Clinically achievable plasma deferoxamine concentrations are therapeutic in a rat model of Pneumocystis carinii pneumonia.

Abstract:

:The iron-chelating drug deferoxamine (DFO) has been shown to be active in animal models of Pneumocystis carinii pneumonia (PCP), with effective daily intraperitoneal bolus dosages being 400 and 1,000 mg of DFO mesylate kg of body weight-1 in mouse and rat models, respectively. Continuous infusion produced a moderately improved response in a rat model. The data reported here demonstrate that the response achieved by continuous infusion of 195 and 335 mg of DFO mesylate kg-1 day-1 in the rat model is associated with mean concentrations in plasma of 1.3 and 2.5 micrograms of DFO ml-1 and mean concentrations in lung tissue of 4.9 and 6.0 micrograms of DFO g of lung tissue-1, respectively. Since current clinical use of DFO mesylate for the treatment of iron overload produces higher concentrations in the plasma of patients, DFO may prove to be a useful anti-PCP treatment. The 2.4- to 3.8-fold higher DFO concentration observed in lung tissue compared with that observed in plasma may be important in the response of PCP to DFO.

authors

Merali S,Chin K,Del Angel L,Grady RW,Armstrong M,Clarkson AB Jr

doi

10.1128/aac.39.9.2023

subject

Has Abstract

pub_date

1995-09-01 00:00:00

pages

2023-6

issue

9

eissn

0066-4804

issn

1098-6596

journal_volume

39

pub_type

杂志文章
  • Identification of a Novel Plasmid-Borne Gentamicin Resistance Gene in Nontyphoidal Salmonella Isolated from Retail Turkey.

    abstract::The spread of antibiotic-resistant bacteria presents a global health challenge. Efficient surveillance of bacteria harboring antibiotic resistance genes (ARGs) is a critical aspect to controlling the spread. Increased access to microbial genomic data from many diverse populations informs this surveillance but only whe...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.00867-20

    authors: Kim HL,Rodriguez RD,Morris SK,Zhao S,Donato JJ

    更新日期:2020-10-20 00:00:00

  • Effect of parenteral antibiotic administration on establishment of intestinal colonization by Candida glabrata in adult mice.

    abstract::We examined the effect of antibiotic treatment on establishment of intestinal colonization by Candida glabrata in adult mice. Subcutaneous ceftriaxone, piperacillin-tazobactam, clindamycin, and metronidazole promoted increased density of stool colonization, whereas cefepime, levofloxacin, and aztreonam did not. These ...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.49.1.438-440.2005

    authors: Pultz NJ,Stiefel U,Ghannoum M,Helfand MS,Donskey CJ

    更新日期:2005-01-01 00:00:00

  • Penicillin-binding proteins of penicillin-susceptible and -resistant pneumococci: immunological relatedness of altered proteins and changes in peptides carrying the beta-lactam binding site.

    abstract::There are several major differences between the penicillin-binding proteins (PBPs) of highly penicillin-resistant and -susceptible strains of pneumococci. The highest-molecular-size PBP 1a (98 kilodaltons [kDa]) of susceptible pneumococci is not detectable in resistant bacteria. Instead, resistant strains contain a PB...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.30.4.553

    authors: Hakenbeck R,Ellerbrok H,Briese T,Handwerger S,Tomasz A

    更新日期:1986-10-01 00:00:00

  • Amlodipine Increases the Therapeutic Potential of Ravuconazole upon Trypanosoma cruzi Infection.

    abstract::Mining existing agents that enhance the therapeutic potential of ergosterol biosynthesis inhibitors (EBI) is a promising approach to improve Chagas disease chemotherapy. In this study, we evaluated the effect of ravuconazole, an EBI, combined with amlodipine, a calcium channel blocker, upon Trypanosoma cruzi experimen...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.02497-19

    authors: Machado YA,Bahia MT,Caldas IS,Mazzeti AL,Novaes RD,Vilas Boas BR,Santos LJS,Martins-Filho OA,Marques MJ,Diniz LF

