respiratory chain

(redirected from cytochrome system)
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res·pi·ra·to·ry chain

a sequence of energy-liberating oxidation-reduction reactions whereby electrons are accepted from reduced compounds and eventually transferred to oxygen with the formation of water.
References in periodicals archive ?
The interaction appears to be due to inhibition of the CYP3A4 system, and could be aggravated by polymorphisms in the protein or by the down-regulation of the cytochrome system seen in cancer patients.