Biopharmaceutical Characterization of Nebulized Antimicrobial Agents in Rats. 4. Aztreonam.

نویسندگان

  • Sandrine Marchand
  • Nicolas Grégoire
  • Julien Brillault
  • Isabelle Lamarche
  • Patrice Gobin
  • William Couet
چکیده

The aim of this study was to determine aztreonam (ATM) membrane permeability using Calu-3 cells and its plasma and pulmonary epithelial lining fluid (ELF) pharmacokinetics in rats after intratracheal nebulization and intravenous administration (15 mg · kg(-1)). ATM exhibits low Calu-3 permeability (0.07 ± 0.02 × 10(-6) cm · s(-1)), and a high area under the ELF/unbound plasma concentration time curve between 0 and infinity (AUCELF/AUCu,plasma) ratio of 1,069 was observed after nebulization in rats. These results confirm that ATM is a low-permeability molecule and a good candidate for nebulization.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Biopharmaceutical Characterization of Nebulized Antimicrobial Agents in Rats: 3. Tobramycin.

The aim of this study was to determine the biopharmaceutical characteristics of tobramycin (TOB) after nebulization in rats. TOB was administered by intravenous (i.v.) bolus or intratracheal nebulization (3 mg · kg(-1)), and concentrations were determined in plasma and epithelial lining fluid (ELF) by liquid chromatography-tandem mass spectrometry. The ratio of the TOB concentration in ELF to t...

متن کامل

Biopharmaceutical characterization of nebulized antimicrobial agents in rats: 2. Colistin.

The purpose of this study was to investigate the pharmacokinetic properties of colistin following intrapulmonary administration of colistin sulfate in rats. Colistin was infused or delivered in nebulized form at a dose of 0.35 mg/kg of body weight in rats, and plasma drug concentrations were measured for 4 h after administration. Bronchoalveolar lavages (BAL) were also conducted at 0.5, 2, and ...

متن کامل

Disposition of [14C]aztreonam in rats, dogs, and monkeys.

[14C]aztreonam was administered as single 25-mg/kg doses to dogs (intravenously and subcutaneously) and monkeys (intramuscularly and intravenously) and as single 50-mg/kg doses (intramuscularly and intravenously) to rats. In rats and dogs, radioactive moieties were excreted primarily in urine; in monkeys, they were excreted about equally in urine and feces. Unchanged aztreonam accounted for 77 ...

متن کامل

The association of biofilm formation and sub-minimal inhibitory concentrations of antimicrobial agents

Introduction: Although bacteria producing biofilm are more resistance to antimicrobial agents, biofilm formation can stimulated by sub-minimal inhibitory concentrations (sub-MICs) of some antimicrobial agents. Therefore, we designed present study to investigate the  in vitro efficacy of several antibiotics (including ceftazidime, piperacillin, ticarcillin, carbenicillin, aztreonam, merop...

متن کامل

Distribution of [14C]aztreonam in rat tissue.

[14C]aztreonam was administered intramuscularly (50 mg/kg) to male and female rats. Groups of 10 rats (five male and five female) were sacrificed at 0.25, 2, 6, and 24 h after dosing. Blood and various tissues were removed from six rats (three male and three female) in each group for determination of total radioactivity and unchanged aztreonam by liquid scintillation counting and thin-layer rad...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Antimicrobial agents and chemotherapy

دوره 60 5  شماره 

صفحات  -

تاریخ انتشار 2016