{"title":"Inhibitor effect of polyamines on reduction of cytochrome C by superoxide anion.","authors":"A Vanella, A Rapisarda, R Pinturo, V Rizza","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The interaction of polyamines with enzymatically generated free radicals was investigated. The superoxide anion (O-2) was generated in vitro using the xanthine oxidase-hypoxanthine system. Our results show that spermidine or spermine at different concentrations (20-200 mM) inhibit the reduction of cytochrome c; the highest levels of inhibition were obtained adding 200 mM spermidine or spermine. Putrescine (200 mM) affected the reduction of cytochrome c very little.</p>","PeriodicalId":8818,"journal":{"name":"Biochemistry and experimental biology","volume":"16 2","pages":"165-70"},"PeriodicalIF":0.0000,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biochemistry and experimental biology","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The interaction of polyamines with enzymatically generated free radicals was investigated. The superoxide anion (O-2) was generated in vitro using the xanthine oxidase-hypoxanthine system. Our results show that spermidine or spermine at different concentrations (20-200 mM) inhibit the reduction of cytochrome c; the highest levels of inhibition were obtained adding 200 mM spermidine or spermine. Putrescine (200 mM) affected the reduction of cytochrome c very little.
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