title: Erythromycin estolate vs. erythromycin base, surface excess properties and surface scanning changes in isolated liver cell systems.
abstract: Chang liver cells and isolated rat hepatocytes were exposed to medium containing different concentrations of erythromycin estolate or erythromycin base for 1-5 h. Hepatotoxicity was quantitated by measuring leakage of enzymes from cells into surrounding medium and the damage to the plasma cell membrane seen under surface scanning electron microscopy. Only the cells exposed to erythromycin estolate showed significantly greater enzyme leakage than controls and appeared severely affected by cytopathic changes when observed under scanning electron microscopy.
mesh_terms: D000818:Animals; D004917:Erythromycin / Q000031:analogs & derivatives* / Q000378:metabolism / Q000633:toxicity*; D004918:Erythromycin Estolate / Q000633:toxicity*; D005966:Glucuronidase / Q000032:analysis; D066298:In Vitro Techniques; D007770:L-Lactate Dehydrogenase / Q000032:analysis; D008099:Liver / Q000166:cytology / Q000187:drug effects* / Q000648:ultrastructure; D008297:Male; D008855:Microscopy, Electron, Scanning; D051381:Rats; D013499:Surface Properties
chemical_list: D004917:Erythromycin; D007770:L-Lactate Dehydrogenase; D005966:Glucuronidase; D004918:Erythromycin Estolate