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Quinone mediated electron transport system in the filarial parasite Setaria digitata

Biochemical and Biophysical Research Communications, ISSN: 0006-291X, Vol: 174, Issue: 1, Page: 386-392
1991
  • 10
    Citations
  • 0
    Usage
  • 4
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    10
    • Citation Indexes
      10
  • Captures
    4

Article Description

Setaria digitata, a cattle filarial parasite, is known to have peculiarities such as hydrogen peroxide (H 2 O 2 ) production, cyanide insensitivity, absence of cytochromes and presence of quinones. Estimation of mitochondrial H 2 O 2 with different substrates and inhibitors showed that salicylhydroxamic acid (SHAM), the alternative oxidase inhibitor, inhibited the H 2 O 2 production maximally. Based on the inhibitory studies with rotenone, antimycin A, o-hydroxydiphenyl, SHAM and 2 thenoyltrifluoroacetone, a mechanism for the electron transport is proposed. Quinone Q 8 seems to have a central role, hence inhibitors at the level of quinones might prove to be effective in designing drugs for filariasis.

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