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Antimycotic effects of octenidine and pirtenidine

M A Ghannoum1, K A Elteen, M Ellabib

  • 1Department of Botany and Microbiology, Kuwait University.

The Journal of Antimicrobial Chemotherapy
|February 1, 1990
PubMed

Insights

Octenidine and pirtenidine disrupt yeast cell membranes, causing leakage and inhibiting growth. These antiseptics show significant antifungal activity against Candida albicans, affecting key cellular processes.

Area of Science:

  • Antimicrobial research
  • Mycology
  • Cell biology

Background:

  • Yeasts, particularly Candida albicans, are significant human pathogens.
  • Antiseptics are crucial for infection control.
  • Understanding the mechanisms of action of antiseptics on yeasts is vital.

Purpose of the Study:

  • To investigate the antifungal effects of octenidine and pirtenidine on yeasts.
  • To determine the minimum inhibitory concentration (MIC) and minimum causal concentration (MCC) of these agents.
  • To elucidate the impact of octenidine and pirtenidine on yeast growth, morphology, and ultrastructure.

Main Methods:

  • Determination of MIC and MCC values for octenidine and pirtenidine against yeast strains.
  • Assessment of inhibitory effects on yeast growth, budding, and germ tube formation.
  • Microscopic and ultrastructural analysis of yeast cells treated with the antiseptics.

Main Results:

  • Octenidine and pirtenidine demonstrated significant antifungal activity.
  • MIC and MCC values were established for both agents.
  • Extensive leakage of cytoplasmic contents was observed, linked to morphological and ultrastructural damage.

Conclusions:

  • Octenidine and pirtenidine effectively inhibit yeast growth and key developmental processes.
  • The observed cellular damage, including cytoplasmic leakage, is a primary mechanism of action.
  • These findings support the potential of octenidine and pirtenidine as effective antifungal agents.

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