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Microdialysis with radiometric monitoring of L-[beta-11C]DOPA to assess dopaminergic metabolism: Effect of inhibitors of L-amino acid decarboxylase, monoamine oxidase, and catechol-O-methyltransferase on rat striatal dialysate.
https://repo.qst.go.jp/records/45989
https://repo.qst.go.jp/records/45989b63089d1-8ad8-4d57-a9fb-08805968dbcc
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-02-01 | |||||
タイトル | ||||||
タイトル | Microdialysis with radiometric monitoring of L-[beta-11C]DOPA to assess dopaminergic metabolism: Effect of inhibitors of L-amino acid decarboxylase, monoamine oxidase, and catechol-O-methyltransferase on rat striatal dialysate. | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Okada, Maki
× Okada, Maki× Nakao, Ryuji× Hosoi, Rie× Zhang, Ming-Rong× Fukumura, Toshimitsu× Suzuki, Kazutoshi× Inoue, Osamu× 岡田 真希× 中尾 隆士× 細井 理恵× 張 明栄× 福村 利光× 鈴木 和年× 井上 修 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The catecholamine, dopamine (DA), is synthesized from 3,4-dihydroxy-L-phenylalanine (L-DOPA) by aromatic L-amino acid decarboxylase (AADC). Dopamine metabolism is regulated by monoamine oxidase (MAO) and catechol-O-methyltransferase (COMT). To measure dopaminergic metabolism, we used microdialysis with radiometric detection to monitor L-[beta-11C]DOPA metabolites in the extracellular space of the rat striatum. We also evaluated the effects of AADC, MAO, and COMT inhibitors on metabolite profiles. The major early species measured after administration of L-[beta-11C]DOPA were [11C]3,4-dihydroxyphenylacetic acid ([11C]DOPAC) and [11C]homovanillic acid ([11C]HVA) in a 1:1 ratio, which shifted toward [11C]HVA with time. An AADC inhibitor increased the uptake of L-[beta-11C]DOPA and L-3-O-methyl-[11C]DOPA and delayed the accumulation of [11C]DOPAC and [11C]HVA. The MAO and COMT inhibitors increased the production of [11C]3-methoxytyramine and [11C]DOPAC, respectively. These results reflect the L-DOPA metabolic pathway, suggesting that this method may be useful for assessing dopaminergic metabolism. | |||||
書誌情報 |
Journal of Cerebral Blood Flow and Metabolism 巻 31, 号 1, p. 124-131, 発行日 2010-04 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0271-678X | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1038/jcbfm.2010.58; |