    更新日期:2020-07-22 00:00:00

  • Relationship of early readings of minimal inhibitory concentrations to the results of overnight tests.

    abstract::Broth dilution minimal inhibitory concentration (MIC) readings were compared after different incubation periods and with different inoculum concentrations. The purpose was to determine the best conditions for obtaining early results as close as possible to overnight readings. Initially, 76 antibiotic-organism combinat...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.8.4.429

    authors: Lampe MF,Aitken CL,Dennis PG,Forsythe PS,Patrick KE,Schoenknecht FD,Sherris JC

    更新日期:1975-10-01 00:00:00

  • In vitro activity of tosufloxacin (A-61827; T-3262) against selected genital pathogens.

    abstract::The in vitro activity of tosufloxacin (A-61827; T-3262) against 15 clinical isolates of Chlamydia trachomatis and 31 recent clinical isolates of Neisseria gonorrhoeae, including 15 spectinomycin-resistant N. gonorrhoeae and 16 penicillinase-producing N. gonorrhoeae, was determined. Tosufloxacin was compared with doxyc...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.34.6.971

    authors: Segreti J,Hirsch DJ,Harris AA,Kapell KS,Orbach H,Kessler HA

    更新日期:1990-06-01 00:00:00

  • Anidulafungin for neonatal hematogenous Candida meningoencephalitis: identification of candidate regimens for humans using a translational pharmacological approach.

    abstract::Hematogenous Candida meningoencephalitis (HCME) is a serious infection in premature neonates. Anidulafungin is an echinocandin antifungal agent with potent activity against Candida spp., but its efficacy and optimal regimens for human neonates with HCME are not known. A well-validated rabbit model of HCME was used to ...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.05826-11

    authors: Warn PA,Livermore J,Howard S,Felton TW,Sharp A,Gregson L,Goodwin J,Petraitiene R,Petraitis V,Cohen-Wolkowiez M,Walsh TJ,Benjamin DK Jr,Hope WW

    更新日期:2012-02-01 00:00:00

  • In vitro susceptibility of Clostridium difficile isolates from patients with antibiotic-associated diarrhea or colitis.

    abstract::In vitro susceptibility tests were performed on 84 strains of Clostridium difficile to 11 antimicrobial agents. All isolates were from the stools of patients with antibiotic-associated diarrhea or colitis in which there was a cytopathic toxin that was neutralized by Clostridium sordellii antitoxin. Over 95% of the str...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.17.4.695

    authors: Dzink J,Bartlett JG

    更新日期:1980-04-01 00:00:00

  • Comparison of clindamycin, erythromycin, and methicillin in streptococcal infections in monkeys.

    abstract::Intravenous inoculation of a group A hemolytic streptococcus caused lethal infections in all of eight untreated monkeys. Intramuscular injections of clindamycin-2-phosphate in a daily dose of 25 mg/kg given in equal morning and afternoon doses for 10 days resulted in survival of all of eight monkeys. Similar results w...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.1.6.460

    authors: Carlisle HN,Saslaw S

    更新日期:1972-06-01 00:00:00

  • Cellular pharmacology of the anti-hepatitis B virus agent beta-L-2',3'-didehydro-2',3'-dideoxy-N4-hydroxycytidine: relevance for activation in HepG2 cells.

    abstract::Beta-l-2',3'-didehydro-2',3'-dideoxy-N(4)-hydroxycytidine (l-Hyd4C) was demonstrated to be an effective and highly selective inhibitor of hepatitis B virus (HBV) replication in HepG2.2.15 cells (50% effective dose [ED(50)] = 0.03 microM; 50% cytotoxic dose [CD(50)] = 2,500 microM). In the present study, we investigate...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01176-09

    authors: Matthes E,Bünger H

    更新日期:2010-01-01 00:00:00

  • Induced resistance to methionyl-tRNA synthetase inhibitors in Trypanosoma brucei is due to overexpression of the target.

