Influence of human serum on pharmacodynamic properties of an investigational glycopeptide, LY333328, and comparator agents against Staphylococcus aureus
G G Zhanel, I D Kirkpatrick, D J Hoban, A M Kabani, J A Karlowsky, G G Zhanel, I D Kirkpatrick, D J Hoban, A M Kabani, J A Karlowsky
Abstract
The MICs and MBCs of 15 antibiotics for two strains of Staphylococcus aureus were determined in Mueller-Hinton broth (MHB) and 90% serum-10% MHB. Subsequent experiments established that highly protein-bound antibiotics (>/=80%), such as LY333328, demonstrated higher MICs and MBCs, less killing over an 8-h interval, and shorter postantibiotic effects in 90% serum-10% MHB than in MHB alone. Albumin was demonstrated to be almost solely responsible for changes in the aforementioned pharmacodynamic parameters of LY333328.
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Source: PubMed