EFFECT OF ADVERSE PERINATAL EXPERIENCES ON CORTICAL ORGANIZATION

围产期不良经历对皮质组织的影响

• 批准号: 7959427
• 负责人: BARBARA CLANCY
• 金额: $ 9.68万
• 依托单位: UNIV OF ARKANSAS FOR MED SCIS
• 依托单位国家: 美国
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-05-01 至 2010-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7959427
• 关键词: Adverse effects; Adverse event; Affect; Age; Anesthesia procedures; Anesthetics; Animals; Aptitude; Architecture; Arkansas; Behavioral; Biomedical Research; Brain; Brain region; Cells; Child; Cognitive; Computer Retrieval of Information on Scientific Projects Database; Control Animal; Data; Defect; Development; Disadvantaged; Funding; Goals; Grant; Institution; Intelligence; Label; Lead; Light; Mammals; Microscopy; Neonatal; Neurons; Newborn Infant; Pain; Perinatal; Premature Birth; Premature Infant; Rattus; Research; Research Personnel; Resources; Rodent; Role; Source; Structure; Students; Techniques; Time; United States National Institutes of Health; age group; career; developmental disease; experience; relating to nervous system

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The adverse experiences related to preterm birth are associated with cognitive and behavioral defects in ex-preterm children, indicating disruption of the cortex, the primary brain region involved in aptitude and intelligence. Nevertheless, it has not been established that premature infants experience pain or neural consequences from pain, nor is it known if the benefits of anesthetic drugs outweigh disadvantages in this age group. The overall goals of this project are to understand how pain and/or anesthesia in newborns affects the manner in which brain architecture develops, matures, and ages, with a focus on the cortex, and the role of group of a cells critically involved in normal cortical development, the subplate neurons. We hypothesize that when perinatal mammals are exposed to repetitive pain or prolonged anesthesia, cortical organization is irreparably altered, a disruption that can be minimized if anesthesia is administered for an appropriate time period. Because rats exposed to repetitive neonatal pain and/or anesthesia develop deficits mimicking those of ex-preterm children, we propose to characterize the cortex of rodents that have undergone adverse perinatal experiences with and without anesthetic drugs. Utilizing cellular labeling techniques, and correlated light and fluorescent microscopy, we will compare the structure of the cortex, including subplate neurons, between treated and control animals across development. Using bioinfomatic techniques, we will generate predictions for appropriate anesthetic intervals in experimental animals. Using these data, we will begin to understand how cortical disruption may be implicated in developmental disorders associated with ex-preterm children. It is expected that this research will demonstrate to students the potential of careers in biomedical research, as well as support federal funding for undergraduate research experiences, and ultimately lead to the development of proposals for federal funds to continue to investigate in detail how disruption of the cortex may be evidenced in developmental disorders.

这个子项目是许多研究子项目中的一个 由NIH/NCRR资助的中心赠款提供的资源。子项目和 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可以在其他CRISP条目中表示。所列机构为 研究中心，而研究中心不一定是研究者所在的机构。 与早产相关的不良经历与前早产儿童的认知和行为缺陷有关，表明大脑皮层（与能力倾向和智力有关的主要大脑区域）受到破坏。然而，尚未确定早产儿会经历疼痛或疼痛引起的神经后果，也不知道麻醉药物在该年龄组中的益处是否大于缺点。这个项目的总体目标是了解新生儿的疼痛和/或麻醉如何影响大脑结构的发育，成熟和年龄的方式，重点是皮层，以及在正常皮层发育中至关重要的a细胞群，基板神经元的作用。我们假设，当围产期哺乳动物暴露于重复性疼痛或长时间的麻醉，皮质组织是不可挽回的改变，中断，可以尽量减少，如果麻醉管理适当的时间段。由于大鼠暴露于重复的新生儿疼痛和/或麻醉发展赤字模仿那些前早产儿，我们建议表征啮齿动物的皮质经历了不良围产期的经验，有和没有麻醉药物。 利用细胞标记技术，以及相关的光学和荧光显微镜，我们将比较整个发育过程中治疗组和对照组动物的皮质结构，包括基板神经元。使用生物信息学技术，我们将预测实验动物的适当麻醉间隔。利用这些数据，我们将开始了解皮质破坏如何与早产儿相关的发育障碍有关。预计这项研究将向学生展示生物医学研究职业的潜力，并支持联邦资助本科生的研究经验，并最终导致联邦基金的发展建议，以继续详细调查大脑皮层的破坏如何在发育障碍中得到证明。