期刊
NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE
卷 3, 期 3, 页码 239-243出版社
ELSEVIER
DOI: 10.1016/j.nano.2007.05.001
关键词
nanoparticles; chemotherapy; econazole; bioavailability
The present study was designed to evaluate the chemotherapeutic potential of alginate nanoparticle-encapsulated econazole and antitubercular drugs (ATDs) against murine tuberculosis. Alginate nanoparticles encapsulating econazole and ATDs were prepared by the cation-induced controlled gelification of alginate and were characterized. Drugs were analyzed by high-performance liquid chromatography. All the ATDs were detected above minimum inhibitory concentrations for as long as 15 days and econazole until the day 8 in organs (lungs, liver, and spleen) after administration of encapsulated drugs, whereas free drugs remained detectable for only 12 to 24 hours. Eight doses of alginate nanoparticle-encapsulated econazole or 112 doses of free econazole reduced bacterial burden by more than 90% in the lungs and spleen of mice infected with Myeobacterium tuberculosis. Econazole (free or encapsulated) could replace rifampicin and isoniazid during chemotherapy of murine tuberculosis. Alginate nanoparticles reduced the dosing frequency of azoles and ATDs by 15-fold. Alginate nanoparticles are the ideal carriers of azole and antitubercular drugs, which can reduce dosing frequency of azoles as well as ATDs for the better management of tuberculosis. (C) 2007 Published by Elsevier Inc.
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