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Index
»
ARNOLD STERN pcol
»
Chapter 1
»
Drugs for Treating Bacterial Infectious Diseases
level: Drugs for Treating Bacterial Infectious Diseases
Questions and Answers List
level questions: Drugs for Treating Bacterial Infectious Diseases
Question
Answer
Inhibit bacterial cell-wall synthesis by binding to penicillin-binding proteins, inhibiting crosslinking enzymes, and activating autolytic enzymes tha disrupt bacterial cell wall that is Streptococci, meningococci, pneumococci, gram-positive bacilli, gonococci, spirochetes
Penicillins
Inhibits protein synthesis by binding, to part of the 50S ribosomal , subunit
Macrolides
Inhibits synthesis of cell-wall, mucopeptides (peptidoglycans)
Vancomycin
Inhibits peptide bond formation by binding to the 50S ribosomal subunit inhibiting peptidyl transferase
Chloramphenicol
Inhibits protein synthesis by binding to the 30S subunit of ribosomes, which blocks formation of the initiation complex, causing misreading of the code on the mRNA template and disrupting polysomes
Aminoglycosides Systemic
Inhibits protein synthesis by binding to the 30S ribosomal subunit, which interferes with binding of aminoacyl tRNA
Tetracycline
Inhibit folic acid synthesis by competitive inhibition of dihydropteroate synthase
Sulfa drugs
Inhibits folic acid synthesis by inhibition of dihydrofolate reductase
Trimethoprim
Inhibits topoisomerase II (DNA gyrase)
Fluoroquinolones
Prototype of a narrow spectrum Penicillinase-resistant that is Staphylococci
Methicillin
prototype of a narrow spectrum Penicillinase-susceptible
Penicillin G
prototype of a wide spectrum Penicillinase-susceptible that is Similar to penicillin G; also includes Penicillinase-susceptible E. coli, P. mirabilis, and H. influenzae.
ampicillin
prototype of Wide spectrum Penicillinase-susceptible that is Gram-negative rods and especially useful for Pseudomonas spp.
Carbenicillin
prototype of First-generation Cephalosporins that is Gram-positive cocci, E. coli, and K. pneumoniae
Cephalothin
prototype of 2nd-generation Cephalosporins that is Greater activity against gram-negative organisms than first-generation cephalosporins
Cefamandole
prototype of 3rd-generation Cephalosporins that is Broader activity against resistant gram negative organisms; some derivatives penetrate the blood-brain barrier
Cefoperazone
prototype of Carbapenem that is Wide action against gram-positive cocci, gram-negative rods, and some anaerobes
Imipenem
prototype of Monobactam that is Resistant to β-lactamases produced by gram-negative rods.
Aztreonam