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Related Experiment Videos

Systemic candidiasis in Sprague-Dawley rats

A Schmidt1

  • 1Bayer AG, Pharma Research, Inst. Chemotherapy, Wuppertal, Germany.

Journal of Medical and Veterinary Mycology : Bi-Monthly Publication of the International Society for Human and Animal Mycology
|March 1, 1996
PubMed
Summary

A new rat model for generalized Candida albicans infection shows severe organ spread and 100% lethality. Antifungal treatments with amphotericin B or fluconazole demonstrated long-term survival in rats.

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Area of Science:

  • Mycology
  • Infectious Diseases
  • Animal Models

Background:

  • Candida albicans is a fungal pathogen causing systemic infections.
  • Existing mouse models have limitations in mimicking generalized infections.
  • A need exists for a robust animal model to evaluate antifungal efficacy.

Purpose of the Study:

  • To establish a reproducible rat model for generalized Candida albicans infection.
  • To evaluate the dissemination and pathological impact of C. albicans in rats.
  • To assess the efficacy of antifungal agents in this new model.

Main Methods:

  • Establishment of a generalized Candida albicans infection model in Sprague-Dawley rats.
  • Detailed pathological examination of infected organs (kidneys, brain, heart, liver, lung, retina, spleen).
  • Assessment of survival rates and efficacy of antifungal treatments (amphotericin B, fluconazole).

Main Results:

  • The rat model exhibited severe C. albicans dissemination to multiple organs.
  • Pathological findings included granulomatous nephritis and severe pneumonitis.
  • Lethality reached 100% within one week, with deaths occurring between days 5-7.
  • Amphotericin B and fluconazole treatments resulted in long-term survival (>4 months).

Conclusions:

  • The established rat model provides a severe and disseminated platform for evaluating antifungal compounds.
  • This model offers advantages over existing mouse models for in vivo antifungal efficacy studies.
  • Successful long-term survival with amphotericin B and fluconazole highlights therapeutic potential.

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