Use of a phosphorylated spin trap to discriminate between the hydroxyl radical and other oxidising species

Author(s):  
Jean-Louis Clément ◽  
Bruce C. Gilbert ◽  
Win F. Ho ◽  
Natalie D. Jackson ◽  
Maurice S. Newton ◽  
...  
Keyword(s):  

1989 ◽  
Vol 261 (3) ◽  
pp. 831-839 ◽  
Author(s):  
W D Flitter ◽  
R P Mason

The reaction of the hydroxyl radical, generated by a Fenton system, with pyrimidine deoxyribonucleotides was investigated by using the e.s.r. technique of spin trapping. The spin trap t-nitrosobutane was employed to trap secondary radicals formed by the reaction of the hydroxyl radical with these nucleotides. The results presented here show that hydroxyl-radical attack on thymidine, 2-deoxycytidine 5-monophosphate and 2-deoxyuridine 5-monophosphate produced nucleotide-derived free radicals. The results indicate that .OH radical attack occurs predominantly at the carbon-carbon double bond of the pyrimidine base. The e.s.r. studies showed a good correlation with previous results obtained by authors who used x- or gamma-ray irradiation to generate the hydroxyl radical. A thiobarbituric acid assay was also used to monitor the damage produced to the nucleotides by the Fenton system. These results showed qualitative agreement with the spin-trapping studies.



1982 ◽  
Vol 20 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Y. Lion ◽  
J. Decuyper ◽  
A. van de Vorst ◽  
J. Piette


ChemInform ◽  
2010 ◽  
Vol 29 (49) ◽  
pp. no-no
Author(s):  
J.-L. CLEMENT ◽  
B. C. GILBERT ◽  
W. F. HO ◽  
N. D. JACKSON ◽  
M. S. NEWTON ◽  
...  
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2000 ◽  
Vol 65 (14) ◽  
pp. 4460-4463 ◽  
Author(s):  
Gerald M. Rosen ◽  
Pei Tsai ◽  
Eugene D. Barth ◽  
Gilbert Dorey ◽  
Patrick Casara ◽  
...  
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2004 ◽  
Vol 38 (4) ◽  
pp. 385-392 ◽  
Author(s):  
Chiho Nishizawa ◽  
Keizo Takeshita ◽  
Jun-ichi Ueda ◽  
Michiko Mizuno ◽  
Kazuo T. Suzuki ◽  
...  


Life Sciences ◽  
2003 ◽  
Vol 72 (15) ◽  
pp. 1773-1780 ◽  
Author(s):  
Minoru Yoshida ◽  
Atsushi Fukuda ◽  
Masayuki Hara ◽  
Atsushi Terada ◽  
Yousuke Kitanaka ◽  
...  


Author(s):  
Pei Tsai ◽  
Martyna Elas† ◽  
Adrian D. Parasca ◽  
Eugene D. Barth ◽  
Colin Mailer ◽  
...  
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