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[Experimental aspergillosis in mice].

I Haller

    Dermatologica
    |January 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    This study evaluates a mouse model for screening antifungal drugs against Aspergillus fumigatus. Intravenous infection effectively induced lethal aspergillosis, showing promise for antimycotic drug development.

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    Area of Science:

    • Medical Mycology
    • Pharmacology

    Background:

    • Aspergillosis, a fungal infection caused by Aspergillus species, poses a significant threat, necessitating effective treatments.
    • Developing new antimycotic agents requires reliable preclinical models to assess therapeutic efficacy.

    Purpose of the Study:

    • To evaluate the utility of experimentally induced murine aspergillosis as a model for screening novel antimycotic compounds.
    • To investigate the differences between the mouse model and human aspergillus infections.

    Main Methods:

    • Mice were infected intravenously with Aspergillus fumigatus spores ( > 10^6) to induce kidney abscesses and lethal infection.
    • Intratracheal inoculation with 2 x 10^6 spores did not result in observable symptoms.
    • The efficacy of various antimycotic agents, including amphotericin B, 5-fluorocytosine, and the imidazole derivative BAY h 4364, was assessed.

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    Main Results:

    • Intravenous infection with a high dose of Aspergillus fumigatus spores reliably induced acute, lethal aspergillosis in mice, characterized by kidney abscess formation.
    • Intratracheal administration of spores did not elicit a disease response.
    • Amphotericin B, 5-fluorocytosine, and BAY h 4364 demonstrated significant therapeutic efficacy in the mouse model.

    Conclusions:

    • Experimentally induced murine aspergillosis via intravenous inoculation is a viable model for screening antimycotic drugs.
    • The model highlights key differences from human infections, particularly regarding infectious dose and route.
    • Effective agents like amphotericin B, 5-fluorocytosine, and BAY h 4364 show promise for treating aspergillosis.