Journal
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
Volume 25, Issue 5, Pages 392-397Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijantimicag.2005.01.018
Keywords
gentamicin; liposomes; surface charge; intraperitoneal; disposition
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The disposition of gentamicin to the normal rat brain, lung, kidney and liver was studied at intervals of 1, 2. 4. 6 and 8 h after intraperitoneal injection of gentamicin encapsulated in positive. negative and neutral liposomes, Compared with the control, which was treated with free gentamicin, liposomes were associated with higher concentrations of gentamicin in the brain and liver, while concentrations were lower in the kidney. The average concentrations of gentamicin in the liver and the brain were highest with positive liposomes. while. gentamicin concentrations in the kidneys and lungs were not influenced by Surface charge of the liposomes, These observations have important implications on the selective delivery of gentamicin to tissues and on the intraperitoneal route of administration. (C) 2005 Elsevier B.V. and the International Society of Chemotherapy. All rights reserved.
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