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  • Title: Effects of induction on the metabolism and cytochrome P-450 binding of harman and other beta-carbolines.
    Author: Tweedie DJ, Prough RA, Burke MD.
    Journal: Xenobiotica; 1988 Jul; 18(7):785-96. PubMed ID: 3176517.
    Abstract:
    1. The metabolism of harman by liver microsomes from non-induced, phenobarbitone (PB)-induced and 3-methylcholanthrene (MC)-induced mice was investigated. Initial reaction rates for harman disappearance were measured and showed a 4-fold induction by PB and a 10.6-fold induction by MC. 2. The major metabolite formed with each microsomal preparation was identified as 6-hydroxyharman. 3. Microsomal cytochrome P-450 binding was measured for harman and other beta-carbolines and both Type I and Type II binding spectra were observed, being dependent upon the mode of induction.
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