Macrolide antibiotics like Erythromycin and Tri-acetyl oleandomycin (TAO) are metabolized to nitrosoderivatives which cause inactivation of Cytochrome P-450 by forming stable complex with the Iron of the hemoporphyrin. Several derivatives of erythromycin having lost their cladinose moiety are stronger inducer of liver cytochrome P-450 itself. The major form of cytochrome P-450 induced by all these macrolides in rat liver electrophoretically and immunologically indistinguishable from the major form induced by pregnenolone 16 alpha carbonitrile (PCN). This form is particularly able to metabolize macrolide and to lead to the corresponding 456 nm absorbing cytochrome P-450 complexes in vivo and in vitro.
CITATION STYLE
Dansette, P. M., Delaforge, M., Sartori, E., Beaune, P., Jaouen, M., & Mansuy, D. (1986). Drug interactions with macrolide antibiotics: specificity of pseudo-suicide inhibition and induction of cytochrome P-450. Advances in Experimental Medicine and Biology, 197, 155–162. https://doi.org/10.1007/978-1-4684-5134-4_12
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