Characterization of N-Acetylcysteine Conjugate in Yellow Urine by Oral Administration of 1,4-Dichloro-2-Nitrobenzene in Rats
スポンサーリンク
概要
- 論文の詳細を見る
The color of urine from rats fed l,4-dichloro-2-nitrobenzene (DCNB) is a clear yellow than that of urine from control rats. In order to obtain information on the relationship between the yellow color of the urine and its constituents, analyses of the components in the urine from rats fed DCNB were performed by UV, nuclear overhauser effect (NOE) method of ^1H-NMR and liquid chromatography (LC)-MS/MS. The urine from the rats fed DCNB had absorbance at a wavelength of 383 nm. Characteristic fragment ions of the N-acetylcysteine conjugates, at m/z 187, were clearly observed in the fragmentation of the precursor ions at m/z 317 ([M-H]^-) by LC-MS/MS. And position of the structure was found to be W-acetyl-S-(4-chloro-3-nitrophenyl)-L-cysteine by NOE method. Consequently, in view of the conformity of the major constituent (N-acetylcysteine conjugates), when comparing yellow urine and the metabolite, it is thought that the metabolite formation is attributable to the longer wavelength absorbance of the N-acetyl-S-(4-chloro-3-nitrophenyl)-L-cysteine, as compared to the control urine.
- 公益社団法人日本薬学会の論文
- 2004-06-01
著者
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MATSUSHIMA Taijiro
Japan Bioassay Research Center
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Yamazaki Kazunori
Japan Bioassay Research Center, Japan Industrial Safety and Health Association
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Yamamoto Seigo
Japan Bioassay Research Center Japan Industrial Safety And Health Association
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Ohnishi Makoto
Japan Bioassay Research Center, Japan Industrial Safety and Health Association
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Yamazaki K
Japan Bioassay Research Center Japan Industrial Safety And Health Association
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Ohnishi Makoto
Japan Bioassay Res. Center Japan Industrial Safety And Health Assoc.
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Ohnishi Makoto
Japan Bioassay Research Center Japan Industrial Safety And Health Association
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Yamazaki Kazunori
Japan Bioassay Research Center Japan Industrial Safety And Health Association
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Matsushima Taijiro
Japan Bioassay Research Center Japan Industrial Safety And Health Association
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Matsushima Taijiro
Japan Industrial Safety And Health Assoc. Kanagawa Jpn
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Matsushima Taijiro
Japan Bioassay Laboratory
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Yamazaki Kazunori
Occupational Health Res. And Dev. Center Japan Industrial Safety And Health Assoc.
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Yamazaki Kazunori
Japan Bioassay Res. Center Japan Industrial Safety And Health Assoc.
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