ArticleAntimicrobial agents and chemotherapy2016
Characterization of Polymyxin B Biodistribution and Disposition in an Animal Model.
Article in Antimicrobial agents and chemotherapy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
46 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.
- Factors Affecting Pharmacokinetics and Dosing Strategies of Polymyxin B in Multidrug-resistant Gram-negative Infected Patients with Renal Impairment: A Systematic Review with Expert Opinion.European journal of drug metabolism and pharmacokinetics · 2026Pooled it
- Pharmacokinetic study of polymyxin B in healthy subjects and subjects with renal insufficiency.Clinical and translational science · 2024Trial
- Effects of Lactobacillus acidophilus AC on growth, intestinal flora and metabolism of juvenile large yellow croaker (Larimichthys crocea).Journal of fish biology · 2026Article
- Physiologically-based pharmacokinetic model to predict loading dose polymyxin B exposure in critically ill patients with sepsis.Frontiers in pharmacology · 2026Article
- A Multi-Center Study of Population Pharmacokinetics of Polymyxin B in Critically Ill Patients.Drug design, development and therapy · 2026Article
- A population pharmacokinetic model library for polymyxin B: clinical implementation of model-informed precision dosing.Frontiers in pharmacology · 2026Article
- Exploration of zileuton protective mechanisms against vancomycin-associated nephrotoxicity.Toxicology and applied pharmacology · 2025Article
- Molecular mechanisms attributed to colistin renal proximal tubular epithelial cytotoxicity.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2025Review
- Assessment of Polymyxin B with Sodium Deoxycholate Sulfate Micelles in a Rat Model to Combat Polymyxin Nephrotoxicity.Antibiotics (Basel, Switzerland) · 2025Article
- A Synthetic Phage-Peptide Conjugate as a Potent Antibacterial Agent forACS central science · 2025Article
- The pharmacokinetic-nephrotoxicity relationships of CMS and CMS-E2 from the perspective of plasma and kidney drug concentrations in rats.Scientific reports · 2025Article
- Biomarker-Driven Pharmacokinetics and Efficacy of Polymyxin B in Critically Ill Patients with XDR-GN Pneumonia.Pharmaceuticals (Basel, Switzerland) · 2025Article
- Clinical outcomes and pharmacokinetics/pharmacodynamics of intravenous polymyxin B treatment for various site carbapenem-resistant gram-negative bacterial infections: a prospective observational multicenter study.Antimicrobial agents and chemotherapy · 2025Observational
- Factors Associated with Successful Treatment of Carbapenem-Resistant Gram-Negative Bacilli Infections Using Intravenous Colistin Sulfate in China: A Real-World Retrospective Study.Infection and drug resistance · 2025Article
- A systematic evaluation of population pharmacokinetic models for polymyxin B in patients with liver and/or kidney dysfunction.Journal of pharmacokinetics and pharmacodynamics · 2024Article
- Evaluating nephrotoxicity reduction in a novel polymyxin B formulation: insights from a 3D kidney-on-a-chip model.Antimicrobial agents and chemotherapy · 2024Article
- Mechanisms of gelofusine protection in an in vitro model of polymyxin B-associated renal injury.American journal of physiology. Renal physiology · 2024Article
- Prediction of tissue exposures of polymyxin-B, amikacin and sulbactam using physiologically-based pharmacokinetic modeling.Frontiers in microbiology · 2024Article
- Polymyxins: recent advances and challenges.Frontiers in pharmacology · 2024Review
- Editorial: Combinational therapy and nanotechnologies in combating pathogenic microbes and antibiotic resistance.Frontiers in pharmacology · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Despite dose-limiting nephrotoxicity concerns, polymyxin B has resurged as the treatment of last resort for multidrug-resistant Gram-negative bacterial infections. However, the pharmacokinetic, pharmacodynamic, and nephrotoxic properties of polymyxin B still are not thoroughly understood. The objective of this study was to provide additional insights into the overall biodistribution and disposition of polymyxin B in an animal model. Sprague-Dawley rats were dosed with intravenous polymyxin B (3 mg/kg of body weight). Drug concentrations in the serum, urine, bile, and tissue (brain, heart, lungs, liver, spleen, kidneys, and skeletal muscle) samples over time were assayed by a validated methodology. Among all the organs evaluated, polymyxin B distribution was highest in the kidneys. The mean renal tissue/serum polymyxin B concentration ratios were 7.45 (95% confidence interval [CI], 4.63 to 10.27) at 3 h and 19.62 (95% CI, 5.02 to 34.22) at 6 h postdose. Intrarenal drug distribution was examined by immunostaining. Using a ratiometric analysis, proximal tubular cells showed the highest accumulation of polymyxin B (Mander's overlap coefficient, 0.998) among all cell types evaluated. Less than 5% of the administered dose was recovered in urine over 48 h, but all 4 major polymyxin B components were detected in the bile over 4 h. These findings corroborate previous results that polymyxin B is highly accumulated in the kidneys, but the elimination likely is via a nonrenal route. Biliary excretion could be one of the routes of polymyxin B elimination, and this should be further explored. The elucidation of mechanism(s) of drug uptake in proximal tubular cells is ongoing.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.