Literature DB >> 8282228

The syringe nitroxide free radical--Part II.

G R Buettner1, M K Sharma.   

Abstract

Some plastic syringes introduce a nitroxide free radical into the fluids they contain. The EPR spectrum shows a triplet with aN = 17.0 +/- 0.1 G in plasma. We report here that this nitroxide/hydroxylamine couple serves as an antioxidant system, whose redox potential appears to be between that of vitamin C and vitamin E. This adventitious antioxidant can alter the course of free radical processes.

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Year:  1993        PMID： 8282228      PMCID： PMC4682674          DOI： 10.3109/10715769309056s227

Source DB:  PubMed          Journal:  Free Radic Res Commun        ISSN： 8755-0199


  8 in total

1.  Free radicals from plastic syringes.

Authors:  G R Buettner; B D Scott; R E Kerber; A Mügge
Journal:  Free Radic Biol Med       Date:  1991       Impact factor: 7.376

2.  Chemical and electrochemical reduction rates of cyclic nitroxides (nitroxyls).

Authors:  S Morris; G Sosnovsky; B Hui; C O Huber; N U Rao; H M Swartz
Journal:  J Pharm Sci       Date:  1991-02       Impact factor: 3.534

3.  On the reaction of superoxide with DMPO/.OOH.

Authors:  G R Buettner
Journal:  Free Radic Res Commun       Date:  1990

4.  Ascorbate oxidation: UV absorbance of ascorbate and ESR spectroscopy of the ascorbyl radical as assays for iron.

Authors:  G R Buettner
Journal:  Free Radic Res Commun       Date:  1990

5.  Interaction of vitamin C and vitamin E during free radical stress in plasma: an ESR study.

Authors:  M K Sharma; G R Buettner
Journal:  Free Radic Biol Med       Date:  1993-06       Impact factor: 7.376

Review 6.  The pecking order of free radicals and antioxidants: lipid peroxidation, alpha-tocopherol, and ascorbate.

Authors:  G R Buettner
Journal:  Arch Biochem Biophys       Date:  1993-02-01       Impact factor: 4.013

7.  Ascorbate free radical as a marker of oxidative stress: an EPR study.

Authors:  G R Buettner; B A Jurkiewicz
Journal:  Free Radic Biol Med       Date:  1993-01       Impact factor: 7.376

8.  Optimal EPR detection of weak nitroxide spin adduct and ascorbyl free radical signals.

Authors:  G R Buettner; K P Kiminyo
Journal:  J Biochem Biophys Methods       Date:  1992-03
  8 in total

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