نتایج جستجو برای: rifapentine polylactic acid

تعداد نتایج: 747691  

Journal: :Microbial Biotechnology 2008

Journal: :Antimicrobial agents and chemotherapy 2008
Kelly Dooley Charles Flexner Judith Hackman Charles A Peloquin Eric Nuermberger Richard E Chaisson Susan E Dorman

Moxifloxacin- and rifapentine-based regimens are under investigation for the treatment of tuberculosis. However, rifapentine may induce enzymes that metabolize moxifloxacin, resulting in decreased moxifloxacin concentrations. In this phase I, two-period, sequential-design study, 13 subjects received 400 mg moxifloxacin daily for 4 days followed by daily moxifloxacin coadministered with 900 mg r...

2011
David P. Holland Gillian D. Sanders Carol D. Hamilton Jason E. Stout

RATIONALE Rifapentine-based regimens for treating latent tuberculosis infection (LTBI) are being considered for future clinical trials, but even if they prove effective, high drug costs may limit their economic viability. OBJECTIVES To inform clinical trial design by estimating the potential costs and effectiveness of rifapentine-based regimens for treatment of latent tuberculosis infection (...

Journal: :Antimicrobial agents and chemotherapy 2014
Eric F Egelund Marc Weiner Rajendra P Singh Thomas J Prihoda Jonathon A L Gelfond Hartmut Derendorf William R Mac Kenzie Charles A Peloquin

Rifapentine is highly protein bound in blood, but the free, unbound drug is the microbiologically active fraction. In this exploratory study, we characterized the free plasma fraction of rifapentine in 41 patients with tuberculosis. We found a lower total rifapentine concentration but significantly higher free rifapentine levels in African patients of black race compared to non-Africans. These ...

Journal: :Drug metabolism and disposition: the biological fate of chemicals 1998
K Reith A Keung P C Toren L Cheng M G Eller S J Weir

Rifapentine is a long-acting cyclopentyl-derivative of rifampin. This study was designed to investigate the mass balance and biotransformation of 14C-rifapentine in humans. Four healthy male volunteers received a single 600-mg oral dose of 14C-rifapentine in a hydroalcoholic solution. Whole blood, urine, and fecal samples were collected before and at frequent intervals after drug administration...

Journal: :Antimicrobial agents and chemotherapy 2004
Chiu-Yeung Chan Carrie Au-Yeang Wing-Wai Yew Chi-Chiu Leung Augustine F B Cheng

Postantibiotic effects (PAEs) of rifapentine, isoniazid, and moxifloxacin against Mycobacterium tuberculosis ATCC 27294 were studied using a radiometric culture system. Rifapentine at 20 mg/liter gave the longest PAE (104 h) among the drugs used alone. The combinations of rifapentine plus isoniazid, rifapentine plus moxifloxacin, and isoniazid plus moxifloxacin gave PAEs of 136.5, 59.0, and 8.3...

Journal: :Journal of the Pediatric Infectious Diseases Society 2014
Marc Weiner Radojka M Savic William R Mac Kenzie Diane Wing Charles A Peloquin Melissa Engle Erin Bliven Thomas J Prihoda Jonathan A L Gelfond Nigel A Scott Susan M Abdel-Rahman Gregory L Kearns William J Burman Timothy R Sterling M Elsa Villarino

BACKGROUND In a phase 3, randomized clinical trial (PREVENT TB) of 8053 people with latent tuberculosis infection, 12 once-weekly doses of rifapentine and isoniazid had good efficacy and tolerability. Children received higher rifapentine milligram per kilogram doses than adults. In the present pharmacokinetic study (a component of the PREVENT TB trial), rifapentine exposure was compared between...

2016
Ioannis L. Liakos Alexandru Mihai Grumezescu Alina Maria Holban Iordache Florin Francesca D’Autilia Riccardo Carzino Paolo Bianchini Athanassia Athanassiou

Polylactic acid was combined with lemongrass essential oil (EO) to produce functional nanocapsules (NCs). The obtained polylactic acid nanoparticles showed antimicrobial activity both with and without the presence of lemongrass oil; however, the presence of EO improved the activity of the NCs. The presence of lemongrass assisted the formation of well-separated NCs and also provided enhanced ant...

Journal: :Molecules 2016
Andreea Botezatu Belinda S Kemp Gary J Pickering

Alkylmethoxypyrazines (MPs) are a class of compounds that can elicit undesirable aroma and flavor characteristics in wine, and resist remediation using traditional wine making approaches. MPs are grape-derived constituents as well as contaminants from Coccinellidae beetles present during wine processing; the latter eliciting an off-flavor referred to as 'ladybug taint'. In this study we investi...

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