Antimicrobials: Selective Toxicity Flashcards
Prototypical Penicillins
Humans don’t have cell walls
Cephalosporins: Penicillinase resistant
Humans don’t have cell walls
Carbapenems. Beta lactamase resistant.
Humans don’t have cell walls
Monobactams
Humans don’t have cell walls
Vancomycin
Humans don’t have cell walls
Macrolides
Humans don’t have 50S
Tetracylines
Humans don’t have 30S
Metronidazole
Active on organisms performing anaerobic respiration
Fluoroquinolones
Humans don’t have DNA gyrase, we supercoil in other ways
Sulfonamides
Humans get Folic Acid from diet, don’t have to synthesize it for DNA. Also, humans lack DHPS enzyme
Nitrofurantoin
Mamillian enzymes don’t reduce it as rapidly
Antituberculuar Agents (Rifampin)
Bacteria have different RNA polymerase