polymyxin


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

polymyxin

[‚päl·i′mik·sən]
(microbiology)
Any of the basic polypeptide antibiotics produced by certain strains of Bacillus polymyxa.
References in periodicals archive ?
While very effective, polymyxins are relegated to a last-resort option due to the high incidence of kidney toxicity (nephrotoxicity), with rates up to 60% for the polymyxin therapy.
All the isolates of Psuedomonas aeruginosa (n=5) were resistant to Ciprofloxacin but sensitive to Polymyxin B.
The drug of choice in the present study came out to be Polymyxin B and Colistin with 60% sensitivity against biofilm producers.
During 2013–2014, polymyxins (including polymyxin B and colistin) exhibited prominent in vitro activity against E.
The mcr-1 gene confers resistance to the polymyxins, including the antibiotic colistin, a medication of last resort for multidrug-resistant infections.
Risk factors for acute kidney injury in patients treated with polymyxin B or colistin methanesulfonate sodium.
aureus strains were susceptible to polymyxin B and vancomycin, respectively.
coli) highly resistant to polymyxins, the last group ofantibioticsleft after all others have failed.
This gene, the researchers said, is widespread in bacteria known as EnterobacteriaceaeAaAaAeAeAaAeAeA -- a large family that includesAaAaAeAeAaAeAeA Salmonella, Esc coli,AaAaAeAeAaAeAeA Yersinia pestis,AaAaAeAeAaAeAeA KlebsiellaAaAaAeAeAaAeAeA andAaAaAeAeAaAeAeA Shigella resistance to a class of antibiotics known as polymyxins, which includes colistin that isAaAaAeAeAaAeAeA used as a drug of last res
1966) using 15 agents which were selected from different antimicrobial classes such as linezolid (LZD, 30g), methicillin (MET, 10g), clindamycin (DA, 2g), minocycline (MH, 30g), vancomycin (VA, 30g), polymyxin B (PB, 300 units), piperacillin /tazobactam (TZP, 110g), aztreonam (ATM, 30g), cefuroxime (CXM, 30g), gentamicin (CN, 10g), amoxicillin/ clavulanic acid (AMC, 30g) (Oxoid, Basingstoke, UK), amikacin (AK, 30g), ceftazidime (CAZ, 30g), doxycycline (DO, 30g), ciprofloxacin (CIP, 5g) (BBL,Becton Dickinson and Co.
However, due to resistance against this wonder drug, Polymyxin B a basic peptide with a narrow therapeutic index is being used as an alternate treatment.
Joshi from Japan described the early use of Polymyxin B in the management of septic shock.