenance of sex differences in behavior. However, the role of the androgen receptor in this process is less understood. Therefore I propose to investigate the role of the androgen receptor in two types of behavior, sensorimotor gating and anxiety, using male mice and rats with the testicular feminization mutation (TFM), a mutation in the androgen receptor gene that renders the protein nonfunctional. Experiment 1 will test the hypothesis that the androgen receptor is involved in the regulation of sensorimotor gating and anxiety-related behaviors in adulthood by comparing behavior between TFM males, wild type males and wild type females. Since TFM male mice and rats have different circulating testosterone (T) levels than their wild type siblings, in Experiment 2 all animals will be gonadectomized, administered T, and tested for the same behaviors to reveal whether circulating T is acting on AR in adulthood to affect behavior. Experiment 3 will test whether differences in sensorimotor gating and anxiety in adulthood are the result of androgen induced organization during development.

描述（由申请人提供）：大脑中的激素受体，尤其是雌激素受体，已被证明在行为性别差异的发展和维持中起主要作用。但是，雄激素受体在此过程中的作用尚不清楚。因此，我建议使用具有睾丸女性化突变（TFM）的雄性小鼠和大鼠，研究雄激素受体在两种类型的行为，感觉运动门控和焦虑中的作用，雄激素受体基因中的突变，导致蛋白质非功能。实验1将通过比较TFM雄性，野生型男性和野生型女性的行为来检验雄激素受体参与成年中感觉运动门控和与焦虑相关的行为的假设。由于TFM雄性小鼠和大鼠的循环睾丸激素水平（T）水平与野生型兄弟姐妹不同，因此在实验2中，所有动物都将被赋形，施用T，并测试了相同的行为以揭示循环T是否在成年后对AR作用以影响行为。实验3将测试感觉运动门控和成年时焦虑的差异是雄激素引起的在发育过程中组织的结果。