Antimicrobial need to knows Flashcards
what can measure total cell counts
Flow cytometry, Turbidimetry and microscopic count
beta-lactams
penicillin and cephalosporin
beta-lactams target
Tpase- inhibit peptidoglycan
b-lactams more effective against
gram positive- bc more peptidoglycan = more damage
Aminoglycoside 2 examples
kanamycin and streptomycin
aminoglycisodes target
30S subunit- mRNA misreading - proteins synthesis
aminoglycosides effect on microorganism is
bactericidal - kill
Chloramphenicol (chlor-ram-phen-e-coal) target ____
23S rRNA (50S) - bacteriostatic - inhibit
Macrolides example
Erythromycin (E-rith-row-mycin)
Macrolides and Tetracyclins both block
protein synthesis
Macrolides and Chloramphenicols target the ___S subunit while Tetracycline and Aminoglycosides target the ____S subunit
50 S, 30 S
Growth factor analogs main example
Sulfanilamides (Suf-ann-ill-a-mide)
sulfanilamides ( growth factor analogs) target
folic acid synthesis
Nucleic acid base analogs such as ________ target _______
5-fluorouracil acyclovir targets mRNA synthesis and viral polymerase
Quinolones such as _______ target _____
Cyprofloxacin target DNA gyrase
Ergosterols synthesis example _______ target______
Nystatin , Fluconazole target ergosterol synthesis
Cyprofloxacin is in ____ class
Quinalone
Cyprofloxacin inhibits/targets
DNA gyrase - inhibiting cell division = bacteriostatic
4 drugs that inhibit protein synthesis
- chloramphenicol (from chloramphenicol group)
- Erythromycin ( Macrolides group )
- Streptomycin & Kanamycin (Aminoglycoside group)
- Tetracyclins (tetracyclines group )
which drug inhibits folic acid synthesis
Sulfanilamides from the Growth factor analog group
Ergosterol synthesis group drugs - examples
Nystatin and Fluconazole
what is ergosterol
analogous to cholesterol in the membrane of animals- only in fungi and yeast
Chloramphenicol targets
23S rRNA- block peptide elongation and protein synthesis
Ciprofloxacin targets
DNA gyrase ( part of Quinalone group )
Cephalosporin targets
Peptidylglycan ( in Beta-lactam group with penicillin)
which 4 groups are soley bacteriostatic?
Chloramphenicol,
Tetracyclines, Macrolides and Growth factor analougs
Which 2 are bactericidal ?
Amino glycosides and Quinalones
how do beta-lactams interact/kill/inhibit microgranisms?
Bacteriostatic, cidcal and lytic