    abstract::New classes of antiparasitic drugs active against Trypanosoma brucei are needed to combat human African trypanosomiasis. Inhibitors of methionyl-tRNA synthetase (MetRS) have excellent potential to be developed for this purpose (S. Shibata, J. R. Gillespie, A. M. Kelley, A. J. Napuli, Z. Zhang, K. V. Kovzun, R. M. Pefl...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.02578-12

    authors: Ranade RM,Gillespie JR,Shibata S,Verlinde CL,Fan E,Hol WG,Buckner FS

    更新日期:2013-07-01 00:00:00

  • In vitro activities of five fluoroquinolone compounds against strains of Streptococcus pneumoniae with resistance to other antimicrobial agents.

    abstract::Ciprofloxacin, clinafloxacin, PD 131628, sparfloxacin, and trovafloxacin were tested against 236 strains of Streptococcus pneumoniae, most of which were resistant to other agents. Resistance to multiple antibiotics did not affect the organism's susceptibility to the fluoroquinolones. The fluoroquinolones with in vitro...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.40.10.2431

    authors: Barry AL,Fuchs PC,Brown SD

    更新日期:1996-10-01 00:00:00

  • Controlled Release of Plectasin NZ2114 from a Hybrid Silicone-Hydrogel Material for Inhibition of Staphylococcus aureus Biofilm.

    abstract::Staphylococcus aureus is a major human pathogen in catheter-related infections. Modifying catheter material with interpenetrating polymer networks is a novel material technology that allows for impregnation with drugs and subsequent controlled release. Here, we evaluated the potential for combining this system with pl...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.00604-17

    authors: Klein K,Grønnemose RB,Alm M,Brinch KS,Kolmos HJ,Andersen TE

    更新日期:2017-06-27 00:00:00

  • Relationship between rifampin MICs for and rpoB mutations of Mycobacterium tuberculosis strains isolated in Japan.

    abstract::We analyzed the relationship between rifampin MICs and rpoB mutations of 40 clinical isolates of Mycobacterium tuberculosis. A point mutation in either codon 516, 526, or 531 was found in 13 strains requiring MICs of > or = 64 micrograms/ml, while 21 strains requiring MICs of < or = 1 microgram/ml showed no alteration...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.40.4.1053

    authors: Ohno H,Koga H,Kohno S,Tashiro T,Hara K

    更新日期:1996-04-01 00:00:00

  • Susceptibility of clinical isolates of bacteria to cefoxitin and cephalothin.

    abstract::The susceptibility of 4,929 unselected clinical isolates of bacteria to cefoxitin and cephalothin was determined by the single-disk method, using a computer-associated electronic zone analyzer to obtain, record, and process measurements of sizes of zones of inhibition. Both cefoxitin and cephalothin were effective aga...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.6.3.320

    authors: Moellering RC Jr,Dray M,Kunz LJ

    更新日期:1974-09-01 00:00:00

  • IMP dehydrogenase from the protozoan parasite Toxoplasma gondii.

    abstract::The opportunistic apicomplexan parasite Toxoplasma gondii damages fetuses in utero and threatens immunocompromised individuals. The toxicity associated with standard antitoxoplasmal therapies, which target the folate pathway, underscores the importance of examining alternative pharmacological strategies. Parasitic pro...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.49.6.2172-2179.2005

    authors: Sullivan WJ Jr,Dixon SE,Li C,Striepen B,Queener SF

    更新日期:2005-06-01 00:00:00

  • Intrapulmonary Pharmacokinetics of Levonadifloxacin following Oral Administration of Alalevonadifloxacin to Healthy Adult Subjects.

    abstract::Alalevonadifloxacin (WCK 2349) is a novel l-alanine ester prodrug of levonadifloxacin that is being developed as an oral fluoroquinolone antibiotic. The primary objective of this study was to determine and compare plasma, epithelial lining fluid (ELF), and alveolar macrophage (AM) concentrations of levonadifloxacin fo...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.02297-17

    authors: Rodvold KA,Gotfried MH,Chugh R,Gupta M,Yeole R,Patel A,Bhatia A

    更新日期:2018-02-23 00:00:00

  • Comparison of the essential cellular functions of the two murA genes of Bacillus anthracis.

