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Primaquine can mediate hydroxyl radical generation by Trypanosoma cruzi extracts.

Authors
  • Augusto, O
  • Alves, M J
  • Colli, W
  • Filardi, L S
  • Brener, Z
Type
Published Article
Journal
Biochemical and biophysical research communications
Publication Date
Mar 28, 1986
Volume
135
Issue
3
Pages
1029–1034
Identifiers
PMID: 3008737
Source
Medline
License
Unknown

Abstract

Primaquine increases the NAD(P)H dependent oxygen consumption and hydroxyl radical generation by extracts of Trypanosoma cruzi, the causative agent of Chagas' disease. Spin-trapping studies show that hydroxyl radical yield is completely inhibited by catalase and slightly increased by SOD, indicating that radical generation is dependent on the pair primaquine-NAD(P)H and their interaction product, H2O2. Primaquine effects upon Trypanosoma cruzi extracts are compared with those obtained with nifurtimox, a compound effective in the treatment of Chagas' disease. The observed similarity suggests that hydroxyl radical may be involved in the antiprotozoan activity of primaquine.

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