Abstract:
:N-omega-[18F]fluoroethylketanserin ([18F]FEK), an 18F-labeled analogue of the serotonin S2 antagonist ketanserin, was evaluated for use with positron emission tomography (PET). PET imaging of a baboon brain following injection of [18F]FEK indicated that the fluorinated ligand rapidly localized in vivo within S2 receptor-rich tissues (frontal cortex/cerebellum radioactivity ratio = 2.5 after 15 min), and selective localization was retained for as long as 3 h post injection. Pretreatment with unlabeled ketanserin (15 mg/kg, i.v.) 1 h prior to [18F]FEK completely abolished selective localization of the radiotracer, whereas regional cerebral blood flow, cerebral blood volume, and the free fraction of [18F]FEK in arterial blood were unaltered. [18F]FEK has several advantages compared to previously used PET radiopharmaceuticals, and may be an excellent radioligand for non-invasive evaluation of S2 binding in vivo.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Moerlein SM,Perlmutter JSdoi
10.1016/0304-3940(91)90149-nsubject
Has Abstractpub_date
1991-02-11 00:00:00pages
23-6issue
1eissn
0304-3940issn
1872-7972pii
0304-3940(91)90149-Njournal_volume
123pub_type
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journal_title:Neuroscience letters
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journal_title:Neuroscience letters
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
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更新日期:2016-04-08 00:00:00
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journal_title:Neuroscience letters
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2008.04.051
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
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更新日期:2018-11-20 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2006-06-12 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2012.11.042
更新日期:2013-02-08 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(86)90455-6
更新日期:1986-09-25 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2005.09.086
更新日期:2006-05-15 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(89)90270-x
更新日期:1989-04-24 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2007.04.064
更新日期:2007-06-08 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(99)00820-4
更新日期:1999-12-10 00:00:00