L-6-[18F]Fluoro-DOPA Metabolism in Monkeys and Humans: Biochemical Parameters for the Formulation of Tracer Kinetic Models with Positron Emission Tomography

L-6-[18F]Fluoro-DOPA Metabolism in Monkeys and Humans: Biochemical Parameters for the Formulation of Tracer Kinetic Models with Positron Emission Tomography
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猴子和人类的 L-6-[18F]氟多巴代谢:用于正电子发射断层扫描示踪动力学模型制定的生化参数

DOI:
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发表时间:
1991
影响因子:
6.3
通讯作者:
J. Barrio
J. Barrio
中科院分区:
医学1区
文献类型:
--
作者:
W. Melega;Scott T. Grafton;S. C. Huang;N. Satyamurthy;M. Phelps;J. Barrio

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L-3,4-二羟基-6-[18F]氟苯丙氨酸(FDOPA)在人和猴的外周和脑内代谢的研究表明,FDOPA是L-DOPA的类似物,用于正电子发射断层扫描(PET)研究多巴胺能系统。在接受卡比多巴预处理的人体研究中,l-3,4-dihydroxy-6-[18F]fluoro-3-O-methylphenylalanine(3-OMFD)是血浆中唯一检测到的FDOPA代谢物。在猕猴体内,FDOPA代谢产物选择性地聚集在中央多巴胺能区,而外周来源的3-OMFD均匀分布于壳核、尾状核、额叶皮质和小脑。在60min时,3-OMFD和6-[18F]氟多胺分别占∼总活性的35%,其余为FDOPA和FDA的代谢物。这些关于猴子和人类FDOPA代谢的数据为用PET建立FDOPA示踪动力学模型提供了基础。
Characterization of peripheral and cerebral l-3,4-dihydroxy-6-[18F]fluorophenylalanine (FDOPA) metabolism in humans and monkeys has shown FDOPA to be an analogue of l-DOPA for the study of the dopaminergic system with positron emission tomography (PET). In human studies with carbidopa pretreatment, l-3,4-dihydroxy-6-[18F]fluoro-3-O-methylphenylalanine (3-OMFD) was the only FDOPA metabolite detected in plasma. FDOPA administration in monkeys resulted in selective accumulation of FDOPA metabolites in central dopaminergic regions, whereas 3-OMFD of peripheral origin was uniformly distributed among putamen, caudate, frontal cortex, and cerebellum. At 60 min, 3-OMFD and 6-[18F]fluorodopamine (FDA) each represented ∼35% of the total activity, the remainder being FDOPA and FDA metabolites. These data on monkey and human FDOPA metabolism provide the basis for the configuration of an FDOPA tracer kinetic model with PET.
使用 PET 远程、半自动生产 6-[18F]氟-L-多巴用于人体研究。
DOI: 10.1016/0883-2889(90)90191-i
发表时间: 1990
期刊: International journal of radiation applications and instrumentation. Part A, Applied radiation and isotopes
影响因子: --
作者:
Luxen,A;Perlmutter,M;Bida,GT;VanMoffaert,G;Cook,JS;Satyamurthy,N;Phelps,ME;Barrio,JR
通讯作者: Barrio,JR
中皮质多巴胺神经元:与其他大脑儿茶酚胺系统相比,递质转换更快。
DOI: --
发表时间: 1981
期刊: Brain research
影响因子: 2.9
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人体神经递质生物化学的体内评估。
DOI: 10.1146/annurev.pa.28.040188.001241
发表时间: 1988
影响因子: 12.5
作者:
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