    abstract::Targeted antisense and gene replacement mutagenesis experiments demonstrate that only the murA1 gene and not the murA2 gene is required for the normal cellular growth of Bacillus anthracis. Antisense-based modulation of murA1 gene expression hypersensitizes cells to the MurA-specific antibiotic fosfomycin despite the ...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01594-07

    authors: Kedar GC,Brown-Driver V,Reyes DR,Hilgers MT,Stidham MA,Shaw KJ,Finn J,Haselbeck RJ

    更新日期:2008-06-01 00:00:00

  • Cryptococcus neoformans resistance to echinocandins: (1,3)beta-glucan synthase activity is sensitive to echinocandins.

    abstract::(1,3)Beta-D-glucan synthase (EC 2.4.1.34. UDP-glucose: 1,3-beta-D-glucan 3-beta-glucosyltransferase) uses UDP-glucose as substrate and catalyzes the polymerization of glucose ([1,3]-beta-linkages) to form the major carbohydrate component of the fungal cell wall. We have optimized in vitro assay conditions for (1,3)bet...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.49.7.2851-2856.2005

    authors: Maligie MA,Selitrennikoff CP

    更新日期:2005-07-01 00:00:00

  • Liquid chromatographic assay of ketoconazole.

    abstract::A reverse-phase, high-pressure liquid chromatographic method for the rapid and quantitative determination of ketoconazole has been developed. Drug levels from 0.5 to 10 microgram/ml can be determined in either yeast nitrogen base medium or human serum by using an octadecylsilane column. A retention time of 4.9 +/- 0.1...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.19.1.110

    authors: Andrews FA,Peterson LR,Beggs WH,Crankshaw D,Sarosi GA

    更新日期:1981-01-01 00:00:00

  • The Race To Find Antivirals for Zika Virus.

    abstract::Zika virus (ZIKV), a flavivirus transmitted by mosquitoes, was an almost neglected pathogen until its introduction in the Americas in 2015 and its subsequent explosive spread throughout the continent, where it has infected millions of people. The virus has caused social and sanitary alarm, mainly due to its associatio...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章,评审

    doi:10.1128/AAC.00411-17

    authors: Saiz JC,Martín-Acebes MA

    更新日期:2017-05-24 00:00:00

  • In vitro susceptibility of Madurella mycetomatis to posaconazole and terbinafine.

    abstract::Presently, therapy of eumycetoma in Sudan is still based on surgery combined with prolonged ketoconazole therapy. This usually results in a poor clinical outcome. To determine if posaconazole and terbinafine could offer better therapeutic alternatives, the in vitro susceptibilities of 34 Madurella mycetomatis strains ...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01045-10

    authors: van Belkum A,Fahal AH,van de Sande WW

    更新日期:2011-04-01 00:00:00

  • Antifungal activity of the pradimicin derivative BMS 181184 in the treatment of experimental pulmonary aspergillosis in persistently neutropenic rabbits.

    abstract::The activity of the pradimicin derivative BMS 181184 was evaluated in a model of invasive pulmonary aspergillosis in persistently neutropenic rabbits and compared with that of amphotericin B deoxycholate. BMS 181184 at total daily doses of 50 and 150 mg/kg of body weight was at least as effective as amphotericin B at ...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.42.9.2399

    authors: Gonzalez CE,Groll AH,Giri N,Shetty D,Al-Mohsen I,Sein T,Feuerstein E,Bacher J,Piscitelli S,Walsh TJ

    更新日期:1998-09-01 00:00:00

  • Updated functional classification of beta-lactamases.

    abstract::Two classification schemes for beta-lactamases are currently in use. The molecular classification is based on the amino acid sequence and divides beta-lactamases into class A, C, and D enzymes which utilize serine for beta-lactam hydrolysis and class B metalloenzymes which require divalent zinc ions for substrate hydr...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章,评审

    doi:10.1128/AAC.01009-09

    authors: Bush K,Jacoby GA

    更新日期:2010-03-01 00:00:00

  • Microbicides Alter the Expression and Function of RND-Type Efflux Pump AdeABC in Biofilm-Associated Cells of Acinetobacter baumannii Clinical Isolates.

