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  • 标题:The Behavior of Dihydropyrazine with DNA Strand-Breakage Activity in Vivo
  • 本地全文:下载
  • 作者:Tadatoshi Yamaguchi ; Hajime Nomura ; Kazuhisa Matsunaga
  • 期刊名称:Biological and Pharmaceutical Bulletin
  • 印刷版ISSN:0918-6158
  • 电子版ISSN:1347-5215
  • 出版年度:2003
  • 卷号:26
  • 期号:11
  • 页码:1523-1527
  • DOI:10.1248/bpb.26.1523
  • 出版社:The Pharmaceutical Society of Japan
  • 摘要:The effects on the viability of cell lines treated with 2,3-dihydro-5,6-dimethylpyrazine and its derivatives, which revealed DNA strand-breakage activity by the generation of radicals in vitro , were recognized from certain morphological changes and the detection of apoptosis-related proteins: cleaved PARP and SAPK/JNK. These results would suggest that sugar-derived dihydropyrazines induce changes in the cells of certain organs and cause various internal injuries in vivo . The biodistribution of 14C-labelled 2,3-dihydro-5,6-dimethylpyrazine was studied in mouse and the autoradiograms showed highly contrasting results. Radioactivity was high in the brain, spinal cord, salivary gland, and thymus and low in the heart, stomach, and blood. The result was supported by the activity (% dose per organ).
  • 关键词:dihydropyrazine;apoptosis;biodistribution;DNA strand breakage;cell line;aminosugar
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