Non disponible en dehors du Royaume-Uni et de l'Irlande
Application
Colistin sodium methanesulfate is used to permeabilize bacterial cell membranes and to study mannose-resistant haemagglutination. It is used to study effective treatments of P. aeruginosa infections in cystic fibrosis patients and to study the pharmacokinetics and BAL concentration of colistin in critically ill patients .
Biochem/physiol Actions
Mode of Action: Binds to lipids on the cell cytoplasmic membrane of Gram-negative bacteria and disrupts the cell wall integrity.Antimicrobial spectrum: Gram-negative bacteria.
Colistin is a cationic, multicomponent lipopeptide antibiotic. It consists of a cyclic heptapeptide with tripeptide side chain, acylated at the N terminus by a fatty acid. It exhibits a potent anti-endotoxin. Colistin interacts with the anionic LPS molecules and displaces calcium and magnesium ions. It solubilzes the cytoplasmic membrane resulting in leakage of cytosol which contributes to the bactericidal effect.
General description
Chemical structure: peptide
Other Notes
Keep container tightly closed in a dry and well-ventilated place.Keep in a dry place.
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