NMR STUDIES OF GLUCOSE METABOLISM IN CATS

猫葡萄糖代谢的核磁共振研究

• 批准号: 7358233
• 负责人: JOHN GLUSHKA
• 金额: $ 0.14万
• 依托单位: UNIVERSITY OF GEORGIA
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-02-01 至 2007-01-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7358233
• 关键词: NMR; STUDIES; GLUCOSE; METABOLISM; CATS

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. Glucose metabolism in cats under a variety of dietary conditions is being analyzed as part of a study of obesity. By following isotope labels (carbon-13 and deuterium) and measuring amounts of label at specific atom sites in glucose, one can evaluate different metabolic pathways. The analysis involves preparing and extracting a glucose derivative (1,2-isopropylidene-glucofuranose or 'monoacetone glucose') from plasma, collecting carbon-13 and deuterium NMR spectra of this compound, and measuring relative peak intensities. The data are then analyzed according to published algorithms to identify the source of each atom. The collaborative work includes modifying sample preparation and NMR data acquisition protocols in order to increase overall signal sensitivity, due to the lower amounts of plasma and isotope enrichment available in the cat samples relative to published work on rats and humans. In addition to the medically relevant data, this project will be a test application of analytical NMR, and provide useful benchmark data for NMR hardware such as the capillary flow probe.

该子项目是利用NIH/NCRR资助的中心赠款提供的资源的许多研究子项目之一。子项目和研究者（PI）可能从另一个NIH来源获得主要资金，因此可以在其他CRISP条目中表示。所列机构为中心，不一定是研究者所在机构。作为肥胖研究的一部分，正在分析猫在各种饮食条件下的葡萄糖代谢。通过跟踪同位素标记（碳-13和氘）并测量葡萄糖中特定原子位点的标记量，可以评估不同的代谢途径。该分析涉及从血浆中制备和提取葡萄糖衍生物（1，2-异亚丙基-呋喃葡萄糖或“单丙酮葡萄糖”），收集该化合物的碳-13和氘NMR光谱，并测量相对峰强度。然后根据已发布的算法分析数据，以确定每个原子的来源。 合作工作包括修改样品制备和NMR数据采集方案，以提高整体信号灵敏度，因为相对于已发表的大鼠和人类工作，猫样品中的血浆和同位素富集量较低。除了医学相关的数据，该项目将是分析NMR的测试应用，并为NMR硬件（如毛细管流动探针）提供有用的基准数据。