    abstract::Acinetobacter baumannii is a Gram-negative bacterium that causes nosocomial infections worldwide. This microbe's propensity to form biofilms allows it to persist and to survive on clinical abiotic surfaces for long periods. In fact, A. baumannii biofilm formation and its multidrug-resistant nature severely compromise ...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01045-15

    authors: Krishnamoorthy S,Shah BP,Lee HH,Martinez LR

    更新日期:2015-10-12 00:00:00

  • 1,5-benzodiazepines, a novel class of hepatitis C virus polymerase nonnucleoside inhibitors.

    abstract::The exogenous control of hepatitis C virus (HCV) replication can be mediated through the inhibition of the RNA-dependent RNA polymerase (RdRp) activity of NS5B. Small-molecule inhibitors of NS5B include nucleoside and nonnucleoside analogs. Here, we report the discovery of a novel class of HCV polymerase nonnucleoside...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.00669-08

    authors: Nyanguile O,Pauwels F,Van den Broeck W,Boutton CW,Quirynen L,Ivens T,van der Helm L,Vandercruyssen G,Mostmans W,Delouvroy F,Dehertogh P,Cummings MD,Bonfanti JF,Simmen KA,Raboisson P

    更新日期:2008-12-01 00:00:00

  • Multiple-dose pharmacokinetics of cefprozil and its impact on intestinal flora of volunteers.

    abstract::The pharmacokinetics of cefprozil were determined with 12 volunteers (8 received cefprozil and 4 received a placebo) after oral administration of 500 mg every 12 h over an 8-day period in a randomized, double-blind, placebo-controlled design. Concentrations in serum and urine were measured by high-pressure liquid chro...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1128/aac.36.1.144

    authors: Lode H,Müller C,Borner K,Nord CE,Koeppe P

    更新日期:1992-01-01 00:00:00

  • Broad-spectrum synergistic antiviral activity of selenazofurin and ribavirin.

    abstract::The antiviral effects of selenazofurin (2-beta-D-ribofuranosylselenazole-4-carboxamide, selenazole), ribavirin (1-beta-D-ribofuranosyl-1,2,4-triazole-3-carboxamide), and 3-deazaguanosine (6-amino-1-beta-D-ribofuranosylimidazo-[4.5-C]pyridin-4(5H)-one) were investigated separately and in various combinations in an in v...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/aac.26.4.466

    authors: Kirsi JJ,McKernan PA,Burns NJ 3rd,North JA,Murray BK,Robins RK

    更新日期:1984-10-01 00:00:00

  • Integron-Associated DfrB4, a Previously Uncharacterized Member of the Trimethoprim-Resistant Dihydrofolate Reductase B Family, Is a Clinically Identified Emergent Source of Antibiotic Resistance.

    abstract::Whole-genome sequencing of trimethoprim-resistant Escherichia coli clinical isolates identified a member of the trimethoprim-resistant type II dihydrofolate reductase gene family (dfrB). The dfrB4 gene was located within a class I integron flanked by multiple resistance genes. This arrangement was previously reported ...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.02665-16

    authors: Toulouse JL,Edens TJ,Alejaldre L,Manges AR,Pelletier JN

    更新日期:2017-04-24 00:00:00

  • In Vivo Characterization of the Activation and Interaction of the VanR-VanS Two-Component Regulatory System Controlling Glycopeptide Antibiotic Resistance in Two Related Streptomyces Species.

    abstract::The VanR-VanS two-component system is responsible for inducing resistance to glycopeptide antibiotics in various bacteria. We have performed a comparative study of the VanR-VanS systems from two streptomyces strains, Streptomyces coelicolor and Streptomyces toyocaensis, to characterize how the two proteins cooperate t...

    journal_title:Antimicrobial agents and chemotherapy

    pub_type: 杂志文章

    doi:10.1128/AAC.01367-15

    authors: Novotna GB,Kwun MJ,Hong HJ

    更新日期:2015-12-28 00:00:00