This research was conducted to formulate biodegradable itraconazole (ITZ)-loaded d-a-tocopheryl polyethylene glycol 1000 succinate-b-poly(e-caprolactone-ran-glycolide) (TPGS-b-(PCL-ran-PGA); TPP) nanoparticles (NPs) (designed as ITZ-loaded TPP NPs) to improve antifungal efficacy. ITZ-loaded TPP NPs were prepared by a modified double-emulsion method, and their size distribution, morphology, zeta...

The mechanism for the accumulation of itraconazole (ITZ) in its elimination from the brain was studied in rats and mice. The concentration of ITZ in liver tissue declined in parallel with the plasma ITZ concentration until 24 h after intravenous injection of the drug (half-life, 5 h); however, the ITZ in brain tissue rapidly disappeared (half-life, 0.4 h). The time profiles of the brain/plasma ...

PURPOSE Itraconazole (ITZ) is a synthetic triazole antifungal agent, which is widely used for treatment and prevention of fungal infections. The purpose of this study is to develop ITZ-loaded poly(lactic-co-glycolic acid) (PLGA) nanospheres (PLGA-ITZ-NS) as a new sustained-release formulation for intravenous ITZ administration. MATERIALS AND METHODS PLGA-ITZ-NS were prepared by a nanoprecipit...

Biliary secretion of bile acids and phospholipids, both of which are essential components of biliary micelles, are mediated by the bile salt export pump (BSEP/ABCB11) and multidrug resistance 3 P-glycoprotein (MDR3/ABCB4), respectively, and their genetic dysfunction leads to the acquisition of severe cholestatic diseases. In the present study, we found two patients with itraconazole (ITZ)-induc...

Coccidioidal meningitis is a devastating disease that requires long-term therapy with little hope of cure. A rabbit model of coccidioidal meningitis was used to compare the therapeutic efficacies of fluconazole (FCZ) and itraconazole (ITZ). Hydrocortisone-treated male New Zealand white rabbits were infected intracisternally with 5.0x10(4) to 5.4x10(4) arthroconidia of Coccidioides immitis. Oral...

Cyclosporin A (CsA) is a P-glycoprotein (P-gp) inhibitor clinically used as an immunosuppressant. Itraconazole (ITZ) functions as an inhibitor of both the P-gp and CYP3A and is used as a fungistatic/fungicidal agent in human and veterinary medicine. The present studies were designed to investigate the effects of CsA and ITZ on 1) intestinal permeability of amlodipine (a calcium channel blocker ...

The cellular antioxidant system is a target in the antifungal action of amphotericin B (AMB) and itraconazole (ITZ), in filamentous fungi. The sakAΔ mutant of Aspergillus fumigatus, a mitogen-activated protein kinase (MAPK) gene deletion mutant in the antioxidant system, was found to be more sensitive to AMB or ITZ than other A. fumigatus strains, a wild type and a mpkCΔ mutant (a MAPK gene del...

0958-9465/$ see front matter Published by Elsevier doi:10.1016/j.cemconcomp.2009.03.001 * Tel.: +1 301 975 5865; fax: +1 301 990 6891. E-mail address: [email protected] The microstructure of the interfacial transition zone (ITZ) between cement paste and aggregate depends strongly on the nature of the aggregate, specifically its porosity and water absorption. Lightweight aggregates (LWA) with ...

BACKGROUND Resistance to triazoles was recently reported in Aspergillus fumigatus isolates cultured from patients with invasive aspergillosis. The prevalence of azole resistance in A. fumigatus is unknown. We investigated the prevalence and spread of azole resistance using our culture collection that contained A. fumigatus isolates collected between 1994 and 2007. METHODS AND FINDINGS We inve...

Abstract The modulus of elasticity a concrete depends on the elastic stiffness both cementitious matrix and aggregate–ITZ system, which includes any slippage mechanisms under loading between aggregate within interfacial transition zone (ITZ). A procedure is presented in this paper to estimate an system matrix, by considering relative volumes porosities components. method was validated determini...