Cephalosporin | Mechanisms Of Action | Resistance | Adverse Effects

#pharmacology #medicine #cephalosporin #antibiotics #bacteria #drugs #medlecto
Initially derived from the fungus Cephalosporium sp., cephalosporins are a large group of bactericidal antimicrobials that work via their β-lactam rings. The β-lactam rings bind to the penicillin-binding protein and inhibit its normal activity. Unable to synthesize a cell wall, the bacteria die.
Resistance arises when the PBPs-and particularly the transpeptidases-are modified, or when they are protected by beta-lactamases or 'permeability barriers'.