RT Journal Article SR Electronic T1 Cytochromes P450 and Flavin Monooxygenases—Targets and Sources of Nitric Oxide JF Drug Metabolism and Disposition JO Drug Metab Dispos FD American Society for Pharmacology and Experimental Therapeutics SP 1366 OP 1376 VO 29 IS 11 A1 Morgan, Edward T. A1 Ullrich, Volker A1 Daiber, Andreas A1 Schmidt, Patrick A1 Takaya, Naoki A1 Shoun, Hirofumi A1 McGiff, John C. A1 Oyekan, Adebayo A1 Hanke, Craig J. A1 Campbell, William B. A1 Park, Chang-Shin A1 Kang, Ju-Seop A1 Yi, Hyeon-Gyu A1 Cha, Young-Nam A1 Mansuy, Daniel A1 Boucher, Jean-Luc YR 2001 UL http://dmd.aspetjournals.org/content/29/11/1366.abstract AB This article is a report on a symposium sponsored by the American Society for Pharmacology and Experimental Therapeutics and held at the Experimental Biology 01 meeting in Orlando, FL. The presentations addressed the mechanisms of inhibition and regulation of cytochrome P450 and flavin monooxygenase enzymes by nitric oxide. They also highlighted the consequences of these effects on metabolism of drugs and volatile amines as well as on important physiological parameters, such as control of blood pressure, renal ion transport, and steroidogenesis. This is achieved via regulation of P450-dependent prostacyclin, hydroxyeicosatetraenoic acid, and epoxyeicosatrienoic acid formation. Conversely, the mechanisms and relative importance of nitric oxide synthases and P450 enzymes in NO production from endogenous and synthetic substrates were also addressed. The American Society for Pharmacology and Experimental Therapeutics