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Related Experiment Videos

Experimental candidiasis after thermal injury.

R C Fader, D Nunez, J Unbehagen

    Infection and Immunity
    |September 1, 1985
    PubMed
    Summary

    Thermal injury enhances Candida albicans infection in mice. Deeper burns (7-second scald) led to increased fungal load and systemic invasion compared to shallower burns (2-second scald).

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    Area of Science:

    • Medical Mycology
    • Infectious Diseases
    • Burn Injury Pathogenesis

    Background:

    • Candida albicans is an opportunistic fungal pathogen.
    • Burn injuries create a susceptible host environment for infections.
    • Understanding fungal infection dynamics in burn models is crucial.

    Purpose of the Study:

    • To investigate the impact of thermal injury depth on Candida albicans infection in a murine model.
    • To assess the potential for systemic invasion of C. albicans following burn inoculation.
    • To establish a relevant animal model for studying candidiasis in burn patients.

    Main Methods:

    • Female mice received either no burn or a 20% total body surface area 2-second or 7-second scald burn.
    • Burn wounds were inoculated with a clinical isolate of Candida albicans.
    • Fungal burden in tissue was quantified at various time points post-inoculation.
    • Histological confirmation of burn depth and systemic invasion (kidney) was performed.

    Main Results:

    • Fungal load increased significantly in 7-second burn wounds by 72 hours, unlike in unburned or 2-second burn groups.
    • Deeper (7-second) burns showed significantly higher fungal burdens compared to shallower (2-second) burns at all measured time points.
    • Systemic invasion, evidenced by recovery from kidneys, occurred in a small percentage of mice with 7-second burns, but not in those with 2-second burns.

    Conclusions:

    • Thermal injury significantly enhances the infectivity of Candida albicans.
    • Burn depth is a critical factor influencing fungal proliferation and systemic dissemination.
    • This murine model effectively demonstrates burn-associated candidiasis and aids in virulence factor research.

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