Cefotaxime: rate of bacterial killing and interactions with serum and leukocyte activity.

Autores

  • Giuliana Gialdroni Grassi Chair of Chemotherapy. Istituto Forlanini. University of Pavia. Italy
  • Patrizia Mangiarotti Chair of Chemotherapy. Istituto Forlanini. University of Pavia. Italy
  • Anna Fietta Chair of Chemotherapy. Istituto Forlanini. University of Pavia. Italy

DOI:

https://doi.org/10.20344/amp.3790

Resumo

Cefotaxime (HR 756) was compared with cefazolin and cephaloridine with regard to the rate of bacterial killing and to the influence on the bactericidal activity of human serum and polyrnorphonuclear leukocytes. At concentrations equal to 1-2 x MIC cefotaxime showed a more rapid and complete bactericidal activity on E. coil K 12 than cephaloridine and cefazolin. In presence of the latters in fact, bacterial regrowth was observed after 24 hours. On S. aureus a complete killing activity of cefotaxime appeared at concentrations of 8 x MIC. A synergism seemed to exist between the complement dependent bactericidal activity of normal human serum and cephalosporins. E. coil K 12 (a rough strain) was killed by the combination of human serum and both cefotaxime and cefazolin at concentrations that were not bactericidal by themselves. Cephaloridine on the contrary showed an additive activity with normal human serum. Finally evidence that cefotaxime enhanced the bactericidal activity of human polymorphonuclear leukocytes against S. faecaiis, is reported.

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1.
Gialdroni Grassi G, Mangiarotti P, Fietta A. Cefotaxime: rate of bacterial killing and interactions with serum and leukocyte activity. Acta Med Port [Internet]. 30 de Março de 1983 [citado 18 de Julho de 2024];4(3):167-71. Disponível em: https://actamedicaportuguesa.com/revista/index.php/amp/article/view/3790

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