Cephalosporine

The cephalosporines are a class of antibiotic ß-lactamines. With the Céphamycine S, they train the sub-group of the Céphem S.

History

Mode of action

The cephalosporines inhibit the development of the bacterial wall, while interfering with the synthesis of the Peptidoglycane or Muréine, by a competitive mechanism of inhibition of the extra-cytoplasmic transpeptidases.

Generations

The core of the cephalosporines can be modified to acquire various properties.

GRAM POS. <=======================> GRAM NEG. <= Céphalo 1st gen.=> <= Céphalo 2nd gen =>. <======= Céphalo 3rd gen.======> <========== Céphalo 4th gen.===============>

Cephalosporines of first generation

Escherichia coli , Klebsiella pneumoniae and Proteus mirabilis , goal cuts No activity against Bacteroides fragilis , enterococci, methicilllin-resistant staphylococci, Pseudomonas , Acinetobacter , Enterobacter , indol-positive Proteus gold Serratia . -->

Cephalosporines of second generation

cocci. They resistant are also more to Beta-lactamase. -->
  • Céfamandole

  • Céfuroxime
  • Céfonicid
  • Céforanid
  • Cefprozil
  • Loracarbef
  • Céfotétan
  • Céfaclor

Cephalosporines of third generation

Cephalosporines has wide spectrum

  • Céfépime

  • Cefpirome

References

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