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Structure effect on antioxidant activity of catecholamines toward singlet oxygen and other reactive oxygen species in vitro
http://hdl.handle.net/2297/25787
http://hdl.handle.net/2297/257873efe9239-2c90-448b-8107-73791e06ee1b
名前 / ファイル | ライセンス | アクション |
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TE-PR-MATSUGO-S-181.pdf (482.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Structure effect on antioxidant activity of catecholamines toward singlet oxygen and other reactive oxygen species in vitro | |||||
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 | |||||
著者 |
Shimizu, Takako
× Shimizu, Takako× Nakanishi, Yuji× Nakahara, Meiko× Wada, Naoki× Moro-oka, Yoshihiko× Hirano, Toru× Konishi, Tetsuya× Matsugo, Seiichi |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学理工研究域自然システム学系 | |||||
書誌情報 |
Journal of Clinical Biochemistry and Nutrition 巻 47, 号 3, p. 181-190, 発行日 2010-11-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0912-0009 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10710201 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3164/jcbn.09-112 | |||||
出版者 | ||||||
出版者 | The Society for Free Radical Research Japan = 日本酸化ストレス学会 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The reactivity of catecholamine neurotransmitters and the related metabolites were precisely investigated toward 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals and reactive oxygen species. Catecholamines reacted immediately with DPPH radicals, their reactivity being stronger than that of ascorbic acid as a reference. Superoxide scavenging activities of catecholamines determined by WST-1 and electron spin resonance (ESR) spin trapping methods were also high. Whereas tyrosine, the dopamine precursor showed no reactivity toward superoxide. The reactivity toward singlet oxygen was evaluated by observing specific photon emission from singlet oxygen. The results revealed that reactivity of catecholamines was markedly higher than that of sodium azide, and catechin as catechol reference. The reaction of catecholamines and singlet oxygen was further studied by ESR using 55-dimethyl-1-pyrroline N-oxide (DMPO) as a spin trapping reagent and rose bengal as photosensitizer. DMPO-OH signal of epinephrine was significantly small compared to other catecholamines, catechin, and 4-methylcatechol as a reference compound and was as small as that of tyrosine. The signal formation was totally dependent on singlet oxygen, and the presence of catechol compounds. These results indicated that epinephrine is the most potent singlet oxygen quencher than other catecholamines, and the secondary amino group in its alkyl side chain could play a role in unique singlet oxygen quenching property of epinephrine. | |||||
権利 | ||||||
権利情報 | Copyright (c) 2010 by The Editorial Secretariat of JCBN | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.jstage.jst.go.jp/article/jcbn/47/3/47_181/_article |